Fix dspace-oai module per new code style

dspace-oai/pom.xml

@@ -1,4 +1,5 @@
-<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
     <modelVersion>4.0.0</modelVersion>
     <artifactId>dspace-oai</artifactId>
     <packaging>war</packaging>
@@ -104,8 +105,8 @@
                     <artifactId>xml-apis</artifactId>
                 </exclusion>
                 <exclusion>
-                     <groupId>org.apache.commons</groupId>
-                     <artifactId>commons-lang3</artifactId>
+                    <groupId>org.apache.commons</groupId>
+                    <artifactId>commons-lang3</artifactId>
                 </exclusion>
             </exclusions>
         </dependency>
@@ -156,8 +157,8 @@
                     <artifactId>javassist</artifactId>
                 </exclusion>
                 <exclusion>
-                     <groupId>org.apache.commons</groupId>
-                     <artifactId>commons-lang3</artifactId>
+                    <groupId>org.apache.commons</groupId>
+                    <artifactId>commons-lang3</artifactId>
                 </exclusion>
             </exclusions>
         </dependency>

dspace-oai/src/main/java/org/dspace/utils/DSpaceWebapp.java

@@ -16,17 +16,13 @@ import org.dspace.app.util.AbstractDSpaceWebapp;
  * @author Christian Scheible (christian.scheible at uni-konstanz dot de)
  */
 public class DSpaceWebapp
-        extends AbstractDSpaceWebapp
-{
-    public DSpaceWebapp()
-    {
+    extends AbstractDSpaceWebapp {
+    public DSpaceWebapp() {
         super("OAI");
     }
 
     @Override
-    public boolean isUI()
-    {
+    public boolean isUI() {
         return false;
     }
-}
- 
+}

dspace-oai/src/main/java/org/dspace/xoai/app/BasicConfiguration.java

@@ -7,16 +7,12 @@
  */
 package org.dspace.xoai.app;
 
-import org.dspace.xoai.services.impl.DSpaceFieldResolver;
-import org.dspace.xoai.services.impl.DSpaceHandleResolver;
-import org.dspace.xoai.services.impl.DSpaceEarliestDateResolver;
-import org.dspace.xoai.services.impl.DSpaceCollectionsService;
-import org.dspace.xoai.services.api.EarliestDateResolver;
-import org.dspace.xoai.services.api.CollectionsService;
-import org.dspace.xoai.services.api.HandleResolver;
-import org.dspace.xoai.services.api.FieldResolver;
 import com.lyncode.xoai.dataprovider.services.api.ResourceResolver;
 import org.apache.log4j.Logger;
+import org.dspace.xoai.services.api.CollectionsService;
+import org.dspace.xoai.services.api.EarliestDateResolver;
+import org.dspace.xoai.services.api.FieldResolver;
+import org.dspace.xoai.services.api.HandleResolver;
 import org.dspace.xoai.services.api.cache.XOAICacheService;
 import org.dspace.xoai.services.api.cache.XOAIItemCacheService;
 import org.dspace.xoai.services.api.cache.XOAILastCompilationCacheService;
@@ -30,6 +26,10 @@ import org.dspace.xoai.services.api.xoai.DSpaceFilterResolver;
 import org.dspace.xoai.services.api.xoai.IdentifyResolver;
 import org.dspace.xoai.services.api.xoai.ItemRepositoryResolver;
 import org.dspace.xoai.services.api.xoai.SetRepositoryResolver;
+import org.dspace.xoai.services.impl.DSpaceCollectionsService;
+import org.dspace.xoai.services.impl.DSpaceEarliestDateResolver;
+import org.dspace.xoai.services.impl.DSpaceFieldResolver;
+import org.dspace.xoai.services.impl.DSpaceHandleResolver;
 import org.dspace.xoai.services.impl.cache.DSpaceEmptyCacheService;
 import org.dspace.xoai.services.impl.cache.DSpaceXOAICacheService;
 import org.dspace.xoai.services.impl.cache.DSpaceXOAIItemCacheService;
@@ -63,7 +63,7 @@ public class BasicConfiguration {
 
 
     @Bean
-    public SolrServerResolver solrServerResolver () {
+    public SolrServerResolver solrServerResolver() {
         return new DSpaceSolrServerResolver();
     }
 
@@ -82,17 +82,18 @@ public class BasicConfiguration {
                 log.error("Not able to start XOAI normal cache service.", e);
                 return new DSpaceEmptyCacheService();
             }
-        } else
+        } else {
             return new DSpaceEmptyCacheService();
+        }
     }
 
     @Bean
-    public XOAILastCompilationCacheService xoaiLastCompilationCacheService () {
+    public XOAILastCompilationCacheService xoaiLastCompilationCacheService() {
         return new DSpaceXOAILastCompilationCacheService();
     }
 
     @Bean
-    public XOAIItemCacheService xoaiItemCacheService () {
+    public XOAIItemCacheService xoaiItemCacheService() {
         return new DSpaceXOAIItemCacheService();
     }
 
@@ -103,47 +104,47 @@ public class BasicConfiguration {
     }
 
     @Bean
-    public FieldResolver databaseService () {
+    public FieldResolver databaseService() {
         return new DSpaceFieldResolver();
     }
 
     @Bean
-    public EarliestDateResolver earliestDateResolver () {
+    public EarliestDateResolver earliestDateResolver() {
         return new DSpaceEarliestDateResolver();
     }
 
     @Bean
-    public ItemRepositoryResolver itemRepositoryResolver () {
+    public ItemRepositoryResolver itemRepositoryResolver() {
         return new DSpaceItemRepositoryResolver();
     }
 
     @Bean
-    public SetRepositoryResolver setRepositoryResolver () {
+    public SetRepositoryResolver setRepositoryResolver() {
         return new DSpaceSetRepositoryResolver();
     }
 
     @Bean
-    public IdentifyResolver identifyResolver () {
+    public IdentifyResolver identifyResolver() {
         return new DSpaceIdentifyResolver();
     }
 
     @Bean
-    public DSpaceFilterResolver dSpaceFilterResolver () {
+    public DSpaceFilterResolver dSpaceFilterResolver() {
         return new BaseDSpaceFilterResolver();
     }
 
     @Bean
-    public HandleResolver handleResolver () {
+    public HandleResolver handleResolver() {
         return new DSpaceHandleResolver();
     }
 
     @Bean
-    public CollectionsService collectionsService () {
+    public CollectionsService collectionsService() {
         return new DSpaceCollectionsService();
     }
 
     @Bean
-    public SolrQueryResolver solrQueryResolver () {
+    public SolrQueryResolver solrQueryResolver() {
         return new DSpaceSolrQueryResolver();
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/app/DSpaceWebappConfiguration.java

@@ -7,6 +7,8 @@
  */
 package org.dspace.xoai.app;
 
+import static java.lang.Integer.MAX_VALUE;
+
 import com.lyncode.jtwig.mvc.JtwigViewResolver;
 import org.dspace.xoai.services.api.xoai.ItemRepositoryResolver;
 import org.dspace.xoai.services.impl.xoai.DSpaceItemRepositoryResolver;
@@ -20,10 +22,8 @@ import org.springframework.web.servlet.config.annotation.EnableWebMvc;
 import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
 import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
 
-import static java.lang.Integer.MAX_VALUE;
-
-@Import({
-        BasicConfiguration.class
+@Import( {
+    BasicConfiguration.class
 })
 @Configuration
 @EnableWebMvc
@@ -53,6 +53,7 @@ public class DSpaceWebappConfiguration extends WebMvcConfigurerAdapter {
 
         return viewResolver;
     }
+
     @Bean
     public ItemRepositoryResolver xoaiItemRepositoryResolver() {
         return new DSpaceItemRepositoryResolver();

dspace-oai/src/main/java/org/dspace/xoai/app/XOAI.java

@@ -7,6 +7,21 @@
  */
 package org.dspace.xoai.app;
 
+import static com.lyncode.xoai.dataprovider.core.Granularity.Second;
+import static org.dspace.xoai.util.ItemUtils.retrieveMetadata;
+
+import java.io.ByteArrayOutputStream;
+import java.io.IOException;
+import java.net.ConnectException;
+import java.sql.SQLException;
+import java.text.ParseException;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.Date;
+import java.util.Iterator;
+import java.util.List;
+import javax.xml.stream.XMLStreamException;
+
 import com.lyncode.xoai.dataprovider.exceptions.ConfigurationException;
 import com.lyncode.xoai.dataprovider.exceptions.MetadataBindException;
 import com.lyncode.xoai.dataprovider.exceptions.WritingXmlException;
@@ -25,15 +40,18 @@ import org.apache.solr.common.SolrDocumentList;
 import org.apache.solr.common.SolrInputDocument;
 import org.dspace.authorize.factory.AuthorizeServiceFactory;
 import org.dspace.authorize.service.AuthorizeService;
-import org.dspace.content.*;
+import org.dspace.content.Bitstream;
+import org.dspace.content.Bundle;
 import org.dspace.content.Collection;
+import org.dspace.content.Community;
+import org.dspace.content.Item;
+import org.dspace.content.MetadataField;
+import org.dspace.content.MetadataValue;
 import org.dspace.content.factory.ContentServiceFactory;
 import org.dspace.content.service.ItemService;
 import org.dspace.core.ConfigurationManager;
 import org.dspace.core.Constants;
 import org.dspace.core.Context;
-import org.dspace.core.Utils;
-import org.dspace.handle.Handle;
 import org.dspace.xoai.exceptions.CompilingException;
 import org.dspace.xoai.services.api.CollectionsService;
 import org.dspace.xoai.services.api.cache.XOAICacheService;
@@ -47,17 +65,6 @@ import org.dspace.xoai.solr.exceptions.DSpaceSolrIndexerException;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 
-import javax.xml.stream.XMLStreamException;
-import java.io.ByteArrayOutputStream;
-import java.io.IOException;
-import java.net.ConnectException;
-import java.sql.SQLException;
-import java.text.ParseException;
-import java.util.*;
-
-import static com.lyncode.xoai.dataprovider.core.Granularity.Second;
-import static org.dspace.xoai.util.ItemUtils.retrieveMetadata;
-
 /**
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
@@ -133,15 +140,16 @@ public class XOAI {
                 result = this.indexAll();
             } else {
                 SolrQuery solrParams = new SolrQuery("*:*")
-                        .addField("item.lastmodified")
-                        .addSortField("item.lastmodified", ORDER.desc).setRows(1);
+                    .addField("item.lastmodified")
+                    .addSortField("item.lastmodified", ORDER.desc).setRows(1);
 
                 SolrDocumentList results = DSpaceSolrSearch.query(solrServerResolver.getServer(), solrParams);
                 if (results.getNumFound() == 0) {
                     System.out.println("There are no indexed documents, using full import.");
                     result = this.indexAll();
-                } else
+                } else {
                     result = this.index((Date) results.get(0).getFieldValue("item.lastmodified"));
+                }
 
             }
             solrServerResolver.getServer().commit();
@@ -163,13 +171,13 @@ public class XOAI {
 
     private int index(Date last) throws DSpaceSolrIndexerException {
         System.out
-                .println("Incremental import. Searching for documents modified after: "
-                        + last.toString());
+            .println("Incremental import. Searching for documents modified after: "
+                         + last.toString());
         // Index both in_archive items AND withdrawn items. Withdrawn items will be flagged withdrawn
         // (in order to notify external OAI harvesters of their new status)
         try {
             Iterator<Item> iterator = itemService.findInArchiveOrWithdrawnDiscoverableModifiedSince(
-                    context, last);
+                context, last);
             return this.index(iterator);
         } catch (SQLException ex) {
             throw new DSpaceSolrIndexerException(ex.getMessage(), ex);
@@ -182,7 +190,7 @@ public class XOAI {
             // Index both in_archive items AND withdrawn items. Withdrawn items will be flagged withdrawn
             // (in order to notify external OAI harvesters of their new status)
             Iterator<Item> iterator = itemService.findInArchiveOrWithdrawnDiscoverableModifiedSince(
-                    context, null);
+                context, null);
             return this.index(iterator);
         } catch (SQLException ex) {
             throw new DSpaceSolrIndexerException(ex.getMessage(), ex);
@@ -190,7 +198,7 @@ public class XOAI {
     }
 
     private int index(Iterator<Item> iterator)
-            throws DSpaceSolrIndexerException {
+        throws DSpaceSolrIndexerException {
         try {
             int i = 0;
             SolrServer server = solrServerResolver.getServer();
@@ -203,11 +211,13 @@ public class XOAI {
                     context.uncacheEntity(item);
 
                 } catch (SQLException | MetadataBindException | ParseException
-                        | XMLStreamException | WritingXmlException ex) {
+                    | XMLStreamException | WritingXmlException ex) {
                     log.error(ex.getMessage(), ex);
                 }
                 i++;
-                if (i % 100 == 0) System.out.println(i + " items imported so far...");
+                if (i % 100 == 0) {
+                    System.out.println(i + " items imported so far...");
+                }
             }
             System.out.println("Total: " + i + " items");
             server.commit();
@@ -217,7 +227,8 @@ public class XOAI {
         }
     }
 
-    private SolrInputDocument index(Item item) throws SQLException, MetadataBindException, ParseException, XMLStreamException, WritingXmlException {
+    private SolrInputDocument index(Item item)
+        throws SQLException, MetadataBindException, ParseException, XMLStreamException, WritingXmlException {
         SolrInputDocument doc = new SolrInputDocument();
         doc.addField("item.id", item.getID());
         boolean pub = this.isPublic(item);
@@ -229,20 +240,22 @@ public class XOAI {
             doc.addField("item.submitter", item.getSubmitter().getEmail());
         }
         doc.addField("item.deleted", item.isWithdrawn() ? "true" : "false");
-        for (Collection col : item.getCollections())
+        for (Collection col : item.getCollections()) {
             doc.addField("item.collections",
-                    "col_" + col.getHandle().replace("/", "_"));
-        for (Community com : collectionsService.flatParentCommunities(context, item))
+                         "col_" + col.getHandle().replace("/", "_"));
+        }
+        for (Community com : collectionsService.flatParentCommunities(context, item)) {
             doc.addField("item.communities",
-                    "com_" + com.getHandle().replace("/", "_"));
+                         "com_" + com.getHandle().replace("/", "_"));
+        }
 
         List<MetadataValue> allData = itemService.getMetadata(item,
-                Item.ANY, Item.ANY, Item.ANY, Item.ANY);
+                                                              Item.ANY, Item.ANY, Item.ANY, Item.ANY);
         for (MetadataValue dc : allData) {
             MetadataField field = dc.getMetadataField();
             String key = "metadata."
-                    + field.getMetadataSchema().getName() + "."
-                    + field.getElement();
+                + field.getMetadataSchema().getName() + "."
+                + field.getElement();
             if (field.getQualifier() != null) {
                 key += "." + field.getQualifier();
             }
@@ -286,8 +299,8 @@ public class XOAI {
     private static boolean getKnownExplanation(Throwable t) {
         if (t instanceof ConnectException) {
             System.err.println("Solr server ("
-                    + ConfigurationManager.getProperty("oai", "solr.url")
-                    + ") is down, turn it on.");
+                                   + ConfigurationManager.getProperty("oai", "solr.url")
+                                   + ") is down, turn it on.");
             return true;
         }
 
@@ -295,10 +308,12 @@ public class XOAI {
     }
 
     private static boolean searchForReason(Throwable t) {
-        if (getKnownExplanation(t))
+        if (getKnownExplanation(t)) {
             return true;
-        if (t.getCause() != null)
+        }
+        if (t.getCause() != null) {
             return searchForReason(t.getCause());
+        }
         return false;
     }
 
@@ -313,7 +328,8 @@ public class XOAI {
         }
     }
 
-    private static void cleanCache(XOAIItemCacheService xoaiItemCacheService,  XOAICacheService xoaiCacheService) throws IOException {
+    private static void cleanCache(XOAIItemCacheService xoaiItemCacheService, XOAICacheService xoaiCacheService)
+        throws IOException {
         System.out.println("Purging cached OAI responses.");
         xoaiItemCacheService.deleteAll();
         xoaiCacheService.deleteAll();
@@ -327,8 +343,8 @@ public class XOAI {
     public static void main(String[] argv) throws IOException, ConfigurationException {
 
 
-        AnnotationConfigApplicationContext applicationContext = new AnnotationConfigApplicationContext(new Class[]{
-                BasicConfiguration.class
+        AnnotationConfigApplicationContext applicationContext = new AnnotationConfigApplicationContext(new Class[] {
+            BasicConfiguration.class
         });
 
         ConfigurationService configurationService = applicationContext.getBean(ConfigurationService.class);
@@ -342,7 +358,7 @@ public class XOAI {
             Options options = new Options();
             options.addOption("c", "clear", false, "Clear index before indexing");
             options.addOption("o", "optimize", false,
-                    "Optimize index at the end");
+                              "Optimize index at the end");
             options.addOption("v", "verbose", false, "Verbose output");
             options.addOption("h", "help", false, "Shows some help");
             options.addOption("n", "number", true, "FOR DEVELOPMENT MUST DELETE");
@@ -378,14 +394,16 @@ public class XOAI {
                 if (COMMAND_IMPORT.equals(command)) {
                     ctx = new Context(Context.Mode.READ_ONLY);
                     XOAI indexer = new XOAI(ctx,
-                            line.hasOption('o'),
-                            line.hasOption('c'),
-                            line.hasOption('v'));
+                                            line.hasOption('o'),
+                                            line.hasOption('c'),
+                                            line.hasOption('v'));
 
                     applicationContext.getAutowireCapableBeanFactory().autowireBean(indexer);
 
                     int imported = indexer.index();
-                    if (imported > 0) cleanCache(itemCacheService, cacheService);
+                    if (imported > 0) {
+                        cleanCache(itemCacheService, cacheService);
+                    }
                 } else if (COMMAND_CLEAN_CACHE.equals(command)) {
                     cleanCache(itemCacheService, cacheService);
                 } else if (COMMAND_COMPILE_ITEMS.equals(command)) {
@@ -403,8 +421,8 @@ public class XOAI {
                 }
 
                 System.out.println("OAI 2.0 manager action ended. It took "
-                        + ((System.currentTimeMillis() - start) / 1000)
-                        + " seconds.");
+                                       + ((System.currentTimeMillis() - start) / 1000)
+                                       + " seconds.");
             } else {
                 usage();
             }
@@ -413,12 +431,11 @@ public class XOAI {
                 ex.printStackTrace();
             }
             log.error(ex.getMessage(), ex);
-        }
-        finally
-        {
+        } finally {
             // Abort our context, if still open
-            if(ctx!=null && ctx.isValid())
+            if (ctx != null && ctx.isValid()) {
                 ctx.abort();
+            }
         }
     }
 
@@ -442,7 +459,9 @@ public class XOAI {
 
             while (iterator.hasNext()) {
                 Item item = iterator.next();
-                if (verbose) System.out.println("Compiling item with handle: " + item.getHandle());
+                if (verbose) {
+                    System.out.println("Compiling item with handle: " + item.getHandle());
+                }
                 xoaiItemCacheService.put(item, retrieveMetadata(context, item));
             }
 

dspace-oai/src/main/java/org/dspace/xoai/controller/DSpaceOAIDataProvider.java

@@ -7,6 +7,21 @@
  */
 package org.dspace.xoai.controller;
 
+import static java.util.Arrays.asList;
+import static javax.servlet.http.HttpServletResponse.SC_BAD_REQUEST;
+import static org.apache.log4j.Logger.getLogger;
+
+import java.io.IOException;
+import java.io.OutputStream;
+import java.util.Enumeration;
+import java.util.HashMap;
+import java.util.List;
+import java.util.Map;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.xml.stream.XMLStreamException;
+
 import com.lyncode.xoai.dataprovider.OAIDataProvider;
 import com.lyncode.xoai.dataprovider.OAIRequestParameters;
 import com.lyncode.xoai.dataprovider.core.XOAIManager;
@@ -30,41 +45,30 @@ import org.springframework.ui.Model;
 import org.springframework.web.bind.annotation.PathVariable;
 import org.springframework.web.bind.annotation.RequestMapping;
 
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServletRequest;
-import javax.servlet.http.HttpServletResponse;
-import javax.xml.stream.XMLStreamException;
-import java.io.IOException;
-import java.io.OutputStream;
-import java.util.Enumeration;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-import static java.util.Arrays.asList;
-import static javax.servlet.http.HttpServletResponse.SC_BAD_REQUEST;
-import static org.apache.log4j.Logger.getLogger;
-
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
 @Controller
-public class DSpaceOAIDataProvider
-{
+public class DSpaceOAIDataProvider {
     private static final Logger log = getLogger(DSpaceOAIDataProvider.class);
 
-    @Autowired XOAICacheService cacheService;
-    @Autowired ContextService contextService;
-    @Autowired XOAIManagerResolver xoaiManagerResolver;
-    @Autowired ItemRepositoryResolver itemRepositoryResolver;
-    @Autowired IdentifyResolver identifyResolver;
-    @Autowired SetRepositoryResolver setRepositoryResolver;
+    @Autowired
+    XOAICacheService cacheService;
+    @Autowired
+    ContextService contextService;
+    @Autowired
+    XOAIManagerResolver xoaiManagerResolver;
+    @Autowired
+    ItemRepositoryResolver itemRepositoryResolver;
+    @Autowired
+    IdentifyResolver identifyResolver;
+    @Autowired
+    SetRepositoryResolver setRepositoryResolver;
 
     private DSpaceResumptionTokenFormatter resumptionTokenFormat = new DSpaceResumptionTokenFormatter();
 
     @RequestMapping("/")
-    public String indexAction (HttpServletResponse response, Model model) throws ServletException {
+    public String indexAction(HttpServletResponse response, Model model) throws ServletException {
         try {
             XOAIManager manager = xoaiManagerResolver.getManager();
             model.addAttribute("contexts", manager.getContextManager().getContexts());
@@ -77,7 +81,8 @@ public class DSpaceOAIDataProvider
     }
 
     @RequestMapping("/{context}")
-    public String contextAction (Model model, HttpServletRequest request, HttpServletResponse response, @PathVariable("context") String xoaiContext) throws IOException, ServletException {
+    public String contextAction(Model model, HttpServletRequest request, HttpServletResponse response,
+                                @PathVariable("context") String xoaiContext) throws IOException, ServletException {
         Context context = null;
         try {
             request.setCharacterEncoding("UTF-8");
@@ -86,10 +91,10 @@ public class DSpaceOAIDataProvider
             XOAIManager manager = xoaiManagerResolver.getManager();
 
             OAIDataProvider dataProvider = new OAIDataProvider(manager, xoaiContext,
-                    identifyResolver.getIdentify(),
-                    setRepositoryResolver.getSetRepository(),
-                    itemRepositoryResolver.getItemRepository(),
-                    resumptionTokenFormat);
+                                                               identifyResolver.getIdentify(),
+                                                               setRepositoryResolver.getSetRepository(),
+                                                               itemRepositoryResolver.getItemRepository(),
+                                                               resumptionTokenFormat);
 
             OutputStream out = response.getOutputStream();
             OAIRequestParameters parameters = new OAIRequestParameters(buildParametersMap(request));
@@ -100,11 +105,14 @@ public class DSpaceOAIDataProvider
             String identification = xoaiContext + parameters.requestID();
 
             if (cacheService.isActive()) {
-                if (!cacheService.hasCache(identification))
+                if (!cacheService.hasCache(identification)) {
                     cacheService.store(identification, dataProvider.handle(parameters));
+                }
 
                 cacheService.handle(identification, out);
-            } else dataProvider.handle(parameters, out);
+            } else {
+                dataProvider.handle(parameters, out);
+            }
 
 
             out.flush();
@@ -119,24 +127,25 @@ public class DSpaceOAIDataProvider
             log.error(e.getMessage(), e);
             closeContext(context);
             response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
-                    "Unexpected error while writing the output. For more information visit the log files.");
+                               "Unexpected error while writing the output. For more information visit the log files.");
         } catch (XOAIManagerResolverException e) {
-            throw new ServletException("OAI 2.0 wasn't correctly initialized, please check the log for previous errors", e);
+            throw new ServletException("OAI 2.0 wasn't correctly initialized, please check the log for previous errors",
+                                       e);
         } catch (OAIException e) {
             log.error(e.getMessage(), e);
             closeContext(context);
             response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
-                    "Unexpected error. For more information visit the log files.");
+                               "Unexpected error. For more information visit the log files.");
         } catch (WritingXmlException e) {
             log.error(e.getMessage(), e);
             closeContext(context);
             response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
-                    "Unexpected error while writing the output. For more information visit the log files.");
+                               "Unexpected error while writing the output. For more information visit the log files.");
         } catch (XMLStreamException e) {
             log.error(e.getMessage(), e);
             closeContext(context);
             response.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR,
-                    "Unexpected error while writing the output. For more information visit the log files.");
+                               "Unexpected error while writing the output. For more information visit the log files.");
         } finally {
             closeContext(context);
         }
@@ -145,20 +154,21 @@ public class DSpaceOAIDataProvider
     }
 
     private void closeContext(Context context) {
-        if (context != null && context.isValid())
+        if (context != null && context.isValid()) {
             context.abort();
+        }
     }
 
-	private Map<String, List<String>> buildParametersMap(
-			HttpServletRequest request) {
-		Map<String, List<String>> map = new HashMap<String, List<String>>();
-		Enumeration names = request.getParameterNames();
-		while (names.hasMoreElements()) {
-			String name = (String) names.nextElement();
-			String[] values = request.getParameterValues(name);
-			map.put(name, asList(values));
-		}
-		return map;
-	}
+    private Map<String, List<String>> buildParametersMap(
+        HttpServletRequest request) {
+        Map<String, List<String>> map = new HashMap<String, List<String>>();
+        Enumeration names = request.getParameterNames();
+        while (names.hasMoreElements()) {
+            String name = (String) names.nextElement();
+            String[] values = request.getParameterValues(name);
+            map.put(name, asList(values));
+        }
+        return map;
+    }
 
 }

dspace-oai/src/main/java/org/dspace/xoai/data/DSpaceItem.java

@@ -7,6 +7,10 @@
  */
 package org.dspace.xoai.data;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Pattern;
+
 import com.google.common.base.Predicate;
 import com.google.common.collect.Collections2;
 import com.google.common.collect.Lists;
@@ -16,101 +20,108 @@ import com.lyncode.xoai.dataprovider.xml.xoai.Element;
 import com.lyncode.xoai.dataprovider.xml.xoai.Element.Field;
 import org.dspace.core.ConfigurationManager;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.regex.Pattern;
-
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public abstract class DSpaceItem implements Item
-{
-	private static List<Element> filter (List<Element> input, String name) {
-    	return Lists.newArrayList(Collections2.filter(input, new MetadataNamePredicate(name)));
-    }
-    
-    private static List<Element> flat (List<Element> input) {
-    	List<Element> elems = new ArrayList<Element>();
-    	for (Element e : input) {
-    		if (e.getElement() != null) {
-    			elems.addAll(e.getElement());
-    		}
-    	}
-    	return elems;
-    }
-    
-    private static List<String> values (List<Element> input) {
-    	List<String> elems = new ArrayList<String>();
-    	for (Element e : input)
-    		if (e.getElement() != null && !e.getElement().isEmpty() && e.getElement().get(0).getField() != null)
-    			for (Field f : e.getElement().get(0).getField())
-    				if (f.getName() != null && f.getName().equals("value"))
-    					elems.add(f.getValue());
-    	return elems;
-    }
-    
-
-    private List<String> getMetadata (String schema, String element) {
-    	List<Element> metadata = this.getMetadata().getMetadata().getElement();
-    	return values(filter(flat(filter(metadata, schema)), element));
-    }
-    
-    private List<String> getMetadata (String schema, String element, String qualifier) {
-    	List<Element> metadata = this.getMetadata().getMetadata().getElement();
-    	return values(filter(flat(filter(flat(filter(metadata, schema)), element)), qualifier));
+public abstract class DSpaceItem implements Item {
+    private static List<Element> filter(List<Element> input, String name) {
+        return Lists.newArrayList(Collections2.filter(input, new MetadataNamePredicate(name)));
     }
 
