mass commit of broken code for identifiers. Fixes coming up over the next couple of weeks.

git-svn-id: http://scm.dspace.org/svn/repo/trunk@2583 9c30dcfa-912a-0410-8fc2-9e0234be79fd

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

@@ -39,15 +39,6 @@
  */
 package org.dspace.content;
 
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.ArrayList;
-import java.util.Date;
-import java.util.Iterator;
-import java.util.List;
-import java.util.StringTokenizer;
-
 import org.apache.log4j.Logger;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.authorize.AuthorizeManager;
@@ -65,9 +56,8 @@ import org.dspace.content.dao.CommunityDAO;
 import org.dspace.content.dao.CommunityDAOFactory;
 import org.dspace.content.dao.ItemDAO;
 import org.dspace.content.dao.ItemDAOFactory;
-import org.dspace.uri.ExternalIdentifier;
-import org.dspace.uri.ObjectIdentifier;
 import org.dspace.core.ArchiveManager;
+import org.dspace.core.ConfigurationManager;
 import org.dspace.core.Constants;
 import org.dspace.core.Context;
 import org.dspace.core.LogManager;
@@ -76,6 +66,20 @@ import org.dspace.eperson.Group;
 import org.dspace.eperson.dao.EPersonDAO;
 import org.dspace.eperson.dao.EPersonDAOFactory;
 import org.dspace.event.Event;
+import org.dspace.uri.ExternalIdentifier;
+import org.dspace.uri.ExternalIdentifierMint;
+import org.dspace.uri.IdentifierFactory;
+import org.dspace.uri.ObjectIdentifier;
+import org.dspace.uri.UnsupportedIdentifierException;
+
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.ArrayList;
+import java.util.Date;
+import java.util.Iterator;
+import java.util.List;
+import java.util.StringTokenizer;
 
 /**
  * Class representing an item in DSpace. Note that everything is held in memory
@@ -226,13 +230,86 @@ public class Item extends DSpaceObject
         return metadata;
     }
 
+    ////////////////////////////////////////////////////////////////////////
+    // Identifier Methods
+    ////////////////////////////////////////////////////////////////////////
+
     public void setIdentifier(ObjectIdentifier oid)
     {
+        // enxsure the identifier is localised to the item
         oid.setResourceTypeID(this.getType());
         oid.setResourceID(this.getID());
+
+        // FIXME: this can clearly result in duplicate fields, and once the principal is sound then we
+        // need to come back and tidy this up
+        
+        // store the canonical form of the identifier
+        DCValue dcv = ConfigurationManager.getMetadataProperty("identifier.metadata.canonical-field.internal");
+        if (dcv != null)
+        {
+            this.addMetadata(dcv.schema, dcv.element, dcv.qualifier, null, oid.getCanonicalForm());
+        }
+
+        // now, should we store the full form
+        if (ConfigurationManager.getBooleanProperty("identifier.metadata.store-url.internal"))
+        {
+            DCValue dc = ConfigurationManager.getMetadataProperty("identifier.metadata.url-field.internal");
+            if (dc != null)
+            {
+                this.addMetadata(dc.schema, dc.element, dc.qualifier, null, IdentifierFactory.getURL(oid).toString());
+            }
+        }
+
+        // now let the superclass do its thing
         super.setIdentifier(oid);
     }
 
+    public void addExternalIdentifier(ExternalIdentifier identifier)
+            throws UnsupportedIdentifierException
+    {
+        // FIXME: this can clearly result in duplicate fields, and once the principal is sound then we
+        // need to come back and tidy this up
+        
+        // store the canonical form of the identifier
+        DCValue dcv = ExternalIdentifierMint.getCanonicalField(identifier.getType());
+        if (dcv != null)
+        {
+            this.addMetadata(dcv.schema, dcv.element, dcv.qualifier, null, identifier.getCanonicalForm());
+        }
+
+        // now, store the full form
+        DCValue dc = ExternalIdentifierMint.getURLField(identifier.getType());
+        if (dc != null)
+        {
+            this.addMetadata(dc.schema, dc.element, dc.qualifier, null, IdentifierFactory.getURL(identifier).toString());
+        }
+
+        // now let the superclass do its thing
+        super.addExternalIdentifier(identifier);
+    }
+
+    public void setExternalIdentifiers(List<ExternalIdentifier> identifiers)
+            throws UnsupportedIdentifierException
+    {
+        for (ExternalIdentifier eid : identifiers)
+        {
+            // store the canonical form of the identifier
+            DCValue dcv = ExternalIdentifierMint.getCanonicalField(eid.getType());
+            this.addMetadata(dcv.schema, dcv.element, dcv.qualifier, null, eid.getCanonicalForm());
+
+            // now, store the full form
+            DCValue dc = ExternalIdentifierMint.getURLField(eid.getType());
+            this.addMetadata(dc.schema, dc.element, dc.qualifier, null, IdentifierFactory.getURL(eid).toString());
+        }
+
+        // now let the superclass do its thing
+        super.setExternalIdentifiers(identifiers);
+    }
+
+    ///////////////////////////////////////////////////////////////////////////
+    // End of Identifier Methods
+    ///////////////////////////////////////////////////////////////////////////
+
     public void setMetadata(List<DCValue> metadata)
     {
         this.metadata = metadata;

dspace-api/src/main/java/org/dspace/content/dao/ItemDAOCore.java

@@ -264,8 +264,7 @@ public class ItemDAOCore extends ItemDAO
                 schema = msDAO.retrieve(MetadataSchema.DC_SCHEMA_ID);
             }
 
-            field = mfDAO.retrieve(
-                    schema.getID(), memValue.element, memValue.qualifier);
+            field = mfDAO.retrieve(schema.getID(), memValue.element, memValue.qualifier);
 
             // Work out the place number for ordering
             int current = 0;

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

@@ -496,8 +496,6 @@ public abstract class ArchiveManager
      */
     private static void printExternalIdentifiers(Item item)
     {
-    	System.out.println("one pi: " + item.getExternalIdentifier().getCanonicalForm());
-        System.out.println(item.getExternalIdentifiers().toString());
         for (ExternalIdentifier id : item.getExternalIdentifiers())
         {
             System.out.println(id.getCanonicalForm());

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

@@ -39,13 +39,17 @@
  */
 package org.dspace.core;
 
+import org.apache.log4j.Category;
+import org.apache.log4j.Logger;
+import org.apache.log4j.helpers.OptionConverter;
+import org.dspace.content.DCValue;
+
 import java.io.BufferedReader;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileOutputStream;
 import java.io.FileReader;
 import java.io.IOException;
-import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.OutputStreamWriter;
 import java.io.PrintWriter;
@@ -54,13 +58,6 @@ import java.net.URL;
 import java.util.Enumeration;
 import java.util.Properties;
 
-import javax.servlet.ServletContextEvent;
-import javax.servlet.ServletContextListener;
-
-import org.apache.log4j.Category;
-import org.apache.log4j.Logger;
-import org.apache.log4j.helpers.OptionConverter;
-
 /**
  * Class for reading the DSpace system configuration. The main configuration is
  * read in as properties from a standard properties file. Email templates and
@@ -250,6 +247,41 @@ public class ConfigurationManager
         }
     }
 
+    public static DCValue getMetadataProperty(String property)
+    {
+        if (properties == null)
+        {
+            loadConfig(null);
+        }
+
+        String stringValue = properties.getProperty(property);
+
+        if (stringValue != null)
+        {
+        	stringValue = stringValue.trim();
+            String[] bits = stringValue.split("\\.");
+            DCValue dcv = new DCValue();
+            for (int i = 0; i < 3 && i < bits.length; i++)
+            {
+                switch (i)
+                {
+                    case 0:
+                        dcv.schema = bits[i];
+                        break;
+                    case 1:
+                        dcv.element = bits[i];
+                        break;
+                    case 2:
+                        dcv.qualifier = bits[i];
+                        break;
+                }
+            }
+            return dcv;
+        }
+        
+        return null;
+    }
+
     /**
      * Returns an enumeration of all the keys in the DSpace configuration
      * 

dspace-api/src/main/java/org/dspace/uri/ExternalIdentifier.java

@@ -141,37 +141,6 @@ public abstract class ExternalIdentifier implements ResolvableIdentifier
         return type.getNamespace() + "/" + this.value;        
     }
 
-    @Deprecated
-    public URL getURL()
-    {
-        /*
-        try
-        {
-            String base = ConfigurationManager.getProperty("dspace.url");
-            String urlForm = this.getURLForm();
-
-            if (base == null || "".equals(base))
-            {
-                throw new RuntimeException("No configuration, or configuration invalid for dspace.url");
-            }
-
-            if (urlForm == null)
-            {
-                throw new RuntimeException("Unable to assign URL: no ExternalIdentifier available");
-            }
-
-            String url = base + "/resource/" + urlForm;
-
-            return new URL(url);
-        }
-        catch (MalformedURLException e)
-        {
-            log.error("caught exception: ", e);
-            throw new RuntimeException(e);
-        }*/
-        return IdentifierFactory.getURL(this);
-    }
-
     public URI getURI()
     {
         try

dspace-api/src/main/java/org/dspace/uri/ExternalIdentifierMint.java

@@ -35,7 +35,9 @@
  */
 package org.dspace.uri;
 
+import org.dspace.content.DCValue;
 import org.dspace.content.DSpaceObject;
+import org.dspace.core.ConfigurationManager;
 import org.dspace.core.Context;
 import org.dspace.core.PluginManager;
 import org.dspace.uri.dao.ExternalIdentifierDAO;
@@ -132,4 +134,18 @@ public class ExternalIdentifierMint
         }
         return null;
     }
+
+    public static DCValue getCanonicalField(ExternalIdentifierType type)
+    {
+        String cfg = "identifier.metadata.canonical-field." + type.getNamespace();
+        DCValue dcv = ConfigurationManager.getMetadataProperty(cfg);
+        return dcv;
+    }
+
+    public static DCValue getURLField(ExternalIdentifierType type)
+    {
+        String cfg = "identifier.metadata.url-field." + type.getNamespace();
+        DCValue dcv = ConfigurationManager.getMetadataProperty(cfg);
+        return dcv;
+    }
 }

dspace-api/src/main/java/org/dspace/uri/dao/ExternalIdentifierStorageException.java

@@ -0,0 +1,24 @@
+package org.dspace.uri.dao;
+
+public class ExternalIdentifierStorageException extends Exception
+{
+    public ExternalIdentifierStorageException()
+    {
+        super();
+    }
+
+    public ExternalIdentifierStorageException(String message)
+    {
+        super(message);
+    }
+
+    public ExternalIdentifierStorageException(String message, Throwable cause)
+    {
+        super(message, cause);
+    }
+
+    public ExternalIdentifierStorageException(Throwable cause)
+    {
+        super(cause);
+    }
+}

dspace-api/src/main/java/org/dspace/workflow/WorkflowManager.java

@@ -638,6 +638,7 @@ public class WorkflowManager
             // Here, we try to get an external identifier for the item to send
             // in the notification email. If no external identifier exists, we
             // just send the "local" item URL.
+            /*
             ExternalIdentifier identifier = i.getExternalIdentifier();
             String uri = "";
             if (identifier != null)
@@ -647,7 +648,8 @@ public class WorkflowManager
             else
             {
                 uri = IdentifierFactory.getURL(i).toString();
-            }
+            }*/
+            String uri = IdentifierFactory.getURL(i).toString();
 
             // Get title
             DCValue[] titles = i.getDC("title", null, Item.ANY);

dspace-lni/dspace-lni-client/src/main/resources/dspace-lni.wsdl

@@ -15,23 +15,35 @@ Built on Oct 05, 2005 (05:23:37 EDT)-->
   </schema>
  </wsdl:types>
 
-   <wsdl:message name="propfindRequest">
+   <wsdl:message name="propfindResponse">
+
+      <wsdl:part name="propfindReturn" type="xsd:string"/>
+
+   </wsdl:message>
+
+   <wsdl:message name="LNIRemoteException">
+
+      <wsdl:part name="fault" type="impl:LNIRemoteException"/>
+
+   </wsdl:message>
+
+   <wsdl:message name="proppatchRequest">
 
       <wsdl:part name="uri" type="xsd:string"/>
 
       <wsdl:part name="doc" type="xsd:string"/>
 
-      <wsdl:part name="depth" type="xsd:int"/>
+   </wsdl:message>
 
-      <wsdl:part name="types" type="xsd:string"/>
+   <wsdl:message name="copyResponse">
+
+      <wsdl:part name="copyReturn" type="xsd:int"/>
 
    </wsdl:message>
 
-   <wsdl:message name="lookupRequest">
+   <wsdl:message name="proppatchResponse">
 
-      <wsdl:part name="handle" type="xsd:string"/>
-
-      <wsdl:part name="bitstreamPid" type="xsd:string"/>
+      <wsdl:part name="proppatchReturn" type="xsd:string"/>
 
