Merge branch 'main' into feature-relationship-versioning-contribution

dspace-api/pom.xml

@@ -550,10 +550,17 @@
             <groupId>com.ibm.icu</groupId>
             <artifactId>icu4j</artifactId>
         </dependency>
+        <!-- Codebase at https://github.com/OCLC-Research/oaiharvester2/ -->
         <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>oclc-harvester2</artifactId>
         </dependency>
+        <!-- Xalan is REQUIRED by 'oclc-harvester2' listed above (OAI harvesting fails without it).
+             Please do NOT use Xalan in DSpace codebase as it is not well maintained. -->
+        <dependency>
+            <groupId>xalan</groupId>
+            <artifactId>xalan</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.dspace</groupId>
             <artifactId>dspace-services</artifactId>

dspace-api/src/main/java/org/dspace/app/bulkedit/MetadataExportSearch.java

@@ -0,0 +1,170 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+
+package org.dspace.app.bulkedit;
+
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Iterator;
+import java.util.List;
+import java.util.UUID;
+
+import org.apache.commons.cli.ParseException;
+import org.dspace.content.Item;
+import org.dspace.content.MetadataDSpaceCsvExportServiceImpl;
+import org.dspace.content.factory.ContentServiceFactory;
+import org.dspace.content.service.CollectionService;
+import org.dspace.content.service.CommunityService;
+import org.dspace.content.service.MetadataDSpaceCsvExportService;
+import org.dspace.core.Context;
+import org.dspace.discovery.DiscoverQuery;
+import org.dspace.discovery.IndexableObject;
+import org.dspace.discovery.SearchService;
+import org.dspace.discovery.SearchUtils;
+import org.dspace.discovery.configuration.DiscoveryConfiguration;
+import org.dspace.discovery.configuration.DiscoveryConfigurationService;
+import org.dspace.discovery.indexobject.IndexableCollection;
+import org.dspace.discovery.indexobject.IndexableCommunity;
+import org.dspace.discovery.utils.DiscoverQueryBuilder;
+import org.dspace.discovery.utils.parameter.QueryBuilderSearchFilter;
+import org.dspace.eperson.factory.EPersonServiceFactory;
+import org.dspace.eperson.service.EPersonService;
+import org.dspace.scripts.DSpaceRunnable;
+import org.dspace.sort.SortOption;
+import org.dspace.utils.DSpace;
+
+/**
+ * Metadata exporter to allow the batch export of metadata from a discovery search into a file
+ *
+ */
+public class MetadataExportSearch extends DSpaceRunnable<MetadataExportSearchScriptConfiguration> {
+    private static final String EXPORT_CSV = "exportCSV";
+    private boolean help = false;
+    private String identifier;
+    private String discoveryConfigName;
+    private String[] filterQueryStrings;
+    private boolean hasScope = false;
+    private String query;
+
+    private SearchService searchService;
+    private MetadataDSpaceCsvExportService metadataDSpaceCsvExportService;
+    private EPersonService ePersonService;
+    private DiscoveryConfigurationService discoveryConfigurationService;
+    private CommunityService communityService;
+    private CollectionService collectionService;
+    private DiscoverQueryBuilder queryBuilder;
+
+    @Override
+    public MetadataExportSearchScriptConfiguration getScriptConfiguration() {
+        return new DSpace().getServiceManager()
+            .getServiceByName("metadata-export-search", MetadataExportSearchScriptConfiguration.class);
+    }
+
+    @Override
+    public void setup() throws ParseException {
+        searchService = SearchUtils.getSearchService();
+        metadataDSpaceCsvExportService = new DSpace().getServiceManager()
+                                                     .getServiceByName(
+                                                         MetadataDSpaceCsvExportServiceImpl.class.getCanonicalName(),
+                                                         MetadataDSpaceCsvExportService.class
+                                                     );
+        ePersonService = EPersonServiceFactory.getInstance().getEPersonService();
+        discoveryConfigurationService = SearchUtils.getConfigurationService();
+        communityService = ContentServiceFactory.getInstance().getCommunityService();
+        collectionService = ContentServiceFactory.getInstance().getCollectionService();
+        queryBuilder = SearchUtils.getQueryBuilder();
+
+        if (commandLine.hasOption('h')) {
+            help = true;
+            return;
+        }
+
+        if (commandLine.hasOption('q')) {
+            query = commandLine.getOptionValue('q');
+        }
+
+        if (commandLine.hasOption('s')) {
+            hasScope = true;
+            identifier = commandLine.getOptionValue('s');
+        }
+
+        if (commandLine.hasOption('c')) {
+            discoveryConfigName = commandLine.getOptionValue('c');
+        }
+
+        if (commandLine.hasOption('f')) {
+            filterQueryStrings = commandLine.getOptionValues('f');
+        }
+    }
+
+    @Override
+    public void internalRun() throws Exception {
+        if (help) {
+            loghelpinfo();
+            printHelp();
+            return;
+        }
+        handler.logDebug("starting search export");
+
+        IndexableObject dso = null;
+        Context context = new Context();
+        context.setCurrentUser(ePersonService.find(context, this.getEpersonIdentifier()));
+
+        if (hasScope) {
+            dso = resolveScope(context, identifier);
+        }
+
+        DiscoveryConfiguration discoveryConfiguration =
+            discoveryConfigurationService.getDiscoveryConfiguration(discoveryConfigName);
+
+        List<QueryBuilderSearchFilter> queryBuilderSearchFilters = new ArrayList<>();
+
+        handler.logDebug("processing filter queries");
+        if (filterQueryStrings != null) {
+            for (String filterQueryString: filterQueryStrings) {
+                String field = filterQueryString.split(",", 2)[0];
+                String operator = filterQueryString.split("(,|=)", 3)[1];
+                String value = filterQueryString.split("=", 2)[1];
+                QueryBuilderSearchFilter queryBuilderSearchFilter =
+                    new QueryBuilderSearchFilter(field, operator, value);
+                queryBuilderSearchFilters.add(queryBuilderSearchFilter);
+            }
+        }
+        handler.logDebug("building query");
+        DiscoverQuery discoverQuery =
+            queryBuilder.buildQuery(context, dso, discoveryConfiguration, query, queryBuilderSearchFilters,
+            "Item", 10, Long.getLong("0"), null, SortOption.DESCENDING);
+        handler.logDebug("creating iterator");
+
+        Iterator<Item> itemIterator = searchService.iteratorSearch(context, dso, discoverQuery);
+        handler.logDebug("creating dspacecsv");
+        DSpaceCSV dSpaceCSV = metadataDSpaceCsvExportService.export(context, itemIterator, true);
+        handler.logDebug("writing to file " + getFileNameOrExportFile());
+        handler.writeFilestream(context, getFileNameOrExportFile(), dSpaceCSV.getInputStream(), EXPORT_CSV);
+        context.restoreAuthSystemState();
+        context.complete();
+
+    }
+
+    protected void loghelpinfo() {
+        handler.logInfo("metadata-export");
+    }
+
+    protected String getFileNameOrExportFile() {
+        return "metadataExportSearch.csv";
+    }
+
+    public IndexableObject resolveScope(Context context, String id) throws SQLException {
+        UUID uuid = UUID.fromString(id);
+        IndexableObject scopeObj = new IndexableCommunity(communityService.find(context, uuid));
+        if (scopeObj.getIndexedObject() == null) {
+            scopeObj = new IndexableCollection(collectionService.find(context, uuid));
+        }
+        return scopeObj;
+    }
+}

dspace-api/src/main/java/org/dspace/app/bulkedit/MetadataExportSearchCli.java

@@ -0,0 +1,20 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+
+package org.dspace.app.bulkedit;
+
+/**
+ * The cli version of the {@link MetadataExportSearch} script
+ */
+public class MetadataExportSearchCli extends MetadataExportSearch {
+
+    @Override
+    protected String getFileNameOrExportFile() {
+        return commandLine.getOptionValue('n');
+    }
+}

dspace-api/src/main/java/org/dspace/app/bulkedit/MetadataExportSearchCliScriptConfiguration.java

@@ -0,0 +1,26 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+
+package org.dspace.app.bulkedit;
+
+import org.apache.commons.cli.Options;
+
+/**
+ * This is the CLI version of the {@link MetadataExportSearchScriptConfiguration} class that handles the
+ * configuration for the {@link MetadataExportSearchCli} script
+ */
+public class MetadataExportSearchCliScriptConfiguration
+    extends MetadataExportSearchScriptConfiguration<MetadataExportSearchCli> {
+
+    @Override
+    public Options getOptions() {
+        Options options = super.getOptions();
+        options.addOption("n", "filename", true, "the filename to export to");
+        return super.getOptions();
+    }
+}

dspace-api/src/main/java/org/dspace/app/bulkedit/MetadataExportSearchScriptConfiguration.java

@@ -0,0 +1,62 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+
+package org.dspace.app.bulkedit;
+
+import org.apache.commons.cli.Options;
+import org.dspace.core.Context;
+import org.dspace.scripts.configuration.ScriptConfiguration;
+
+/**
+ * The {@link ScriptConfiguration} for the {@link MetadataExportSearch} script
+ */
+public class MetadataExportSearchScriptConfiguration<T extends MetadataExportSearch> extends ScriptConfiguration<T> {
+
+    private Class<T> dspaceRunnableclass;
+
+    @Override
+    public Class<T> getDspaceRunnableClass() {
+        return dspaceRunnableclass;
+    }
+
+    @Override
+    public void setDspaceRunnableClass(Class<T> dspaceRunnableClass) {
+        this.dspaceRunnableclass = dspaceRunnableClass;
+    }
+
+    @Override
+    public boolean isAllowedToExecute(Context context) {
+        return true;
+    }
+
+    @Override
+    public Options getOptions() {
+        if (options == null) {
+            Options options = new Options();
+            options.addOption("q", "query", true,
+                "The discovery search string to will be used to match records. Not URL encoded");
+            options.getOption("q").setType(String.class);
+            options.addOption("s", "scope", true,
+                "UUID of a specific DSpace container (site, community or collection) to which the search has to be " +
+                    "limited");
+            options.getOption("s").setType(String.class);
+            options.addOption("c", "configuration", true,
+                "The name of a Discovery configuration that should be used by this search");
+            options.getOption("c").setType(String.class);
+            options.addOption("f", "filter", true,
+                "Advanced search filter that has to be used to filter the result set, with syntax `<:filter-name>," +
+                    "<:filter-operator>=<:filter-value>`. Not URL encoded. For example `author," +
+                    "authority=5df05073-3be7-410d-8166-e254369e4166` or `title,contains=sample text`");
+            options.getOption("f").setType(String.class);
+            options.addOption("h", "help", false, "help");
+
+            super.options =  options;
+        }
+        return options;
+    }
+}

dspace-api/src/main/java/org/dspace/app/orcid/OrcidToken.java

@@ -0,0 +1,85 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid;
+
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.OneToOne;
+import javax.persistence.SequenceGenerator;
+import javax.persistence.Table;
+
+import org.dspace.content.Item;
+import org.dspace.core.ReloadableEntity;
+import org.dspace.eperson.EPerson;
+
+/**
+ * Entity that stores ORCID access-token related to a given eperson or a given
+ * profile item.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+@Entity
+@Table(name = "orcid_token")
+public class OrcidToken implements ReloadableEntity<Integer> {
+
+    @Id
+    @GeneratedValue(strategy = GenerationType.SEQUENCE, generator = "orcid_token_id_seq")
+    @SequenceGenerator(name = "orcid_token_id_seq", sequenceName = "orcid_token_id_seq", allocationSize = 1)
+    private Integer id;
+
+    @OneToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "eperson_id")
+    protected EPerson ePerson;
+
+    @OneToOne(fetch = FetchType.LAZY)
+    @JoinColumn(name = "profile_item_id")
+    private Item profileItem;
+
+    @Column(name = "access_token")
+    private String accessToken;
+
+    @Override
+    public Integer getID() {
+        return id;
+    }
+
+    public void setId(Integer id) {
+        this.id = id;
+    }
+
+    public EPerson getEPerson() {
+        return ePerson;
+    }
+
+    public void setEPerson(EPerson eperson) {
+        this.ePerson = eperson;
+    }
+
+    public Item getProfileItem() {
+        return profileItem;
+    }
+
+    public void setProfileItem(Item profileItem) {
+        this.profileItem = profileItem;
+    }
+
+    public String getAccessToken() {
+        return accessToken;
+    }
+
+    public void setAccessToken(String accessToken) {
+        this.accessToken = accessToken;
+    }
+
+}

dspace-api/src/main/java/org/dspace/app/orcid/client/OrcidClient.java

@@ -0,0 +1,42 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid.client;
+
+import org.dspace.app.orcid.exception.OrcidClientException;
+import org.dspace.app.orcid.model.OrcidTokenResponseDTO;
+import org.orcid.jaxb.model.v3.release.record.Person;
+
+/**
+ * Interface for classes that allow to contact ORCID.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public interface OrcidClient {
+
+    /**
+     * Exchange the authorization code for an ORCID iD and 3-legged access token.
+     * The authorization code expires upon use.
+     *
+     * @param  code                 the authorization code
+     * @return                      the ORCID token
+     * @throws OrcidClientException if some error occurs during the exchange
+     */
+    OrcidTokenResponseDTO getAccessToken(String code);
+
+    /**
+     * Retrieves a summary of the ORCID person related to the given orcid.
+     *
+     * @param  accessToken          the access token
+     * @param  orcid                the orcid id of the record to retrieve
+     * @return                      the Person
+     * @throws OrcidClientException if some error occurs during the search
+     */
+    Person getPerson(String accessToken, String orcid);
+
+}

dspace-api/src/main/java/org/dspace/app/orcid/client/OrcidClientImpl.java

@@ -0,0 +1,167 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid.client;
+
+import static org.apache.http.client.methods.RequestBuilder.get;
+
+import java.io.IOException;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.List;
+import javax.xml.bind.JAXBContext;
+import javax.xml.bind.Unmarshaller;
+import javax.xml.stream.XMLInputFactory;
+import javax.xml.stream.XMLStreamReader;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.apache.commons.io.IOUtils;
+import org.apache.http.HttpEntity;
+import org.apache.http.HttpResponse;
+import org.apache.http.HttpStatus;
+import org.apache.http.NameValuePair;
+import org.apache.http.client.HttpClient;
+import org.apache.http.client.entity.UrlEncodedFormEntity;
+import org.apache.http.client.methods.HttpUriRequest;
+import org.apache.http.client.methods.RequestBuilder;
+import org.apache.http.impl.client.HttpClientBuilder;
+import org.apache.http.message.BasicNameValuePair;
+import org.dspace.app.orcid.exception.OrcidClientException;
+import org.dspace.app.orcid.model.OrcidTokenResponseDTO;
+import org.dspace.util.ThrowingSupplier;
+import org.orcid.jaxb.model.v3.release.record.Person;
+
+/**
+ * Implementation of {@link OrcidClient}.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public class OrcidClientImpl implements OrcidClient {
+
+    private final OrcidConfiguration orcidConfiguration;
+
+    private final ObjectMapper objectMapper;
+
+    public OrcidClientImpl(OrcidConfiguration orcidConfiguration) {
+        this.orcidConfiguration = orcidConfiguration;
+        this.objectMapper = new ObjectMapper();
+    }
+
+    @Override
+    public OrcidTokenResponseDTO getAccessToken(String code) {
+
+        List<NameValuePair> params = new ArrayList<NameValuePair>();
+        params.add(new BasicNameValuePair("code", code));
+        params.add(new BasicNameValuePair("grant_type", "authorization_code"));
+        params.add(new BasicNameValuePair("client_id", orcidConfiguration.getClientId()));
+        params.add(new BasicNameValuePair("client_secret", orcidConfiguration.getClientSecret()));
+
+        HttpUriRequest httpUriRequest = RequestBuilder.post(orcidConfiguration.getTokenEndpointUrl())
+            .addHeader("Content-Type", "application/x-www-form-urlencoded")
+            .addHeader("Accept", "application/json")
+            .setEntity(new UrlEncodedFormEntity(params, Charset.defaultCharset()))
+            .build();
+
+        return executeAndParseJson(httpUriRequest, OrcidTokenResponseDTO.class);
+
+    }
+
+    @Override
+    public Person getPerson(String accessToken, String orcid) {
+        HttpUriRequest httpUriRequest = buildGetUriRequest(accessToken, "/" + orcid + "/person");
+        return executeAndUnmarshall(httpUriRequest, false, Person.class);
+    }
+
+    private HttpUriRequest buildGetUriRequest(String accessToken, String relativePath) {
+        return get(orcidConfiguration.getApiUrl() + relativePath.trim())
+            .addHeader("Content-Type", "application/x-www-form-urlencoded")
+            .addHeader("Authorization", "Bearer " + accessToken)
+            .build();
+    }
+
+    private <T> T executeAndParseJson(HttpUriRequest httpUriRequest, Class<T> clazz) {
+
+        HttpClient client = HttpClientBuilder.create().build();
+
+        return executeAndReturns(() -> {
+
+            HttpResponse response = client.execute(httpUriRequest);
+
+            if (isNotSuccessfull(response)) {
+                throw new OrcidClientException(getStatusCode(response), formatErrorMessage(response));
+            }
+
+            return objectMapper.readValue(response.getEntity().getContent(), clazz);
+
+        });
+
+    }
+
+    private <T> T executeAndUnmarshall(HttpUriRequest httpUriRequest, boolean handleNotFoundAsNull, Class<T> clazz) {
+
+        HttpClient client = HttpClientBuilder.create().build();
+
+        return executeAndReturns(() -> {
+
+            HttpResponse response = client.execute(httpUriRequest);
+
+            if (handleNotFoundAsNull && isNotFound(response)) {
+                return null;
+            }
+
+            if (isNotSuccessfull(response)) {
+                throw new OrcidClientException(getStatusCode(response), formatErrorMessage(response));
+            }
+
+            return unmarshall(response.getEntity(), clazz);
+
+        });
+    }
+
+    private <T> T executeAndReturns(ThrowingSupplier<T, Exception> supplier) {
+        try {
+            return supplier.get();
+        } catch (OrcidClientException ex) {
+            throw ex;
+        } catch (Exception ex) {
+            throw new OrcidClientException(ex);
+        }
+    }
+
+    @SuppressWarnings("unchecked")
+    private <T> T unmarshall(HttpEntity entity, Class<T> clazz) throws Exception {
+        JAXBContext jaxbContext = JAXBContext.newInstance(clazz);
+        XMLInputFactory xmlInputFactory = XMLInputFactory.newFactory();
+        xmlInputFactory.setProperty(XMLInputFactory.SUPPORT_DTD, false);
+        XMLStreamReader xmlStreamReader = xmlInputFactory.createXMLStreamReader(entity.getContent());
+        Unmarshaller unmarshaller = jaxbContext.createUnmarshaller();
+        return (T) unmarshaller.unmarshal(xmlStreamReader);
+    }
+
+    private String formatErrorMessage(HttpResponse response) {
+        try {
+            return IOUtils.toString(response.getEntity().getContent(), Charset.defaultCharset());
+        } catch (UnsupportedOperationException | IOException e) {
+            return "Generic error";
+        }
+    }
+
+    private boolean isNotSuccessfull(HttpResponse response) {
+        int statusCode = getStatusCode(response);
+        return statusCode < 200 || statusCode > 299;
+    }
+
+    private boolean isNotFound(HttpResponse response) {
+        return getStatusCode(response) == HttpStatus.SC_NOT_FOUND;
+    }
+
+    private int getStatusCode(HttpResponse response) {
+        return response.getStatusLine().getStatusCode();
+    }
+
+}

dspace-api/src/main/java/org/dspace/app/orcid/client/OrcidConfiguration.java

@@ -0,0 +1,90 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid.client;
+
+import org.apache.commons.lang3.StringUtils;
+
+/**
+ * A class that contains all the configurations related to ORCID.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public final class OrcidConfiguration {
+
+    private String apiUrl;
+
+    private String redirectUrl;
+
+    private String clientId;
+
+    private String clientSecret;
+
+    private String tokenEndpointUrl;
+
+    private String authorizeEndpointUrl;
+
+    private String scopes;
+
+    public String getApiUrl() {
+        return apiUrl;
+    }
+
+    public void setApiUrl(String apiUrl) {
+        this.apiUrl = apiUrl;
+    }
+
+    public String getRedirectUrl() {
+        return redirectUrl;
+    }
+
+    public void setRedirectUrl(String redirectUrl) {
+        this.redirectUrl = redirectUrl;
+    }
+
+    public String getClientId() {
+        return clientId;
+    }
+
+    public void setClientId(String clientId) {
+        this.clientId = clientId;
+    }
+
+    public String getClientSecret() {
+        return clientSecret;
+    }
+
+    public void setClientSecret(String clientSecret) {
+        this.clientSecret = clientSecret;
+    }
+
+    public String getTokenEndpointUrl() {
+        return tokenEndpointUrl;
+    }
+
+    public void setTokenEndpointUrl(String tokenEndpointUrl) {
+        this.tokenEndpointUrl = tokenEndpointUrl;
+    }
+
+    public String getAuthorizeEndpointUrl() {
+        return authorizeEndpointUrl;
+    }
+
+    public void setAuthorizeEndpointUrl(String authorizeEndpointUrl) {
+        this.authorizeEndpointUrl = authorizeEndpointUrl;
+    }
+
+    public void setScopes(String scopes) {
+        this.scopes = scopes;
+    }
+
+    public String[] getScopes() {
+        return StringUtils.isNotBlank(scopes) ? StringUtils.split(scopes, ",") : new String[] {};
+    }
+
+}

dspace-api/src/main/java/org/dspace/app/orcid/dao/OrcidTokenDAO.java

@@ -0,0 +1,45 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid.dao;
+
+import org.dspace.app.orcid.OrcidToken;
+import org.dspace.content.Item;
+import org.dspace.core.Context;
+import org.dspace.core.GenericDAO;
+import org.dspace.eperson.EPerson;
+
+/**
+ * Database Access Object interface class for the OrcidToken object. The
+ * implementation of this class is responsible for all database calls for the
+ * OrcidToken object and is autowired by spring. This class should only be
+ * accessed from a single service and should never be exposed outside of the API
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public interface OrcidTokenDAO extends GenericDAO<OrcidToken> {
+
+    /**
+     * Find an OrcidToken by ePerson.
+     *
+     * @param  context the DSpace context
+     * @param  ePerson the ePerson to search for
+     * @return         the Orcid token, if any
+     */
+    public OrcidToken findByEPerson(Context context, EPerson ePerson);
+
+    /**
+     * Find an OrcidToken by profileItem.
+     *
+     * @param  context     the DSpace context
+     * @param  profileItem the profile item to search for
+     * @return             the Orcid token, if any
+     */
+    public OrcidToken findByProfileItem(Context context, Item profileItem);
+
+}

dspace-api/src/main/java/org/dspace/app/orcid/dao/impl/OrcidTokenDAOImpl.java

@@ -0,0 +1,50 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid.dao.impl;
+
+import java.sql.SQLException;
+import javax.persistence.Query;
+
+import org.dspace.app.orcid.OrcidToken;
+import org.dspace.app.orcid.dao.OrcidTokenDAO;
+import org.dspace.content.Item;
+import org.dspace.core.AbstractHibernateDAO;
+import org.dspace.core.Context;
+import org.dspace.eperson.EPerson;
+
+/**
+ * Implementation of {@link OrcidTokenDAO}.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public class OrcidTokenDAOImpl extends AbstractHibernateDAO<OrcidToken> implements OrcidTokenDAO {
+
+    @Override
+    public OrcidToken findByEPerson(Context context, EPerson ePerson) {
+        try {
+            Query query = createQuery(context, "FROM OrcidToken WHERE ePerson = :ePerson");
+            query.setParameter("ePerson", ePerson);
+            return singleResult(query);
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public OrcidToken findByProfileItem(Context context, Item profileItem) {
+        try {
+            Query query = createQuery(context, "FROM OrcidToken WHERE profileItem = :profileItem");
+            query.setParameter("profileItem", profileItem);
+            return singleResult(query);
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+}

dspace-api/src/main/java/org/dspace/app/orcid/exception/OrcidClientException.java

@@ -0,0 +1,48 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid.exception;
+
+/**
+ * Exception throwable from class that implements {@link OrcidClient} in case of
+ * error response from the ORCID registry.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public class OrcidClientException extends RuntimeException {
+
+    public static final String INVALID_GRANT_MESSAGE = "invalid_grant";
+
+    private static final long serialVersionUID = -7618061110212398216L;
+
+    private int status = 0;
+
+    public OrcidClientException(int status, String content) {
+        super(content);
+        this.status = status;
+    }
+
+    public OrcidClientException(Throwable cause) {
+        super(cause);
+    }
+
+    public int getStatus() {
+        return this.status;
+    }
+
+    /**
+     * Returns true if the exception is related to an invalid grant error
+     * (authentication code non valid), false otherwise
+     *
+     * @return the check result
+     */
+    public boolean isInvalidGrantException() {
+        return getMessage() != null && getMessage().contains(INVALID_GRANT_MESSAGE);
+    }
+
+}

dspace-api/src/main/java/org/dspace/app/orcid/model/OrcidEntityType.java

@@ -0,0 +1,28 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid.model;
+
+/**
+ * The types of activities defined on ORCID that can be synchronized.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public enum OrcidEntityType {
+
+    /**
+     * The publication/work activity.
+     */
+    PUBLICATION,
+
+    /**
+     * The funding activity.
+     */
+    FUNDING;
+
+}

dspace-api/src/main/java/org/dspace/app/orcid/model/OrcidTokenResponseDTO.java

@@ -0,0 +1,135 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid.model;
+
+import com.fasterxml.jackson.annotation.JsonIgnore;
+import com.fasterxml.jackson.annotation.JsonProperty;
+import org.apache.commons.lang3.StringUtils;
+
+/**
+ * This class map the response from and ORCID token endpoint.
+ *
+ * Response example:
+ *
+ * {
+ *  "access_token":"f5af9f51-07e6-4332-8f1a-c0c11c1e3728",
+ *  "token_type":"bearer",
+ *  "refresh_token":"f725f747-3a65-49f6-a231-3e8944ce464d",
+ *  "expires_in":631138518,
+ *  "scope":"/read-limited",
+ *  "name":"Sofia Garcia",
+ *  "orcid":"0000-0001-2345-6789"
+ * }
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4Science.it)
+ *
+ */
+public class OrcidTokenResponseDTO {
+
+    /**
+     * The access token release by the authorization server this is the most
+     * relevant item, because it allow the server to access to the user resources as
+     * defined in the scopes.
+     */
+    @JsonProperty("access_token")
+    private String accessToken;
+
+    /**
+     * The refresh token as defined in the OAuth standard.
+     */
+    @JsonProperty("refresh_token")
+    private String refreshToken;
+
+    /**
+     * It will be "bearer".
+     */
+    @JsonProperty("token_type")
+    private String tokenType;
+
+    /**
+     * The expiration timestamp in millis.
+     */
+    @JsonProperty("expires_in")
+    private int expiresIn;
+
+    /**
+     * List of scopes.
+     */
+    private String scope;
+
+    /**
+     * The ORCID user name.
+     */
+    private String name;
+
+    /**
+     * The ORCID user id.
+     */
+    private String orcid;
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getOrcid() {
+        return orcid;
+    }
+
+    public void setOrcid(String orcid) {
+        this.orcid = orcid;
+    }
+
+    public String getAccessToken() {
+        return accessToken;
+    }
+
+    public void setAccessToken(String accessToken) {
+        this.accessToken = accessToken;
+    }
+
+    public String getRefreshToken() {
+        return refreshToken;
+    }
+
+    public void setRefreshToken(String refreshToken) {
+        this.refreshToken = refreshToken;
+    }
+
+    public String getTokenType() {
+        return tokenType;
+    }
+
+    public void setTokenType(String tokenType) {
+        this.tokenType = tokenType;
+    }
+
+    public int getExpiresIn() {
+        return expiresIn;
+    }
+
+    public void setExpiresIn(int expiresIn) {
+        this.expiresIn = expiresIn;
+    }
+
+    public String getScope() {
+        return scope;
+    }
+
+    public void setScope(String scope) {
+        this.scope = scope;
+    }
+
+    @JsonIgnore
+    public String[] getScopeAsArray() {
+        return StringUtils.isEmpty(getScope()) ? new String[] {} : getScope().split(" ");
+    }
+}

dspace-api/src/main/java/org/dspace/app/orcid/service/OrcidSynchronizationService.java

@@ -0,0 +1,147 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid.service;
+
+import java.sql.SQLException;
+import java.util.List;
+import java.util.Optional;
+
+import org.dspace.app.orcid.model.OrcidEntityType;
+import org.dspace.app.orcid.model.OrcidTokenResponseDTO;
+import org.dspace.app.profile.OrcidEntitySyncPreference;
+import org.dspace.app.profile.OrcidProfileDisconnectionMode;
+import org.dspace.app.profile.OrcidProfileSyncPreference;
+import org.dspace.app.profile.OrcidSynchronizationMode;
+import org.dspace.content.Item;
+import org.dspace.core.Context;
+
+/**
+ * Service that handle the the syncronization between a DSpace profile and the
+ * relative ORCID profile, if any.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ */
+public interface OrcidSynchronizationService {
+
+    /**
+     * Check if the given item is linked to an ORCID profile.
+     *
+     * @param  context the relevant DSpace Context.
+     * @param  item    the item to check
+     * @return         true if the given item is linked to ORCID
+     */
+    boolean isLinkedToOrcid(Context context, Item item);
+
+    /**
+     * Configure the given profile with the data present in the given ORCID token.
+     * This action is required to synchronize profile and related entities with
+     * ORCID. No security check is done, it is therefore the caller's responsibility
+     * to verify for example that the current user has permission to connect the
+     * profile to ORCID (if necessary).
+     *
+     * @param  context      the relevant DSpace Context.
+     * @param  profile      the profile to configure
+     * @param  token        the ORCID token
+     * @throws SQLException if a SQL error occurs during the profile update
+     */
+    public void linkProfile(Context context, Item profile, OrcidTokenResponseDTO token) throws SQLException;
+
+    /**
+     * Disconnect the given profile from ORCID.
+     *
+     * @param  context      the relevant DSpace Context.
+     * @param  profile      the profile to disconnect
+     * @throws SQLException if a SQL error occurs during the profile update
+     */
+    public void unlinkProfile(Context context, Item profile) throws SQLException;
+
+    /**
+     * Set the synchronization preference for the given profile related to the given
+     * ORCID entity type.
+     *
+     * @param  context                  the relevant DSpace Context.
+     * @param  profile                  the researcher profile to update
+     * @param  entityType               the orcid entity type
+     * @param  value                    the new synchronization preference value
+     * @return                          true if the value has actually been updated,
+     *                                  false if the value to be set is the same as
+     *                                  the one already configured
+     * @throws SQLException             if a SQL error occurs during the profile
+     *                                  update
+     * @throws IllegalArgumentException if the given researcher profile is no linked
+     *                                  with an ORCID account
+     */
+    public boolean setEntityPreference(Context context, Item profile, OrcidEntityType entityType,
+                                       OrcidEntitySyncPreference value) throws SQLException;
+
+    /**
+     * Update the profile's synchronization preference for the given profile.
+     *
+     * @param  context                  the relevant DSpace Context.
+     * @param  profile                  the researcher profile to update
+     * @param  values                   the new synchronization preference values
+     * @return                          true if the value has actually been updated,
+     *                                  false if the value to be set is the same as
+     *                                  the one already configured
+     * @throws SQLException             if a SQL error occurs during the profile
+     *                                  update
+     * @throws IllegalArgumentException if the given researcher profile is no linked
+     *                                  with an ORCID account
+     */
+    public boolean setProfilePreference(Context context, Item profile,
+                                        List<OrcidProfileSyncPreference> values) throws SQLException;
+
+    /**
+     * Set the ORCID synchronization mode for the given profile.
+     *
+     * @param  context      the relevant DSpace Context.
+     * @param  profile      the researcher profile to update
+     * @param  value        the new synchronization mode value
+     * @return              true if the value has actually been updated, false if
+     *                      the value to be set is the same as the one already
+     *                      configured
+     * @throws SQLException if a SQL error occurs during the profile update
+     */
+    public boolean setSynchronizationMode(Context context, Item profile, OrcidSynchronizationMode value)
+        throws SQLException;
+
+    /**
+     * Returns the ORCID synchronization mode configured for the given profile item.
+     *
+     * @param  profile the researcher profile item
+     * @return         the synchronization mode
+     */
+    Optional<OrcidSynchronizationMode> getSynchronizationMode(Item profile);
+
+    /**
+     * Returns the ORCID synchronization preference related to the given entity type
+     * configured for the given profile item.
+     *
+     * @param  profile    the researcher profile item
+     * @param  entityType the orcid entity type
+     * @return            the configured preference
+     */
+    Optional<OrcidEntitySyncPreference> getEntityPreference(Item profile, OrcidEntityType entityType);
+
+    /**
+     * Returns the ORCID synchronization preferences related to the profile itself
+     * configured for the given profile item.
+     *
+     * @param  profile the researcher profile item
+     * @return         the synchronization mode
+     */
+    List<OrcidProfileSyncPreference> getProfilePreferences(Item profile);
+
+    /**
+     * Returns the configuration ORCID profile's disconnection mode. If that mode is
+     * not configured or the configuration is wrong, the value DISABLED is returned.
+     *
+     * @return the disconnection mode
+     */
+    OrcidProfileDisconnectionMode getDisconnectionMode();
+}

dspace-api/src/main/java/org/dspace/app/orcid/service/OrcidTokenService.java

@@ -0,0 +1,92 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid.service;
+
+import org.dspace.app.orcid.OrcidToken;
+import org.dspace.content.Item;
+import org.dspace.core.Context;
+import org.dspace.eperson.EPerson;
+
+/**
+ * Service that handle {@link OrcidToken} entities.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public interface OrcidTokenService {
+
+    /**
+     * Creates a new OrcidToken entity for the given ePerson and accessToken.
+     *
+     * @param  context     the DSpace context
+     * @param  ePerson     the EPerson
+     * @param  accessToken the access token
+     * @return             the created entity instance
+     */
+    public OrcidToken create(Context context, EPerson ePerson, String accessToken);
+
+    /**
+     * Creates a new OrcidToken entity for the given ePerson and accessToken.
+     *
+     * @param  context     the DSpace context
+     * @param  ePerson     the EPerson
+     * @param  profileItem the profile item
+     * @param  accessToken the access token
+     * @return             the created entity instance
+     */
+    public OrcidToken create(Context context, EPerson ePerson, Item profileItem, String accessToken);
+
+    /**
+     * Find an OrcidToken by ePerson.
+     *
+     * @param  context the DSpace context
+     * @param  ePerson the ePerson to search for
+     * @return         the Orcid token, if any
+     */
+    public OrcidToken findByEPerson(Context context, EPerson ePerson);
+
+    /**
+     * Find an OrcidToken by profileItem.
+     *
+     * @param  context     the DSpace context
+     * @param  profileItem the profile item to search for
+     * @return             the Orcid token, if any
+     */
+    public OrcidToken findByProfileItem(Context context, Item profileItem);
+
+    /**
+     * Delete the given ORCID token entity.
+     *
+     * @param context    the DSpace context
+     * @param orcidToken the ORCID token entity to delete
+     */
+    public void delete(Context context, OrcidToken orcidToken);
+
+    /**
+     * Delete all the ORCID token entities.
+     *
+     * @param context the DSpace context
+     */
+    public void deleteAll(Context context);
+
+    /**
+     * Deletes the ORCID token entity related to the given EPerson.
+     *
+     * @param context the DSpace context
+     * @param ePerson the ePerson for the deletion
+     */
+    public void deleteByEPerson(Context context, EPerson ePerson);
+
+    /**
+     * Deletes the ORCID token entity related to the given profile item.
+     *
+     * @param context     the DSpace context
+     * @param profileItem the item for the deletion
+     */
+    public void deleteByProfileItem(Context context, Item profileItem);
+}

dspace-api/src/main/java/org/dspace/app/orcid/service/impl/OrcidSynchronizationServiceImpl.java