-    
+    private static List<Element> flat(List<Element> input) {
+        List<Element> elems = new ArrayList<Element>();
+        for (Element e : input) {
+            if (e.getElement() != null) {
+                elems.addAll(e.getElement());
+            }
+        }
+        return elems;
+    }
+
+    private static List<String> values(List<Element> input) {
+        List<String> elems = new ArrayList<String>();
+        for (Element e : input) {
+            if (e.getElement() != null && !e.getElement().isEmpty() && e.getElement().get(0).getField() != null) {
+                for (Field f : e.getElement().get(0).getField()) {
+                    if (f.getName() != null && f.getName().equals("value")) {
+                        elems.add(f.getValue());
+                    }
+                }
+            }
+        }
+        return elems;
+    }
+
+
+    private List<String> getMetadata(String schema, String element) {
+        List<Element> metadata = this.getMetadata().getMetadata().getElement();
+        return values(filter(flat(filter(metadata, schema)), element));
+    }
+
+    private List<String> getMetadata(String schema, String element, String qualifier) {
+        List<Element> metadata = this.getMetadata().getMetadata().getElement();
+        return values(filter(flat(filter(flat(filter(metadata, schema)), element)), qualifier));
+    }
+
+
     private static String _prefix = null;
-    public static String buildIdentifier (String handle) {
-        if (_prefix == null)
-        {
+
+    public static String buildIdentifier(String handle) {
+        if (_prefix == null) {
             _prefix = ConfigurationManager.getProperty("oai",
-                    "identifier.prefix");
+                                                       "identifier.prefix");
         }
         return "oai:" + _prefix + ":" + handle;
     }
-    public static String parseHandle (String oaiIdentifier) {
-    	String[] parts = oaiIdentifier.split(Pattern.quote(":"));
-    	if (parts.length > 0) return parts[parts.length - 1];
-    	else return null; // Contract
+
+    public static String parseHandle(String oaiIdentifier) {
+        String[] parts = oaiIdentifier.split(Pattern.quote(":"));
+        if (parts.length > 0) {
+            return parts[parts.length - 1];
+        } else {
+            return null; // Contract
+        }
     }
-    
-    public List<String> getMetadata(String field)
-    {
+
+    public List<String> getMetadata(String field) {
         String[] parts = field.split(Pattern.quote("."));
-        if (parts.length == 2) return this.getMetadata(parts[0], parts[1]);
-        else if (parts.length == 3) return this.getMetadata(parts[0], parts[1], parts[2]);
-        else return new ArrayList<String>();
+        if (parts.length == 2) {
+            return this.getMetadata(parts[0], parts[1]);
+        } else if (parts.length == 3) {
+            return this.getMetadata(parts[0], parts[1], parts[2]);
+        } else {
+            return new ArrayList<String>();
+        }
     }
-    
-    @Override
-    public List<About> getAbout()
-    {
-        return new ArrayList<About>();
-    }
-    
-    protected abstract String getHandle ();
 
     @Override
-    public String getIdentifier()
-    {
-    	return buildIdentifier(getHandle());
+    public List<About> getAbout() {
+        return new ArrayList<About>();
+    }
+
+    protected abstract String getHandle();
+
+    @Override
+    public String getIdentifier() {
+        return buildIdentifier(getHandle());
     }
 
     private static class MetadataNamePredicate implements Predicate<Element> {
         private String name;
 
-        public MetadataNamePredicate (String n) {
+        public MetadataNamePredicate(String n) {
             name = n;
         }
 
         @Override
         public boolean apply(Element arg0) {
-            if (name == null) return false;
-            else if (name.equals(org.dspace.content.Item.ANY)) return true;
-            else return (name.toLowerCase().equals(arg0.getName().toLowerCase()));
+            if (name == null) {
+                return false;
+            } else if (name.equals(org.dspace.content.Item.ANY)) {
+                return true;
+            } else {
+                return (name.toLowerCase().equals(arg0.getName().toLowerCase()));
+            }
         }
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/data/DSpaceSet.java

@@ -7,38 +7,37 @@
  */
 package org.dspace.xoai.data;
 
+import com.lyncode.xoai.dataprovider.core.Set;
 import org.dspace.content.Collection;
 import org.dspace.content.Community;
 
-import com.lyncode.xoai.dataprovider.core.Set;
-
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
 public class DSpaceSet extends Set {
-	private static final String DefaultName = "undefined";
+    private static final String DefaultName = "undefined";
 
-	public static String checkName(String name) {
-		if (name != null && !name.trim().equals(""))
-			return name;
-		return DefaultName;
-	}
+    public static String checkName(String name) {
+        if (name != null && !name.trim().equals("")) {
+            return name;
+        }
+        return DefaultName;
+    }
 
-	public static Set newDSpaceCommunitySet(String handle, String name) {
+    public static Set newDSpaceCommunitySet(String handle, String name) {
 
-		return new Set("com_" + handle.replace('/', '_'), checkName(name));
-	}
+        return new Set("com_" + handle.replace('/', '_'), checkName(name));
+    }
 
-	public static Set newDSpaceCollectionSet(String handle, String name) {
-		return new Set("col_" + handle.replace('/', '_'), checkName(name));
-	}
+    public static Set newDSpaceCollectionSet(String handle, String name) {
+        return new Set("col_" + handle.replace('/', '_'), checkName(name));
+    }
 
-	public DSpaceSet(Community c) {
-		super("com_" + c.getHandle().replace('/', '_'), checkName(c.getName()));
-	}
+    public DSpaceSet(Community c) {
+        super("com_" + c.getHandle().replace('/', '_'), checkName(c.getName()));
+    }
 
-	public DSpaceSet(Collection c) {
-		super("col_" + c.getHandle().replace('/', '_'), checkName(c.getName()));
-	}
+    public DSpaceSet(Collection c) {
+        super("col_" + c.getHandle().replace('/', '_'), checkName(c.getName()));
+    }
 }

dspace-oai/src/main/java/org/dspace/xoai/data/DSpaceSolrItem.java

@@ -8,26 +8,23 @@
 package org.dspace.xoai.data;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Date;
 import java.util.List;
 
+import com.lyncode.xoai.dataprovider.core.ItemMetadata;
+import com.lyncode.xoai.dataprovider.core.ReferenceSet;
 import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
 import org.apache.solr.common.SolrDocument;
 
-import com.lyncode.xoai.dataprovider.core.ItemMetadata;
-import com.lyncode.xoai.dataprovider.core.ReferenceSet;
-import java.util.Collection;
-
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class DSpaceSolrItem extends DSpaceItem
-{
+public class DSpaceSolrItem extends DSpaceItem {
     private static final Logger log = LogManager
-            .getLogger(DSpaceSolrItem.class);
-    
+        .getLogger(DSpaceSolrItem.class);
+
     private final String unparsedMD;
     private ItemMetadata metadata;
     private final String handle;
@@ -35,8 +32,8 @@ public class DSpaceSolrItem extends DSpaceItem
     private final List<ReferenceSet> sets;
     private final boolean deleted;
 
-    public DSpaceSolrItem (SolrDocument doc) {
-    	log.debug("Creating OAI Item from Solr source");
+    public DSpaceSolrItem(SolrDocument doc) {
+        log.debug("Creating OAI Item from Solr source");
         unparsedMD = (String) doc.getFieldValue("item.compile");
         handle = (String) doc.getFieldValue("item.handle");
         lastMod = (Date) doc.getFieldValue("item.lastmodified");
@@ -45,21 +42,24 @@ public class DSpaceSolrItem extends DSpaceItem
         Collection<Object> fieldValues;
 
         fieldValues = doc.getFieldValues("item.communities");
-        if (null != fieldValues)
-            for (Object obj : fieldValues)
+        if (null != fieldValues) {
+            for (Object obj : fieldValues) {
                 sets.add(new ReferenceSet((String) obj));
+            }
+        }
 
         fieldValues = doc.getFieldValues("item.collections");
-        if (null != fieldValues)
-            for (Object obj : fieldValues)
+        if (null != fieldValues) {
+            for (Object obj : fieldValues) {
                 sets.add(new ReferenceSet((String) obj));
+            }
+        }
 
         deleted = (Boolean) doc.getFieldValue("item.deleted");
     }
 
     @Override
-    public ItemMetadata getMetadata()
-    {
+    public ItemMetadata getMetadata() {
         if (metadata == null) {
             metadata = new ItemMetadata(unparsedMD);
         }
@@ -67,26 +67,22 @@ public class DSpaceSolrItem extends DSpaceItem
     }
 
     @Override
-    public Date getDatestamp()
-    {
+    public Date getDatestamp() {
         return lastMod;
     }
 
     @Override
-    public List<ReferenceSet> getSets()
-    {
+    public List<ReferenceSet> getSets() {
         return sets;
     }
 
     @Override
-    public boolean isDeleted()
-    {
+    public boolean isDeleted() {
         return deleted;
     }
 
     @Override
-    protected String getHandle()
-    {
+    protected String getHandle() {
         return handle;
     }
 

dspace-oai/src/main/java/org/dspace/xoai/exceptions/CompilingException.java

@@ -9,29 +9,23 @@ package org.dspace.xoai.exceptions;
 
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
 @SuppressWarnings("serial")
-public class CompilingException extends Exception
-{
+public class CompilingException extends Exception {
 
-    public CompilingException()
-    {
+    public CompilingException() {
     }
 
-    public CompilingException(String arg0)
-    {
+    public CompilingException(String arg0) {
         super(arg0);
     }
 
-    public CompilingException(Throwable arg0)
-    {
+    public CompilingException(Throwable arg0) {
         super(arg0);
     }
 
-    public CompilingException(String arg0, Throwable arg1)
-    {
+    public CompilingException(String arg0, Throwable arg1) {
         super(arg0, arg1);
     }
 

dspace-oai/src/main/java/org/dspace/xoai/exceptions/InvalidMetadataFieldException.java

@@ -8,11 +8,9 @@
 package org.dspace.xoai.exceptions;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class InvalidMetadataFieldException extends Exception
-{
+public class InvalidMetadataFieldException extends Exception {
 
     private static final long serialVersionUID = 5187555092904394914L;
 

dspace-oai/src/main/java/org/dspace/xoai/filter/AndFilter.java

@@ -22,7 +22,8 @@ public class AndFilter extends DSpaceFilter {
 
     @Override
     public SolrFilterResult buildSolrQuery() {
-        return new SolrFilterResult("("+left.buildSolrQuery().getQuery()+") AND ("+right.buildSolrQuery().getQuery()+")");
+        return new SolrFilterResult(
+            "(" + left.buildSolrQuery().getQuery() + ") AND (" + right.buildSolrQuery().getQuery() + ")");
     }
 
     @Override

dspace-oai/src/main/java/org/dspace/xoai/filter/DSpaceAtLeastOneMetadataFilter.java

@@ -11,6 +11,11 @@ package org.dspace.xoai.filter;
 import java.util.ArrayList;
 import java.util.List;
 
+import com.google.common.base.Function;
+import com.lyncode.builder.ListBuilder;
+import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.ParameterList;
+import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.ParameterValue;
+import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.SimpleType;
 import org.apache.commons.lang.StringUtils;
 import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
@@ -19,12 +24,6 @@ import org.dspace.xoai.data.DSpaceItem;
 import org.dspace.xoai.filter.data.DSpaceMetadataFilterOperator;
 import org.dspace.xoai.filter.results.SolrFilterResult;
 
-import com.google.common.base.Function;
-import com.lyncode.builder.ListBuilder;
-import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.ParameterList;
-import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.ParameterValue;
-import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.SimpleType;
-
 /**
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
@@ -45,72 +44,87 @@ public class DSpaceAtLeastOneMetadataFilter extends DSpaceFilter {
     private List<String> getValues() {
         if (values == null) {
             ParameterValue parameterValue = getConfiguration().get("value");
-            if (parameterValue == null) parameterValue = getConfiguration().get("values");
+            if (parameterValue == null) {
+                parameterValue = getConfiguration().get("values");
+            }
 
             if (parameterValue instanceof SimpleType) {
                 values = new ArrayList<>();
                 values.add(((SimpleType) parameterValue).asString());
             } else if (parameterValue instanceof ParameterList) {
                 values = new ListBuilder<ParameterValue>()
-                        .add(parameterValue.asParameterList().getValues())
-                        .build(new Function<ParameterValue, String>() {
-                            @Override
-                            public String apply(ParameterValue elem) {
-                                return elem.asSimpleType().asString();
-                            }
-                        });
-            } else values = new ArrayList<>();
+                    .add(parameterValue.asParameterList().getValues())
+                    .build(new Function<ParameterValue, String>() {
+                        @Override
+                        public String apply(ParameterValue elem) {
+                            return elem.asSimpleType().asString();
+                        }
+                    });
+            } else {
+                values = new ArrayList<>();
+            }
         }
         return values;
     }
 
     private DSpaceMetadataFilterOperator getOperator() {
-        if (operator == DSpaceMetadataFilterOperator.UNDEF)
+        if (operator == DSpaceMetadataFilterOperator.UNDEF) {
             operator = DSpaceMetadataFilterOperator.valueOf(getConfiguration()
-                    .get("operator").asSimpleType().asString().toUpperCase());
+                                                                .get("operator").asSimpleType().asString()
+                                                                .toUpperCase());
+        }
         return operator;
     }
 
     @Override
     public boolean isShown(DSpaceItem item) {
-        if (this.getField() == null)
+        if (this.getField() == null) {
             return true;
+        }
         List<String> values = item.getMetadata(this.getField());
         for (String praticalValue : values) {
             for (String theoreticValue : this.getValues()) {
                 switch (this.getOperator()) {
                     case STARTS_WITH:
-                        if (praticalValue.startsWith(theoreticValue))
+                        if (praticalValue.startsWith(theoreticValue)) {
                             return true;
+                        }
                         break;
                     case ENDS_WITH:
-                        if (praticalValue.endsWith(theoreticValue))
+                        if (praticalValue.endsWith(theoreticValue)) {
                             return true;
+                        }
                         break;
                     case EQUAL:
-                        if (praticalValue.equals(theoreticValue))
+                        if (praticalValue.equals(theoreticValue)) {
                             return true;
+                        }
                         break;
                     case GREATER:
-                        if (praticalValue.compareTo(theoreticValue) > 0)
+                        if (praticalValue.compareTo(theoreticValue) > 0) {
                             return true;
+                        }
                         break;
                     case GREATER_OR_EQUAL:
-                        if (praticalValue.compareTo(theoreticValue) >= 0)
+                        if (praticalValue.compareTo(theoreticValue) >= 0) {
                             return true;
+                        }
                         break;
                     case LOWER:
-                        if (praticalValue.compareTo(theoreticValue) < 0)
+                        if (praticalValue.compareTo(theoreticValue) < 0) {
                             return true;
+                        }
                         break;
                     case LOWER_OR_EQUAL:
-                        if (praticalValue.compareTo(theoreticValue) <= 0)
+                        if (praticalValue.compareTo(theoreticValue) <= 0) {
                             return true;
+                        }
                         break;
                     case CONTAINS:
                     default:
-                        if (praticalValue.contains(theoreticValue))
+                        if (praticalValue.contains(theoreticValue)) {
                             return true;
+                        }
                         break;
                 }
             }
@@ -123,12 +137,13 @@ public class DSpaceAtLeastOneMetadataFilter extends DSpaceFilter {
         String field = this.getField();
         List<String> parts = new ArrayList<>();
         if (this.getField() != null) {
-            for (String v : this.getValues())
+            for (String v : this.getValues()) {
                 this.buildQuery("metadata." + field,
-                        ClientUtils.escapeQueryChars(v), parts);
+                                ClientUtils.escapeQueryChars(v), parts);
+            }
             if (parts.size() > 0) {
                 return new SolrFilterResult(StringUtils.join(parts.iterator(),
-                        " OR "));
+                                                             " OR "));
             }
         }
         return new SolrFilterResult();

dspace-oai/src/main/java/org/dspace/xoai/filter/DSpaceAuthorizationFilter.java

@@ -22,46 +22,41 @@ import org.dspace.xoai.data.DSpaceItem;
 import org.dspace.xoai.filter.results.SolrFilterResult;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class DSpaceAuthorizationFilter extends DSpaceFilter
-{
+public class DSpaceAuthorizationFilter extends DSpaceFilter {
     private static final Logger log = LogManager.getLogger(DSpaceAuthorizationFilter.class);
 
     private static final AuthorizeService authorizeService
-            = AuthorizeServiceFactory.getInstance().getAuthorizeService();
+        = AuthorizeServiceFactory.getInstance().getAuthorizeService();
 
     private static final HandleService handleService
-            = HandleServiceFactory.getInstance().getHandleService();
+        = HandleServiceFactory.getInstance().getHandleService();
 
     @Override
-    public boolean isShown(DSpaceItem item)
-    {
+    public boolean isShown(DSpaceItem item) {
         boolean pub = false;
-        try
-        {
+        try {
             // If Handle or Item are not found, return false
             String handle = DSpaceItem.parseHandle(item.getIdentifier());
-            if (handle == null)
+            if (handle == null) {
                 return false;
+            }
             Item dspaceItem = (Item) handleService.resolveToObject(context, handle);
-            if (dspaceItem == null)
+            if (dspaceItem == null) {
                 return false;
+            }
 
             // Check if READ access allowed on Item
             pub = authorizeService.authorizeActionBoolean(context, dspaceItem, Constants.READ);
-        }
-        catch (SQLException ex)
-        {
+        } catch (SQLException ex) {
             log.error(ex.getMessage(), ex);
         }
         return pub;
     }
 
     @Override
-    public SolrFilterResult buildSolrQuery()
-    {
+    public SolrFilterResult buildSolrQuery() {
         return new SolrFilterResult("item.public:true");
     }
 

dspace-oai/src/main/java/org/dspace/xoai/filter/DSpaceFilter.java

@@ -10,35 +10,37 @@ package org.dspace.xoai.filter;
 import com.lyncode.xoai.dataprovider.data.Filter;
 import com.lyncode.xoai.dataprovider.data.ItemIdentifier;
 import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.ParameterMap;
-
 import org.dspace.core.Context;
 import org.dspace.xoai.data.DSpaceItem;
 import org.dspace.xoai.filter.results.SolrFilterResult;
 import org.dspace.xoai.services.api.FieldResolver;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public abstract class DSpaceFilter implements Filter
-{
-    /** The configuration from xoai.xml file */
+public abstract class DSpaceFilter implements Filter {
+    /**
+     * The configuration from xoai.xml file
+     */
     protected ParameterMap configuration;
 
-    /** The configuration from xoai.xml file */
+    /**
+     * The configuration from xoai.xml file
+     */
     protected FieldResolver fieldResolver;
 
-    /** The oai context */
+    /**
+     * The oai context
+     */
     protected Context context;
 
     public abstract SolrFilterResult buildSolrQuery();
+
     public abstract boolean isShown(DSpaceItem item);
 
     @Override
-    public boolean isItemShown(ItemIdentifier item)
-    {
-        if (item instanceof DSpaceItem)
-        {
+    public boolean isItemShown(ItemIdentifier item) {
+        if (item instanceof DSpaceItem) {
             return isShown((DSpaceItem) item);
         }
         return false;
@@ -47,51 +49,42 @@ public abstract class DSpaceFilter implements Filter
     /**
      * @return the configuration map if defined in xoai.xml, otherwise null.
      */
-    public ParameterMap getConfiguration()
-    {
+    public ParameterMap getConfiguration() {
         return configuration;
     }
 
     /**
-     * @param configuration
-     *            the configuration map to set
+     * @param configuration the configuration map to set
      */
-    public void setConfiguration(ParameterMap configuration)
-    {
+    public void setConfiguration(ParameterMap configuration) {
         this.configuration = configuration;
     }
 
     /**
      * @return the fieldResolver
      */
-    public FieldResolver getFieldResolver()
-    {
+    public FieldResolver getFieldResolver() {
         return fieldResolver;
     }
 
     /**
-     * @param fieldResolver
-     *            the fieldResolver to set
+     * @param fieldResolver the fieldResolver to set
      */
-    public void setFieldResolver(FieldResolver fieldResolver)
-    {
+    public void setFieldResolver(FieldResolver fieldResolver) {
         this.fieldResolver = fieldResolver;
     }
 
     /**
      * @return the context
      */
-    public Context getContext()
-    {
+    public Context getContext() {
         return context;
     }
 
     /**
-     * @param context
-     *            the context to set
+     * @param context the context to set
      */
-    public void setContext(Context context)
-    {
+    public void setContext(Context context) {
         this.context = context;
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/filter/DSpaceMetadataExistsFilter.java

@@ -10,14 +10,13 @@ package org.dspace.xoai.filter;
 import java.util.ArrayList;
 import java.util.List;
 
+import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.ParameterValue;
+import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.SimpleType;
 import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
 import org.dspace.xoai.data.DSpaceItem;
 import org.dspace.xoai.filter.results.SolrFilterResult;
 
-import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.ParameterValue;
-import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.SimpleType;
-
 /**
  * This filter allows one to retrieve (from the data source) those items
  * which contains at least one metadata field value defined, it allows
@@ -30,22 +29,25 @@ import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.SimpleType;
  */
 public class DSpaceMetadataExistsFilter extends DSpaceFilter {
     private static final Logger log = LogManager
-            .getLogger(DSpaceMetadataExistsFilter.class);
+        .getLogger(DSpaceMetadataExistsFilter.class);
 
     private List<String> fields;
 
     private List<String> getFields() {
         if (this.fields == null) {
             ParameterValue fields = getConfiguration().get("fields");
-            if (fields == null) fields = getConfiguration().get("field");
+            if (fields == null) {
+                fields = getConfiguration().get("field");
+            }
 
             if (fields instanceof SimpleType) {
                 this.fields = new ArrayList<String>();
                 this.fields.add(((SimpleType) fields).asString());
             } else {
                 this.fields = new ArrayList<String>();
-                for (ParameterValue val : fields.asParameterList().getValues())
+                for (ParameterValue val : fields.asParameterList().getValues()) {
                     this.fields.add(val.asSimpleType().asString());
+                }
             }
 
         }
@@ -56,8 +58,9 @@ public class DSpaceMetadataExistsFilter extends DSpaceFilter {
     public boolean isShown(DSpaceItem item) {
         for (String field : this.getFields()) {
             //do we have a match? if yes, our job is done
-            if (item.getMetadata(field).size() > 0)
+            if (item.getMetadata(field).size() > 0) {
                 return true;
+            }
         }
         return false;
     }
@@ -68,8 +71,9 @@ public class DSpaceMetadataExistsFilter extends DSpaceFilter {
         List<String> fields = this.getFields();
         for (int i = 0; i < fields.size(); i++) {
             cond.append("metadata.").append(fields.get(i)).append(":[* TO *]");
-            if (i < fields.size() - 1)
+            if (i < fields.size() - 1) {
                 cond.append(" OR ");
+            }
         }
         cond.append(")");
 

dspace-oai/src/main/java/org/dspace/xoai/filter/DSpaceSetSpecFilter.java

@@ -18,57 +18,45 @@ import org.dspace.xoai.services.api.HandleResolver;
 
 
 /**
- *
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class DSpaceSetSpecFilter extends DSpaceFilter
-{
+public class DSpaceSetSpecFilter extends DSpaceFilter {
     private static final Logger log = LogManager.getLogger(DSpaceSetSpecFilter.class);
 
     private final String setSpec;
     private final HandleResolver handleResolver;
     private final CollectionsService collectionsService;
 
-    public DSpaceSetSpecFilter(CollectionsService collectionsService, HandleResolver handleResolver, String spec)
-    {
+    public DSpaceSetSpecFilter(CollectionsService collectionsService, HandleResolver handleResolver, String spec) {
         this.collectionsService = collectionsService;
         this.handleResolver = handleResolver;
         this.setSpec = spec;
     }
 
     @Override
-    public boolean isShown(DSpaceItem item)
-    {
-        for (ReferenceSet s : item.getSets())
-            if (s.getSetSpec().equals(setSpec))
+    public boolean isShown(DSpaceItem item) {
+        for (ReferenceSet s : item.getSets()) {
+            if (s.getSetSpec().equals(setSpec)) {
                 return true;
+            }
+        }
         return false;
     }
 
     @Override
-    public SolrFilterResult buildSolrQuery()
-    {
-        if (setSpec.startsWith("col_"))
-        {
-            try
-            {
+    public SolrFilterResult buildSolrQuery() {
+        if (setSpec.startsWith("col_")) {
+            try {
                 return new SolrFilterResult("item.collections:"
-                        + ClientUtils.escapeQueryChars(setSpec));
-            }
-            catch (Exception ex)
-            {
+                                                + ClientUtils.escapeQueryChars(setSpec));
+            } catch (Exception ex) {
                 log.error(ex.getMessage(), ex);
             }
-        }
-        else if (setSpec.startsWith("com_"))
-        {
-            try
-            {
+        } else if (setSpec.startsWith("com_")) {
+            try {
                 return new SolrFilterResult("item.communities:"
-                        + ClientUtils.escapeQueryChars(setSpec));
-            }
-            catch (Exception e)
-            {
+                                                + ClientUtils.escapeQueryChars(setSpec));
+            } catch (Exception e) {
                 log.error(e.getMessage(), e);
             }
         }

dspace-oai/src/main/java/org/dspace/xoai/filter/DSpaceWithdrawnFilter.java

@@ -18,14 +18,13 @@ import org.dspace.xoai.filter.results.SolrFilterResult;
  * http://www.openarchives.org/OAI/openarchivesprotocol.html#deletion
  * <P>
  * (Don't worry, a tombstone doesn't display the withdrawn item's metadata or files.)
- * 
+ *
  * @author Tim Donohue
  */
 public class DSpaceWithdrawnFilter extends DSpaceFilter {
 
     @Override
-    public boolean isShown(DSpaceItem item)
-    {
+    public boolean isShown(DSpaceItem item) {
         // For DSpace, if an Item is withdrawn, "isDeleted()" will be true.
         // In this scenario, we want a withdrawn item to be *shown* so that
         // we can properly respond with a "deleted" status via OAI-PMH.
@@ -35,8 +34,7 @@ public class DSpaceWithdrawnFilter extends DSpaceFilter {
     }
 