    </wsdl:message>
 
@@ -41,12 +53,6 @@ Built on Oct 05, 2005 (05:23:37 EDT)-->
 
    </wsdl:message>
 
-   <wsdl:message name="propfindResponse">
-
-      <wsdl:part name="propfindReturn" type="xsd:string"/>
-
-   </wsdl:message>
-
    <wsdl:message name="copyRequest">
 
       <wsdl:part name="source" type="xsd:string"/>
@@ -61,30 +67,24 @@ Built on Oct 05, 2005 (05:23:37 EDT)-->
 
    </wsdl:message>
 
-   <wsdl:message name="LNIRemoteException">
+   <wsdl:message name="lookupRequest">
 
-      <wsdl:part name="fault" type="impl:LNIRemoteException"/>
+      <wsdl:part name="handle" type="xsd:string"/>
+
+      <wsdl:part name="bitstreamPid" type="xsd:string"/>
 
    </wsdl:message>
 
-   <wsdl:message name="copyResponse">
-
-      <wsdl:part name="copyReturn" type="xsd:int"/>
-
-   </wsdl:message>
-
-   <wsdl:message name="proppatchResponse">
-
-      <wsdl:part name="proppatchReturn" type="xsd:string"/>
-
-   </wsdl:message>
-
-   <wsdl:message name="proppatchRequest">
+   <wsdl:message name="propfindRequest">
 
       <wsdl:part name="uri" type="xsd:string"/>
 
       <wsdl:part name="doc" type="xsd:string"/>
 
+      <wsdl:part name="depth" type="xsd:int"/>
+
+      <wsdl:part name="types" type="xsd:string"/>
+
    </wsdl:message>
 
    <wsdl:portType name="LNISoapServlet">

dspace-lni/dspace-lni-core/src/main/java/org/dspace/app/dav/DAVCollection.java

@@ -67,6 +67,7 @@ import org.dspace.core.Context;
 import org.dspace.core.PluginManager;
 import org.dspace.workflow.WorkflowItem;
 import org.dspace.workflow.WorkflowManager;
+import org.dspace.uri.IdentifierFactory;
 import org.jdom.Element;
 
 
@@ -508,7 +509,7 @@ class DAVCollection extends DAVDSpaceObject
                 Item ni = wfi.getItem();
 
                 // FIXME: I'm not sure this is what we want
-                String handle = ni.getExternalIdentifier().getCanonicalForm();
+                String handle = IdentifierFactory.getCanonicalForm(ni);
 //                String handle = HandleManager.findHandle(this.context, ni);
 
                 String end = (handle != null) ? DAVDSpaceObject

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/administrative/FlowAuthorizationUtils.java

@@ -40,9 +40,6 @@
 
 package org.dspace.app.xmlui.aspect.administrative;
 
-import java.sql.SQLException;
-import java.util.List;
-
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.authorize.AuthorizeManager;
@@ -54,12 +51,14 @@ import org.dspace.content.Collection;
 import org.dspace.content.Community;
 import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
-import org.dspace.uri.ExternalIdentifier;
-import org.dspace.uri.dao.ExternalIdentifierDAO;
-import org.dspace.uri.dao.ExternalIdentifierDAOFactory;
 import org.dspace.core.Constants;
 import org.dspace.core.Context;
 import org.dspace.eperson.Group;
+import org.dspace.uri.IdentifierFactory;
+import org.dspace.uri.ResolvableIdentifier;
+
+import java.sql.SQLException;
+import java.util.List;
 
 
 
@@ -93,12 +92,15 @@ public class FlowAuthorizationUtils {
 		//Check whether it's a handle or internal id (by check ing if it has a slash in the string)
 		if (identifier.contains("/")) {
 //			DSpaceObject dso = HandleManager.resolveToObject(context, identifier);
+            /*
             ExternalIdentifierDAO identifierDAO =
                     ExternalIdentifierDAOFactory.getInstance(context);
             ExternalIdentifier eid = identifierDAO.retrieve(identifier);
-            DSpaceObject dso = eid.getObjectIdentifier().getObject(context);
+            DSpaceObject dso = eid.getObjectIdentifier().getObject(context);*/
+            ResolvableIdentifier ri = IdentifierFactory.resolve(context, identifier);
+            DSpaceObject dso = ri.getObject(context);
 			
-			if (dso != null && dso.getType() == Constants.ITEM) { 
+            if (dso != null && dso.getType() == Constants.ITEM) {
 				result.setParameter("itemID", dso.getID());
 				result.setParameter("type", Constants.ITEM);
 				result.setContinue(true);

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/administrative/FlowItemUtils.java

@@ -58,7 +58,8 @@ import org.dspace.content.FormatIdentifier;
 import org.dspace.content.Item;
 import org.dspace.content.MetadataField;
 import org.dspace.content.MetadataSchema;
-import org.dspace.uri.ExternalIdentifier;
+import org.dspace.uri.ResolvableIdentifier;
+import org.dspace.uri.IdentifierFactory;
 import org.dspace.uri.dao.ExternalIdentifierDAO;
 import org.dspace.uri.dao.ExternalIdentifierDAOFactory;
 import org.dspace.core.Constants;
@@ -109,10 +110,13 @@ public class FlowItemUtils
 		if (identifier.contains("/")) 
 		{
 //			DSpaceObject dso = HandleManager.resolveToObject(context, identifier);
+            /*
             ExternalIdentifier eid = identifierDAO.retrieve(identifier);
-            DSpaceObject dso = eid.getObjectIdentifier().getObject(context);
+            DSpaceObject dso = eid.getObjectIdentifier().getObject(context);*/
+            ResolvableIdentifier ri = IdentifierFactory.resolve(context, identifier);
+            DSpaceObject dso = ri.getObject(context);
 	
-			if (dso != null && dso.getType() == Constants.ITEM) 
+            if (dso != null && dso.getType() == Constants.ITEM)
 			{ 
 				result.setParameter("itemID", dso.getID());
 				result.setParameter("type", Constants.ITEM);

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/administrative/WithdrawnItems.java

@@ -40,14 +40,6 @@
 
 package org.dspace.app.xmlui.aspect.administrative;
 
-import java.io.IOException;
-import java.io.Serializable;
-import java.sql.SQLException;
-import java.util.HashMap;
-import java.util.Locale;
-import java.util.Map;
-import java.util.Set;
-
 import org.apache.cocoon.caching.CacheableProcessingComponent;
 import org.apache.cocoon.environment.ObjectModelHelper;
 import org.apache.cocoon.environment.Request;
@@ -77,8 +69,6 @@ import org.dspace.browse.BrowseException;
 import org.dspace.browse.BrowseIndex;
 import org.dspace.browse.BrowseInfo;
 import org.dspace.browse.BrowserScope;
-import org.dspace.sort.SortOption;
-import org.dspace.sort.SortException;
 import org.dspace.content.Collection;
 import org.dspace.content.Community;
 import org.dspace.content.DCDate;
@@ -86,8 +76,19 @@ import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
 import org.dspace.core.ConfigurationManager;
 import org.dspace.core.Context;
+import org.dspace.sort.SortException;
+import org.dspace.sort.SortOption;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.io.Serializable;
+import java.sql.SQLException;
+import java.util.HashMap;
+import java.util.Locale;
+import java.util.Map;
+import java.util.Set;
+
 /**
  * Implements all the browse functionality (browse by title, subject, authors,
  * etc.) The types of browse available are configurable by the implementor. See
@@ -171,7 +172,7 @@ public class WithdrawnItems extends AbstractDSpaceTransformer implements
             {
                 DSpaceObject dso = HandleUtil.obtainHandle(objectModel);
                 if (dso != null)
-                    key += "-" + dso.getExternalIdentifier().getCanonicalForm();
+                    key += "-" + IdentifierFactory.getCanonicalForm(dso);
 
                 return HashUtil.hash(key);
             }

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/administrative/authorization/EditContainerPolicies.java

@@ -39,9 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.administrative.authorization;
 
-import java.sql.SQLException;
-import java.util.ArrayList;
-
 import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
@@ -60,6 +57,10 @@ import org.dspace.content.Collection;
 import org.dspace.content.Community;
 import org.dspace.core.Constants;
 import org.dspace.eperson.Group;
+import org.dspace.uri.IdentifierFactory;
+
+import java.sql.SQLException;
+import java.util.ArrayList;
 
 /**
  * @author Alexey Maslov
@@ -125,13 +126,13 @@ public class EditContainerPolicies extends AbstractDSpaceTransformer
 		if (containerType == Constants.COLLECTION)
 	    {
 			Collection col = Collection.find(context, containerID); 
-			main.setHead(T_main_head_collection.parameterize(col.getMetadata("name"),col.getExternalIdentifier().getCanonicalForm(),col.getID()));
+			main.setHead(T_main_head_collection.parameterize(col.getMetadata("name"), IdentifierFactory.getCanonicalForm(col),col.getID()));
 			policies = (ArrayList<ResourcePolicy>)AuthorizeManager.getPolicies(context, col);
 	    }
 		else 
 		{
 			Community com = Community.find(context, containerID);
-			main.setHead(T_main_head_community.parameterize(com.getMetadata("name"),com.getExternalIdentifier().getCanonicalForm(),com.getID()));
+			main.setHead(T_main_head_community.parameterize(com.getMetadata("name"),IdentifierFactory.getCanonicalForm(com),com.getID()));
 			policies = (ArrayList<ResourcePolicy>)AuthorizeManager.getPolicies(context, com);
 		}
 		

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/administrative/authorization/EditItemPolicies.java

@@ -39,9 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.administrative.authorization;
 
-import java.sql.SQLException;
-import java.util.ArrayList;
-
 import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
@@ -61,6 +58,10 @@ import org.dspace.content.Bundle;
 import org.dspace.content.Item;
 import org.dspace.core.Constants;
 import org.dspace.eperson.Group;
+import org.dspace.uri.IdentifierFactory;
+
+import java.sql.SQLException;
+import java.util.ArrayList;
 
 /**
  * @author Alexey Maslov
@@ -146,7 +147,7 @@ public class EditItemPolicies extends AbstractDSpaceTransformer
 
 		// DIVISION: main
 		Division main = body.addInteractiveDivision("edit-item-policies",contextPath+"/admin/authorize",Division.METHOD_POST,"primary administrative authorization");
-		main.setHead(T_main_head.parameterize(item.getExternalIdentifier().getCanonicalForm(),item.getID()));
+		main.setHead(T_main_head.parameterize(IdentifierFactory.getCanonicalForm(item),item.getID()));
 		main.addPara().addHighlight("italic").addContent(T_main_para1);
 		main.addPara().addHighlight("italic").addContent(T_main_para2);
 		

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/administrative/community/EditCommunityMetadataForm.java

@@ -39,8 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.administrative.community;
 
-import java.sql.SQLException;
-
 import org.dspace.app.xmlui.aspect.administrative.FlowContainerUtils;
 import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
 import org.dspace.app.xmlui.wing.Message;
@@ -56,6 +54,9 @@ import org.dspace.app.xmlui.wing.element.TextArea;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.authorize.AuthorizeManager;
 import org.dspace.content.Community;
+import org.dspace.uri.IdentifierFactory;
+
+import java.sql.SQLException;
 
 /**
  * Presents the user (in this case an administrator over the community) with the
@@ -106,7 +107,7 @@ public class EditCommunityMetadataForm extends AbstractDSpaceTransformer
 	    
 		// DIVISION: main
 	    Division main = body.addInteractiveDivision("community-metadata-edit",contextPath+"/admin/community",Division.METHOD_MULTIPART,"primary administrative community");
-	    main.setHead(T_main_head.parameterize(thisCommunity.getExternalIdentifier().getCanonicalForm()));
+	    main.setHead(T_main_head.parameterize(IdentifierFactory.getCanonicalForm(thisCommunity)));
 	    
 	    if (AuthorizeManager.isAdmin(context))
 	    {

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/administrative/group/EditGroupForm.java

@@ -39,12 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.administrative.group;
 
-import java.sql.SQLException;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.LinkedList;
-import java.util.Queue;
-
 import org.dspace.app.xmlui.aspect.administrative.FlowGroupUtils;
 import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
 import org.dspace.app.xmlui.wing.Message;
@@ -62,6 +56,13 @@ import org.dspace.authorize.AuthorizeManager;
 import org.dspace.content.Collection;
 import org.dspace.eperson.EPerson;
 import org.dspace.eperson.Group;
+import org.dspace.uri.IdentifierFactory;
+
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.LinkedList;
+import java.util.Queue;
 