@@ -0,0 +1,273 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid.service.impl;
+
+import static java.time.LocalDateTime.now;
+import static java.time.format.DateTimeFormatter.ISO_DATE_TIME;
+import static java.util.List.of;
+import static java.util.Optional.ofNullable;
+import static org.apache.commons.lang3.EnumUtils.isValidEnum;
+import static org.apache.commons.lang3.StringUtils.isBlank;
+import static org.dspace.content.Item.ANY;
+
+import java.sql.SQLException;
+import java.util.HashSet;
+import java.util.List;
+import java.util.Optional;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import org.apache.commons.codec.binary.StringUtils;
+import org.dspace.app.orcid.OrcidToken;
+import org.dspace.app.orcid.model.OrcidEntityType;
+import org.dspace.app.orcid.model.OrcidTokenResponseDTO;
+import org.dspace.app.orcid.service.OrcidSynchronizationService;
+import org.dspace.app.orcid.service.OrcidTokenService;
+import org.dspace.app.profile.OrcidEntitySyncPreference;
+import org.dspace.app.profile.OrcidProfileDisconnectionMode;
+import org.dspace.app.profile.OrcidProfileSyncPreference;
+import org.dspace.app.profile.OrcidSynchronizationMode;
+import org.dspace.authorize.AuthorizeException;
+import org.dspace.content.Item;
+import org.dspace.content.MetadataValue;
+import org.dspace.content.service.ItemService;
+import org.dspace.core.Context;
+import org.dspace.eperson.EPerson;
+import org.dspace.eperson.service.EPersonService;
+import org.dspace.services.ConfigurationService;
+import org.springframework.beans.factory.annotation.Autowired;
+
+/**
+ * Implementation of {@link OrcidSynchronizationService}.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public class OrcidSynchronizationServiceImpl implements OrcidSynchronizationService {
+
+    @Autowired
+    private ItemService itemService;
+
+    @Autowired
+    private ConfigurationService configurationService;
+
+    @Autowired
+    private EPersonService ePersonService;
+
+    @Autowired
+    private OrcidTokenService orcidTokenService;
+
+    @Override
+    public void linkProfile(Context context, Item profile, OrcidTokenResponseDTO token) throws SQLException {
+
+        EPerson ePerson = ePersonService.findByProfileItem(context, profile);
+        if (ePerson == null) {
+            throw new IllegalArgumentException(
+                "The given profile item is not related to any eperson. Item id: " + profile.getID());
+        }
+
+        String orcid = token.getOrcid();
+        String accessToken = token.getAccessToken();
+        String[] scopes = token.getScopeAsArray();
+
+        itemService.setMetadataSingleValue(context, profile, "person", "identifier", "orcid", null, orcid);
+        itemService.clearMetadata(context, profile, "dspace", "orcid", "scope", Item.ANY);
+        for (String scope : scopes) {
+            itemService.addMetadata(context, profile, "dspace", "orcid", "scope", null, scope);
+        }
+
+        if (isBlank(itemService.getMetadataFirstValue(profile, "dspace", "orcid", "authenticated", Item.ANY))) {
+            String currentDate = ISO_DATE_TIME.format(now());
+            itemService.setMetadataSingleValue(context, profile, "dspace", "orcid", "authenticated", null, currentDate);
+        }
+
+        setAccessToken(context, profile, ePerson, accessToken);
+
+        EPerson ePersonByOrcid = ePersonService.findByNetid(context, orcid);
+        if (ePersonByOrcid == null && isBlank(ePerson.getNetid())) {
+            ePerson.setNetid(orcid);
+            updateEPerson(context, ePerson);
+        }
+
+        updateItem(context, profile);
+
+    }
+
+    @Override
+    public void unlinkProfile(Context context, Item profile) throws SQLException {
+
+        itemService.clearMetadata(context, profile, "person", "identifier", "orcid", Item.ANY);
+        itemService.clearMetadata(context, profile, "dspace", "orcid", "scope", Item.ANY);
+        itemService.clearMetadata(context, profile, "dspace", "orcid", "authenticated", Item.ANY);
+
+        orcidTokenService.deleteByProfileItem(context, profile);
+
+        updateItem(context, profile);
+
+    }
+
+    @Override
+    public boolean setEntityPreference(Context context, Item profile, OrcidEntityType type,
+                                       OrcidEntitySyncPreference value) throws SQLException {
+        String metadataQualifier = "sync-" + type.name().toLowerCase() + "s";
+        return updatePreferenceForSynchronizingWithOrcid(context, profile, metadataQualifier, of(value.name()));
+    }
+
+    @Override
+    public boolean setProfilePreference(Context context, Item profile, List<OrcidProfileSyncPreference> values)
+        throws SQLException {
+
+        List<String> valuesAsString = values.stream()
+                                            .map(OrcidProfileSyncPreference::name)
+                                            .collect(Collectors.toList());
+
+        return updatePreferenceForSynchronizingWithOrcid(context, profile, "sync-profile", valuesAsString);
+
+    }
+
+    @Override
+    public boolean setSynchronizationMode(Context context, Item profile, OrcidSynchronizationMode value)
+        throws SQLException {
+
+        if (!isLinkedToOrcid(context, profile)) {
+            throw new IllegalArgumentException("The given profile cannot be configured for the ORCID "
+                                                   + "synchronization because it is not linked to any ORCID account: "
+                                                   + profile.getID());
+        }
+
+        String newValue = value.name();
+        String oldValue = itemService.getMetadataFirstValue(profile, "dspace", "orcid", "sync-mode", Item.ANY);
+
+        if (StringUtils.equals(oldValue, newValue)) {
+            return false;
+        } else {
+            itemService.setMetadataSingleValue(context, profile, "dspace", "orcid", "sync-mode", null, value.name());
+            return true;
+        }
+
+    }
+
+    @Override
+    public Optional<OrcidSynchronizationMode> getSynchronizationMode(Item item) {
+        return getMetadataValue(item, "dspace.orcid.sync-mode")
+            .map(metadataValue -> metadataValue.getValue())
+            .filter(value -> isValidEnum(OrcidSynchronizationMode.class, value))
+            .map(value -> OrcidSynchronizationMode.valueOf(value));
+    }
+
+    @Override
+    public Optional<OrcidEntitySyncPreference> getEntityPreference(Item item, OrcidEntityType entityType) {
+        return getMetadataValue(item, "dspace.orcid.sync-" + entityType.name().toLowerCase() + "s")
+            .map(metadataValue -> metadataValue.getValue())
+            .filter(value -> isValidEnum(OrcidEntitySyncPreference.class, value))
+            .map(value -> OrcidEntitySyncPreference.valueOf(value));
+    }
+
+    @Override
+    public List<OrcidProfileSyncPreference> getProfilePreferences(Item item) {
+        return getMetadataValues(item, "dspace.orcid.sync-profile")
+            .map(MetadataValue::getValue)
+            .filter(value -> isValidEnum(OrcidProfileSyncPreference.class, value))
+            .map(value -> OrcidProfileSyncPreference.valueOf(value))
+            .collect(Collectors.toList());
+    }
+
+    @Override
+    public boolean isLinkedToOrcid(Context context, Item item) {
+        return getOrcidAccessToken(context, item).isPresent() && getOrcid(item).isPresent();
+    }
+
+    @Override
+    public OrcidProfileDisconnectionMode getDisconnectionMode() {
+        String value = configurationService.getProperty("orcid.disconnection.allowed-users");
+        if (!OrcidProfileDisconnectionMode.isValid(value)) {
+            return OrcidProfileDisconnectionMode.DISABLED;
+        }
+        return OrcidProfileDisconnectionMode.fromString(value);
+    }
+
+    private void setAccessToken(Context context, Item profile, EPerson ePerson, String accessToken) {
+        OrcidToken orcidToken = orcidTokenService.findByEPerson(context, ePerson);
+        if (orcidToken == null) {
+            orcidTokenService.create(context, ePerson, profile, accessToken);
+        } else {
+            orcidToken.setProfileItem(profile);
+            orcidToken.setAccessToken(accessToken);
+        }
+    }
+
+    private boolean updatePreferenceForSynchronizingWithOrcid(Context context, Item profile,
+                                                              String metadataQualifier,
+                                                              List<String> values) throws SQLException {
+
+        if (!isLinkedToOrcid(context, profile)) {
+            throw new IllegalArgumentException("The given profile cannot be configured for the ORCID "
+                                                   + "synchronization because it is not linked to any ORCID account: "
+                                                   + profile.getID());
+        }
+
+        List<String> oldValues = itemService.getMetadata(profile, "dspace", "orcid", metadataQualifier, ANY).stream()
+                                            .map(metadataValue -> metadataValue.getValue())
+                                            .collect(Collectors.toList());
+
+        if (containsSameValues(oldValues, values)) {
+            return false;
+        }
+
+        itemService.clearMetadata(context, profile, "dspace", "orcid", metadataQualifier, ANY);
+        for (String value : values) {
+            itemService.addMetadata(context, profile, "dspace", "orcid", metadataQualifier, null, value);
+        }
+
+        return true;
+
+    }
+
+    private boolean containsSameValues(List<String> firstList, List<String> secondList) {
+        return new HashSet<>(firstList).equals(new HashSet<>(secondList));
+    }
+
+    private Optional<String> getOrcidAccessToken(Context context, Item item) {
+        return ofNullable(orcidTokenService.findByProfileItem(context, item))
+            .map(orcidToken -> orcidToken.getAccessToken());
+    }
+
+    public Optional<String> getOrcid(Item item) {
+        return getMetadataValue(item, "person.identifier.orcid")
+            .map(metadataValue -> metadataValue.getValue());
+    }
+
+    private Optional<MetadataValue> getMetadataValue(Item item, String metadataField) {
+        return getMetadataValues(item, metadataField).findFirst();
+    }
+
+    private Stream<MetadataValue> getMetadataValues(Item item, String metadataField) {
+        return item.getMetadata().stream()
+                   .filter(metadata -> metadataField.equals(metadata.getMetadataField().toString('.')));
+    }
+
+
+    private void updateItem(Context context, Item item) throws SQLException {
+        try {
+            context.turnOffAuthorisationSystem();
+            itemService.update(context, item);
+        } catch (AuthorizeException e) {
+            throw new RuntimeException(e);
+        } finally {
+            context.restoreAuthSystemState();
+        }
+    }
+
+    private void updateEPerson(Context context, EPerson ePerson) throws SQLException {
+        try {
+            ePersonService.update(context, ePerson);
+        } catch (AuthorizeException e) {
+            throw new RuntimeException(e);
+        }
+    }
+}

dspace-api/src/main/java/org/dspace/app/orcid/service/impl/OrcidTokenServiceImpl.java

@@ -0,0 +1,99 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.orcid.service.impl;
+
+import java.sql.SQLException;
+import java.util.List;
+
+import org.dspace.app.orcid.OrcidToken;
+import org.dspace.app.orcid.dao.OrcidTokenDAO;
+import org.dspace.app.orcid.service.OrcidTokenService;
+import org.dspace.content.Item;
+import org.dspace.core.Context;
+import org.dspace.eperson.EPerson;
+import org.springframework.beans.factory.annotation.Autowired;
+
+/**
+ * Implementation of {@link OrcidTokenService}.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public class OrcidTokenServiceImpl implements OrcidTokenService {
+
+    @Autowired
+    private OrcidTokenDAO orcidTokenDAO;
+
+    @Override
+    public OrcidToken create(Context context, EPerson ePerson, String accessToken) {
+        return create(context, ePerson, null, accessToken);
+    }
+
+    @Override
+    public OrcidToken create(Context context, EPerson ePerson, Item profileItem, String accessToken) {
+        OrcidToken orcidToken = new OrcidToken();
+        orcidToken.setAccessToken(accessToken);
+        orcidToken.setEPerson(ePerson);
+        orcidToken.setProfileItem(profileItem);
+        try {
+            return orcidTokenDAO.create(context, orcidToken);
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public OrcidToken findByEPerson(Context context, EPerson ePerson) {
+        return orcidTokenDAO.findByEPerson(context, ePerson);
+    }
+
+    @Override
+    public OrcidToken findByProfileItem(Context context, Item profileItem) {
+        return orcidTokenDAO.findByProfileItem(context, profileItem);
+    }
+
+    @Override
+    public void delete(Context context, OrcidToken orcidToken) {
+        try {
+            orcidTokenDAO.delete(context, orcidToken);
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public void deleteAll(Context context) {
+        try {
+
+            List<OrcidToken> tokens = orcidTokenDAO.findAll(context, OrcidToken.class);
+            for (OrcidToken token : tokens) {
+                delete(context, token);
+            }
+
+        } catch (SQLException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    @Override
+    public void deleteByEPerson(Context context, EPerson ePerson) {
+        OrcidToken orcidToken = findByEPerson(context, ePerson);
+        if (orcidToken != null) {
+            delete(context, orcidToken);
+        }
+    }
+
+    @Override
+    public void deleteByProfileItem(Context context, Item profileItem) {
+        OrcidToken orcidToken = findByProfileItem(context, profileItem);
+        if (orcidToken != null) {
+            delete(context, orcidToken);
+        }
+    }
+
+}

dspace-api/src/main/java/org/dspace/app/profile/OrcidEntitySyncPreference.java

@@ -0,0 +1,30 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.profile;
+
+/**
+ * Enum that model the allowed values to configure the ORCID synchronization
+ * preferences.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public enum OrcidEntitySyncPreference {
+
+    /**
+     * Preference to be set to disable the synchronization with ORCID of the
+     * specific entity.
+     */
+    DISABLED,
+
+    /**
+     * Preference to be set to enable the synchronization with ORCID of all items
+     * relating to the specific entity.
+     */
+    ALL
+}

dspace-api/src/main/java/org/dspace/app/profile/OrcidMetadataCopyingAction.java

@@ -0,0 +1,97 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.profile;
+
+import static java.time.LocalDateTime.now;
+import static java.time.format.DateTimeFormatter.ISO_DATE_TIME;
+import static org.apache.commons.collections.CollectionUtils.isNotEmpty;
+import static org.dspace.content.Item.ANY;
+
+import java.sql.SQLException;
+import java.util.List;
+import java.util.stream.Collectors;
+
+import org.apache.commons.collections.CollectionUtils;
+import org.dspace.app.orcid.OrcidToken;
+import org.dspace.app.orcid.service.OrcidTokenService;
+import org.dspace.app.profile.service.AfterResearcherProfileCreationAction;
+import org.dspace.content.Item;
+import org.dspace.content.MetadataFieldName;
+import org.dspace.content.MetadataValue;
+import org.dspace.content.service.ItemService;
+import org.dspace.core.Context;
+import org.dspace.eperson.EPerson;
+import org.dspace.eperson.service.EPersonService;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.core.Ordered;
+import org.springframework.core.annotation.Order;
+
+/**
+ * Implementation of {@link AfterResearcherProfileCreationAction} that copy the
+ * ORCID metadata, if any, from the owner to the researcher profile item.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+@Order(Ordered.HIGHEST_PRECEDENCE)
+public class OrcidMetadataCopyingAction implements AfterResearcherProfileCreationAction {
+
+    @Autowired
+    private ItemService itemService;
+
+    @Autowired
+    private EPersonService ePersonService;
+
+    @Autowired
+    private OrcidTokenService orcidTokenService;
+
+    @Override
+    public void perform(Context context, ResearcherProfile researcherProfile, EPerson owner) throws SQLException {
+
+        Item item = researcherProfile.getItem();
+
+        copyMetadataValues(context, owner, "eperson.orcid", item, "person.identifier.orcid");
+        copyMetadataValues(context, owner, "eperson.orcid.scope", item, "dspace.orcid.scope");
+
+        OrcidToken orcidToken = orcidTokenService.findByEPerson(context, owner);
+        if (orcidToken != null) {
+            orcidToken.setProfileItem(item);
+        }
+
+        if (isLinkedToOrcid(owner, orcidToken)) {
+            String currentDate = ISO_DATE_TIME.format(now());
+            itemService.setMetadataSingleValue(context, item, "dspace", "orcid", "authenticated", null, currentDate);
+        }
+
+    }
+
+    private void copyMetadataValues(Context context, EPerson ePerson, String ePersonMetadataField, Item item,
+        String itemMetadataField) throws SQLException {
+
+        List<String> values = getMetadataValues(ePerson, ePersonMetadataField);
+        if (CollectionUtils.isEmpty(values)) {
+            return;
+        }
+
+        MetadataFieldName metadata = new MetadataFieldName(itemMetadataField);
+        itemService.clearMetadata(context, item, metadata.schema, metadata.element, metadata.qualifier, ANY);
+        itemService.addMetadata(context, item, metadata.schema, metadata.element, metadata.qualifier, null, values);
+
+    }
+
+    private boolean isLinkedToOrcid(EPerson ePerson, OrcidToken orcidToken) {
+        return isNotEmpty(getMetadataValues(ePerson, "eperson.orcid")) && orcidToken != null;
+    }
+
+    private List<String> getMetadataValues(EPerson ePerson, String metadataField) {
+        return ePersonService.getMetadataByMetadataString(ePerson, metadataField).stream()
+            .map(MetadataValue::getValue)
+            .collect(Collectors.toList());
+    }
+
+}

dspace-api/src/main/java/org/dspace/app/profile/OrcidProfileDisconnectionMode.java

@@ -0,0 +1,49 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.profile;
+
+import static org.apache.commons.lang3.EnumUtils.isValidEnum;
+
+/**
+ * Enum that models all the available values of the property that which
+ * determines which users can disconnect a profile from an ORCID account.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public enum OrcidProfileDisconnectionMode {
+
+    /**
+     * The disconnection is disabled.
+     */
+    DISABLED,
+
+    /**
+     * Only the profile's owner can disconnect that profile from ORCID.
+     */
+    ONLY_OWNER,
+
+    /**
+     * Only the admins can disconnect profiles from ORCID.
+     */
+    ONLY_ADMIN,
+
+    /**
+     * Only the admin or the profile's owner can disconnect that profile from ORCID.
+     */
+    ADMIN_AND_OWNER;
+
+    public static boolean isValid(String mode) {
+        return mode != null ? isValidEnum(OrcidProfileDisconnectionMode.class, mode.toUpperCase()) : false;
+    }
+
+    public static OrcidProfileDisconnectionMode fromString(String mode) {
+        return isValid(mode) ? OrcidProfileDisconnectionMode.valueOf(mode.toUpperCase()) : null;
+    }
+
+}

dspace-api/src/main/java/org/dspace/app/profile/OrcidProfileSyncPreference.java

@@ -0,0 +1,29 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.profile;
+
+/**
+ * Enum that model the allowed values to configure the ORCID synchronization
+ * preferences for the user's profile.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public enum OrcidProfileSyncPreference {
+
+    /**
+     * Data relating to the name, country and keywords of the ORCID profile.
+     */
+    BIOGRAPHICAL,
+
+    /**
+     * Data relating to external identifiers and researcher urls of the ORCID
+     * profile.
+     */
+    IDENTIFIERS;
+}

dspace-api/src/main/java/org/dspace/app/profile/OrcidSynchronizationMode.java

@@ -0,0 +1,29 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.profile;
+
+/**
+ * Enum that model the allowed values to configure the ORCID synchronization
+ * mode.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public enum OrcidSynchronizationMode {
+
+    /**
+     * Mode in which the user can manually decide when to synchronize data with
+     * ORCID.
+     */
+    MANUAL,
+
+    /**
+     * Mode in which synchronizations with ORCID occur through an automatic process.
+     */
+    BATCH;
+}

dspace-api/src/main/java/org/dspace/app/profile/ResearcherProfile.java

@@ -63,6 +63,11 @@ public class ResearcherProfile {
         return item;
     }
 
+    public Optional<String> getOrcid() {
+        return getMetadataValue(item, "person.identifier.orcid")
+            .map(metadataValue -> metadataValue.getValue());
+    }
+
     private MetadataValue getDspaceObjectOwnerMetadata(Item item) {
         return getMetadataValue(item, "dspace.object.owner")
             .filter(metadata -> UUIDUtils.fromString(metadata.getAuthority()) != null)

dspace-api/src/main/java/org/dspace/app/profile/ResearcherProfileServiceImpl.java

@@ -18,14 +18,18 @@ import static org.dspace.eperson.Group.ANONYMOUS;
 import java.io.IOException;
 import java.net.URI;
 import java.sql.SQLException;
+import java.util.Collections;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Optional;
 import java.util.UUID;
+import javax.annotation.PostConstruct;
 
 import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.lang.StringUtils;
 import org.dspace.app.exception.ResourceAlreadyExistsException;
+import org.dspace.app.orcid.service.OrcidSynchronizationService;
+import org.dspace.app.profile.service.AfterResearcherProfileCreationAction;
 import org.dspace.app.profile.service.ResearcherProfileService;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.authorize.service.AuthorizeService;
@@ -88,6 +92,21 @@ public class ResearcherProfileServiceImpl implements ResearcherProfileService {
     @Autowired
     private AuthorizeService authorizeService;
 
+    @Autowired
+    private OrcidSynchronizationService orcidSynchronizationService;
+
+    @Autowired(required = false)
+    private List<AfterResearcherProfileCreationAction> afterCreationActions;
+
+    @PostConstruct
+    public void postConstruct() {
+
+        if (afterCreationActions == null) {
+            afterCreationActions = Collections.emptyList();
+        }
+
+    }
+
     @Override
     public ResearcherProfile findById(Context context, UUID id) throws SQLException, AuthorizeException {
         Assert.notNull(id, "An id must be provided to find a researcher profile");
@@ -113,15 +132,16 @@ public class ResearcherProfileServiceImpl implements ResearcherProfileService {
             .orElseThrow(() -> new IllegalStateException("No collection found for researcher profiles"));
 
         context.turnOffAuthorisationSystem();
-        try {
-
         Item item = createProfileItem(context, ePerson, collection);
-            return new ResearcherProfile(item);
-
-        } finally {
         context.restoreAuthSystemState();
+
+        ResearcherProfile researcherProfile = new ResearcherProfile(item);
+
+        for (AfterResearcherProfileCreationAction afterCreationAction : afterCreationActions) {
+            afterCreationAction.perform(context, researcherProfile, ePerson);
         }
 
+        return researcherProfile;
     }
 
     @Override
@@ -137,6 +157,7 @@ public class ResearcherProfileServiceImpl implements ResearcherProfileService {
             deleteItem(context, profileItem);
         } else {
             removeOwnerMetadata(context, profileItem);
+            orcidSynchronizationService.unlinkProfile(context, profileItem);
         }
 
     }

dspace-api/src/main/java/org/dspace/app/profile/service/AfterResearcherProfileCreationAction.java

@@ -0,0 +1,35 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.profile.service;
+
+import java.sql.SQLException;
+
+import org.dspace.app.profile.ResearcherProfile;
+import org.dspace.core.Context;
+import org.dspace.eperson.EPerson;
+
+/**
+ * Interface to mark classes that allow to perform additional logic on created
+ * researcher profile.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public interface AfterResearcherProfileCreationAction {
+
+    /**
+     * Perform some actions on the given researcher profile and returns the updated
+     * profile.
+     *
+     * @param  context           the DSpace context
+     * @param  researcherProfile the created researcher profile
+     * @param  owner             the EPerson that is owner of the given profile
+     * @throws SQLException      if a SQL error occurs
+     */
+    void perform(Context context, ResearcherProfile researcherProfile, EPerson owner) throws SQLException;
+}

dspace-api/src/main/java/org/dspace/app/solrdatabaseresync/SolrDatabaseResyncCli.java

@@ -0,0 +1,175 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.solrdatabaseresync;
+
+import static org.dspace.discovery.indexobject.ItemIndexFactoryImpl.STATUS_FIELD;
+import static org.dspace.discovery.indexobject.ItemIndexFactoryImpl.STATUS_FIELD_PREDB;
+
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.Calendar;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.Optional;
+
+import org.apache.commons.cli.ParseException;
+import org.apache.logging.log4j.Logger;
+import org.apache.solr.client.solrj.SolrQuery;
+import org.apache.solr.client.solrj.SolrServerException;
+import org.apache.solr.client.solrj.response.QueryResponse;
+import org.apache.solr.common.SolrDocument;
+import org.dspace.core.Context;
+import org.dspace.discovery.IndexableObject;
+import org.dspace.discovery.IndexingService;
+import org.dspace.discovery.SearchServiceException;
+import org.dspace.discovery.SearchUtils;
+import org.dspace.discovery.SolrSearchCore;
+import org.dspace.discovery.indexobject.IndexableItem;
+import org.dspace.discovery.indexobject.factory.IndexObjectFactoryFactory;
+import org.dspace.scripts.DSpaceRunnable;
+import org.dspace.services.ConfigurationService;
+import org.dspace.services.factory.DSpaceServicesFactory;
+import org.dspace.util.SolrUtils;
+import org.dspace.utils.DSpace;
+
+/**
+ * {@link DSpaceRunnable} implementation to update solr items with "predb" status to either:
+ * - Delete them from solr if they're not present in the database
+ * - Remove their status if they're present in the database
+ */
+public class SolrDatabaseResyncCli extends DSpaceRunnable<SolrDatabaseResyncCliScriptConfiguration> {
+    /* Log4j logger */
+    private static final Logger log = org.apache.logging.log4j.LogManager.getLogger(SolrDatabaseResyncCli.class);
+
+    public static final String TIME_UNTIL_REINDEX_PROPERTY = "solr-database-resync.time-until-reindex";
+
+    private IndexingService indexingService;
+    private SolrSearchCore solrSearchCore;
+    private IndexObjectFactoryFactory indexObjectServiceFactory;
+    private ConfigurationService configurationService;
+
+    private int timeUntilReindex = 0;
+    private String maxTime;
+
+    @Override
+    public SolrDatabaseResyncCliScriptConfiguration getScriptConfiguration() {
+        return new DSpace().getServiceManager()
+                .getServiceByName("solr-database-resync", SolrDatabaseResyncCliScriptConfiguration.class);
+    }
+
+    public static void runScheduled() throws Exception {
+        SolrDatabaseResyncCli script = new SolrDatabaseResyncCli();
+        script.setup();
+        script.internalRun();
+    }
+
+    @Override
+    public void setup() throws ParseException {
+        indexingService = DSpaceServicesFactory.getInstance().getServiceManager()
+                            .getServiceByName(IndexingService.class.getName(), IndexingService.class);
+        solrSearchCore = DSpaceServicesFactory.getInstance().getServiceManager()
+                            .getServicesByType(SolrSearchCore.class).get(0);
+        indexObjectServiceFactory = IndexObjectFactoryFactory.getInstance();
+        configurationService = DSpaceServicesFactory.getInstance().getConfigurationService();
+    }
+
+    @Override
+    public void internalRun() throws Exception {
+        logInfoAndOut("Starting Item resync of Solr and Database...");
+
+        timeUntilReindex = getTimeUntilReindex();
+        maxTime = getMaxTime();
+
+        Context context = new Context();
+
+        try {
+            context.turnOffAuthorisationSystem();
+            performStatusUpdate(context);
+        } finally {
+            context.restoreAuthSystemState();
+            context.complete();
+        }
+    }
+
+    private void performStatusUpdate(Context context) throws SearchServiceException, SolrServerException, IOException {
+        SolrQuery solrQuery = new SolrQuery();
+        solrQuery.setQuery(STATUS_FIELD + ":" + STATUS_FIELD_PREDB);
+        solrQuery.addFilterQuery(SearchUtils.RESOURCE_TYPE_FIELD + ":" + IndexableItem.TYPE);
+        String dateRangeFilter = SearchUtils.LAST_INDEXED_FIELD + ":[* TO " + maxTime + "]";
+        logDebugAndOut("Date range filter used; " + dateRangeFilter);
+        solrQuery.addFilterQuery(dateRangeFilter);
+        solrQuery.addField(SearchUtils.RESOURCE_ID_FIELD);
+        solrQuery.addField(SearchUtils.RESOURCE_UNIQUE_ID);
+        QueryResponse response = solrSearchCore.getSolr().query(solrQuery, solrSearchCore.REQUEST_METHOD);
+
+        if (response != null) {
+            logInfoAndOut(response.getResults().size() + " items found to process");
+
+            for (SolrDocument doc : response.getResults()) {
+                String uuid = (String) doc.getFirstValue(SearchUtils.RESOURCE_ID_FIELD);
+                String uniqueId = (String) doc.getFirstValue(SearchUtils.RESOURCE_UNIQUE_ID);
+                logDebugAndOut("Processing item with UUID: " + uuid);
+
+                Optional<IndexableObject> indexableObject = Optional.empty();
+                try {
+                    indexableObject = indexObjectServiceFactory
+                            .getIndexableObjectFactory(uniqueId).findIndexableObject(context, uuid);
+                } catch (SQLException e) {
+                    log.warn("An exception occurred when attempting to retrieve item with UUID \"" + uuid +
+                            "\" from the database, removing related solr document", e);
+                }
+
+                try {
+                    if (indexableObject.isPresent()) {
+                        logDebugAndOut("Item exists in DB, updating solr document");
+                        updateItem(context, indexableObject.get());
+                    } else {
+                        logDebugAndOut("Item doesn't exist in DB, removing solr document");
+                        removeItem(context, uniqueId);
+                    }
+                } catch (SQLException | IOException e) {
+                    log.error(e.getMessage(), e);
+                }
+            }
+        }
+
+        indexingService.commit();
+    }
+
+    private void updateItem(Context context, IndexableObject indexableObject) throws SolrServerException, IOException {
+        Map<String,Object> fieldModifier = new HashMap<>(1);
+        fieldModifier.put("remove", STATUS_FIELD_PREDB);
+        indexingService.atomicUpdate(context, indexableObject.getUniqueIndexID(), STATUS_FIELD, fieldModifier);
+    }
+
+    private void removeItem(Context context, String uniqueId) throws IOException, SQLException {
+        indexingService.unIndexContent(context, uniqueId);
+    }
+
+    private String getMaxTime() {
+        Calendar cal = Calendar.getInstance();
+        if (timeUntilReindex > 0) {
+            cal.add(Calendar.MILLISECOND, -timeUntilReindex);
+        }
+        return SolrUtils.getDateFormatter().format(cal.getTime());
+    }
+
+    private int getTimeUntilReindex() {
+        return configurationService.getIntProperty(TIME_UNTIL_REINDEX_PROPERTY, 0);
+    }
+
+    private void logInfoAndOut(String message) {
+        log.info(message);
+        System.out.println(message);
+    }
+
+    private void logDebugAndOut(String message) {
+        log.debug(message);
+        System.out.println(message);
+    }
+}

dspace-api/src/main/java/org/dspace/app/solrdatabaseresync/SolrDatabaseResyncCliScriptConfiguration.java

@@ -0,0 +1,42 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.solrdatabaseresync;
+
+import org.apache.commons.cli.Options;
+import org.dspace.core.Context;
+import org.dspace.scripts.configuration.ScriptConfiguration;
+
+/**
+ * The {@link ScriptConfiguration} for the {@link SolrDatabaseResyncCli} script.
+ */
+public class SolrDatabaseResyncCliScriptConfiguration extends ScriptConfiguration<SolrDatabaseResyncCli> {
+    private Class<SolrDatabaseResyncCli> dspaceRunnableClass;
+
+    @Override
+    public Class<SolrDatabaseResyncCli> getDspaceRunnableClass() {
+        return dspaceRunnableClass;
+    }
+
+    @Override
+    public void setDspaceRunnableClass(Class<SolrDatabaseResyncCli> dspaceRunnableClass) {
+        this.dspaceRunnableClass = dspaceRunnableClass;
+    }
+
+    @Override
+    public boolean isAllowedToExecute(Context context) {
+        return true;
+    }
+
+    @Override
+    public Options getOptions() {
+        if (options == null) {
+            options = new Options();
+        }
+        return options;
+    }
+}

dspace-api/src/main/java/org/dspace/authenticate/OrcidAuthentication.java

@@ -0,0 +1,104 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.authenticate;
+
+import java.sql.SQLException;
+import java.util.Iterator;
+import java.util.List;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.dspace.authenticate.factory.AuthenticateServiceFactory;
+import org.dspace.core.Context;
+import org.dspace.eperson.EPerson;
+import org.dspace.eperson.Group;
+import org.dspace.kernel.ServiceManager;
+import org.dspace.utils.DSpace;
+
+/**
+ * Implementation of {@link AuthenticationMethod} that delegate all the method
+ * invocations to the bean of class {@link OrcidAuthenticationBean}.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public class OrcidAuthentication implements AuthenticationMethod {
+
+    private final ServiceManager serviceManager = new DSpace().getServiceManager();
+
+    /**
+     * Check if OrcidAuthentication plugin is enabled
+     * @return true if enabled, false otherwise
+     */
+    public static boolean isEnabled() {
+
+        String pluginName = new OrcidAuthentication().getName();
+
+        Iterator<AuthenticationMethod> authenticationMethodIterator = AuthenticateServiceFactory.getInstance()
+            .getAuthenticationService().authenticationMethodIterator();
+
+        while (authenticationMethodIterator.hasNext()) {
+            if (pluginName.equals(authenticationMethodIterator.next().getName())) {
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+    @Override
+    public boolean canSelfRegister(Context context, HttpServletRequest request, String username) throws SQLException {
+        return getOrcidAuthentication().canSelfRegister(context, request, username);
+    }
+
+    @Override
+    public void initEPerson(Context context, HttpServletRequest request, EPerson eperson) throws SQLException {
+        getOrcidAuthentication().initEPerson(context, request, eperson);
+    }
+
+    @Override
+    public boolean allowSetPassword(Context context, HttpServletRequest request, String username) throws SQLException {
+        return getOrcidAuthentication().allowSetPassword(context, request, username);
+    }
+
+    @Override
+    public boolean isImplicit() {
+        return getOrcidAuthentication().isImplicit();
+    }
+
+    @Override
+    public List<Group> getSpecialGroups(Context context, HttpServletRequest request) throws SQLException {
+        return getOrcidAuthentication().getSpecialGroups(context, request);
+    }
+
+    @Override
+    public int authenticate(Context context, String username, String password, String realm, HttpServletRequest request)
+        throws SQLException {
+        return getOrcidAuthentication().authenticate(context, username, password, realm, request);
+    }
+
+    @Override
+    public String loginPageURL(Context context, HttpServletRequest request, HttpServletResponse response) {
+        return getOrcidAuthentication().loginPageURL(context, request, response);
+    }
+
+    @Override
+    public String getName() {
+        return getOrcidAuthentication().getName();
+    }
+
+    private OrcidAuthenticationBean getOrcidAuthentication() {
+        return serviceManager.getServiceByName("orcidAuthentication", OrcidAuthenticationBean.class);
+    }
+
+    @Override
+    public boolean isUsed(Context context, HttpServletRequest request) {
+        return getOrcidAuthentication().isUsed(context, request);
+    }
+
+}

dspace-api/src/main/java/org/dspace/authenticate/OrcidAuthenticationBean.java

@@ -0,0 +1,330 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.authenticate;
+
+import static java.lang.String.format;
+import static java.net.URLEncoder.encode;
+import static org.apache.commons.lang.BooleanUtils.toBoolean;
+import static org.apache.commons.lang3.StringUtils.isBlank;
+import static org.dspace.content.Item.ANY;
+
+import java.io.UnsupportedEncodingException;
+import java.sql.SQLException;
+import java.util.Collections;
+import java.util.List;
+import java.util.Optional;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.commons.collections4.CollectionUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.dspace.app.orcid.OrcidToken;
+import org.dspace.app.orcid.client.OrcidClient;
+import org.dspace.app.orcid.client.OrcidConfiguration;
+import org.dspace.app.orcid.model.OrcidTokenResponseDTO;
+import org.dspace.app.orcid.service.OrcidSynchronizationService;
+import org.dspace.app.orcid.service.OrcidTokenService;
+import org.dspace.app.profile.ResearcherProfile;
+import org.dspace.app.profile.service.ResearcherProfileService;
+import org.dspace.authorize.AuthorizeException;
+import org.dspace.core.Context;
+import org.dspace.eperson.EPerson;
+import org.dspace.eperson.Group;
+import org.dspace.eperson.service.EPersonService;
+import org.dspace.services.ConfigurationService;
+import org.orcid.jaxb.model.v3.release.record.Email;
+import org.orcid.jaxb.model.v3.release.record.Person;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+
+/**
+ * ORCID authentication for DSpace.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public class OrcidAuthenticationBean implements AuthenticationMethod {
+
+    public static final String ORCID_AUTH_ATTRIBUTE = "orcid-authentication";
+
+    private final static Logger LOGGER = LoggerFactory.getLogger(OrcidAuthenticationBean.class);
+
+    private final static String LOGIN_PAGE_URL_FORMAT = "%s?client_id=%s&response_type=code&scope=%s&redirect_uri=%s";
+
+    @Autowired
+    private OrcidClient orcidClient;
+
+    @Autowired
+    private OrcidConfiguration orcidConfiguration;
+
+    @Autowired
+    private ConfigurationService configurationService;
+
+    @Autowired
+    private EPersonService ePersonService;
+
+    @Autowired
+    private ResearcherProfileService researcherProfileService;
+
+    @Autowired
+    private OrcidSynchronizationService orcidSynchronizationService;
+
+    @Autowired
+    private OrcidTokenService orcidTokenService;
+
+    @Override
+    public int authenticate(Context context, String username, String password, String realm, HttpServletRequest request)
+        throws SQLException {
+
+        if (request == null) {
+            LOGGER.warn("Unable to authenticate using ORCID because the request object is null.");
+            return BAD_ARGS;
+        }
+
+        String code = (String) request.getParameter("code");
+        if (StringUtils.isEmpty(code)) {
+            LOGGER.warn("The incoming request has not code parameter");
+            return NO_SUCH_USER;
+        }
+        request.setAttribute(ORCID_AUTH_ATTRIBUTE, true);
+        return authenticateWithOrcid(context, code, request);
+    }
+
+    @Override
+    public String loginPageURL(Context context, HttpServletRequest request, HttpServletResponse response) {
+
+        String authorizeUrl = orcidConfiguration.getAuthorizeEndpointUrl();
+        String clientId = orcidConfiguration.getClientId();
+        String redirectUri = orcidConfiguration.getRedirectUrl();
+        String scopes = String.join("+", orcidConfiguration.getScopes());
+
+        if (StringUtils.isAnyBlank(authorizeUrl, clientId, redirectUri, scopes)) {
+            LOGGER.error("Missing mandatory configuration properties for OrcidAuthentication");
+            return "";
+        }
+
+        try {
+            return format(LOGIN_PAGE_URL_FORMAT, authorizeUrl, clientId, scopes, encode(redirectUri, "UTF-8"));
+        } catch (UnsupportedEncodingException e) {
+            LOGGER.error(e.getMessage(), e);
+            return "";
+        }
+
+    }
+
+    @Override
+    public boolean isUsed(Context context, HttpServletRequest request) {
+        return request.getAttribute(ORCID_AUTH_ATTRIBUTE) != null;
+    }
+
+    @Override
+    public boolean canSelfRegister(Context context, HttpServletRequest request, String username) throws SQLException {
+        return canSelfRegister();
+    }
+
+    @Override
+    public void initEPerson(Context context, HttpServletRequest request, EPerson eperson) throws SQLException {
+
+    }
+
+    @Override
+    public boolean allowSetPassword(Context context, HttpServletRequest request, String username) throws SQLException {
+        return false;
+    }
+
+    @Override
+    public boolean isImplicit() {
+        return false;
+    }
+
+    @Override
+    public List<Group> getSpecialGroups(Context context, HttpServletRequest request) throws SQLException {
+        return Collections.emptyList();
+    }
+
+    @Override
+    public String getName() {
+        return "orcid";
+    }
+
+    private int authenticateWithOrcid(Context context, String code, HttpServletRequest request) throws SQLException {
+        OrcidTokenResponseDTO token = getOrcidAccessToken(code);
+        if (token == null) {
+            return NO_SUCH_USER;
+        }
+
+        String orcid = token.getOrcid();
+
+        EPerson ePerson = ePersonService.findByNetid(context, orcid);
+        if (ePerson != null) {
+            return ePerson.canLogIn() ? logInEPerson(context, token, ePerson) : BAD_ARGS;
+        }
+
+        Person person = getPersonFromOrcid(token);
+        if (person == null) {
+            return NO_SUCH_USER;
+        }
+
+        String email = getEmail(person).orElse(null);
+
+        ePerson = ePersonService.findByEmail(context, email);
+        if (ePerson != null) {
+            return ePerson.canLogIn() ? logInEPerson(context, token, ePerson) : BAD_ARGS;
+        }
+
+        return canSelfRegister() ? registerNewEPerson(context, person, token) : NO_SUCH_USER;
+
+    }
+
+    private int logInEPerson(Context context, OrcidTokenResponseDTO token, EPerson ePerson)
+        throws SQLException {
+
+        context.setCurrentUser(ePerson);
+
+        setOrcidMetadataOnEPerson(context, ePerson, token);
+
+        ResearcherProfile profile = findProfile(context, ePerson);
+        if (profile != null) {
+            orcidSynchronizationService.linkProfile(context, profile.getItem(), token);
+        }
+
+        return SUCCESS;
+
+    }
+
+    private ResearcherProfile findProfile(Context context, EPerson ePerson) throws SQLException {
+        try {
+            return researcherProfileService.findById(context, ePerson.getID());
+        } catch (AuthorizeException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private int registerNewEPerson(Context context, Person person, OrcidTokenResponseDTO token) throws SQLException {
+
+        try {
+            context.turnOffAuthorisationSystem();
+
+            String email = getEmail(person)
+                .orElseThrow(() -> new IllegalStateException("The email is configured private on orcid"));
+
+            String orcid = token.getOrcid();
+
+            EPerson eperson = ePersonService.create(context);
+
+            eperson.setNetid(orcid);
+
+            eperson.setEmail(email);
+
+            Optional<String> firstName = getFirstName(person);
+            if (firstName.isPresent()) {
+                eperson.setFirstName(context, firstName.get());
+            }
+
+            Optional<String> lastName = getLastName(person);
+            if (lastName.isPresent()) {
+                eperson.setLastName(context, lastName.get());
+            }
+            eperson.setCanLogIn(true);
+            eperson.setSelfRegistered(true);
+
+            setOrcidMetadataOnEPerson(context, eperson, token);
+
+            ePersonService.update(context, eperson);
+            context.setCurrentUser(eperson);
+            context.dispatchEvents();
+
+            return SUCCESS;
+
+        } catch (Exception ex) {
+            LOGGER.error("An error occurs registering a new EPerson from ORCID", ex);
+            context.rollback();
+            return NO_SUCH_USER;
+        } finally {
+            context.restoreAuthSystemState();
+        }
+    }
+
+    private void setOrcidMetadataOnEPerson(Context context, EPerson person, OrcidTokenResponseDTO token)
+        throws SQLException {
+
+        String orcid = token.getOrcid();
+        String accessToken = token.getAccessToken();
+        String[] scopes = token.getScopeAsArray();
+
+        ePersonService.setMetadataSingleValue(context, person, "eperson", "orcid", null, null, orcid);
+        ePersonService.clearMetadata(context, person, "eperson", "orcid", "scope", ANY);
+        for (String scope : scopes) {
+            ePersonService.addMetadata(context, person, "eperson", "orcid", "scope", null, scope);
+        }
+
+        OrcidToken orcidToken = orcidTokenService.findByEPerson(context, person);
+        if (orcidToken == null) {
+            orcidTokenService.create(context, person, accessToken);
+        } else {
+            orcidToken.setAccessToken(accessToken);
+        }
+
+    }
+
+    private Person getPersonFromOrcid(OrcidTokenResponseDTO token) {
+        try {
+            return orcidClient.getPerson(token.getAccessToken(), token.getOrcid());
+        } catch (Exception ex) {
+            LOGGER.error("An error occurs retriving the ORCID record with id " + token.getOrcid(), ex);
+            return null;
+        }
+    }
+
+    private Optional<String> getEmail(Person person) {
+        List<Email> emails = person.getEmails() != null ? person.getEmails().getEmails() : Collections.emptyList();
+        if (CollectionUtils.isEmpty(emails)) {
+            return Optional.empty();
+        }
+        return Optional.ofNullable(emails.get(0).getEmail());
+    }
+
+    private Optional<String> getFirstName(Person person) {
+        return Optional.ofNullable(person.getName())
+            .map(name -> name.getGivenNames())
+            .map(givenNames -> givenNames.getContent());
+    }
+
+    private Optional<String> getLastName(Person person) {
+        return Optional.ofNullable(person.getName())
+            .map(name -> name.getFamilyName())
+            .map(givenNames -> givenNames.getContent());
+    }
+
+    private boolean canSelfRegister() {
+        String canSelfRegister = configurationService.getProperty("authentication-orcid.can-self-register", "true");
+        if (isBlank(canSelfRegister)) {
+            return true;
+        }
+        return toBoolean(canSelfRegister);
+    }
+
+    private OrcidTokenResponseDTO getOrcidAccessToken(String code) {
+        try {
+            return orcidClient.getAccessToken(code);
+        } catch (Exception ex) {
+            LOGGER.error("An error occurs retriving the ORCID access_token", ex);
+            return null;
+        }
+    }
+
+    public OrcidClient getOrcidClient() {
+        return orcidClient;
+    }
+
+    public void setOrcidClient(OrcidClient orcidClient) {
+        this.orcidClient = orcidClient;
+    }
+
+}

dspace-api/src/main/java/org/dspace/content/BundleServiceImpl.java

@@ -158,6 +158,11 @@ public class BundleServiceImpl extends DSpaceObjectServiceImpl<Bundle> implement
         }
 
         bundle.addBitstream(bitstream);
+        // If a bitstream is moved from one bundle to another it may be temporarily flagged as deleted
+        // (when removed from the original bundle)
+        if (bitstream.isDeleted()) {
+            bitstream.setDeleted(false);
+        }
         bitstream.getBundles().add(bundle);
 