     @Override
-    public SolrFilterResult buildSolrQuery()
-    {
+    public SolrFilterResult buildSolrQuery() {
         // In Solr, we store withdrawn items as "deleted".
         // See org.dspace.xoai.app.XOAI, index(Item) method.
         return new SolrFilterResult("item.deleted:true");

dspace-oai/src/main/java/org/dspace/xoai/filter/DateFromFilter.java

@@ -7,6 +7,8 @@
  */
 package org.dspace.xoai.filter;
 
+import java.util.Date;
+
 import com.lyncode.builder.DateBuilder;
 import com.lyncode.xoai.dataprovider.services.api.DateProvider;
 import com.lyncode.xoai.dataprovider.services.impl.BaseDateProvider;
@@ -14,36 +16,31 @@ import org.apache.solr.client.solrj.util.ClientUtils;
 import org.dspace.xoai.data.DSpaceItem;
 import org.dspace.xoai.filter.results.SolrFilterResult;
 
-import java.util.Date;
-
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
 public class DateFromFilter extends DSpaceFilter {
     private static final DateProvider dateProvider = new BaseDateProvider();
     private final Date date;
 
-    public DateFromFilter(Date date)
-    {
+    public DateFromFilter(Date date) {
         this.date = new DateBuilder(date).setMinMilliseconds().build();
     }
 
     @Override
-    public boolean isShown(DSpaceItem item)
-    {
-        if (item.getDatestamp().compareTo(date) >= 0)
+    public boolean isShown(DSpaceItem item) {
+        if (item.getDatestamp().compareTo(date) >= 0) {
             return true;
+        }
         return false;
     }
 
     @Override
-    public SolrFilterResult buildSolrQuery()
-    {
+    public SolrFilterResult buildSolrQuery() {
         String format = dateProvider.format(date).replace("Z", ".000Z"); // Tweak to set the milliseconds
         return new SolrFilterResult("item.lastmodified:["
-                + ClientUtils.escapeQueryChars(format)
-                + " TO *]");
+                                        + ClientUtils.escapeQueryChars(format)
+                                        + " TO *]");
     }
 
 }

dspace-oai/src/main/java/org/dspace/xoai/filter/DateUntilFilter.java

@@ -7,6 +7,8 @@
  */
 package org.dspace.xoai.filter;
 
+import java.util.Date;
+
 import com.lyncode.builder.DateBuilder;
 import com.lyncode.xoai.dataprovider.services.api.DateProvider;
 import com.lyncode.xoai.dataprovider.services.impl.BaseDateProvider;
@@ -14,41 +16,34 @@ import org.apache.solr.client.solrj.util.ClientUtils;
 import org.dspace.xoai.data.DSpaceItem;
 import org.dspace.xoai.filter.results.SolrFilterResult;
 
-import java.util.Date;
-
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class DateUntilFilter extends DSpaceFilter
-{
+public class DateUntilFilter extends DSpaceFilter {
     private static final DateProvider dateProvider = new BaseDateProvider();
     private final Date date;
 
-    public DateUntilFilter(Date date)
-    {
+    public DateUntilFilter(Date date) {
         this.date = new DateBuilder(date).setMaxMilliseconds().build();
     }
 
     @Override
-    public boolean isShown(DSpaceItem item)
-    {
-        if (item.getDatestamp().compareTo(date) <= 0)
+    public boolean isShown(DSpaceItem item) {
+        if (item.getDatestamp().compareTo(date) <= 0) {
             return true;
+        }
         return false;
     }
 
     @Override
-    public SolrFilterResult buildSolrQuery()
-    {
+    public SolrFilterResult buildSolrQuery() {
         String format = dateProvider.format(date).replace("Z", ".999Z"); // Tweak to set the milliseconds
         // if date has timestamp of 00:00:00, switch it to refer to end of day
-        if (format.substring(11, 19).equals("00:00:00"))
-        {
+        if (format.substring(11, 19).equals("00:00:00")) {
             format = format.substring(0, 11) + "23:59:59" + format.substring(19);
         }
         return new SolrFilterResult("item.lastmodified:[* TO "
-                + ClientUtils.escapeQueryChars(format) + "]");
+                                        + ClientUtils.escapeQueryChars(format) + "]");
     }
 
 }

dspace-oai/src/main/java/org/dspace/xoai/filter/OrFilter.java

@@ -22,7 +22,8 @@ public class OrFilter extends DSpaceFilter {
 
     @Override
     public SolrFilterResult buildSolrQuery() {
-        return new SolrFilterResult("("+left.buildSolrQuery().getQuery()+") OR ("+right.buildSolrQuery().getQuery()+")");
+        return new SolrFilterResult(
+            "(" + left.buildSolrQuery().getQuery() + ") OR (" + right.buildSolrQuery().getQuery() + ")");
     }
 
     @Override

dspace-oai/src/main/java/org/dspace/xoai/filter/SolrFilterResult.java

@@ -11,35 +11,29 @@ import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class SolrFilterResult
-{
-	private static Logger log = LogManager.getLogger(SolrFilterResult.class);
+public class SolrFilterResult {
+    private static Logger log = LogManager.getLogger(SolrFilterResult.class);
     private String _where;
 
     private boolean _nothing;
 
-    public SolrFilterResult()
-    {
+    public SolrFilterResult() {
         _nothing = true;
     }
 
-    public SolrFilterResult(String query)
-    {
-    	log.debug("XOAI SolrQuery: "+ query);
+    public SolrFilterResult(String query) {
+        log.debug("XOAI SolrQuery: " + query);
         _nothing = false;
         _where = query;
     }
 
-    public boolean hasResult()
-    {
+    public boolean hasResult() {
         return !_nothing;
     }
 
-    public String getQuery()
-    {
+    public String getQuery() {
         return _where;
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/filter/data/DSpaceMetadataFilterOperator.java

@@ -9,7 +9,6 @@
 package org.dspace.xoai.filter.data;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
 public enum DSpaceMetadataFilterOperator {

dspace-oai/src/main/java/org/dspace/xoai/filter/results/SolrFilterResult.java

@@ -11,35 +11,29 @@ import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class SolrFilterResult
-{
-	private static Logger log = LogManager.getLogger(SolrFilterResult.class);
+public class SolrFilterResult {
+    private static Logger log = LogManager.getLogger(SolrFilterResult.class);
     private String _where;
 
     private boolean _nothing;
 
-    public SolrFilterResult()
-    {
+    public SolrFilterResult() {
         _nothing = true;
     }
 
-    public SolrFilterResult(String query)
-    {
-    	log.debug("XOAI SolrQuery: "+ query);
+    public SolrFilterResult(String query) {
+        log.debug("XOAI SolrQuery: " + query);
         _nothing = false;
         _where = query;
     }
 
-    public boolean hasResult()
-    {
+    public boolean hasResult() {
         return !_nothing;
     }
 
-    public String getQuery()
-    {
+    public String getQuery() {
         return _where;
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/CollectionsService.java

@@ -7,19 +7,22 @@
  */
 package org.dspace.xoai.services.api;
 
+import java.sql.SQLException;
+import java.util.List;
+import java.util.UUID;
+
 import org.dspace.content.Collection;
 import org.dspace.content.Community;
 import org.dspace.content.Item;
 import org.dspace.core.Context;
 import org.dspace.xoai.services.api.context.ContextService;
 
-import java.sql.SQLException;
-import java.util.List;
-import java.util.UUID;
-
 public interface CollectionsService {
     List<UUID> getAllSubCollections(ContextService contextService, UUID communityId) throws SQLException;
+
     List<Community> flatParentCommunities(Collection collection) throws SQLException;
+
     List<Community> flatParentCommunities(Community community) throws SQLException;
+
     List<Community> flatParentCommunities(Context context, Item item) throws SQLException;
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/EarliestDateResolver.java

@@ -7,12 +7,12 @@
  */
 package org.dspace.xoai.services.api;
 
-import org.dspace.core.Context;
-import org.dspace.xoai.exceptions.InvalidMetadataFieldException;
-
 import java.sql.SQLException;
 import java.util.Date;
 
+import org.dspace.core.Context;
+import org.dspace.xoai.exceptions.InvalidMetadataFieldException;
+
 public interface EarliestDateResolver {
-    public Date getEarliestDate (Context context) throws InvalidMetadataFieldException, SQLException;
+    public Date getEarliestDate(Context context) throws InvalidMetadataFieldException, SQLException;
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/FieldResolver.java

@@ -7,11 +7,11 @@
  */
 package org.dspace.xoai.services.api;
 
+import java.sql.SQLException;
+
 import org.dspace.core.Context;
 import org.dspace.xoai.exceptions.InvalidMetadataFieldException;
 
-import java.sql.SQLException;
-
 public interface FieldResolver {
     int getFieldID(Context context, String field) throws InvalidMetadataFieldException, SQLException;
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/HandleResolver.java

@@ -10,6 +10,7 @@ package org.dspace.xoai.services.api;
 import org.dspace.content.DSpaceObject;
 
 public interface HandleResolver {
-    DSpaceObject resolve (String handle) throws HandleResolverException;
-    String getHandle (DSpaceObject object) throws HandleResolverException;
+    DSpaceObject resolve(String handle) throws HandleResolverException;
+
+    String getHandle(DSpaceObject object) throws HandleResolverException;
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/ServiceResolver.java

@@ -8,5 +8,5 @@
 package org.dspace.xoai.services.api;
 
 public interface ServiceResolver {
-    <T> T getService (Class<T> type);
+    <T> T getService(Class<T> type);
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/cache/XOAICacheService.java

@@ -7,17 +7,22 @@
  */
 package org.dspace.xoai.services.api.cache;
 
-import com.lyncode.xoai.dataprovider.xml.oaipmh.OAIPMH;
-
 import java.io.IOException;
 import java.io.OutputStream;
 
+import com.lyncode.xoai.dataprovider.xml.oaipmh.OAIPMH;
+
 
 public interface XOAICacheService {
-    boolean isActive ();
-    boolean hasCache (String requestID);
-    void handle (String requestID, OutputStream out) throws IOException;
-    void store (String requestID, OAIPMH response) throws IOException;
-    void delete (String requestID);
-    void deleteAll () throws IOException;
+    boolean isActive();
+
+    boolean hasCache(String requestID);
+
+    void handle(String requestID, OutputStream out) throws IOException;
+
+    void store(String requestID, OAIPMH response) throws IOException;
+
+    void delete(String requestID);
+
+    void deleteAll() throws IOException;
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/cache/XOAIItemCacheService.java

@@ -7,16 +7,20 @@
  */
 package org.dspace.xoai.services.api.cache;
 
+import java.io.IOException;
+
 import com.lyncode.xoai.dataprovider.xml.xoai.Metadata;
 import org.dspace.content.Item;
 
-import java.io.IOException;
-
 
 public interface XOAIItemCacheService {
-    boolean hasCache (Item item);
-    Metadata get (Item item) throws IOException;
-    void put (Item item, Metadata metadata) throws IOException;
-    void delete (Item item);
+    boolean hasCache(Item item);
+
+    Metadata get(Item item) throws IOException;
+
+    void put(Item item, Metadata metadata) throws IOException;
+
+    void delete(Item item);
+
     void deleteAll() throws IOException;
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/cache/XOAILastCompilationCacheService.java

@@ -12,7 +12,9 @@ import java.util.Date;
 
 
 public interface XOAILastCompilationCacheService {
-    boolean hasCache ();
-    void put (Date date) throws IOException;
-    Date get () throws IOException;
+    boolean hasCache();
+
+    void put(Date date) throws IOException;
+
+    Date get() throws IOException;
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/config/ConfigurationService.java

@@ -8,7 +8,9 @@
 package org.dspace.xoai.services.api.config;
 
 public interface ConfigurationService {
-    String getProperty (String key);
-    String getProperty (String module, String key);
+    String getProperty(String key);
+
+    String getProperty(String module, String key);
+
     boolean getBooleanProperty(String module, String key, boolean defaultValue);
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/config/XOAIManagerResolver.java

@@ -10,5 +10,5 @@ package org.dspace.xoai.services.api.config;
 import com.lyncode.xoai.dataprovider.core.XOAIManager;
 
 public interface XOAIManagerResolver {
-    XOAIManager getManager () throws XOAIManagerResolverException;
+    XOAIManager getManager() throws XOAIManagerResolverException;
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/config/XOAIManagerResolverException.java

@@ -8,7 +8,8 @@
 package org.dspace.xoai.services.api.config;
 
 public class XOAIManagerResolverException extends Exception {
-    public XOAIManagerResolverException() {}
+    public XOAIManagerResolverException() {
+    }
 
     public XOAIManagerResolverException(String message) {
         super(message);

dspace-oai/src/main/java/org/dspace/xoai/services/api/set/SetSpecResolver.java

@@ -14,7 +14,9 @@ import org.dspace.content.DSpaceObject;
 import org.dspace.xoai.exceptions.InvalidSetSpecException;
 
 public interface SetSpecResolver {
-    String toSetSpec (Community community) throws InvalidSetSpecException;
-    String toSetSpec (Collection collection) throws InvalidSetSpecException;
-    DSpaceObject fromSetSpec (String setSpec) throws InvalidSetSpecException;
+    String toSetSpec(Community community) throws InvalidSetSpecException;
+
+    String toSetSpec(Collection collection) throws InvalidSetSpecException;
+
+    DSpaceObject fromSetSpec(String setSpec) throws InvalidSetSpecException;
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/solr/SolrQueryResolver.java

@@ -7,10 +7,10 @@
  */
 package org.dspace.xoai.services.api.solr;
 
-import com.lyncode.xoai.dataprovider.filter.ScopedFilter;
-
 import java.util.List;
 
+import com.lyncode.xoai.dataprovider.filter.ScopedFilter;
+
 public interface SolrQueryResolver {
-    String buildQuery (List<ScopedFilter> filters);
+    String buildQuery(List<ScopedFilter> filters);
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/solr/SolrServerResolver.java

@@ -11,5 +11,5 @@ import org.apache.solr.client.solrj.SolrServer;
 import org.apache.solr.client.solrj.SolrServerException;
 
 public interface SolrServerResolver {
-    SolrServer getServer () throws SolrServerException;
+    SolrServer getServer() throws SolrServerException;
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/xoai/DSpaceFilterResolver.java

@@ -7,7 +7,6 @@
  */
 package org.dspace.xoai.services.api.xoai;
 
-
 import com.lyncode.xoai.dataprovider.filter.Scope;
 import com.lyncode.xoai.dataprovider.filter.conditions.Condition;
 import com.lyncode.xoai.dataprovider.services.api.FilterResolver;

dspace-oai/src/main/java/org/dspace/xoai/services/api/xoai/ItemRepositoryResolver.java

@@ -11,5 +11,5 @@ import com.lyncode.xoai.dataprovider.services.api.ItemRepository;
 import org.dspace.xoai.services.api.context.ContextServiceException;
 
 public interface ItemRepositoryResolver {
-    ItemRepository getItemRepository () throws ContextServiceException;
+    ItemRepository getItemRepository() throws ContextServiceException;
 }

dspace-oai/src/main/java/org/dspace/xoai/services/api/xoai/SetRepositoryResolver.java

@@ -11,5 +11,5 @@ import com.lyncode.xoai.dataprovider.services.api.SetRepository;
 import org.dspace.xoai.services.api.context.ContextServiceException;
 
 public interface SetRepositoryResolver {
-    SetRepository getSetRepository () throws ContextServiceException;
+    SetRepository getSetRepository() throws ContextServiceException;
 }

dspace-oai/src/main/java/org/dspace/xoai/services/impl/DSpaceCollectionsService.java

@@ -7,32 +7,31 @@
  */
 package org.dspace.xoai.services.impl;
 
-import org.dspace.content.Collection;
-import org.dspace.content.Community;
-import org.dspace.content.Item;
-import org.dspace.core.Context;
-import org.dspace.xoai.services.api.context.ContextService;
-import org.dspace.xoai.services.api.context.ContextServiceException;
-import org.dspace.xoai.services.api.CollectionsService;
-
 import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Queue;
 import java.util.UUID;
+
+import org.dspace.content.Collection;
+import org.dspace.content.Community;
+import org.dspace.content.Item;
 import org.dspace.content.factory.ContentServiceFactory;
 import org.dspace.content.service.CommunityService;
+import org.dspace.core.Context;
+import org.dspace.xoai.services.api.CollectionsService;
+import org.dspace.xoai.services.api.context.ContextService;
+import org.dspace.xoai.services.api.context.ContextServiceException;
 
 public class DSpaceCollectionsService implements CollectionsService {
 
     private static final CommunityService communityService
-            = ContentServiceFactory.getInstance().getCommunityService();
+        = ContentServiceFactory.getInstance().getCommunityService();
 
     @Override
     public List<UUID> getAllSubCollections(ContextService contextService, UUID communityId)
-            throws SQLException
-    {
+        throws SQLException {
         Queue<Community> comqueue = new LinkedList<>();
         List<UUID> list = new ArrayList<>();
         try {
@@ -40,35 +39,38 @@ public class DSpaceCollectionsService implements CollectionsService {
         } catch (ContextServiceException e) {
             throw new SQLException(e);
         }
-        while (!comqueue.isEmpty())
-        {
+        while (!comqueue.isEmpty()) {
             Community c = comqueue.poll();
-            for (Community sub : c.getSubcommunities())
+            for (Community sub : c.getSubcommunities()) {
                 comqueue.add(sub);
-            for (Collection col : c.getCollections())
-                if (!list.contains(col.getID()))
+            }
+            for (Collection col : c.getCollections()) {
+                if (!list.contains(col.getID())) {
                     list.add(col.getID());
+                }
+            }
         }
         return list;
     }
 
     @Override
     public List<Community> flatParentCommunities(Collection c)
-            throws SQLException
-    {
+        throws SQLException {
         Queue<Community> queue = new LinkedList<>();
         List<Community> result = new ArrayList<>();
-        for (Community com : c.getCommunities())
+        for (Community com : c.getCommunities()) {
             queue.add(com);
+        }
 
-        while (!queue.isEmpty())
-        {
+        while (!queue.isEmpty()) {
             Community p = queue.poll();
             List<Community> par = p.getParentCommunities();
-            if (par != null)
+            if (par != null) {
                 queue.addAll(par);
-            if (!result.contains(p))
+            }
+            if (!result.contains(p)) {
                 result.add(p);
+            }
         }
 
         return result;
@@ -76,21 +78,21 @@ public class DSpaceCollectionsService implements CollectionsService {
 
     @Override
     public List<Community> flatParentCommunities(Community c)
-            throws SQLException
-    {
+        throws SQLException {
         Queue<Community> queue = new LinkedList<>();
         List<Community> result = new ArrayList<>();
 
         queue.add(c);
 
-        while (!queue.isEmpty())
-        {
+        while (!queue.isEmpty()) {
             Community p = queue.poll();
             List<Community> par = p.getParentCommunities();
-            if (par != null)
+            if (par != null) {
                 queue.addAll(par);
-            if (!result.contains(p))
+            }
+            if (!result.contains(p)) {
                 result.add(p);
+            }
         }
 
         return result;
@@ -98,22 +100,23 @@ public class DSpaceCollectionsService implements CollectionsService {
 
     @Override
     public List<Community> flatParentCommunities(Context context, Item c)
-            throws SQLException
-    {
+        throws SQLException {
         Queue<Community> queue = new LinkedList<>();
         List<Community> result = new ArrayList<>();
 
-        for (Collection collection : c.getCollections())
+        for (Collection collection : c.getCollections()) {
             queue.addAll(communityService.getAllParents(context, collection));
+        }
 
-        while (!queue.isEmpty())
-        {
+        while (!queue.isEmpty()) {
             Community p = queue.poll();
             List<Community> par = p.getParentCommunities();
-            if (par != null)
+            if (par != null) {
                 queue.addAll(par);
-            if (!result.contains(p))
+            }
+            if (!result.contains(p)) {
                 result.add(p);
+            }
         }
 
         return result;

dspace-oai/src/main/java/org/dspace/xoai/services/impl/DSpaceEarliestDateResolver.java

@@ -7,8 +7,14 @@
  */
 package org.dspace.xoai.services.impl;
 
+import java.sql.SQLException;
+import java.util.Date;
+
 import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
+import org.dspace.content.MetadataValue;
+import org.dspace.content.factory.ContentServiceFactory;
+import org.dspace.content.service.MetadataValueService;
 import org.dspace.core.Context;
 import org.dspace.xoai.exceptions.InvalidMetadataFieldException;
 import org.dspace.xoai.services.api.EarliestDateResolver;
@@ -16,12 +22,6 @@ import org.dspace.xoai.services.api.FieldResolver;
 import org.dspace.xoai.util.DateUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 
-import java.sql.SQLException;
-import java.util.Date;
-import org.dspace.content.MetadataValue;
-import org.dspace.content.factory.ContentServiceFactory;
-import org.dspace.content.service.MetadataValueService;
-
 public class DSpaceEarliestDateResolver implements EarliestDateResolver {
     private static final Logger log = LogManager.getLogger(DSpaceEarliestDateResolver.class);
 
@@ -34,17 +34,15 @@ public class DSpaceEarliestDateResolver implements EarliestDateResolver {
 
         MetadataValueService metadataValueService = ContentServiceFactory.getInstance().getMetadataValueService();
         MetadataValue minimum = metadataValueService.getMinimum(context,
-                fieldResolver.getFieldID(context, "dc.date.available"));
-        if (null != minimum)
-        {
+                                                                fieldResolver.getFieldID(context, "dc.date.available"));
+        if (null != minimum) {
             String str = minimum.getValue();
-            try
-            {
+            try {
                 Date d = DateUtils.parse(str);
-                if (d != null) return d;
-            }
-            catch (Exception e)
-            {
+                if (d != null) {
+                    return d;
+                }
+            } catch (Exception e) {
                 log.error(e.getMessage(), e);
             }
         }

dspace-oai/src/main/java/org/dspace/xoai/services/impl/DSpaceFieldResolver.java

@@ -7,6 +7,9 @@
  */
 package org.dspace.xoai.services.impl;
 
+import java.sql.SQLException;
+import java.util.regex.Pattern;
+
 import org.dspace.content.MetadataField;
 import org.dspace.content.factory.ContentServiceFactory;
 import org.dspace.content.service.MetadataFieldService;
@@ -14,41 +17,37 @@ import org.dspace.core.Context;
 import org.dspace.xoai.exceptions.InvalidMetadataFieldException;
 import org.dspace.xoai.services.api.FieldResolver;
 
-import java.sql.SQLException;
-import java.util.regex.Pattern;
-
 public class DSpaceFieldResolver implements FieldResolver {
     private MetadataFieldCache metadataFieldCache = null;
 
     private static final MetadataFieldService metadataFieldService
-            = ContentServiceFactory.getInstance().getMetadataFieldService();
+        = ContentServiceFactory.getInstance().getMetadataFieldService();
 
     @Override
     public int getFieldID(Context context, String field) throws InvalidMetadataFieldException, SQLException {
-        if (metadataFieldCache == null)
+        if (metadataFieldCache == null) {
             metadataFieldCache = new MetadataFieldCache();
-        if (!metadataFieldCache.hasField(field))
-        {
+        }
+        if (!metadataFieldCache.hasField(field)) {
             String[] pieces = field.split(Pattern.quote("."));
-            if (pieces.length > 1)
-            {
+            if (pieces.length > 1) {
                 String schema = pieces[0];
                 String element = pieces[1];
                 String qualifier = null;
-                if (pieces.length > 2)
+                if (pieces.length > 2) {
                     qualifier = pieces[2];
+                }
 
                 MetadataField metadataField = metadataFieldService.findByElement(context, schema, element, qualifier);
-                if (null != metadataField)
-                {
+                if (null != metadataField) {
                     metadataFieldCache.add(field, metadataField.getID());
-                }
-                else
+                } else {
                     throw new InvalidMetadataFieldException();
+                }
 
-            }
-            else
+            } else {
                 throw new InvalidMetadataFieldException();
+            }
         }
         return metadataFieldCache.getField(field);
     }

dspace-oai/src/main/java/org/dspace/xoai/services/impl/DSpaceHandleResolver.java

@@ -9,13 +9,14 @@ package org.dspace.xoai.services.impl;
 
 import java.sql.SQLException;
 import javax.inject.Inject;
+
 import org.dspace.content.DSpaceObject;
 import org.dspace.handle.factory.HandleServiceFactory;
 import org.dspace.handle.service.HandleService;
-import org.dspace.xoai.services.api.context.ContextService;
-import org.dspace.xoai.services.api.context.ContextServiceException;
 import org.dspace.xoai.services.api.HandleResolver;
 import org.dspace.xoai.services.api.HandleResolverException;
+import org.dspace.xoai.services.api.context.ContextService;
+import org.dspace.xoai.services.api.context.ContextServiceException;
 
 public class DSpaceHandleResolver implements HandleResolver {
     @Inject
@@ -23,8 +24,7 @@ public class DSpaceHandleResolver implements HandleResolver {
 
     private final HandleService handleService;
 
-    public DSpaceHandleResolver()
-    {
+    public DSpaceHandleResolver() {
         handleService = HandleServiceFactory.getInstance().getHandleService();
     }
 

dspace-oai/src/main/java/org/dspace/xoai/services/impl/DSpaceServiceResolver.java

@@ -7,6 +7,8 @@
  */
 package org.dspace.xoai.services.impl;
 
+import java.util.Map;
+
 import com.lyncode.builder.MapBuilder;
 import com.lyncode.xoai.dataprovider.services.api.ResourceResolver;
 import org.dspace.xoai.services.api.ServiceResolver;
@@ -14,13 +16,11 @@ import org.dspace.xoai.services.api.config.ConfigurationService;
 import org.dspace.xoai.services.impl.config.DSpaceConfigurationService;
 import org.dspace.xoai.services.impl.resources.DSpaceResourceResolver;
 
-import java.util.Map;
-
 public class DSpaceServiceResolver implements ServiceResolver {
     private Map<String, Object> services = new MapBuilder<String, Object>()
-            .withPair(ConfigurationService.class.getName(), new DSpaceConfigurationService())
-            .withPair(ResourceResolver.class.getName(), new DSpaceResourceResolver())
-            .build();
+        .withPair(ConfigurationService.class.getName(), new DSpaceConfigurationService())
+        .withPair(ResourceResolver.class.getName(), new DSpaceResourceResolver())
+        .build();
 
     @Override
     public <T> T getService(Class<T> type) {

dspace-oai/src/main/java/org/dspace/xoai/services/impl/MetadataFieldCache.java

@@ -7,40 +7,34 @@
  */
 package org.dspace.xoai.services.impl;
 
-import org.apache.log4j.LogManager;
-import org.apache.log4j.Logger;
-
 import java.util.HashMap;
 import java.util.Map;
 
+import org.apache.log4j.LogManager;
+import org.apache.log4j.Logger;
+
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class MetadataFieldCache
-{
+public class MetadataFieldCache {
     private static Logger log = LogManager
-            .getLogger(MetadataFieldCache.class);
+        .getLogger(MetadataFieldCache.class);
 
     private Map<String, Integer> fields;
 
-    public MetadataFieldCache()
-    {
+    public MetadataFieldCache() {
         fields = new HashMap<String, Integer>();
     }
 
-    public boolean hasField(String field)
-    {
+    public boolean hasField(String field) {
         return fields.containsKey(field);
     }
 
-    public int getField(String field)
-    {
+    public int getField(String field) {
         return fields.get(field).intValue();
     }
 