 /**
  * Present the user with the group's current state. The user may select to 
@@ -288,9 +289,8 @@ public class EditGroupForm extends AbstractDSpaceTransformer
 	    {
 	    	Para para = main.addPara();
 	    	para.addContent(T_collection_para);
-	    	para.addXref(contextPath+"/handle/"+collection.getExternalIdentifier().getCanonicalForm(), collection.getMetadata("name"));
+	    	para.addXref(IdentifierFactory.getURL(collection).toString(), collection.getMetadata("name"));
 	    }
-	   
 
 	    // DIVISION: group-actions
 	    Division actions = main.addDivision("group-edit-actions");
@@ -498,7 +498,7 @@ public class EditGroupForm extends AbstractDSpaceTransformer
 	        		
 	        		Highlight highlight = cell.addHighlight("fade");
 	        		highlight.addContent("[");
-	        		highlight.addXref(contextPath+"/handle/"+collection.getExternalIdentifier().getCanonicalForm(), T_groups_collection_link);
+	        		highlight.addXref(IdentifierFactory.getURL(collection).toString(), T_groups_collection_link);
 	        		highlight.addContent("]");
         		}
         	}

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/administrative/group/ManageGroupsMain.java

@@ -39,8 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.administrative.group;
 
-import java.sql.SQLException;
-
 import org.dspace.app.xmlui.aspect.administrative.FlowGroupUtils;
 import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
 import org.dspace.app.xmlui.wing.Message;
@@ -57,6 +55,9 @@ import org.dspace.app.xmlui.wing.element.Table;
 import org.dspace.app.xmlui.wing.element.Text;
 import org.dspace.content.Collection;
 import org.dspace.eperson.Group;
+import org.dspace.uri.IdentifierFactory;
+
+import java.sql.SQLException;
 
 /**
  * Manage groups page is the entry point for group management. From here the user
@@ -265,7 +266,7 @@ public class ManageGroupsMain extends AbstractDSpaceTransformer
 	        		Highlight highlight = cell.addHighlight("fade");
 	        		
 	        		highlight.addContent("[");
-	        		highlight.addXref(contextPath+"/handle/"+collection.getExternalIdentifier().getCanonicalForm(), T_collection_link);
+	        		highlight.addXref(IdentifierFactory.getURL(collection).toString(), T_collection_link);
 	        		highlight.addContent("]");
         		}
         	}

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/administrative/item/ConfirmItemForm.java

@@ -39,10 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.administrative.item;
 
-import java.sql.SQLException;
-import java.util.Arrays;
-import java.util.Comparator;
-
 import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
@@ -55,6 +51,11 @@ import org.dspace.app.xmlui.wing.element.Row;
 import org.dspace.app.xmlui.wing.element.Table;
 import org.dspace.content.DCValue;
 import org.dspace.content.Item;
+import org.dspace.uri.IdentifierFactory;
+
+import java.sql.SQLException;
+import java.util.Arrays;
+import java.util.Comparator;
 
 
 /**
@@ -114,7 +115,7 @@ public class ConfirmItemForm extends AbstractDSpaceTransformer {
 
 		// DIVISION: Main
 		Division main = body.addInteractiveDivision("confirm-item", contextPath+"/admin/item", Division.METHOD_POST,"primary administrative item");
-		main.setHead(T_head1.parameterize(item.getExternalIdentifier().getCanonicalForm()));
+		main.setHead(T_head1.parameterize(IdentifierFactory.getCanonicalForm(item)));
 
 		// PARA: descriptive instructions
 		if("delete".equals(confirm))

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/administrative/item/EditItemStatusForm.java

@@ -39,8 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.administrative.item;
 
-import java.sql.SQLException;
-
 import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
@@ -53,6 +51,9 @@ import org.dspace.authorize.AuthorizeManager;
 import org.dspace.content.Collection;
 import org.dspace.content.Item;
 import org.dspace.core.ConfigurationManager;
+import org.dspace.uri.IdentifierFactory;
+
+import java.sql.SQLException;
 
 /**
  * Display basic meta-meta information about the item and allow the user to change 
@@ -146,7 +147,7 @@ public class EditItemStatusForm extends AbstractDSpaceTransformer {
 		
 		itemInfo.addLabel(T_label_handle);
 //      itemInfo.addItem(item.getHandle()==null?"None":item.getHandle());
-        itemInfo.addItem(item.getExternalIdentifier()==null?"None":item.getExternalIdentifier().getCanonicalForm());
+        itemInfo.addItem(IdentifierFactory.getCanonicalForm(item));
 
 		itemInfo.addLabel(T_label_modified);
 		itemInfo.addItem(item.getLastModified().toString());
@@ -161,6 +162,7 @@ public class EditItemStatusForm extends AbstractDSpaceTransformer {
 		
 		itemInfo.addLabel(T_label_page);
 //		if(item.getHandle()==null){
+        /*
         if(item.getExternalIdentifier()==null){
 			itemInfo.addItem(T_na);
 		}
@@ -168,8 +170,11 @@ public class EditItemStatusForm extends AbstractDSpaceTransformer {
 //            itemInfo.addItem().addXref(ConfigurationManager.getProperty("dspace.url") + "/handle/" + item.getHandle(),ConfigurationManager.getProperty("dspace.url") + "/handle/" + item.getHandle());
             itemInfo.addItem().addXref(ConfigurationManager.getProperty("dspace.url") + "/handle/" + item.getExternalIdentifier().getCanonicalForm(),ConfigurationManager.getProperty("dspace.url") + "/handle/" + item.getExternalIdentifier().getCanonicalForm());
         }
-		
-		itemInfo.addLabel(T_label_auth);
+		*/
+        String url = IdentifierFactory.getURL(item).toString();
+        itemInfo.addItem().addXref(url, url);
+
+        itemInfo.addLabel(T_label_auth);
 		addAdministratorOnlyButton(itemInfo.addItem(), "submit_authorization", T_submit_authorizations);
 	
 		if(!item.isWithdrawn())

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/administrative/mapper/BrowseItemForm.java

@@ -59,6 +59,7 @@ import org.dspace.content.DCValue;
 import org.dspace.content.Item;
 import org.dspace.content.ItemIterator;
 import org.dspace.core.Constants;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
 /**
@@ -147,7 +148,7 @@ public class BrowseItemForm extends AbstractDSpaceTransformer {
 			if (dcTitles != null && dcTitles.length >= 1)
 				title = dcTitles[0].value;
 
-			String url = contextPath+"/handle/"+item.getExternalIdentifier().getCanonicalForm();
+			String url = IdentifierFactory.getURL(item).toString();
 			
 			Row row = table.addRow();
 			

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/administrative/mapper/SearchItemForm.java

@@ -57,7 +57,8 @@ import org.dspace.content.Collection;
 import org.dspace.content.DCValue;
 import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
-import org.dspace.uri.ExternalIdentifier;
+import org.dspace.uri.ResolvableIdentifier;
+import org.dspace.uri.IdentifierFactory;
 import org.dspace.uri.dao.ExternalIdentifierDAO;
 import org.dspace.uri.dao.ExternalIdentifierDAOFactory;
 import org.dspace.search.DSQuery;
@@ -140,7 +141,7 @@ public class SearchItemForm extends AbstractDSpaceTransformer {
 			if (dcTitles != null && dcTitles.length >= 1)
 				title = dcTitles[0].value;
 
-			String url = contextPath+"/handle/"+item.getExternalIdentifier().getCanonicalForm();
+			String url = IdentifierFactory.getURL(item).toString();
 			
 			Row row = table.addRow();
 			
@@ -191,9 +192,12 @@ public class SearchItemForm extends AbstractDSpaceTransformer {
         for (String uri : uris)
         {
 //            DSpaceObject resultDSO = HandleManager.resolveToObject(context, handle);
+            /*
             ExternalIdentifier identifier = identifierDAO.retrieve(uri);
             DSpaceObject resultDSO =
-                identifier.getObjectIdentifier().getObject(context);
+                identifier.getObjectIdentifier().getObject(context);*/
+            ResolvableIdentifier ri = IdentifierFactory.resolve(context, uri);
+            DSpaceObject resultDSO = ri.getObject(context);
 
             if (resultDSO instanceof Item)
             {

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/artifactbrowser/AbstractSearch.java

@@ -44,7 +44,6 @@ import java.io.Serializable;
 import java.sql.SQLException;
 import java.util.HashMap;
 import java.util.Map;
-import java.util.Set;
 
 import org.apache.cocoon.environment.ObjectModelHelper;
 import org.apache.cocoon.environment.Request;
@@ -70,7 +69,8 @@ import org.dspace.content.Collection;
 import org.dspace.content.Community;
 import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
-import org.dspace.uri.ExternalIdentifier;
+import org.dspace.uri.ResolvableIdentifier;
+import org.dspace.uri.IdentifierFactory;
 import org.dspace.uri.dao.ExternalIdentifierDAO;
 import org.dspace.uri.dao.ExternalIdentifierDAOFactory;
 import org.dspace.core.Context;
@@ -155,7 +155,7 @@ public abstract class AbstractSearch extends AbstractDSpaceTransformer
             // What scope the search is at
             DSpaceObject scope = getScope();
             if (scope != null)
-                key += "-" + scope.getExternalIdentifier().getCanonicalForm();
+                key += "-" + IdentifierFactory.getCanonicalForm(scope);
             
             // The actualy search query.
             key += "-" + getQuery();
@@ -200,10 +200,13 @@ public abstract class AbstractSearch extends AbstractDSpaceTransformer
 	            {
 //	                DSpaceObject resultDSO = HandleManager.resolveToObject(
 //	                        context, handle);
+                    /*
                     ExternalIdentifier identifier = dao.retrieve(uri);
                     DSpaceObject resultDSO =
-                        identifier.getObjectIdentifier().getObject(context);
-	                validity.add(resultDSO);
+                        identifier.getObjectIdentifier().getObject(context);*/
+                    ResolvableIdentifier ri = IdentifierFactory.resolve(context, uri);
+                    DSpaceObject resultDSO = ri.getObject(context);
+                    validity.add(resultDSO);
 	            }
 	            
 	            this.validity = validity.complete();
@@ -300,9 +303,12 @@ public abstract class AbstractSearch extends AbstractDSpaceTransformer
                 {
 //                    DSpaceObject resultDSO = HandleManager.resolveToObject(
 //                            context, handle);
+                    /*
                     ExternalIdentifier identifier = dao.retrieve(uri);
                     DSpaceObject resultDSO =
-                        identifier.getObjectIdentifier().getObject(context);
+                        identifier.getObjectIdentifier().getObject(context);*/
+                    ResolvableIdentifier ri = IdentifierFactory.resolve(context, uri);
+                    DSpaceObject resultDSO = ri.getObject(context);
 
                     if (resultDSO instanceof Community
                             || resultDSO instanceof Collection)
@@ -330,10 +336,13 @@ public abstract class AbstractSearch extends AbstractDSpaceTransformer
                 {
 //                    DSpaceObject resultDSO = HandleManager.resolveToObject(
 //                            context, handle);
+                    /*
                     ExternalIdentifier identifier = dao.retrieve(uri);
                     DSpaceObject resultDSO =
-                        identifier.getObjectIdentifier().getObject(context);
+                        identifier.getObjectIdentifier().getObject(context);*/
 
+                    ResolvableIdentifier ri = IdentifierFactory.resolve(context, uri);
+                    DSpaceObject resultDSO = ri.getObject(context);
                     if (resultDSO instanceof Item)
                     {
                         if (referenceSet == null) {
@@ -384,7 +393,7 @@ public abstract class AbstractSearch extends AbstractDSpaceTransformer
             scope.setOptionSelected("/");
             for (Community community : Community.findAll(context))
             {
-                scope.addOption(community.getExternalIdentifier().getCanonicalForm(),community.getMetadata("name"));
+                scope.addOption(IdentifierFactory.getCanonicalForm(community),community.getMetadata("name"));
             }
         }
         else if (scopeDSO instanceof Community)
@@ -393,12 +402,12 @@ public abstract class AbstractSearch extends AbstractDSpaceTransformer
             // within
             Community community = (Community) scopeDSO;
             scope.addOption("/",T_all_of_dspace);
-            scope.addOption(community.getExternalIdentifier().getCanonicalForm(),community.getMetadata("name"));
-            scope.setOptionSelected(community.getExternalIdentifier().getCanonicalForm());
+            scope.addOption(IdentifierFactory.getCanonicalForm(community),community.getMetadata("name"));
+            scope.setOptionSelected(IdentifierFactory.getCanonicalForm(community));
 
             for (Collection collection : community.getCollections())
             {
-                scope.addOption(collection.getExternalIdentifier().getCanonicalForm(),collection.getMetadata("name"));
+                scope.addOption(IdentifierFactory.getCanonicalForm(collection),collection.getMetadata("name"));
             }
         }
         else if (scopeDSO instanceof Collection)
@@ -406,14 +415,14 @@ public abstract class AbstractSearch extends AbstractDSpaceTransformer
             // The scope is a collection, display all parent collections.
             Collection collection = (Collection) scopeDSO;
             scope.addOption("/",T_all_of_dspace);
-            scope.addOption(collection.getExternalIdentifier().getCanonicalForm(),collection.getMetadata("name"));
-            scope.setOptionSelected(collection.getExternalIdentifier().getCanonicalForm());
+            scope.addOption(IdentifierFactory.getCanonicalForm(collection),collection.getMetadata("name"));
+            scope.setOptionSelected(IdentifierFactory.getCanonicalForm(collection));
             