 

dspace-api/src/main/java/org/dspace/content/ItemServiceImpl.java

@@ -26,6 +26,8 @@ import java.util.stream.Stream;
 import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.logging.log4j.Logger;
+import org.dspace.app.orcid.OrcidToken;
+import org.dspace.app.orcid.service.OrcidTokenService;
 import org.dspace.app.util.AuthorizeUtil;
 import org.dspace.authorize.AuthorizeConfiguration;
 import org.dspace.authorize.AuthorizeException;
@@ -124,6 +126,9 @@ public class ItemServiceImpl extends DSpaceObjectServiceImpl<Item> implements It
     @Autowired(required = true)
     private EntityTypeService entityTypeService;
 
+    @Autowired
+    private OrcidTokenService orcidTokenService;
+
     protected ItemServiceImpl() {
         super();
     }
@@ -752,6 +757,11 @@ public class ItemServiceImpl extends DSpaceObjectServiceImpl<Item> implements It
             harvestedItemService.delete(context, hi);
         }
 
+        OrcidToken orcidToken = orcidTokenService.findByProfileItem(context, item);
+        if (orcidToken != null) {
+            orcidToken.setProfileItem(null);
+        }
+
         //Only clear collections after we have removed everything else from the item
         item.clearCollections();
         item.setOwningCollection(null);

dspace-api/src/main/java/org/dspace/core/Context.java

@@ -538,6 +538,36 @@ public class Context implements AutoCloseable {
         }
     }
 
+    /**
+     * Rollback the current transaction with the database, without persisting any
+     * pending changes. The database connection is not closed and can be reused
+     * afterwards.
+     *
+     * <b>WARNING: After calling this method all previously fetched entities are
+     * "detached" (pending changes are not tracked anymore). You have to reload all
+     * entities you still want to work with manually after this method call (see
+     * {@link Context#reloadEntity(ReloadableEntity)}).</b>
+     *
+     * @throws SQLException When rollbacking the transaction in the database fails.
+     */
+    public void rollback() throws SQLException {
+        // If Context is no longer open/valid, just note that it has already been closed
+        if (!isValid()) {
+            log.info("rollback() was called on a closed Context object. No changes to abort.");
+            return;
+        }
+
+        try {
+            // Rollback ONLY if we have a database transaction, and it is NOT Read Only
+            if (!isReadOnly() && isTransactionAlive()) {
+                dbConnection.rollback();
+                reloadContextBoundEntities();
+            }
+        } finally {
+            events = null;
+        }
+    }
+
     /**
      * Close the context, without committing any of the changes performed using
      * this context. The database connection is freed. No exception is thrown if

dspace-api/src/main/java/org/dspace/curate/Curation.java

@@ -259,12 +259,19 @@ public class Curation extends DSpaceRunnable<CurationScriptConfiguration> {
                 super.handler.logError("EPerson not found: " + currentUserUuid);
                 throw new IllegalArgumentException("Unable to find a user with uuid: " + currentUserUuid);
             }
+            assignSpecialGroupsInContext();
             this.context.setCurrentUser(eperson);
         } catch (SQLException e) {
             handler.handleException("Something went wrong trying to fetch eperson for uuid: " + currentUserUuid, e);
         }
     }
 
+    protected void assignSpecialGroupsInContext() throws SQLException {
+        for (UUID uuid : handler.getSpecialGroups()) {
+            context.setSpecialGroup(uuid);
+        }
+    }
+
     /**
      * Fills in some optional command line options.
      * Checks if there are missing required options or invalid values for options.

dspace-api/src/main/java/org/dspace/discovery/IndexEventConsumer.java

@@ -7,6 +7,7 @@
  */
 package org.dspace.discovery;
 
+import java.sql.SQLException;
 import java.util.HashSet;
 import java.util.Optional;
 import java.util.Set;
@@ -37,6 +38,8 @@ public class IndexEventConsumer implements Consumer {
 
     // collect Items, Collections, Communities that need indexing
     private Set<IndexableObject> objectsToUpdate = new HashSet<>();
+    // collect freshly created Items that need indexing (requires pre-db status)
+    private Set<IndexableObject> createdItemsToUpdate = new HashSet<>();
 
     // unique search IDs to delete
     private Set<String> uniqueIdsToDelete = new HashSet<>();
@@ -65,6 +68,7 @@ public class IndexEventConsumer implements Consumer {
         if (objectsToUpdate == null) {
             objectsToUpdate = new HashSet<>();
             uniqueIdsToDelete = new HashSet<>();
+            createdItemsToUpdate = new HashSet<>();
         }
 
         int st = event.getSubjectType();
@@ -143,6 +147,7 @@ public class IndexEventConsumer implements Consumer {
                         String detail = indexableObjectService.getType() + "-" + event.getSubjectID().toString();
                         uniqueIdsToDelete.add(detail);
                     }
+
                     objectsToUpdate.addAll(indexObjectServiceFactory.getIndexableObjects(ctx, subject));
                 }
                 break;
@@ -162,7 +167,7 @@ public class IndexEventConsumer implements Consumer {
                     // also update the object in order to index mapped/unmapped Items
                     if (subject != null &&
                         subject.getType() == Constants.COLLECTION && object.getType() == Constants.ITEM) {
-                        objectsToUpdate.addAll(indexObjectServiceFactory.getIndexableObjects(ctx, object));
+                        createdItemsToUpdate.addAll(indexObjectServiceFactory.getIndexableObjects(ctx, object));
                     }
                 }
                 break;
@@ -209,23 +214,11 @@ public class IndexEventConsumer implements Consumer {
             }
             // update the changed Items not deleted because they were on create list
             for (IndexableObject iu : objectsToUpdate) {
-                /* we let all types through here and
-                 * allow the search indexer to make
-                 * decisions on indexing and/or removal
-                 */
-                iu.setIndexedObject(ctx.reloadEntity(iu.getIndexedObject()));
-                String uniqueIndexID = iu.getUniqueIndexID();
-                if (uniqueIndexID != null) {
-                    try {
-                        indexer.indexContent(ctx, iu, true, false);
-                        log.debug("Indexed "
-                                + iu.getTypeText()
-                                + ", id=" + iu.getID()
-                                + ", unique_id=" + uniqueIndexID);
-                    } catch (Exception e) {
-                        log.error("Failed while indexing object: ", e);
-                    }
+                indexObject(ctx, iu, false);
             }
+            // update the created Items with a pre-db status
+            for (IndexableObject iu : createdItemsToUpdate) {
+                indexObject(ctx, iu, true);
             }
         } finally {
             if (!objectsToUpdate.isEmpty() || !uniqueIdsToDelete.isEmpty()) {
@@ -235,6 +228,27 @@ public class IndexEventConsumer implements Consumer {
                 // "free" the resources
                 objectsToUpdate.clear();
                 uniqueIdsToDelete.clear();
+                createdItemsToUpdate.clear();
+            }
+        }
+    }
+
+    private void indexObject(Context ctx, IndexableObject iu, boolean preDb) throws SQLException {
+        /* we let all types through here and
+         * allow the search indexer to make
+         * decisions on indexing and/or removal
+         */
+        iu.setIndexedObject(ctx.reloadEntity(iu.getIndexedObject()));
+        String uniqueIndexID = iu.getUniqueIndexID();
+        if (uniqueIndexID != null) {
+            try {
+                indexer.indexContent(ctx, iu, true, false, preDb);
+                log.debug("Indexed "
+                        + iu.getTypeText()
+                        + ", id=" + iu.getID()
+                        + ", unique_id=" + uniqueIndexID);
+            } catch (Exception e) {
+                log.error("Failed while indexing object: ", e);
             }
         }
     }

dspace-api/src/main/java/org/dspace/discovery/IndexingService.java

@@ -9,7 +9,9 @@ package org.dspace.discovery;
 
 import java.io.IOException;
 import java.sql.SQLException;
+import java.util.Map;
 
+import org.apache.solr.client.solrj.SolrServerException;
 import org.dspace.core.Context;
 
 /**
@@ -30,6 +32,17 @@ public interface IndexingService {
     void indexContent(Context context, IndexableObject dso,
                       boolean force, boolean commit) throws SQLException, SearchServiceException;
 
+    /**
+     * Index a given DSO
+     * @param context   The DSpace Context
+     * @param dso       The DSpace Object to index
+     * @param force     Force update even if not stale
+     * @param commit    Commit the changes
+     * @param preDb     Add a "preDB" status to the index (only applicable to Items)
+     */
+    void indexContent(Context context, IndexableObject dso,
+                      boolean force, boolean commit, boolean preDb) throws SQLException, SearchServiceException;
+
     void unIndexContent(Context context, IndexableObject dso)
         throws SQLException, IOException;
 
@@ -62,4 +75,15 @@ public interface IndexingService {
     void optimize() throws SearchServiceException;
 
     void buildSpellCheck() throws SearchServiceException, IOException;
+
+    /**
+     * Atomically update the index of a single field for an object
+     * @param context       The DSpace context
+     * @param uniqueIndexId The unqiue index ID of the object to update the index for
+     * @param field         The field to update
+     * @param fieldModifier The modifiers for the field to update. More information on how to atomically update a solr
+     *                      field using a field modifier can be found here: https://yonik.com/solr/atomic-updates/
+     */
+    void atomicUpdate(Context context, String uniqueIndexId, String field, Map<String,Object> fieldModifier)
+            throws SolrServerException, IOException;
 }

dspace-api/src/main/java/org/dspace/discovery/SearchService.java

@@ -8,6 +8,7 @@
 package org.dspace.discovery;
 
 import java.sql.SQLException;
+import java.util.Iterator;
 import java.util.List;
 
 import org.dspace.content.Item;
@@ -38,6 +39,7 @@ public interface SearchService {
     DiscoverResult search(Context context, DiscoverQuery query)
         throws SearchServiceException;
 
+
     /**
      * Convenient method to call @see #search(Context, DSpaceObject,
      * DiscoverQuery, boolean) with includeWithdrawn=false
@@ -52,6 +54,19 @@ public interface SearchService {
     DiscoverResult search(Context context, IndexableObject dso, DiscoverQuery query)
         throws SearchServiceException;
 
+    /**
+     * Convenience method to call @see #search(Context, DSpaceObject, DiscoverQuery) and getting an iterator for the
+     * results
+     *
+     * @param context   DSpace context object
+     * @param dso       a DSpace object to use as a scope of the search
+     * @param query     the discovery query object
+     * @return          an iterator iterating over all results from the search
+     * @throws SearchServiceException   if search error
+     */
+    Iterator<Item> iteratorSearch(Context context, IndexableObject dso, DiscoverQuery query)
+        throws SearchServiceException;
+
 
     List<IndexableObject> search(Context context, String query, String orderfield, boolean ascending, int offset,
                                  int max, String... filterquery);

dspace-api/src/main/java/org/dspace/discovery/SearchUtils.java

@@ -20,6 +20,7 @@ import org.dspace.content.Item;
 import org.dspace.content.WorkspaceItem;
 import org.dspace.discovery.configuration.DiscoveryConfiguration;
 import org.dspace.discovery.configuration.DiscoveryConfigurationService;
+import org.dspace.discovery.utils.DiscoverQueryBuilder;
 import org.dspace.kernel.ServiceManager;
 import org.dspace.services.factory.DSpaceServicesFactory;
 import org.dspace.workflow.WorkflowItem;
@@ -170,4 +171,10 @@ public class SearchUtils {
         DiscoveryConfiguration configurationExtra = getDiscoveryConfigurationByName(confName);
         result.add(configurationExtra);
     }
+
+    public static DiscoverQueryBuilder getQueryBuilder() {
+        ServiceManager manager = DSpaceServicesFactory.getInstance().getServiceManager();
+        return manager
+            .getServiceByName(DiscoverQueryBuilder.class.getName(), DiscoverQueryBuilder.class);
+    }
 }

dspace-api/src/main/java/org/dspace/discovery/SolrServiceImpl.java

@@ -8,6 +8,8 @@
 package org.dspace.discovery;
 
 import static java.util.stream.Collectors.joining;
+import static org.dspace.discovery.indexobject.ItemIndexFactoryImpl.STATUS_FIELD;
+import static org.dspace.discovery.indexobject.ItemIndexFactoryImpl.STATUS_FIELD_PREDB;
 
 import java.io.IOException;
 import java.io.PrintWriter;
@@ -118,8 +120,6 @@ public class SolrServiceImpl implements SearchService, IndexingService {
 
     }
 
-
-
     /**
      * If the handle for the "dso" already exists in the index, and the "dso"
      * has a lastModified timestamp that is newer than the document in the index
@@ -166,6 +166,24 @@ public class SolrServiceImpl implements SearchService, IndexingService {
         indexableObjectService.writeDocument(context, indexableObject, solrInputDocument);
     }
 
+    /**
+     * Update the given indexable object using a given service
+     * @param context                   The DSpace Context
+     * @param indexableObjectService    The service to index the object with
+     * @param indexableObject           The object to index
+     * @param preDB                     Add a "preDB" status to the document
+     */
+    protected void update(Context context, IndexFactory indexableObjectService, IndexableObject indexableObject,
+                          boolean preDB) throws IOException, SQLException, SolrServerException {
+        if (preDB) {
+            final SolrInputDocument solrInputDocument =
+                    indexableObjectService.buildNewDocument(context, indexableObject);
+            indexableObjectService.writeDocument(context, indexableObject, solrInputDocument);
+        } else {
+            update(context, indexableObjectService, indexableObject);
+        }
+    }
+
     /**
      * unIndex removes an Item, Collection, or Community
      *
@@ -454,6 +472,16 @@ public class SolrServiceImpl implements SearchService, IndexingService {
         }
     }
 
+    @Override
+    public void atomicUpdate(Context context, String uniqueIndexId, String field, Map<String, Object> fieldModifier)
+            throws SolrServerException, IOException {
+        SolrInputDocument solrInputDocument = new SolrInputDocument();
+        solrInputDocument.addField(SearchUtils.RESOURCE_UNIQUE_ID, uniqueIndexId);
+        solrInputDocument.addField(field, fieldModifier);
+
+        solrSearchCore.getSolr().add(solrInputDocument);
+    }
+
     // //////////////////////////////////
     // Private
     // //////////////////////////////////
@@ -717,6 +745,11 @@ public class SolrServiceImpl implements SearchService, IndexingService {
 
     }
 
+    @Override
+    public Iterator<Item> iteratorSearch(Context context, IndexableObject dso, DiscoverQuery query)
+        throws SearchServiceException {
+        return new SearchIterator(context, dso, query);
+    }
 
     @Override
     public DiscoverResult search(Context context, DiscoverQuery discoveryQuery)
@@ -733,6 +766,72 @@ public class SolrServiceImpl implements SearchService, IndexingService {
         }
     }
 
+    /**
+     * This class implements an iterator over items that is specifically used to iterate over search results
+     */
+    private class SearchIterator implements Iterator<Item> {
+        private Context context;
+        private DiscoverQuery discoverQuery;
+        private DiscoverResult discoverResult;
+        private IndexableObject dso;
+        private int absoluteCursor;
+        private int relativeCursor;
+        private int pagesize;
+
+        SearchIterator(Context context, DiscoverQuery discoverQuery) throws SearchServiceException {
+            this.context = context;
+            this.discoverQuery = discoverQuery;
+            this.absoluteCursor = discoverQuery.getStart();
+            initialise();
+        }
+
+        SearchIterator(Context context, IndexableObject dso, DiscoverQuery discoverQuery)
+            throws SearchServiceException {
+            this.context = context;
+            this.dso = dso;
+            this.discoverQuery = discoverQuery;
+            initialise();
+        }
+
+        private void initialise() throws SearchServiceException {
+            this.relativeCursor = 0;
+            if (discoverQuery.getMaxResults() != -1) {
+                pagesize = discoverQuery.getMaxResults();
+            } else {
+                pagesize = 10;
+            }
+            discoverQuery.setMaxResults(pagesize);
+            this.discoverResult = search(context, dso, discoverQuery);
+        }
+
+        @Override
+        public boolean hasNext() {
+            return absoluteCursor < discoverResult.getTotalSearchResults();
+        }
+
+        @Override
+        public Item next() {
+            //paginate getting results from the discoverquery.
+            if (relativeCursor == pagesize) {
+                //  get a new page of results when the last element of the previous page has been read
+                int offset = absoluteCursor;
+                // reset the position counter for getting element relativecursor on a page
+                relativeCursor = 0;
+                discoverQuery.setStart(offset);
+                try {
+                    discoverResult = search(context, dso, discoverQuery);
+                } catch (SearchServiceException e) {
+                    log.error("error while getting search results", e);
+                }
+            }
+            // get the element at position relativecursor on a page
+            IndexableObject res = discoverResult.getIndexableObjects().get(relativeCursor);
+            relativeCursor++;
+            absoluteCursor++;
+            return (Item) res.getIndexedObject();
+        }
+    }
+
     protected SolrQuery resolveToSolrQuery(Context context, DiscoverQuery discoveryQuery)
         throws SearchServiceException {
         SolrQuery solrQuery = new SolrQuery();
@@ -753,6 +852,7 @@ public class SolrServiceImpl implements SearchService, IndexingService {
         solrQuery.addField(SearchUtils.RESOURCE_TYPE_FIELD);
         solrQuery.addField(SearchUtils.RESOURCE_ID_FIELD);
         solrQuery.addField(SearchUtils.RESOURCE_UNIQUE_ID);
+        solrQuery.addField(STATUS_FIELD);
 
         if (discoveryQuery.isSpellCheck()) {
             solrQuery.setParam(SpellingParams.SPELLCHECK_Q, query);
@@ -903,12 +1003,15 @@ public class SolrServiceImpl implements SearchService, IndexingService {
                         // Enables solr to remove documents related to items not on database anymore (Stale)
                         // if maxAttemps is greater than 0 cleanup the index on each step
                         if (maxAttempts >= 0) {
+                            Object statusObj = doc.getFirstValue(STATUS_FIELD);
+                            if (!(statusObj instanceof String && statusObj.equals(STATUS_FIELD_PREDB))) {
                                 zombieDocs.add((String) doc.getFirstValue(SearchUtils.RESOURCE_UNIQUE_ID));
                                 // avoid to process the response except if we are in the last allowed execution.
                                 // When maxAttempts is 0 this will be just the first and last run as the
                                 // executionCount is increased at the start of the loop it will be equals to 1
                                 skipLoadingResponse = maxAttempts + 1 != executionCount;
                             }
+                        }
                         continue;
                     }
                     if (!skipLoadingResponse) {
@@ -1389,6 +1492,28 @@ public class SolrServiceImpl implements SearchService, IndexingService {
         }
     }
 
+    @Override
+    public void indexContent(Context context, IndexableObject indexableObject, boolean force,
+                             boolean commit, boolean preDb) throws SearchServiceException, SQLException {
+        if (preDb) {
+            try {
+                final IndexFactory indexableObjectFactory = indexObjectServiceFactory.
+                        getIndexableObjectFactory(indexableObject);
+                if (force || requiresIndexing(indexableObject.getUniqueIndexID(), indexableObject.getLastModified())) {
+                    update(context, indexableObjectFactory, indexableObject, true);
+                    log.info(LogHelper.getHeader(context, "indexed_object", indexableObject.getUniqueIndexID()));
+                }
+            } catch (IOException | SQLException | SolrServerException | SearchServiceException e) {
+                log.error(e.getMessage(), e);
+            }
+        } else {
+            indexContent(context, indexableObject, force);
+        }
+        if (commit) {
+            commit();
+        }
+    }
+
     @Override
     public void commit() throws SearchServiceException {
         try {

dspace-api/src/main/java/org/dspace/discovery/indexobject/IndexFactoryImpl.java

@@ -70,10 +70,20 @@ public abstract class IndexFactoryImpl<T extends IndexableObject, S> implements
         return doc;
     }
 
+    @Override
+    public SolrInputDocument buildNewDocument(Context context, T indexableObject) throws SQLException, IOException {
+        return buildDocument(context, indexableObject);
+    }
+
     @Override
     public void writeDocument(Context context, T indexableObject, SolrInputDocument solrInputDocument)
             throws SQLException, IOException, SolrServerException {
+        try {
             writeDocument(solrInputDocument, null);
+        } catch (Exception e) {
+            log.error("Error occurred while writing SOLR document for {} object {}",
+                      indexableObject.getType(), indexableObject.getID(), e);
+        }
     }
 
     /**

dspace-api/src/main/java/org/dspace/discovery/indexobject/ItemIndexFactoryImpl.java

@@ -79,6 +79,8 @@ public class ItemIndexFactoryImpl extends DSpaceObjectIndexFactoryImpl<Indexable
     private static final Logger log = org.apache.logging.log4j.LogManager.getLogger(ItemIndexFactoryImpl.class);
     public static final String VARIANTS_STORE_SEPARATOR = "###";
     public static final String STORE_SEPARATOR = "\n|||\n";
+    public static final String STATUS_FIELD = "database_status";
+    public static final String STATUS_FIELD_PREDB = "predb";
 
 
     @Autowired
@@ -210,6 +212,14 @@ public class ItemIndexFactoryImpl extends DSpaceObjectIndexFactoryImpl<Indexable
         return item.equals(latestVersion.getItem());
     }
 
+    @Override
+    public SolrInputDocument buildNewDocument(Context context, IndexableItem indexableItem)
+            throws SQLException, IOException {
+        SolrInputDocument doc = buildDocument(context, indexableItem);
+        doc.addField(STATUS_FIELD, STATUS_FIELD_PREDB);
+        return doc;
+    }
+
     @Override
     public void addDiscoveryFields(SolrInputDocument doc, Context context, Item item,
                                    List<DiscoveryConfiguration> discoveryConfigurations)

dspace-api/src/main/java/org/dspace/discovery/indexobject/factory/IndexFactory.java

@@ -46,6 +46,14 @@ public interface IndexFactory<T extends IndexableObject, S> {
      */
     SolrInputDocument buildDocument(Context context, T indexableObject) throws SQLException, IOException;
 
+    /**
+     * Create solr document with all the shared fields initialized.
+     * Can contain special fields required for "new" documents vs regular buildDocument
+     * @param indexableObject   the indexableObject that we want to index
+     * @return                  initialized solr document
+     */
+    SolrInputDocument buildNewDocument(Context context, T indexableObject) throws SQLException, IOException;
+
     /**
      * Write the provided document to the solr core
      * @param context               DSpace context object

dspace-api/src/main/java/org/dspace/discovery/utils/DiscoverQueryBuilder.java

@@ -5,7 +5,7 @@
  *
  * http://www.dspace.org/license/
  */
-package org.dspace.app.rest.utils;
+package org.dspace.discovery.utils;
 
 import static java.util.Collections.emptyList;
 import static java.util.Collections.singletonList;
@@ -19,10 +19,6 @@ import java.util.Objects;
 import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.logging.log4j.Logger;
-import org.dspace.app.rest.converter.query.SearchQueryConverter;
-import org.dspace.app.rest.exception.DSpaceBadRequestException;
-import org.dspace.app.rest.exception.InvalidSearchRequestException;
-import org.dspace.app.rest.parameter.SearchFilter;
 import org.dspace.core.Context;
 import org.dspace.core.LogHelper;
 import org.dspace.discovery.DiscoverFacetField;
@@ -32,6 +28,7 @@ import org.dspace.discovery.DiscoverQuery;
 import org.dspace.discovery.FacetYearRange;
 import org.dspace.discovery.IndexableObject;
 import org.dspace.discovery.SearchService;
+import org.dspace.discovery.SearchServiceException;
 import org.dspace.discovery.configuration.DiscoveryConfiguration;
 import org.dspace.discovery.configuration.DiscoveryConfigurationParameters;
 import org.dspace.discovery.configuration.DiscoveryHitHighlightFieldConfiguration;
@@ -40,17 +37,11 @@ import org.dspace.discovery.configuration.DiscoverySearchFilterFacet;
 import org.dspace.discovery.configuration.DiscoverySortConfiguration;
 import org.dspace.discovery.configuration.DiscoverySortFieldConfiguration;
 import org.dspace.discovery.indexobject.factory.IndexFactory;
+import org.dspace.discovery.utils.parameter.QueryBuilderSearchFilter;
 import org.dspace.services.ConfigurationService;
 import org.springframework.beans.factory.InitializingBean;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.data.domain.Pageable;
-import org.springframework.data.domain.Sort;
-import org.springframework.stereotype.Component;
 
-/**
- * This class builds the queries for the /search and /facet endpoints.
- */
-@Component
 public class DiscoverQueryBuilder implements InitializingBean {
 
     private static final Logger log = org.apache.logging.log4j.LogManager.getLogger(DiscoverQueryBuilder.class);
@@ -80,19 +71,24 @@ public class DiscoverQueryBuilder implements InitializingBean {
      * @param query                  the query string for this discovery query
      * @param searchFilters          the search filters for this discovery query
      * @param dsoType                only include search results with this type
-     * @param page                      the pageable for this discovery query
+     * @param pageSize               the page size for this discovery query
+     * @param offset                 the offset for this discovery query
+     * @param sortProperty           the sort property for this discovery query
+     * @param sortDirection          the sort direction for this discovery query
      */
     public DiscoverQuery buildQuery(Context context, IndexableObject scope,
                                     DiscoveryConfiguration discoveryConfiguration,
-                                    String query, List<SearchFilter> searchFilters,
-                                    String dsoType, Pageable page)
-        throws DSpaceBadRequestException {
+                                    String query, List<QueryBuilderSearchFilter> searchFilters,
+                                    String dsoType, Integer pageSize, Long offset, String sortProperty,
+                                    String sortDirection) throws SearchServiceException {
 
         List<String> dsoTypes = dsoType != null ? singletonList(dsoType) : emptyList();
 
-        return buildQuery(context, scope, discoveryConfiguration, query, searchFilters, dsoTypes, page);
+        return buildQuery(context, scope, discoveryConfiguration, query, searchFilters, dsoTypes, pageSize, offset,
+                          sortProperty, sortDirection);
     }
 
+
     /**
      * Build a discovery query
      *
@@ -102,13 +98,17 @@ public class DiscoverQueryBuilder implements InitializingBean {
      * @param query                  the query string for this discovery query
      * @param searchFilters          the search filters for this discovery query
      * @param dsoTypes               only include search results with one of these types
-     * @param page                      the pageable for this discovery query
+     * @param pageSize               the page size for this discovery query
+     * @param offset                 the offset for this discovery query
+     * @param sortProperty           the sort property for this discovery query
+     * @param sortDirection          the sort direction for this discovery query
      */
     public DiscoverQuery buildQuery(Context context, IndexableObject scope,
                                     DiscoveryConfiguration discoveryConfiguration,
-                                    String query, List<SearchFilter> searchFilters,
-                                    List<String> dsoTypes, Pageable page)
-        throws DSpaceBadRequestException {
+                                    String query, List<QueryBuilderSearchFilter> searchFilters,
+                                    List<String> dsoTypes, Integer pageSize, Long offset, String sortProperty,
+                                    String sortDirection)
+            throws IllegalArgumentException, SearchServiceException {
 
         DiscoverQuery queryArgs = buildCommonDiscoverQuery(context, discoveryConfiguration, query, searchFilters,
                                                            dsoTypes);
@@ -117,8 +117,8 @@ public class DiscoverQueryBuilder implements InitializingBean {
         addFaceting(context, scope, queryArgs, discoveryConfiguration);
 
         //Configure pagination and sorting
-        configurePagination(page, queryArgs);
-        configureSorting(page, queryArgs, discoveryConfiguration.getSearchSortConfiguration());
+        configurePagination(pageSize, offset, queryArgs);
+        configureSorting(sortProperty, sortDirection, queryArgs, discoveryConfiguration.getSearchSortConfiguration());
 
         addDiscoveryHitHighlightFields(discoveryConfiguration, queryArgs);
         return queryArgs;
@@ -147,19 +147,21 @@ public class DiscoverQueryBuilder implements InitializingBean {
      * @param query                  the query string for this discovery query
      * @param searchFilters          the search filters for this discovery query
      * @param dsoType                only include search results with this type
-     * @param page                      the pageable for this discovery query
+     * @param pageSize               the page size for this discovery query
+     * @param offset                 the offset for this discovery query
      * @param facetName              the facet field
      */
     public DiscoverQuery buildFacetQuery(Context context, IndexableObject scope,
                                          DiscoveryConfiguration discoveryConfiguration,
-                                         String prefix, String query, List<SearchFilter> searchFilters,
-                                         String dsoType, Pageable page, String facetName)
-        throws DSpaceBadRequestException {
+                                         String prefix, String query, List<QueryBuilderSearchFilter> searchFilters,
+                                         String dsoType, Integer pageSize, Long offset, String facetName)
+            throws IllegalArgumentException {
 
         List<String> dsoTypes = dsoType != null ? singletonList(dsoType) : emptyList();
 
         return buildFacetQuery(
-                context, scope, discoveryConfiguration, prefix, query, searchFilters, dsoTypes, page, facetName);
+                context, scope, discoveryConfiguration, prefix, query, searchFilters, dsoTypes, pageSize, offset,
+                facetName);
     }
 
     /**
@@ -172,49 +174,52 @@ public class DiscoverQueryBuilder implements InitializingBean {
      * @param query                  the query string for this discovery query
      * @param searchFilters          the search filters for this discovery query
      * @param dsoTypes               only include search results with one of these types
-     * @param page                      the pageable for this discovery query
+     * @param pageSize               the page size for this discovery query
+     * @param offset                 the offset for this discovery query
      * @param facetName              the facet field
      */
     public DiscoverQuery buildFacetQuery(Context context, IndexableObject scope,
                                          DiscoveryConfiguration discoveryConfiguration,
-                                         String prefix, String query, List<SearchFilter> searchFilters,
-                                         List<String> dsoTypes, Pageable page, String facetName)
-        throws DSpaceBadRequestException {
+                                         String prefix, String query, List<QueryBuilderSearchFilter> searchFilters,
+                                         List<String> dsoTypes, Integer pageSize, Long offset, String facetName)
+            throws IllegalArgumentException {
 
         DiscoverQuery queryArgs = buildCommonDiscoverQuery(context, discoveryConfiguration, query, searchFilters,
                                                            dsoTypes);
 
         //When all search criteria are set, configure facet results
-        addFacetingForFacets(context, scope, prefix, queryArgs, discoveryConfiguration, facetName, page);
+        addFacetingForFacets(context, scope, prefix, queryArgs, discoveryConfiguration, facetName, pageSize);
 
         //We don' want any search results, we only want facet values
         queryArgs.setMaxResults(0);
 
         //Configure pagination
-        configurePaginationForFacets(page, queryArgs);
+        configurePaginationForFacets(offset, queryArgs);
 
         return queryArgs;
     }
 
-    private void configurePaginationForFacets(Pageable page, DiscoverQuery queryArgs) {
-        if (page != null) {
-            queryArgs.setFacetOffset(Math.toIntExact(page.getOffset()));
+    private void configurePaginationForFacets(Long offset, DiscoverQuery queryArgs) {
+        if (offset != null) {
+            queryArgs.setFacetOffset(Math.toIntExact(offset));
         }
     }
 
     private DiscoverQuery addFacetingForFacets(Context context, IndexableObject scope, String prefix,
-            DiscoverQuery queryArgs, DiscoveryConfiguration discoveryConfiguration, String facetName, Pageable page)
-            throws DSpaceBadRequestException {
+                                               DiscoverQuery queryArgs, DiscoveryConfiguration discoveryConfiguration,
+                                               String facetName, Integer pageSize)
+            throws IllegalArgumentException {
 
         DiscoverySearchFilterFacet facet = discoveryConfiguration.getSidebarFacet(facetName);
         if (facet != null) {
             queryArgs.setFacetMinCount(1);
-            int pageSize = Math.min(pageSizeLimit, page.getPageSize());
+
+            pageSize = pageSize != null ? Math.min(pageSizeLimit, pageSize) : pageSizeLimit;
 
             fillFacetIntoQueryArgs(context, scope, prefix, queryArgs, facet, pageSize);
 
         } else {
-            throw new DSpaceBadRequestException(facetName + " is not a valid search facet");
+            throw new IllegalArgumentException(facetName + " is not a valid search facet");
         }
 
         return queryArgs;
@@ -241,18 +246,18 @@ public class DiscoverQueryBuilder implements InitializingBean {
             int facetLimit = pageSize + 1;
             //This should take care of the sorting for us
             queryArgs.addFacetField(new DiscoverFacetField(facet.getIndexFieldName(), facet.getType(), facetLimit,
-                    facet.getSortOrderSidebar(), StringUtils.trimToNull(prefix)));
+                                                           facet.getSortOrderSidebar(),
+                                                           StringUtils.trimToNull(prefix)));
         }
     }
 
     private DiscoverQuery buildCommonDiscoverQuery(Context context, DiscoveryConfiguration discoveryConfiguration,
                                                    String query,
-                                                   List<SearchFilter> searchFilters, List<String> dsoTypes)
-        throws DSpaceBadRequestException {
+                                                   List<QueryBuilderSearchFilter> searchFilters, List<String> dsoTypes)
+            throws IllegalArgumentException {
         DiscoverQuery queryArgs = buildBaseQueryForConfiguration(discoveryConfiguration);
 
-        //Add search filters
-        queryArgs.addFilterQueries(convertFilters(context, discoveryConfiguration, searchFilters));
+        queryArgs.addFilterQueries(convertFiltersToString(context, discoveryConfiguration, searchFilters));
 
         //Set search query
         if (StringUtils.isNotBlank(query)) {
@@ -274,30 +279,17 @@ public class DiscoverQueryBuilder implements InitializingBean {
         queryArgs.setDiscoveryConfigurationName(discoveryConfiguration.getId());
         queryArgs.addFilterQueries(discoveryConfiguration.getDefaultFilterQueries()
                                                          .toArray(
-                                                             new String[discoveryConfiguration.getDefaultFilterQueries()
+                                                                 new String[discoveryConfiguration
+                                                                         .getDefaultFilterQueries()
                                                                          .size()]));
         return queryArgs;
     }
 
-    private void configureSorting(Pageable page, DiscoverQuery queryArgs,
-                                  DiscoverySortConfiguration searchSortConfiguration) throws DSpaceBadRequestException {
-        String sortBy = null;
-        String sortOrder = null;
-
-        //Read the Pageable object if there is one
-        if (page != null) {
-            Sort sort = page.getSort();
-            if (sort != null && sort.iterator().hasNext()) {
-                Sort.Order order = sort.iterator().next();
-                sortBy = order.getProperty();
-                sortOrder = order.getDirection().name();
-            }
-        }
-
-        if (StringUtils.isNotBlank(sortBy) && !isConfigured(sortBy, searchSortConfiguration)) {
-            throw new InvalidSearchRequestException(
-                         "The field: " + sortBy + "is not configured for the configuration!");
-        }
+    private void configureSorting(String sortProperty, String sortDirection, DiscoverQuery queryArgs,
+                                  DiscoverySortConfiguration searchSortConfiguration)
+            throws IllegalArgumentException, SearchServiceException {
+        String sortBy = sortProperty;
+        String sortOrder = sortDirection;
 