-    public void add(String field, int id)
-    {
+    public void add(String field, int id) {
         fields.put(field, new Integer(id));
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/services/impl/cache/DSpaceEmptyCacheService.java

@@ -7,12 +7,12 @@
  */
 package org.dspace.xoai.services.impl.cache;
 
-import com.lyncode.xoai.dataprovider.xml.oaipmh.OAIPMH;
-import org.dspace.xoai.services.api.cache.XOAICacheService;
-
 import java.io.IOException;
 import java.io.OutputStream;
 
+import com.lyncode.xoai.dataprovider.xml.oaipmh.OAIPMH;
+import org.dspace.xoai.services.api.cache.XOAICacheService;
+
 public class DSpaceEmptyCacheService implements XOAICacheService {
     @Override
     public boolean isActive() {

dspace-oai/src/main/java/org/dspace/xoai/services/impl/cache/DSpaceXOAICacheService.java

@@ -7,6 +7,20 @@
  */
 package org.dspace.xoai.services.impl.cache;
 
+import static com.lyncode.xoai.dataprovider.core.Granularity.Second;
+import static org.apache.commons.io.FileUtils.deleteDirectory;
+import static org.apache.commons.io.IOUtils.copy;
+import static org.apache.commons.io.IOUtils.write;
+
+import java.io.ByteArrayOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+import java.util.Date;
+import javax.xml.stream.XMLStreamException;
+
 import com.lyncode.xoai.dataprovider.core.XOAIManager;
 import com.lyncode.xoai.dataprovider.exceptions.WritingXmlException;
 import com.lyncode.xoai.dataprovider.xml.XmlOutputContext;
@@ -19,15 +33,6 @@ import org.dspace.xoai.services.api.config.ConfigurationService;
 import org.dspace.xoai.util.DateUtils;
 import org.springframework.beans.factory.annotation.Autowired;
 
-import javax.xml.stream.XMLStreamException;
-import java.io.*;
-import java.util.Date;
-
-import static com.lyncode.xoai.dataprovider.core.Granularity.Second;
-import static org.apache.commons.io.FileUtils.deleteDirectory;
-import static org.apache.commons.io.IOUtils.copy;
-import static org.apache.commons.io.IOUtils.write;
-
 
 public class DSpaceXOAICacheService implements XOAICacheService {
     private static final String REQUEST_DIR = File.separator + "requests";
@@ -43,12 +48,15 @@ public class DSpaceXOAICacheService implements XOAICacheService {
     }
 
     private static String getStaticHead(XOAIManager manager, Date date) {
-        if (staticHead == null)
+        if (staticHead == null) {
             staticHead = "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
-                    + ((manager.hasStyleSheet()) ? ("<?xml-stylesheet type=\"text/xsl\" href=\""
-                    + manager.getStyleSheet() + "\"?>") : "")
-                    + "<OAI-PMH xmlns=\"http://www.openarchives.org/OAI/2.0/\" xmlns:xsi=\"http://www.w3.org/2001/XMLSchema-instance\" "
-                    + "xsi:schemaLocation=\"http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd\">";
+                + ((manager.hasStyleSheet()) ? ("<?xml-stylesheet type=\"text/xsl\" href=\""
+                + manager.getStyleSheet() + "\"?>") : "")
+                + "<OAI-PMH xmlns=\"http://www.openarchives.org/OAI/2.0/\" xmlns:xsi=\"http://www" +
+                ".w3.org/2001/XMLSchema-instance\" "
+                + "xsi:schemaLocation=\"http://www.openarchives.org/OAI/2.0/ http://www.openarchives" +
+                ".org/OAI/2.0/OAI-PMH.xsd\">";
+        }
 
         return staticHead + "<responseDate>" + DateUtils.format(date) + "</responseDate>";
     }
@@ -64,8 +72,9 @@ public class DSpaceXOAICacheService implements XOAICacheService {
 
     private File getCacheFile(String id) {
         File dir = new File(getBaseDir());
-        if (!dir.exists())
+        if (!dir.exists()) {
             dir.mkdirs();
+        }
 
         String name = File.separator + Base64Utils.encode(id);
         return new File(getBaseDir() + name);
@@ -103,8 +112,9 @@ public class DSpaceXOAICacheService implements XOAICacheService {
             // Cutting the header (to allow one to change the response time)
             String end = "</responseDate>";
             int pos = xoaiResponse.indexOf(end);
-            if (pos > 0)
+            if (pos > 0) {
                 xoaiResponse = xoaiResponse.substring(pos + (end.length()));
+            }
 
             FileUtils.write(this.getCacheFile(requestID), xoaiResponse);
         } catch (XMLStreamException e) {

dspace-oai/src/main/java/org/dspace/xoai/services/impl/cache/DSpaceXOAIItemCacheService.java

@@ -7,6 +7,15 @@
  */
 package org.dspace.xoai.services.impl.cache;
 
+import static com.lyncode.xoai.dataprovider.core.Granularity.Second;
+import static org.apache.commons.io.FileUtils.deleteDirectory;
+
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import javax.xml.stream.XMLStreamException;
+
 import com.lyncode.xoai.dataprovider.exceptions.WritingXmlException;
 import com.lyncode.xoai.dataprovider.xml.XmlOutputContext;
 import com.lyncode.xoai.dataprovider.xml.xoai.Metadata;
@@ -17,15 +26,6 @@ import org.dspace.xoai.services.api.cache.XOAIItemCacheService;
 import org.dspace.xoai.services.api.config.ConfigurationService;
 import org.springframework.beans.factory.annotation.Autowired;
 
-import javax.xml.stream.XMLStreamException;
-import java.io.File;
-import java.io.FileInputStream;
-import java.io.FileOutputStream;
-import java.io.IOException;
-
-import static com.lyncode.xoai.dataprovider.core.Granularity.Second;
-import static org.apache.commons.io.FileUtils.deleteDirectory;
-
 
 public class DSpaceXOAIItemCacheService implements XOAIItemCacheService {
     private static final String ITEMDIR = File.separator + "items";
@@ -35,36 +35,31 @@ public class DSpaceXOAIItemCacheService implements XOAIItemCacheService {
 
     private String baseDir;
 
-    private String getBaseDir()
-    {
-        if (baseDir == null)
+    private String getBaseDir() {
+        if (baseDir == null) {
             baseDir = configurationService.getProperty("oai", "cache.dir") + ITEMDIR;
+        }
         return baseDir;
     }
 
 
-    private File getMetadataCache(Item item)
-    {
+    private File getMetadataCache(Item item) {
         File dir = new File(getBaseDir());
-        if (!dir.exists())
+        if (!dir.exists()) {
             dir.mkdirs();
+        }
 
         String name = File.separator + item.getHandle().replace('/', '_');
         return new File(getBaseDir() + name);
     }
 
 
-
-
     @Override
     public boolean hasCache(Item item) {
         return getMetadataCache(item).exists();
     }
 
 
-
-
-
     @Override
     public Metadata get(Item item) throws IOException {
         System.out.println(FileUtils.readFileToString(getMetadataCache(item)));
@@ -76,14 +71,11 @@ public class DSpaceXOAIItemCacheService implements XOAIItemCacheService {
             throw new IOException(e);
         }
         input.close();
-        
+
         return metadata;
     }
 
 
-
-
-
     @Override
     public void put(Item item, Metadata metadata) throws IOException {
         FileOutputStream output = new FileOutputStream(getMetadataCache(item));
@@ -92,7 +84,7 @@ public class DSpaceXOAIItemCacheService implements XOAIItemCacheService {
             metadata.write(context);
             context.getWriter().flush();
             context.getWriter().close();
-            
+
             output.close();
         } catch (XMLStreamException e) {
             throw new IOException(e);

dspace-oai/src/main/java/org/dspace/xoai/services/impl/cache/DSpaceXOAILastCompilationCacheService.java

@@ -7,10 +7,6 @@
  */
 package org.dspace.xoai.services.impl.cache;
 
-import org.apache.commons.io.FileUtils;
-import org.dspace.core.ConfigurationManager;
-import org.dspace.xoai.services.api.cache.XOAILastCompilationCacheService;
-
 import java.io.File;
 import java.io.IOException;
 import java.text.DateFormat;
@@ -18,23 +14,25 @@ import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 
+import org.apache.commons.io.FileUtils;
+import org.dspace.core.ConfigurationManager;
+import org.dspace.xoai.services.api.cache.XOAILastCompilationCacheService;
+
 
 public class DSpaceXOAILastCompilationCacheService implements XOAILastCompilationCacheService {
 
-    private static final ThreadLocal<DateFormat> format = new ThreadLocal<DateFormat>(){
-                            @Override
-                            protected DateFormat initialValue() {
-                                return new SimpleDateFormat();
-                            }
-                          };
+    private static final ThreadLocal<DateFormat> format = new ThreadLocal<DateFormat>() {
+        @Override
+        protected DateFormat initialValue() {
+            return new SimpleDateFormat();
+        }
+    };
     private static final String DATEFILE = File.separator + "date.file";
 
     private static File file = null;
 
-    private static File getFile()
-    {
-        if (file == null)
-        {
+    private static File getFile() {
+        if (file == null) {
             String dir = ConfigurationManager.getProperty("oai", "cache.dir") + DATEFILE;
             file = new File(dir);
         }
@@ -48,18 +46,12 @@ public class DSpaceXOAILastCompilationCacheService implements XOAILastCompilatio
     }
 
 
-
-
-
     @Override
     public void put(Date date) throws IOException {
         FileUtils.write(getFile(), format.get().format(date));
     }
 
 
-
-
-
     @Override
     public Date get() throws IOException {
         try {

dspace-oai/src/main/java/org/dspace/xoai/services/impl/config/DSpaceConfigurationService.java

@@ -17,7 +17,7 @@ public class DSpaceConfigurationService implements ConfigurationService {
     }
 
     @Override
-    public String getProperty(String module, String key)  {
+    public String getProperty(String module, String key) {
         return ConfigurationManager.getProperty(module, key);
     }
 

dspace-oai/src/main/java/org/dspace/xoai/services/impl/context/DSpaceContextService.java

@@ -7,20 +7,21 @@
  */
 package org.dspace.xoai.services.impl.context;
 
+import javax.servlet.http.HttpServletRequest;
+
 import org.dspace.core.Context;
 import org.dspace.xoai.services.api.context.ContextService;
 import org.dspace.xoai.services.api.context.ContextServiceException;
 import org.springframework.web.context.request.RequestContextHolder;
 import org.springframework.web.context.request.ServletRequestAttributes;
 
-import javax.servlet.http.HttpServletRequest;
-
 public class DSpaceContextService implements ContextService {
     private static final String OAI_CONTEXT = "OAI_CONTEXT";
 
     @Override
     public Context getContext() throws ContextServiceException {
-        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.currentRequestAttributes()).getRequest();
+        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.currentRequestAttributes())
+            .getRequest();
         Object value = request.getAttribute(OAI_CONTEXT);
         if (value == null || !(value instanceof Context)) {
             request.setAttribute(OAI_CONTEXT, new Context());

dspace-oai/src/main/java/org/dspace/xoai/services/impl/context/DSpaceXOAIManagerResolver.java

@@ -7,6 +7,8 @@
  */
 package org.dspace.xoai.services.impl.context;
 
+import static com.lyncode.xoai.dataprovider.xml.xoaiconfig.Configuration.readConfiguration;
+
 import com.lyncode.xoai.dataprovider.core.XOAIManager;
 import com.lyncode.xoai.dataprovider.services.api.ResourceResolver;
 import org.dspace.xoai.services.api.config.XOAIManagerResolver;
@@ -14,12 +16,12 @@ import org.dspace.xoai.services.api.config.XOAIManagerResolverException;
 import org.dspace.xoai.services.api.xoai.DSpaceFilterResolver;
 import org.springframework.beans.factory.annotation.Autowired;
 
-import static com.lyncode.xoai.dataprovider.xml.xoaiconfig.Configuration.readConfiguration;
-
 public class DSpaceXOAIManagerResolver implements XOAIManagerResolver {
     public static final String XOAI_CONFIGURATION_FILE = "xoai.xml";
-    @Autowired ResourceResolver resourceResolver;
-    @Autowired DSpaceFilterResolver filterResolver;
+    @Autowired
+    ResourceResolver resourceResolver;
+    @Autowired
+    DSpaceFilterResolver filterResolver;
 
     private XOAIManager manager;
 
@@ -27,7 +29,8 @@ public class DSpaceXOAIManagerResolver implements XOAIManagerResolver {
     public XOAIManager getManager() throws XOAIManagerResolverException {
         if (manager == null) {
             try {
-                manager = new XOAIManager(filterResolver, resourceResolver, readConfiguration(resourceResolver.getResource(XOAI_CONFIGURATION_FILE)));
+                manager = new XOAIManager(filterResolver, resourceResolver,
+                                          readConfiguration(resourceResolver.getResource(XOAI_CONFIGURATION_FILE)));
             } catch (Exception e) {
                 throw new XOAIManagerResolverException(e);
             }

dspace-oai/src/main/java/org/dspace/xoai/services/impl/resources/DSpaceResourceResolver.java

@@ -11,35 +11,30 @@ import java.io.File;
 import java.io.FileInputStream;
 import java.io.IOException;
 import java.io.InputStream;
-
 import javax.xml.transform.Source;
 import javax.xml.transform.Transformer;
 import javax.xml.transform.TransformerConfigurationException;
 import javax.xml.transform.TransformerFactory;
 import javax.xml.transform.stream.StreamSource;
 
+import com.lyncode.xoai.dataprovider.services.api.ResourceResolver;
 import org.dspace.core.ConfigurationManager;
 
-import com.lyncode.xoai.dataprovider.services.api.ResourceResolver;
-
-public class DSpaceResourceResolver implements ResourceResolver
-{
+public class DSpaceResourceResolver implements ResourceResolver {
     private static final TransformerFactory transformerFactory = TransformerFactory
-            .newInstance();
+        .newInstance();
 
     private final String basePath = ConfigurationManager.getProperty("oai",
-            "config.dir");
+                                                                     "config.dir");
 
     @Override
-    public InputStream getResource(String path) throws IOException
-    {
+    public InputStream getResource(String path) throws IOException {
         return new FileInputStream(new File(basePath, path));
     }
 
     @Override
     public Transformer getTransformer(String path) throws IOException,
-            TransformerConfigurationException
-    {
+        TransformerConfigurationException {
         // construct a Source that reads from an InputStream
         Source mySrc = new StreamSource(getResource(path));
         // specify a system ID (the path to the XSLT-file on the filesystem)

dspace-oai/src/main/java/org/dspace/xoai/services/impl/set/DSpaceSetSpecResolver.java

@@ -8,20 +8,20 @@
 
 package org.dspace.xoai.services.impl.set;
 
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+
 import org.dspace.content.Collection;
 import org.dspace.content.Community;
 import org.dspace.content.DSpaceObject;
 import org.dspace.xoai.exceptions.InvalidSetSpecException;
-import org.dspace.xoai.services.api.config.ConfigurationService;
-import org.dspace.xoai.services.api.context.ContextService;
 import org.dspace.xoai.services.api.HandleResolver;
 import org.dspace.xoai.services.api.HandleResolverException;
+import org.dspace.xoai.services.api.config.ConfigurationService;
+import org.dspace.xoai.services.api.context.ContextService;
 import org.dspace.xoai.services.api.set.SetSpecResolver;
 import org.springframework.beans.factory.annotation.Autowired;
 
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
 public class DSpaceSetSpecResolver implements SetSpecResolver {
     private static final String HANDLE_PREFIX = "{handle-prefix}";
     private static final String LOCAL_ID = "{local-id}";
@@ -40,7 +40,9 @@ public class DSpaceSetSpecResolver implements SetSpecResolver {
     public String toSetSpec(Community community) throws InvalidSetSpecException {
         String handle = community.getHandle();
         String[] split = handle.split("/");
-        if (split.length != 2) throw new InvalidSetSpecException("Invalid handle "+handle);
+        if (split.length != 2) {
+            throw new InvalidSetSpecException("Invalid handle " + handle);
+        }
 
         return format(getSetSpecFormat(Community.class), split[0], split[1]);
     }
@@ -49,7 +51,9 @@ public class DSpaceSetSpecResolver implements SetSpecResolver {
     public String toSetSpec(Collection collection) throws InvalidSetSpecException {
         String handle = collection.getHandle();
         String[] split = handle.split("/");
-        if (split.length != 2) throw new InvalidSetSpecException("Invalid handle "+handle);
+        if (split.length != 2) {
+            throw new InvalidSetSpecException("Invalid handle " + handle);
+        }
 
         return String.format(getSetSpecFormat(Community.class), split[0], split[1]);
     }
@@ -59,12 +63,13 @@ public class DSpaceSetSpecResolver implements SetSpecResolver {
         String communityPattern = getPattern(Community.class);
         String collectionPattern = getPattern(Collection.class);
         String pattern;
-        if (setSpec.matches(communityPattern))
+        if (setSpec.matches(communityPattern)) {
             pattern = communityPattern;
-        else if (setSpec.matches(collectionPattern))
+        } else if (setSpec.matches(collectionPattern)) {
             pattern = collectionPattern;
-        else
+        } else {
             throw new InvalidSetSpecException("Unknown set spec");
+        }
 
 
         Matcher matcher = Pattern.compile(pattern).matcher(setSpec);
@@ -83,11 +88,12 @@ public class DSpaceSetSpecResolver implements SetSpecResolver {
     }
 
     private String getPattern(Class<?> clazz) {
-        return "^"+getSetSpecFormat(clazz).replace(HANDLE_PREFIX, "([0-9]+)").replace(LOCAL_ID, "([0-9]+)")+"$";
+        return "^" + getSetSpecFormat(clazz).replace(HANDLE_PREFIX, "([0-9]+)").replace(LOCAL_ID, "([0-9]+)") + "$";
     }
 
     private String getSetSpecFormat(Class<?> clazz) {
-        String property = configurationService.getProperty("oai", clazz.getSimpleName().toLowerCase() + ".setSpecFormat");
+        String property = configurationService
+            .getProperty("oai", clazz.getSimpleName().toLowerCase() + ".setSpecFormat");
         return property == null ? DEFAULT_FORMAT : property;
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/services/impl/solr/DSpaceSolrQueryResolver.java

@@ -7,6 +7,9 @@
  */
 package org.dspace.xoai.services.impl.solr;
 
+import java.util.ArrayList;
+import java.util.List;
+
 import com.lyncode.xoai.dataprovider.filter.Scope;
 import com.lyncode.xoai.dataprovider.filter.ScopedFilter;
 import com.lyncode.xoai.dataprovider.filter.conditions.Condition;
@@ -15,9 +18,6 @@ import org.dspace.xoai.services.api.solr.SolrQueryResolver;
 import org.dspace.xoai.services.api.xoai.DSpaceFilterResolver;
 import org.springframework.beans.factory.annotation.Autowired;
 
-import java.util.ArrayList;
-import java.util.List;
-
 public class DSpaceSolrQueryResolver implements SolrQueryResolver {
     @Autowired
     DSpaceFilterResolver filterResolver;
@@ -25,18 +25,20 @@ public class DSpaceSolrQueryResolver implements SolrQueryResolver {
     @Override
     public String buildQuery(List<ScopedFilter> filters) {
         List<String> whereCond = new ArrayList<String>();
-        for (ScopedFilter filter : filters)
+        for (ScopedFilter filter : filters) {
             whereCond.add(buildQuery(filter.getScope(), filter.getCondition()));
+        }
 
-        if (whereCond.isEmpty())
+        if (whereCond.isEmpty()) {
             whereCond.add("*:*");
+        }
         String where = "(" + StringUtils.join(whereCond.iterator(), ") AND (") + ")";
 
         return where;
     }
 
 
-    private String buildQuery (Scope scope, Condition condition) {
+    private String buildQuery(Scope scope, Condition condition) {
         return filterResolver.buildSolrQuery(scope, condition);
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/services/impl/solr/DSpaceSolrServerResolver.java

@@ -24,17 +24,12 @@ public class DSpaceSolrServerResolver implements SolrServerResolver {
     private ConfigurationService configurationService;
 
     @Override
-    public SolrServer getServer() throws SolrServerException
-    {
-        if (server == null)
-        {
-            try
-            {
+    public SolrServer getServer() throws SolrServerException {
+        if (server == null) {
+            try {
                 server = new HttpSolrServer(configurationService.getProperty("oai", "solr.url"));
                 log.debug("Solr Server Initialized");
-            }
-            catch (Exception e)
-            {
+            } catch (Exception e) {
                 log.error(e.getMessage(), e);
             }
         }

dspace-oai/src/main/java/org/dspace/xoai/services/impl/xoai/BaseDSpaceFilterResolver.java

@@ -7,21 +7,28 @@
  */
 package org.dspace.xoai.services.impl.xoai;
 
+import static com.lyncode.xoai.dataprovider.filter.Scope.MetadataFormat;
+
 import com.lyncode.xoai.dataprovider.data.Filter;
 import com.lyncode.xoai.dataprovider.filter.Scope;
-import com.lyncode.xoai.dataprovider.filter.conditions.*;
+import com.lyncode.xoai.dataprovider.filter.conditions.AndCondition;
+import com.lyncode.xoai.dataprovider.filter.conditions.Condition;
+import com.lyncode.xoai.dataprovider.filter.conditions.CustomCondition;
+import com.lyncode.xoai.dataprovider.filter.conditions.NotCondition;
+import com.lyncode.xoai.dataprovider.filter.conditions.OrCondition;
 import com.lyncode.xoai.dataprovider.xml.xoaiconfig.parameters.ParameterMap;
 import org.apache.log4j.Logger;
-import org.dspace.xoai.filter.*;
+import org.dspace.xoai.filter.AndFilter;
+import org.dspace.xoai.filter.DSpaceFilter;
+import org.dspace.xoai.filter.NotFilter;
+import org.dspace.xoai.filter.OrFilter;
 import org.dspace.xoai.filter.results.SolrFilterResult;
+import org.dspace.xoai.services.api.FieldResolver;
 import org.dspace.xoai.services.api.context.ContextService;
 import org.dspace.xoai.services.api.context.ContextServiceException;
-import org.dspace.xoai.services.api.FieldResolver;
 import org.dspace.xoai.services.api.xoai.DSpaceFilterResolver;
 import org.springframework.beans.factory.annotation.Autowired;
 
-import static com.lyncode.xoai.dataprovider.filter.Scope.MetadataFormat;
-
 public class BaseDSpaceFilterResolver implements DSpaceFilterResolver {
     private static final Logger LOGGER = Logger.getLogger(BaseDSpaceFilterResolver.class);
 
@@ -31,11 +38,14 @@ public class BaseDSpaceFilterResolver implements DSpaceFilterResolver {
     @Autowired
     ContextService contextService;
 
-    public DSpaceFilter getFilter (Condition condition) {
-        if (condition instanceof AndCondition) return (DSpaceFilter) getFilter((AndCondition) condition);
-        else if (condition instanceof OrCondition) return (DSpaceFilter) getFilter((OrCondition) condition);
-        else if (condition instanceof NotCondition) return (DSpaceFilter) getFilter((NotCondition) condition);
-        else if (condition instanceof CustomCondition) {
+    public DSpaceFilter getFilter(Condition condition) {
+        if (condition instanceof AndCondition) {
+            return (DSpaceFilter) getFilter((AndCondition) condition);
+        } else if (condition instanceof OrCondition) {
+            return (DSpaceFilter) getFilter((OrCondition) condition);
+        } else if (condition instanceof NotCondition) {
+            return (DSpaceFilter) getFilter((NotCondition) condition);
+        } else if (condition instanceof CustomCondition) {
             CustomCondition customCondition = (CustomCondition) condition;
             return (DSpaceFilter) customCondition.getFilter();
         } else {
@@ -47,13 +57,13 @@ public class BaseDSpaceFilterResolver implements DSpaceFilterResolver {
     public String buildSolrQuery(Scope scope, Condition condition) {
         DSpaceFilter filter = getFilter(condition);
         SolrFilterResult result = filter.buildSolrQuery();
-        if (result.hasResult())
-        {
-            if (scope == MetadataFormat)
+        if (result.hasResult()) {
+            if (scope == MetadataFormat) {
                 return "(item.deleted:true OR ("
-                        + result.getQuery() + "))";
-            else
+                    + result.getQuery() + "))";
+            } else {
                 return "(" + result.getQuery() + ")";
+            }
         }
         return "true";
     }
@@ -61,22 +71,18 @@ public class BaseDSpaceFilterResolver implements DSpaceFilterResolver {
     @Override
     public Filter getFilter(Class<? extends Filter> filterClass, ParameterMap configuration) {
         Filter result = null;
-        try
-        {
+        try {
             result = filterClass.newInstance();
-            if (result instanceof DSpaceFilter)
-            {
+            if (result instanceof DSpaceFilter) {
                 // add the DSpace filter specific objects
                 ((DSpaceFilter) result).setConfiguration(configuration);
                 ((DSpaceFilter) result).setContext(contextService.getContext());
                 ((DSpaceFilter) result).setFieldResolver(fieldResolver);
             }
-        }
-        catch (InstantiationException | IllegalAccessException
-                | ContextServiceException e)
-        {
+        } catch (InstantiationException | IllegalAccessException
+            | ContextServiceException e) {
             LOGGER.error("Filter " + filterClass.getName()
-                    + " could not be instantiated", e);
+                             + " could not be instantiated", e);
         }
         return result;
     }

dspace-oai/src/main/java/org/dspace/xoai/services/impl/xoai/DSpaceIdentifyResolver.java

@@ -8,10 +8,10 @@
 package org.dspace.xoai.services.impl.xoai;
 
 import com.lyncode.xoai.dataprovider.services.api.RepositoryConfiguration;
+import org.dspace.xoai.services.api.EarliestDateResolver;
 import org.dspace.xoai.services.api.config.ConfigurationService;
 import org.dspace.xoai.services.api.context.ContextService;
 import org.dspace.xoai.services.api.context.ContextServiceException;
-import org.dspace.xoai.services.api.EarliestDateResolver;
 import org.dspace.xoai.services.api.xoai.IdentifyResolver;
 import org.springframework.beans.factory.annotation.Autowired;
 
@@ -25,6 +25,7 @@ public class DSpaceIdentifyResolver implements IdentifyResolver {
 
     @Override
     public RepositoryConfiguration getIdentify() throws ContextServiceException {
-        return new DSpaceRepositoryConfiguration(earliestDateResolver, configurationService, contextService.getContext());
+        return new DSpaceRepositoryConfiguration(earliestDateResolver, configurationService,
+                                                 contextService.getContext());
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/services/impl/xoai/DSpaceItemRepository.java

@@ -7,6 +7,9 @@
  */
 package org.dspace.xoai.services.impl.xoai;
 
+import java.util.Date;
+import java.util.List;
+
 import com.lyncode.xoai.dataprovider.core.ListItemIdentifiersResult;
 import com.lyncode.xoai.dataprovider.core.ListItemsResults;
 import com.lyncode.xoai.dataprovider.data.Filter;
@@ -21,15 +24,10 @@ import org.dspace.xoai.filter.DateUntilFilter;
 import org.dspace.xoai.services.api.CollectionsService;
 import org.dspace.xoai.services.api.HandleResolver;
 