             Community[] communities = collection.getCommunities()[0]
                     .getAllParents();
             for (Community community : communities)
             {
-                scope.addOption(community.getExternalIdentifier().getCanonicalForm(),community.getMetadata("name"));
+                scope.addOption(IdentifierFactory.getCanonicalForm(community),community.getMetadata("name"));
             }
         }
     }
@@ -499,8 +508,11 @@ public abstract class AbstractSearch extends AbstractDSpaceTransformer
         {
             // Get the search scope from the location parameter
 //            dso = HandleManager.resolveToObject(context, scopeString);
+            ResolvableIdentifier ri = IdentifierFactory.resolve(context, scopeString);
+            dso = ri.getObject(context);
+            /*
             ExternalIdentifier identifier = dao.retrieve(scopeString);
-            dso = identifier.getObjectIdentifier().getObject(context);
+            dso = identifier.getObjectIdentifier().getObject(context);*/
         }
 
         return dso;

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/artifactbrowser/CollectionViewer.java

@@ -71,6 +71,7 @@ import org.dspace.content.Collection;
 import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
 import org.dspace.core.ConfigurationManager;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
 /**
@@ -130,7 +131,7 @@ public class CollectionViewer extends AbstractDSpaceTransformer implements Cache
             if (dso == null)
                 return "0";
                 
-            return HashUtil.hash(dso.getExternalIdentifier().getCanonicalForm());
+            return HashUtil.hash(IdentifierFactory.getCanonicalForm(dso));
         }
         catch (SQLException sqle)
         {
@@ -218,7 +219,7 @@ public class CollectionViewer extends AbstractDSpaceTransformer implements Cache
 				
 				String feedFormat = parts[0].trim()+"+xml";
 					
-				String feedURL = contextPath+"/feed/"+collection.getExternalIdentifier().getCanonicalForm()+"/"+format.trim();
+				String feedURL = IdentifierFactory.getURL(collection).toString() + "/"+format.trim();
 				pageMeta.addMetadata("feed", feedFormat).addContent(feedURL);
 			}
 		}
@@ -248,7 +249,7 @@ public class CollectionViewer extends AbstractDSpaceTransformer implements Cache
 
             // Search query
             Division query = search.addInteractiveDivision("collection-search",
-                    contextPath + "/handle/" + collection.getExternalIdentifier().getCanonicalForm() + "/search",
+                    IdentifierFactory.getURL(collection).toString() + "/search",
                     Division.METHOD_POST, "secondary search");
             
             Para para = query.addPara("search-query", null);
@@ -263,7 +264,7 @@ public class CollectionViewer extends AbstractDSpaceTransformer implements Cache
             List browse = browseDiv.addList("collection-browse", List.TYPE_SIMPLE,
                     "collection-browse");
             browse.setHead(T_head_browse);
-            String url = contextPath + "/handle/" + collection.getExternalIdentifier().getCanonicalForm();
+            String url = IdentifierFactory.getURL(collection).toString();
             browse.addItemXref(url + "/browse-title",T_browse_titles);
             browse.addItemXref(url + "/browse-author",T_browse_authors);
             browse.addItemXref(url + "/browse-date",T_browse_dates);

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/artifactbrowser/CommunityBrowser.java

@@ -39,13 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.artifactbrowser;
 
-import java.io.IOException;
-import java.io.Serializable;
-import java.sql.SQLException;
-import java.util.ArrayList;
-import java.util.Map;
-import java.util.Stack;
-
 import org.apache.avalon.framework.parameters.Parameters;
 import org.apache.cocoon.ProcessingException;
 import org.apache.cocoon.caching.CacheableProcessingComponent;
@@ -59,19 +52,26 @@ import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
 import org.dspace.app.xmlui.wing.element.Division;
-import org.dspace.app.xmlui.wing.element.ReferenceSet;
 import org.dspace.app.xmlui.wing.element.List;
-import org.dspace.app.xmlui.wing.element.Reference;
 import org.dspace.app.xmlui.wing.element.PageMeta;
+import org.dspace.app.xmlui.wing.element.Reference;
+import org.dspace.app.xmlui.wing.element.ReferenceSet;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
 import org.dspace.content.Community;
 import org.dspace.content.DSpaceObject;
 import org.dspace.core.ConfigurationManager;
 import org.dspace.core.Constants;
-
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.io.Serializable;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Map;
+import java.util.Stack;
+
 /**
  * Display a list of Communities and collections.
  * 
@@ -297,7 +297,7 @@ public class CommunityBrowser extends AbstractDSpaceTransformer implements Cache
         else if (dso instanceof Collection)
         	name = ((Collection) dso).getMetadata("name");
         
-        String url = contextPath + "/handle/"+dso.getExternalIdentifier().getCanonicalForm();
+        String url = IdentifierFactory.getURL(dso).toString();
         list.addItem().addHighlight("bold").addXref(url, name);
         
         List subList = null;
@@ -311,7 +311,7 @@ public class CommunityBrowser extends AbstractDSpaceTransformer implements Cache
             for (TreeNode collectionNode : collectionNodes)
             {
                 String collectionName = ((Collection) collectionNode.getDSO()).getMetadata("name");
-                String collectionUrl = contextPath + "/handle/"+collectionNode.getDSO().getExternalIdentifier().getCanonicalForm();
+                String collectionUrl = IdentifierFactory.getURL(collectionNode.getDSO()).toString();
                 subList.addItemXref(collectionUrl, collectionName);
             }
         }

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/artifactbrowser/CommunityViewer.java

@@ -39,10 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.artifactbrowser;
 
-import java.io.IOException;
-import java.io.Serializable;
-import java.sql.SQLException;
-
 import org.apache.cocoon.caching.CacheableProcessingComponent;
 import org.apache.cocoon.util.HashUtil;
 import org.apache.excalibur.source.SourceValidity;
@@ -56,11 +52,11 @@ import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
 import org.dspace.app.xmlui.wing.element.Division;
-import org.dspace.app.xmlui.wing.element.ReferenceSet;
 import org.dspace.app.xmlui.wing.element.List;
-import org.dspace.app.xmlui.wing.element.Reference;
 import org.dspace.app.xmlui.wing.element.PageMeta;
 import org.dspace.app.xmlui.wing.element.Para;
+import org.dspace.app.xmlui.wing.element.Reference;
+import org.dspace.app.xmlui.wing.element.ReferenceSet;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.browse.BrowseEngine;
 import org.dspace.browse.BrowseException;
@@ -73,8 +69,13 @@ import org.dspace.content.Item;
 import org.dspace.core.ConfigurationManager;
 import org.dspace.sort.SortException;
 import org.dspace.sort.SortOption;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.io.Serializable;
+import java.sql.SQLException;
+
 /**
  * Display a single community. This includes a full text search, browse by list,
  * community display and a list of recent submissions.
@@ -137,7 +138,7 @@ public class CommunityViewer extends AbstractDSpaceTransformer implements Cachea
             if (dso == null)
                 return "0"; // no item, something is wrong
             
-            return HashUtil.hash(dso.getExternalIdentifier().getCanonicalForm());
+            return HashUtil.hash(IdentifierFactory.getCanonicalForm(dso));
         } 
         catch (SQLException sqle)
         {
@@ -234,7 +235,7 @@ public class CommunityViewer extends AbstractDSpaceTransformer implements Cachea
 				
 				String feedFormat = parts[0].trim()+"+xml";
 					
-				String feedURL = contextPath+"/feed/"+community.getExternalIdentifier().getCanonicalForm()+"/"+format.trim();
+				String feedURL = IdentifierFactory.getURL(community).toString() +"/"+format.trim();
 				pageMeta.addMetadata("feed", feedFormat).addContent(feedURL);
 			}
 		}
@@ -268,7 +269,7 @@ public class CommunityViewer extends AbstractDSpaceTransformer implements Cachea
 
             // Search query
             Division query = search.addInteractiveDivision("community-search",
-                    contextPath + "/handle/" + community.getExternalIdentifier().getCanonicalForm() + "/search",
+                    IdentifierFactory.getURL(community).toString() + "/search",
                     Division.METHOD_POST, "secondary search");
             
             Para para = query.addPara("search-query", null);
@@ -283,7 +284,7 @@ public class CommunityViewer extends AbstractDSpaceTransformer implements Cachea
             List browse = browseDiv.addList("community-browse", List.TYPE_SIMPLE,
                     "community-browse");
             browse.setHead(T_head_browse);
-            String url = contextPath + "/handle/" + community.getExternalIdentifier().getCanonicalForm();
+            String url = IdentifierFactory.getURL(community).toString();
             browse.addItemXref(url + "/browse-title",T_browse_titles);
             browse.addItemXref(url + "/browse-author",T_browse_authors);
             browse.addItemXref(url + "/browse-date",T_browse_dates);

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/artifactbrowser/ConfigurableBrowse.java

@@ -89,6 +89,7 @@ import org.dspace.core.Constants;
 import org.dspace.core.Context;
 import org.dspace.sort.SortException;
 import org.dspace.sort.SortOption;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
 /**
@@ -174,7 +175,7 @@ public class ConfigurableBrowse extends AbstractDSpaceTransformer implements
             {
                 DSpaceObject dso = HandleUtil.obtainHandle(objectModel);
                 if (dso != null)
-                    key += "-" + dso.getExternalIdentifier().getCanonicalForm();            
+                    key += "-" + IdentifierFactory.getCanonicalForm(dso);            
 
                 return HashUtil.hash(key);
             }

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/artifactbrowser/ItemViewer.java

@@ -39,11 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.artifactbrowser;
 
-import java.io.IOException;
-import java.io.Serializable;
-import java.sql.SQLException;
-import java.util.Map;
-
 import org.apache.cocoon.caching.CacheableProcessingComponent;
 import org.apache.cocoon.environment.ObjectModelHelper;
 import org.apache.cocoon.environment.Request;
@@ -57,16 +52,22 @@ import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
 import org.dspace.app.xmlui.wing.element.Division;
-import org.dspace.app.xmlui.wing.element.ReferenceSet;
 import org.dspace.app.xmlui.wing.element.PageMeta;
 import org.dspace.app.xmlui.wing.element.Para;
+import org.dspace.app.xmlui.wing.element.ReferenceSet;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
 import org.dspace.content.DCValue;
 import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.io.Serializable;
+import java.sql.SQLException;
+import java.util.Map;
+
 /**
  * Display a single item.
  * 
@@ -104,7 +105,7 @@ public class ItemViewer extends AbstractDSpaceTransformer implements CacheablePr
             if (dso == null)
                 return "0"; // no item, something is wrong.
             