         //Load defaults if we did not receive values
         if (sortBy == null) {
@@ -307,6 +299,12 @@ public class DiscoverQueryBuilder implements InitializingBean {
             sortOrder = getDefaultSortDirection(searchSortConfiguration, sortOrder);
         }
 
+        if (StringUtils.isNotBlank(sortBy) && !isConfigured(sortBy, searchSortConfiguration)) {
+            throw new SearchServiceException(
+                    "The field: " + sortBy + "is not configured for the configuration!");
+        }
+
+
         //Update Discovery query
         DiscoverySortFieldConfiguration sortFieldConfiguration = searchSortConfiguration
                 .getSortFieldConfiguration(sortBy);
@@ -320,11 +318,11 @@ public class DiscoverQueryBuilder implements InitializingBean {
             } else if ("desc".equalsIgnoreCase(sortOrder)) {
                 queryArgs.setSortField(sortField, DiscoverQuery.SORT_ORDER.desc);
             } else {
-                throw new DSpaceBadRequestException(sortOrder + " is not a valid sort order");
+                throw new IllegalArgumentException(sortOrder + " is not a valid sort order");
             }
 
         } else {
-            throw new DSpaceBadRequestException(sortBy + " is not a valid sort field");
+            throw new IllegalArgumentException(sortBy + " is not a valid sort field");
         }
     }
 
@@ -354,59 +352,24 @@ public class DiscoverQueryBuilder implements InitializingBean {
         return sortBy;
     }
 
-    private void configurePagination(Pageable page, DiscoverQuery queryArgs) {
-        if (page != null) {
-            queryArgs.setMaxResults(Math.min(pageSizeLimit, page.getPageSize()));
-            queryArgs.setStart(Math.toIntExact(page.getOffset()));
-        } else {
-            queryArgs.setMaxResults(pageSizeLimit);
-            queryArgs.setStart(0);
-        }
+    private void configurePagination(Integer size, Long offset, DiscoverQuery queryArgs) {
+        queryArgs.setMaxResults(size != null ? Math.min(pageSizeLimit, size) : pageSizeLimit);
+        queryArgs.setStart(offset != null ? Math.toIntExact(offset) : 0);
     }
 
-    private String getDsoType(String dsoType) throws DSpaceBadRequestException {
+    private String getDsoType(String dsoType) throws IllegalArgumentException {
         for (IndexFactory indexFactory : indexableFactories) {
             if (StringUtils.equalsIgnoreCase(indexFactory.getType(), dsoType)) {
                 return indexFactory.getType();
             }
         }
-        throw new DSpaceBadRequestException(dsoType + " is not a valid DSpace Object type");
+        throw new IllegalArgumentException(dsoType + " is not a valid DSpace Object type");
     }
 
     public void setIndexableFactories(List<IndexFactory> indexableFactories) {
         this.indexableFactories = indexableFactories;
     }
 
-    private String[] convertFilters(Context context, DiscoveryConfiguration discoveryConfiguration,
-                                    List<SearchFilter> searchFilters) throws DSpaceBadRequestException {
-        ArrayList<String> filterQueries = new ArrayList<>(CollectionUtils.size(searchFilters));
-
-        SearchQueryConverter searchQueryConverter = new SearchQueryConverter();
-        List<SearchFilter> transformedFilters = searchQueryConverter.convert(searchFilters);
-        try {
-            for (SearchFilter searchFilter : CollectionUtils.emptyIfNull(transformedFilters)) {
-                DiscoverySearchFilter filter = discoveryConfiguration.getSearchFilter(searchFilter.getName());
-                if (filter == null) {
-                    throw new DSpaceBadRequestException(searchFilter.getName() + " is not a valid search filter");
-                }
-
-                DiscoverFilterQuery filterQuery = searchService.toFilterQuery(context,
-                                                                              filter.getIndexFieldName(),
-                                                                              searchFilter.getOperator(),
-                                                                              searchFilter.getValue(),
-                                                                              discoveryConfiguration);
-
-                if (filterQuery != null) {
-                    filterQueries.add(filterQuery.getFilterQuery());
-                }
-            }
-        } catch (SQLException e) {
-            throw new DSpaceBadRequestException("There was a problem parsing the search filters.", e);
-        }
-
-        return filterQueries.toArray(new String[filterQueries.size()]);
-    }
-
     private DiscoverQuery addFaceting(Context context, IndexableObject scope, DiscoverQuery queryArgs,
                                       DiscoveryConfiguration discoveryConfiguration) {
 
@@ -427,4 +390,34 @@ public class DiscoverQueryBuilder implements InitializingBean {
         return queryArgs;
     }
 
+    private String[] convertFiltersToString(Context context, DiscoveryConfiguration discoveryConfiguration,
+                                            List<QueryBuilderSearchFilter> searchFilters)
+            throws IllegalArgumentException {
+        ArrayList<String> filterQueries = new ArrayList<>(CollectionUtils.size(searchFilters));
+
+        try {
+            for (QueryBuilderSearchFilter searchFilter : CollectionUtils.emptyIfNull(searchFilters)) {
+                DiscoverySearchFilter filter = discoveryConfiguration.getSearchFilter(searchFilter.getName());
+                if (filter == null) {
+                    throw new IllegalArgumentException(searchFilter.getName() + " is not a valid search filter");
+                }
+
+                DiscoverFilterQuery filterQuery = searchService.toFilterQuery(context,
+                                                                              filter.getIndexFieldName(),
+                                                                              searchFilter.getOperator(),
+                                                                              searchFilter.getValue(),
+                                                                              discoveryConfiguration);
+
+                if (filterQuery != null) {
+                    filterQueries.add(filterQuery.getFilterQuery());
+                }
+            }
+        } catch (SQLException e) {
+            throw new IllegalArgumentException("There was a problem parsing the search filters.", e);
+        }
+
+        return filterQueries.toArray(new String[filterQueries.size()]);
+    }
+
+
 }

dspace-api/src/main/java/org/dspace/discovery/utils/parameter/QueryBuilderSearchFilter.java

@@ -0,0 +1,70 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.discovery.utils.parameter;
+
+import java.util.Objects;
+
+import org.apache.commons.lang3.StringUtils;
+
+/**
+ * Representation for a Discovery search filter
+ */
+public class QueryBuilderSearchFilter {
+
+    private String name;
+    private String operator;
+    private String value;
+
+    public QueryBuilderSearchFilter(final String name, final String operator, final String value) {
+        this.name = name;
+        this.operator = operator;
+        this.value = value;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public String getOperator() {
+        return operator;
+    }
+
+    public String getValue() {
+        return value;
+    }
+
+    public String toString() {
+        return "QueryBuilderSearchFilter{" +
+                "name='" + name + '\'' +
+                ", operator='" + operator + '\'' +
+                ", value='" + value + '\'' +
+                '}';
+    }
+
+    public boolean equals(Object object) {
+        if (object instanceof QueryBuilderSearchFilter) {
+            QueryBuilderSearchFilter obj = (QueryBuilderSearchFilter) object;
+
+            if (!StringUtils.equals(obj.getName(), getName())) {
+                return false;
+            }
+            if (!StringUtils.equals(obj.getOperator(), getOperator())) {
+                return false;
+            }
+            if (!StringUtils.equals(obj.getValue(), getValue())) {
+                return false;
+            }
+            return true;
+        }
+        return false;
+    }
+
+    public int hashCode() {
+        return Objects.hash(name, operator, value);
+    }
+}

dspace-api/src/main/java/org/dspace/eperson/EPersonServiceImpl.java

@@ -7,6 +7,8 @@
  */
 package org.dspace.eperson;
 
+import static org.dspace.content.Item.ANY;
+
 import java.io.IOException;
 import java.sql.SQLException;
 import java.util.ArrayList;
@@ -23,6 +25,7 @@ import org.apache.commons.codec.DecoderException;
 import org.apache.commons.collections4.CollectionUtils;
 import org.apache.commons.lang3.StringUtils;
 import org.apache.logging.log4j.Logger;
+import org.dspace.app.orcid.service.OrcidTokenService;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.authorize.factory.AuthorizeServiceFactory;
 import org.dspace.authorize.service.AuthorizeService;
@@ -30,6 +33,7 @@ import org.dspace.authorize.service.ResourcePolicyService;
 import org.dspace.content.DSpaceObjectServiceImpl;
 import org.dspace.content.Item;
 import org.dspace.content.MetadataField;
+import org.dspace.content.MetadataValue;
 import org.dspace.content.WorkspaceItem;
 import org.dspace.content.factory.ContentServiceFactory;
 import org.dspace.content.service.ItemService;
@@ -43,6 +47,7 @@ import org.dspace.eperson.service.EPersonService;
 import org.dspace.eperson.service.GroupService;
 import org.dspace.eperson.service.SubscribeService;
 import org.dspace.event.Event;
+import org.dspace.util.UUIDUtils;
 import org.dspace.versioning.Version;
 import org.dspace.versioning.VersionHistory;
 import org.dspace.versioning.dao.VersionDAO;
@@ -96,6 +101,8 @@ public class EPersonServiceImpl extends DSpaceObjectServiceImpl<EPerson> impleme
     protected VersionDAO versionDAO;
     @Autowired(required = true)
     protected ClaimedTaskService claimedTaskService;
+    @Autowired
+    protected OrcidTokenService orcidTokenService;
 
     protected EPersonServiceImpl() {
         super();
@@ -379,6 +386,8 @@ public class EPersonServiceImpl extends DSpaceObjectServiceImpl<EPerson> impleme
             group.getMembers().remove(ePerson);
         }
 
+        orcidTokenService.deleteByEPerson(context, ePerson);
+
         // Remove any subscriptions
         subscribeService.deleteByEPerson(context, ePerson);
 
@@ -570,6 +579,15 @@ public class EPersonServiceImpl extends DSpaceObjectServiceImpl<EPerson> impleme
         return ePersonDAO.countRows(context);
     }
 
+    @Override
+    public EPerson findByProfileItem(Context context, Item profile) throws SQLException {
+        List<MetadataValue> owners = itemService.getMetadata(profile, "dspace", "object", "owner", ANY);
+        if (CollectionUtils.isEmpty(owners)) {
+            return null;
+        }
+        return find(context, UUIDUtils.fromString(owners.get(0).getAuthority()));
+    }
+
     @Override
     public String getName(EPerson dso) {
         return dso.getName();

dspace-api/src/main/java/org/dspace/eperson/service/EPersonService.java

@@ -15,6 +15,7 @@ import java.util.List;
 import java.util.Set;
 
 import org.dspace.authorize.AuthorizeException;
+import org.dspace.content.Item;
 import org.dspace.content.MetadataFieldName;
 import org.dspace.content.service.DSpaceObjectLegacySupportService;
 import org.dspace.content.service.DSpaceObjectService;
@@ -263,4 +264,16 @@ public interface EPersonService extends DSpaceObjectService<EPerson>, DSpaceObje
      * @throws SQLException An exception that provides information on a database access error or other errors.
      */
     int countTotal(Context context) throws SQLException;
+
+    /**
+     * Find the EPerson related to the given profile item. If the given item is not
+     * a profile item, null is returned.
+     *
+     * @param  context      The relevant DSpace Context.
+     * @param  profile      the profile item to search for
+     * @return              the EPerson, if any
+     * @throws SQLException An exception that provides information on a database
+     *                      access error or other errors.
+     */
+    EPerson findByProfileItem(Context context, Item profile) throws SQLException;
 }

dspace-api/src/main/java/org/dspace/external/provider/impl/OrcidV3AuthorDataProvider.java

@@ -140,7 +140,7 @@ public class OrcidV3AuthorDataProvider extends AbstractExternalDataProvider {
                             new MetadataValueDTO("person", "identifier", "orcid", null, person.getName().getPath()));
             externalDataObject
                     .addMetadata(new MetadataValueDTO("dc", "identifier", "uri", null,
-                                                      orcidUrl + person.getName().getPath()));
+                                                      orcidUrl + "/" + person.getName().getPath()));
             if (!StringUtils.isBlank(lastName) && !StringUtils.isBlank(firstName)) {
                 externalDataObject.setDisplayValue(lastName + ", " + firstName);
                 externalDataObject.setValue(lastName + ", " + firstName);

dspace-api/src/main/java/org/dspace/importer/external/cinii/CiniiFieldMapping.java

@@ -0,0 +1,37 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.cinii;
+
+import java.util.Map;
+import javax.annotation.Resource;
+
+import org.dspace.importer.external.metadatamapping.AbstractMetadataFieldMapping;
+
+/**
+ * An implementation of {@link AbstractMetadataFieldMapping}
+ * Responsible for defining the mapping of the Cinii metadatum fields on the DSpace metadatum fields
+ *
+ * @author Pasquale Cavallo (pasquale.cavallo at 4science dot it)
+ */
+public class CiniiFieldMapping extends AbstractMetadataFieldMapping {
+
+    /**
+     * Defines which metadatum is mapped on which metadatum. Note that while the key must be unique it
+     * only matters here for postprocessing of the value. The mapped MetadatumContributor has full control over
+     * what metadatafield is generated.
+     *
+     * @param metadataFieldMap The map containing the link between retrieve metadata and metadata that will be set to
+     *                         the item.
+     */
+    @Override
+    @Resource(name = "ciniiMetadataFieldMap")
+    public void setMetadataFieldMap(Map metadataFieldMap) {
+        super.setMetadataFieldMap(metadataFieldMap);
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/cinii/CiniiImportMetadataSourceServiceImpl.java

@@ -0,0 +1,447 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.cinii;
+
+import java.io.IOException;
+import java.io.StringReader;
+import java.net.URISyntaxException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.Callable;
+import javax.el.MethodNotFoundException;
+
+import org.apache.commons.collections.CollectionUtils;
+import org.apache.commons.lang.StringUtils;
+import org.apache.http.HttpException;
+import org.apache.http.client.utils.URIBuilder;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.dspace.content.Item;
+import org.dspace.importer.external.datamodel.ImportRecord;
+import org.dspace.importer.external.datamodel.Query;
+import org.dspace.importer.external.exception.MetadataSourceException;
+import org.dspace.importer.external.liveimportclient.service.LiveImportClient;
+import org.dspace.importer.external.metadatamapping.MetadatumDTO;
+import org.dspace.importer.external.service.AbstractImportMetadataSourceService;
+import org.dspace.importer.external.service.components.QuerySource;
+import org.dspace.services.ConfigurationService;
+import org.jdom2.Attribute;
+import org.jdom2.Document;
+import org.jdom2.Element;
+import org.jdom2.JDOMException;
+import org.jdom2.Namespace;
+import org.jdom2.filter.Filters;
+import org.jdom2.input.SAXBuilder;
+import org.jdom2.xpath.XPathExpression;
+import org.jdom2.xpath.XPathFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+
+/**
+ * Implements a data source for querying Cinii
+ * 
+ * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+ */
+public class CiniiImportMetadataSourceServiceImpl extends AbstractImportMetadataSourceService<Element>
+        implements QuerySource {
+
+    private final static Logger log = LogManager.getLogger();
+
+    private String url;
+    private String urlSearch;
+
+    @Autowired
+    private LiveImportClient liveImportClient;
+
+    @Autowired
+    private ConfigurationService configurationService;
+
+    @Override
+    public String getImportSource() {
+        return "cinii";
+    }
+
+    @Override
+    public void init() throws Exception {}
+
+    @Override
+    public ImportRecord getRecord(String id) throws MetadataSourceException {
+        List<ImportRecord> records = retry(new SearchByIdCallable(id));
+        return CollectionUtils.isNotEmpty(records) ? records.get(0) : null;
+    }
+
+    @Override
+    public int getRecordsCount(String query) throws MetadataSourceException {
+        return retry(new CountByQueryCallable(query));
+    }
+
+    @Override
+    public int getRecordsCount(Query query) throws MetadataSourceException {
+        return retry(new CountByQueryCallable(query));
+    }
+
+    @Override
+    public Collection<ImportRecord> getRecords(String query, int start, int count) throws MetadataSourceException {
+        return retry(new SearchByQueryCallable(query, count, start));
+    }
+
+    @Override
+    public Collection<ImportRecord> getRecords(Query query) throws MetadataSourceException {
+        return retry(new SearchByQueryCallable(query));
+    }
+
+    @Override
+    public ImportRecord getRecord(Query query) throws MetadataSourceException {
+        List<ImportRecord> records = retry(new SearchByIdCallable(query));
+        return CollectionUtils.isNotEmpty(records) ? records.get(0) : null;
+    }
+
+    @Override
+    public Collection<ImportRecord> findMatchingRecords(Query query) throws MetadataSourceException {
+        return retry(new FindMatchingRecordCallable(query));
+    }
+
+    @Override
+    public Collection<ImportRecord> findMatchingRecords(Item item) throws MetadataSourceException {
+        throw new MethodNotFoundException("This method is not implemented for Cinii");
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    public String getUrlSearch() {
+        return urlSearch;
+    }
+
+    public void setUrlSearch(String urlSearch) {
+        this.urlSearch = urlSearch;
+    }
+
+    /**
+     * This class is a Callable implementation to get CiNii entries based on
+     * query object.
+     * 
+     * This Callable use as query value the string queryString passed to constructor.
+     * If the object will be construct through Query.class instance, a Query's map entry with key "query" will be used.
+     * Pagination is supported too, using the value of the Query's map with keys "start" and "count".
+     * 
+     * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+     */
+    private class SearchByQueryCallable implements Callable<List<ImportRecord>> {
+
+        private Query query;
+
+        private SearchByQueryCallable(String queryString, Integer maxResult, Integer start) {
+            query = new Query();
+            query.addParameter("query", queryString);
+            query.addParameter("count", maxResult);
+            query.addParameter("start", start);
+        }
+
+        private SearchByQueryCallable(Query query) {
+            this.query = query;
+        }
+
+        @Override
+        public List<ImportRecord> call() throws Exception {
+            List<ImportRecord> records = new LinkedList<ImportRecord>();
+            Integer count = query.getParameterAsClass("count", Integer.class);
+            Integer start = query.getParameterAsClass("start", Integer.class);
+            String queryString = query.getParameterAsClass("query", String.class);
+            String appId = configurationService.getProperty("cinii.appid");
+            List<String> ids = getCiniiIds(appId, count, null, null, null, start, queryString);
+            if (CollectionUtils.isNotEmpty(ids)) {
+                for (String id : ids) {
+                    List<ImportRecord> tmp = search(id, appId);
+                    if (CollectionUtils.isNotEmpty(tmp)) {
+                        tmp.forEach(x -> x.addValue(createIdentifier(id)));
+                    }
+                    records.addAll(tmp);
+                }
+            }
+            return records;
+        }
+    }
+
+    /**
+     * This class is a Callable implementation to get an CiNii entry using CiNii ID
+     * 
+     * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+     */
+    private class SearchByIdCallable implements Callable<List<ImportRecord>> {
+        private Query query;
+
+        private SearchByIdCallable(Query query) {
+            this.query = query;
+        }
+
+        private SearchByIdCallable(String id) {
+            this.query = new Query();
+            query.addParameter("id", id);
+        }
+
+        @Override
+        public List<ImportRecord> call() throws Exception {
+            String appId = configurationService.getProperty("cinii.appid");
+            String id = query.getParameterAsClass("id", String.class);
+            List<ImportRecord> importRecord = search(id, appId);
+            if (CollectionUtils.isNotEmpty(importRecord)) {
+                importRecord.forEach(x -> x.addValue(createIdentifier(id)));
+            }
+            return importRecord;
+        }
+    }
+
+    /**
+     * This class is a Callable implementation to search CiNii entries
+     * using author, title and year.
+     * Pagination is supported too, using the value of the Query's map with keys "start" and "count".
+     * 
+     * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+     */
+    private class FindMatchingRecordCallable implements Callable<List<ImportRecord>> {
+
+        private Query query;
+
+        private FindMatchingRecordCallable(Query q) {
+            query = q;
+        }
+
+        @Override
+        public List<ImportRecord> call() throws Exception {
+            List<ImportRecord> records = new LinkedList<ImportRecord>();
+            String title = query.getParameterAsClass("title", String.class);
+            String author = query.getParameterAsClass("author", String.class);
+            Integer year = query.getParameterAsClass("year", Integer.class);
+            Integer maxResult = query.getParameterAsClass("maxResult", Integer.class);
+            Integer start = query.getParameterAsClass("start", Integer.class);
+            String appId = configurationService.getProperty("cinii.appid");
+            List<String> ids = getCiniiIds(appId, maxResult, author, title, year, start, null);
+            if (CollectionUtils.isNotEmpty(ids)) {
+                for (String id : ids) {
+                    List<ImportRecord> importRecords = search(id, appId);
+                    if (CollectionUtils.isNotEmpty(importRecords)) {
+                        importRecords.forEach(x -> x.addValue(createIdentifier(id)));
+                    }
+                    records.addAll(importRecords);
+                }
+            }
+            return records;
+        }
+
+    }
+
+    /**
+     * This class is a Callable implementation to count the number
+     * of entries for an CiNii query.
+     * 
+     * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+     */
+    private class CountByQueryCallable implements Callable<Integer> {
+        private Query query;
+
+
+        private CountByQueryCallable(String queryString) {
+            query = new Query();
+            query.addParameter("query", queryString);
+        }
+
+        private CountByQueryCallable(Query query) {
+            this.query = query;
+        }
+
+        @Override
+        public Integer call() throws Exception {
+            String appId = configurationService.getProperty("cinii.appid");
+            String queryString = query.getParameterAsClass("query", String.class);
+            return countCiniiElement(appId, null, null, null, null, null, queryString);
+        }
+    }
+
+    /**
+     * Get metadata by searching CiNii RDF API with CiNii NAID
+     *
+     * @param id    CiNii NAID to search by
+     * @param appId registered application identifier for the API
+     * @return record metadata
+     * @throws IOException   A general class of exceptions produced by failed or interrupted I/O operations.
+     * @throws HttpException Represents a XML/HTTP fault and provides access to the HTTP status code.
+     */
+    protected List<ImportRecord> search(String id, String appId)
+        throws IOException, HttpException {
+        try {
+            List<ImportRecord> records = new LinkedList<ImportRecord>();
+            URIBuilder uriBuilder = new URIBuilder(this.url + id + ".rdf?appid=" + appId);
+            Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+            String response = liveImportClient.executeHttpGetRequest(1000, uriBuilder.toString(), params);
+            List<Element> elements = splitToRecords(response);
+            for (Element record : elements) {
+                records.add(transformSourceRecords(record));
+            }
+            return records;
+        } catch (URISyntaxException e) {
+            log.error(e.getMessage(), e);
+            throw new RuntimeException(e.getMessage(), e);
+        }
+    }
+
+    private List<Element> splitToRecords(String recordsSrc) {
+        try {
+            SAXBuilder saxBuilder = new SAXBuilder();
+            Document document = saxBuilder.build(new StringReader(recordsSrc));
+            Element root = document.getRootElement();
+            return root.getChildren();
+        } catch (JDOMException | IOException e) {
+            log.error(e.getMessage(), e);
+            throw new RuntimeException(e.getMessage(), e);
+        }
+    }
+
+    /**
+     * Returns a list of uri links (for example:https://cir.nii.ac.jp/crid/123456789)
+     * to the searched CiNii articles
+     * 
+     * @param appId       Application ID
+     * @param maxResult   The number of search results per page
+     * @param author      Author name
+     * @param title       Article name
+     * @param year        Year of publication
+     * @param start       Start number for the acquired search result list
+     * @param query       Keyword to be searched
+     */
+    private List<String> getCiniiIds(String appId, Integer maxResult, String author, String title,
+        Integer year, Integer start, String query) {
+        try {
+            List<String> ids = new ArrayList<>();
+            URIBuilder uriBuilder = new URIBuilder(this.urlSearch);
+            uriBuilder.addParameter("format", "rss");
+            if (StringUtils.isNotBlank(appId)) {
+                uriBuilder.addParameter("appid", appId);
+            }
+            if (Objects.nonNull(maxResult) && maxResult != 0) {
+                uriBuilder.addParameter("count", maxResult.toString());
+            }
+            if (Objects.nonNull(start)) {
+                uriBuilder.addParameter("start", start.toString());
+            }
+            if (StringUtils.isNotBlank(title)) {
+                uriBuilder.addParameter("title", title);
+            }
+            if (StringUtils.isNotBlank(author)) {
+                uriBuilder.addParameter("author", author);
+            }
+            if (StringUtils.isNotBlank(query)) {
+                uriBuilder.addParameter("q", query);
+            }
+            if (Objects.nonNull(year) && year != -1 && year != 0) {
+                uriBuilder.addParameter("year_from", String.valueOf(year));
+                uriBuilder.addParameter("year_to", String.valueOf(year));
+            }
+            Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+            String response = liveImportClient.executeHttpGetRequest(1000, uriBuilder.toString(), params);
+            int url_len = this.url.length() - 1;
+            SAXBuilder saxBuilder = new SAXBuilder();
+            Document document = saxBuilder.build(new StringReader(response));
+            Element root = document.getRootElement();
+            List<Namespace> namespaces = Arrays.asList(
+                 Namespace.getNamespace("ns", "http://purl.org/rss/1.0/"),
+                 Namespace.getNamespace("rdf", "http://www.w3.org/1999/02/22-rdf-syntax-ns#"));
+            XPathExpression<Attribute> xpath = XPathFactory.instance().compile("//ns:item/@rdf:about",
+                    Filters.attribute(), null, namespaces);
+            List<Attribute> recordsList = xpath.evaluate(root);
+            for (Attribute item : recordsList) {
+                String value = item.getValue();
+                if (value.length() > url_len) {
+                    ids.add(value.substring(url_len + 1));
+                }
+            }
+            return ids;
+        } catch (JDOMException | IOException | URISyntaxException e) {
+            log.error(e.getMessage(), e);
+            throw new RuntimeException(e.getMessage(), e);
+        }
+    }
+
+    /**
+     * Returns the total number of CiNii articles returned by a specific query
+     * 
+     * @param appId       Application ID
+     * @param maxResult   The number of search results per page
+     * @param author      Author name
+     * @param title       Article name
+     * @param year        Year of publication
+     * @param start       Start number for the acquired search result list
+     * @param query       Keyword to be searched
+     */
+    private Integer countCiniiElement(String appId, Integer maxResult, String author, String title,
+            Integer year, Integer start, String query) {
+        try {
+            URIBuilder uriBuilder = new URIBuilder(this.urlSearch);
+            uriBuilder.addParameter("format", "rss");
+            uriBuilder.addParameter("appid", appId);
+            if (Objects.nonNull(maxResult) && maxResult != 0) {
+                uriBuilder.addParameter("count", maxResult.toString());
+            }
+            if (Objects.nonNull(start)) {
+                uriBuilder.addParameter("start", start.toString());
+            }
+            if (StringUtils.isNotBlank(title)) {
+                uriBuilder.addParameter("title", title);
+            }
+            if (StringUtils.isNotBlank(author)) {
+                uriBuilder.addParameter("author", author);
+            }
+            if (StringUtils.isNotBlank(query)) {
+                uriBuilder.addParameter("q", query);
+            }
+            if (Objects.nonNull(year) && year != -1 && year != 0) {
+                uriBuilder.addParameter("year_from", String.valueOf(year));
+                uriBuilder.addParameter("year_to", String.valueOf(year));
+            }
+
+            Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+            String response = liveImportClient.executeHttpGetRequest(1000, uriBuilder.toString(), params);
+
+            SAXBuilder saxBuilder = new SAXBuilder();
+            Document document = saxBuilder.build(new StringReader(response));
+            Element root = document.getRootElement();
+            List<Namespace> namespaces = Arrays
+                    .asList(Namespace.getNamespace("opensearch", "http://a9.com/-/spec/opensearch/1.1/"));
+            XPathExpression<Element> xpath = XPathFactory.instance().compile("//opensearch:totalResults",
+                    Filters.element(), null, namespaces);
+            List<Element> nodes = xpath.evaluate(root);
+            if (nodes != null && !nodes.isEmpty()) {
+                return Integer.parseInt(((Element) nodes.get(0)).getText());
+            }
+            return 0;
+        } catch (JDOMException | IOException | URISyntaxException e) {
+            log.error(e.getMessage(), e);
+            throw new RuntimeException(e.getMessage(), e);
+        }
+    }
+
+    private MetadatumDTO createIdentifier(String id) {
+        MetadatumDTO metadatumDTO = new MetadatumDTO();
+        metadatumDTO.setSchema("dc");
+        metadatumDTO.setElement("identifier");
+        metadatumDTO.setQualifier("other");
+        metadatumDTO.setValue(id);
+        return metadatumDTO;
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/liveimportclient/service/LiveImportClientImpl.java

@@ -74,7 +74,8 @@ public class LiveImportClientImpl implements LiveImportClient {
 
             HttpResponse httpResponse = httpClient.execute(method);
             if (isNotSuccessfull(httpResponse)) {
-                throw new RuntimeException();
+                throw new RuntimeException("The request failed with: " + getStatusCode(httpResponse) + " code, reason= "
+                                           + httpResponse.getStatusLine().getReasonPhrase());
             }
             InputStream inputStream = httpResponse.getEntity().getContent();
             return IOUtils.toString(inputStream, Charset.defaultCharset());

dspace-api/src/main/java/org/dspace/importer/external/metadatamapping/contributor/AuthorMetadataContributor.java

@@ -0,0 +1,173 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.metadatamapping.contributor;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+
+import org.apache.commons.lang.StringUtils;
+import org.dspace.importer.external.metadatamapping.MetadataFieldConfig;
+import org.dspace.importer.external.metadatamapping.MetadatumDTO;
+import org.jaxen.JaxenException;
+import org.jdom2.Element;
+import org.jdom2.Namespace;
+
+/**
+ * Scopus specific implementation of {@link MetadataContributor}
+ * Responsible for generating the ScopusID, orcid, author name and affiliationID
+ * from the retrieved item.
+ *
+ * @author Boychuk Mykhaylo (boychuk.mykhaylo at 4science dot it)
+ */
+public class AuthorMetadataContributor extends SimpleXpathMetadatumContributor {
+
+    private static final Namespace NAMESPACE = Namespace.getNamespace("http://www.w3.org/2005/Atom");
+
+    private MetadataFieldConfig orcid;
+    private MetadataFieldConfig scopusId;
+    private MetadataFieldConfig authname;
+    private MetadataFieldConfig affiliation;
+
+    private Map<String, String> affId2affName = new HashMap<String, String>();
+
+    /**
+     * Retrieve the metadata associated with the given object.
+     * Depending on the retrieved node (using the query),
+     * different types of values will be added to the MetadatumDTO list.
+     *
+     * @param element    A class to retrieve metadata from.
+     * @return           A collection of import records. Only the ScopusID, orcid, author name and affiliation
+     *                     of the found records may be put in the record.
+     */
+    @Override
+    public Collection<MetadatumDTO> contributeMetadata(Element element) {
+        List<MetadatumDTO> values = new LinkedList<>();
+        List<MetadatumDTO> metadatums = null;
+        fillAffillation(element);
+        try {
+            List<Element> nodes = element.getChildren("author", NAMESPACE);
+            for (Element el : nodes) {
+                metadatums = getMetadataOfAuthors(el);
+                if (Objects.nonNull(metadatums)) {
+                    for (MetadatumDTO metadatum : metadatums) {
+                        values.add(metadatum);
+                    }
+                }
+            }
+        } catch (JaxenException e) {
+            throw new RuntimeException(e);
+        }
+        return values;
+    }
+
+    /**
+     * Retrieve the the ScopusID, orcid, author name and affiliationID
+     * metadata associated with the given element object.
+     * If the value retrieved from the element is empty
+     * it is set PLACEHOLDER_PARENT_METADATA_VALUE
+     * 
+     * @param element           A class to retrieve metadata from
+     * @throws JaxenException   If Xpath evaluation failed
+     */
+    private List<MetadatumDTO> getMetadataOfAuthors(Element element) throws JaxenException {
+        List<MetadatumDTO> metadatums = new ArrayList<MetadatumDTO>();
+        Element authname = element.getChild("authname", NAMESPACE);
+        Element scopusId = element.getChild("authid", NAMESPACE);
+        Element orcid = element.getChild("orcid", NAMESPACE);
+        Element afid = element.getChild("afid", NAMESPACE);
+
+        addMetadatum(metadatums, getMetadata(getElementValue(authname), this.authname));
+        addMetadatum(metadatums, getMetadata(getElementValue(scopusId), this.scopusId));
+        addMetadatum(metadatums, getMetadata(getElementValue(orcid), this.orcid));
+        addMetadatum(metadatums, getMetadata(StringUtils.isNotBlank(afid.getValue())
+                                 ? this.affId2affName.get(afid.getValue()) : null, this.affiliation));
+        return metadatums;
+    }
+
+    private void addMetadatum(List<MetadatumDTO> list, MetadatumDTO metadatum) {
+        if (Objects.nonNull(metadatum)) {
+            list.add(metadatum);
+        }
+    }
+
+    private String getElementValue(Element element) {
+        if (Objects.nonNull(element)) {
+            return element.getValue();
+        }
+        return StringUtils.EMPTY;
+    }
+
+    private MetadatumDTO getMetadata(String value, MetadataFieldConfig metadaConfig) {
+        if (StringUtils.isBlank(value)) {
+            return null;
+        }
+        MetadatumDTO metadata = new MetadatumDTO();
+        metadata.setElement(metadaConfig.getElement());
+        metadata.setQualifier(metadaConfig.getQualifier());
+        metadata.setSchema(metadaConfig.getSchema());
+        metadata.setValue(value);
+        return metadata;
+    }
+
+    private void fillAffillation(Element element) {
+        try {
+            List<Element> nodes = element.getChildren("affiliation", NAMESPACE);
+            for (Element el : nodes) {
+                fillAffiliation2Name(el);
+            }
+        } catch (JaxenException e) {
+            throw new RuntimeException(e);
+        }
+    }
+
+    private void fillAffiliation2Name(Element element) throws JaxenException {
+        Element affilationName = element.getChild("affilname", NAMESPACE);
+        Element affilationId = element.getChild("afid", NAMESPACE);
+        if (Objects.nonNull(affilationId) && Objects.nonNull(affilationName)) {
+            affId2affName.put(affilationId.getValue(), affilationName.getValue());
+        }
+    }
+
+    public MetadataFieldConfig getAuthname() {
+        return authname;
+    }
+
+    public void setAuthname(MetadataFieldConfig authname) {
+        this.authname = authname;
+    }
+
+    public MetadataFieldConfig getOrcid() {
+        return orcid;
+    }
+
+    public void setOrcid(MetadataFieldConfig orcid) {
+        this.orcid = orcid;
+    }
+
+    public MetadataFieldConfig getScopusId() {
+        return scopusId;
+    }
+
+    public void setScopusId(MetadataFieldConfig scopusId) {
+        this.scopusId = scopusId;
+    }
+
+    public MetadataFieldConfig getAffiliation() {
+        return affiliation;
+    }
+
+    public void setAffiliation(MetadataFieldConfig affiliation) {
+        this.affiliation = affiliation;
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/metadatamapping/contributor/PageRangeXPathMetadataContributor.java

@@ -0,0 +1,110 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.metadatamapping.contributor;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Objects;
+
+import org.apache.commons.lang3.StringUtils;
+import org.dspace.importer.external.metadatamapping.MetadataFieldConfig;
+import org.dspace.importer.external.metadatamapping.MetadatumDTO;
+import org.jdom2.Element;
+import org.jdom2.Namespace;
+
+/**
+ * Scopus specific implementation of {@link MetadataContributor}
+ * Responsible for generating the Scopus startPage and endPage from the retrieved item.
+ * 
+ * @author Boychuk Mykhaylo (boychuk.mykhaylo at 4science.com)
+ */
+public class PageRangeXPathMetadataContributor extends SimpleXpathMetadatumContributor {
+
+    private MetadataFieldConfig startPageMetadata;
+
+    private MetadataFieldConfig endPageMetadata;
+
+    /**
+     * Retrieve the metadata associated with the given Element object.
+     * Depending on the retrieved node (using the query),
+     * StartPage and EndPage values will be added to the MetadatumDTO list
+     *
+     * @param el    A class to retrieve metadata from.
+     * @return      A collection of import records. Only the StartPage and EndPage
+     *                of the found records may be put in the record.
+     */
+    @Override
+    public Collection<MetadatumDTO> contributeMetadata(Element el) {
+        List<MetadatumDTO> values = new LinkedList<>();
+        List<MetadatumDTO> metadatums = null;
+        for (String ns : prefixToNamespaceMapping.keySet()) {
+            List<Element> nodes = el.getChildren(query, Namespace.getNamespace(ns));
+            for (Element element : nodes) {
+                metadatums = getMetadatum(element.getValue());
+                if (Objects.nonNull(metadatums)) {
+                    for (MetadatumDTO metadatum : metadatums) {
+                        values.add(metadatum);
+                    }
+                }
+            }
+        }
+        return values;
+    }
+
+    private  List<MetadatumDTO> getMetadatum(String value) {
+        List<MetadatumDTO> metadatums = new ArrayList<MetadatumDTO>();
+        if (StringUtils.isBlank(value)) {
+            return null;
+        }
+        String [] range = value.split("-");
+        if (range.length == 2) {
+            metadatums.add(setStartPage(range));
+            metadatums.add(setEndPage(range));
+        } else if (range.length != 0) {
+            metadatums.add(setStartPage(range));
+        }
+        return metadatums;
+    }
+
+    private MetadatumDTO setEndPage(String[] range) {
+        MetadatumDTO endPage = new MetadatumDTO();
+        endPage.setValue(range[1]);
+        endPage.setElement(endPageMetadata.getElement());
+        endPage.setQualifier(endPageMetadata.getQualifier());
+        endPage.setSchema(endPageMetadata.getSchema());
+        return endPage;
+    }
+
+    private MetadatumDTO setStartPage(String[] range) {
+        MetadatumDTO startPage = new MetadatumDTO();
+        startPage.setValue(range[0]);
+        startPage.setElement(startPageMetadata.getElement());
+        startPage.setQualifier(startPageMetadata.getQualifier());
+        startPage.setSchema(startPageMetadata.getSchema());
+        return startPage;
+    }
+
+    public MetadataFieldConfig getStartPageMetadata() {
+        return startPageMetadata;
+    }
+
+    public void setStartPageMetadata(MetadataFieldConfig startPageMetadata) {
+        this.startPageMetadata = startPageMetadata;
+    }
+
+    public MetadataFieldConfig getEndPageMetadata() {
+        return endPageMetadata;
+    }
+
+    public void setEndPageMetadata(MetadataFieldConfig endPageMetadata) {
+        this.endPageMetadata = endPageMetadata;
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/metadatamapping/contributor/ReplaceCharacterXPathMetadataContributor.java