-import java.util.Date;
-import java.util.List;
-
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public abstract class DSpaceItemRepository implements ItemRepository
-{
+public abstract class DSpaceItemRepository implements ItemRepository {
     private CollectionsService collectionsService;
     private HandleResolver handleResolver;
 
@@ -40,24 +38,21 @@ public abstract class DSpaceItemRepository implements ItemRepository
 
     @Override
     public ListItemIdentifiersResult getItemIdentifiers(
-            List<ScopedFilter> filters, int offset, int length, Date from) throws OAIException
-    {
+        List<ScopedFilter> filters, int offset, int length, Date from) throws OAIException {
         filters.add(new ScopedFilter(getDateFromCondition(from), Scope.Query));
         return this.getItemIdentifiers(filters, offset, length);
     }
 
     @Override
     public ListItemIdentifiersResult getItemIdentifiers(
-            List<ScopedFilter> filters, int offset, int length, String setSpec) throws OAIException
-    {
+        List<ScopedFilter> filters, int offset, int length, String setSpec) throws OAIException {
         filters.add(new ScopedFilter(getDSpaceSetSpecFilter(setSpec), Scope.Query));
         return this.getItemIdentifiers(filters, offset, length);
     }
 
     @Override
-	public ListItemIdentifiersResult getItemIdentifiers(
-            List<ScopedFilter> filters, int offset, int length, Date from, Date until) throws OAIException
-    {
+    public ListItemIdentifiersResult getItemIdentifiers(
+        List<ScopedFilter> filters, int offset, int length, Date from, Date until) throws OAIException {
         filters.add(new ScopedFilter(getDateFromCondition(from), Scope.Query));
         filters.add(new ScopedFilter(getDateUntilFilter(until), Scope.Query));
         return this.getItemIdentifiers(filters, offset, length);
@@ -65,67 +60,60 @@ public abstract class DSpaceItemRepository implements ItemRepository
 
     @Override
     public ListItemIdentifiersResult getItemIdentifiers(
-            List<ScopedFilter> filters, int offset, int length, String setSpec,
-            Date from) throws OAIException
-    {
+        List<ScopedFilter> filters, int offset, int length, String setSpec,
+        Date from) throws OAIException {
         filters.add(new ScopedFilter(getDateFromCondition(from), Scope.Query));
         filters.add(new ScopedFilter(getDSpaceSetSpecFilter(setSpec),
-                Scope.Query));
+                                     Scope.Query));
         return this.getItemIdentifiers(filters, offset, length);
     }
 
     @Override
     public ListItemIdentifiersResult getItemIdentifiers(
-            List<ScopedFilter> filters, int offset, int length, String setSpec,
-            Date from, Date until) throws OAIException
-    {
+        List<ScopedFilter> filters, int offset, int length, String setSpec,
+        Date from, Date until) throws OAIException {
         filters.add(new ScopedFilter(getDateFromCondition(from), Scope.Query));
         filters.add(new ScopedFilter(getDateUntilFilter(until), Scope.Query));
         filters.add(new ScopedFilter(getDSpaceSetSpecFilter(setSpec),
-                Scope.Query));
+                                     Scope.Query));
         return this.getItemIdentifiers(filters, offset, length);
     }
 
     @Override
     public ListItemIdentifiersResult getItemIdentifiersUntil(
-            List<ScopedFilter> filters, int offset, int length, Date until) throws OAIException
-    {
+        List<ScopedFilter> filters, int offset, int length, Date until) throws OAIException {
         filters.add(new ScopedFilter(getDateUntilFilter(until), Scope.Query));
         return this.getItemIdentifiers(filters, offset, length);
     }
 
     @Override
     public ListItemIdentifiersResult getItemIdentifiersUntil(
-            List<ScopedFilter> filters, int offset, int length, String setSpec,
-            Date until) throws OAIException
-    {
+        List<ScopedFilter> filters, int offset, int length, String setSpec,
+        Date until) throws OAIException {
         filters.add(new ScopedFilter(getDateUntilFilter(until), Scope.Query));
         filters.add(new ScopedFilter(getDSpaceSetSpecFilter(setSpec),
-                Scope.Query));
+                                     Scope.Query));
         return this.getItemIdentifiers(filters, offset, length);
     }
 
     @Override
     public ListItemsResults getItems(List<ScopedFilter> filters, int offset,
-            int length, Date from) throws OAIException
-    {
+                                     int length, Date from) throws OAIException {
         filters.add(new ScopedFilter(getDateFromCondition(from), Scope.Query));
         return this.getItems(filters, offset, length);
     }
 
     @Override
     public ListItemsResults getItems(List<ScopedFilter> filters, int offset,
-            int length, String setSpec) throws OAIException
-    {
+                                     int length, String setSpec) throws OAIException {
         filters.add(new ScopedFilter(getDSpaceSetSpecFilter(setSpec),
-                Scope.Query));
+                                     Scope.Query));
         return this.getItems(filters, offset, length);
     }
 
     @Override
     public ListItemsResults getItems(List<ScopedFilter> filters, int offset,
-            int length, Date from, Date until) throws OAIException
-    {
+                                     int length, Date from, Date until) throws OAIException {
         filters.add(new ScopedFilter(getDateFromCondition(from), Scope.Query));
         filters.add(new ScopedFilter(getDateUntilFilter(until), Scope.Query));
         return this.getItems(filters, offset, length);
@@ -133,40 +121,36 @@ public abstract class DSpaceItemRepository implements ItemRepository
 
     @Override
     public ListItemsResults getItems(List<ScopedFilter> filters, int offset,
-            int length, String setSpec, Date from) throws OAIException
-    {
+                                     int length, String setSpec, Date from) throws OAIException {
         filters.add(new ScopedFilter(getDateFromCondition(from), Scope.Query));
         filters.add(new ScopedFilter(getDSpaceSetSpecFilter(setSpec),
-                Scope.Query));
+                                     Scope.Query));
         return this.getItems(filters, offset, length);
     }
 
     @Override
     public ListItemsResults getItems(List<ScopedFilter> filters, int offset,
-            int length, String setSpec, Date from, Date until) throws OAIException
-    {
+                                     int length, String setSpec, Date from, Date until) throws OAIException {
         filters.add(new ScopedFilter(getDateFromCondition(from), Scope.Query));
         filters.add(new ScopedFilter(getDateUntilFilter(until), Scope.Query));
         filters.add(new ScopedFilter(getDSpaceSetSpecFilter(setSpec),
-                Scope.Query));
+                                     Scope.Query));
         return this.getItems(filters, offset, length);
     }
 
     @Override
     public ListItemsResults getItemsUntil(List<ScopedFilter> filters, int offset,
-            int length, Date until) throws OAIException
-    {
+                                          int length, Date until) throws OAIException {
         filters.add(new ScopedFilter(getDateUntilFilter(until), Scope.Query));
         return this.getItems(filters, offset, length);
     }
 
     @Override
     public ListItemsResults getItemsUntil(List<ScopedFilter> filters, int offset,
-            int length, String setSpec, Date from) throws OAIException
-    {
+                                          int length, String setSpec, Date from) throws OAIException {
         filters.add(new ScopedFilter(getDateUntilFilter(from), Scope.Query));
         filters.add(new ScopedFilter(getDSpaceSetSpecFilter(setSpec),
-                Scope.Query));
+                                     Scope.Query));
         return this.getItems(filters, offset, length);
     }
 

dspace-oai/src/main/java/org/dspace/xoai/services/impl/xoai/DSpaceItemRepositoryResolver.java

@@ -9,11 +9,11 @@ package org.dspace.xoai.services.impl.xoai;
 
 import com.lyncode.xoai.dataprovider.services.api.ItemRepository;
 import org.apache.solr.client.solrj.SolrServerException;
+import org.dspace.xoai.services.api.CollectionsService;
+import org.dspace.xoai.services.api.HandleResolver;
 import org.dspace.xoai.services.api.config.ConfigurationService;
 import org.dspace.xoai.services.api.context.ContextService;
 import org.dspace.xoai.services.api.context.ContextServiceException;
-import org.dspace.xoai.services.api.CollectionsService;
-import org.dspace.xoai.services.api.HandleResolver;
 import org.dspace.xoai.services.api.solr.SolrQueryResolver;
 import org.dspace.xoai.services.api.solr.SolrServerResolver;
 import org.dspace.xoai.services.api.xoai.ItemRepositoryResolver;
@@ -41,10 +41,10 @@ public class DSpaceItemRepositoryResolver implements ItemRepositoryResolver {
         if (itemRepository == null) {
             try {
                 itemRepository = new DSpaceItemSolrRepository(
-                        solrServerResolver.getServer(),
-                        collectionsService,
-                        handleResolver,
-                        solrQueryResolver);
+                    solrServerResolver.getServer(),
+                    collectionsService,
+                    handleResolver,
+                    solrQueryResolver);
             } catch (SolrServerException e) {
                 throw new ContextServiceException(e.getMessage(), e);
             }

dspace-oai/src/main/java/org/dspace/xoai/services/impl/xoai/DSpaceItemSolrRepository.java

@@ -7,6 +7,10 @@
  */
 package org.dspace.xoai.services.impl.xoai;
 
+import java.util.ArrayList;
+import java.util.List;
+import java.util.regex.Pattern;
+
 import com.google.common.base.Function;
 import com.lyncode.builder.ListBuilder;
 import com.lyncode.xoai.dataprovider.core.ListItemIdentifiersResult;
@@ -29,22 +33,16 @@ import org.dspace.xoai.solr.DSpaceSolrSearch;
 import org.dspace.xoai.solr.exceptions.DSpaceSolrException;
 import org.dspace.xoai.solr.exceptions.SolrSearchEmptyException;
 
-import java.util.ArrayList;
-import java.util.List;
-import java.util.regex.Pattern;
-
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class DSpaceItemSolrRepository extends DSpaceItemRepository
-{
+public class DSpaceItemSolrRepository extends DSpaceItemRepository {
     private static Logger log = LogManager.getLogger(DSpaceItemSolrRepository.class);
     private SolrServer server;
     private SolrQueryResolver solrQueryResolver;
 
-    public DSpaceItemSolrRepository(SolrServer server, CollectionsService collectionsService, HandleResolver handleResolver, SolrQueryResolver solrQueryResolver)
-    {
+    public DSpaceItemSolrRepository(SolrServer server, CollectionsService collectionsService,
+                                    HandleResolver handleResolver, SolrQueryResolver solrQueryResolver) {
         super(collectionsService, handleResolver);
         this.server = server;
         this.solrQueryResolver = solrQueryResolver;
@@ -52,17 +50,15 @@ public class DSpaceItemSolrRepository extends DSpaceItemRepository
 
     @Override
     public Item getItem(String identifier) throws IdDoesNotExistException {
-        if (identifier == null) throw new IdDoesNotExistException();
+        if (identifier == null) {
+            throw new IdDoesNotExistException();
+        }
         String parts[] = identifier.split(Pattern.quote(":"));
-        if (parts.length == 3)
-        {
-            try
-            {
+        if (parts.length == 3) {
+            try {
                 SolrQuery params = new SolrQuery("item.handle:" + parts[2]);
                 return new DSpaceSolrItem(DSpaceSolrSearch.querySingle(server, params));
-            }
-            catch (SolrSearchEmptyException ex)
-            {
+            } catch (SolrSearchEmptyException ex) {
                 throw new IdDoesNotExistException(ex);
             }
         }
@@ -71,23 +67,19 @@ public class DSpaceItemSolrRepository extends DSpaceItemRepository
 
     @Override
     public ListItemIdentifiersResult getItemIdentifiers(
-            List<ScopedFilter> filters, int offset, int length)
-    {
-        try
-        {
+        List<ScopedFilter> filters, int offset, int length) {
+        try {
             QueryResult queryResult = retrieveItems(filters, offset, length);
             List<ItemIdentifier> identifierList = new ListBuilder<Item>()
-                    .add(queryResult.getResults())
-                    .build(new Function<Item, ItemIdentifier>() {
-                        @Override
-                        public ItemIdentifier apply(Item elem) {
-                            return elem;
-                        }
-                    });
+                .add(queryResult.getResults())
+                .build(new Function<Item, ItemIdentifier>() {
+                    @Override
+                    public ItemIdentifier apply(Item elem) {
+                        return elem;
+                    }
+                });
             return new ListItemIdentifiersResult(queryResult.hasMore(), identifierList, queryResult.getTotal());
-        }
-        catch (DSpaceSolrException ex)
-        {
+        } catch (DSpaceSolrException ex) {
             log.error(ex.getMessage(), ex);
             return new ListItemIdentifiersResult(false, new ArrayList<ItemIdentifier>());
         }
@@ -95,29 +87,27 @@ public class DSpaceItemSolrRepository extends DSpaceItemRepository
 
     @Override
     public ListItemsResults getItems(List<ScopedFilter> filters, int offset,
-            int length)
-    {
-        try
-        {
+                                     int length) {
+        try {
             QueryResult queryResult = retrieveItems(filters, offset, length);
             return new ListItemsResults(queryResult.hasMore(), queryResult.getResults(), queryResult.getTotal());
-        }
-        catch (DSpaceSolrException ex)
-        {
+        } catch (DSpaceSolrException ex) {
             log.error(ex.getMessage(), ex);
             return new ListItemsResults(false, new ArrayList<Item>());
         }
     }
 
-    private QueryResult retrieveItems (List<ScopedFilter> filters, int offset, int length) throws DSpaceSolrException {
+    private QueryResult retrieveItems(List<ScopedFilter> filters, int offset, int length) throws DSpaceSolrException {
         List<Item> list = new ArrayList<Item>();
         SolrQuery params = new SolrQuery(solrQueryResolver.buildQuery(filters))
-                .setRows(length)
-                .setStart(offset);
+            .setRows(length)
+            .setStart(offset);
         SolrDocumentList solrDocuments = DSpaceSolrSearch.query(server, params);
-        for (SolrDocument doc : solrDocuments)
+        for (SolrDocument doc : solrDocuments) {
             list.add(new DSpaceSolrItem(doc));
-        return new QueryResult(list, (solrDocuments.getNumFound() > offset + length), (int) solrDocuments.getNumFound());
+        }
+        return new QueryResult(list, (solrDocuments.getNumFound() > offset + length),
+                               (int) solrDocuments.getNumFound());
     }
 
     private class QueryResult {

dspace-oai/src/main/java/org/dspace/xoai/services/impl/xoai/DSpaceRepositoryConfiguration.java

@@ -7,6 +7,14 @@
  */
 package org.dspace.xoai.services.impl.xoai;
 
+import java.io.File;
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import javax.servlet.http.HttpServletRequest;
+
 import com.lyncode.xoai.dataprovider.core.DeleteMethod;
 import com.lyncode.xoai.dataprovider.core.Granularity;
 import com.lyncode.xoai.dataprovider.services.api.RepositoryConfiguration;
@@ -15,26 +23,16 @@ import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
 import org.dspace.core.Context;
 import org.dspace.xoai.exceptions.InvalidMetadataFieldException;
-import org.dspace.xoai.services.api.config.ConfigurationService;
 import org.dspace.xoai.services.api.EarliestDateResolver;
+import org.dspace.xoai.services.api.config.ConfigurationService;
 import org.springframework.web.context.request.RequestContextHolder;
 import org.springframework.web.context.request.ServletRequestAttributes;
 
-import javax.servlet.http.HttpServletRequest;
-import java.io.File;
-import java.io.IOException;
-import java.sql.SQLException;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  * @author Domingo Iglesias (diglesias at ub dot edu)
  */
-public class DSpaceRepositoryConfiguration implements RepositoryConfiguration
-{
+public class DSpaceRepositoryConfiguration implements RepositoryConfiguration {
     private static Logger log = LogManager.getLogger(DSpaceRepositoryConfiguration.class);
 
     private List<String> emails = null;
@@ -44,126 +42,120 @@ public class DSpaceRepositoryConfiguration implements RepositoryConfiguration
     private EarliestDateResolver dateResolver;
     private ConfigurationService configurationService;
 
-    public DSpaceRepositoryConfiguration(EarliestDateResolver dateResolver, ConfigurationService configurationService, Context context)
-    {
+    public DSpaceRepositoryConfiguration(EarliestDateResolver dateResolver, ConfigurationService configurationService,
+                                         Context context) {
         this.dateResolver = dateResolver;
         this.configurationService = configurationService;
         this.context = context;
     }
 
     @Override
-    public List<String> getAdminEmails()
-    {
-        if (emails == null)
-        {
+    public List<String> getAdminEmails() {
+        if (emails == null) {
             emails = new ArrayList<String>();
             String result = configurationService.getProperty("mail.admin");
-            if (result == null)
-            {
-                log.warn("{ OAI 2.0 :: DSpace } Not able to retrieve the mail.admin property from the configuration file");
-            }
-            else
+            if (result == null) {
+                log.warn(
+                    "{ OAI 2.0 :: DSpace } Not able to retrieve the mail.admin property from the configuration file");
+            } else {
                 emails.add(result);
+            }
         }
         return emails;
     }
 
     @Override
-    public String getBaseUrl()
-    {
-        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.currentRequestAttributes()).getRequest();
-        if (baseUrl == null)
-        {
+    public String getBaseUrl() {
+        HttpServletRequest request = ((ServletRequestAttributes) RequestContextHolder.currentRequestAttributes())
+            .getRequest();
+        if (baseUrl == null) {
             baseUrl = configurationService.getProperty("oai.url");
             if (baseUrl == null) {
-                log.warn("{ OAI 2.0 :: DSpace } Not able to retrieve the oai.url property from oai.cfg. Falling back to request address");
+                log.warn(
+                    "{ OAI 2.0 :: DSpace } Not able to retrieve the oai.url property from oai.cfg. Falling back to " +
+                        "request address");
                 baseUrl = request.getRequestURL().toString()
-                    .replace(request.getPathInfo(), "");    
+                                 .replace(request.getPathInfo(), "");
             }
         }
         return baseUrl + request.getPathInfo();
     }
 
     @Override
-    public DeleteMethod getDeleteMethod()
-    {
+    public DeleteMethod getDeleteMethod() {
         return DeleteMethod.TRANSIENT;
     }
 
     @Override
-    public Date getEarliestDate()
-    {
+    public Date getEarliestDate() {
         // Look at the database!
-        try
-        {
+        try {
             return dateResolver.getEarliestDate(context);
-        }
-        catch (SQLException e)
-        {
+        } catch (SQLException e) {
             log.error(e.getMessage(), e);
-        }
-        catch (InvalidMetadataFieldException e)
-        {
+        } catch (InvalidMetadataFieldException e) {
             log.error(e.getMessage(), e);
         }
         return new Date();
     }
 
     @Override
-    public Granularity getGranularity()
-    {
+    public Granularity getGranularity() {
         return Granularity.Second;
     }
 
     @Override
-    public String getRepositoryName()
-    {
-        if (name == null)
-        {
+    public String getRepositoryName() {
+        if (name == null) {
             name = configurationService.getProperty("dspace.name");
-            if (name == null)
-            {
-                log.warn("{ OAI 2.0 :: DSpace } Not able to retrieve the dspace.name property from the configuration file");
+            if (name == null) {
+                log.warn(
+                    "{ OAI 2.0 :: DSpace } Not able to retrieve the dspace.name property from the configuration file");
                 name = "OAI Repository";
             }
         }
         return name;
     }
 
-	@Override
-	public List<String> getDescription() {
-		List<String> result = new ArrayList<String>();
-		String descriptionFile = configurationService.getProperty("oai", "description.file");
-		if (descriptionFile == null) {
-			// Try indexed
-			boolean stop = false;
-			List<String> descriptionFiles = new ArrayList<String>();
-			for (int i=0;!stop;i++) {
-				String tmp = configurationService.getProperty("oai", "description.file."+i);
-				if (tmp == null) stop = true;
-				else descriptionFiles.add(tmp);
-			}
-			
-			for (String path : descriptionFiles) {
-				try {
-				    File f = new File(path);
-				    if (f.exists())
-				        result.add(FileUtils.readFileToString(f));
-				} catch (IOException e) {
-					log.debug(e.getMessage(), e);
-				}
-			}
-			
-		} else {
-			try {
-			    File f = new File(descriptionFile);
-			    if (f.exists())
-			        result.add(FileUtils.readFileToString(f));
-			} catch (IOException e) {
-				log.debug(e.getMessage(), e);
-			}
-		}
-		return result;
-	}
+    @Override
+    public List<String> getDescription() {
+        List<String> result = new ArrayList<String>();
+        String descriptionFile = configurationService.getProperty("oai", "description.file");
+        if (descriptionFile == null) {
+            // Try indexed
+            boolean stop = false;
+            List<String> descriptionFiles = new ArrayList<String>();
+            for (int i = 0; !stop; i++) {
+                String tmp = configurationService.getProperty("oai", "description.file." + i);
+                if (tmp == null) {
+                    stop = true;
+                } else {
+                    descriptionFiles.add(tmp);
+                }
+            }
+
+            for (String path : descriptionFiles) {
+                try {
+                    File f = new File(path);
+                    if (f.exists()) {
+                        result.add(FileUtils.readFileToString(f));
+                    }
+                } catch (IOException e) {
+                    log.debug(e.getMessage(), e);
+                }
+            }
+
+        } else {
+            try {
+                File f = new File(descriptionFile);
+                if (f.exists()) {
+                    result.add(FileUtils.readFileToString(f));
+                }
+            } catch (IOException e) {
+                log.debug(e.getMessage(), e);
+            }
+        }
+        return result;
+    }
 
 }

dspace-oai/src/main/java/org/dspace/xoai/services/impl/xoai/DSpaceResumptionTokenFormatter.java

@@ -7,6 +7,8 @@
  */
 package org.dspace.xoai.services.impl.xoai;
 
+import java.util.Date;
+
 import com.lyncode.xoai.dataprovider.core.ResumptionToken;
 import com.lyncode.xoai.dataprovider.exceptions.BadResumptionToken;
 import com.lyncode.xoai.dataprovider.services.api.ResumptionTokenFormatter;
@@ -14,12 +16,10 @@ import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
 import org.dspace.xoai.util.DateUtils;
 
-import java.util.Date;
-
 
 public class DSpaceResumptionTokenFormatter implements ResumptionTokenFormatter {
     private static Logger log = LogManager
-            .getLogger(DSpaceResumptionTokenFormatter.class);
+        .getLogger(DSpaceResumptionTokenFormatter.class);
 
     public DSpaceResumptionTokenFormatter() {
         // TODO Auto-generated constructor stub
@@ -27,10 +27,13 @@ public class DSpaceResumptionTokenFormatter implements ResumptionTokenFormatter
 
     @Override
     public ResumptionToken parse(String resumptionToken) throws BadResumptionToken {
-        if (resumptionToken == null) return new ResumptionToken();
+        if (resumptionToken == null) {
+            return new ResumptionToken();
+        }
         String[] res = resumptionToken.split("/", -1);
-        if (res.length != 5) throw new BadResumptionToken();
-        else {
+        if (res.length != 5) {
+            throw new BadResumptionToken();
+        } else {
             try {
                 int offset = Integer.parseInt(res[4]);
                 String prefix = (res[0].equals("")) ? null : res[0];
@@ -49,17 +52,21 @@ public class DSpaceResumptionTokenFormatter implements ResumptionTokenFormatter
     @Override
     public String format(ResumptionToken resumptionToken) {
         String result = "";
-        if (resumptionToken.hasMetadataPrefix())
+        if (resumptionToken.hasMetadataPrefix()) {
             result += resumptionToken.getMetadataPrefix();
+        }
         result += "/";
-        if (resumptionToken.hasFrom())
+        if (resumptionToken.hasFrom()) {
             result += DateUtils.format(resumptionToken.getFrom());
+        }
         result += "/";
-        if (resumptionToken.hasUntil())
+        if (resumptionToken.hasUntil()) {
             result += DateUtils.format(resumptionToken.getUntil());
+        }
         result += "/";
-        if (resumptionToken.hasSet())
+        if (resumptionToken.hasSet()) {
             result += resumptionToken.getSet();
+        }
         result += "/";
         result += resumptionToken.getOffset();
         return result;

dspace-oai/src/main/java/org/dspace/xoai/services/impl/xoai/DSpaceSetRepository.java

@@ -7,6 +7,10 @@
  */
 package org.dspace.xoai.services.impl.xoai;
 
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
 import com.lyncode.xoai.dataprovider.core.ListSetsResult;
 import com.lyncode.xoai.dataprovider.core.Set;
 import com.lyncode.xoai.dataprovider.services.api.SetRepository;
@@ -15,24 +19,18 @@ import org.apache.log4j.Logger;
 import org.dspace.content.Collection;
 import org.dspace.content.Community;
 import org.dspace.content.DSpaceObject;
-import org.dspace.core.Context;
-import org.dspace.xoai.data.DSpaceSet;
-
-import java.sql.SQLException;
-import java.util.ArrayList;
-import java.util.List;
 import org.dspace.content.factory.ContentServiceFactory;
 import org.dspace.content.service.CollectionService;
 import org.dspace.content.service.CommunityService;
+import org.dspace.core.Context;
 import org.dspace.handle.factory.HandleServiceFactory;
 import org.dspace.handle.service.HandleService;
+import org.dspace.xoai.data.DSpaceSet;
 
 /**
- *
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class DSpaceSetRepository implements SetRepository
-{
+public class DSpaceSetRepository implements SetRepository {
     private static final Logger log = LogManager.getLogger(DSpaceSetRepository.class);
 
     private final Context _context;
@@ -41,39 +39,30 @@ public class DSpaceSetRepository implements SetRepository
     private final CommunityService communityService;
     private final CollectionService collectionService;
 
-    public DSpaceSetRepository(Context context)
-    {
+    public DSpaceSetRepository(Context context) {
         _context = context;
         handleService = HandleServiceFactory.getInstance().getHandleService();
         communityService = ContentServiceFactory.getInstance().getCommunityService();
         collectionService = ContentServiceFactory.getInstance().getCollectionService();
     }
 
-    private int getCommunityCount()
-    {
-        try
-        {
+    private int getCommunityCount() {
+        try {
             List<Community> communityList = communityService.findAll(_context);
 
             return communityList.size();
-        }
-        catch (SQLException e)
-        {
+        } catch (SQLException e) {
             log.error(e.getMessage(), e);
         }
         return 0;
     }
 
-    private int getCollectionCount()
-    {
-        try
-        {
+    private int getCollectionCount() {
+        try {
             List<Collection> collectionList = collectionService.findAll(_context);
 
             return collectionList.size();
-        }
-        catch (SQLException e)
-        {
+        } catch (SQLException e) {
             log.error(e.getMessage(), e);
         }
         return 0;
@@ -87,23 +76,18 @@ public class DSpaceSetRepository implements SetRepository
      * @param length return up to this many Sets.
      * @return some Sets representing the Community list segment.
      */
-    private List<Set> community(int offset, int length)
-    {
+    private List<Set> community(int offset, int length) {
         List<Set> array = new ArrayList<Set>();
 
-        try
-        {
+        try {
             List<Community> communityList = communityService.findAll(_context, length, offset);
 