-            return HashUtil.hash(dso.getExternalIdentifier().getCanonicalForm() + "full:" + showFullItem(objectModel));
+            return HashUtil.hash(IdentifierFactory.getCanonicalForm(dso) + "full:" + showFullItem(objectModel));
         } 
         catch (SQLException sqle)
         {
@@ -158,7 +159,7 @@ public class ItemViewer extends AbstractDSpaceTransformer implements CacheablePr
         if (title != null)
             pageMeta.addMetadata("title").addContent(title);
         else
-            pageMeta.addMetadata("title").addContent(item.getExternalIdentifier().getCanonicalForm());
+            pageMeta.addMetadata("title").addContent(IdentifierFactory.getCanonicalForm(item));
 
         pageMeta.addTrailLink(contextPath + "/",T_dspace_home);
         HandleUtil.buildHandleTrail(item,pageMeta,contextPath);
@@ -183,19 +184,18 @@ public class ItemViewer extends AbstractDSpaceTransformer implements CacheablePr
         if (title != null)
             division.setHead(title);
         else
-            division.setHead(item.getExternalIdentifier().getCanonicalForm());
+            division.setHead(IdentifierFactory.getCanonicalForm(item));
 
         Para showfullPara = division.addPara(null, "item-view-toggle item-view-toggle-top");
 
         if (showFullItem(objectModel))
         {
-            String link = contextPath + "/handle/" + item.getExternalIdentifier().getCanonicalForm();
+            String link = IdentifierFactory.getURL(item).toString();
             showfullPara.addXref(link).addContent(T_show_simple);
         }
         else
         {
-            String link = contextPath + "/handle/" + item.getExternalIdentifier().getCanonicalForm()
-                    + "?show=full";
+            String link = IdentifierFactory.getURL(item).toString() + "?show=full";
             showfullPara.addXref(link).addContent(T_show_full);
         }
         
@@ -225,13 +225,12 @@ public class ItemViewer extends AbstractDSpaceTransformer implements CacheablePr
 
         if (showFullItem(objectModel))
         {
-            String link = contextPath + "/handle/" + item.getExternalIdentifier().getCanonicalForm();
+            String link = IdentifierFactory.getURL(item).toString();
             showfullPara.addXref(link).addContent(T_show_simple);
         }
         else
         {
-            String link = contextPath + "/handle/" + item.getExternalIdentifier().getCanonicalForm()
-                    + "?show=full";
+            String link = IdentifierFactory.getURL(item).toString() + "?show=full";
             showfullPara.addXref(link).addContent(T_show_full);
         }
     }

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/artifactbrowser/Navigation.java

@@ -39,12 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.artifactbrowser;
 
-import java.io.IOException;
-import java.io.Serializable;
-import java.sql.SQLException;
-import java.util.HashMap;
-import java.util.Map;
-
 import org.apache.cocoon.caching.CacheableProcessingComponent;
 import org.apache.cocoon.environment.ObjectModelHelper;
 import org.apache.cocoon.environment.Request;
@@ -66,8 +60,15 @@ import org.dspace.content.Collection;
 import org.dspace.content.Community;
 import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.io.Serializable;
+import java.sql.SQLException;
+import java.util.HashMap;
+import java.util.Map;
+
 /**
  * This transform applys the basic navigational links that should be available
  * on all pages generated by DSpace.
@@ -115,7 +116,7 @@ public class Navigation extends AbstractDSpaceTransformer implements CacheablePr
             
             DSpaceObject dso = HandleUtil.obtainHandle(objectModel);
             if (dso != null)
-                key += "-" + dso.getExternalIdentifier().getCanonicalForm();
+                key += "-" + IdentifierFactory.getCanonicalForm(dso);
 
             return HashUtil.hash(key);
         } 
@@ -192,7 +193,7 @@ public class Navigation extends AbstractDSpaceTransformer implements CacheablePr
             }
 
             // Add the configured browse lists for scoped browsing
-            String handle = dso.getExternalIdentifier().getCanonicalForm();
+            String handle = IdentifierFactory.getCanonicalForm(dso);
             addBrowseOptions(browseContext, contextPath + "/handle/" + handle + "/browse");
         }
     }
@@ -229,14 +230,14 @@ public class Navigation extends AbstractDSpaceTransformer implements CacheablePr
         {
             if (dso instanceof Item)
             {
-                pageMeta.addMetadata("focus","object").addContent(dso.getExternalIdentifier().getCanonicalForm());
+                pageMeta.addMetadata("focus","object").addContent(IdentifierFactory.getCanonicalForm(dso));
                 this.getObjectManager().manageObject(dso);
                 dso = ((Item) dso).getOwningCollection();
             }
             
             if (dso instanceof Collection || dso instanceof Community)
             {
-                pageMeta.addMetadata("focus","container").addContent(dso.getExternalIdentifier().getCanonicalForm());
+                pageMeta.addMetadata("focus","container").addContent(IdentifierFactory.getCanonicalForm(dso));
                 this.getObjectManager().manageObject(dso);
             }
         }

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/artifactbrowser/RestrictedItem.java

@@ -39,14 +39,11 @@
  */
 package org.dspace.app.xmlui.aspect.artifactbrowser;
 
-import java.io.IOException;
-import java.sql.SQLException;
-
 import org.apache.cocoon.environment.ObjectModelHelper;
 import org.apache.cocoon.environment.Request;
 import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
-import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.utils.HandleUtil;
+import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
@@ -57,8 +54,12 @@ import org.dspace.content.Bitstream;
 import org.dspace.content.Collection;
 import org.dspace.content.Community;
 import org.dspace.content.DSpaceObject;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.sql.SQLException;
+
 /**
  * Display an item restricted message.
  * 
@@ -125,7 +126,7 @@ public class RestrictedItem extends AbstractDSpaceTransformer //implements Cache
         } 
         else 
         {
-        	String handle = dso.getExternalIdentifier().getCanonicalForm();
+        	String handle = IdentifierFactory.getCanonicalForm(dso);
         	type = "item";
         	if (handle == null || "".equals(handle))
         	{

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/general/HandleMatcher.java

@@ -121,7 +121,6 @@ public class HandleMatcher extends AbstractLogEnabled implements Matcher
 
         while (current != null)
         {
-
             // Check if the current object has the handle we are looking for.
             if (current.getExternalIdentifier().getCanonicalForm().equals(handle))
                 return current;

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/CollectionViewer.java

@@ -39,10 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.submission;
 
-import java.io.IOException;
-import java.io.Serializable;
-import java.sql.SQLException;
-
 import org.apache.cocoon.caching.CacheableProcessingComponent;
 import org.apache.cocoon.util.HashUtil;
 import org.apache.excalibur.source.SourceValidity;
@@ -58,8 +54,13 @@ import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
 import org.dspace.content.DSpaceObject;
 import org.dspace.eperson.Group;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.io.Serializable;
+import java.sql.SQLException;
+
 /**
  * Add a single link to the display item page that allows
  * the user to submit a new item to this collection.
@@ -89,7 +90,7 @@ public class CollectionViewer extends AbstractDSpaceTransformer implements Cache
             if (dso == null)
                 return "0";
                 
-            return HashUtil.hash(dso.getExternalIdentifier().getCanonicalForm());
+            return HashUtil.hash(IdentifierFactory.getCanonicalForm(dso));
         }
         catch (SQLException sqle)
         {
@@ -163,7 +164,7 @@ public class CollectionViewer extends AbstractDSpaceTransformer implements Cache
         
         Division home = body.addDivision("collection-home","primary repository collection");
         Division viewer = home.addDivision("collection-view","secondary");
-        String submitURL = contextPath + "/handle/" + collection.getExternalIdentifier().getCanonicalForm() + "/submit";
+        String submitURL = IdentifierFactory.getURL(collection) + "/submit";
         viewer.addPara().addXref(submitURL,"Submit a new item to this collection"); 
         
     }

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/FlowUtils.java

@@ -40,14 +40,6 @@
 
 package org.dspace.app.xmlui.aspect.submission;
 
-import java.io.IOException;
-import java.sql.SQLException;
-import java.util.ArrayList;
-import java.util.Map;
-
-import javax.servlet.ServletException;
-import javax.servlet.http.HttpServletRequest;
-
 import org.apache.cocoon.environment.ObjectModelHelper;
 import org.apache.cocoon.environment.Request;
 import org.apache.cocoon.environment.http.HttpEnvironment;
@@ -57,8 +49,8 @@ import org.dspace.app.util.SubmissionConfig;
 import org.dspace.app.util.SubmissionConfigReader;
 import org.dspace.app.util.SubmissionInfo;
 import org.dspace.app.util.SubmissionStepConfig;
-import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.utils.ContextUtil;
+import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
 import org.dspace.content.InProgressSubmission;
@@ -67,9 +59,17 @@ import org.dspace.content.WorkspaceItem;
 import org.dspace.core.Context;
 import org.dspace.core.LogManager;
 import org.dspace.submit.AbstractProcessingStep;
+import org.dspace.uri.IdentifierFactory;
 import org.dspace.workflow.WorkflowItem;
 import org.dspace.workflow.WorkflowManager;
 
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServletRequest;
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Map;
+
 /**
  * This is a utility class to aid in the submission flow scripts. 
  * Since data validation is cumbersome inside a flow script this 
@@ -451,7 +451,7 @@ public class FlowUtils {
 			//Load the Submission Process for the collection this WSI is associated with
             Collection c = wsi.getCollection();
             SubmissionConfigReader subConfigReader = new SubmissionConfigReader();
-            SubmissionConfig subConfig = subConfigReader.getSubmissionConfig(c.getExternalIdentifier().getCanonicalForm(), false);
+            SubmissionConfig subConfig = subConfigReader.getSubmissionConfig(IdentifierFactory.getCanonicalForm(c), false);
             
             // Set the "stage_reached" column on the workspace item
             // to the LAST page of the LAST step in the submission process 

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/Submissions.java

@@ -39,9 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.submission;
 
-import java.io.IOException;
-import java.sql.SQLException;
-
 import org.dspace.app.xmlui.cocoon.AbstractDSpaceTransformer;
 import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.wing.Message;
@@ -62,10 +59,14 @@ import org.dspace.content.SupervisedItem;
 import org.dspace.content.WorkspaceItem;
 import org.dspace.core.Constants;
 import org.dspace.eperson.EPerson;
+import org.dspace.uri.IdentifierFactory;
 import org.dspace.workflow.WorkflowItem;
 import org.dspace.workflow.WorkflowManager;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.sql.SQLException;
+
 /**
  * @author Scott Phillips
  */
@@ -245,7 +246,7 @@ public class Submissions extends AbstractDSpaceTransformer
         	for (WorkflowItem owned : ownedItems)
         	{
         		int workflowItemID = owned.getID();
-        		String url = contextPath+"/handle/"+owned.getCollection().getExternalIdentifier().getCanonicalForm()+"/workflow?workflowID="+workflowItemID;
+        		String url = IdentifierFactory.getURL(owned.getCollection()).toString()+"/workflow?workflowID="+workflowItemID;
         		DCValue[] titles = owned.getItem().getDC("title", null, Item.ANY);
         		String collectionName = owned.getCollection().getMetadata("name");
         		EPerson submitter = owned.getSubmitter();
@@ -308,7 +309,7 @@ public class Submissions extends AbstractDSpaceTransformer
         	for (WorkflowItem pooled : pooledItems)
         	{
         		int workflowItemID = pooled.getID();
-        		String url = contextPath+"/handle/"+pooled.getCollection().getExternalIdentifier().getCanonicalForm()+"/workflow?workflowID="+workflowItemID;
+        		String url = IdentifierFactory.getURL(pooled.getCollection()).toString()+"/workflow?workflowID="+workflowItemID;
         		DCValue[] titles = pooled.getItem().getDC("title", null, Item.ANY);
         		String collectionName = pooled.getCollection().getMetadata("name");
         		EPerson submitter = pooled.getSubmitter();

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/submit/CCLicenseStep.java

@@ -39,13 +39,10 @@
  */
 package org.dspace.app.xmlui.aspect.submission.submit;
 
-import java.io.IOException;
-import java.sql.SQLException;
-
 import org.apache.cocoon.environment.ObjectModelHelper;
 import org.apache.cocoon.environment.Request;
-import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.aspect.submission.AbstractSubmissionStep;
+import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
@@ -56,8 +53,12 @@ import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
 import org.dspace.content.Item;
 import org.dspace.license.CreativeCommons;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.sql.SQLException;
+
 /**
  * This is an optional page of the item submission processes. The Creative 
  * Commons license may be added to an item in addition to the standard distribution 
@@ -112,7 +113,7 @@ public class CCLicenseStep extends AbstractSubmissionStep
 		// Build the url to and from creative commons
 		Item item = submission.getItem();
 		Collection collection = submission.getCollection();
-		String actionURL = contextPath + "/handle/"+collection.getExternalIdentifier().getCanonicalForm() + "/submit";
+		String actionURL = IdentifierFactory.getURL(collection).toString() + "/submit";
 		
 		Request request = ObjectModelHelper.getRequest(objectModel);
 		boolean https = request.isSecure();

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/submit/DescribeStep.java

@@ -39,21 +39,13 @@
  */
 package org.dspace.app.xmlui.aspect.submission.submit;
 
-import java.io.IOException;
-import java.sql.SQLException;
-import java.util.ArrayList;
-import java.util.Locale;
-
-import javax.servlet.ServletException;
-
 import org.apache.log4j.Logger;
-
 import org.dspace.app.util.DCInput;
 import org.dspace.app.util.DCInputSet;
 import org.dspace.app.util.DCInputsReader;
-import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.aspect.submission.AbstractSubmissionStep;
 import org.dspace.app.xmlui.aspect.submission.FlowUtils;
+import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
@@ -73,10 +65,15 @@ import org.dspace.content.DCPersonName;
 import org.dspace.content.DCSeriesNumber;
 import org.dspace.content.DCValue;
 import org.dspace.content.Item;
-
-
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import javax.servlet.ServletException;
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.Locale;
+
 /**
  * This is a step of the item submission processes. The describe step queries 
  * the user for various metadata items about the item. For the most part all the 
@@ -171,13 +168,13 @@ public class DescribeStep extends AbstractSubmissionStep
 		// Obtain the inputs (i.e. metadata fields we are going to display)
 		Item item = submission.getItem();
 		Collection collection = submission.getCollection();
-		String actionURL = contextPath + "/handle/"+collection.getExternalIdentifier().getCanonicalForm() + "/submit";
+		String actionURL = IdentifierFactory.getURL(collection).toString() + "/submit";
 