@@ -0,0 +1,66 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.metadatamapping.contributor;
+
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Objects;
+
+import org.dspace.importer.external.metadatamapping.MetadataFieldConfig;
+import org.dspace.importer.external.metadatamapping.MetadatumDTO;
+import org.jdom2.Element;
+import org.jdom2.Namespace;
+
+/**
+ * This contributor replace specific character in the metadata value.
+ * It is useful for some provider (e.g. Scopus) which use containing "/" character.
+ * Actually, "/" will never encode by framework in URL building. In the same ways, if we
+ * encode "/" -> %2F, it will be encoded by framework and become %252F.
+ * 
+ * @author Boychuk Mykhaylo (boychuk.mykhaylo at 4science.com)
+ */
+public class ReplaceCharacterXPathMetadataContributor extends SimpleXpathMetadatumContributor {
+
+    private char characterToBeReplaced;
+
+    private char characterToReplaceWith;
+
+    @Override
+    public Collection<MetadatumDTO> contributeMetadata(Element element) {
+        List<MetadatumDTO> values = new LinkedList<>();
+        for (String ns : prefixToNamespaceMapping.keySet()) {
+            List<Element> nodes = element.getChildren(query, Namespace.getNamespace(ns));
+            for (Element el : nodes) {
+                values.add(getMetadatum(field, el.getValue()));
+            }
+        }
+        return values;
+    }
+
+    private MetadatumDTO getMetadatum(MetadataFieldConfig field, String value) {
+        MetadatumDTO dcValue = new MetadatumDTO();
+        if (Objects.isNull(field)) {
+            return null;
+        }
+        dcValue.setValue(value == null ? null : value.replace(characterToBeReplaced, characterToReplaceWith));
+        dcValue.setElement(field.getElement());
+        dcValue.setQualifier(field.getQualifier());
+        dcValue.setSchema(field.getSchema());
+        return dcValue;
+    }
+
+    public void setCharacterToBeReplaced(int characterToBeReplaced) {
+        this.characterToBeReplaced = (char)characterToBeReplaced;
+    }
+
+    public void setCharacterToReplaceWith(int characterToReplaceWith) {
+        this.characterToReplaceWith = (char)characterToReplaceWith;
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/metadatamapping/contributor/SimpleConcatContributor.java

@@ -0,0 +1,65 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.metadatamapping.contributor;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.dspace.importer.external.metadatamapping.MetadatumDTO;
+import org.jdom2.Element;
+import org.jdom2.Namespace;
+import org.jdom2.filter.Filters;
+import org.jdom2.xpath.XPathExpression;
+import org.jdom2.xpath.XPathFactory;
+
+/**
+ * This contributor is able to concat multi value.
+ * Given a certain path, if it contains several nodes,
+ * the values of nodes will be concatenated into a single one.
+ * The concrete example we can see in the file wos-responce.xml in the <abstract_text> node,
+ * which may contain several <p> paragraphs,
+ * this Contributor allows concatenating all <p> paragraphs. to obtain a single one.
+ * 
+ * @author Boychuk Mykhaylo (boychuk.mykhaylo at 4Science dot it)
+ */
+public class SimpleConcatContributor extends SimpleXpathMetadatumContributor {
+
+    private final static Logger log = LogManager.getLogger();
+
+    @Override
+    public Collection<MetadatumDTO> contributeMetadata(Element t) {
+        List<MetadatumDTO> values = new LinkedList<>();
+        StringBuilder text = new StringBuilder();
+        List<Namespace> namespaces = new ArrayList<Namespace>();
+        for (String ns : prefixToNamespaceMapping.keySet()) {
+            namespaces.add(Namespace.getNamespace(prefixToNamespaceMapping.get(ns), ns));
+        }
+        XPathExpression<Object> xpath = XPathFactory.instance().compile(query, Filters.fpassthrough(), null,namespaces);
+        List<Object> nodes = xpath.evaluate(t);
+        for (Object el : nodes) {
+            if (el instanceof Element) {
+                Element element = (Element) el;
+                if (StringUtils.isNotBlank(element.getText())) {
+                    text.append(element.getText());
+                }
+            } else {
+                log.warn("node of type: " + el.getClass());
+            }
+        }
+        if (StringUtils.isNotBlank(text.toString())) {
+            values.add(metadataFieldMapping.toDCValue(field, text.toString()));
+        }
+        return values;
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/metadatamapping/contributor/SimpleMultiplePathContributor.java

@@ -0,0 +1,75 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.metadatamapping.contributor;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.dspace.importer.external.metadatamapping.MetadatumDTO;
+import org.jdom2.Element;
+import org.jdom2.Namespace;
+import org.jdom2.filter.Filters;
+import org.jdom2.xpath.XPathExpression;
+import org.jdom2.xpath.XPathFactory;
+
+/**
+ * Web of Science specific implementation of {@link MetadataContributor}.
+ * This contributor can perform research on multi-paths.
+ * For example, to populate the subject metadata, in the Web of Science response
+ * the values are contained in different paths,
+ * so this Contributor allows you to collect the values by configuring the paths in the paths list.
+ * 
+ * @author Boychuk Mykhaylo (boychuk.mykhaylo at 4Science dot it)
+ */
+public class SimpleMultiplePathContributor extends SimpleXpathMetadatumContributor {
+
+    private final static Logger log = LogManager.getLogger();
+
+    private List<String> paths;
+
+    public SimpleMultiplePathContributor() {}
+
+    public SimpleMultiplePathContributor(List<String> paths) {
+        this.paths = paths;
+    }
+
+    @Override
+    public Collection<MetadatumDTO> contributeMetadata(Element t) {
+        List<MetadatumDTO> values = new LinkedList<>();
+        for (String path : this.paths) {
+            List<Namespace> namespaces = new ArrayList<Namespace>();
+            for (String ns : prefixToNamespaceMapping.keySet()) {
+                namespaces.add(Namespace.getNamespace(prefixToNamespaceMapping.get(ns), ns));
+            }
+            XPathExpression<Object> xpath = XPathFactory.instance().compile(path, Filters.fpassthrough(), null,
+                    namespaces);
+            List<Object> nodes = xpath.evaluate(t);
+            for (Object el : nodes) {
+                if (el instanceof Element) {
+                    values.add(metadataFieldMapping.toDCValue(field, ((Element) el).getText()));
+                } else {
+                    log.warn("node of type: " + el.getClass());
+                }
+            }
+        }
+        return values;
+    }
+
+    public List<String> getPaths() {
+        return paths;
+    }
+
+    public void setPaths(List<String> paths) {
+        this.paths = paths;
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/metadatamapping/contributor/SimpleXpathMetadatumAndAttributeContributor.java

@@ -0,0 +1,69 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.metadatamapping.contributor;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.dspace.importer.external.metadatamapping.MetadatumDTO;
+import org.jdom2.Element;
+import org.jdom2.Namespace;
+import org.jdom2.filter.Filters;
+import org.jdom2.xpath.XPathExpression;
+import org.jdom2.xpath.XPathFactory;
+
+/**
+ * This contributor checks for each node returned for the supplied path
+ * if node contains supplied attribute - the value of the current node is taken if exist.
+ * 
+ * @author Boychuk Mykhaylo (boychuk.mykhaylo at 4Science dot com)
+ */
+public class SimpleXpathMetadatumAndAttributeContributor extends SimpleXpathMetadatumContributor {
+
+    private final static Logger log = LogManager.getLogger();
+
+    private String attribute;
+
+    @Override
+    public Collection<MetadatumDTO> contributeMetadata(Element t) {
+        List<MetadatumDTO> values = new LinkedList<>();
+        List<Namespace> namespaces = new ArrayList<Namespace>();
+        for (String ns : prefixToNamespaceMapping.keySet()) {
+            namespaces.add(Namespace.getNamespace(prefixToNamespaceMapping.get(ns), ns));
+        }
+        XPathExpression<Object> xpath = XPathFactory.instance().compile(query, Filters.fpassthrough(), null,
+                namespaces);
+        List<Object> nodes = xpath.evaluate(t);
+        for (Object el : nodes) {
+            if (el instanceof Element) {
+                Element element = (Element) el;
+                String attributeValue = element.getAttributeValue(this.attribute);
+                if (StringUtils.isNotBlank(attributeValue)) {
+                    values.add(metadataFieldMapping.toDCValue(this.field, attributeValue));
+                }
+            } else {
+                log.warn("node of type: " + el.getClass());
+            }
+        }
+        return values;
+    }
+
+    public String getAttribute() {
+        return attribute;
+    }
+
+    public void setAttribute(String attribute) {
+        this.attribute = attribute;
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/metadatamapping/contributor/SimpleXpathMetadatumContributor.java

@@ -34,10 +34,10 @@ import org.springframework.beans.factory.annotation.Autowired;
  */
 public class SimpleXpathMetadatumContributor implements MetadataContributor<Element> {
 
-    protected MetadataFieldConfig field;
-
     private static final Logger log = org.apache.logging.log4j.LogManager.getLogger();
 
+    protected MetadataFieldConfig field;
+
     /**
      * Return prefixToNamespaceMapping
      *
@@ -171,4 +171,5 @@ public class SimpleXpathMetadatumContributor implements MetadataContributor<Elem
         }
         return values;
     }
+
 }

dspace-api/src/main/java/org/dspace/importer/external/metadatamapping/contributor/WosAttribute2ValueContributor.java

@@ -0,0 +1,160 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.metadatamapping.contributor;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import javax.annotation.Resource;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.dspace.importer.external.metadatamapping.MetadataFieldConfig;
+import org.dspace.importer.external.metadatamapping.MetadataFieldMapping;
+import org.dspace.importer.external.metadatamapping.MetadatumDTO;
+import org.jdom2.Element;
+import org.jdom2.Namespace;
+import org.jdom2.filter.Filters;
+import org.jdom2.xpath.XPathExpression;
+import org.jdom2.xpath.XPathFactory;
+
+/**
+ * Web Of Science specific implementation of {@link MetadataContributor}
+ * This contributor checks for each node returned for the given path if the node contains "this.attribute"
+ * and then checks if the attribute value is one of the values configured
+ * in the "this.attributeValue2metadata" map, if the value of the current known is taken.
+ * If "this.firstChild" is true, it takes the value of the child of the known.
+ * The mapping and configuration of this class can be found in the following wos-integration.xml file.
+ *
+ * @author Boychuk Mykhaylo (boychuk.mykhaylo at 4Science dot it)
+ */
+public class WosAttribute2ValueContributor implements MetadataContributor<Element> {
+
+    private final static Logger log = LogManager.getLogger();
+
+    private String query;
+
+    private String attribute;
+
+    private boolean firstChild;
+
+    private String childName;
+
+    private Map<String, String> prefixToNamespaceMapping;
+
+    private Map<String, MetadataFieldConfig> attributeValue2metadata;
+
+    private MetadataFieldMapping<Element, MetadataContributor<Element>> metadataFieldMapping;
+
+    public WosAttribute2ValueContributor() {}
+
+    public WosAttribute2ValueContributor(String query,
+                          Map<String, String> prefixToNamespaceMapping,
+                          Map<String, MetadataFieldConfig> attributeValue2metadata) {
+        this.query = query;
+        this.prefixToNamespaceMapping = prefixToNamespaceMapping;
+        this.attributeValue2metadata = attributeValue2metadata;
+    }
+
+    @Override
+    public Collection<MetadatumDTO> contributeMetadata(Element t) {
+        List<MetadatumDTO> values = new LinkedList<>();
+        List<Namespace> namespaces = new ArrayList<Namespace>();
+        for (String ns : prefixToNamespaceMapping.keySet()) {
+            namespaces.add(Namespace.getNamespace(prefixToNamespaceMapping.get(ns), ns));
+        }
+        XPathExpression<Object> xpath = XPathFactory.instance().compile(query, Filters.fpassthrough(), null,
+                namespaces);
+        List<Object> nodes = xpath.evaluate(t);
+        for (Object el : nodes) {
+            if (el instanceof Element) {
+                Element element = (Element) el;
+                String attributeValue = element.getAttributeValue(this.attribute);
+                setField(attributeValue, element, values);
+            } else {
+                log.warn("node of type: " + el.getClass());
+            }
+        }
+        return values;
+    }
+
+    private void setField(String attributeValue, Element el, List<MetadatumDTO> values) {
+        for (String id : attributeValue2metadata.keySet()) {
+            if (StringUtils.equals(id, attributeValue)) {
+                if (this.firstChild) {
+                    String value = el.getChild(this.childName).getValue();
+                    values.add(metadataFieldMapping.toDCValue(attributeValue2metadata.get(id), value));
+                } else {
+                    values.add(metadataFieldMapping.toDCValue(attributeValue2metadata.get(id), el.getText()));
+                }
+            }
+        }
+    }
+
+    public MetadataFieldMapping<Element, MetadataContributor<Element>> getMetadataFieldMapping() {
+        return metadataFieldMapping;
+    }
+
+    public void setMetadataFieldMapping(
+        MetadataFieldMapping<Element, MetadataContributor<Element>> metadataFieldMapping) {
+        this.metadataFieldMapping = metadataFieldMapping;
+    }
+
+    @Resource(name = "isiFullprefixMapping")
+    public void setPrefixToNamespaceMapping(Map<String, String> prefixToNamespaceMapping) {
+        this.prefixToNamespaceMapping = prefixToNamespaceMapping;
+    }
+
+    public Map<String, String> getPrefixToNamespaceMapping() {
+        return prefixToNamespaceMapping;
+    }
+
+    public String getAttribute() {
+        return attribute;
+    }
+
+    public void setAttribute(String attribute) {
+        this.attribute = attribute;
+    }
+
+    public Map<String, MetadataFieldConfig> getAttributeValue2metadata() {
+        return attributeValue2metadata;
+    }
+
+    public void setAttributeValue2metadata(Map<String, MetadataFieldConfig> attributeValue2metadata) {
+        this.attributeValue2metadata = attributeValue2metadata;
+    }
+
+    public String getQuery() {
+        return query;
+    }
+
+    public void setQuery(String query) {
+        this.query = query;
+    }
+
+    public boolean isFirstChild() {
+        return firstChild;
+    }
+
+    public void setFirstChild(boolean firstChild) {
+        this.firstChild = firstChild;
+    }
+
+    public String getChildName() {
+        return childName;
+    }
+
+    public void setChildName(String childName) {
+        this.childName = childName;
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/metadatamapping/contributor/WosIdentifierContributor.java

@@ -0,0 +1,71 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.metadatamapping.contributor;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+import org.apache.commons.lang3.StringUtils;
+import org.dspace.importer.external.metadatamapping.MetadataFieldConfig;
+import org.dspace.importer.external.metadatamapping.MetadatumDTO;
+import org.jdom2.Element;
+import org.jdom2.Namespace;
+import org.jdom2.filter.Filters;
+import org.jdom2.xpath.XPathExpression;
+import org.jdom2.xpath.XPathFactory;
+
+/**
+ * This contributor can retrieve the identifiers
+ * configured in "this.identifire2field" from the Web of Science response.
+ * The mapping and configuration of this class can be found in the following wos-integration.xml file.
+ * 
+ * @author Boychuk Mykhaylo (boychuk.mykhaylo at 4Science dot it)
+ */
+public class WosIdentifierContributor extends SimpleXpathMetadatumContributor {
+
+    protected Map<String, MetadataFieldConfig> identifier2field;
+
+    @Override
+    public Collection<MetadatumDTO> contributeMetadata(Element element) {
+        List<MetadatumDTO> values = new LinkedList<>();
+        List<Namespace> namespaces = new ArrayList<>();
+        for (String ns : prefixToNamespaceMapping.keySet()) {
+            namespaces.add(Namespace.getNamespace(prefixToNamespaceMapping.get(ns), ns));
+        }
+        XPathExpression<Element> xpath =
+                XPathFactory.instance().compile(query, Filters.element(), null, namespaces);
+
+        List<Element> nodes = xpath.evaluate(element);
+        for (Element el : nodes) {
+            String type = el.getAttributeValue("type");
+            setIdentyfier(type, el, values);
+        }
+        return values;
+    }
+
+    private void setIdentyfier(String type, Element el, List<MetadatumDTO> values) {
+        for (String id : identifier2field.keySet()) {
+            if (StringUtils.equals(id, type)) {
+                String value = el.getAttributeValue("value");
+                values.add(metadataFieldMapping.toDCValue(identifier2field.get(id), value));
+            }
+        }
+    }
+
+    public Map<String, MetadataFieldConfig> getIdentifier2field() {
+        return identifier2field;
+    }
+
+    public void setIdentifier2field(Map<String, MetadataFieldConfig> identifier2field) {
+        this.identifier2field = identifier2field;
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/metadatamapping/contributor/WosIdentifierRidContributor.java

@@ -0,0 +1,68 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.metadatamapping.contributor;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Objects;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.dspace.importer.external.metadatamapping.MetadatumDTO;
+import org.jdom2.Element;
+import org.jdom2.Namespace;
+import org.jdom2.filter.Filters;
+import org.jdom2.xpath.XPathExpression;
+import org.jdom2.xpath.XPathFactory;
+
+/**
+ * Web Of Science specific implementation of {@link MetadataContributor}
+ * 
+ * @author Boychuk Mykhaylo (boychuk.mykhaylo at 4Science dot it)
+ */
+public class WosIdentifierRidContributor extends SimpleXpathMetadatumContributor {
+
+    private final static Logger log = LogManager.getLogger();
+
+    @Override
+    public Collection<MetadatumDTO> contributeMetadata(Element t) {
+        List<MetadatumDTO> values = new LinkedList<>();
+        List<Namespace> namespaces = new ArrayList<Namespace>();
+        for (String ns : prefixToNamespaceMapping.keySet()) {
+            namespaces.add(Namespace.getNamespace(prefixToNamespaceMapping.get(ns), ns));
+        }
+        XPathExpression<Object> xpath = XPathFactory.instance().compile(query, Filters.fpassthrough(), null,
+                namespaces);
+        List<Object> nodes = xpath.evaluate(t);
+        for (Object el : nodes) {
+            if (el instanceof Element) {
+                Element element = ((Element) el).getChild("name");
+                if (Objects.nonNull(element)) {
+                    String type = element.getAttributeValue("role");
+                    setIdentyfier(type, element, values);
+                }
+            } else {
+                log.warn("node of type: " + el.getClass());
+            }
+        }
+        return values;
+    }
+
+    private void setIdentyfier(String type, Element el, List<MetadatumDTO> values) {
+        if (StringUtils.equals("researcher_id", type)) {
+            String value = el.getAttributeValue("r_id");
+            if (StringUtils.isNotBlank(value)) {
+                values.add(metadataFieldMapping.toDCValue(this.field, value));
+            }
+        }
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/pubmed/service/PubmedImportMetadataSourceServiceImpl.java

@@ -14,23 +14,23 @@ import java.io.InputStreamReader;
 import java.io.Reader;
 import java.io.StringReader;
 import java.util.Collection;
+import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
+import java.util.Map;
+import java.util.Objects;
 import java.util.concurrent.Callable;
-import javax.ws.rs.client.Client;
-import javax.ws.rs.client.ClientBuilder;
-import javax.ws.rs.client.Invocation;
-import javax.ws.rs.client.WebTarget;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
 
 import com.google.common.io.CharStreams;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.http.client.utils.URIBuilder;
 import org.dspace.content.Item;
 import org.dspace.importer.external.datamodel.ImportRecord;
 import org.dspace.importer.external.datamodel.Query;
 import org.dspace.importer.external.exception.FileMultipleOccurencesException;
 import org.dspace.importer.external.exception.FileSourceException;
 import org.dspace.importer.external.exception.MetadataSourceException;
+import org.dspace.importer.external.liveimportclient.service.LiveImportClient;
 import org.dspace.importer.external.service.AbstractImportMetadataSourceService;
 import org.dspace.importer.external.service.components.FileSource;
 import org.dspace.importer.external.service.components.QuerySource;
@@ -41,6 +41,7 @@ import org.jdom2.filter.Filters;
 import org.jdom2.input.SAXBuilder;
 import org.jdom2.xpath.XPathExpression;
 import org.jdom2.xpath.XPathFactory;
+import org.springframework.beans.factory.annotation.Autowired;
 
 /**
  * Implements a data source for querying PubMed Central
@@ -51,13 +52,16 @@ import org.jdom2.xpath.XPathFactory;
 public class PubmedImportMetadataSourceServiceImpl extends AbstractImportMetadataSourceService<Element>
     implements QuerySource, FileSource {
 
-    private String baseAddress;
+    private String urlFetch;
+    private String urlSearch;
 
-    // it is protected so that subclass can mock it for testing
-    protected WebTarget pubmedWebTarget;
+    private int attempt = 3;
 
     private List<String> supportedExtensions;
 
+    @Autowired
+    private LiveImportClient liveImportClient;
+
     /**
      * Set the file extensions supported by this metadata service
      * 
@@ -187,29 +191,7 @@ public class PubmedImportMetadataSourceServiceImpl extends AbstractImportMetadat
      * @throws Exception on generic exception
      */
     @Override
-    public void init() throws Exception {
-        Client client = ClientBuilder.newClient();
-        WebTarget webTarget = client.target(baseAddress);
-        pubmedWebTarget = webTarget.queryParam("db", "pubmed");
-    }
-
-    /**
-     * Return the baseAddress set to this object
-     *
-     * @return The String object that represents the baseAddress of this object
-     */
-    public String getBaseAddress() {
-        return baseAddress;
-    }
-
-    /**
-     * Set the baseAddress to this object
-     *
-     * @param baseAddress The String object that represents the baseAddress of this object
-     */
-    public void setBaseAddress(String baseAddress) {
-        this.baseAddress = baseAddress;
-    }
+    public void init() throws Exception {}
 
     private class GetNbRecords implements Callable<Integer> {
 
@@ -226,23 +208,26 @@ public class PubmedImportMetadataSourceServiceImpl extends AbstractImportMetadat
 
         @Override
         public Integer call() throws Exception {
-            WebTarget getRecordIdsTarget = pubmedWebTarget
-                .queryParam("term", query.getParameterAsClass("query", String.class));
-
-            getRecordIdsTarget = getRecordIdsTarget.path("esearch.fcgi");
-
-            Invocation.Builder invocationBuilder = getRecordIdsTarget.request(MediaType.TEXT_PLAIN_TYPE);
-
-            Response response = invocationBuilder.get();
-
-            String responseString = response.readEntity(String.class);
-
-            String count = getSingleElementValue(responseString, "Count");
-
-            return Integer.parseInt(count);
-        }
+            URIBuilder uriBuilder = new URIBuilder(urlSearch);
+            uriBuilder.addParameter("db", "pubmed");
+            uriBuilder.addParameter("term", query.getParameterAsClass("query", String.class));
+            Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+            String response = StringUtils.EMPTY;
+            int countAttempt = 0;
+            while (StringUtils.isBlank(response) && countAttempt <= attempt) {
+                countAttempt++;
+                response = liveImportClient.executeHttpGetRequest(1000, uriBuilder.toString(), params);
             }
 
+            if (StringUtils.isBlank(response)) {
+                throw new RuntimeException("After " + attempt
+                        + " attempts to contact the PubMed service, a correct answer could not be received."
+                        + " The request was made with this URL:" + uriBuilder.toString());
+            }
+
+            return Integer.parseInt(getSingleElementValue(response, "Count"));
+        }
+    }
 
     private String getSingleElementValue(String src, String elementName) {
         String value = null;
@@ -286,41 +271,61 @@ public class PubmedImportMetadataSourceServiceImpl extends AbstractImportMetadat
             Integer start = query.getParameterAsClass("start", Integer.class);
             Integer count = query.getParameterAsClass("count", Integer.class);
 
-            if (count == null || count < 0) {
+            if (Objects.isNull(count) || count < 0) {
                 count = 10;
             }
 
-            if (start == null || start < 0) {
+            if (Objects.isNull(start) || start < 0) {
                 start = 0;
             }
 
             List<ImportRecord> records = new LinkedList<ImportRecord>();
 
-            WebTarget getRecordIdsTarget = pubmedWebTarget.queryParam("term", queryString);
-            getRecordIdsTarget = getRecordIdsTarget.queryParam("retstart", start);
-            getRecordIdsTarget = getRecordIdsTarget.queryParam("retmax", count);
-            getRecordIdsTarget = getRecordIdsTarget.queryParam("usehistory", "y");
-            getRecordIdsTarget = getRecordIdsTarget.path("esearch.fcgi");
+            URIBuilder uriBuilder = new URIBuilder(urlSearch);
+            uriBuilder.addParameter("db", "pubmed");
+            uriBuilder.addParameter("retstart", start.toString());
+            uriBuilder.addParameter("retmax", count.toString());
+            uriBuilder.addParameter("usehistory", "y");
+            uriBuilder.addParameter("term", queryString);
+            Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+            String response = StringUtils.EMPTY;
+            int countAttempt = 0;
+            while (StringUtils.isBlank(response) && countAttempt <= attempt) {
+                countAttempt++;
+                response = liveImportClient.executeHttpGetRequest(1000, uriBuilder.toString(), params);
+            }
 
-            Invocation.Builder invocationBuilder = getRecordIdsTarget.request(MediaType.TEXT_PLAIN_TYPE);
+            if (StringUtils.isBlank(response)) {
+                throw new RuntimeException("After " + attempt
+                        + " attempts to contact the PubMed service, a correct answer could not be received."
+                        + " The request was made with this URL:" + uriBuilder.toString());
+            }
 
-            Response response = invocationBuilder.get();
-            String responseString = response.readEntity(String.class);
+            String queryKey = getSingleElementValue(response, "QueryKey");
+            String webEnv = getSingleElementValue(response, "WebEnv");
 
-            String queryKey = getSingleElementValue(responseString, "QueryKey");
-            String webEnv = getSingleElementValue(responseString, "WebEnv");
+            URIBuilder uriBuilder2 = new URIBuilder(urlFetch);
+            uriBuilder2.addParameter("db", "pubmed");
+            uriBuilder2.addParameter("retstart", start.toString());
+            uriBuilder2.addParameter("retmax", count.toString());
+            uriBuilder2.addParameter("WebEnv", webEnv);
+            uriBuilder2.addParameter("query_key", queryKey);
+            uriBuilder2.addParameter("retmode", "xml");
+            Map<String, Map<String, String>> params2 = new HashMap<String, Map<String,String>>();
+            String response2 = StringUtils.EMPTY;
+            countAttempt = 0;
+            while (StringUtils.isBlank(response2) && countAttempt <= attempt) {
+                countAttempt++;
+                response2 = liveImportClient.executeHttpGetRequest(1000, uriBuilder2.toString(), params2);
+            }
 
-            WebTarget getRecordsTarget = pubmedWebTarget.queryParam("WebEnv", webEnv);
-            getRecordsTarget = getRecordsTarget.queryParam("query_key", queryKey);
-            getRecordsTarget = getRecordsTarget.queryParam("retmode", "xml");
-            getRecordsTarget = getRecordsTarget.path("efetch.fcgi");
-            getRecordsTarget = getRecordsTarget.queryParam("retmax", count);
-            getRecordsTarget = getRecordsTarget.queryParam("retstart", start);
+            if (StringUtils.isBlank(response2)) {
+                throw new RuntimeException("After " + attempt
+                        + " attempts to contact the PubMed service, a correct answer could not be received."
+                        + " The request was made with this URL:" + uriBuilder2.toString());
+            }
 
-            invocationBuilder = getRecordsTarget.request(MediaType.TEXT_PLAIN_TYPE);
-            response = invocationBuilder.get();
-
-            List<Element> elements = splitToRecords(response.readEntity(String.class));
+            List<Element> elements = splitToRecords(response2);
 
             for (Element record : elements) {
                 records.add(transformSourceRecords(record));
@@ -361,23 +366,29 @@ public class PubmedImportMetadataSourceServiceImpl extends AbstractImportMetadat
 
         @Override
         public ImportRecord call() throws Exception {
-            String id = query.getParameterAsClass("id", String.class);
 
-            WebTarget getRecordTarget = pubmedWebTarget.queryParam("id", id);
-            getRecordTarget = getRecordTarget.queryParam("retmode", "xml");
-            getRecordTarget = getRecordTarget.path("efetch.fcgi");
+            URIBuilder uriBuilder = new URIBuilder(urlFetch);
+            uriBuilder.addParameter("db", "pubmed");
+            uriBuilder.addParameter("retmode", "xml");
+            uriBuilder.addParameter("id", query.getParameterAsClass("id", String.class));
 
-            Invocation.Builder invocationBuilder = getRecordTarget.request(MediaType.TEXT_PLAIN_TYPE);
-
-            Response response = invocationBuilder.get();
-
-            List<Element> elements = splitToRecords(response.readEntity(String.class));
-
-            if (elements.isEmpty()) {
-                return null;
+            Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+            String response = StringUtils.EMPTY;
+            int countAttempt = 0;
+            while (StringUtils.isBlank(response) && countAttempt <= attempt) {
+                countAttempt++;
+                response = liveImportClient.executeHttpGetRequest(1000, uriBuilder.toString(), params);
             }
 
-            return transformSourceRecords(elements.get(0));
+            if (StringUtils.isBlank(response)) {
+                throw new RuntimeException("After " + attempt
+                        + " attempts to contact the PubMed service, a correct answer could not be received."
+                        + " The request was made with this URL:" + uriBuilder.toString());
+            }
+
+            List<Element> elements = splitToRecords(response);
+
+            return elements.isEmpty() ? null : transformSourceRecords(elements.get(0));
         }
     }
 
@@ -396,40 +407,57 @@ public class PubmedImportMetadataSourceServiceImpl extends AbstractImportMetadat
         @Override
         public Collection<ImportRecord> call() throws Exception {
 
-            WebTarget getRecordIdsTarget = pubmedWebTarget
-                .queryParam("term", query.getParameterAsClass("term", String.class));
-            getRecordIdsTarget = getRecordIdsTarget
-                .queryParam("field", query.getParameterAsClass("field", String.class));
-            getRecordIdsTarget = getRecordIdsTarget.queryParam("usehistory", "y");
-            getRecordIdsTarget = getRecordIdsTarget.path("esearch.fcgi");
+            URIBuilder uriBuilder = new URIBuilder(urlSearch);
+            uriBuilder.addParameter("db", "pubmed");
+            uriBuilder.addParameter("usehistory", "y");
+            uriBuilder.addParameter("term", query.getParameterAsClass("term", String.class));
+            uriBuilder.addParameter("field", query.getParameterAsClass("field", String.class));
 
-            Invocation.Builder invocationBuilder = getRecordIdsTarget.request(MediaType.TEXT_PLAIN_TYPE);
-
-            Response response = invocationBuilder.get();
-            String responseString = response.readEntity(String.class);
-
-            String queryKey = getSingleElementValue(responseString, "QueryKey");
-            String webEnv = getSingleElementValue(responseString, "WebEnv");
-
-            WebTarget getRecordsTarget = pubmedWebTarget.queryParam("WebEnv", webEnv);
-            getRecordsTarget = getRecordsTarget.queryParam("query_key", queryKey);
-            getRecordsTarget = getRecordsTarget.queryParam("retmode", "xml");
-            getRecordsTarget = getRecordsTarget.path("efetch.fcgi");
-
-            invocationBuilder = getRecordsTarget.request(MediaType.TEXT_PLAIN_TYPE);
-            response = invocationBuilder.get();
-
-            String xml = response.readEntity(String.class);
-            return parseXMLString(xml);
-        }
+            Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+            String response = StringUtils.EMPTY;
+            int countAttempt = 0;
+            while (StringUtils.isBlank(response) && countAttempt <= attempt) {
+                countAttempt++;
+                response = liveImportClient.executeHttpGetRequest(1000, uriBuilder.toString(), params);
             }
 
+            if (StringUtils.isBlank(response)) {
+                throw new RuntimeException("After " + attempt
+                        + " attempts to contact the PubMed service, a correct answer could not be received."
+                        + " The request was made with this URL:" + uriBuilder.toString());
+            }
+
+            String webEnv = getSingleElementValue(response, "WebEnv");
+            String queryKey = getSingleElementValue(response, "QueryKey");
+
+            URIBuilder uriBuilder2 = new URIBuilder(urlFetch);
+            uriBuilder2.addParameter("db", "pubmed");
+            uriBuilder2.addParameter("retmode", "xml");
+            uriBuilder2.addParameter("WebEnv", webEnv);
+            uriBuilder2.addParameter("query_key", queryKey);
+
+            Map<String, Map<String, String>> params2 = new HashMap<String, Map<String,String>>();
+            String response2 = StringUtils.EMPTY;
+            countAttempt = 0;
+            while (StringUtils.isBlank(response2) && countAttempt <= attempt) {
+                countAttempt++;
+                response2 = liveImportClient.executeHttpGetRequest(1000, uriBuilder2.toString(), params2);
+            }
+
+            if (StringUtils.isBlank(response2)) {
+                throw new RuntimeException("After " + attempt
+                        + " attempts to contact the PubMed service, a correct answer could not be received."
+                        + " The request was made with this URL:" + uriBuilder2.toString());
+            }
+
+            return parseXMLString(response2);
+        }
+    }
 
     @Override
     public List<ImportRecord> getRecords(InputStream inputStream) throws FileSourceException {
-        String xml = null;
         try (Reader reader = new InputStreamReader(inputStream, "UTF-8")) {
-            xml = CharStreams.toString(reader);
+            String xml = CharStreams.toString(reader);
             return parseXMLString(xml);
         } catch (IOException e) {
             throw new FileSourceException ("Cannot read XML from InputStream", e);
@@ -456,4 +484,21 @@ public class PubmedImportMetadataSourceServiceImpl extends AbstractImportMetadat
         }
         return records;
     }
+
+    public String getUrlFetch() {
+        return urlFetch;
+    }
+
+    public void setUrlFetch(String urlFetch) {
+        this.urlFetch = urlFetch;
+    }
+
+    public String getUrlSearch() {
+        return urlSearch;
+    }
+
+    public void setUrlSearch(String urlSearch) {
+        this.urlSearch = urlSearch;
+    }
+
 }

dspace-api/src/main/java/org/dspace/importer/external/pubmedeurope/PubmedEuropeFieldMapping.java

@@ -0,0 +1,37 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.pubmedeurope;
+
+import java.util.Map;
+import javax.annotation.Resource;
+
+import org.dspace.importer.external.metadatamapping.AbstractMetadataFieldMapping;
+
+/**
+ * An implementation of {@link AbstractMetadataFieldMapping}
+ * Responsible for defining the mapping of the PubmedEurope metadatum fields on the DSpace metadatum fields
+ *
+ * @author Pasquale Cavallo (pasquale.cavallo at 4science dot it)
+ */
+public class PubmedEuropeFieldMapping extends AbstractMetadataFieldMapping {
+
+    /**
+     * Defines which metadatum is mapped on which metadatum. Note that while the key must be unique it
+     * only matters here for postprocessing of the value. The mapped MetadatumContributor has full control over
+     * what metadatafield is generated.
+     *
+     * @param metadataFieldMap The map containing the link between retrieve metadata and metadata that will be set to
+     *                         the item.
+     */
+    @Override
+    @Resource(name = "pubmedEuropeMetadataFieldMap")
+    public void setMetadataFieldMap(Map metadataFieldMap) {
+        super.setMetadataFieldMap(metadataFieldMap);
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/pubmedeurope/PubmedEuropeMetadataSourceServiceImpl.java