-            for(Community community : communityList)
-            {
+            for (Community community : communityList) {
                 array.add(DSpaceSet.newDSpaceCommunitySet(
-                        community.getHandle(),
-                        community.getName()));
+                    community.getHandle(),
+                    community.getName()));
             }
-        }
-        catch (SQLException e)
-        {
+        } catch (SQLException e) {
             log.error(e.getMessage(), e);
         }
         return array;
@@ -117,31 +101,25 @@ public class DSpaceSetRepository implements SetRepository
      * @param length return up to this many Sets.
      * @return some Sets representing the Collection list segment.
      */
-    private List<Set> collection(int offset, int length)
-    {
+    private List<Set> collection(int offset, int length) {
         List<Set> array = new ArrayList<Set>();
 
-        try
-        {
+        try {
             List<Collection> collectionList = collectionService.findAll(_context, length, offset);
 
-            for(Collection collection : collectionList)
-            {
+            for (Collection collection : collectionList) {
                 array.add(DSpaceSet.newDSpaceCollectionSet(
-                        collection.getHandle(),
-                        collection.getName()));
+                    collection.getHandle(),
+                    collection.getName()));
             }
-        }
-        catch (SQLException e)
-        {
+        } catch (SQLException e) {
             log.error(e.getMessage(), e);
         }
         return array;
     }
 
     @Override
-    public ListSetsResult retrieveSets(int offset, int length)
-    {
+    public ListSetsResult retrieveSets(int offset, int length) {
         // Only database sets (virtual sets are added by lyncode common library)
         log.debug("Querying sets. Offset: " + offset + " - Length: " + length);
         List<Set> array = new ArrayList<Set>();
@@ -150,66 +128,53 @@ public class DSpaceSetRepository implements SetRepository
         int collectionCount = this.getCollectionCount();
         log.debug("Collections: " + collectionCount);
 
-        if (offset < communityCount)
-        {
-            if (offset + length > communityCount)
-            {
+        if (offset < communityCount) {
+            if (offset + length > communityCount) {
                 // Add some collections
                 List<Set> tmp = community(offset, length);
                 array.addAll(tmp);
                 array.addAll(collection(0, length - tmp.size()));
-            }
-            else
+            } else {
                 array.addAll(community(offset, length));
-        }
-        else if (offset < communityCount + collectionCount)
-        {
+            }
+        } else if (offset < communityCount + collectionCount) {
             array.addAll(collection(offset - communityCount, length));
         }
         log.debug("Has More Results: "
-                + ((offset + length < communityCount + collectionCount) ? "Yes"
-                        : "No"));
+                      + ((offset + length < communityCount + collectionCount) ? "Yes"
+            : "No"));
         return new ListSetsResult(offset + length < communityCount
-                + collectionCount, array, communityCount + collectionCount);
+            + collectionCount, array, communityCount + collectionCount);
     }
 
     @Override
-    public boolean supportSets()
-    {
+    public boolean supportSets() {
         return true;
     }
 
     @Override
-    public boolean exists(String setSpec)
-    {
-        if (setSpec.startsWith("col_"))
-        {
-            try
-            {
+    public boolean exists(String setSpec) {
+        if (setSpec.startsWith("col_")) {
+            try {
 
                 DSpaceObject dso = handleService.resolveToObject(_context,
-                        setSpec.replace("col_", "").replace("_", "/"));
-                if (dso == null || !(dso instanceof Collection))
+                                                                 setSpec.replace("col_", "").replace("_", "/"));
+                if (dso == null || !(dso instanceof Collection)) {
                     return false;
+                }
                 return true;
-            }
-            catch (SQLException ex)
-            {
+            } catch (SQLException ex) {
                 log.error(ex.getMessage(), ex);
             }
-        }
-        else if (setSpec.startsWith("com_"))
-        {
-            try
-            {
+        } else if (setSpec.startsWith("com_")) {
+            try {
                 DSpaceObject dso = handleService.resolveToObject(_context,
-                        setSpec.replace("com_", "").replace("_", "/"));
-                if (dso == null || !(dso instanceof Community))
+                                                                 setSpec.replace("com_", "").replace("_", "/"));
+                if (dso == null || !(dso instanceof Community)) {
                     return false;
+                }
                 return true;
-            }
-            catch (SQLException ex)
-            {
+            } catch (SQLException ex) {
                 log.error(ex.getMessage(), ex);
             }
         }

dspace-oai/src/main/java/org/dspace/xoai/solr/DSpaceSolrSearch.java

@@ -19,40 +19,37 @@ import org.dspace.xoai.solr.exceptions.DSpaceSolrException;
 import org.dspace.xoai.solr.exceptions.SolrSearchEmptyException;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class DSpaceSolrSearch
-{
+public class DSpaceSolrSearch {
+
+    /**
+     * Default constructor
+     */
+    private DSpaceSolrSearch() { }
+
     public static SolrDocumentList query(SolrServer server, SolrQuery solrParams)
-            throws DSpaceSolrException
-    {
-        try
-        {
+        throws DSpaceSolrException {
+        try {
             solrParams.addSortField("item.id", ORDER.asc);
             QueryResponse response = server.query(solrParams);
             return response.getResults();
-        }
-        catch (SolrServerException ex)
-        {
+        } catch (SolrServerException ex) {
             throw new DSpaceSolrException(ex.getMessage(), ex);
         }
     }
 
     public static SolrDocument querySingle(SolrServer server, SolrQuery solrParams)
-            throws SolrSearchEmptyException
-    {
-        try
-        {
+        throws SolrSearchEmptyException {
+        try {
             solrParams.addSortField("item.id", ORDER.asc);
             QueryResponse response = server.query(solrParams);
-            if (response.getResults().getNumFound() > 0)
+            if (response.getResults().getNumFound() > 0) {
                 return response.getResults().get(0);
-            else
+            } else {
                 throw new SolrSearchEmptyException();
-        }
-        catch (SolrServerException ex)
-        {
+            }
+        } catch (SolrServerException ex) {
             throw new SolrSearchEmptyException(ex.getMessage(), ex);
         }
     }

dspace-oai/src/main/java/org/dspace/xoai/solr/DSpaceSolrServer.java

@@ -16,27 +16,25 @@ import org.apache.solr.client.solrj.impl.HttpSolrServer;
 import org.dspace.core.ConfigurationManager;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class DSpaceSolrServer
-{
+public class DSpaceSolrServer {
     private static Logger log = LogManager.getLogger(DSpaceSolrServer.class);
 
     private static SolrServer _server = null;
 
-    public static SolrServer getServer() throws SolrServerException
-    {
-        if (_server == null)
-        {
-            try
-            {
+    /**
+     * Default constructor
+     */
+    private DSpaceSolrServer() { }
+
+    public static SolrServer getServer() throws SolrServerException {
+        if (_server == null) {
+            try {
                 _server = new HttpSolrServer(
-                        ConfigurationManager.getProperty("oai", "solr.url"));
+                    ConfigurationManager.getProperty("oai", "solr.url"));
                 log.debug("Solr Server Initialized");
-            }            
-            catch (Exception e)
-            {
+            } catch (Exception e) {
                 log.error(e.getMessage(), e);
             }
         }

dspace-oai/src/main/java/org/dspace/xoai/solr/exceptions/DSpaceSolrException.java

@@ -8,35 +8,29 @@
 package org.dspace.xoai.solr.exceptions;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
 @SuppressWarnings("serial")
-public class DSpaceSolrException extends Exception
-{
+public class DSpaceSolrException extends Exception {
 
     /**
      * Creates a new instance of <code>DSpaceSolrException</code> without detail
      * message.
      */
-    public DSpaceSolrException()
-    {
+    public DSpaceSolrException() {
     }
 
     /**
      * Constructs an instance of <code>DSpaceSolrException</code> with the
      * specified detail message.
-     * 
-     * @param msg
-     *            the detail message.
+     *
+     * @param msg the detail message.
      */
-    public DSpaceSolrException(String msg)
-    {
+    public DSpaceSolrException(String msg) {
         super(msg);
     }
 
-    public DSpaceSolrException(String msg, Throwable t)
-    {
+    public DSpaceSolrException(String msg, Throwable t) {
         super(msg, t);
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/solr/exceptions/DSpaceSolrIndexerException.java

@@ -9,34 +9,28 @@
 package org.dspace.xoai.solr.exceptions;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
 @SuppressWarnings("serial")
-public class DSpaceSolrIndexerException extends Exception
-{
+public class DSpaceSolrIndexerException extends Exception {
     /**
      * Creates a new instance of <code>DSpaceSolrException</code> without detail
      * message.
      */
-    public DSpaceSolrIndexerException()
-    {
+    public DSpaceSolrIndexerException() {
     }
 
     /**
      * Constructs an instance of <code>DSpaceSolrException</code> with the
      * specified detail message.
-     * 
-     * @param msg
-     *            the detail message.
+     *
+     * @param msg the detail message.
      */
-    public DSpaceSolrIndexerException(String msg)
-    {
+    public DSpaceSolrIndexerException(String msg) {
         super(msg);
     }
 
-    public DSpaceSolrIndexerException(String msg, Throwable t)
-    {
+    public DSpaceSolrIndexerException(String msg, Throwable t) {
         super(msg, t);
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/solr/exceptions/SolrSearchEmptyException.java

@@ -9,35 +9,29 @@
 package org.dspace.xoai.solr.exceptions;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
 @SuppressWarnings("serial")
-public class SolrSearchEmptyException extends Exception
-{
+public class SolrSearchEmptyException extends Exception {
 
     /**
      * Creates a new instance of <code>SolrSearchEmptyException</code> without
      * detail message.
      */
-    public SolrSearchEmptyException()
-    {
+    public SolrSearchEmptyException() {
     }
 
     /**
      * Constructs an instance of <code>SolrSearchEmptyException</code> with the
      * specified detail message.
-     * 
-     * @param msg
-     *            the detail message.
+     *
+     * @param msg the detail message.
      */
-    public SolrSearchEmptyException(String msg)
-    {
+    public SolrSearchEmptyException(String msg) {
         super(msg);
     }
 
-    public SolrSearchEmptyException(String msg, Throwable t)
-    {
+    public SolrSearchEmptyException(String msg, Throwable t) {
         super(msg, t);
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/util/DateUtils.java

@@ -7,24 +7,26 @@
  */
 package org.dspace.xoai.util;
 
-import org.apache.log4j.LogManager;
-import org.apache.log4j.Logger;
-
 import java.text.ParseException;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.Locale;
 import java.util.TimeZone;
 
+import org.apache.log4j.LogManager;
+import org.apache.log4j.Logger;
+
 /**
- *
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class DateUtils
-{
+public class DateUtils {
 
     private static Logger log = LogManager.getLogger(DateUtils.class);
 
+    /**
+     * Default constructor
+     */
+    private DateUtils() { }
 
     /**
      * Format a Date object as a valid UTC Date String, per OAI-PMH guidelines
@@ -33,13 +35,12 @@ public class DateUtils
      * @param date Date object
      * @return UTC date string
      */
-    public static String format(Date date)
-    {
+    public static String format(Date date) {
         // NOTE: OAI-PMH REQUIRES that all dates be expressed in UTC format
         // as YYYY-MM-DDThh:mm:ssZ  For more details, see
         // http://www.openarchives.org/OAI/openarchivesprotocol.html#DatestampsResponses
         SimpleDateFormat sdf = new SimpleDateFormat(
-                "yyyy-MM-dd'T'HH:mm:ss'Z'");
+            "yyyy-MM-dd'T'HH:mm:ss'Z'");
         // We indicate that the returned date is in UTC so we have
         // to set the time zone of sdf correctly
         sdf.setTimeZone(TimeZone.getTimeZone("UTC"));
@@ -49,57 +50,42 @@ public class DateUtils
 
     /**
      * Parse a string into a Date object
+     *
      * @param date string to parse
      * @return Date
      */
-    public static Date parse(String date)
-    {
+    public static Date parse(String date) {
         // First try to parse as a full UTC date/time, e.g. 2008-01-01T00:00:00Z
         SimpleDateFormat format = new SimpleDateFormat(
-                "yyyy-MM-dd'T'HH:mm:ss'Z'");
+            "yyyy-MM-dd'T'HH:mm:ss'Z'");
         format.setTimeZone(TimeZone.getTimeZone("UTC"));
         Date ret;
-        try
-        {
+        try {
             ret = format.parse(date);
             return ret;
-        }
-        catch (ParseException ex)
-        {
+        } catch (ParseException ex) {
             // If a parse exception, try other logical date/time formats
             // based on the local timezone
             format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss",
-                    Locale.getDefault());
-            try
-            {
+                                          Locale.getDefault());
+            try {
                 return format.parse(date);
-            }
-            catch (ParseException e1)
-            {
+            } catch (ParseException e1) {
                 format = new SimpleDateFormat("yyyy-MM-dd",
-                        Locale.getDefault());
-                try
-                {
+                                              Locale.getDefault());
+                try {
                     return format.parse(date);
-                }
-                catch (ParseException e2)
-                {
+                } catch (ParseException e2) {
                     format = new SimpleDateFormat("yyyy-MM",
-                            Locale.getDefault());
-                    try
-                    {
+                                                  Locale.getDefault());
+                    try {
                         return format.parse(date);
-                    }
-                    catch (ParseException e3)
-                    {
+                    } catch (ParseException e3) {
                         format = new SimpleDateFormat("yyyy",
-                                Locale.getDefault());
-                        try
-                        {
+                                                      Locale.getDefault());
+                        try {
                             return format.parse(date);
-                        }
-                        catch (ParseException e4)
-                        {
+                        } catch (ParseException e4) {
                             log.error(e4.getMessage(), e4);
                         }
                     }
@@ -109,19 +95,15 @@ public class DateUtils
         return new Date();
     }
 
-    public static Date parseFromSolrDate(String date)
-    {
+    public static Date parseFromSolrDate(String date) {
         SimpleDateFormat format = new SimpleDateFormat(
-                "yyyy-MM-dd'T'HH:mm:ss'Z'");
+            "yyyy-MM-dd'T'HH:mm:ss'Z'");
         format.setTimeZone(TimeZone.getTimeZone("UTC"));
         Date ret;
-        try
-        {
+        try {
             ret = format.parse(date);
             return ret;
-        }
-        catch (ParseException e)
-        {
+        } catch (ParseException e) {
             log.error(e.getMessage(), e);
         }
         return new Date();

dspace-oai/src/main/java/org/dspace/xoai/util/ItemUtils.java

@@ -7,123 +7,124 @@
  */
 package org.dspace.xoai.util;
 
-import com.lyncode.xoai.dataprovider.xml.xoai.Element;
-import com.lyncode.xoai.dataprovider.xml.xoai.Metadata;
-import com.lyncode.xoai.util.Base64Utils;
-import org.apache.log4j.LogManager;
-import org.apache.log4j.Logger;
-import org.dspace.authorize.AuthorizeException;
-import org.dspace.content.*;
-import org.dspace.content.authority.Choices;
-import org.dspace.core.ConfigurationManager;
-import org.dspace.core.Constants;
-import org.dspace.core.Utils;
-import org.dspace.xoai.data.DSpaceItem;
-
 import java.io.ByteArrayOutputStream;
 import java.io.IOException;
 import java.io.InputStream;
 import java.sql.SQLException;
 import java.util.List;
+
+import com.lyncode.xoai.dataprovider.xml.xoai.Element;
+import com.lyncode.xoai.dataprovider.xml.xoai.Metadata;
+import com.lyncode.xoai.util.Base64Utils;
+import org.apache.log4j.LogManager;
+import org.apache.log4j.Logger;
 import org.dspace.app.util.factory.UtilServiceFactory;
 import org.dspace.app.util.service.MetadataExposureService;
+import org.dspace.authorize.AuthorizeException;
+import org.dspace.content.Bitstream;
+import org.dspace.content.Bundle;
+import org.dspace.content.Item;
+import org.dspace.content.MetadataField;
+import org.dspace.content.MetadataValue;
+import org.dspace.content.authority.Choices;
 import org.dspace.content.factory.ContentServiceFactory;
 import org.dspace.content.service.BitstreamService;
 import org.dspace.content.service.ItemService;
+import org.dspace.core.ConfigurationManager;
+import org.dspace.core.Constants;
 import org.dspace.core.Context;
+import org.dspace.core.Utils;
+import org.dspace.xoai.data.DSpaceItem;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
 @SuppressWarnings("deprecation")
-public class ItemUtils
-{
+public class ItemUtils {
     private static final Logger log = LogManager.getLogger(ItemUtils.class);
-    
+
     private static final MetadataExposureService metadataExposureService
-            = UtilServiceFactory.getInstance().getMetadataExposureService();
+        = UtilServiceFactory.getInstance().getMetadataExposureService();
 
     private static final ItemService itemService
-            = ContentServiceFactory.getInstance().getItemService();
+        = ContentServiceFactory.getInstance().getItemService();
 
     private static final BitstreamService bitstreamService
-            = ContentServiceFactory.getInstance().getBitstreamService();
+        = ContentServiceFactory.getInstance().getBitstreamService();
 
-    private static Element getElement(List<Element> list, String name)
-    {
-        for (Element e : list)
-            if (name.equals(e.getName()))
+    /**
+     * Default constructor
+     */
+    private ItemUtils() { }
+
+    private static Element getElement(List<Element> list, String name) {
+        for (Element e : list) {
+            if (name.equals(e.getName())) {
                 return e;
+            }
+        }
 
         return null;
     }
-    private static Element create(String name)
-    {
+
+    private static Element create(String name) {
         Element e = new Element();
         e.setName(name);
         return e;
     }
 
     private static Element.Field createValue(
-            String name, String value)
-    {
+        String name, String value) {
         Element.Field e = new Element.Field();
         e.setValue(value);
         e.setName(name);
         return e;
     }
-    public static Metadata retrieveMetadata (Context context, Item item) {
+
+    public static Metadata retrieveMetadata(Context context, Item item) {
         Metadata metadata;
 
         // read all metadata into Metadata Object
         metadata = new Metadata();
         List<MetadataValue> vals = itemService.getMetadata(item, Item.ANY, Item.ANY, Item.ANY, Item.ANY);
-        for (MetadataValue val : vals)
-        {
+        for (MetadataValue val : vals) {
             MetadataField field = val.getMetadataField();
-            
+
             // Don't expose fields that are hidden by configuration
             try {
                 if (metadataExposureService.isHidden(context,
-                        field.getMetadataSchema().getName(),
-                        field.getElement(),
-                        field.getQualifier()))
-                {
+                                                     field.getMetadataSchema().getName(),
+                                                     field.getElement(),
+                                                     field.getQualifier())) {
                     continue;
                 }
-            } catch(SQLException se) {
+            } catch (SQLException se) {
                 throw new RuntimeException(se);
             }
 
             Element valueElem = null;
             Element schema = getElement(metadata.getElement(), field.getMetadataSchema().getName());
-            if (schema == null)
-            {
+            if (schema == null) {
                 schema = create(field.getMetadataSchema().getName());
                 metadata.getElement().add(schema);
             }
             valueElem = schema;
 
             // Has element.. with XOAI one could have only schema and value
-            if (field.getElement() != null && !field.getElement().equals(""))
-            {
+            if (field.getElement() != null && !field.getElement().equals("")) {
                 Element element = getElement(schema.getElement(),
-                        field.getElement());
-                if (element == null)
-                {
+                                             field.getElement());
+                if (element == null) {
                     element = create(field.getElement());
                     schema.getElement().add(element);
                 }
                 valueElem = element;
 
                 // Qualified element?
-                if (field.getQualifier() != null && !field.getQualifier().equals(""))
-                {
+                if (field.getQualifier() != null && !field.getQualifier().equals("")) {
                     Element qualifier = getElement(element.getElement(),
-                            field.getQualifier());
-                    if (qualifier == null)
-                    {
+                                                   field.getQualifier());
+                    if (qualifier == null) {
                         qualifier = create(field.getQualifier());
                         element.getElement().add(qualifier);
                     }
@@ -132,23 +133,18 @@ public class ItemUtils
             }
 
             // Language?
-            if (val.getLanguage() != null && !val.getLanguage().equals(""))
-            {
+            if (val.getLanguage() != null && !val.getLanguage().equals("")) {
                 Element language = getElement(valueElem.getElement(),
-                        val.getLanguage());
-                if (language == null)
-                {
+                                              val.getLanguage());
+                if (language == null) {
                     language = create(val.getLanguage());
                     valueElem.getElement().add(language);
                 }
                 valueElem = language;
-            }
-            else
-            {
+            } else {
                 Element language = getElement(valueElem.getElement(),
-                        "none");
-                if (language == null)
-                {
+                                              "none");
+                if (language == null) {
                     language = create("none");
                     valueElem.getElement().add(language);
                 }
@@ -158,8 +154,9 @@ public class ItemUtils
             valueElem.getField().add(createValue("value", val.getValue()));
             if (val.getAuthority() != null) {
                 valueElem.getField().add(createValue("authority", val.getAuthority()));
-                if (val.getConfidence() != Choices.CF_NOVALUE)
+                if (val.getConfidence() != Choices.CF_NOVALUE) {
                     valueElem.getField().add(createValue("confidence", val.getConfidence() + ""));
+                }
             }
         }
         // Done! Metadata has been read!
@@ -168,55 +165,46 @@ public class ItemUtils
         metadata.getElement().add(bundles);
 
         List<Bundle> bs;
-        try
-        {
+        try {
             bs = item.getBundles();
-            for (Bundle b : bs)
-            {
+            for (Bundle b : bs) {
                 Element bundle = create("bundle");
                 bundles.getElement().add(bundle);
                 bundle.getField()
-                        .add(createValue("name", b.getName()));
+                      .add(createValue("name", b.getName()));
 
                 Element bitstreams = create("bitstreams");
                 bundle.getElement().add(bitstreams);
                 List<Bitstream> bits = b.getBitstreams();
-                for (Bitstream bit : bits)
-                {
+                for (Bitstream bit : bits) {
                     Element bitstream = create("bitstream");
                     bitstreams.getElement().add(bitstream);
                     String url = "";
                     String bsName = bit.getName();
                     String sid = String.valueOf(bit.getSequenceID());
                     String baseUrl = ConfigurationManager.getProperty("oai",
-                            "bitstream.baseUrl");
+                                                                      "bitstream.baseUrl");
                     String handle = null;
                     // get handle of parent Item of this bitstream, if there
                     // is one:
                     List<Bundle> bn = bit.getBundles();
-                    if (!bn.isEmpty())
-                    {
+                    if (!bn.isEmpty()) {
                         List<Item> bi = bn.get(0).getItems();
-                        if (!bi.isEmpty())
-                        {
+                        if (!bi.isEmpty()) {
                             handle = bi.get(0).getHandle();
                         }
                     }
-                    if (bsName == null)
-                    {
+                    if (bsName == null) {
                         List<String> ext = bit.getFormat(context).getExtensions();
                         bsName = "bitstream_" + sid
-                                + (ext.isEmpty() ? "" : ext.get(0));
+                            + (ext.isEmpty() ? "" : ext.get(0));
                     }
-                    if (handle != null && baseUrl != null)
-                    {
+                    if (handle != null && baseUrl != null) {
                         url = baseUrl + "/bitstream/"
-                                + handle + "/"
-                                + sid + "/"
-                                + URLUtils.encode(bsName);
-                    }
-                    else
-                    {
+                            + handle + "/"
+                            + sid + "/"
+                            + URLUtils.encode(bsName);
+                    } else {
                         url = URLUtils.encode(bsName);
                     }
 
@@ -226,96 +214,89 @@ public class ItemUtils
                     String name = bit.getName();
                     String description = bit.getDescription();
 
-                    if (name != null)
+                    if (name != null) {
                         bitstream.getField().add(
-                                createValue("name", name));
-                    if (oname != null)
+                            createValue("name", name));
+                    }
+                    if (oname != null) {
                         bitstream.getField().add(
-                                createValue("originalName", name));
-                    if (description != null)
+                            createValue("originalName", name));
+                    }
+                    if (description != null) {
                         bitstream.getField().add(
-                                createValue("description", description));
+                            createValue("description", description));
+                    }
                     bitstream.getField().add(
-                            createValue("format", bit.getFormat(context)
-                                    .getMIMEType()));
+                        createValue("format", bit.getFormat(context)
+                                                 .getMIMEType()));
                     bitstream.getField().add(
-                            createValue("size", "" + bit.getSize()));
+                        createValue("size", "" + bit.getSize()));
                     bitstream.getField().add(createValue("url", url));
                     bitstream.getField().add(
-                            createValue("checksum", cks));
+                        createValue("checksum", cks));
                     bitstream.getField().add(
-                            createValue("checksumAlgorithm", cka));
+                        createValue("checksumAlgorithm", cka));
                     bitstream.getField().add(
-                            createValue("sid", bit.getSequenceID()
-                                    + ""));
+                        createValue("sid", bit.getSequenceID()
+                            + ""));
                 }
             }
-        }
-        catch (SQLException e1)
-        {
+        } catch (SQLException e1) {
             e1.printStackTrace();
         }
-        
+
 
         // Other info
         Element other = create("others");
 
         other.getField().add(
-                createValue("handle", item.getHandle()));
+            createValue("handle", item.getHandle()));
         other.getField().add(
-                createValue("identifier", DSpaceItem.buildIdentifier(item.getHandle())));
+            createValue("identifier", DSpaceItem.buildIdentifier(item.getHandle())));
         other.getField().add(
-                createValue("lastModifyDate", item
-                        .getLastModified().toString()));
+            createValue("lastModifyDate", item
+                .getLastModified().toString()));
         metadata.getElement().add(other);
 
         // Repository Info
         Element repository = create("repository");
         repository.getField().add(
-                createValue("name",
+            createValue("name",
                         ConfigurationManager.getProperty("dspace.name")));
         repository.getField().add(
-                createValue("mail",
+            createValue("mail",
                         ConfigurationManager.getProperty("mail.admin")));
         metadata.getElement().add(repository);
 
         // Licensing info
         Element license = create("license");
         List<Bundle> licBundles;
-        try
-        {
+        try {
             licBundles = itemService.getBundles(item, Constants.LICENSE_BUNDLE_NAME);
-            if (!licBundles.isEmpty())
-            {
+            if (!licBundles.isEmpty()) {
                 Bundle licBundle = licBundles.get(0);
                 List<Bitstream> licBits = licBundle.getBitstreams();
-                if (!licBits.isEmpty())
-                {
+                if (!licBits.isEmpty()) {
                     Bitstream licBit = licBits.get(0);
                     InputStream in;
-                    try
-                    {
+                    try {
                         in = bitstreamService.retrieve(context, licBit);
                         ByteArrayOutputStream out = new ByteArrayOutputStream();
                         Utils.bufferedCopy(in, out);
                         license.getField().add(
-                                createValue("bin",
+                            createValue("bin",
                                         Base64Utils.encode(out.toString())));
                         metadata.getElement().add(license);
-                    }
-                    catch (AuthorizeException | IOException | SQLException e)
-                    {
+                    } catch (AuthorizeException | IOException | SQLException e) {
                         log.warn(e.getMessage(), e);
                     }
 
                 }
             }
-        }
-        catch (SQLException e1)
-        {
+        } catch (SQLException e1) {
             log.warn(e1.getMessage(), e1);
         }
-        
+
         return metadata;
     }
 }

dspace-oai/src/main/java/org/dspace/xoai/util/URLUtils.java

@@ -7,28 +7,29 @@
  */
 package org.dspace.xoai.util;
 