 		DCInputSet inputSet = null;
 		DCInput[] inputs = {};
 		try 
 		{
-			inputSet = getInputsReader().getInputs(submission.getCollection().getExternalIdentifier().getCanonicalForm());
+			inputSet = getInputsReader().getInputs(IdentifierFactory.getCanonicalForm(submission.getCollection()));
 			inputs = inputSet.getPageRows(getPage()-1, submission.hasMultipleTitles(), submission.isPublishedBefore());
 		} 
 		catch (ServletException se) 
@@ -317,7 +314,7 @@ public class DescribeStep extends AbstractSubmissionStep
         DCInputSet inputSet = null;
         try 
         {
-            inputSet = getInputsReader().getInputs(submission.getCollection().getExternalIdentifier().getCanonicalForm());
+            inputSet = getInputsReader().getInputs(IdentifierFactory.getCanonicalForm(submission.getCollection()));
         } 
         catch (ServletException se) 
         {

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/submit/EditFileStep.java

@@ -39,15 +39,11 @@
  */
 package org.dspace.app.xmlui.aspect.submission.submit;
 
-import java.io.IOException;
-import java.sql.SQLException;
-import java.util.Map;
-
 import org.apache.avalon.framework.parameters.Parameters;
 import org.apache.cocoon.ProcessingException;
 import org.apache.cocoon.environment.SourceResolver;
-import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.aspect.submission.AbstractStep;
+import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
@@ -60,8 +56,13 @@ import org.dspace.content.Bitstream;
 import org.dspace.content.BitstreamFormat;
 import org.dspace.content.Collection;
 import org.dspace.content.FormatIdentifier;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.Map;
+
 /**
  * This is a sub step of the Upload step during item submission. This 
  * page allows the user to edit metadata about a bitstream (aka file) 
@@ -139,7 +140,7 @@ public class EditFileStep extends AbstractStep
             UIException, SQLException, IOException, AuthorizeException
     {
 		Collection collection = submission.getCollection();
-		String actionURL = contextPath + "/handle/"+collection.getExternalIdentifier().getCanonicalForm() + "/submit";
+		String actionURL = IdentifierFactory.getURL(collection).toString() + "/submit";
 		
     	// Get the bitstream and all the various formats
 		BitstreamFormat currentFormat = bitstream.getFormat();

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/submit/InitialQuestionsStep.java

@@ -39,11 +39,8 @@
  */
 package org.dspace.app.xmlui.aspect.submission.submit;
 
-import java.io.IOException;
-import java.sql.SQLException;
-
-import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.aspect.submission.AbstractSubmissionStep;
+import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
@@ -54,8 +51,12 @@ import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
 import org.dspace.content.DCValue;
 import org.dspace.content.Item;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.sql.SQLException;
+
 /**
  * This is the first official step of the item submission processes. This
  * step will ask the user two questions which will direct whether future
@@ -123,7 +124,7 @@ public class InitialQuestionsStep extends AbstractSubmissionStep
     	// Get any metadata that may be removed by unselecting one of these options.
     	Item item = submission.getItem();
 		Collection collection = submission.getCollection();
-		String actionURL = contextPath + "/handle/"+collection.getExternalIdentifier().getCanonicalForm() + "/submit";
+		String actionURL = IdentifierFactory.getURL(collection).toString() + "/submit";
 		
 		DCValue[] titles = item.getDC("title", "alternative", Item.ANY);
 		

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/submit/LicenseStep.java

@@ -39,15 +39,11 @@
  */
 package org.dspace.app.xmlui.aspect.submission.submit;
 
-import java.io.IOException;
-import java.sql.SQLException;
-import java.util.Map;
-
 import org.apache.avalon.framework.parameters.Parameters;
 import org.apache.cocoon.ProcessingException;
 import org.apache.cocoon.environment.SourceResolver;
-import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.aspect.submission.AbstractSubmissionStep;
+import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
@@ -57,8 +53,13 @@ import org.dspace.app.xmlui.wing.element.List;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
 import org.dspace.license.CreativeCommons;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.Map;
+
 /**
  * This is the last step of the item submission processes. During this
  * step the user must agree to the collection's standard distribution
@@ -146,7 +147,7 @@ public class LicenseStep extends AbstractSubmissionStep
         
         // Get the full text for the actuial licese
 		Collection collection = submission.getCollection();
-		String actionURL = contextPath + "/handle/"+collection.getExternalIdentifier().getCanonicalForm() + "/submit";
+		String actionURL = IdentifierFactory.getURL(collection).toString() + "/submit";
 		String licenseText = collection.getLicense();
 		
 		Division div = body.addInteractiveDivision("submit-license",actionURL, Division.METHOD_POST,"primary submission");

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/submit/ResumeStep.java

@@ -39,24 +39,25 @@
  */
 package org.dspace.app.xmlui.aspect.submission.submit;
 
-import java.io.IOException;
-import java.sql.SQLException;
-
 import org.apache.cocoon.environment.ObjectModelHelper;
 import org.apache.cocoon.environment.Request;
-import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.aspect.submission.AbstractStep;
+import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
 import org.dspace.app.xmlui.wing.element.Division;
-import org.dspace.app.xmlui.wing.element.ReferenceSet;
 import org.dspace.app.xmlui.wing.element.List;
+import org.dspace.app.xmlui.wing.element.ReferenceSet;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
 import org.dspace.content.Item;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.sql.SQLException;
+
 /**
  * This step is used when the a user clicks an unfinished submission 
  * from the submissions page. Here we present the full item and then 
@@ -94,7 +95,7 @@ public class ResumeStep extends AbstractStep
 		// Get any metadata that may be removed by unselecting one of these options.
 		Item item = submission.getItem();
 		Collection collection = submission.getCollection();
-		String actionURL = contextPath + "/handle/"+collection.getExternalIdentifier().getCanonicalForm() + "/submit";
+		String actionURL = IdentifierFactory.getURL(collection).toString() + "/submit";
 
 		Request request = ObjectModelHelper.getRequest(objectModel);
 		String showfull = request.getParameter("showfull");

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/submit/ReviewStep.java

@@ -39,21 +39,16 @@
  */
 package org.dspace.app.xmlui.aspect.submission.submit;
 
-import java.io.IOException;
-import java.sql.SQLException;
-import java.util.Map;
-import java.util.Set;
-
 import org.apache.avalon.framework.parameters.Parameters;
 import org.apache.cocoon.ProcessingException;
 import org.apache.cocoon.environment.SourceResolver;
 import org.apache.log4j.Logger;
 import org.dspace.app.util.SubmissionConfig;
 import org.dspace.app.util.SubmissionStepConfig;
-import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.aspect.submission.AbstractStep;
 import org.dspace.app.xmlui.aspect.submission.AbstractSubmissionStep;
 import org.dspace.app.xmlui.aspect.submission.FlowUtils;
+import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
@@ -62,8 +57,14 @@ import org.dspace.app.xmlui.wing.element.List;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
 import org.dspace.submit.step.UploadStep;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.Map;
+import java.util.Set;
+
 /**
  * This is a step of the item submission processes. This is where the user
  * reviews everything they have entered about the item up to this point.
@@ -137,7 +138,7 @@ public class ReviewStep extends AbstractSubmissionStep
 	{
 		// Get actionable URL
 		Collection collection = submission.getCollection();
-		String actionURL = contextPath + "/handle/"+collection.getExternalIdentifier().getCanonicalForm() + "/submit";
+		String actionURL = IdentifierFactory.getURL(collection).toString() + "/submit";
 		
         SubmissionConfig subConfig = submissionInfo.getSubmissionConfig();
         

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/submit/SaveOrRemoveStep.java

@@ -39,12 +39,8 @@
  */
 package org.dspace.app.xmlui.aspect.submission.submit;
 
-import java.io.IOException;
-import java.sql.SQLException;
-
-
-import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.aspect.submission.AbstractStep;
+import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
@@ -52,8 +48,12 @@ import org.dspace.app.xmlui.wing.element.Division;
 import org.dspace.app.xmlui.wing.element.List;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.sql.SQLException;
+
 /**
  * This is sort-of a step of the submission processes (not
  * an official "step", since it does not extend AbstractSubmissionStep). 
@@ -96,7 +96,7 @@ public class SaveOrRemoveStep extends AbstractStep
 	UIException, SQLException, IOException, AuthorizeException
 	{	
 		Collection collection = submission.getCollection();
-		String actionURL = contextPath + "/handle/"+collection.getExternalIdentifier().getCanonicalForm() + "/submit";
+		String actionURL = IdentifierFactory.getURL(collection).toString() + "/submit";
 		
 		Division div = body.addInteractiveDivision("submit-save-or-cancel",actionURL, Division.METHOD_POST,"primary submission");
 		div.setHead(T_submission_head);

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/submit/SelectCollectionStep.java

@@ -56,9 +56,8 @@ import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
 import org.dspace.content.Community;
 import org.dspace.content.DSpaceObject;
-import org.dspace.uri.ExternalIdentifier;
-import org.dspace.uri.dao.ExternalIdentifierDAO;
-import org.dspace.uri.dao.ExternalIdentifierDAOFactory;
+import org.dspace.uri.ResolvableIdentifier;
+import org.dspace.uri.IdentifierFactory;
 import org.dspace.core.Constants;
 import org.xml.sax.SAXException;
 
@@ -106,14 +105,16 @@ public class SelectCollectionStep extends AbstractSubmissionStep
     {     
 		Collection[] collections; // List of possible collections.
 //		DSpaceObject dso = HandleManager.resolveToObject(context, handle);
+        /*
         ExternalIdentifierDAO identifierDAO =
             ExternalIdentifierDAOFactory.getInstance(context);
-        ExternalIdentifier eid = identifierDAO.retrieve(handle);
+        ExternalIdentifier eid = identifierDAO.retrieve(handle);*/
+        ResolvableIdentifier eid = IdentifierFactory.resolve(context, handle);
 
         DSpaceObject dso = null;
         if (eid != null)
         {
-            dso = eid.getObjectIdentifier().getObject(context);
+            dso = eid.getObject(context);
         }
 
         if (dso != null && dso instanceof Community)
@@ -142,7 +143,7 @@ public class SelectCollectionStep extends AbstractSubmissionStep
         	String name = collection.getMetadata("name");
    		   	if (name.length() > 50)
    		   		name = name.substring(0, 47) + "...";
-        	select.addOption(collection.getExternalIdentifier().getCanonicalForm(),name);
+        	select.addOption(IdentifierFactory.getCanonicalForm(collection),name);
         }
         
         Button submit = list.addItem().addButton("submit");

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/submit/UploadStep.java

@@ -39,16 +39,12 @@
  */
 package org.dspace.app.xmlui.aspect.submission.submit;
 
-import java.io.IOException;
-import java.sql.SQLException;
-import java.util.Map;
-
 import org.apache.avalon.framework.parameters.Parameters;
 import org.apache.cocoon.ProcessingException;
 import org.apache.cocoon.environment.SourceResolver;
 import org.apache.log4j.Logger;
-import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.aspect.submission.AbstractSubmissionStep;
+import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
@@ -67,9 +63,14 @@ import org.dspace.content.BitstreamFormat;
 import org.dspace.content.Bundle;
 import org.dspace.content.Collection;
 import org.dspace.content.Item;
+import org.dspace.uri.IdentifierFactory;
 import org.dspace.workflow.WorkflowItem;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.sql.SQLException;
+import java.util.Map;
+
 /**
  * This is a step of the item submission processes. The upload
  * stages allows the user to upload files into the submission. The
@@ -185,7 +186,7 @@ public class UploadStep extends AbstractSubmissionStep
         // Get a list of all files in the original bundle
 		Item item = submission.getItem();
 		Collection collection = submission.getCollection();
-		String actionURL = contextPath + "/handle/"+collection.getExternalIdentifier().getCanonicalForm() + "/submit";
+		String actionURL = IdentifierFactory.getURL(collection).toString() + "/submit";
 		boolean workflow = submission instanceof WorkflowItem;
 		Bundle[] bundles = item.getBundles("ORIGINAL");
 		Bitstream[] bitstreams = new Bitstream[0];

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/workflow/PerformTaskStep.java

@@ -39,9 +39,6 @@
  */
 package org.dspace.app.xmlui.aspect.submission.workflow;
 
-import java.io.IOException;
-import java.sql.SQLException;
-
 import org.apache.cocoon.environment.ObjectModelHelper;
 import org.apache.cocoon.environment.Request;
 import org.dspace.app.xmlui.aspect.submission.AbstractStep;
@@ -56,10 +53,14 @@ import org.dspace.app.xmlui.wing.element.Table;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
 import org.dspace.content.Item;
+import org.dspace.uri.IdentifierFactory;
 import org.dspace.workflow.WorkflowItem;
 import org.dspace.workflow.WorkflowManager;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.sql.SQLException;
+
 /**
  * 
  * This step displays a workfrow item to the user and and presents several
@@ -133,7 +134,7 @@ public class PerformTaskStep extends AbstractStep
     	// Get any metadata that may be removed by unselecting one of these options.
     	Item item = submission.getItem();
 		Collection collection = submission.getCollection();
-		String actionURL = contextPath + "/handle/"+collection.getExternalIdentifier().getCanonicalForm() + "/workflow";
+		String actionURL = IdentifierFactory.getURL(collection).toString() + "/workflow";
 		int state = ((WorkflowItem) submission).getState();
     	