@@ -0,0 +1,419 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.pubmedeurope;
+
+import java.io.IOException;
+import java.io.StringReader;
+import java.net.URISyntaxException;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.Callable;
+import javax.el.MethodNotFoundException;
+
+import org.apache.commons.lang3.StringUtils;
+import org.apache.http.HttpException;
+import org.apache.http.client.ClientProtocolException;
+import org.apache.http.client.utils.URIBuilder;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.dspace.content.Item;
+import org.dspace.importer.external.datamodel.ImportRecord;
+import org.dspace.importer.external.datamodel.Query;
+import org.dspace.importer.external.exception.MetadataSourceException;
+import org.dspace.importer.external.liveimportclient.service.LiveImportClient;
+import org.dspace.importer.external.service.AbstractImportMetadataSourceService;
+import org.dspace.importer.external.service.components.QuerySource;
+import org.jaxen.JaxenException;
+import org.jdom2.Document;
+import org.jdom2.Element;
+import org.jdom2.JDOMException;
+import org.jdom2.filter.Filters;
+import org.jdom2.input.SAXBuilder;
+import org.jdom2.xpath.XPathExpression;
+import org.jdom2.xpath.XPathFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.util.CollectionUtils;
+
+/**
+ * Implements a data source for querying PubMed Europe
+ * 
+ * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+ */
+public class PubmedEuropeMetadataSourceServiceImpl extends AbstractImportMetadataSourceService<Element>
+        implements QuerySource {
+
+    private final static Logger log = LogManager.getLogger();
+
+    private String url;
+
+    @Autowired
+    private LiveImportClient liveImportClient;
+
+    @Override
+    public String getImportSource() {
+        return "pubmedeu";
+    }
+
+    /**
+     * Get a single record from the PubMed Europe.
+     *
+     * @param id                         Identifier for the record
+     * @return                           The first matching record
+     * @throws MetadataSourceException   If the underlying methods throw any exception.
+     */
+    @Override
+    public ImportRecord getRecord(String id) throws MetadataSourceException {
+        List<ImportRecord> records = retry(new SearchByIdCallable(id));
+        return CollectionUtils.isEmpty(records) ? null : records.get(0);
+    }
+
+    /**
+     * Find the number of records matching a query;
+     *
+     * @param query a query string to base the search on.
+     * @return the sum of the matching records over this import source
+     * @throws MetadataSourceException if the underlying methods throw any exception.
+     */
+    @Override
+    public int getRecordsCount(String query) throws MetadataSourceException {
+        return retry(new CountByQueryCallable(query));
+    }
+
+    /**
+     * Find the number of records matching a query;
+     *
+     * @param query                      A query string to base the search on.
+     * @return                           The sum of the matching records over this import source
+     * @throws MetadataSourceException   If the underlying methods throw any exception.
+     */
+    @Override
+    public int getRecordsCount(Query query) throws MetadataSourceException {
+        return retry(new CountByQueryCallable(query));
+    }
+
+    /**
+     * Find records matching a string query.
+     *
+     * @param query                      A query string to base the search on.
+     * @param start                      Offset to start at
+     * @param count                      Number of records to retrieve.
+     * @return                           A set of records. Fully transformed.
+     * @throws MetadataSourceException   If the underlying methods throw any exception.
+     */
+    @Override
+    public Collection<ImportRecord> getRecords(String query, int start, int count) throws MetadataSourceException {
+        return retry(new SearchByQueryCallable(query, count, start));
+    }
+
+    /**
+     * Find records based on a object query.
+     *
+     * @param query                     A query object to base the search on.
+     * @return                          A set of records. Fully transformed.
+     * @throws MetadataSourceException  If the underlying methods throw any exception.
+     */
+    @Override
+    public Collection<ImportRecord> getRecords(Query query) throws MetadataSourceException {
+        return retry(new SearchByQueryCallable(query));
+    }
+
+    /**
+     * Get a single record from the PubMed Europe.
+     *
+     * @param query                       A query matching a single record
+     * @return                            The first matching record
+     * @throws MetadataSourceException    If the underlying methods throw any exception.
+     */
+    @Override
+    public ImportRecord getRecord(Query query) throws MetadataSourceException {
+        List<ImportRecord> records = retry(new SearchByIdCallable(query));
+        return CollectionUtils.isEmpty(records) ? null : records.get(0);
+    }
+
+    /**
+     * Finds records based on query object.
+     *
+     * @param query                        A query object to base the search on.
+     * @return                             A collection of import records.
+     * @throws MetadataSourceException     If the underlying methods throw any exception.
+     */
+    @Override
+    public Collection<ImportRecord> findMatchingRecords(Query query) throws MetadataSourceException {
+        return retry(new FindMatchingRecordCallable(query));
+    }
+
+    @Override
+    public Collection<ImportRecord> findMatchingRecords(Item item) throws MetadataSourceException {
+        throw new MethodNotFoundException("This method is not implemented for PubMed Europe");
+    }
+
+    @Override
+    public void init() throws Exception {}
+
+    public List<ImportRecord> getByPubmedEuropeID(String pubmedID, Integer start, Integer size)
+            throws IOException, HttpException {
+        String query = "(EXT_ID:" + pubmedID + ")";
+        return search(query, size < 1 ? 1 : size, start);
+    }
+
+    /**
+     * This class is a Callable implementation to get PubMed Europe entries based on
+     * query object.
+     * 
+     * This Callable use as query value the string queryString passed to constructor.
+     * If the object will be construct through Query.class instance, a Query's map entry with key "query" will be used.
+     * Pagination is supported too, using the value of the Query's map with keys "start" and "count".
+     * 
+     * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+     */
+    private class SearchByQueryCallable implements Callable<List<ImportRecord>> {
+
+        private Query query;
+
+        private SearchByQueryCallable(String queryString, Integer maxResult, Integer start) {
+            query = new Query();
+            query.addParameter("query", queryString);
+            query.addParameter("count", maxResult);
+            query.addParameter("start", start);
+        }
+
+        private SearchByQueryCallable(Query query) {
+            this.query = query;
+        }
+
+        @Override
+        public List<ImportRecord> call() throws Exception {
+            Integer count = query.getParameterAsClass("count", Integer.class);
+            Integer start = query.getParameterAsClass("start", Integer.class);
+            String queryString = query.getParameterAsClass("query", String.class);
+            return search(queryString, count, start);
+
+        }
+    }
+
+    /**
+     * This class is a Callable implementation to get an PubMed Europe entry using PubMed Europe ID
+     * 
+     * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+     */
+    private class SearchByIdCallable implements Callable<List<ImportRecord>> {
+        private Query query;
+
+        private SearchByIdCallable(Query query) {
+            this.query = query;
+        }
+
+        private SearchByIdCallable(String id) {
+            this.query = new Query();
+            query.addParameter("id", id);
+        }
+
+        @Override
+        public List<ImportRecord> call() throws Exception {
+            return getByPubmedEuropeID(query.getParameterAsClass("id", String.class), 1 ,0);
+        }
+    }
+
+    /**
+     * This class is a Callable implementation to search PubMed Europe entries
+     * using author, title and year.
+     * Pagination is supported too, using the value of the Query's map with keys "start" and "count".
+     * 
+     * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+     */
+    public class FindMatchingRecordCallable implements Callable<List<ImportRecord>> {
+
+        private Query query;
+
+        private FindMatchingRecordCallable(Query q) {
+            query = q;
+        }
+
+        @Override
+        public List<ImportRecord> call() throws Exception {
+            String title = query.getParameterAsClass("title", String.class);
+            String author = query.getParameterAsClass("author", String.class);
+            Integer year = query.getParameterAsClass("year", Integer.class);
+            Integer maxResult = query.getParameterAsClass("maxResult", Integer.class);
+            Integer start = query.getParameterAsClass("start", Integer.class);
+            return search(title, author, year, maxResult, start);
+        }
+
+    }
+
+    /**
+     * This class is a Callable implementation to count the number
+     * of entries for an PubMed Europe query.
+     * 
+     * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+     */
+    private class CountByQueryCallable implements Callable<Integer> {
+        private Query query;
+
+
+        private CountByQueryCallable(String queryString) {
+            query = new Query();
+            query.addParameter("query", queryString);
+        }
+
+        private CountByQueryCallable(Query query) {
+            this.query = query;
+        }
+
+        @Override
+        public Integer call() throws Exception {
+            try {
+                return count(query.getParameterAsClass("query", String.class));
+            } catch (Exception e) {
+                throw new RuntimeException();
+            }
+        }
+    }
+
+    /**
+     * Returns the total number of PubMed Europe publications returned by a specific query
+     * 
+     * @param query                      A keyword or combination of keywords to be searched
+     * @throws URISyntaxException        If URI syntax error
+     * @throws ClientProtocolException   The client protocol exception
+     * @throws IOException               If IO error
+     * @throws JaxenException            If Xpath evaluation failed
+     */
+    public Integer count(String query) throws URISyntaxException, ClientProtocolException, IOException, JaxenException {
+        try {
+            Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+            String response = liveImportClient.executeHttpGetRequest(1000, buildURI(1, query), params);
+
+            SAXBuilder saxBuilder = new SAXBuilder();
+            Document document = saxBuilder.build(new StringReader(response));
+            Element root = document.getRootElement();
+            Element element = root.getChild("hitCount");
+            return Integer.parseInt(element.getValue());
+        } catch (JDOMException e) {
+            log.error(e.getMessage(), e);
+            throw new RuntimeException(e.getMessage(), e);
+        }
+    }
+
+    public List<ImportRecord> search(String title, String author, int year, int count, int start)
+            throws IOException {
+        StringBuffer query = new StringBuffer();
+        query.append("(");
+        if (StringUtils.isNotBlank(title)) {
+            query.append("TITLE:").append(title);
+            query.append(")");
+        }
+        if (StringUtils.isNotBlank(author)) {
+            // Search for a surname and (optionally) initial(s) in publication author lists
+            // AUTH:einstein, AUTH:”Smith AB”
+            String splitRegex = "(\\s*,\\s+|\\s*;\\s+|\\s*;+|\\s*,+|\\s+)";
+            String[] authors = author.split(splitRegex);
+            if (query.length() > 0) {
+                query.append(" AND ");
+            }
+            query.append("(");
+            int countAuthors = 0;
+            for (String auth : authors) {
+                countAuthors++;
+                query.append("AUTH:\"").append(auth).append("\"");
+                if (countAuthors < authors.length) {
+                    query.append(" AND ");
+                }
+            }
+            query.append(")");
+        }
+        if (year != -1) {
+            if (query.length() > 0) {
+                query.append(" AND ");
+            }
+            query.append("( PUB_YEAR:").append(year).append(")");
+        }
+        query.append(")");
+        return search(query.toString(), count, start);
+    }
+
+    /**
+     * Returns a list of PubMed Europe publication records
+     * 
+     * @param query           A keyword or combination of keywords to be searched
+     * @param size           The number of search results per page
+     * @param start           Start number for the acquired search result list
+     * @throws IOException    If IO error
+     */
+    public List<ImportRecord> search(String query, Integer size, Integer start) throws IOException {
+        List<ImportRecord> results = new ArrayList<>();
+        try {
+            URIBuilder uriBuilder = new URIBuilder(this.url);
+            uriBuilder.addParameter("format", "xml");
+            uriBuilder.addParameter("resulttype", "core");
+            uriBuilder.addParameter("pageSize", String.valueOf(size));
+            uriBuilder.addParameter("query", query);
+            Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+            boolean lastPage = false;
+            int skipped = 0;
+            while (!lastPage || results.size() < size) {
+                String response = liveImportClient.executeHttpGetRequest(1000, uriBuilder.toString(), params);
+                String cursorMark = StringUtils.EMPTY;
+                if (StringUtils.isNotBlank(response)) {
+                    SAXBuilder saxBuilder = new SAXBuilder();
+                    Document document = saxBuilder.build(new StringReader(response));
+                    XPathFactory xpfac = XPathFactory.instance();
+                    XPathExpression<Element> xPath = xpfac.compile("//responseWrapper/resultList/result",
+                            Filters.element());
+                    List<Element> records = xPath.evaluate(document);
+                    if (records.size() > 0) {
+                        for (Element item : records) {
+                            if (start > skipped) {
+                                skipped++;
+                            } else {
+                                results.add(transformSourceRecords(item));
+                            }
+                        }
+                    } else {
+                        lastPage = true;
+                        break;
+                    }
+                    Element root = document.getRootElement();
+                    Element nextCursorMark = root.getChild("nextCursorMark");
+                    cursorMark = Objects.nonNull(nextCursorMark) ? nextCursorMark.getValue() : StringUtils.EMPTY;
+                }
+                if (StringUtils.isNotBlank(cursorMark)) {
+                    uriBuilder.setParameter("cursorMar", cursorMark);
+                } else {
+                    lastPage = true;
+                }
+            }
+        } catch (URISyntaxException | JDOMException e) {
+            log.error(e.getMessage(), e);
+            throw new RuntimeException(e.getMessage(), e);
+        }
+        return results;
+    }
+
+    private String buildURI(Integer pageSize, String query) throws URISyntaxException {
+        URIBuilder uriBuilder = new URIBuilder(this.url);
+        uriBuilder.addParameter("format", "xml");
+        uriBuilder.addParameter("resulttype", "core");
+        uriBuilder.addParameter("pageSize", String.valueOf(pageSize));
+        uriBuilder.addParameter("query", query);
+        return uriBuilder.toString();
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/scopus/service/ScopusFieldMapping.java

@@ -0,0 +1,38 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.scopus.service;
+
+import java.util.Map;
+import javax.annotation.Resource;
+
+import org.dspace.importer.external.metadatamapping.AbstractMetadataFieldMapping;
+
+
+/**
+ * An implementation of {@link AbstractMetadataFieldMapping}
+ * Responsible for defining the mapping of the Scopus metadatum fields on the DSpace metadatum fields
+ *
+ * @author Pasquale Cavallo (pasquale.cavallo at 4science dot it)
+ */
+public class ScopusFieldMapping extends AbstractMetadataFieldMapping {
+
+    /**
+     * Defines which metadatum is mapped on which metadatum. Note that while the key must be unique it
+     * only matters here for postprocessing of the value. The mapped MetadatumContributor has full control over
+     * what metadatafield is generated.
+     *
+     * @param metadataFieldMap The map containing the link between retrieve metadata and metadata that will be set to
+     *                         the item.
+     */
+    @Override
+    @Resource(name = "scopusMetadataFieldMap")
+    public void setMetadataFieldMap(Map metadataFieldMap) {
+        super.setMetadataFieldMap(metadataFieldMap);
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/scopus/service/ScopusImportMetadataSourceServiceImpl.java

@@ -0,0 +1,421 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.scopus.service;
+
+import static org.dspace.importer.external.liveimportclient.service.LiveImportClientImpl.URI_PARAMETERS;
+
+import java.io.IOException;
+import java.io.StringReader;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.Objects;
+import java.util.concurrent.Callable;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import javax.el.MethodNotFoundException;
+
+import org.apache.commons.lang3.StringUtils;
+import org.dspace.content.Item;
+import org.dspace.importer.external.datamodel.ImportRecord;
+import org.dspace.importer.external.datamodel.Query;
+import org.dspace.importer.external.exception.MetadataSourceException;
+import org.dspace.importer.external.liveimportclient.service.LiveImportClient;
+import org.dspace.importer.external.service.AbstractImportMetadataSourceService;
+import org.dspace.importer.external.service.DoiCheck;
+import org.dspace.importer.external.service.components.QuerySource;
+import org.jdom2.Document;
+import org.jdom2.Element;
+import org.jdom2.JDOMException;
+import org.jdom2.Namespace;
+import org.jdom2.filter.Filters;
+import org.jdom2.input.SAXBuilder;
+import org.jdom2.xpath.XPathExpression;
+import org.jdom2.xpath.XPathFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+
+/**
+ * Implements a data source for querying Scopus
+ * 
+ * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science dot com)
+ */
+public class ScopusImportMetadataSourceServiceImpl extends AbstractImportMetadataSourceService<Element>
+        implements QuerySource {
+
+    private int timeout = 1000;
+
+    int itemPerPage = 25;
+
+    private String url;
+    private String apiKey;
+    private String instKey;
+    private String viewMode;
+
+    @Autowired
+    private LiveImportClient liveImportClient;
+
+    public LiveImportClient getLiveImportClient() {
+        return liveImportClient;
+    }
+
+    public void setLiveImportClient(LiveImportClient liveImportClient) {
+        this.liveImportClient = liveImportClient;
+    }
+
+    @Override
+    public void init() throws Exception {}
+
+    /**
+     * The string that identifies this import implementation. Preferable a URI
+     *
+     * @return the identifying uri
+     */
+    @Override
+    public String getImportSource() {
+        return "scopus";
+    }
+
+    @Override
+    public int getRecordsCount(String query) throws MetadataSourceException {
+        if (isEID(query)) {
+            return retry(new FindByIdCallable(query)).size();
+        }
+        if (DoiCheck.isDoi(query)) {
+            query = DoiCheck.purgeDoiValue(query);
+        }
+        return retry(new SearchNBByQueryCallable(query));
+    }
+
+    @Override
+    public int getRecordsCount(Query query) throws MetadataSourceException {
+        if (isEID(query.toString())) {
+            return retry(new FindByIdCallable(query.toString())).size();
+        }
+        if (DoiCheck.isDoi(query.toString())) {
+            query.addParameter("query", DoiCheck.purgeDoiValue(query.toString()));
+        }
+        return retry(new SearchNBByQueryCallable(query));
+    }
+
+    @Override
+    public Collection<ImportRecord> getRecords(String query, int start,
+            int count) throws MetadataSourceException {
+        if (isEID(query)) {
+            return retry(new FindByIdCallable(query));
+        }
+        if (DoiCheck.isDoi(query)) {
+            query = DoiCheck.purgeDoiValue(query);
+        }
+        return retry(new SearchByQueryCallable(query, count, start));
+    }
+
+    @Override
+    public Collection<ImportRecord> getRecords(Query query)
+            throws MetadataSourceException {
+        if (isEID(query.toString())) {
+            return retry(new FindByIdCallable(query.toString()));
+        }
+        if (DoiCheck.isDoi(query.toString())) {
+            query.addParameter("query", DoiCheck.purgeDoiValue(query.toString()));
+        }
+        return retry(new SearchByQueryCallable(query));
+    }
+
+
+    @Override
+    public ImportRecord getRecord(Query query) throws MetadataSourceException {
+        List<ImportRecord> records = null;
+        if (DoiCheck.isDoi(query.toString())) {
+            query.addParameter("query", DoiCheck.purgeDoiValue(query.toString()));
+        }
+        if (isEID(query.toString())) {
+            records = retry(new FindByIdCallable(query.toString()));
+        } else {
+            records = retry(new SearchByQueryCallable(query));
+        }
+        return records == null || records.isEmpty() ? null : records.get(0);
+    }
+
+    @Override
+    public Collection<ImportRecord> findMatchingRecords(Item item)
+            throws MetadataSourceException {
+        throw new MethodNotFoundException("This method is not implemented for Scopus");
+    }
+
+    @Override
+    public ImportRecord getRecord(String id) throws MetadataSourceException {
+        List<ImportRecord> records = retry(new FindByIdCallable(id));
+        return records == null || records.isEmpty() ? null : records.get(0);
+    }
+
+    @Override
+    public Collection<ImportRecord> findMatchingRecords(Query query)
+            throws MetadataSourceException {
+        if (isEID(query.toString())) {
+            return retry(new FindByIdCallable(query.toString()));
+        }
+        if (DoiCheck.isDoi(query.toString())) {
+            query.addParameter("query", DoiCheck.purgeDoiValue(query.toString()));
+        }
+        return retry(new FindByQueryCallable(query));
+    }
+
+    private boolean isEID(String query) {
+        Pattern pattern = Pattern.compile("2-s2\\.0-\\d+");
+        Matcher match = pattern.matcher(query);
+        if (match.matches()) {
+            return true;
+        }
+        return false;
+    }
+
+    /**
+     * This class implements a callable to get the numbers of result
+     */
+    private class SearchNBByQueryCallable implements Callable<Integer> {
+
+        private String query;
+
+        private SearchNBByQueryCallable(String queryString) {
+            this.query = queryString;
+        }
+
+        private SearchNBByQueryCallable(Query query) {
+            this.query = query.getParameterAsClass("query", String.class);
+        }
+
+        @Override
+        public Integer call() throws Exception {
+            if (StringUtils.isNotBlank(apiKey)) {
+                // Execute the request.
+                Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+                Map<String, String> requestParams = getRequestParameters(query, null, null, null);
+                params.put(URI_PARAMETERS, requestParams);
+                String response = liveImportClient.executeHttpGetRequest(timeout, url, params);
+
+                SAXBuilder saxBuilder = new SAXBuilder();
+                Document document = saxBuilder.build(new StringReader(response));
+                Element root = document.getRootElement();
+
+                List<Namespace> namespaces = Arrays.asList(
+                     Namespace.getNamespace("opensearch", "http://a9.com/-/spec/opensearch/1.1/"));
+                XPathExpression<Element> xpath = XPathFactory.instance()
+                          .compile("opensearch:totalResults", Filters.element(), null, namespaces);
+
+                Element count = xpath.evaluateFirst(root);
+                try {
+                    return Integer.parseInt(count.getText());
+                } catch (NumberFormatException e) {
+                    return null;
+                }
+            }
+            return null;
+        }
+    }
+
+    /**
+     * This class is a Callable implementation to get a Scopus entry using EID
+     * 
+     * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+     */
+    private class FindByIdCallable implements Callable<List<ImportRecord>> {
+
+        private String eid;
+
+        private FindByIdCallable(String eid) {
+            this.eid = eid;
+        }
+
+        @Override
+        public List<ImportRecord> call() throws Exception {
+            List<ImportRecord> results = new ArrayList<>();
+            String queryString = "EID(" + eid.replace("!", "/") + ")";
+            if (StringUtils.isNotBlank(apiKey)) {
+                Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+                Map<String, String> requestParams = getRequestParameters(queryString, viewMode, null, null);
+                params.put(URI_PARAMETERS, requestParams);
+                String response = liveImportClient.executeHttpGetRequest(timeout, url, params);
+                List<Element> elements = splitToRecords(response);
+                for (Element record : elements) {
+                    results.add(transformSourceRecords(record));
+                }
+            }
+            return results;
+        }
+    }
+
+    /**
+     * This class implements a callable to get the items based on query parameters
+     */
+    private class FindByQueryCallable implements Callable<List<ImportRecord>> {
+
+        private String title;
+        private String author;
+        private Integer year;
+        private Integer start;
+        private Integer count;
+
+        private FindByQueryCallable(Query query) {
+            this.title = query.getParameterAsClass("title", String.class);
+            this.year = query.getParameterAsClass("year", Integer.class);
+            this.author = query.getParameterAsClass("author", String.class);
+            this.start = query.getParameterAsClass("start", Integer.class) != null ?
+                query.getParameterAsClass("start", Integer.class) : 0;
+            this.count = query.getParameterAsClass("count", Integer.class) != null ?
+                query.getParameterAsClass("count", Integer.class) : 20;
+        }
+
+        @Override
+        public List<ImportRecord> call() throws Exception {
+            List<ImportRecord> results = new ArrayList<>();
+            String queryString = "";
+            StringBuffer query = new StringBuffer();
+            if (StringUtils.isNotBlank(title)) {
+                query.append("title(").append(title).append("");
+            }
+            if (StringUtils.isNotBlank(author)) {
+                // [FAU]
+                if (query.length() > 0) {
+                    query.append(" AND ");
+                }
+                query.append("AUTH(").append(author).append(")");
+            }
+            if (year != -1) {
+                // [DP]
+                if (query.length() > 0) {
+                    query.append(" AND ");
+                }
+                query.append("PUBYEAR IS ").append(year);
+            }
+            queryString = query.toString();
+
+            if (apiKey != null && !apiKey.equals("")) {
+                Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+                Map<String, String> requestParams = getRequestParameters(queryString, viewMode, start, count);
+                params.put(URI_PARAMETERS, requestParams);
+                String response = liveImportClient.executeHttpGetRequest(timeout, url, params);
+                List<Element> elements = splitToRecords(response);
+                for (Element record : elements) {
+                    results.add(transformSourceRecords(record));
+                }
+            }
+            return results;
+        }
+    }
+
+    /**
+     * Find records matching a string query.
+     *
+     * @param query    A query string to base the search on.
+     * @param start    Offset to start at
+     * @param count    Number of records to retrieve.
+     * @return         A set of records. Fully transformed.
+     * 
+     * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+     */
+    private class SearchByQueryCallable implements Callable<List<ImportRecord>> {
+        private Query query;
+
+
+        private SearchByQueryCallable(String queryString, Integer maxResult, Integer start) {
+            query = new Query();
+            query.addParameter("query", queryString);
+            query.addParameter("start", start);
+            query.addParameter("count", maxResult);
+        }
+
+        private SearchByQueryCallable(Query query) {
+            this.query = query;
+        }
+
+        @Override
+        public List<ImportRecord> call() throws Exception {
+            List<ImportRecord> results = new ArrayList<>();
+            String queryString = query.getParameterAsClass("query", String.class);
+            Integer start = query.getParameterAsClass("start", Integer.class);
+            Integer count = query.getParameterAsClass("count", Integer.class);
+            if (StringUtils.isNotBlank(apiKey)) {
+                Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+                Map<String, String> requestParams = getRequestParameters(queryString, viewMode, start, count);
+                params.put(URI_PARAMETERS, requestParams);
+                String response = liveImportClient.executeHttpGetRequest(timeout, url, params);
+                List<Element> elements = splitToRecords(response);
+                for (Element record : elements) {
+                    results.add(transformSourceRecords(record));
+                }
+            }
+            return results;
+        }
+    }
+
+    private Map<String, String> getRequestParameters(String query, String viewMode, Integer start, Integer count) {
+        Map<String, String> params = new HashMap<String, String>();
+        params.put("httpAccept", "application/xml");
+        params.put("apiKey", apiKey);
+        params.put("query", query);
+
+        if (StringUtils.isNotBlank(instKey)) {
+            params.put("insttoken", instKey);
+        }
+        if (StringUtils.isNotBlank(viewMode)) {
+            params.put("view", viewMode);
+        }
+
+        params.put("start", (Objects.nonNull(start) ? start + "" : "0"));
+        params.put("count", (Objects.nonNull(count) ? count + "" : "20"));
+        return params;
+    }
+
+    private List<Element> splitToRecords(String recordsSrc) {
+        try {
+            SAXBuilder saxBuilder = new SAXBuilder();
+            Document document = saxBuilder.build(new StringReader(recordsSrc));
+            Element root = document.getRootElement();
+            List<Element> records = root.getChildren("entry",Namespace.getNamespace("http://www.w3.org/2005/Atom"));
+            return records;
+        } catch (JDOMException | IOException e) {
+            return new ArrayList<Element>();
+        }
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    public String getViewMode() {
+        return viewMode;
+    }
+
+    public void setViewMode(String viewMode) {
+        this.viewMode = viewMode;
+    }
+
+    public String getApiKey() {
+        return apiKey;
+    }
+
+    public String getInstKey() {
+        return instKey;
+    }
+
+    public void setApiKey(String apiKey) {
+        this.apiKey = apiKey;
+    }
+
+    public void setInstKey(String instKey) {
+        this.instKey = instKey;
+    }
+
+}

dspace-api/src/main/java/org/dspace/importer/external/wos/service/WOSFieldMapping.java

@@ -0,0 +1,37 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.wos.service;
+import java.util.Map;
+import javax.annotation.Resource;
+
+import org.dspace.importer.external.metadatamapping.AbstractMetadataFieldMapping;
+
+/**
+ * An implementation of {@link AbstractMetadataFieldMapping}
+ * Responsible for defining the mapping of the Web of Science metadatum fields on the DSpace metadatum fields
+ *
+ * @author Boychuk Mykhaylo (boychuk.mykhaylo at 4science dot it)
+ */
+@SuppressWarnings("rawtypes")
+public class WOSFieldMapping extends AbstractMetadataFieldMapping {
+
+    /**
+     * Defines which metadatum is mapped on which metadatum. Note that while the key must be unique it
+     * only matters here for postprocessing of the value. The mapped MetadatumContributor has full control over
+     * what metadatafield is generated.
+     *
+     * @param metadataFieldMap The map containing the link between retrieve
+     *                         metadata and metadata that will be set to the item.
+     */
+    @Override
+    @SuppressWarnings("unchecked")
+    @Resource(name = "wosMetadataFieldMap")
+    public void setMetadataFieldMap(Map metadataFieldMap) {
+        super.setMetadataFieldMap(metadataFieldMap);
+    }
+}

dspace-api/src/main/java/org/dspace/importer/external/wos/service/WOSImportMetadataSourceServiceImpl.java

@@ -0,0 +1,329 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.importer.external.wos.service;
+
+import static org.dspace.importer.external.liveimportclient.service.LiveImportClientImpl.HEADER_PARAMETERS;
+
+import java.io.IOException;
+import java.io.StringReader;
+import java.net.URLEncoder;
+import java.nio.charset.StandardCharsets;
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import java.util.concurrent.Callable;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import javax.el.MethodNotFoundException;
+
+import org.apache.commons.collections.CollectionUtils;
+import org.apache.commons.lang3.StringUtils;
+import org.apache.logging.log4j.LogManager;
+import org.apache.logging.log4j.Logger;
+import org.dspace.content.Item;
+import org.dspace.importer.external.datamodel.ImportRecord;
+import org.dspace.importer.external.datamodel.Query;
+import org.dspace.importer.external.exception.MetadataSourceException;
+import org.dspace.importer.external.liveimportclient.service.LiveImportClient;
+import org.dspace.importer.external.service.AbstractImportMetadataSourceService;
+import org.dspace.importer.external.service.DoiCheck;
+import org.dspace.importer.external.service.components.QuerySource;
+import org.jdom2.Document;
+import org.jdom2.Element;
+import org.jdom2.JDOMException;
+import org.jdom2.filter.Filters;
+import org.jdom2.input.SAXBuilder;
+import org.jdom2.xpath.XPathExpression;
+import org.jdom2.xpath.XPathFactory;
+import org.springframework.beans.factory.annotation.Autowired;
+
+/**
+ * Implements a data source for querying Web of Science.
+ * 
+ * @author Boychuk Mykhaylo (boychuk.mykhaylo at 4Science dot it)
+ */
+public class WOSImportMetadataSourceServiceImpl extends AbstractImportMetadataSourceService<Element>
+        implements QuerySource {
+
+    private final static Logger log = LogManager.getLogger();
+
+    private static final String AI_PATTERN  = "^AI=(.*)";
+    private static final Pattern ISI_PATTERN = Pattern.compile("^\\d{15}$");
+
+    private int timeout = 1000;
+
+    private String url;
+    private String urlSearch;
+    private String apiKey;
+
+    @Autowired
+    private LiveImportClient liveImportClient;
+
+    @Override
+    public void init() throws Exception {}
+
+    /**
+     * The string that identifies this import implementation. Preferable a URI
+     *
+     * @return the identifying uri
+     */
+    @Override
+    public String getImportSource() {
+        return "wos";
+    }
+
+    @Override
+    public Collection<ImportRecord> getRecords(String query, int start, int count) throws MetadataSourceException {
+        return retry(new SearchByQueryCallable(query, count, start));
+    }
+
+    @Override
+    public Collection<ImportRecord> getRecords(Query query) throws MetadataSourceException {
+        return retry(new SearchByQueryCallable(query));
+    }
+
+
+    @Override
+    public ImportRecord getRecord(Query query) throws MetadataSourceException {
+        List<ImportRecord> records = retry(new SearchByQueryCallable(query));
+        return records == null || records.isEmpty() ? null : records.get(0);
+    }
+
+    @Override
+    public ImportRecord getRecord(String id) throws MetadataSourceException {
+        List<ImportRecord> records = retry(new FindByIdCallable(id));
+        return records == null || records.isEmpty() ? null : records.get(0);
+    }
+
+    @Override
+    public int getRecordsCount(String query) throws MetadataSourceException {
+        return retry(new SearchNBByQueryCallable(query));
+    }
+
+    @Override
+    public int getRecordsCount(Query query) throws MetadataSourceException {
+        throw new MethodNotFoundException("This method is not implemented for WOS");
+    }
+
+    @Override
+    public Collection<ImportRecord> findMatchingRecords(Item item) throws MetadataSourceException {
+        throw new MethodNotFoundException("This method is not implemented for WOS");
+    }
+
+    @Override
+    public Collection<ImportRecord> findMatchingRecords(Query query) throws MetadataSourceException {
+        throw new MethodNotFoundException("This method is not implemented for WOS");
+    }
+
+    /**
+     * This class implements a callable to get the numbers of result
+     */
+    private class SearchNBByQueryCallable implements Callable<Integer> {
+
+        private String query;
+
+        private SearchNBByQueryCallable(String queryString) {
+            this.query = queryString;
+        }
+
+        private SearchNBByQueryCallable(Query query) {
+            this.query = query.getParameterAsClass("query", String.class);
+        }
+
+        @Override
+        public Integer call() throws Exception {
+            if (StringUtils.isNotBlank(apiKey)) {
+                String queryString = URLEncoder.encode(checkQuery(query), StandardCharsets.UTF_8);
+                String url = urlSearch + queryString + "&count=1&firstRecord=1";
+                Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+                params.put(HEADER_PARAMETERS, getRequestParameters());
+                String response = liveImportClient.executeHttpGetRequest(timeout, url, params);
+
+                SAXBuilder saxBuilder = new SAXBuilder();
+                Document document = saxBuilder.build(new StringReader(response));
+                Element root = document.getRootElement();
+                XPathExpression<Element> xpath = XPathFactory.instance().compile("//*[@name=\"RecordsFound\"]",
+                                                 Filters.element(), null);
+                Element tot = xpath.evaluateFirst(root);
+                return Integer.valueOf(tot.getValue());
+            }
+            return null;
+        }
+    }
+
+    /**
+     * This class is a Callable implementation to get a Web of Science entry using Doi
+     * 
+     * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+     */
+    private class FindByIdCallable implements Callable<List<ImportRecord>> {
+
+        private String doi;
+
+        private FindByIdCallable(String doi) {
+            this.doi = URLEncoder.encode(doi, StandardCharsets.UTF_8);
+        }
+
+        @Override
+        public List<ImportRecord> call() throws Exception {
+            List<ImportRecord> results = new ArrayList<>();
+            if (StringUtils.isNotBlank(apiKey)) {
+                String urlString = url + this.doi + "?databaseId=WOS&lang=en&count=10&firstRecord=1";
+                Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+                params.put(HEADER_PARAMETERS, getRequestParameters());
+                String response = liveImportClient.executeHttpGetRequest(timeout, urlString, params);
+
+                List<Element> elements = splitToRecords(response);
+                for (Element record : elements) {
+                    results.add(transformSourceRecords(record));
+                }
+            }
+            return results;
+        }
+    }
+
+    /**
+     * Find records matching a string query.
+     *
+     * @param query    A query string to base the search on.
+     * @param start    Offset to start at
+     * @param count    Number of records to retrieve.
+     * @return         A set of records. Fully transformed.
+     * 
+     * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.com)
+     */
+    private class SearchByQueryCallable implements Callable<List<ImportRecord>> {
+
+        private Query query;
+
+        private SearchByQueryCallable(String queryString, Integer maxResult, Integer start) {
+            query = new Query();
+            query.addParameter("query", queryString);
+            query.addParameter("start", start);
+            query.addParameter("count", maxResult);
+        }
+
+        private SearchByQueryCallable(Query query) {
+            this.query = query;
+        }
+
+        @Override
+        public List<ImportRecord> call() throws Exception {
+            List<ImportRecord> results = new ArrayList<>();
+            String queryString = checkQuery(query.getParameterAsClass("query", String.class));
+            Integer start = query.getParameterAsClass("start", Integer.class);
+            Integer count = query.getParameterAsClass("count", Integer.class);
+            if (StringUtils.isNotBlank(apiKey)) {
+                Map<String, Map<String, String>> params = new HashMap<String, Map<String,String>>();
+                params.put(HEADER_PARAMETERS, getRequestParameters());
+                String url = urlSearch + URLEncoder.encode(queryString, StandardCharsets.UTF_8)
+                                                 + "&count=" + count + "&firstRecord=" + (start + 1);
+                String response = liveImportClient.executeHttpGetRequest(timeout, url, params);
+
+                List<Element> omElements = splitToRecords(response);
+                for (Element el : omElements) {
+                    results.add(transformSourceRecords(el));
+                }
+            }
+            return results;
+        }
+
+    }
+
+    private Map<String, String> getRequestParameters() {
+        Map<String, String> params = new HashMap<String, String>();
+        params.put("Accept", "application/xml");
+        params.put("X-ApiKey", this.apiKey);
+        return params;
+    }
+
+    /**
+     * This method check if the query contain
+     * "AI=(...)" Author Identifier or a DOI "DO=(query)"
+     * or Accession Number "UT=(query)".
+     * Otherwise the value is placed in TS=(query) tag
+     * that searches for topic terms in the following fields within a document:
+     * Title, Abstract, Author keywords, Keywords Plus
+     * 
+     * @param query
+     */
+    private String checkQuery(String query) {
+        Pattern risPattern = Pattern.compile(AI_PATTERN);
+        Matcher risMatcher = risPattern.matcher(query.trim());
+        if (risMatcher.matches()) {
+            return query;
+        }
+        if (DoiCheck.isDoi(query)) {
+            // FIXME: workaround to be removed once fixed by the community the double post of query param
+            if (query.startsWith(",")) {
+                query = query.substring(1);
+            }
+            return "DO=(" + query + ")";
+        } else if (isIsi(query)) {
+            return "UT=(" + query + ")";
+        }
+        StringBuilder queryBuilder =  new StringBuilder("TS=(");
+        queryBuilder.append(query).append(")");
+        return queryBuilder.toString();
+    }
+
+    private boolean isIsi(String query) {
+        if (query.startsWith("WOS:")) {
+            return true;
+        }
+        Matcher matcher = ISI_PATTERN.matcher(query.trim());
+        return matcher.matches();
+    }
+
+    private List<Element> splitToRecords(String recordsSrc) {
+        try {
+            SAXBuilder saxBuilder = new SAXBuilder();
+            Document document = saxBuilder.build(new StringReader(recordsSrc));
+            Element root = document.getRootElement();
+            String cData = XPathFactory.instance().compile("//*[@name=\"Records\"]",
+                           Filters.element(), null).evaluate(root).get(0).getValue().trim();
+            Document intDocument = saxBuilder.build(new StringReader(cData));
+            XPathExpression<Element> xPath = XPathFactory.instance().compile("*", Filters.element(), null);
+            List<Element> records = xPath.evaluate(intDocument.getRootElement());
+            if (CollectionUtils.isNotEmpty(records)) {
+                return records;
+            }
+        } catch (JDOMException | IOException e) {
+            log.error(e.getMessage());
+            return new ArrayList<Element>();
+        }
+        return new ArrayList<Element>();
+    }
+
+    public String getUrl() {
+        return url;
+    }
+
+    public void setUrl(String url) {
+        this.url = url;
+    }
+
+    public String getUrlSearch() {
+        return urlSearch;
+    }
+
+    public void setUrlSearch(String urlSearch) {
+        this.urlSearch = urlSearch;
+    }
+
+    public String getApiKey() {
+        return apiKey;
+    }
+
+    public void setApiKey(String apiKey) {
+        this.apiKey = apiKey;
+    }
+
+}

dspace-api/src/main/java/org/dspace/scripts/Process.java

@@ -10,6 +10,7 @@ package org.dspace.scripts;
 import java.util.ArrayList;
 import java.util.Date;
 import java.util.List;
+import javax.persistence.CascadeType;
 import javax.persistence.Column;
 import javax.persistence.Entity;
 import javax.persistence.EnumType;
@@ -33,6 +34,7 @@ import org.dspace.content.Bitstream;
 import org.dspace.content.ProcessStatus;
 import org.dspace.core.ReloadableEntity;
 import org.dspace.eperson.EPerson;
+import org.dspace.eperson.Group;
 
 /**
  * This class is the DB Entity representation of the Process object to be stored in the Database
@@ -77,6 +79,17 @@ public class Process implements ReloadableEntity<Integer> {
     )
     private List<Bitstream> bitstreams;
 
+    /*
+     * Special Groups associated with this Process
+     */
+    @ManyToMany(fetch = FetchType.LAZY, cascade = {CascadeType.PERSIST})
+    @JoinTable(
+        name = "process2group",
+        joinColumns = {@JoinColumn(name = "process_id")},
+        inverseJoinColumns = {@JoinColumn(name = "group_id")}
+    )
+    private List<Group> groups;
+
     @Column(name = "creation_time", nullable = false)
     @Temporal(TemporalType.TIMESTAMP)
     private Date creationTime;
@@ -211,6 +224,21 @@ public class Process implements ReloadableEntity<Integer> {
         return creationTime;
     }
 
+    /**
+     * This method sets the special groups associated with the Process.
+     */
+    public List<Group> getGroups() {
+        return groups;
+    }
+
+    /**
+     * This method will return special groups associated with the Process.
+     * @return The special groups of this process.
+     */
+    public void setGroups(List<Group> groups) {
+        this.groups = groups;
+    }
+
     /**
      * Return <code>true</code> if <code>other</code> is the same Process
      * as this object, <code>false</code> otherwise

dspace-api/src/main/java/org/dspace/scripts/ProcessServiceImpl.java

@@ -21,6 +21,7 @@ import java.util.Comparator;
 import java.util.Date;
 import java.util.HashSet;
 import java.util.List;
+import java.util.Optional;
 import java.util.Set;
 import java.util.regex.Pattern;
 
@@ -43,6 +44,7 @@ import org.dspace.core.Constants;
 import org.dspace.core.Context;
 import org.dspace.core.LogHelper;
 import org.dspace.eperson.EPerson;
+import org.dspace.eperson.Group;
 import org.dspace.eperson.service.EPersonService;
 import org.dspace.scripts.service.ProcessService;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -74,13 +76,21 @@ public class ProcessServiceImpl implements ProcessService {
 
     @Override
     public Process create(Context context, EPerson ePerson, String scriptName,
-                          List<DSpaceCommandLineParameter> parameters) throws SQLException {
+                          List<DSpaceCommandLineParameter> parameters,
+                          final Set<Group> specialGroups) throws SQLException {
 