+import java.io.UnsupportedEncodingException;
+
 import org.apache.log4j.LogManager;
 import org.apache.log4j.Logger;
 import org.dspace.app.util.Util;
 import org.dspace.core.Constants;
-import java.io.UnsupportedEncodingException;
 
 /**
- * 
  * @author Lyncode Development Team (dspace at lyncode dot com)
  */
-public class URLUtils
-{
+public class URLUtils {
     private static Logger log = LogManager.getLogger(URLUtils.class);
 
-    public static String encode (String value) {
-        try
-        {
-        	return Util.encodeBitstreamName(value, Constants.DEFAULT_ENCODING);
+    /**
+     * Default constructor
+     */
+    private URLUtils() { }
 
-        }
-        catch (UnsupportedEncodingException e)
-        {
+    public static String encode(String value) {
+        try {
+            return Util.encodeBitstreamName(value, Constants.DEFAULT_ENCODING);
+
+        } catch (UnsupportedEncodingException e) {
             log.warn(e.getMessage(), e);
             return value;
         }

dspace-oai/src/main/webapp/WEB-INF/spring/applicationContext.xml

@@ -8,36 +8,34 @@
     http://www.dspace.org/license/
 
 -->
-<beans 
-    xmlns="http://www.springframework.org/schema/beans"
-    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
-    xmlns:util="http://www.springframework.org/schema/util"
-    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
-                           http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.3.xsd">
+<beans
+        xmlns="http://www.springframework.org/schema/beans"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.3.xsd">
 
     <!-- Acquires the DSpace Utility Class with initialized Service Manager -->
     <bean id="dspace" class="org.dspace.utils.DSpace"/>
-    
-    <!-- Acquires reference to EventService --> 
+
+    <!-- Acquires reference to EventService -->
     <bean id="dspace.eventService" factory-bean="dspace" factory-method="getEventService"/>
 
     <!-- Inject the Default LoggerUsageEventListener into the EventService  -->
     <bean class="org.dspace.usage.LoggerUsageEventListener">
-    	<property name="eventService" >
-    		<ref bean="dspace.eventService"/>
-    	</property>
+        <property name="eventService">
+            <ref bean="dspace.eventService"/>
+        </property>
     </bean>
-       
+
     <!-- Inject the SolrLoggerUsageEventListener into the EventService  -->
     <bean class="org.dspace.statistics.SolrLoggerUsageEventListener">
-        <property name="eventService" >
+        <property name="eventService">
             <ref bean="dspace.eventService"/>
         </property>
     </bean>
 
     <!-- Google Analytics recording  -->
     <bean class="org.dspace.google.GoogleRecorderEventListener">
-        <property name="eventService" >
+        <property name="eventService">
             <ref bean="dspace.eventService"/>
         </property>
     </bean>

dspace-oai/src/main/webapp/WEB-INF/web.xml

@@ -9,16 +9,16 @@
 
 -->
 <web-app id="XOAILynCode" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee"
-		xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
-		xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
-	
-	<display-name>XOAI Data Provider</display-name>
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
 
-	<context-param>
-		<description>The location of the DSpace home directory</description>
-		<param-name>dspace.dir</param-name>
-		<param-value>${dspace.dir}</param-value>
-	</context-param>
+    <display-name>XOAI Data Provider</display-name>
+
+    <context-param>
+        <description>The location of the DSpace home directory</description>
+        <param-name>dspace.dir</param-name>
+        <param-value>${dspace.dir}</param-value>
+    </context-param>
 
 
     <!-- Location of root application context configs (to be loaded by ContextLoaderListener below) -->
@@ -36,7 +36,7 @@
     <!-- Initializes the DSpace Kernel -->
     <listener>
         <listener-class>
-		  org.dspace.servicemanager.servlet.DSpaceKernelServletContextListener
+            org.dspace.servicemanager.servlet.DSpaceKernelServletContextListener
         </listener-class>
     </listener>
 
@@ -50,7 +50,7 @@
         <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
     </listener>
 
-	<servlet>
+    <servlet>
         <servlet-name>oai</servlet-name>
         <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
         <!-- Configure DispatcherServlet to use AnnotationConfigWebApplicationContext

dspace-oai/src/test/java/org/dspace/xoai/tests/DSpaceBasicTestConfiguration.java

@@ -7,9 +7,11 @@
  */
 package org.dspace.xoai.tests;
 
+import static org.mockito.Mockito.mock;
+
+import org.dspace.xoai.services.api.FieldResolver;
 import org.dspace.xoai.services.api.config.ConfigurationService;
 import org.dspace.xoai.services.api.context.ContextService;
-import org.dspace.xoai.services.api.FieldResolver;
 import org.dspace.xoai.services.api.xoai.DSpaceFilterResolver;
 import org.dspace.xoai.services.impl.xoai.BaseDSpaceFilterResolver;
 import org.dspace.xoai.tests.helpers.stubs.StubbedConfigurationService;
@@ -17,15 +19,13 @@ import org.dspace.xoai.tests.helpers.stubs.StubbedFieldResolver;
 import org.springframework.context.annotation.Bean;
 import org.springframework.context.annotation.Configuration;
 
-import static org.mockito.Mockito.mock;
-
 @Configuration
 public class DSpaceBasicTestConfiguration {
 
     private final StubbedFieldResolver stubbedFieldResolver = new StubbedFieldResolver();
 
     @Bean
-    public DSpaceFilterResolver dSpaceFilterResolver () {
+    public DSpaceFilterResolver dSpaceFilterResolver() {
         return new BaseDSpaceFilterResolver();
     }
 
@@ -38,12 +38,12 @@ public class DSpaceBasicTestConfiguration {
     }
 
     @Bean
-    public ContextService contextService () {
+    public ContextService contextService() {
         return mock(ContextService.class);
     }
 
     @Bean
-    public FieldResolver databaseService () {
+    public FieldResolver databaseService() {
         return stubbedFieldResolver;
     }
 }

dspace-oai/src/test/java/org/dspace/xoai/tests/DSpaceTestConfiguration.java

@@ -11,11 +11,11 @@ import com.lyncode.xoai.dataprovider.services.api.ItemRepository;
 import com.lyncode.xoai.dataprovider.services.api.ResourceResolver;
 import com.lyncode.xoai.dataprovider.services.api.SetRepository;
 import org.dspace.core.Context;
+import org.dspace.xoai.services.api.EarliestDateResolver;
 import org.dspace.xoai.services.api.cache.XOAICacheService;
 import org.dspace.xoai.services.api.config.XOAIManagerResolver;
 import org.dspace.xoai.services.api.context.ContextService;
 import org.dspace.xoai.services.api.context.ContextServiceException;
-import org.dspace.xoai.services.api.EarliestDateResolver;
 import org.dspace.xoai.services.api.xoai.IdentifyResolver;
 import org.dspace.xoai.services.api.xoai.ItemRepositoryResolver;
 import org.dspace.xoai.services.api.xoai.SetRepositoryResolver;
@@ -82,7 +82,8 @@ public class DSpaceTestConfiguration extends WebMvcConfigurerAdapter {
 
     private StubbedSetRepository setRepository = new StubbedSetRepository();
 
-    @Bean StubbedSetRepository setRepository () {
+    @Bean
+    StubbedSetRepository setRepository() {
         return setRepository;
     }
 
@@ -99,8 +100,9 @@ public class DSpaceTestConfiguration extends WebMvcConfigurerAdapter {
             }
         };
     }
+
     @Bean
-    public SetRepositoryResolver setRepositoryResolver () {
+    public SetRepositoryResolver setRepositoryResolver() {
         return new SetRepositoryResolver() {
             @Override
             public SetRepository getSetRepository() throws ContextServiceException {
@@ -108,13 +110,14 @@ public class DSpaceTestConfiguration extends WebMvcConfigurerAdapter {
             }
         };
     }
+
     @Bean
-    public IdentifyResolver identifyResolver () {
+    public IdentifyResolver identifyResolver() {
         return new DSpaceIdentifyResolver();
     }
 
     @Bean
-    public EarliestDateResolver earliestDateResolver () {
+    public EarliestDateResolver earliestDateResolver() {
         return new StubbedEarliestDateResolver();
     }
 }

dspace-oai/src/test/java/org/dspace/xoai/tests/helpers/HttpRequestBuilder.java

@@ -7,16 +7,16 @@
  */
 package org.dspace.xoai.tests.helpers;
 
-import org.springframework.mock.web.MockHttpServletRequest;
-
-import javax.servlet.http.HttpServletRequest;
 import java.net.URI;
 import java.net.URISyntaxException;
+import javax.servlet.http.HttpServletRequest;
+
+import org.springframework.mock.web.MockHttpServletRequest;
 
 public class HttpRequestBuilder {
     private MockHttpServletRequest request = new MockHttpServletRequest();
 
-    public HttpRequestBuilder withUrl (String url) {
+    public HttpRequestBuilder withUrl(String url) {
         try {
             URI uri = new URI(url);
         } catch (URISyntaxException e) {
@@ -25,12 +25,12 @@ public class HttpRequestBuilder {
         return this;
     }
 
-    public HttpRequestBuilder usingGetMethod () {
+    public HttpRequestBuilder usingGetMethod() {
         request.setMethod("GET");
         return this;
     }
 
-    public HttpServletRequest build () {
+    public HttpServletRequest build() {
 
         return request;
     }

dspace-oai/src/test/java/org/dspace/xoai/tests/helpers/SyntacticSugar.java

@@ -8,13 +8,15 @@
 package org.dspace.xoai.tests.helpers;
 
 public class SyntacticSugar {
-    public static <T> T given (T elem) {
+    public static <T> T given(T elem) {
         return elem;
     }
-    public static <T> T the (T elem) {
+
+    public static <T> T the(T elem) {
         return elem;
     }
-    public static <T> T and (T elem) {
+
+    public static <T> T and(T elem) {
         return elem;
     }
 }

dspace-oai/src/test/java/org/dspace/xoai/tests/helpers/stubs/ItemRepositoryBuilder.java

@@ -7,6 +7,16 @@
  */
 package org.dspace.xoai.tests.helpers.stubs;
 
+import static com.lyncode.xoai.dataprovider.core.Granularity.Second;
+
+import java.io.ByteArrayOutputStream;
+import java.sql.SQLException;
+import java.text.ParseException;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+import javax.xml.stream.XMLStreamException;
+
 import com.lyncode.xoai.builders.dataprovider.ElementBuilder;
 import com.lyncode.xoai.builders.dataprovider.MetadataBuilder;
 import com.lyncode.xoai.dataprovider.exceptions.MetadataBindException;
@@ -16,16 +26,6 @@ import com.lyncode.xoai.dataprovider.xml.xoai.Metadata;
 import org.apache.solr.client.solrj.SolrServer;
 import org.apache.solr.common.SolrInputDocument;
 
-import javax.xml.stream.XMLStreamException;
-import java.io.ByteArrayOutputStream;
-import java.sql.SQLException;
-import java.text.ParseException;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-
-import static com.lyncode.xoai.dataprovider.core.Granularity.Second;
-
 public class ItemRepositoryBuilder {
     private SolrServer solrServer;
 
@@ -33,7 +33,7 @@ public class ItemRepositoryBuilder {
         this.solrServer = solrServer;
     }
 
-    public ItemRepositoryBuilder withItem (DSpaceItemBuilder builder) {
+    public ItemRepositoryBuilder withItem(DSpaceItemBuilder builder) {
         try {
             solrServer.add(index(builder));
             solrServer.commit();
@@ -44,7 +44,8 @@ public class ItemRepositoryBuilder {
     }
 
 
-    private SolrInputDocument index(DSpaceItemBuilder item) throws SQLException, MetadataBindException, ParseException, XMLStreamException, WritingXmlException {
+    private SolrInputDocument index(DSpaceItemBuilder item)
+        throws SQLException, MetadataBindException, ParseException, XMLStreamException, WritingXmlException {
         SolrInputDocument doc = new SolrInputDocument();
 
         doc.addField("item.id", item.getId());
@@ -54,11 +55,13 @@ public class ItemRepositoryBuilder {
         doc.addField("item.handle", item.getHandle());
         doc.addField("item.deleted", item.isDeleted());
 
-        for (String col : item.getCollections())
+        for (String col : item.getCollections()) {
             doc.addField("item.collections", col);
+        }
 
-        for (String col : item.getCommunities())
+        for (String col : item.getCommunities()) {
             doc.addField("item.communities", col);
+        }
 
         ByteArrayOutputStream out = new ByteArrayOutputStream();
         XmlOutputContext context = XmlOutputContext.emptyContext(out, Second);
@@ -82,38 +85,42 @@ public class ItemRepositoryBuilder {
         private boolean aPublic = true;
 
 
-        public DSpaceItemBuilder withLastModifiedDate (Date lastModifiedDate) {
+        public DSpaceItemBuilder withLastModifiedDate(Date lastModifiedDate) {
             this.lastModifiedDate = lastModifiedDate;
             return this;
         }
 
-        public DSpaceItemBuilder withCollection (String colName) {
+        public DSpaceItemBuilder withCollection(String colName) {
             collections.add(colName);
             return this;
         }
-        public DSpaceItemBuilder withCommunity (String comName) {
+
+        public DSpaceItemBuilder withCommunity(String comName) {
             communities.add(comName);
             return this;
         }
-        public DSpaceItemBuilder whichSsPublic () {
+
+        public DSpaceItemBuilder whichSsPublic() {
             aPublic = true;
             return this;
         }
-        public DSpaceItemBuilder whichSsPrivate () {
+
+        public DSpaceItemBuilder whichSsPrivate() {
             aPublic = false;
             return this;
         }
 
-        public DSpaceItemBuilder whichIsDeleted () {
+        public DSpaceItemBuilder whichIsDeleted() {
             this.deleted = true;
             return this;
         }
-        public DSpaceItemBuilder whichIsNotDeleted () {
+
+        public DSpaceItemBuilder whichIsNotDeleted() {
             this.deleted = false;
             return this;
         }
 
-        public DSpaceItemBuilder withMetadata (String schema, String element, String value) {
+        public DSpaceItemBuilder withMetadata(String schema, String element, String value) {
             metadataBuilder.withElement(new ElementBuilder().withName(schema).withField(element, value).build());
             return this;
         }
@@ -122,17 +129,17 @@ public class ItemRepositoryBuilder {
             return handle;
         }
 
-        public DSpaceItemBuilder withHandle (String handle) {
+        public DSpaceItemBuilder withHandle(String handle) {
             this.handle = handle;
             return this;
         }
 
-        public DSpaceItemBuilder withSubmitter (String submitter) {
+        public DSpaceItemBuilder withSubmitter(String submitter) {
             this.submitter = submitter;
             return this;
         }
 
-        public DSpaceItemBuilder withId (int id) {
+        public DSpaceItemBuilder withId(int id) {
             this.id = id;
             return this;
         }

dspace-oai/src/test/java/org/dspace/xoai/tests/helpers/stubs/StubbedConfigurationService.java

@@ -7,36 +7,36 @@
  */
 package org.dspace.xoai.tests.helpers.stubs;
 
-import org.dspace.xoai.services.api.config.ConfigurationService;
-
 import java.util.HashMap;
 import java.util.Map;
 
+import org.dspace.xoai.services.api.config.ConfigurationService;
+
 public class StubbedConfigurationService implements ConfigurationService {
     private Map<String, Object> values = new HashMap<String, Object>();
 
 
-    public StubbedConfigurationService hasBooleanProperty (String key, boolean value) {
+    public StubbedConfigurationService hasBooleanProperty(String key, boolean value) {
         values.put(key, value);
         return this;
     }
 
-    public StubbedConfigurationService hasBooleanProperty (String module, String key, boolean value) {
+    public StubbedConfigurationService hasBooleanProperty(String module, String key, boolean value) {
         values.put(module + "." + key, value);
         return this;
     }
 
-    public StubbedConfigurationService hasProperty (String key, String value) {
+    public StubbedConfigurationService hasProperty(String key, String value) {
         values.put(key, value);
         return this;
     }
 
-    public StubbedConfigurationService withoutProperty (String key) {
+    public StubbedConfigurationService withoutProperty(String key) {
         values.remove(key);
         return this;
     }
 
-    public StubbedConfigurationService hasProperty (String module, String key, String value) {
+    public StubbedConfigurationService hasProperty(String module, String key, String value) {
         values.put(module + "." + key, value);
         return this;
     }
@@ -54,7 +54,10 @@ public class StubbedConfigurationService implements ConfigurationService {
     @Override
     public boolean getBooleanProperty(String module, String key, boolean defaultValue) {
         Boolean value = (Boolean) values.get(module + "." + key);
-        if (value == null) return defaultValue;
-        else return value;
+        if (value == null) {
+            return defaultValue;
+        } else {
+            return value;
+        }
     }
 }

dspace-oai/src/test/java/org/dspace/xoai/tests/helpers/stubs/StubbedEarliestDateResolver.java

@@ -7,17 +7,17 @@
  */
 package org.dspace.xoai.tests.helpers.stubs;
 
+import java.sql.SQLException;
+import java.util.Date;
+
 import org.dspace.core.Context;
 import org.dspace.xoai.exceptions.InvalidMetadataFieldException;
 import org.dspace.xoai.services.api.EarliestDateResolver;
 
-import java.sql.SQLException;
-import java.util.Date;
-
 public class StubbedEarliestDateResolver implements EarliestDateResolver {
     private Date date = new Date();
 
-    public StubbedEarliestDateResolver is (Date date) {
+    public StubbedEarliestDateResolver is(Date date) {
         this.date = date;
         return this;
     }

dspace-oai/src/test/java/org/dspace/xoai/tests/helpers/stubs/StubbedFieldResolver.java

@@ -7,21 +7,23 @@
  */
 package org.dspace.xoai.tests.helpers.stubs;
 
-import org.dspace.core.Context;
-import org.dspace.xoai.exceptions.InvalidMetadataFieldException;
-import org.dspace.xoai.services.api.FieldResolver;
-
 import java.sql.SQLException;
 import java.util.HashMap;
 import java.util.Map;
 
+import org.dspace.core.Context;
+import org.dspace.xoai.exceptions.InvalidMetadataFieldException;
+import org.dspace.xoai.services.api.FieldResolver;
+
 public class StubbedFieldResolver implements FieldResolver {
     private Map<String, Integer> fieldsMap = new HashMap<String, Integer>();
 
     @Override
     public int getFieldID(Context context, String field) throws InvalidMetadataFieldException, SQLException {
         Integer integer = fieldsMap.get(field);
-        if (integer == null) return -1;
+        if (integer == null) {
+            return -1;
+        }
         return integer;
     }
 

dspace-oai/src/test/java/org/dspace/xoai/tests/helpers/stubs/StubbedResourceResolver.java

@@ -7,15 +7,15 @@
  */
 package org.dspace.xoai.tests.helpers.stubs;
 
-import com.lyncode.xoai.dataprovider.services.api.ResourceResolver;
-
-import javax.xml.transform.Transformer;
-import javax.xml.transform.TransformerConfigurationException;
-import javax.xml.transform.TransformerFactory;
 import java.io.IOException;
 import java.io.InputStream;
 import java.util.HashMap;
 import java.util.Map;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerConfigurationException;
+import javax.xml.transform.TransformerFactory;
+
+import com.lyncode.xoai.dataprovider.services.api.ResourceResolver;
 
 public class StubbedResourceResolver implements ResourceResolver {
     private static TransformerFactory factory = TransformerFactory.newInstance();

dspace-oai/src/test/java/org/dspace/xoai/tests/helpers/stubs/StubbedSetRepository.java

@@ -8,15 +8,15 @@
 package org.dspace.xoai.tests.helpers.stubs;
 
 
-import com.lyncode.xoai.dataprovider.core.ListSetsResult;
-import com.lyncode.xoai.dataprovider.core.Set;
-import com.lyncode.xoai.dataprovider.services.api.SetRepository;
+import static java.lang.Math.min;
+import static org.apache.commons.lang.RandomStringUtils.randomAlphabetic;
 
 import java.util.ArrayList;
 import java.util.List;
 
-import static java.lang.Math.min;
-import static org.apache.commons.lang.RandomStringUtils.randomAlphabetic;
+import com.lyncode.xoai.dataprovider.core.ListSetsResult;
+import com.lyncode.xoai.dataprovider.core.Set;
+import com.lyncode.xoai.dataprovider.services.api.SetRepository;
 
 public class StubbedSetRepository implements SetRepository {
     private List<Set> sets = new ArrayList<Set>();
@@ -29,15 +29,20 @@ public class StubbedSetRepository implements SetRepository {
 
     @Override
     public ListSetsResult retrieveSets(int offset, int length) {
-        if (offset > sets.size()) return new ListSetsResult(false, new ArrayList<Set>(), sets.size());
-        return new ListSetsResult(offset+length < sets.size(), sets.subList(offset, min(offset + length, sets.size())), sets.size());
+        if (offset > sets.size()) {
+            return new ListSetsResult(false, new ArrayList<Set>(), sets.size());
+        }
+        return new ListSetsResult(offset + length < sets.size(),
+                                  sets.subList(offset, min(offset + length, sets.size())), sets.size());
     }
 
     @Override
     public boolean exists(String setSpec) {
-        for (Set set : sets)
-            if (set.getSetSpec().equals(setSpec))
+        for (Set set : sets) {
+            if (set.getSetSpec().equals(setSpec)) {
                 return true;
+            }
+        }
 
         return false;
     }
@@ -46,18 +51,21 @@ public class StubbedSetRepository implements SetRepository {
         this.supports = true;
         return this;
     }
+
     public StubbedSetRepository doesNotSupportSets() {
         this.supports = false;
         return this;
     }
+
     public StubbedSetRepository withSet(String name, String spec) {
         this.sets.add(new Set(spec, name));
         return this;
     }
 
     public StubbedSetRepository withRandomlyGeneratedSets(int number) {
-        for (int i=0;i<number;i++)
+        for (int i = 0; i < number; i++) {
             this.sets.add(new Set(randomAlphabetic(10), randomAlphabetic(10)));
+        }
         return this;
     }
 

dspace-oai/src/test/java/org/dspace/xoai/tests/helpers/stubs/StubbedXOAIManagerResolver.java

@@ -17,13 +17,14 @@ import org.dspace.xoai.services.api.xoai.DSpaceFilterResolver;
 import org.springframework.beans.factory.annotation.Autowired;
 
 public class StubbedXOAIManagerResolver implements XOAIManagerResolver {
-    @Autowired ResourceResolver resourceResolver;
+    @Autowired
+    ResourceResolver resourceResolver;
     @Autowired
     DSpaceFilterResolver filterResolver;
 
     private Configuration builder = new Configuration();
 
-    public Configuration configuration () {
+    public Configuration configuration() {
         return builder;
     }
 

dspace-oai/src/test/java/org/dspace/xoai/tests/integration/xoai/AbstractDSpaceTest.java

@@ -7,6 +7,13 @@
  */
 package org.dspace.xoai.tests.integration.xoai;
 
+import static org.springframework.test.web.servlet.setup.MockMvcBuilders.webAppContextSetup;
+
+import java.util.Date;
+import java.util.regex.Matcher;
+import java.util.regex.Pattern;
+import javax.xml.xpath.XPathExpressionException;
+
 import com.lyncode.builder.MapBuilder;
 import com.lyncode.xoai.dataprovider.services.api.ResourceResolver;
 import com.lyncode.xoai.dataprovider.services.impl.BaseDateProvider;
@@ -14,12 +21,18 @@ import com.lyncode.xoai.dataprovider.xml.xoaiconfig.Configuration;
 import com.lyncode.xoai.dataprovider.xml.xoaiconfig.FormatConfiguration;
 import org.apache.solr.client.solrj.SolrServer;
 import org.dspace.xoai.controller.DSpaceOAIDataProvider;
-import org.dspace.xoai.services.api.config.ConfigurationService;
-import org.dspace.xoai.services.api.config.XOAIManagerResolver;
 import org.dspace.xoai.services.api.EarliestDateResolver;
 import org.dspace.xoai.services.api.FieldResolver;
+import org.dspace.xoai.services.api.config.ConfigurationService;
+import org.dspace.xoai.services.api.config.XOAIManagerResolver;
 import org.dspace.xoai.tests.DSpaceTestConfiguration;
-import org.dspace.xoai.tests.helpers.stubs.*;
+import org.dspace.xoai.tests.helpers.stubs.ItemRepositoryBuilder;
+import org.dspace.xoai.tests.helpers.stubs.StubbedConfigurationService;
+import org.dspace.xoai.tests.helpers.stubs.StubbedEarliestDateResolver;
+import org.dspace.xoai.tests.helpers.stubs.StubbedFieldResolver;
+import org.dspace.xoai.tests.helpers.stubs.StubbedResourceResolver;
+import org.dspace.xoai.tests.helpers.stubs.StubbedSetRepository;
+import org.dspace.xoai.tests.helpers.stubs.StubbedXOAIManagerResolver;
 import org.junit.After;
 import org.junit.Before;
 import org.junit.runner.RunWith;
@@ -33,20 +46,14 @@ import org.springframework.test.web.servlet.result.MockMvcResultMatchers;
 import org.springframework.test.web.servlet.result.XpathResultMatchers;
 import org.springframework.web.context.WebApplicationContext;
 
-import javax.xml.xpath.XPathExpressionException;
-import java.util.Date;
-import java.util.regex.Matcher;
-import java.util.regex.Pattern;
-
-import static org.springframework.test.web.servlet.setup.MockMvcBuilders.webAppContextSetup;
-
 
 @RunWith(SpringJUnit4ClassRunner.class)
 @WebAppConfiguration
-@ContextConfiguration(classes = { DSpaceTestConfiguration.class, DSpaceOAIDataProvider.class })
+@ContextConfiguration(classes = {DSpaceTestConfiguration.class, DSpaceOAIDataProvider.class})
 public abstract class AbstractDSpaceTest {
     private static BaseDateProvider baseDateProvider = new BaseDateProvider();
-    @Autowired WebApplicationContext wac;
+    @Autowired
+    WebApplicationContext wac;
     private MockMvc mockMvc;
 
     private StubbedXOAIManagerResolver xoaiManagerResolver;
@@ -69,7 +76,7 @@ public abstract class AbstractDSpaceTest {
         resourceResolver = (StubbedResourceResolver) this.wac.getBean(ResourceResolver.class);
         xoaiManagerResolver.configuration();
     }
-    
+
     @After
     public void teardown() {
         // Nullify all resources so that JUnit will clean them up
@@ -84,30 +91,32 @@ public abstract class AbstractDSpaceTest {
     }
 
     protected MockMvc againstTheDataProvider() {
-        if (this.mockMvc == null) this.mockMvc = webAppContextSetup(this.wac).build();
+        if (this.mockMvc == null) {
+            this.mockMvc = webAppContextSetup(this.wac).build();
+        }
         return this.mockMvc;
     }
 
-    protected Configuration theConfiguration () {
+    protected Configuration theConfiguration() {
         return xoaiManagerResolver.configuration();
     }
 
-    protected StubbedConfigurationService theDSpaceConfiguration () {
+    protected StubbedConfigurationService theDSpaceConfiguration() {
         return configurationService;
     }
 