     	Request request = ObjectModelHelper.getRequest(objectModel);

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/aspect/submission/workflow/RejectTaskStep.java

@@ -39,25 +39,26 @@
  */
 package org.dspace.app.xmlui.aspect.submission.workflow;
 
-import java.io.IOException;
-import java.sql.SQLException;
-
 import org.apache.cocoon.environment.ObjectModelHelper;
 import org.apache.cocoon.environment.Request;
-import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.aspect.submission.AbstractStep;
+import org.dspace.app.xmlui.utils.UIException;
 import org.dspace.app.xmlui.wing.Message;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.app.xmlui.wing.element.Body;
 import org.dspace.app.xmlui.wing.element.Division;
-import org.dspace.app.xmlui.wing.element.ReferenceSet;
 import org.dspace.app.xmlui.wing.element.List;
+import org.dspace.app.xmlui.wing.element.ReferenceSet;
 import org.dspace.app.xmlui.wing.element.TextArea;
 import org.dspace.authorize.AuthorizeException;
 import org.dspace.content.Collection;
 import org.dspace.content.Item;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.io.IOException;
+import java.sql.SQLException;
+
 /**
  * This step is used when the user has selected to
  * reject the item. Here they are asked to enter
@@ -96,7 +97,7 @@ public class RejectTaskStep extends AbstractStep
     {
     	Item item = submission.getItem();
 		Collection collection = submission.getCollection();
-		String actionURL = contextPath + "/handle/"+collection.getExternalIdentifier().getCanonicalForm() + "/workflow";
+		String actionURL = IdentifierFactory.getURL(collection).toString() + "/workflow";
     	
     	Request request = ObjectModelHelper.getRequest(objectModel);
 		String showfull = request.getParameter("showfull");

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/cocoon/BitstreamReader.java

@@ -68,6 +68,8 @@ import org.dspace.content.Bundle;
 import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
 import org.dspace.uri.ExternalIdentifier;
+import org.dspace.uri.ResolvableIdentifier;
+import org.dspace.uri.IdentifierFactory;
 import org.dspace.uri.dao.ExternalIdentifierDAO;
 import org.dspace.uri.dao.ExternalIdentifierDAOFactory;
 import org.dspace.core.ConfigurationManager;
@@ -221,12 +223,16 @@ public class BitstreamReader extends AbstractReader implements Recyclable
             else if (handle != null)
             {
             	// Reference by an item's handle.
+                /*
                 ExternalIdentifierDAO identifierDAO =
                         ExternalIdentifierDAOFactory.getInstance(context);
                 ExternalIdentifier eid = identifierDAO.retrieve(handle);
-                dso = eid.getObjectIdentifier().getObject(context);
+                dso = eid.getObjectIdentifier().getObject(context);*/
 
-            	if (dso instanceof Item && sequence > -1)
+                ResolvableIdentifier ri = IdentifierFactory.resolve(context, handle);
+                dso = ri.getObject(context);
+
+                if (dso instanceof Item && sequence > -1)
             	{
             		bitstream = findBitstreamBySequence((Item) dso,sequence);
             	}
@@ -253,11 +259,11 @@ public class BitstreamReader extends AbstractReader implements Recyclable
             		String redictURL = request.getContextPath() + "/handle/";
             		if (item!=null){
 //                        redictURL += item.getHandle();
-            			redictURL += item.getExternalIdentifier().getCanonicalForm();
+            			redictURL += IdentifierFactory.getCanonicalForm(item);
             		}
             		else if(dso!=null){
 //            			redictURL += dso.getHandle();
-                        redictURL += dso.getExternalIdentifier().getCanonicalForm();
+                        redictURL += IdentifierFactory.getCanonicalForm(dso);
             		}
             		redictURL += "/restricted-resource?bitstreamId=" + bitstream.getID();
 

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/cocoon/DSpaceFeedGenerator.java

@@ -40,14 +40,11 @@
 
 package org.dspace.app.xmlui.cocoon;
 
-import java.io.IOException;
-import java.io.Serializable;
-import java.sql.SQLException;
-import java.util.ArrayList;
-import java.util.List;
-import java.util.Map;
-import java.util.StringTokenizer;
-
+import com.sun.syndication.feed.rss.Channel;
+import com.sun.syndication.feed.rss.Description;
+import com.sun.syndication.feed.rss.Image;
+import com.sun.syndication.io.FeedException;
+import com.sun.syndication.io.WireFeedOutput;
 import org.apache.avalon.excalibur.pool.Recyclable;
 import org.apache.avalon.framework.configuration.Configurable;
 import org.apache.avalon.framework.configuration.Configuration;
@@ -70,7 +67,6 @@ import org.dspace.browse.BrowseEngine;
 import org.dspace.browse.BrowseException;
 import org.dspace.browse.BrowseIndex;
 import org.dspace.browse.BrowserScope;
-import org.dspace.sort.SortOption;
 import org.dspace.content.Bitstream;
 import org.dspace.content.Collection;
 import org.dspace.content.Community;
@@ -78,23 +74,26 @@ import org.dspace.content.DCDate;
 import org.dspace.content.DCValue;
 import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
-import org.dspace.uri.ExternalIdentifier;
-import org.dspace.uri.dao.ExternalIdentifierDAO;
-import org.dspace.uri.dao.ExternalIdentifierDAOFactory;
 import org.dspace.core.ConfigurationManager;
 import org.dspace.core.Constants;
 import org.dspace.core.Context;
+import org.dspace.sort.SortException;
+import org.dspace.sort.SortOption;
+import org.dspace.uri.IdentifierFactory;
+import org.dspace.uri.ResolvableIdentifier;
 import org.w3c.dom.Document;
 import org.w3c.dom.Element;
 import org.w3c.dom.Node;
 import org.w3c.dom.NodeList;
 import org.xml.sax.SAXException;
 
-import com.sun.syndication.feed.rss.Channel;
-import com.sun.syndication.feed.rss.Description;
-import com.sun.syndication.feed.rss.Image;
-import com.sun.syndication.io.FeedException;
-import com.sun.syndication.io.WireFeedOutput;
+import java.io.IOException;
+import java.io.Serializable;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Map;
+import java.util.StringTokenizer;
 
 /**
  * 
@@ -190,10 +189,13 @@ public class DSpaceFeedGenerator extends AbstractGenerator
     			if (uri != null)
                 {
 //    				dso = HandleManager.resolveToObject(context, handle);
+                    /*
                     ExternalIdentifierDAO dao =
                         ExternalIdentifierDAOFactory.getInstance(context);
                     ExternalIdentifier identifier = dao.retrieve(uri);
-                    dso = identifier.getObjectIdentifier().getObject(context);
+                    dso = identifier.getObjectIdentifier().getObject(context);*/
+                    ResolvableIdentifier ri = IdentifierFactory.resolve(context, uri);
+                    dso = ri.getObject(context);
                 }
     			
     			validity.add(dso);
@@ -258,12 +260,15 @@ public class DSpaceFeedGenerator extends AbstractGenerator
 			if (uri != null)
 			{
 //                dso = HandleManager.resolveToObject(context, handle);
+                /*
                 ExternalIdentifierDAO dao =
                     ExternalIdentifierDAOFactory.getInstance(context);
                 ExternalIdentifier identifier = dao.retrieve(uri);
-                dso = identifier.getObjectIdentifier().getObject(context);
+                dso = identifier.getObjectIdentifier().getObject(context);*/
+                ResolvableIdentifier ri = IdentifierFactory.resolve(context, uri);
+                dso = ri.getObject(context);
 				
-				if (dso == null)
+                if (dso == null)
 				{
 					// If we were unable to find a uri then return page not found.
 					throw new ResourceNotFoundException("Unable to find DSpace object matching the given URI: "+uri);
@@ -588,7 +593,11 @@ public class DSpaceFeedGenerator extends AbstractGenerator
     	{
     		log.error("Caught browse exception", bex);
     	}
-    	return this.recentSubmissionItems;
+        catch (SortException sex) // apparently it's contageous
+        {
+            log.error("Caught sort exception", sex);
+        }
+        return this.recentSubmissionItems;
     }
     
     /**
@@ -615,10 +624,10 @@ public class DSpaceFeedGenerator extends AbstractGenerator
 			return url;	
     	}
     	
-		if (ConfigurationManager.getBooleanProperty("webui.feed.localresolve")
-                || dso.getExternalIdentifier() == null)
+		if (ConfigurationManager.getBooleanProperty("webui.feed.localresolve"))
 		{
-			Request request = ObjectModelHelper.getRequest(objectModel);
+            /*
+            Request request = ObjectModelHelper.getRequest(objectModel);
 
 			String url = (request.isSecure()) ? "https://" : "http://";
 			url += ConfigurationManager.getProperty("dspace.hostname");
@@ -626,10 +635,12 @@ public class DSpaceFeedGenerator extends AbstractGenerator
 			url += request.getContextPath();
 			url += "/handle/" + dso.getExternalIdentifier().getCanonicalForm();
 			return url;
-		}
+			*/
+            return IdentifierFactory.getLocalURL(dso).toString();
+        }
 		else
 		{
-            return dso.getExternalIdentifier().getURI().toString();
+            return IdentifierFactory.getURL(dso).toString();
 		}
     }
     

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/cocoon/DSpaceMETSGenerator.java

@@ -59,9 +59,8 @@ import org.dspace.content.Community;
 import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
 import org.dspace.content.crosswalk.CrosswalkException;
-import org.dspace.uri.ExternalIdentifier;
-import org.dspace.uri.dao.ExternalIdentifierDAO;
-import org.dspace.uri.dao.ExternalIdentifierDAOFactory;
+import org.dspace.uri.ResolvableIdentifier;
+import org.dspace.uri.IdentifierFactory;
 import org.dspace.core.ConfigurationManager;
 import org.dspace.core.Context;
 import org.xml.sax.SAXException;
@@ -172,12 +171,15 @@ public class DSpaceMETSGenerator extends AbstractGenerator
 			// Specified using a regular handle. 
 //         	DSpaceObject dso = HandleManager.resolveToObject(context, handle);
          	// FIXME: This could be totally broken, I have no idea
+             /*
             ExternalIdentifierDAO identifierDAO =
                 ExternalIdentifierDAOFactory.getInstance(context);
             ExternalIdentifier eid = identifierDAO.retrieve(uri);
-            DSpaceObject dso = eid.getObjectIdentifier().getObject(context);
-         	
-         	// Handles can be either items or containers.
+            DSpaceObject dso = eid.getObjectIdentifier().getObject(context);*/
+            ResolvableIdentifier ri = IdentifierFactory.resolve(context, uri);
+            DSpaceObject dso = ri.getObject(context);
+
+             // Handles can be either items or containers.
          	if (dso instanceof Item)
          		adapter = new ItemAdapter((Item) dso, contextPath);
          	else if (dso instanceof Collection || dso instanceof Community)

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/objectmanager/AbstractAdapter.java

@@ -40,12 +40,6 @@
 
 package org.dspace.app.xmlui.objectmanager;
 
-import java.io.IOException;
-import java.io.UnsupportedEncodingException;
-import java.sql.SQLException;
-import java.util.ArrayList;
-import java.util.List;
-
 import org.dspace.app.util.Util;
 import org.dspace.app.xmlui.wing.AttributeMap;
 import org.dspace.app.xmlui.wing.Namespace;
@@ -56,12 +50,19 @@ import org.dspace.content.Item;
 import org.dspace.content.crosswalk.CrosswalkException;
 import org.dspace.content.crosswalk.DisseminationCrosswalk;
 import org.dspace.core.PluginManager;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.ContentHandler;
 import org.xml.sax.SAXException;
 import org.xml.sax.ext.LexicalHandler;
 import org.xml.sax.helpers.AttributesImpl;
 import org.xml.sax.helpers.NamespaceSupport;
 
+import java.io.IOException;
+import java.io.UnsupportedEncodingException;
+import java.sql.SQLException;
+import java.util.ArrayList;
+import java.util.List;
+
 
 /**
  * This is the abstract adapter containing all the common elements between
@@ -398,6 +399,7 @@ public abstract class AbstractAdapter
         // be null if a handle has not yet been assigned. In this case refrence the
         // item its internal id. In the last case where the bitstream is not associated
         // with an item (such as a community logo) then refrence the bitstreamID directly.
+        /*
         String identifier = null;
         if (item != null && item.getExternalIdentifier().getCanonicalForm() != null)
         	identifier = "handle/"+item.getExternalIdentifier().getCanonicalForm();
@@ -408,6 +410,8 @@ public abstract class AbstractAdapter
         