         Process process = new Process();
         process.setEPerson(ePerson);
         process.setName(scriptName);
         process.setParameters(DSpaceCommandLineParameter.concatenate(parameters));
         process.setCreationTime(new Date());
+        Optional.ofNullable(specialGroups)
+            .ifPresent(sg -> {
+                // we use a set to be sure no duplicated special groups are stored with process
+                Set<Group> specialGroupsSet = new HashSet<>(sg);
+                process.setGroups(new ArrayList<>(specialGroupsSet));
+            });
+
         Process createdProcess = processDAO.create(context, process);
         log.info(LogHelper.getHeader(context, "process_create",
                                       "Process has been created for eperson with email " + ePerson.getEmail()

dspace-api/src/main/java/org/dspace/scripts/handler/DSpaceRunnableHandler.java

@@ -10,7 +10,9 @@ package org.dspace.scripts.handler;
 import java.io.IOException;
 import java.io.InputStream;
 import java.sql.SQLException;
+import java.util.List;
 import java.util.Optional;
+import java.util.UUID;
 
 import org.apache.commons.cli.Options;
 import org.dspace.authorize.AuthorizeException;
@@ -114,4 +116,12 @@ public interface DSpaceRunnableHandler {
      */
     public void writeFilestream(Context context, String fileName, InputStream inputStream, String type)
         throws IOException, SQLException, AuthorizeException;
+
+    /**
+     * This method will return a List of UUIDs for the special groups
+     * associated with the processId contained by specific implementations of this interface.
+     * Otherwise, it returns an empty collection.
+     * @return List containing UUIDs of Special Groups of the associated Process.
+     */
+    public List<UUID> getSpecialGroups();
 }

dspace-api/src/main/java/org/dspace/scripts/handler/impl/CommandLineDSpaceRunnableHandler.java

@@ -10,7 +10,10 @@ package org.dspace.scripts.handler.impl;
 import java.io.File;
 import java.io.IOException;
 import java.io.InputStream;
+import java.util.Collections;
+import java.util.List;
 import java.util.Optional;
+import java.util.UUID;
 
 import org.apache.commons.cli.HelpFormatter;
 import org.apache.commons.cli.Options;
@@ -113,4 +116,9 @@ public class CommandLineDSpaceRunnableHandler implements DSpaceRunnableHandler {
         File file = new File(fileName);
         FileUtils.copyInputStreamToFile(inputStream, file);
     }
+
+    @Override
+    public List<UUID> getSpecialGroups() {
+        return Collections.emptyList();
+    }
 }

dspace-api/src/main/java/org/dspace/scripts/service/ProcessService.java

@@ -11,11 +11,13 @@ import java.io.IOException;
 import java.io.InputStream;
 import java.sql.SQLException;
 import java.util.List;
+import java.util.Set;
 
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Bitstream;
 import org.dspace.core.Context;
 import org.dspace.eperson.EPerson;
+import org.dspace.eperson.Group;
 import org.dspace.scripts.DSpaceCommandLineParameter;
 import org.dspace.scripts.Process;
 import org.dspace.scripts.ProcessLogLevel;
@@ -32,11 +34,14 @@ public interface ProcessService {
      * @param ePerson       The ePerson for which this process will be created on
      * @param scriptName    The script name to be used for the process
      * @param parameters    The parameters to be used for the process
+     * @param specialGroups Allows to set special groups, associated with application context when process is created,
+     *                      other than the ones derived from the eperson membership.
      * @return The created process
      * @throws SQLException If something goes wrong
      */
     public Process create(Context context, EPerson ePerson, String scriptName,
-                          List<DSpaceCommandLineParameter> parameters) throws SQLException;
+                          List<DSpaceCommandLineParameter> parameters,
+                          final Set<Group> specialGroups) throws SQLException;
 
     /**
      * This method will retrieve a Process object from the Database with the given ID

dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/h2/V7.3_2022.05.16__Orcid_token_table.sql

@@ -0,0 +1,24 @@
+--
+-- The contents of this file are subject to the license and copyright
+-- detailed in the LICENSE and NOTICE files at the root of the source
+-- tree and available online at
+--
+-- http://www.dspace.org/license/
+--
+
+-----------------------------------------------------------------------------------
+-- Create table for ORCID access tokens
+-----------------------------------------------------------------------------------
+
+CREATE SEQUENCE orcid_token_id_seq;
+
+CREATE TABLE orcid_token
+(
+    id INTEGER NOT NULL,
+    eperson_id UUID NOT NULL UNIQUE,
+    profile_item_id UUID,
+    access_token VARCHAR(100) NOT NULL,
+    CONSTRAINT orcid_token_pkey PRIMARY KEY (id),
+    CONSTRAINT orcid_token_eperson_id_fkey FOREIGN KEY (eperson_id) REFERENCES eperson (uuid),
+    CONSTRAINT orcid_token_profile_item_id_fkey FOREIGN KEY (profile_item_id) REFERENCES item (uuid)
+);

dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/h2/V7.3_2022.06.16__process_to_group.sql

@@ -0,0 +1,18 @@
+--
+-- The contents of this file are subject to the license and copyright
+-- detailed in the LICENSE and NOTICE files at the root of the source
+-- tree and available online at
+--
+-- http://www.dspace.org/license/
+--
+
+-------------------------------------------------------------------------------
+-- Table to store Groups related to a Process on its creation
+-------------------------------------------------------------------------------
+
+CREATE TABLE Process2Group
+(
+    process_id INTEGER REFERENCES Process(process_id),
+    group_id UUID REFERENCES epersongroup (uuid) ON DELETE CASCADE,
+    CONSTRAINT PK_Process2Group PRIMARY KEY (process_id, group_id)
+);

dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/oracle/V7.3_2022.05.16__Orcid_token_table.sql

@@ -0,0 +1,24 @@
+--
+-- The contents of this file are subject to the license and copyright
+-- detailed in the LICENSE and NOTICE files at the root of the source
+-- tree and available online at
+--
+-- http://www.dspace.org/license/
+--
+
+-----------------------------------------------------------------------------------
+-- Create table for ORCID access tokens
+-----------------------------------------------------------------------------------
+
+CREATE SEQUENCE orcid_token_id_seq;
+
+CREATE TABLE orcid_token
+(
+    id INTEGER NOT NULL,
+    eperson_id RAW(16) NOT NULL UNIQUE,
+    profile_item_id RAW(16),
+    access_token VARCHAR2(100) NOT NULL,
+    CONSTRAINT orcid_token_pkey PRIMARY KEY (id),
+    CONSTRAINT orcid_token_eperson_id_fkey FOREIGN KEY (eperson_id) REFERENCES eperson (uuid),
+    CONSTRAINT orcid_token_profile_item_id_fkey FOREIGN KEY (profile_item_id) REFERENCES item (uuid)
+);

dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/oracle/V7.3_2022.06.16__process_to_group.sql

@@ -0,0 +1,18 @@
+--
+-- The contents of this file are subject to the license and copyright
+-- detailed in the LICENSE and NOTICE files at the root of the source
+-- tree and available online at
+--
+-- http://www.dspace.org/license/
+--
+
+-------------------------------------------------------------------------------
+-- Table to store Groups related to a Process on its creation
+-------------------------------------------------------------------------------
+
+CREATE TABLE Process2Group
+(
+    process_id INTEGER REFERENCES Process(process_id),
+    group_id UUID REFERENCES epersongroup (uuid) ON DELETE CASCADE,
+    CONSTRAINT PK_Process2Group PRIMARY KEY (process_id, group_id)
+);

dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/postgres/V7.3_2022.05.16__Orcid_token_table.sql

@@ -0,0 +1,24 @@
+--
+-- The contents of this file are subject to the license and copyright
+-- detailed in the LICENSE and NOTICE files at the root of the source
+-- tree and available online at
+--
+-- http://www.dspace.org/license/
+--
+
+-----------------------------------------------------------------------------------
+-- Create table for ORCID access tokens
+-----------------------------------------------------------------------------------
+
+CREATE SEQUENCE orcid_token_id_seq;
+
+CREATE TABLE orcid_token
+(
+    id INTEGER NOT NULL,
+    eperson_id uuid NOT NULL UNIQUE,
+    profile_item_id uuid,
+    access_token VARCHAR(100) NOT NULL,
+    CONSTRAINT orcid_token_pkey PRIMARY KEY (id),
+    CONSTRAINT orcid_token_eperson_id_fkey FOREIGN KEY (eperson_id) REFERENCES eperson (uuid),
+    CONSTRAINT orcid_token_profile_item_id_fkey FOREIGN KEY (profile_item_id) REFERENCES item (uuid)
+);

dspace-api/src/main/resources/org/dspace/storage/rdbms/sqlmigration/postgres/V7.3_2022.06.16__process_to_group.sql

@@ -0,0 +1,18 @@
+--
+-- The contents of this file are subject to the license and copyright
+-- detailed in the LICENSE and NOTICE files at the root of the source
+-- tree and available online at
+--
+-- http://www.dspace.org/license/
+--
+
+-------------------------------------------------------------------------------
+-- Table to store Groups related to a Process on its creation
+-------------------------------------------------------------------------------
+
+CREATE TABLE Process2Group
+(
+    process_id INTEGER REFERENCES Process(process_id),
+    group_id UUID REFERENCES epersongroup (uuid) ON DELETE CASCADE,
+    CONSTRAINT PK_Process2Group PRIMARY KEY (process_id, group_id)
+);

dspace-api/src/main/resources/spring/spring-dspace-addon-import-services.xml

@@ -43,11 +43,11 @@
           class="org.dspace.importer.external.arxiv.metadatamapping.ArXivFieldMapping">
     </bean>
 
-
     <bean id="pubmedImportService"
           class="org.dspace.importer.external.pubmed.service.PubmedImportMetadataSourceServiceImpl">
         <property name="metadataFieldMapping" ref="pubmedMetadataFieldMapping"/>
-        <property name="baseAddress" value="https://eutils.ncbi.nlm.nih.gov/entrez/eutils/"/>
+        <property name="urlFetch" value="${pubmed.url.fetch}"/>
+        <property name="urlSearch" value="${pubmed.url.search}"/>
         <property name="generateQueryForItem" ref="pubmedService"></property>
         <property name="supportedExtensions">
             <list>
@@ -56,7 +56,6 @@
         </property>
     </bean>
 
-
     <bean id="pubmedMetadataFieldMapping"
           class="org.dspace.importer.external.pubmed.metadatamapping.PubmedFieldMapping">
     </bean>
@@ -120,6 +119,7 @@
         <property name="url" value="${crossref.url}"/>
     </bean>
     <bean id="CrossRefMetadataFieldMapping" class="org.dspace.importer.external.crossref.CrossRefFieldMapping"/>
+
     <bean id="EpoImportService" class="org.dspace.importer.external.epo.service.EpoImportMetadataSourceServiceImpl" scope="singleton">
         <property name="metadataFieldMapping" ref="epoMetadataFieldMapping"/>
         <property name="consumerKey" value="${epo.consumerKey}" />
@@ -133,6 +133,15 @@
     </bean>
     <bean id="epoMetadataFieldMapping" class="org.dspace.importer.external.epo.service.EpoFieldMapping"/>
 
+    <bean id="ScopusImportService" class="org.dspace.importer.external.scopus.service.ScopusImportMetadataSourceServiceImpl" scope="singleton">
+        <property name="metadataFieldMapping" ref="scopusMetadataFieldMapping"/>
+        <property name="url" value="${scopus.url}"/>
+        <property name="apiKey" value="${scopus.apiKey}"/>
+        <property name="instKey" value="${scopus.instToken}"/>
+        <property name="viewMode" value="${scopus.search-api.viewMode}"/>
+    </bean>
+    <bean id="scopusMetadataFieldMapping" class="org.dspace.importer.external.scopus.service.ScopusFieldMapping"/>
+
     <bean id="vufindImportService" class="org.dspace.importer.external.vufind.VuFindImportMetadataSourceServiceImpl" scope="singleton">
           <!-- Set to empty to use the default set of fields  -->
           <constructor-arg type="java.lang.String" value=""/>
@@ -148,6 +157,27 @@
     </bean>
     <bean id="scieloMetadataFieldMapping" class="org.dspace.importer.external.scielo.service.ScieloFieldMapping"/>
 
+    <bean id="WosImportService" class="org.dspace.importer.external.wos.service.WOSImportMetadataSourceServiceImpl" scope="singleton">
+        <property name="metadataFieldMapping" ref="wosMetadataFieldMapping"/>
+        <property name="apiKey" value="${wos.apiKey}"/>
+        <property name="url" value="${wos.url}"/>
+        <property name="urlSearch" value="${wos.url.search}"/>
+    </bean>
+    <bean id="wosMetadataFieldMapping" class="org.dspace.importer.external.wos.service.WOSFieldMapping"/>
+
+    <bean id="PubmedEuropeImportService" class="org.dspace.importer.external.pubmedeurope.PubmedEuropeMetadataSourceServiceImpl" scope="singleton">
+        <property name="metadataFieldMapping" ref="PubmedEuropeMetadataFieldMapping"/>
+        <property name="url" value="${pubmedeurope.url}"/>
+    </bean>
+    <bean id="PubmedEuropeMetadataFieldMapping" class="org.dspace.importer.external.pubmedeurope.PubmedEuropeFieldMapping"/>
+
+    <bean id="CiniiImportService" class="org.dspace.importer.external.cinii.CiniiImportMetadataSourceServiceImpl" scope="singleton">
+        <property name="metadataFieldMapping" ref="CiniiMetadataFieldMapping"/>
+        <property name="url" value="${cinii.url}"/>
+        <property name="urlSearch" value="${cinii.url.search}"/>
+    </bean>
+    <bean id="CiniiMetadataFieldMapping" class="org.dspace.importer.external.cinii.CiniiFieldMapping"/>
+
     <bean id="ADSImportService" class="org.dspace.importer.external.ads.ADSImportMetadataSourceServiceImpl" scope="singleton">
         <property name="apiKey" value="${ads.key}" />
         <property name="url" value="${ads.url}" />

dspace-api/src/test/data/dspaceFolder/config/local.cfg

@@ -145,6 +145,8 @@ useProxies = true
 proxies.trusted.ipranges = 7.7.7.7
 proxies.trusted.include_ui_ip = true
 
+csvexport.dir = dspace-server-webapp/src/test/data/dspaceFolder/exports
+
 # For the tests we have to disable this health indicator because there isn't a mock server and the calculated status was DOWN
 management.health.solrOai.enabled = false
 

dspace-api/src/test/data/dspaceFolder/config/spring/api/external-services.xml

@@ -42,10 +42,10 @@
     </bean>
     <bean class="org.dspace.external.provider.impl.OrcidV3AuthorDataProvider" init-method="init">
         <property name="sourceIdentifier" value="orcid"/>
-        <property name="orcidUrl" value="${orcid.url}" />
-        <property name="clientId" value="${orcid.clientid}" />
-        <property name="clientSecret" value="${orcid.clientsecret}" />
-        <property name="OAUTHUrl" value="${orcid.oauth.url}" />
+        <property name="orcidUrl" value="${orcid.domain-url}" />
+        <property name="clientId" value="${orcid.application-client-id}" />
+        <property name="clientSecret" value="${orcid.application-client-secret}" />
+        <property name="OAUTHUrl" value="${orcid.token-url}" />
         <property name="orcidRestConnector" ref="orcidRestConnector"/>
         <property name="supportedEntityTypes">
             <list>
@@ -55,26 +55,30 @@
     </bean>
 
     <bean id="orcidRestConnector" class="org.dspace.external.OrcidRestConnector">
-        <constructor-arg value="${orcid.api.url}"/>
+        <constructor-arg value="${orcid.api-url}"/>
     </bean>
 
     <bean id="pubmedLiveImportDataProvider" class="org.dspace.external.provider.impl.LiveImportDataProvider">
-        <property name="metadataSource" ref="mockPubmedImportService"/>
+        <property name="metadataSource" ref="pubmedImportService"/>
         <property name="sourceIdentifier" value="pubmed"/>
         <property name="recordIdMetadata" value="dc.identifier.other"/>
+        <property name="supportedEntityTypes">
+            <list>
+                <value>Publication</value>
+                <value>none</value>
+            </list>
+        </property>
     </bean>
 
-    <bean id="mockPubmedImportService"
-          class="org.dspace.external.provider.impl.MockPubmedImportMetadataSourceServiceImpl">
-        <property name="metadataFieldMapping" ref="pubmedMetadataFieldMapping"/>
-        <property name="baseAddress" value="https://eutils.ncbi.nlm.nih.gov/entrez/eutils/"/>
-        <property name="supportedExtensions">
+    <bean id="scopusLiveImportDataProvider" class="org.dspace.external.provider.impl.LiveImportDataProvider">
+        <property name="metadataSource" ref="ScopusImportService"/>
+        <property name="sourceIdentifier" value="scopus"/>
+        <property name="recordIdMetadata" value="dc.identifier.scopus"/>
+        <property name="supportedEntityTypes">
             <list>
-                 <value>xml</value>
+                <value>Publication</value>
             </list>
         </property>
     </bean>
 
 </beans>
-
-

dspace-api/src/test/data/dspaceFolder/config/spring/api/scripts.xml

@@ -22,6 +22,11 @@
         <property name="dspaceRunnableClass" value="org.dspace.app.bulkedit.MetadataExportCli"/>
     </bean>
 
+    <bean id="metadata-export-search" class="org.dspace.app.bulkedit.MetadataExportSearchCliScriptConfiguration">
+        <property name="description" value="export metadata from a discovery search" />
+        <property name="dspaceRunnableClass" value="org.dspace.app.bulkedit.MetadataExportSearchCli" />
+    </bean>
+
     <bean id="curate"
           class="org.dspace.curate.CurationCliScriptConfiguration">
         <property name="description"
@@ -45,6 +50,11 @@
         <property name="dspaceRunnableClass" value="org.dspace.app.mediafilter.MediaFilterScript"/>
     </bean>
 
+    <bean id="solr-database-resync" class="org.dspace.app.solrdatabaseresync.SolrDatabaseResyncCliScriptConfiguration">
+        <property name="description" value="Update the database status of Items in solr"/>
+        <property name="dspaceRunnableClass" value="org.dspace.app.solrdatabaseresync.SolrDatabaseResyncCli"/>
+    </bean>
+
     <bean id="another-mock-script" class="org.dspace.scripts.MockDSpaceRunnableScriptConfiguration" scope="prototype">
         <property name="description" value="Mocking a script for testing purposes" />
         <property name="dspaceRunnableClass" value="org.dspace.scripts.impl.MockDSpaceRunnableScript"/>

dspace-api/src/test/java/org/dspace/app/bulkedit/MetadataExportSearchIT.java

@@ -0,0 +1,253 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+
+package org.dspace.app.bulkedit;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import java.io.File;
+import java.io.IOException;
+import java.io.Reader;
+import java.nio.charset.Charset;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+
+import com.google.common.io.Files;
+import com.opencsv.CSVReader;
+import com.opencsv.exceptions.CsvException;
+import org.apache.log4j.Logger;
+import org.dspace.AbstractIntegrationTestWithDatabase;
+import org.dspace.app.launcher.ScriptLauncher;
+import org.dspace.app.scripts.handler.impl.TestDSpaceRunnableHandler;
+import org.dspace.builder.CollectionBuilder;
+import org.dspace.builder.CommunityBuilder;
+import org.dspace.builder.ItemBuilder;
+import org.dspace.content.Collection;
+import org.dspace.content.Community;
+import org.dspace.content.Item;
+import org.dspace.discovery.DiscoverQuery;
+import org.dspace.discovery.SearchService;
+import org.dspace.discovery.SearchUtils;
+import org.dspace.services.ConfigurationService;
+import org.dspace.services.factory.DSpaceServicesFactory;
+import org.junit.Before;
+import org.junit.Ignore;
+import org.junit.Test;
+
+@Ignore
+public class MetadataExportSearchIT extends AbstractIntegrationTestWithDatabase {
+
+    private String subject1 = "subject1";
+    private String subject2 = "subject2";
+    private int numberItemsSubject1 = 30;
+    private int numberItemsSubject2 = 2;
+    private Item[] itemsSubject1 = new Item[numberItemsSubject1];
+    private Item[] itemsSubject2 = new Item[numberItemsSubject2];
+    private String filename;
+    private Collection collection;
+    private Logger logger = Logger.getLogger(MetadataExportSearchIT.class);
+    private ConfigurationService configurationService = DSpaceServicesFactory.getInstance().getConfigurationService();
+    private SearchService searchService = SearchUtils.getSearchService();
+
+    @Override
+    @Before
+    public void setUp() throws Exception {
+        super.setUp();
+
+        // dummy search so that the SearchService gets called in a test context first
+        DiscoverQuery query = new DiscoverQuery();
+        query.setMaxResults(0);
+        searchService.search(context, query);
+
+        context.turnOffAuthorisationSystem();
+        Community community = CommunityBuilder.createCommunity(context).build();
+        collection = CollectionBuilder.createCollection(context, community).build();
+        filename = configurationService.getProperty("dspace.dir")
+            + testProps.get("test.exportcsv").toString();
+
+
+        for (int i = 0; i < numberItemsSubject1; i++) {
+            itemsSubject1[i] = ItemBuilder.createItem(context, collection)
+                .withTitle(String.format("%s item %d", subject1, i))
+                .withSubject(subject1)
+                .withIssueDate("2020-09-" + i)
+                .build();
+        }
+
+        for (int i = 0; i < numberItemsSubject2; i++) {
+            itemsSubject2[i] = ItemBuilder.createItem(context, collection)
+                .withTitle(String.format("%s item %d", subject2, i))
+                .withSubject(subject2)
+                .withIssueDate("2021-09-" + i)
+                .build();
+        }
+        context.restoreAuthSystemState();
+    }
+
+    private void checkItemsPresentInFile(String filename, Item[] items) throws IOException, CsvException {
+        File file = new File(filename);
+        Reader reader = Files.newReader(file, Charset.defaultCharset());
+        CSVReader csvReader = new CSVReader(reader);
+
+
+        List<String[]> lines = csvReader.readAll();
+        //length + 1 is because of 1 row extra for the headers
+        assertEquals(items.length + 1, lines.size());
+
+        List<String> ids = new ArrayList<>();
+        //ignoring the first row as this only contains headers;
+        logger.debug("checking content of lines");
+        for (int i = 1; i < lines.size(); i++) {
+            logger.debug(String.join(", ", lines.get(i)));
+            ids.add(lines.get(i)[0]);
+        }
+
+        for (Item item : items) {
+            assertTrue(ids.contains(item.getID().toString()));
+        }
+    }
+
+    @Test
+    public void metadateExportSearchQueryTest() throws Exception {
+        int result = runDSpaceScript("metadata-export-search", "-q", "subject:" + subject1, "-n", filename);
+
+        assertEquals(0, result);
+        checkItemsPresentInFile(filename, itemsSubject1);
+
+
+        result = runDSpaceScript("metadata-export-search", "-q", "subject: " + subject2, "-n", filename);
+
+        assertEquals(0, result);
+        checkItemsPresentInFile(filename, itemsSubject2);
+    }
+
+    @Test
+    public void exportMetadataSearchSpecificContainerTest() throws Exception {
+        context.turnOffAuthorisationSystem();
+        Community community2 = CommunityBuilder.createCommunity(context).build();
+        Collection collection2 = CollectionBuilder.createCollection(context, community2).build();
+
+        int numberItemsDifferentCollection = 15;
+        Item[] itemsDifferentCollection = new Item[numberItemsDifferentCollection];
+        for (int i = 0; i < numberItemsDifferentCollection; i++) {
+            itemsDifferentCollection[i] = ItemBuilder.createItem(context, collection2)
+                .withTitle("item different collection " + i)
+                .withSubject(subject1)
+                .build();
+        }
+
+        //creating some items with a different subject to make sure the query still works
+        for (int i = 0; i < 5; i++) {
+            ItemBuilder.createItem(context, collection2)
+                .withTitle("item different collection, different subject " + i)
+                .withSubject(subject2)
+                .build();
+        }
+        context.restoreAuthSystemState();
+
+        int result = runDSpaceScript(
+            "metadata-export-search", "-q", "subject: " + subject1, "-s", collection2.getID().toString(), "-n", filename
+        );
+
+        assertEquals(0, result);
+        checkItemsPresentInFile(filename, itemsDifferentCollection);
+    }
+
+    @Test
+    public void exportMetadataSearchFilter() throws Exception {
+        int result = runDSpaceScript("metadata-export-search", "-f", "subject,equals=" + subject1, "-n", filename);
+
+        assertEquals(0, result);
+        checkItemsPresentInFile(filename, itemsSubject1);
+    }
+
+    @Test
+    public void exportMetadataSearchFilterDate() throws Exception {
+        int result = runDSpaceScript(
+            "metadata-export-search", "-f", "dateIssued,equals=[2000 TO 2020]", "-n", filename
+        );
+
+        assertEquals(0, result);
+        checkItemsPresentInFile(filename, itemsSubject1);
+    }
+
+    @Test
+    public void exportMetadataSearchMultipleFilters() throws Exception {
+        int result = runDSpaceScript(
+            "metadata-export-search", "-f", "subject,equals=" + subject1, "-f",
+            "title,equals=" + String.format("%s item %d", subject1, 0), "-n", filename
+        );
+
+        assertEquals(0, result);
+        Item[] expectedResult = Arrays.copyOfRange(itemsSubject1, 0, 1);
+        checkItemsPresentInFile(filename, expectedResult);
+    }
+
+    @Test
+    public void exportMetadataSearchEqualsFilterTest()
+        throws Exception {
+        context.turnOffAuthorisationSystem();
+        Item wellBeingItem = ItemBuilder.createItem(context, collection)
+            .withTitle("test item well-being")
+            .withSubject("well-being")
+            .build();
+
+        ItemBuilder.createItem(context, collection)
+            .withTitle("test item financial well-being")
+            .withSubject("financial well-being")
+            .build();
+
+        context.restoreAuthSystemState();
+
+        int result = runDSpaceScript("metadata-export-search", "-f", "subject,equals=well-being", "-n", filename);
+
+        assertEquals(0, result);
+        Item[] expectedResult = new Item[] {wellBeingItem};
+        checkItemsPresentInFile(filename, expectedResult);
+    }
+
+    @Test
+    public void exportMetadataSearchInvalidDiscoveryQueryTest() throws Exception {
+        int result = runDSpaceScript("metadata-export-search", "-q", "blabla", "-n", filename);
+
+        assertEquals(0, result);
+        Item[] items = {};
+        checkItemsPresentInFile(filename, items);
+    }
+
+    @Test
+    public void exportMetadataSearchNoResultsTest() throws Exception {
+        int result = runDSpaceScript(
+            "metadata-export-search", "-f", "subject,equals=notExistingSubject", "-n", filename
+        );
+
+        assertEquals(0, result);
+        Item[] items = {};
+        checkItemsPresentInFile(filename, items);
+    }
+
+    @Test
+    public void exportMetadataSearchNonExistinFacetsTest() throws Exception {
+        TestDSpaceRunnableHandler testDSpaceRunnableHandler = new TestDSpaceRunnableHandler();
+
+        String[] args = new String[] {"metadata-export-search", "-f", "nonExisting,equals=" + subject1, "-f",
+            "title,equals=" + String.format("%s item %d", subject1, 0), "-n", filename};
+        int result = ScriptLauncher.handleScript(
+            args, ScriptLauncher.getConfig(kernelImpl), testDSpaceRunnableHandler, kernelImpl
+        );
+
+        assertEquals(0, result);  // exception should be handled, so the script should finish with 0
+
+        Exception exception = testDSpaceRunnableHandler.getException();
+        assertNotNull(exception);
+        assertEquals("nonExisting is not a valid search filter", exception.getMessage());
+    }
+}

dspace-api/src/test/java/org/dspace/app/solrdatabaseresync/SolrDatabaseResyncIT.java

@@ -0,0 +1,154 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.solrdatabaseresync;
+
+import static org.dspace.discovery.indexobject.ItemIndexFactoryImpl.STATUS_FIELD;
+import static org.dspace.discovery.indexobject.ItemIndexFactoryImpl.STATUS_FIELD_PREDB;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+
+import java.util.List;
+
+import org.apache.commons.collections.CollectionUtils;
+import org.apache.solr.client.solrj.SolrQuery;
+import org.apache.solr.client.solrj.response.QueryResponse;
+import org.apache.solr.common.SolrDocumentList;
+import org.dspace.AbstractIntegrationTestWithDatabase;
+import org.dspace.app.launcher.ScriptLauncher;
+import org.dspace.app.scripts.handler.impl.TestDSpaceRunnableHandler;
+import org.dspace.builder.CollectionBuilder;
+import org.dspace.builder.CommunityBuilder;
+import org.dspace.builder.ItemBuilder;
+import org.dspace.content.Collection;
+import org.dspace.content.Item;
+import org.dspace.content.factory.ContentServiceFactory;
+import org.dspace.content.service.CollectionService;
+import org.dspace.discovery.MockSolrSearchCore;
+import org.dspace.kernel.ServiceManager;
+import org.dspace.services.ConfigurationService;
+import org.dspace.services.factory.DSpaceServicesFactory;
+import org.junit.Before;
+import org.junit.Test;
+
+public class SolrDatabaseResyncIT extends AbstractIntegrationTestWithDatabase {
+
+    private final ConfigurationService configurationService =
+            DSpaceServicesFactory.getInstance().getConfigurationService();
+
+    private final CollectionService collectionService =
+            ContentServiceFactory.getInstance().getCollectionService();
+
+    private MockSolrSearchCore searchService;
+
+    private Collection col;
+    private Item item1;
+    private Item item2;
+
+    @Before
+    public void setUp() throws Exception {
+        super.setUp();
+        configurationService.setProperty("solr-database-resync.time-until-reindex", 1);
+
+        ServiceManager serviceManager = DSpaceServicesFactory.getInstance().getServiceManager();
+        searchService = serviceManager.getServiceByName(null, MockSolrSearchCore.class);
+
+        context.turnOffAuthorisationSystem();
+
+        parentCommunity = CommunityBuilder.createCommunity(context).withName("Parent Community").build();
+        col = CollectionBuilder.createCollection(context, parentCommunity).withName("Collection").build();
+
+        item1 = ItemBuilder.createItem(context, col)
+                .withTitle("Public item 1")
+                .withIssueDate("2010-10-17")
+                .withAuthor("Smith, Donald")
+                .withSubject("ExtraEntry")
+                .build();
+        item2 = ItemBuilder.createItem(context, col)
+                .withTitle("Public item 2")
+                .withIssueDate("2011-08-13")
+                .withAuthor("Smith, Maria")
+                .withSubject("TestingForMore")
+                .build();
+
+        context.setDispatcher("noindex");
+    }
+
+    @Test
+    public void solrPreDBStatusExistingItemTest() throws Exception {
+        // Items were created, they should contain a predb status in solr
+        assertHasPreDBStatus(item1);
+        assertHasPreDBStatus(item2);
+
+        performSolrDatabaseResyncScript();
+
+        // Database status script was performed, their predb status should be removed
+        assertHasNoPreDBStatus(item1);
+        assertHasNoPreDBStatus(item2);
+
+        context.restoreAuthSystemState();
+    }
+
+    @Test
+    public void solrPreDBStatusRemovedItemTest() throws Exception {
+        // Items were created, they should contain a predb status in solr
+        assertHasPreDBStatus(item1);
+        assertHasPreDBStatus(item2);
+
+        collectionService.delete(context, col);
+
+        // Items were deleted, they should still contain a predb status in solr for now
+        assertHasPreDBStatus(item1);
+        assertHasPreDBStatus(item2);
+
+        performSolrDatabaseResyncScript();
+
+        // Database status script was performed, their solr document should have been removed
+        assertNoSolrDocument(item1);
+        assertNoSolrDocument(item2);
+
+        context.restoreAuthSystemState();
+    }
+
+    public void assertHasNoPreDBStatus(Item item) throws Exception {
+        assertNotEquals(STATUS_FIELD_PREDB, getStatus(item));
+    }
+
+    public void assertHasPreDBStatus(Item item) throws Exception {
+        assertEquals(STATUS_FIELD_PREDB, getStatus(item));
+    }
+
+    public void assertNoSolrDocument(Item item) throws Exception {
+        SolrDocumentList solrDocumentList = getSolrDocumentList(item);
+        assertEquals(0, solrDocumentList.size());
+    }
+
+    public String getStatus(Item item) throws Exception {
+        SolrDocumentList solrDocumentList = getSolrDocumentList(item);
+        List fieldValues = ((List) solrDocumentList.get(0).getFieldValues(STATUS_FIELD));
+        if (CollectionUtils.isNotEmpty(fieldValues)) {
+            return (String) fieldValues.get(0);
+        } else {
+            return null;
+        }
+    }
+
+    public SolrDocumentList getSolrDocumentList(Item item) throws Exception {
+        SolrQuery solrQuery = new SolrQuery();
+        solrQuery.setQuery("search.resourceid:" + item.getID());
+        QueryResponse queryResponse = searchService.getSolr().query(solrQuery);
+        return queryResponse.getResults();
+    }
+
+    public void performSolrDatabaseResyncScript() throws Exception {
+        String[] args = new String[] {"solr-database-resync"};
+        TestDSpaceRunnableHandler testDSpaceRunnableHandler = new TestDSpaceRunnableHandler();
+        ScriptLauncher
+                .handleScript(args, ScriptLauncher.getConfig(kernelImpl), testDSpaceRunnableHandler, kernelImpl);
+    }
+
+}

dspace-api/src/test/java/org/dspace/builder/AbstractBuilder.java

@@ -13,6 +13,7 @@ import java.util.List;
 import org.apache.commons.collections4.CollectionUtils;
 import org.apache.logging.log4j.LogManager;
 import org.apache.logging.log4j.Logger;
+import org.dspace.app.orcid.service.OrcidTokenService;
 import org.dspace.app.requestitem.factory.RequestItemServiceFactory;
 import org.dspace.app.requestitem.service.RequestItemService;
 import org.dspace.authorize.AuthorizeException;
@@ -45,6 +46,7 @@ import org.dspace.eperson.service.RegistrationDataService;
 import org.dspace.scripts.factory.ScriptServiceFactory;
 import org.dspace.scripts.service.ProcessService;
 import org.dspace.services.factory.DSpaceServicesFactory;
+import org.dspace.utils.DSpace;
 import org.dspace.versioning.factory.VersionServiceFactory;
 import org.dspace.versioning.service.VersionHistoryService;
 import org.dspace.versioning.service.VersioningService;
@@ -95,6 +97,7 @@ public abstract class AbstractBuilder<T, S> {
     static ProcessService processService;
     static RequestItemService requestItemService;
     static VersioningService versioningService;
+    static OrcidTokenService orcidTokenService;
 
     protected Context context;
 
@@ -151,6 +154,7 @@ public abstract class AbstractBuilder<T, S> {
         inProgressUserService = XmlWorkflowServiceFactory.getInstance().getInProgressUserService();
         poolTaskService = XmlWorkflowServiceFactory.getInstance().getPoolTaskService();
         workflowItemRoleService = XmlWorkflowServiceFactory.getInstance().getWorkflowItemRoleService();
+        orcidTokenService = new DSpace().getSingletonService(OrcidTokenService.class);
     }
 
 
@@ -183,6 +187,7 @@ public abstract class AbstractBuilder<T, S> {
         processService = null;
         requestItemService = null;
         versioningService = null;
+        orcidTokenService = null;
 
     }
 

dspace-api/src/test/java/org/dspace/builder/AbstractDSpaceObjectBuilder.java

@@ -63,7 +63,7 @@ public abstract class AbstractDSpaceObjectBuilder<T extends DSpaceObject>
                                                                             final String qualifier,
                                                                             final String value) {
         try {
-            getService().addMetadata(context, dso, schema, element, qualifier, Item.ANY, value);
+            getService().addMetadata(context, dso, schema, element, qualifier, null, value);
         } catch (Exception e) {
             return handleException(e);
         }

dspace-api/src/test/java/org/dspace/builder/EPersonBuilder.java

@@ -129,6 +129,16 @@ public class EPersonBuilder extends AbstractDSpaceObjectBuilder<EPerson> {
         return this;
     }
 
+    public EPersonBuilder withOrcid(final String orcid) {
+        setMetadataSingleValue(ePerson, "eperson", "orcid", null, orcid);
+        return this;
+    }
+
+    public EPersonBuilder withOrcidScope(final String scope) {
+        addMetadataValue(ePerson, "eperson", "orcid", "scope", scope);
+        return this;
+    }
+
     public static void deleteEPerson(UUID uuid) throws SQLException, IOException {
         try (Context c = new Context()) {
             c.turnOffAuthorisationSystem();

dspace-api/src/test/java/org/dspace/builder/ItemBuilder.java

@@ -158,6 +158,30 @@ public class ItemBuilder extends AbstractDSpaceObjectBuilder<Item> {
         return addMetadataValue(item, "dspace", "object", "owner", null, value, authority, CF_ACCEPTED);
     }
 
+    public ItemBuilder withOrcidIdentifier(String orcid) {
+        return addMetadataValue(item, "person", "identifier", "orcid", orcid);
+    }
+
+    public ItemBuilder withOrcidAccessToken(String accessToken, EPerson owner) {
+
+        try {
+
+            OrcidTokenBuilder.create(context, owner, accessToken)
+                .withProfileItem(item)
+                .build();
+
+        } catch (SQLException | AuthorizeException e) {
+            throw new RuntimeException(e);
+        }
+
+        return this;
+
+    }
+
+    public ItemBuilder withOrcidAuthenticated(String authenticated) {
+        return addMetadataValue(item, "dspace", "orcid", "authenticated", authenticated);
+    }
+
     public ItemBuilder makeUnDiscoverable() {
         item.setDiscoverable(false);
         return this;

dspace-api/src/test/java/org/dspace/builder/OrcidTokenBuilder.java

@@ -0,0 +1,76 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.builder;
+
+import java.sql.SQLException;
+
+import org.dspace.app.orcid.OrcidToken;
+import org.dspace.app.orcid.service.OrcidTokenService;
+import org.dspace.authorize.AuthorizeException;
+import org.dspace.content.Item;
+import org.dspace.core.Context;
+import org.dspace.eperson.EPerson;
+
+/**
+ * Builder for {@link OrcidToken} entities.
+ *
+ * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+ *
+ */
+public class OrcidTokenBuilder extends AbstractBuilder<OrcidToken, OrcidTokenService> {
+
+    private OrcidToken orcidToken;
+
+    protected OrcidTokenBuilder(Context context) {
+        super(context);
+    }
+
+    public static OrcidTokenBuilder create(Context context, EPerson ePerson, String accessToken) {
+        OrcidTokenBuilder builder = new OrcidTokenBuilder(context);
+        builder.create(ePerson, accessToken);
+        return builder;
+    }
+
+    private void create(EPerson ePerson, String accessToken) {
+        orcidToken = orcidTokenService.create(context, ePerson, accessToken);
+    }
+
+    public OrcidTokenBuilder withProfileItem(Item profileItem) {
+        orcidToken.setProfileItem(profileItem);
+        return this;
+    }
+
+    @Override
+    public OrcidToken build() throws SQLException, AuthorizeException {
+        return orcidToken;
+    }
+
+    @Override
+    public void delete(Context c, OrcidToken orcidToken) throws Exception {
+        orcidTokenService.delete(c, orcidToken);
+    }
+
+    @Override
+    public void cleanup() throws Exception {
+        try (Context context = new Context()) {
+            context.setDispatcher("noindex");
+            context.turnOffAuthorisationSystem();
+            orcidToken = context.reloadEntity(orcidToken);
+            if (orcidToken != null) {
+                delete(context, orcidToken);
+                context.complete();
+            }
+        }
+    }
+
+    @Override
+    protected OrcidTokenService getService() {
+        return orcidTokenService;
+    }
+
+}

dspace-api/src/test/java/org/dspace/builder/ProcessBuilder.java

@@ -12,11 +12,13 @@ import java.sql.SQLException;
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.List;
+import java.util.Set;
 