-    protected StubbedFieldResolver theDatabase () {
+    protected StubbedFieldResolver theDatabase() {
         return databaseService;
     }
 
-    protected StubbedEarliestDateResolver theEarlistEarliestDate () {
+    protected StubbedEarliestDateResolver theEarlistEarliestDate() {
         return earliestDateResolver;
     }
 
     protected XpathResultMatchers oaiXPath(String xpath) throws XPathExpressionException {
         return MockMvcResultMatchers.xpath(this.replaceXpath(xpath), new MapBuilder<String, String>()
-                .withPair("o", "http://www.openarchives.org/OAI/2.0/")
-                .build());
+            .withPair("o", "http://www.openarchives.org/OAI/2.0/")
+            .build());
     }
 
     private String replaceXpath(String xpath) {
@@ -116,22 +125,25 @@ public abstract class AbstractDSpaceTest {
         Pattern pattern = Pattern.compile("/[^/]+");
         Matcher matcher = pattern.matcher(xpath);
         while (matcher.find()) {
-            if (matcher.start() > offset) newXpath += xpath.substring(offset, matcher.start());
-            if (!matcher.group().contains(":") && !matcher.group().startsWith("/@"))
+            if (matcher.start() > offset) {
+                newXpath += xpath.substring(offset, matcher.start());
+            }
+            if (!matcher.group().contains(":") && !matcher.group().startsWith("/@")) {
                 newXpath += "/o:" + matcher.group().substring(1);
-            else
+            } else {
                 newXpath += matcher.group();
+            }
             offset = matcher.end() + 1;
         }
 
         return newXpath;
     }
 
-    protected String representationOfDate (Date date) {
+    protected String representationOfDate(Date date) {
         return baseDateProvider.format(date);
     }
 
-    protected StubbedSetRepository theSetRepository () {
+    protected StubbedSetRepository theSetRepository() {
         return setRepository;
     }
 
@@ -166,8 +178,9 @@ public abstract class AbstractDSpaceTest {
     private ItemRepositoryBuilder itemRepositoryBuilder;
 
     public ItemRepositoryBuilder theItemRepository() {
-        if (itemRepositoryBuilder == null)
+        if (itemRepositoryBuilder == null) {
             itemRepositoryBuilder = new ItemRepositoryBuilder(solrServer);
+        }
         return itemRepositoryBuilder;
     }
 }

dspace-oai/src/test/java/org/dspace/xoai/tests/integration/xoai/IdentifyTest.java

@@ -7,16 +7,16 @@
  */
 package org.dspace.xoai.tests.integration.xoai;
 
-import org.junit.Test;
-
-import java.util.Date;
-
 import static org.dspace.xoai.tests.helpers.SyntacticSugar.and;
 import static org.dspace.xoai.tests.helpers.SyntacticSugar.given;
 import static org.hamcrest.core.Is.is;
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
+import java.util.Date;
+
+import org.junit.Test;
+
 public class IdentifyTest extends AbstractDSpaceTest {
 
     public static final Date EARLIEST_DATE = new Date();
@@ -24,26 +24,27 @@ public class IdentifyTest extends AbstractDSpaceTest {
     @Test
     public void requestForIdentifyWithoutRequiredConfigurationAdminEmailSetShouldFail() throws Exception {
         given(theDSpaceConfiguration()
-                .withoutProperty("mail.admin"));
+                  .withoutProperty("mail.admin"));
         and(given(theConfiguration().withContextConfigurations(aContext("request"))));
 
         againstTheDataProvider().perform(get("/request?verb=Identify"))
-            .andExpect(status().isInternalServerError());
+                                .andExpect(status().isInternalServerError());
     }
 
     @Test
     public void requestForIdentifyShouldReturnTheConfiguredValues() throws Exception {
         given(theDSpaceConfiguration()
-                .hasProperty("dspace.name", "Test")
-                .hasProperty("mail.admin", "test@test.com"));
+                  .hasProperty("dspace.name", "Test")
+                  .hasProperty("mail.admin", "test@test.com"));
 
         and(given(theEarlistEarliestDate().is(EARLIEST_DATE)));
         and(given(theConfiguration().withContextConfigurations(aContext("request"))));
 
         againstTheDataProvider().perform(get("/request?verb=Identify"))
-                .andExpect(status().isOk())
-                .andExpect(oaiXPath("//repositoryName").string("Test"))
-                .andExpect(oaiXPath("//adminEmail").string("test@test.com"))
-                .andExpect(oaiXPath("//earliestDatestamp").string(is(representationOfDate(EARLIEST_DATE))));
+                                .andExpect(status().isOk())
+                                .andExpect(oaiXPath("//repositoryName").string("Test"))
+                                .andExpect(oaiXPath("//adminEmail").string("test@test.com"))
+                                .andExpect(
+                                    oaiXPath("//earliestDatestamp").string(is(representationOfDate(EARLIEST_DATE))));
     }
 }

dspace-oai/src/test/java/org/dspace/xoai/tests/integration/xoai/ListSetsTest.java

@@ -7,8 +7,6 @@
  */
 package org.dspace.xoai.tests.integration.xoai;
 
-import org.junit.Test;
-
 import static org.dspace.xoai.tests.helpers.SyntacticSugar.and;
 import static org.dspace.xoai.tests.helpers.SyntacticSugar.given;
 import static org.hamcrest.core.Is.is;
@@ -16,50 +14,52 @@ import static org.springframework.test.web.servlet.request.MockMvcRequestBuilder
 import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
+import org.junit.Test;
+
 public class ListSetsTest extends AbstractDSpaceTest {
     @Test
-    public void listSetsWithLessSetsThenMaxSetsPerPage () throws Exception {
+    public void listSetsWithLessSetsThenMaxSetsPerPage() throws Exception {
         given(theConfiguration()
-                .withMaxListSetsSize(100)
-                .withContextConfigurations(aContext("request")));
+                  .withMaxListSetsSize(100)
+                  .withContextConfigurations(aContext("request")));
         and(given(theSetRepository()
-                .doesSupportSets()
-                .withSet("name", "spec")));
+                      .doesSupportSets()
+                      .withSet("name", "spec")));
 
         againstTheDataProvider().perform(get("/request?verb=ListSets"))
-                .andExpect(status().isOk())
-                .andDo(print())
-                .andExpect(responseDate().exists())
-                .andExpect(verb(is("ListSets")))
-                .andExpect(oaiXPath("//set").nodeCount(1))
-                .andExpect(oaiXPath("//set/setSpec").string("spec"))
-                .andExpect(oaiXPath("//set/setName").string("name"))
-                .andExpect(resumptionToken().doesNotExist());
+                                .andExpect(status().isOk())
+                                .andDo(print())
+                                .andExpect(responseDate().exists())
+                                .andExpect(verb(is("ListSets")))
+                                .andExpect(oaiXPath("//set").nodeCount(1))
+                                .andExpect(oaiXPath("//set/setSpec").string("spec"))
+                                .andExpect(oaiXPath("//set/setName").string("name"))
+                                .andExpect(resumptionToken().doesNotExist());
     }
 
     @Test
-    public void listSetsWithMoreSetsThenMaxSetsPerPage () throws Exception {
+    public void listSetsWithMoreSetsThenMaxSetsPerPage() throws Exception {
         given(theConfiguration()
-                .withMaxListSetsSize(10)
-                .withContextConfigurations(aContext("request")));
+                  .withMaxListSetsSize(10)
+                  .withContextConfigurations(aContext("request")));
 
         and(given(theSetRepository()
-                .doesSupportSets()
-                .withRandomlyGeneratedSets(20)));
+                      .doesSupportSets()
+                      .withRandomlyGeneratedSets(20)));
 
         againstTheDataProvider().perform(get("/request?verb=ListSets"))
-                .andExpect(status().isOk())
-                .andExpect(responseDate().exists())
-                .andExpect(verb(is("ListSets")))
-                .andExpect(oaiXPath("//set").nodeCount(10))
-                .andExpect(resumptionToken().string("////10"))
-                .andExpect(oaiXPath("//resumptionToken/@completeListSize").number(Double.valueOf(20)));
+                                .andExpect(status().isOk())
+                                .andExpect(responseDate().exists())
+                                .andExpect(verb(is("ListSets")))
+                                .andExpect(oaiXPath("//set").nodeCount(10))
+                                .andExpect(resumptionToken().string("////10"))
+                                .andExpect(oaiXPath("//resumptionToken/@completeListSize").number(Double.valueOf(20)));
 
         and(againstTheDataProvider().perform(get("/request?verb=ListSets&resumptionToken=////10"))
-                .andExpect(status().isOk())
-                .andExpect(responseDate().exists())
-                .andExpect(verb(is("ListSets")))
-                .andExpect(oaiXPath("//set").nodeCount(10))
-                .andExpect(resumptionToken().string("")));
+                                    .andExpect(status().isOk())
+                                    .andExpect(responseDate().exists())
+                                    .andExpect(verb(is("ListSets")))
+                                    .andExpect(oaiXPath("//set").nodeCount(10))
+                                    .andExpect(resumptionToken().string("")));
     }
 }

dspace-oai/src/test/java/org/dspace/xoai/tests/integration/xoai/OAIContextTest.java

@@ -7,29 +7,29 @@
  */
 package org.dspace.xoai.tests.integration.xoai;
 
-import org.junit.Test;
-
 import static org.springframework.test.web.servlet.request.MockMvcRequestBuilders.get;
 import static org.springframework.test.web.servlet.result.MockMvcResultHandlers.print;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.model;
 import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status;
 
+import org.junit.Test;
+
 public class OAIContextTest extends AbstractDSpaceTest {
     public static final String ROOT_URL = "/";
 
     @Test
     public void requestToRootShouldGiveListOfContextsWithBadRequestError() throws Exception {
         againstTheDataProvider().perform(get(ROOT_URL))
-                .andDo(print())
-                .andExpect(status().isBadRequest())
-                .andExpect(model().attributeExists("contexts"));
+                                .andDo(print())
+                                .andExpect(status().isBadRequest())
+                                .andExpect(model().attributeExists("contexts"));
     }
 
     @Test
     public void requestForUnknownContextShouldGiveListOfContextsWithBadRequestError() throws Exception {
         againstTheDataProvider().perform(get("/unexistentContext"))
-                .andDo(print())
-                .andExpect(status().isBadRequest())
-                .andExpect(model().attributeExists("contexts"));
+                                .andDo(print())
+                                .andExpect(status().isBadRequest())
+                                .andExpect(model().attributeExists("contexts"));
     }
 }

dspace-oai/src/test/java/org/dspace/xoai/tests/integration/xoai/PipelineTest.java

@@ -8,31 +8,31 @@
 
 package org.dspace.xoai.tests.integration.xoai;
 
-import com.lyncode.xoai.util.XSLPipeline;
-import org.junit.Test;
-import org.parboiled.common.FileUtils;
-
-import javax.xml.transform.TransformerFactory;
-import javax.xml.transform.stream.StreamSource;
-import java.io.InputStream;
-
 import static com.lyncode.test.matchers.xml.XPathMatchers.xPath;
 import static org.hamcrest.CoreMatchers.equalTo;
 import static org.hamcrest.MatcherAssert.assertThat;
 
+import java.io.InputStream;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.stream.StreamSource;
+
+import com.lyncode.xoai.util.XSLPipeline;
+import org.junit.Test;
+import org.parboiled.common.FileUtils;
+
 public class PipelineTest {
     private static TransformerFactory factory = TransformerFactory.newInstance();
 
     @Test
-    public void pipelineTest () throws Exception {
+    public void pipelineTest() throws Exception {
         InputStream input = PipelineTest.class.getClassLoader().getResourceAsStream("item.xml");
         InputStream xslt = PipelineTest.class.getClassLoader().getResourceAsStream("oai_dc.xsl");
         String output = FileUtils.readAllText(new XSLPipeline(input, true)
-                .apply(factory.newTransformer(new StreamSource(xslt)))
-                .getTransformed());
+                                                  .apply(factory.newTransformer(new StreamSource(xslt)))
+                                                  .getTransformed());
 
         assertThat(output, xPath("/oai_dc:dc/dc:title", equalTo("Teste")));
-        
+
         input.close();
         input = null;
         xslt.close();

dspace-oai/src/test/java/org/dspace/xoai/tests/stylesheets/AbstractXSLTest.java

@@ -7,25 +7,25 @@
  */
 package org.dspace.xoai.tests.stylesheets;
 
-import org.apache.commons.io.IOUtils;
-
-import javax.xml.transform.Transformer;
-import javax.xml.transform.TransformerFactory;
-import javax.xml.transform.stream.StreamResult;
-import javax.xml.transform.stream.StreamSource;
 import java.io.ByteArrayInputStream;
 import java.io.ByteArrayOutputStream;
 import java.io.File;
 import java.io.InputStream;
+import javax.xml.transform.Transformer;
+import javax.xml.transform.TransformerFactory;
+import javax.xml.transform.stream.StreamResult;
+import javax.xml.transform.stream.StreamSource;
+
+import org.apache.commons.io.IOUtils;
 
 public abstract class AbstractXSLTest {
     private static final TransformerFactory factory = TransformerFactory.newInstance();
 
-    protected TransformBuilder apply (String xslLocation) throws Exception {
+    protected TransformBuilder apply(String xslLocation) throws Exception {
         return new TransformBuilder(xslLocation);
     }
 
-    protected InputStream resource (String location) throws Exception {
+    protected InputStream resource(String location) throws Exception {
         return print(this.getClass().getClassLoader().getResourceAsStream(location));
     }
 
@@ -42,7 +42,8 @@ public abstract class AbstractXSLTest {
         private final Transformer transformer;
 
         public TransformBuilder(String xslLocation) throws Exception {
-            this.transformer = factory.newTransformer(new StreamSource(new File("../dspace/config/crosswalks/oai/metadataFormats", xslLocation)));
+            this.transformer = factory.newTransformer(
+                new StreamSource(new File("../dspace/config/crosswalks/oai/metadataFormats", xslLocation)));
         }
 
         public String to(InputStream input) throws Exception {

dspace-oai/src/test/java/org/dspace/xoai/tests/stylesheets/QDCXslTest.java

@@ -7,14 +7,14 @@
  */
 package org.dspace.xoai.tests.stylesheets;
 
-import org.dspace.xoai.tests.support.XmlMatcherBuilder;
-import org.junit.Test;
-
 import static org.dspace.xoai.tests.support.XmlMatcherBuilder.xml;
 import static org.hamcrest.MatcherAssert.assertThat;
 import static org.hamcrest.core.Is.is;
 import static org.hamcrest.core.IsEqual.equalTo;
 
+import org.dspace.xoai.tests.support.XmlMatcherBuilder;
+import org.junit.Test;
+
 public class QDCXslTest extends AbstractXSLTest {
 
     @Test
@@ -24,11 +24,11 @@ public class QDCXslTest extends AbstractXSLTest {
         assertThat(result, is(qdc().withXPath("//dc:title", equalTo("Test Webpage"))));
     }
 
-    private XmlMatcherBuilder qdc () {
+    private XmlMatcherBuilder qdc() {
         return xml()
-                .withNamespace("dqc", "http://dspace.org/qualifieddc/")
-                .withNamespace("dcterms", "http://purl.org/dc/terms/")
-                .withNamespace("dc", "http://purl.org/dc/elements/1.1/")
-                ;
+            .withNamespace("dqc", "http://dspace.org/qualifieddc/")
+            .withNamespace("dcterms", "http://purl.org/dc/terms/")
+            .withNamespace("dc", "http://purl.org/dc/elements/1.1/")
+            ;
     }
 }

dspace-oai/src/test/java/org/dspace/xoai/tests/support/MatcherBuilder.java

@@ -7,14 +7,14 @@
  */
 package org.dspace.xoai.tests.support;
 
+import java.util.ArrayList;
+import java.util.Collection;
+
 import org.hamcrest.BaseMatcher;
 import org.hamcrest.Description;
 import org.hamcrest.Matcher;
 import org.hamcrest.core.AllOf;
 
-import java.util.ArrayList;
-import java.util.Collection;
-
 public class MatcherBuilder<M extends MatcherBuilder, T> extends BaseMatcher<T> {
     private final Collection<Matcher<? super T>> matchers = new ArrayList<>();
 
@@ -32,7 +32,7 @@ public class MatcherBuilder<M extends MatcherBuilder, T> extends BaseMatcher<T>
         description.appendDescriptionOf(matcher());
     }
 
-    protected M with (Matcher<? super T> matcher) {
+    protected M with(Matcher<? super T> matcher) {
         matchers.add(matcher);
         return (M) this;
     }

dspace-oai/src/test/java/org/dspace/xoai/tests/support/XmlMatcherBuilder.java

@@ -7,18 +7,22 @@
  */
 package org.dspace.xoai.tests.support;
 
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.List;
+import java.util.Map;
+import javax.xml.namespace.NamespaceContext;
+
 import org.hamcrest.Description;
 import org.hamcrest.Matcher;
 import org.hamcrest.TypeSafeMatcher;
 import org.xmlmatchers.XmlMatchers;
 import org.xmlmatchers.transform.StringSource;
 
-import javax.xml.namespace.NamespaceContext;
-import java.util.*;
-
 
 public class XmlMatcherBuilder extends MatcherBuilder<XmlMatcherBuilder, String> {
-    public static XmlMatcherBuilder xml () {
+    public static XmlMatcherBuilder xml() {
         return new XmlMatcherBuilder();
     }
 
@@ -63,8 +67,8 @@ public class XmlMatcherBuilder extends MatcherBuilder<XmlMatcherBuilder, String>
             @Override
             protected boolean matchesSafely(String item) {
                 return XmlMatchers
-                        .hasXPath(xPath, namespaces, subMatcher)
-                        .matches(StringSource.toSource(item));
+                    .hasXPath(xPath, namespaces, subMatcher)
+                    .matches(StringSource.toSource(item));
             }
 
             @Override
@@ -74,7 +78,7 @@ public class XmlMatcherBuilder extends MatcherBuilder<XmlMatcherBuilder, String>
         });
     }
 
-    public XmlMatcherBuilder withNamespace (String prefix, String uri) {
+    public XmlMatcherBuilder withNamespace(String prefix, String uri) {
         namespaces.with(prefix, uri);
         return this;
     }
@@ -91,16 +95,20 @@ public class XmlMatcherBuilder extends MatcherBuilder<XmlMatcherBuilder, String>
         public String getPrefix(String namespaceURI) {
             Iterator<String> prefixes = getPrefixes(namespaceURI);
 
-            if (!prefixes.hasNext()) return null;
-            else return prefixes.next();
+            if (!prefixes.hasNext()) {
+                return null;
+            } else {
+                return prefixes.next();
+            }
         }
 
         @Override
         public Iterator getPrefixes(String namespaceURI) {
             List<String> list = new ArrayList<>();
             for (Map.Entry<String, String> stringStringEntry : namespace.entrySet()) {
-                if (stringStringEntry.getValue().equals(namespaceURI))
+                if (stringStringEntry.getValue().equals(namespaceURI)) {
                     list.add(stringStringEntry.getKey());
+                }
             }
 
             return list.iterator();

dspace-oai/src/test/java/org/dspace/xoai/tests/unit/services/impl/AbstractQueryResolverTest.java

@@ -7,6 +7,10 @@
  */
 package org.dspace.xoai.tests.unit.services.impl;
 
+import static org.mockito.Mockito.mock;
+
+import java.util.Date;
+
 import com.lyncode.builder.DateBuilder;
 import com.lyncode.xoai.dataprovider.services.impl.BaseDateProvider;
 import org.apache.solr.client.solrj.util.ClientUtils;
@@ -21,10 +25,6 @@ import org.junit.Before;
 import org.springframework.context.ApplicationContext;
 import org.springframework.context.annotation.AnnotationConfigApplicationContext;
 
-import java.util.Date;
-
-import static org.mockito.Mockito.mock;
-
 public abstract class AbstractQueryResolverTest {
     private final BaseDateProvider baseDateProvider = new BaseDateProvider();
     protected HandleResolver handleResolver = mock(HandleResolver.class);
@@ -32,10 +32,10 @@ public abstract class AbstractQueryResolverTest {
     private ApplicationContext applicationContext;
 
     @Before
-    public void setUp () {
+    public void setUp() {
         applicationContext = new AnnotationConfigApplicationContext(DSpaceBasicTestConfiguration.class);
     }
-    
+
     @After
     public void tearDown() {
         //Nullify all resoruces so that JUnit cleans them up
@@ -53,15 +53,17 @@ public abstract class AbstractQueryResolverTest {
         return applicationContext.getBean(DSpaceFilterResolver.class);
     }
 
-    protected StubbedFieldResolver theFieldResolver () {
+    protected StubbedFieldResolver theFieldResolver() {
         return (StubbedFieldResolver) applicationContext.getBean(FieldResolver.class);
     }
 
     protected String escapedFromDate(Date date) {
-        return ClientUtils.escapeQueryChars(baseDateProvider.format(new DateBuilder(date).setMinMilliseconds().build()).replace("Z", ".000Z"));
+        return ClientUtils.escapeQueryChars(
+            baseDateProvider.format(new DateBuilder(date).setMinMilliseconds().build()).replace("Z", ".000Z"));
     }
 
     protected String escapedUntilDate(Date date) {
-        return ClientUtils.escapeQueryChars(baseDateProvider.format(new DateBuilder(date).setMaxMilliseconds().build()).replace("Z", ".999Z"));
+        return ClientUtils.escapeQueryChars(
+            baseDateProvider.format(new DateBuilder(date).setMaxMilliseconds().build()).replace("Z", ".999Z"));
     }
 }

dspace-oai/src/test/java/org/dspace/xoai/tests/unit/services/impl/solr/DSpaceSolrQueryResolverTest.java

@@ -7,6 +7,13 @@
  */
 package org.dspace.xoai.tests.unit.services.impl.solr;
 
+import static org.hamcrest.CoreMatchers.is;
+import static org.junit.Assert.assertThat;
+
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.List;
+
 import com.lyncode.xoai.dataprovider.data.Filter;
 import com.lyncode.xoai.dataprovider.filter.Scope;
 import com.lyncode.xoai.dataprovider.filter.ScopedFilter;
@@ -26,23 +33,17 @@ import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.List;
-
-import static org.hamcrest.CoreMatchers.is;
-import static org.junit.Assert.assertThat;
-
 public class DSpaceSolrQueryResolverTest extends AbstractQueryResolverTest {
     private static final Date DATE = new Date();
     private static final String SET = "col_testSet";
     private static final String FIELD_1 = "dc.title";
     private static final String FIELD_2 = "dc.type";
 
-    private DSpaceSolrQueryResolver underTest = new DSpaceSolrQueryResolver();;
+    private DSpaceSolrQueryResolver underTest = new DSpaceSolrQueryResolver();
+    ;
 
     @Before
-    public void autowire () {
+    public void autowire() {
         autowire(underTest);
     }
 
@@ -50,7 +51,7 @@ public class DSpaceSolrQueryResolverTest extends AbstractQueryResolverTest {
     public void cleanup() {
         underTest = null;
     }
-    
+
     @Test
     public void fromFilterQuery() throws Exception {
         List<ScopedFilter> scopedFilters = new ArrayList<ScopedFilter>();
@@ -82,48 +83,49 @@ public class DSpaceSolrQueryResolverTest extends AbstractQueryResolverTest {
             }
         };
         scopedFilters.add(new ScopedFilter(new AndCondition(getFilterResolver(),
-                fromCondition, untilCondition), Scope.Query));
+                                                            fromCondition, untilCondition), Scope.Query));
 
         String result = underTest.buildQuery(scopedFilters);
 
-        assertThat(result, is("(((item.lastmodified:["+escapedFromDate(DATE)+" TO *]) AND (item.lastmodified:[* TO "+escapedUntilDate(DATE)+"])))"));
+        assertThat(result, is("(((item.lastmodified:[" + escapedFromDate(
+            DATE) + " TO *]) AND (item.lastmodified:[* TO " + escapedUntilDate(DATE) + "])))"));
     }
 
     @Test
     public void customConditionForMetadataExistsFilterWithOneSingleValue() throws Exception {
         List<ScopedFilter> scopedFilters = new ArrayList<ScopedFilter>();
         ParameterMap filterConfiguration = new ParameterMap().withValues(new StringValue()
-                .withValue(FIELD_1)
-                .withName("fields"));
+                                                                             .withValue(FIELD_1)
+                                                                             .withName("fields"));
 
         scopedFilters.add(new ScopedFilter(new CustomCondition(getFilterResolver(),
-                DSpaceMetadataExistsFilter.class,
-                filterConfiguration),
-                Scope.Query));
+                                                               DSpaceMetadataExistsFilter.class,
+                                                               filterConfiguration),
+                                           Scope.Query));
 
         String result = underTest.buildQuery(scopedFilters);
 
-        assertThat(result, is("(((metadata."+FIELD_1+":[* TO *])))"));
+        assertThat(result, is("(((metadata." + FIELD_1 + ":[* TO *])))"));
     }
 
     @Test
     public void customConditionForMetadataExistsFilterWithMultipleValues() throws Exception {
         List<ScopedFilter> scopedFilters = new ArrayList<ScopedFilter>();
         ParameterMap filterConfiguration = new ParameterMap().withValues(new ParameterList()
-                .withValues(
-                        new StringValue().withValue(FIELD_1),
-                        new StringValue().withValue(FIELD_2)
-                        )
-                .withName("fields"));
+                                                                             .withValues(
+                                                                                 new StringValue().withValue(FIELD_1),
+                                                                                 new StringValue().withValue(FIELD_2)
+                                                                             )
+                                                                             .withName("fields"));
 
         scopedFilters.add(new ScopedFilter(new CustomCondition(getFilterResolver(),
-                DSpaceMetadataExistsFilter.class,
-                filterConfiguration),
-                Scope.Query));
+                                                               DSpaceMetadataExistsFilter.class,
+                                                               filterConfiguration),
+                                           Scope.Query));
 
         String result = underTest.buildQuery(scopedFilters);
 
-        assertThat(result, is("(((metadata."+FIELD_1+":[* TO *] OR metadata."+FIELD_2+":[* TO *])))"));
+        assertThat(result, is("(((metadata." + FIELD_1 + ":[* TO *] OR metadata." + FIELD_2 + ":[* TO *])))"));
     }
 
     @Test
@@ -159,7 +161,8 @@ public class DSpaceSolrQueryResolverTest extends AbstractQueryResolverTest {
 
         String result = underTest.buildQuery(scopedFilters);
 
-        assertThat(result, is("((item.lastmodified:[" + escapedFromDate(DATE) + " TO *])) AND ((item.collections:"+SET+"))"));
+        assertThat(result, is("((item.lastmodified:[" + escapedFromDate(
+            DATE) + " TO *])) AND ((item.collections:" + SET + "))"));
     }
 
 }

dspace-oai/src/test/resources/xoai-test1.xml

@@ -8,7 +8,8 @@
     http://www.dspace.org/license/
 
 -->
-<metadata xmlns="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.lyncode.com/xoai http://www.lyncode.com/xsd/xoai.xsd">
+<metadata xmlns="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+          xsi:schemaLocation="http://www.lyncode.com/xoai http://www.lyncode.com/xsd/xoai.xsd">
     <element name="dc">
         <element name="creator">
             <element name="en_US">