         
         String url = contextPath + "/bitstream/"+identifier+"/";
+        */
+        String url = contextPath + IdentifierFactory.getURL(bitstream).toString();
         
         // If we can put the pretty name of the bitstream on the end of the URL
         try

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/objectmanager/ContainerAdapter.java

@@ -40,10 +40,6 @@
 
 package org.dspace.app.xmlui.objectmanager;
 
-import java.io.ByteArrayInputStream;
-import java.io.IOException;
-import java.sql.SQLException;
-
 import org.dspace.app.xmlui.wing.AttributeMap;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.authorize.AuthorizeException;
@@ -54,6 +50,7 @@ import org.dspace.content.DSpaceObject;
 import org.dspace.content.crosswalk.CrosswalkException;
 import org.dspace.content.crosswalk.DisseminationCrosswalk;
 import org.dspace.core.Constants;
+import org.dspace.uri.IdentifierFactory;
 import org.jdom.Document;
 import org.jdom.Element;
 import org.jdom.JDOMException;
@@ -61,6 +58,10 @@ import org.jdom.input.SAXBuilder;
 import org.jdom.output.SAXOutputter;
 import org.xml.sax.SAXException;
 
+import java.io.ByteArrayInputStream;
+import java.io.IOException;
+import java.sql.SQLException;
+
 /**
  * This is an adapter which translates DSpace containers 
  * (communities & collections) into METS documents. This adapter follows
@@ -123,9 +124,7 @@ public class ContainerAdapter extends AbstractAdapter
      */
     protected String getMETSOBJID()
     {
-    	if (dso.getExternalIdentifier() != null)
-    		return contextPath+"/handle/" + dso.getExternalIdentifier().getCanonicalForm();
-    	return null;
+    	return IdentifierFactory.getURL(dso).toString();
     }
 
     /**
@@ -141,15 +140,7 @@ public class ContainerAdapter extends AbstractAdapter
      */
     protected String getMETSID()
     {
-    	if (dso.getExternalIdentifier().getCanonicalForm() == null)
-    	{
-        	if (dso instanceof Collection)
-        		return "collection:"+dso.getID();
-        	else
-        		return "community:"+dso.getID();
-    	}
-        else
-        	return dso.getExternalIdentifier().getCanonicalForm();
+        return IdentifierFactory.getCanonicalForm(dso);
     }
 
     /**
@@ -270,7 +261,7 @@ public class ContainerAdapter extends AbstractAdapter
                 String description_abstract = collection.getMetadata("short_description");
                 String description_table = collection.getMetadata("side_bar_text");
                 // FIXME: Oh, so broken.
-                String identifier_uri = "http://hdl.handle.net/" + collection.getExternalIdentifier().getValue();
+                String identifier_uri = IdentifierFactory.getURL(collection).toString();
                 String provenance = collection.getMetadata("provenance_description");
                 String rights = collection.getMetadata("copyright_text");
                 String rights_license = collection.getMetadata("license");
@@ -293,7 +284,7 @@ public class ContainerAdapter extends AbstractAdapter
                 String description_abstract = community.getMetadata("short_description");
                 String description_table = community.getMetadata("side_bar_text");
                 // FIXME: Oh, so broken.
-                String identifier_uri = "http://hdl.handle.net/" + community.getExternalIdentifier().getValue();
+                String identifier_uri = IdentifierFactory.getURL(community).toString();
                 String rights = community.getMetadata("copyright_text");
                 String title = community.getMetadata("name");
                 

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/objectmanager/DSpaceObjectManager.java

@@ -40,10 +40,6 @@
 
 package org.dspace.app.xmlui.objectmanager;
 
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-
 import org.dspace.app.xmlui.wing.ObjectManager;
 import org.dspace.app.xmlui.wing.WingException;
 import org.dspace.content.Collection;
@@ -51,6 +47,11 @@ import org.dspace.content.Community;
 import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
 import org.dspace.core.ConfigurationManager;
+import org.dspace.uri.IdentifierFactory;
+
+import java.util.ArrayList;
+import java.util.HashMap;
+import java.util.List;
 
 
 /**
@@ -112,7 +113,8 @@ public class DSpaceObjectManager implements ObjectManager
 		if (object instanceof DSpaceObject)
 		{
 			DSpaceObject dso = (DSpaceObject) object;
-			String handle = dso.getExternalIdentifier().getCanonicalForm();
+            String handle = IdentifierFactory.getCanonicalForm(dso);
+            // String handle = dso.getExternalIdentifier().getCanonicalForm();
 			
 			// If the object has a handle then refrence it by it's handle.
 			if (handle != null)

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/objectmanager/ItemAdapter.java

@@ -50,6 +50,7 @@ import org.dspace.content.crosswalk.CrosswalkException;
 import org.dspace.content.crosswalk.DisseminationCrosswalk;
 import org.dspace.core.ConfigurationManager;
 import org.dspace.core.Constants;
+import org.dspace.uri.IdentifierFactory;
 import org.jdom.Element;
 import org.jdom.JDOMException;
 import org.jdom.output.SAXOutputter;
@@ -60,7 +61,6 @@ import org.xml.sax.helpers.XMLReaderFactory;
 
 import java.io.IOException;
 import java.io.InputStream;
-import java.net.URLEncoder;
 import java.sql.SQLException;
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -138,9 +138,7 @@ public class ItemAdapter extends AbstractAdapter
      */
     protected String getMETSOBJID()
     {
-    	if (item.getExternalIdentifier().getCanonicalForm() != null)
-    		return contextPath+"/handle/" + item.getExternalIdentifier().getCanonicalForm();
-    	return null;
+        return IdentifierFactory.getURL(item).toString();
     }
 
     /**
@@ -156,10 +154,7 @@ public class ItemAdapter extends AbstractAdapter
      */
     protected String getMETSID()
     {
-        if (item.getExternalIdentifier().getCanonicalForm() == null)
-        	return "item:"+item.getID();
-        else
-        	return item.getExternalIdentifier().getCanonicalForm();
+        return IdentifierFactory.getCanonicalForm(item);
     }
 
     /**

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/objectmanager/RepositoryAdapter.java

@@ -39,8 +39,6 @@
  */
 package org.dspace.app.xmlui.objectmanager;
 
-import java.sql.SQLException;
-
 import org.dspace.app.xmlui.wing.AttributeMap;
 import org.dspace.app.xmlui.wing.Namespace;
 import org.dspace.app.xmlui.wing.WingException;
@@ -50,8 +48,11 @@ import org.dspace.content.DSpaceObject;
 import org.dspace.core.ConfigurationManager;
 import org.dspace.core.Constants;
 import org.dspace.core.Context;
+import org.dspace.uri.IdentifierFactory;
 import org.xml.sax.SAXException;
 
+import java.sql.SQLException;
+
 /**
  * This is an an adapter which translates a DSpace repository into a METS 
  * document. Unfortunitaly there is no real definition of what this is. So
@@ -323,7 +324,7 @@ public class RepositoryAdapter extends AbstractAdapter
         attributesXLINK.setNamespace(XLINK);
         
         attributes.put("LOCTYPE", "URL");
-        attributesXLINK.put("href", "/metadata/handle/"+ dso.getExternalIdentifier().getCanonicalForm() +"/mets.xml");
+        attributesXLINK.put("href", "/metadata/handle/"+ IdentifierFactory.getCanonicalForm(dso) +"/mets.xml"); // FIXME this isn't right
         startElement(METS,"mptr",attributes,attributesXLINK);
         endElement(METS,"mptr");
         

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/utils/DSpaceValidity.java

@@ -40,9 +40,6 @@
 
 package org.dspace.app.xmlui.utils;
 
-import java.io.IOException;
-import java.sql.SQLException;
-
 import org.apache.cocoon.util.HashUtil;
 import org.apache.excalibur.source.SourceValidity;
 import org.dspace.content.Bitstream;
@@ -54,6 +51,10 @@ import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
 import org.dspace.eperson.EPerson;
 import org.dspace.eperson.Group;
+import org.dspace.uri.IdentifierFactory;
+
+import java.io.IOException;
+import java.sql.SQLException;
 
 /**
  * This is a validity object specificaly implemented for the caching 
@@ -262,7 +263,8 @@ public class DSpaceValidity implements SourceValidity
             Community community = (Community) dso;
 
             validityKey.append("Community:");
-            validityKey.append(community.getExternalIdentifier().getCanonicalForm());
+            validityKey.append(IdentifierFactory.getCanonicalForm(community));
+            // validityKey.append(community.getExternalIdentifier().getCanonicalForm());
             validityKey.append(community.getMetadata("introductory_text"));
             validityKey.append(community.getMetadata("short_description"));
             validityKey.append(community.getMetadata("side_bar_text"));
@@ -278,7 +280,8 @@ public class DSpaceValidity implements SourceValidity
             Collection collection = (Collection) dso;
             
             validityKey.append("Collection:");
-            validityKey.append(collection.getExternalIdentifier().getCanonicalForm());
+            validityKey.append(IdentifierFactory.getCanonicalForm(collection));
+            // validityKey.append(collection.getExternalIdentifier().getCanonicalForm());
             validityKey.append(collection.getMetadata("introductory_text"));
             validityKey.append(collection.getMetadata("short_description"));
             validityKey.append(collection.getMetadata("side_bar_text"));
@@ -296,7 +299,8 @@ public class DSpaceValidity implements SourceValidity
             Item item = (Item) dso;
             
             validityKey.append("Item:");
-            validityKey.append(item.getExternalIdentifier().getCanonicalForm());
+            validityKey.append(IdentifierFactory.getCanonicalForm(item));
+            //validityKey.append(item.getExternalIdentifier().getCanonicalForm());
             // Include all metadata values in the validity key.
             DCValue[] dcvs = item.getDC(Item.ANY,Item.ANY,Item.ANY);
             for (DCValue dcv : dcvs)

dspace-xmlui/dspace-xmlui-api/src/main/java/org/dspace/app/xmlui/utils/HandleUtil.java

@@ -53,9 +53,8 @@ import org.dspace.content.Collection;
 import org.dspace.content.Community;
 import org.dspace.content.DSpaceObject;
 import org.dspace.content.Item;
-import org.dspace.uri.ExternalIdentifier;
-import org.dspace.uri.dao.ExternalIdentifierDAO;
-import org.dspace.uri.dao.ExternalIdentifierDAOFactory;
+import org.dspace.uri.ResolvableIdentifier;
+import org.dspace.uri.IdentifierFactory;
 import org.dspace.core.Constants;
 import org.dspace.core.Context;
 
@@ -112,10 +111,13 @@ public class HandleUtil
 
             Context context = ContextUtil.obtainContext(objectModel);
 //            dso = HandleManager.resolveToObject(context, handle);
+            /*
             ExternalIdentifierDAO dao =
                 ExternalIdentifierDAOFactory.getInstance(context);
             ExternalIdentifier identifier = dao.retrieve(handle);
-            dso = identifier.getObjectIdentifier().getObject(context);
+            dso = identifier.getObjectIdentifier().getObject(context);*/
+            ResolvableIdentifier ri = IdentifierFactory.resolve(context, handle);
+            dso = ri.getObject(context);
 
             request.setAttribute(DSPACE_OBJECT, dso);
         }

dspace/config/dspace.cfg

@@ -256,6 +256,39 @@ plugin.sequence.org.dspace.uri.IdentifierResolver = \
 #
 identifier.url-scheme = hdl
 
+# where should we store the actual uuid of the item?
+#
+indentifier.metadata.canonical-field.internal = dc.identifier.uuid
+
+# Should we store the full resolvable url of the item in the repository in
+# its metadata?  Since the local service URL may not be persistent, this may
+# not be appropriate, but if no external resolving service is available and
+# you make a commitment to always resolving this url, or updating it for
+# each item if it changes, then this can safely be set to true
+#
+identifier.metadata.store-url.internal = false
+
+# If we are storing the full resolvable url of the item, where should we put it?
+#
+identifier.metadata.url-field.internal = dc.identifier.url
+
+# Equivalent settings for external identifiers.
+#
+# Where should we store the canonical and url forms of the external identifiers
+# associated with the item
+#
+# The form of these declarations is as follows, in order to work with the plugin
+# framework for external identifiers:
+#
+# identifier.metadata.canonical-field.[identifier namespace] = [metadata field]
+# identifier.metadata.url-field.[identifier namespace] = [metadata field]
+#
+# you should include additonal configuration for every external identifier
+# plugin added
+#
+identifier.metadata.canonical-field.hdl = dc.identifier.hdl
+identifier.metadata.url-field.hdl = dc.identifier.url
+
 ##### Handle settings ######
 
 # CNRI Handle prefix