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.ProcessStatus;
 import org.dspace.core.Context;
 import org.dspace.eperson.EPerson;
+import org.dspace.eperson.Group;
 import org.dspace.scripts.DSpaceCommandLineParameter;
 import org.dspace.scripts.Process;
 import org.dspace.scripts.service.ProcessService;
@@ -33,14 +35,22 @@ public class ProcessBuilder extends AbstractBuilder<Process, ProcessService> {
                                                List<DSpaceCommandLineParameter> parameters)
         throws SQLException {
         ProcessBuilder processBuilder = new ProcessBuilder(context);
-        return processBuilder.create(context, ePerson, scriptName, parameters);
+        return processBuilder.create(context, ePerson, scriptName, parameters, null);
+    }
+
+    public static ProcessBuilder createProcess(Context context, EPerson ePerson, String scriptName,
+                                               List<DSpaceCommandLineParameter> parameters,
+                                               Set<Group> specialGroups)
+        throws SQLException {
+        ProcessBuilder processBuilder = new ProcessBuilder(context);
+        return processBuilder.create(context, ePerson, scriptName, parameters, specialGroups);
     }
 
     private ProcessBuilder create(Context context, EPerson ePerson, String scriptName,
-                                  List<DSpaceCommandLineParameter> parameters)
+                                  List<DSpaceCommandLineParameter> parameters, final Set<Group> specialGroups)
         throws SQLException {
         this.context = context;
-        this.process = processService.create(context, ePerson, scriptName, parameters);
+        this.process = processService.create(context, ePerson, scriptName, parameters, specialGroups);
         this.process.setProcessStatus(ProcessStatus.SCHEDULED);
         return this;
     }

dspace-api/src/test/java/org/dspace/builder/util/AbstractBuilderCleanupUtil.java

@@ -25,6 +25,7 @@ import org.dspace.builder.GroupBuilder;
 import org.dspace.builder.ItemBuilder;
 import org.dspace.builder.MetadataFieldBuilder;
 import org.dspace.builder.MetadataSchemaBuilder;
+import org.dspace.builder.OrcidTokenBuilder;
 import org.dspace.builder.PoolTaskBuilder;
 import org.dspace.builder.ProcessBuilder;
 import org.dspace.builder.RelationshipBuilder;
@@ -56,6 +57,7 @@ public class AbstractBuilderCleanupUtil {
     }
 
     private void initMap() {
+        map.put(OrcidTokenBuilder.class.getName(), new ArrayList<>());
         map.put(ResourcePolicyBuilder.class.getName(), new ArrayList<>());
         map.put(RelationshipBuilder.class.getName(), new ArrayList<>());
         map.put(RequestItemBuilder.class.getName(), new ArrayList<>());

dspace-api/src/test/java/org/dspace/discovery/DiscoveryIT.java

@@ -8,13 +8,18 @@
 package org.dspace.discovery;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
 
 import java.io.IOException;
 import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Iterator;
 import java.util.List;
 import javax.servlet.http.HttpServletRequest;
 
 import org.dspace.AbstractIntegrationTestWithDatabase;
+import org.dspace.app.launcher.ScriptLauncher;
+import org.dspace.app.scripts.handler.impl.TestDSpaceRunnableHandler;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.builder.ClaimedTaskBuilder;
 import org.dspace.builder.CollectionBuilder;
@@ -86,6 +91,12 @@ public class DiscoveryIT extends AbstractIntegrationTestWithDatabase {
     MetadataAuthorityService metadataAuthorityService = ContentAuthorityServiceFactory.getInstance()
                                                                                       .getMetadataAuthorityService();
 
+    @Override
+    public void setUp() throws Exception {
+        super.setUp();
+        configurationService.setProperty("solr-database-resync.time-until-reindex", 1);
+    }
+
     @Test
     public void solrRecordsAfterDepositOrDeletionOfWorkspaceItemTest() throws Exception {
         context.turnOffAuthorisationSystem();
@@ -371,7 +382,8 @@ public class DiscoveryIT extends AbstractIntegrationTestWithDatabase {
         collectionService.delete(context, col1);
         context.restoreAuthSystemState();
         assertSearchQuery(IndexableCollection.TYPE, 2);
-        assertSearchQuery(IndexableItem.TYPE, 2);
+        // Deleted item contained within totalFound due to predb status (SolrDatabaseResyncCli takes care of this)
+        assertSearchQuery(IndexableItem.TYPE, 2, 3, 0, -1);
     }
 
     @Test
@@ -453,6 +465,10 @@ public class DiscoveryIT extends AbstractIntegrationTestWithDatabase {
         assertSearchQuery(IndexableCollection.TYPE, 2, 2, 0, -1);
         // check Item type with start=0 and limit=2, we expect: indexableObjects=2, totalFound=6
         assertSearchQuery(IndexableItem.TYPE, 2, 6, 0, 2);
+
+        // Run SolrDatabaseResyncCli, updating items with "preDB" status and removing stale items
+        performSolrDatabaseResyncScript();
+
         // check Item type with start=2 and limit=4, we expect: indexableObjects=1, totalFound=3
         assertSearchQuery(IndexableItem.TYPE, 1, 3, 2, 4);
         // check Item type with start=0 and limit=default, we expect: indexableObjects=3, totalFound=3
@@ -639,10 +655,79 @@ public class DiscoveryIT extends AbstractIntegrationTestWithDatabase {
         // check Item type with start=0 and limit=default,
         // we expect: indexableObjects=3, totalFound=6 (3 stale objects here)
         assertSearchQuery(IndexableItem.TYPE, 3, 6, 0, -1);
-        // as the previous query hit the stale objects running a new query should lead to a clean situation
+
+        // Run SolrDatabaseResyncCli, updating items with "preDB" status and removing stale items
+        performSolrDatabaseResyncScript();
+
+        // as SolrDatabaseResyncCli removed the stale objects, running a new query should lead to a clean situation
         assertSearchQuery(IndexableItem.TYPE, 3, 3, 0, -1);
     }
 
+    @Test
+    public void iteratorSearchServiceTest() throws SearchServiceException {
+        String subject1 = "subject1";
+        String subject2 = "subject2";
+        int numberItemsSubject1 = 30;
+        int numberItemsSubject2 = 2;
+        Item[] itemsSubject1 = new Item[numberItemsSubject1];
+        Item[] itemsSubject2 = new Item[numberItemsSubject2];
+        context.turnOffAuthorisationSystem();
+        Community community = CommunityBuilder.createCommunity(context).build();
+        Collection collection = CollectionBuilder.createCollection(context, community).build();
+        for (int i = 0; i < numberItemsSubject1; i++) {
+            itemsSubject1[i] = ItemBuilder.createItem(context, collection)
+                .withTitle("item subject 1 number" + i)
+                .withSubject(subject1)
+                .build();
+        }
+
+        for (int i = 0; i < numberItemsSubject2; i++) {
+            itemsSubject2[i] = ItemBuilder.createItem(context, collection)
+                .withTitle("item subject 2 number " + i)
+                .withSubject(subject2)
+                .build();
+        }
+
+        Collection collection2 = CollectionBuilder.createCollection(context, community).build();
+        ItemBuilder.createItem(context, collection2)
+            .withTitle("item collection2")
+            .withSubject(subject1)
+            .build();
+        context.restoreAuthSystemState();
+
+
+        DiscoverQuery discoverQuery = new DiscoverQuery();
+        discoverQuery.addFilterQueries("subject:" + subject1);
+
+        Iterator<Item> itemIterator =
+            searchService.iteratorSearch(context, new IndexableCollection(collection), discoverQuery);
+        int counter = 0;
+        List<Item> foundItems = new ArrayList<>();
+        while (itemIterator.hasNext()) {
+            foundItems.add(itemIterator.next());
+            counter++;
+        }
+        for (Item item : itemsSubject1) {
+            assertTrue(foundItems.contains(item));
+        }
+        assertEquals(numberItemsSubject1, counter);
+
+        discoverQuery = new DiscoverQuery();
+        discoverQuery.addFilterQueries("subject:" + subject2);
+
+        itemIterator = searchService.iteratorSearch(context, null, discoverQuery);
+        counter = 0;
+        foundItems = new ArrayList<>();
+        while (itemIterator.hasNext()) {
+            foundItems.add(itemIterator.next());
+            counter++;
+        }
+        assertEquals(numberItemsSubject2, counter);
+        for (Item item : itemsSubject2) {
+            assertTrue(foundItems.contains(item));
+        }
+    }
+
     private void assertSearchQuery(String resourceType, int size) throws SearchServiceException {
         assertSearchQuery(resourceType, size, size, 0, -1);
     }
@@ -739,6 +824,13 @@ public class DiscoveryIT extends AbstractIntegrationTestWithDatabase {
         context.setCurrentUser(previousUser);
     }
 
+    public void performSolrDatabaseResyncScript() throws Exception {
+        String[] args = new String[] {"solr-database-resync"};
+        TestDSpaceRunnableHandler testDSpaceRunnableHandler = new TestDSpaceRunnableHandler();
+        ScriptLauncher
+                .handleScript(args, ScriptLauncher.getConfig(kernelImpl), testDSpaceRunnableHandler, kernelImpl);
+    }
+
     private void abort(XmlWorkflowItem workflowItem)
             throws SQLException, AuthorizeException, IOException, SearchServiceException {
         final EPerson previousUser = context.getCurrentUser();

dspace-api/src/test/java/org/dspace/discovery/utils/DiscoverQueryBuilderTest.java

@@ -5,7 +5,7 @@
  *
  * http://www.dspace.org/license/
  */
-package org.dspace.app.rest.utils;
+package org.dspace.discovery.utils;
 
 import static java.util.Collections.emptyList;
 import static org.dspace.discovery.configuration.DiscoveryConfigurationParameters.SORT.COUNT;
@@ -16,10 +16,10 @@ import static org.hamcrest.Matchers.allOf;
 import static org.hamcrest.Matchers.contains;
 import static org.hamcrest.Matchers.containsInAnyOrder;
 import static org.hamcrest.Matchers.empty;
-import static org.hamcrest.Matchers.emptyOrNullString;
 import static org.hamcrest.Matchers.equalTo;
 import static org.hamcrest.Matchers.hasSize;
 import static org.hamcrest.Matchers.is;
+import static org.hamcrest.Matchers.isEmptyOrNullString;
 import static org.junit.Assert.assertThat;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
@@ -35,9 +35,6 @@ import java.util.LinkedList;
 import java.util.List;
 import java.util.function.Function;
 
-import org.dspace.app.rest.exception.DSpaceBadRequestException;
-import org.dspace.app.rest.exception.InvalidSearchRequestException;
-import org.dspace.app.rest.parameter.SearchFilter;
 import org.dspace.core.Context;
 import org.dspace.discovery.DiscoverFacetField;
 import org.dspace.discovery.DiscoverFilterQuery;
@@ -45,6 +42,7 @@ import org.dspace.discovery.DiscoverHitHighlightingField;
 import org.dspace.discovery.DiscoverQuery;
 import org.dspace.discovery.FacetYearRange;
 import org.dspace.discovery.IndexableObject;
+import org.dspace.discovery.SearchServiceException;
 import org.dspace.discovery.SolrServiceImpl;
 import org.dspace.discovery.configuration.DiscoveryConfiguration;
 import org.dspace.discovery.configuration.DiscoveryConfigurationParameters;
@@ -56,6 +54,7 @@ import org.dspace.discovery.configuration.DiscoverySortFieldConfiguration;
 import org.dspace.discovery.configuration.HierarchicalSidebarFacetConfiguration;
 import org.dspace.discovery.indexobject.IndexableItem;
 import org.dspace.discovery.indexobject.factory.IndexFactory;
+import org.dspace.discovery.utils.parameter.QueryBuilderSearchFilter;
 import org.dspace.services.ConfigurationService;
 import org.hamcrest.FeatureMatcher;
 import org.hamcrest.Matcher;
@@ -65,8 +64,7 @@ import org.junit.runner.RunWith;
 import org.mockito.InjectMocks;
 import org.mockito.Mock;
 import org.mockito.junit.MockitoJUnitRunner;
-import org.springframework.data.domain.PageRequest;
-import org.springframework.data.domain.Sort;
+
 
 /**
  * Unit tests for {@link DiscoverQueryBuilder}
@@ -94,8 +92,14 @@ public class DiscoverQueryBuilderTest {
 
     private DiscoveryConfiguration discoveryConfiguration;
     private String query;
-    private SearchFilter searchFilter;
-    private PageRequest page;
+
+    private int pageSize = 10;
+    private long offset = 10;
+    private String sortProperty = "dc.title";
+    private String sortDirection = "ASC";
+
+    private QueryBuilderSearchFilter searchFilter;
+
 
     @Before
     public void setUp() throws Exception {
@@ -109,14 +113,16 @@ public class DiscoverQueryBuilderTest {
                 .then(invocation -> invocation.getArguments()[0] + "_sort");
 
         when(searchService
-            .getFacetYearRange(eq(context), nullable(IndexableObject.class), any(DiscoverySearchFilterFacet.class),
+                     .getFacetYearRange(eq(context), nullable(IndexableObject.class),
+                                        any(DiscoverySearchFilterFacet.class),
                                         any(), any(DiscoverQuery.class)))
                 .then(invocation -> new FacetYearRange((DiscoverySearchFilterFacet) invocation.getArguments()[2]));
 
         when(searchService.toFilterQuery(any(Context.class), any(String.class), any(String.class), any(String.class),
                                          any(DiscoveryConfiguration.class)))
                 .then(invocation -> new DiscoverFilterQuery((String) invocation.getArguments()[1],
-                invocation.getArguments()[1] + ":\"" + invocation.getArguments()[3] + "\"",
+                                                            invocation.getArguments()[1] + ":\"" + invocation
+                                                                    .getArguments()[3] + "\"",
                                                             (String) invocation.getArguments()[3]));
 
         discoveryConfiguration = new DiscoveryConfiguration();
@@ -177,9 +183,8 @@ public class DiscoverQueryBuilderTest {
         discoveryConfiguration.setSidebarFacets(Arrays.asList(subjectFacet, dateFacet, hierarchyFacet));
         discoveryConfiguration.setSearchFilters(Arrays.asList(subjectFacet, dateFacet, hierarchyFacet));
 
+        searchFilter = new QueryBuilderSearchFilter("subject", "equals", "Java");
         query = "my test case";
-        searchFilter = new SearchFilter("subject", "equals", "Java");
-        page = PageRequest.of(1, 10, Sort.Direction.ASC, "dc.title");
 
         queryBuilder.afterPropertiesSet();
     }
@@ -188,7 +193,8 @@ public class DiscoverQueryBuilderTest {
     public void testBuildQuery() throws Exception {
 
         DiscoverQuery discoverQuery = queryBuilder
-            .buildQuery(context, scope, discoveryConfiguration, query, Arrays.asList(searchFilter), "item", page);
+                .buildQuery(context, scope, discoveryConfiguration, query, Collections.singletonList(searchFilter),
+                            "item", pageSize, offset, sortProperty, sortDirection);
 
         assertThat(discoverQuery.getFilterQueries(), containsInAnyOrder("archived:true", "subject:\"Java\""));
         assertThat(discoverQuery.getQuery(), is(query));
@@ -214,10 +220,11 @@ public class DiscoverQueryBuilderTest {
     @Test
     public void testBuildQueryDefaults() throws Exception {
         DiscoverQuery discoverQuery =
-            queryBuilder.buildQuery(context, null, discoveryConfiguration, null, null, emptyList(), null);
+                queryBuilder.buildQuery(context, null, discoveryConfiguration, null, null, emptyList(), null, null,
+                                        null, null);
 
         assertThat(discoverQuery.getFilterQueries(), containsInAnyOrder("archived:true"));
-        assertThat(discoverQuery.getQuery(), is(emptyOrNullString()));
+        assertThat(discoverQuery.getQuery(), isEmptyOrNullString());
         assertThat(discoverQuery.getDSpaceObjectFilters(), is(empty()));
         //Note this should actually be "dc.date.accessioned_dt"  but remember that our searchService is just a stupid
         // mock
@@ -241,13 +248,12 @@ public class DiscoverQueryBuilderTest {
 
     @Test
     public void testSortByScore() throws Exception {
-        page = PageRequest.of(2, 10, Sort.Direction.ASC, "SCORE");
-
         DiscoverQuery discoverQuery =
-            queryBuilder.buildQuery(context, null, discoveryConfiguration, null, null, emptyList(), page);
+                queryBuilder.buildQuery(context, null, discoveryConfiguration, null, null, emptyList(), 10, 20L,
+                                        "SCORE", "ASC");
 
         assertThat(discoverQuery.getFilterQueries(), containsInAnyOrder("archived:true"));
-        assertThat(discoverQuery.getQuery(), is(emptyOrNullString()));
+        assertThat(discoverQuery.getQuery(), isEmptyOrNullString());
         assertThat(discoverQuery.getDSpaceObjectFilters(), is(empty()));
         //Note this should actually be "dc.date.accessioned_dt"  but remember that our searchService is just a stupid
         // mock
@@ -269,48 +275,50 @@ public class DiscoverQueryBuilderTest {
         ));
     }
 
-    @Test(expected = DSpaceBadRequestException.class)
+    @Test(expected = IllegalArgumentException.class)
     public void testInvalidDSOType() throws Exception {
         queryBuilder
-            .buildQuery(context, scope, discoveryConfiguration, query, Arrays.asList(searchFilter), "TEST", page);
+                .buildQuery(context, scope, discoveryConfiguration, query, Collections.singletonList(searchFilter),
+                            "TEST", pageSize, offset, sortProperty, sortDirection);
     }
 
-    @Test(expected = InvalidSearchRequestException.class)
+    @Test(expected = SearchServiceException.class)
     public void testInvalidSortField() throws Exception {
-        page = PageRequest.of(2, 10, Sort.Direction.ASC, "test");
         queryBuilder
-            .buildQuery(context, scope, discoveryConfiguration, query, Arrays.asList(searchFilter), "ITEM", page);
+                .buildQuery(context, scope, discoveryConfiguration, query, Collections.singletonList(searchFilter),
+                            "ITEM", pageSize, 20L, "test", sortDirection);
     }
 
-    @Test(expected = DSpaceBadRequestException.class)
+    @Test(expected = IllegalArgumentException.class)
     public void testInvalidSearchFilter1() throws Exception {
-        searchFilter = new SearchFilter("test", "equals", "Smith, Donald");
+        searchFilter = new QueryBuilderSearchFilter("test", "equals", "Smith, Donald");
 
         queryBuilder
-            .buildQuery(context, scope, discoveryConfiguration, query, Arrays.asList(searchFilter), "ITEM", page);
+                .buildQuery(context, scope, discoveryConfiguration, query, Arrays.asList(searchFilter), "ITEM",
+                            pageSize, offset, sortProperty, sortDirection);
     }
 
-    @Test(expected = DSpaceBadRequestException.class)
+    @Test(expected = IllegalArgumentException.class)
     public void testInvalidSearchFilter2() throws Exception {
         when(searchService.toFilterQuery(any(Context.class), any(String.class), any(String.class), any(String.class),
                                          any(DiscoveryConfiguration.class)))
                 .thenThrow(SQLException.class);
 
         queryBuilder
-            .buildQuery(context, scope, discoveryConfiguration, query, Arrays.asList(searchFilter), "ITEM", page);
+                .buildQuery(context, scope, discoveryConfiguration, query, Arrays.asList(searchFilter), "ITEM",
+                            pageSize, offset, sortProperty, sortDirection);
     }
 
     @Test
     public void testBuildFacetQuery() throws Exception {
-        DiscoverQuery discoverQuery = queryBuilder.buildFacetQuery(context, scope, discoveryConfiguration,
-                                                            "prefix", query,
-                                                                   Arrays.asList(searchFilter), "item", page,
-                                                                   "subject");
+        DiscoverQuery discoverQuery = queryBuilder.buildFacetQuery(context, scope, discoveryConfiguration, "prefix",
+                                                                   query, Collections.singletonList(searchFilter),
+                                                                   "item", pageSize, offset, "subject");
 
         assertThat(discoverQuery.getFilterQueries(), containsInAnyOrder("archived:true", "subject:\"Java\""));
         assertThat(discoverQuery.getQuery(), is(query));
         assertThat(discoverQuery.getDSpaceObjectFilters(), contains(IndexableItem.TYPE));
-        assertThat(discoverQuery.getSortField(), is(emptyOrNullString()));
+        assertThat(discoverQuery.getSortField(), isEmptyOrNullString());
         assertThat(discoverQuery.getMaxResults(), is(0));
         assertThat(discoverQuery.getStart(), is(0));
         assertThat(discoverQuery.getFacetMinCount(), is(1));
@@ -321,10 +329,10 @@ public class DiscoverQueryBuilderTest {
         ));
     }
 
-    @Test(expected = DSpaceBadRequestException.class)
+    @Test(expected = IllegalArgumentException.class)
     public void testInvalidSearchFacet() throws Exception {
         queryBuilder.buildFacetQuery(context, scope, discoveryConfiguration, null, query,
-                Arrays.asList(searchFilter), "item", page, "test");
+                                     Collections.singletonList(searchFilter), "item", pageSize, offset, "test");
     }
 
     public Matcher<DiscoverFacetField> discoverFacetFieldMatcher(DiscoverFacetField expected) {

dspace-api/src/test/java/org/dspace/external/provider/impl/MockPubmedImportMetadataSourceServiceImpl.java

@@ -1,87 +0,0 @@
-/**
- * The contents of this file are subject to the license and copyright
- * detailed in the LICENSE and NOTICE files at the root of the source
- * tree and available online at
- *
- * http://www.dspace.org/license/
- */
-package org.dspace.external.provider.impl;
-
-import static org.mockito.Mockito.when;
-
-import java.io.IOException;
-import java.io.InputStream;
-import java.io.InputStreamReader;
-import java.io.Reader;
-import java.io.UncheckedIOException;
-import java.nio.charset.StandardCharsets;
-import javax.ws.rs.client.Invocation;
-import javax.ws.rs.client.WebTarget;
-import javax.ws.rs.core.MediaType;
-import javax.ws.rs.core.Response;
-
-import org.dspace.importer.external.pubmed.service.PubmedImportMetadataSourceServiceImpl;
-import org.mockito.ArgumentCaptor;
-import org.mockito.ArgumentMatchers;
-import org.mockito.Mockito;
-import org.mockito.invocation.InvocationOnMock;
-import org.mockito.stubbing.Answer;
-import org.springframework.util.FileCopyUtils;
-
-/**
- * we override the init method to mock the rest call to pubmed the following
- * mock definitions will allow to answer to efetch or esearch requests using the
- * test resource files (pubmed-esearch.fcgi.xml or pubmed-efetch.fcgi.xml)
- * 
- * @author Andrea Bollini (andrea.bollini at 4science.it)
- *
- */
-public class MockPubmedImportMetadataSourceServiceImpl extends PubmedImportMetadataSourceServiceImpl {
-
-    @Override
-    public void init() throws Exception {
-        pubmedWebTarget = Mockito.mock(WebTarget.class);
-        ArgumentCaptor<String> valueCapture = ArgumentCaptor.forClass(String.class);
-        when(pubmedWebTarget.queryParam(ArgumentMatchers.any(), ArgumentMatchers.any()))
-                .thenAnswer(new Answer<WebTarget>() {
-                    @Override
-                    public WebTarget answer(InvocationOnMock invocation) throws Throwable {
-                        return pubmedWebTarget;
-                    }
-                });
-        when(pubmedWebTarget.path(valueCapture.capture())).thenAnswer(new Answer<WebTarget>() {
-            @Override
-            public WebTarget answer(InvocationOnMock invocation) throws Throwable {
-                return pubmedWebTarget;
-            }
-        });
-        when(pubmedWebTarget.request(ArgumentMatchers.any(MediaType.class)))
-                .thenAnswer(new Answer<Invocation.Builder>() {
-                    @Override
-                    public Invocation.Builder answer(InvocationOnMock invocation) throws Throwable {
-                        Invocation.Builder builder = Mockito.mock(Invocation.Builder.class);
-                        when(builder.get()).thenAnswer(new Answer<Response>() {
-                            @Override
-                            public Response answer(InvocationOnMock invocation) throws Throwable {
-                                Response response = Mockito.mock(Response.class);
-                                when(response.readEntity(ArgumentMatchers.eq(String.class))).then(new Answer<String>() {
-                                    @Override
-                                    public String answer(InvocationOnMock invocation) throws Throwable {
-                                        String resourceName = "pubmed-" + valueCapture.getValue() + ".xml";
-                                        InputStream resource = getClass().getResourceAsStream(resourceName);
-                                        try (Reader reader = new InputStreamReader(resource, StandardCharsets.UTF_8)) {
-                                            return FileCopyUtils.copyToString(reader);
-                                        } catch (IOException e) {
-                                            throw new UncheckedIOException(e);
-                                        }
-                                    }
-                                });
-                                return response;
-                            }
-                        });
-                        return builder;
-                    };
-                });
-    }
-
-}

dspace-api/src/test/java/org/dspace/process/ProcessIT.java

@@ -0,0 +1,90 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.process;
+
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+
+import java.util.HashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Set;
+import java.util.UUID;
+
+import org.dspace.AbstractIntegrationTestWithDatabase;
+import org.dspace.builder.GroupBuilder;
+import org.dspace.builder.ProcessBuilder;
+import org.dspace.eperson.Group;
+import org.dspace.eperson.factory.EPersonServiceFactory;
+import org.dspace.eperson.service.GroupService;
+import org.dspace.scripts.Process;
+import org.dspace.scripts.factory.ScriptServiceFactory;
+import org.dspace.scripts.service.ProcessService;
+import org.junit.Test;
+
+/**
+ * This class will aim to test Process related use cases
+ *
+ * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.it)
+ */
+public class ProcessIT extends AbstractIntegrationTestWithDatabase {
+
+    protected ProcessService processService = ScriptServiceFactory.getInstance().getProcessService();
+    protected GroupService groupService = EPersonServiceFactory.getInstance().getGroupService();
+
+    @Test
+    public void checkProcessGroupsTest() throws Exception {
+        context.turnOffAuthorisationSystem();
+        Group groupA = GroupBuilder.createGroup(context)
+            .withName("Group A")
+            .addMember(admin)
+            .build();
+
+        Set<Group> groupSet = new HashSet<>();
+        groupSet.add(groupA);
+
+        Process processA = ProcessBuilder.createProcess(context, admin, "mock-script",
+                                                        new LinkedList<>(),
+                                                        groupSet).build();
+
+        context.restoreAuthSystemState();
+        Process process = processService.find(context, processA.getID());
+        List<Group> groups = process.getGroups();
+        boolean isPresent = groups.stream().anyMatch(g -> g.getID().equals(groupA.getID()));
+        assertTrue(isPresent);
+    }
+
+    @Test
+    public void removeOneGroupTest() throws Exception {
+
+        context.turnOffAuthorisationSystem();
+        Group groupA = GroupBuilder.createGroup(context)
+            .withName("Group A")
+            .addMember(admin).build();
+
+        Set<Group> groupSet = new HashSet<>();
+        groupSet.add(groupA);
+
+        UUID groupUuid = groupA.getID();
+        Process processA = ProcessBuilder.createProcess(context, admin, "mock-script", new LinkedList<>(),
+                                                        groupSet).build();
+
+        context.restoreAuthSystemState();
+
+        groupService.delete(context, groupA);
+        context.commit();
+        context.reloadEntity(groupA);
+        processA = context.reloadEntity(processA);
+
+        Process process = processService.find(context, processA.getID());
+        List<Group> groups = process.getGroups();
+        boolean isPresent = groups.stream().anyMatch(g -> g.getID().equals(groupUuid));
+        assertFalse(isPresent);
+
+    }
+}

dspace-server-webapp/src/main/java/org/dspace/app/rest/Application.java

@@ -20,6 +20,7 @@ import org.dspace.app.rest.utils.DSpaceAPIRequestLoggingFilter;
 import org.dspace.app.rest.utils.DSpaceConfigurationInitializer;
 import org.dspace.app.rest.utils.DSpaceKernelInitializer;
 import org.dspace.app.sitemap.GenerateSitemaps;
+import org.dspace.app.solrdatabaseresync.SolrDatabaseResyncCli;
 import org.dspace.app.util.DSpaceContextListener;
 import org.dspace.utils.servlet.DSpaceWebappServletFilter;
 import org.slf4j.Logger;
@@ -71,6 +72,11 @@ public class Application extends SpringBootServletInitializer {
         GenerateSitemaps.generateSitemapsScheduled();
     }
 
+    @Scheduled(cron = "${solr-database-resync.cron:-}")
+    public void solrDatabaseResync() throws Exception {
+        SolrDatabaseResyncCli.runScheduled();
+    }
+
     /**
      * Override the default SpringBootServletInitializer.configure() method,
      * passing it this Application class.

dspace-server-webapp/src/main/java/org/dspace/app/rest/authorization/impl/CanSynchronizeWithORCID.java

@@ -0,0 +1,83 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.app.rest.authorization.impl;
+
+import java.sql.SQLException;
+import java.util.List;
+import java.util.Objects;
+import java.util.UUID;
+import java.util.function.Predicate;
+
+import org.apache.commons.lang3.StringUtils;
+import org.dspace.app.rest.authorization.AuthorizationFeature;
+import org.dspace.app.rest.authorization.AuthorizationFeatureDocumentation;
+import org.dspace.app.rest.model.BaseObjectRest;
+import org.dspace.app.rest.model.ItemRest;
+import org.dspace.content.Item;
+import org.dspace.content.MetadataValue;
+import org.dspace.content.service.ItemService;
+import org.dspace.core.Context;
+import org.dspace.eperson.EPerson;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+/**
+ * The synchronization with ORCID feature. It can be used to verify
+ * if the user can synchronize with ORCID.
+ *
+ * @author Mohamed Eskander (mohamed.eskander at 4science.it)
+ */
+@Component
+@AuthorizationFeatureDocumentation(name = CanSynchronizeWithORCID.NAME,
+    description = "It can be used to verify if the user can synchronize with ORCID")
+public class CanSynchronizeWithORCID implements AuthorizationFeature {
+
+    public static final String NAME = "canSynchronizeWithORCID";
+
+    @Autowired
+    private ItemService itemService;
+
+    /**
+     * This method returns true if the BaseObjectRest object is an instance of
+     * {@link ItemRest}, there is a current user in the {@link Context} and it is
+     * the owner of that item. Otherwise this method returns false.
+     */
+    @Override
+    public boolean isAuthorized(Context context, BaseObjectRest object) throws SQLException {
+
+        EPerson ePerson = context.getCurrentUser();
+
+        if (!(object instanceof ItemRest) || Objects.isNull(ePerson)) {
+            return false;
+        }
+
+        String id = ((ItemRest) object).getId();
+        Item item = itemService.find(context, UUID.fromString(id));
+
+        return isDspaceObjectOwner(ePerson, item);
+    }
+
+    @Override
+    public String[] getSupportedTypes() {
+        return new String[] { ItemRest.CATEGORY + "." + ItemRest.NAME };
+    }
+
+    /**
+     * This method returns true if the given eperson is not null and if the given
+     * item has the metadata field dspace.object.owner with an authority equals to
+     * the uuid of the eperson. Otherwise this method returns false.
+     */
+    private boolean isDspaceObjectOwner(EPerson eperson, Item item) {
+        if (eperson == null) {
+            return false;
+        }
+        List<MetadataValue> owners = itemService.getMetadataByMetadataString(item, "dspace.object.owner");
+        Predicate<MetadataValue> checkOwner = v -> StringUtils.equals(v.getAuthority(), eperson.getID().toString());
+        return owners.stream().anyMatch(checkOwner);
+    }
+}

dspace-server-webapp/src/main/java/org/dspace/app/rest/converter/ResearcherProfileConverter.java

@@ -7,10 +7,24 @@
  */
 package org.dspace.app.rest.converter;
 
+import static org.dspace.app.orcid.model.OrcidEntityType.FUNDING;
+import static org.dspace.app.orcid.model.OrcidEntityType.PUBLICATION;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+import org.dspace.app.orcid.service.OrcidSynchronizationService;
+import org.dspace.app.profile.OrcidEntitySyncPreference;
+import org.dspace.app.profile.OrcidProfileSyncPreference;
+import org.dspace.app.profile.OrcidSynchronizationMode;
 import org.dspace.app.profile.ResearcherProfile;
 import org.dspace.app.rest.model.ResearcherProfileRest;
+import org.dspace.app.rest.model.ResearcherProfileRest.OrcidSynchronizationRest;
 import org.dspace.app.rest.projection.Projection;
 import org.dspace.content.Item;
+import org.dspace.core.Context;
+import org.dspace.web.ContextUtil;
+import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
 /**
@@ -23,6 +37,9 @@ import org.springframework.stereotype.Component;
 @Component
 public class ResearcherProfileConverter implements DSpaceConverter<ResearcherProfile, ResearcherProfileRest> {
 
+    @Autowired
+    private OrcidSynchronizationService orcidSynchronizationService;
+
     @Override
     public ResearcherProfileRest convert(ResearcherProfile profile, Projection projection) {
         ResearcherProfileRest researcherProfileRest = new ResearcherProfileRest();
@@ -33,9 +50,46 @@ public class ResearcherProfileConverter implements DSpaceConverter<ResearcherPro
 
         Item item = profile.getItem();
 
+        Context context = ContextUtil.obtainCurrentRequestContext();
+
+        if (orcidSynchronizationService.isLinkedToOrcid(context, item)) {
+            profile.getOrcid().ifPresent(researcherProfileRest::setOrcid);
+
+            OrcidSynchronizationRest orcidSynchronization = new OrcidSynchronizationRest();
+            orcidSynchronization.setMode(getMode(item));
+            orcidSynchronization.setProfilePreferences(getProfilePreferences(item));
+            orcidSynchronization.setFundingsPreference(getFundingsPreference(item));
+            orcidSynchronization.setPublicationsPreference(getPublicationsPreference(item));
+            researcherProfileRest.setOrcidSynchronization(orcidSynchronization);
+        }
+
         return researcherProfileRest;
     }
 
+    private String getPublicationsPreference(Item item) {
+        return orcidSynchronizationService.getEntityPreference(item, PUBLICATION)
+                                          .map(OrcidEntitySyncPreference::name)
+                                          .orElse(OrcidEntitySyncPreference.DISABLED.name());
+    }
+
+    private String getFundingsPreference(Item item) {
+        return orcidSynchronizationService.getEntityPreference(item, FUNDING)
+                                          .map(OrcidEntitySyncPreference::name)
+                                          .orElse(OrcidEntitySyncPreference.DISABLED.name());
+    }
+
+    private List<String> getProfilePreferences(Item item) {
+        return orcidSynchronizationService.getProfilePreferences(item).stream()
+                                          .map(OrcidProfileSyncPreference::name)
+                                          .collect(Collectors.toList());
+    }
+
+    private String getMode(Item item) {
+        return orcidSynchronizationService.getSynchronizationMode(item)
+                                          .map(OrcidSynchronizationMode::name)
+                                          .orElse(OrcidSynchronizationMode.MANUAL.name());
+    }
+
     @Override
     public Class<ResearcherProfile> getModelClass() {
         return ResearcherProfile.class;

dspace-server-webapp/src/main/java/org/dspace/app/rest/exception/InvalidSearchRequestException.java

@@ -7,11 +7,11 @@
  */
 package org.dspace.app.rest.exception;
 
-import org.dspace.app.rest.utils.DiscoverQueryBuilder;
+import org.dspace.app.rest.utils.RestDiscoverQueryBuilder;
 
 /**
  * This exception is thrown when the given search configuration
- * passed to {@link DiscoverQueryBuilder} is invalid
+ * passed to {@link RestDiscoverQueryBuilder} is invalid
  * 
  * @author Mykhaylo Boychuk (mykhaylo.boychuk at 4science.it)
  */

dspace-server-webapp/src/main/java/org/dspace/app/rest/model/ResearcherProfileRest.java

@@ -7,8 +7,10 @@
  */
 package org.dspace.app.rest.model;
 
+import java.util.List;
 import java.util.UUID;
 
+import com.fasterxml.jackson.annotation.JsonInclude;
 import org.dspace.app.rest.RestResourceController;
 
 /**
@@ -32,6 +34,12 @@ public class ResearcherProfileRest extends BaseObjectRest<UUID> {
 
     private boolean visible;
 
+    @JsonInclude(JsonInclude.Include.NON_NULL)
+    private String orcid;
+
+    @JsonInclude(JsonInclude.Include.NON_NULL)
+    private OrcidSynchronizationRest orcidSynchronization;
+
     public boolean isVisible() {
         return visible;
     }
@@ -40,6 +48,22 @@ public class ResearcherProfileRest extends BaseObjectRest<UUID> {
         this.visible = visible;
     }
 
+    public OrcidSynchronizationRest getOrcidSynchronization() {
+        return orcidSynchronization;
+    }
+
+    public void setOrcidSynchronization(OrcidSynchronizationRest orcidSynchronization) {
+        this.orcidSynchronization = orcidSynchronization;
+    }
+
+    public String getOrcid() {
+        return orcid;
+    }
+
+    public void setOrcid(String orcid) {
+        this.orcid = orcid;
+    }
+
     @Override
     public String getType() {
         return NAME;
@@ -54,4 +78,55 @@ public class ResearcherProfileRest extends BaseObjectRest<UUID> {
     public Class<?> getController() {
         return RestResourceController.class;
     }
+
+    /**
+     * Inner class to model ORCID synchronization preferences and mode.
+     *
+     * @author Luca Giamminonni (luca.giamminonni at 4science.it)
+     *
+     */
+    public static class OrcidSynchronizationRest {
+
+        private String mode;
+
+        private String publicationsPreference;
+
+        private String fundingsPreference;
+
+        private List<String> profilePreferences;
+
+        public String getMode() {
+            return mode;
+        }
+
+        public void setMode(String mode) {
+            this.mode = mode;
+        }
+
+        public List<String> getProfilePreferences() {
+            return profilePreferences;
+        }
+
+        public void setProfilePreferences(List<String> profilePreferences) {
+            this.profilePreferences = profilePreferences;
+        }
+
+        public String getPublicationsPreference() {
+            return publicationsPreference;
+        }
+
+        public void setPublicationsPreference(String publicationsPreference) {
+            this.publicationsPreference = publicationsPreference;
+        }
+
+        public String getFundingsPreference() {
+            return fundingsPreference;
+        }
+
+        public void setFundingsPreference(String fundingsPreference) {
+            this.fundingsPreference = fundingsPreference;
+        }
+
+    }
+
 }