Attachment 140694 Details for Bug 282269 – Addition of an extension point

[patch] Addition of an extension point

282269.patch2 (text/plain), 28.27 KB, created by Rob Stryker

on 2009-07-02 09:32:14 EDT

(hide)

Description:

Filename:

MIME Type:

Creator: Rob Stryker

Created: 2009-07-02 09:32:14 EDT

Size: 28.27 KB

patch

obsolete

>### Eclipse Workspace Patch 1.0
>#P org.eclipse.wst.common.modulecore
>Index: plugin.xml
>===================================================================
>RCS file: /cvsroot/webtools/common/plugins/org.eclipse.wst.common.modulecore/plugin.xml,v
>retrieving revision 1.36
>diff -u -r1.36 plugin.xml
>--- plugin.xml	9 Jun 2008 19:51:14 -0000	1.36
>+++ plugin.xml	2 Jul 2009 13:27:33 -0000
>@@ -55,6 +55,7 @@
> 	<extension-point id="artifactedit" name="Component Artifact Edit" schema="schema/artifactedit.exsd"/>
>     <extension-point id="componentimpl" name="componentimpl" schema="schema/componentimpl.exsd"/>
> 	<extension-point id="resourceFactories" name="Resource Factory Association (Internal)" schema="schema/resourceFactories.exsd"/>
>+ <extension-point id="referenceResolver" name="referenceResolver" schema="schema/referenceResolver.exsd"/>
> 	
> 	
> 	<extension point="org.eclipse.wst.common.uriresolver.resolverExtensions">
>Index: modulecore-src/org/eclipse/wst/common/componentcore/internal/resources/VirtualReference.java
>===================================================================
>RCS file: /cvsroot/webtools/common/plugins/org.eclipse.wst.common.modulecore/modulecore-src/org/eclipse/wst/common/componentcore/internal/resources/VirtualReference.java,v
>retrieving revision 1.9
>diff -u -r1.9 VirtualReference.java
>--- modulecore-src/org/eclipse/wst/common/componentcore/internal/resources/VirtualReference.java	7 Jun 2007 19:29:10 -0000	1.9
>+++ modulecore-src/org/eclipse/wst/common/componentcore/internal/resources/VirtualReference.java	2 Jul 2009 13:27:34 -0000
>@@ -16,13 +16,13 @@
> import org.eclipse.core.runtime.IProgressMonitor;
> import org.eclipse.core.runtime.NullProgressMonitor;
> import org.eclipse.core.runtime.Path;
>+import org.eclipse.emf.common.util.URI;
> import org.eclipse.emf.ecore.EObject;
>-import org.eclipse.wst.common.componentcore.internal.ComponentcorePackage;
>-import org.eclipse.wst.common.componentcore.internal.DependencyType;
> import org.eclipse.wst.common.componentcore.internal.ReferencedComponent;
> import org.eclipse.wst.common.componentcore.internal.StructureEdit;
> import org.eclipse.wst.common.componentcore.internal.WorkbenchComponent;
>-import org.eclipse.wst.common.componentcore.internal.impl.ModuleURIUtil;
>+import org.eclipse.wst.common.componentcore.resolvers.IReferenceResolver;
>+import org.eclipse.wst.common.componentcore.resolvers.ReferenceResolverUtil;
> import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
> import org.eclipse.wst.common.componentcore.resources.IVirtualReference;
> 
>@@ -59,14 +59,8 @@
> 			core = StructureEdit.getStructureEditForWrite(enclosingComponent.getProject());
> 			WorkbenchComponent component = core.getComponent();
> 			List referencedComponents = component.getReferencedComponents();
>-			ReferencedComponent refComp = ComponentcorePackage.eINSTANCE.getComponentcoreFactory().createReferencedComponent();
>-			if( !referencedComponent.isBinary())
>-				refComp.setHandle(ModuleURIUtil.fullyQualifyURI(referencedComponent.getProject()));
>-			else
>-				refComp.setHandle(ModuleURIUtil.archiveComponentfullyQualifyURI(referencedComponent.getName())); 
>-			refComp.setRuntimePath(runtimePath);
>-			refComp.setDependencyType(DependencyType.get(dependencyType));
>-			refComp.setArchiveName(archiveName);
>+			IReferenceResolver resolver = ReferenceResolverUtil.getDefault().getResolver(this);
>+			ReferencedComponent refComp = resolver.resolve(this);
> 			if(!referencedComponents.contains(refComp)){
> 				referencedComponents.add(refComp);
> 			}
>@@ -123,10 +117,9 @@
> 			ReferencedComponent actualReferencedComponent = enclosingCore.findReferencedComponent(enclosingComp, refComp);
> 			if (actualReferencedComponent != null) {
> 				referencedComponent = aReferencedComponent;
>-				if(!referencedComponent.isBinary())
>-					actualReferencedComponent.setHandle(ModuleURIUtil.fullyQualifyURI(referencedComponent.getProject()));
>-				else
>-					actualReferencedComponent.setHandle(ModuleURIUtil.archiveComponentfullyQualifyURI(referencedComponent.getName()));
>+				IReferenceResolver resolver = ReferenceResolverUtil.getDefault().getResolver(this);
>+				URI uri = resolver.resolve(this).getHandle();
>+				actualReferencedComponent.setHandle(uri);
> 				actualReferencedComponent.setDependentObject(dependentObject);
> 			}
> 		} finally {
>Index: modulecore-src/org/eclipse/wst/common/componentcore/internal/resources/VirtualComponent.java
>===================================================================
>RCS file: /cvsroot/webtools/common/plugins/org.eclipse.wst.common.modulecore/modulecore-src/org/eclipse/wst/common/componentcore/internal/resources/VirtualComponent.java,v
>retrieving revision 1.62
>diff -u -r1.62 VirtualComponent.java
>--- modulecore-src/org/eclipse/wst/common/componentcore/internal/resources/VirtualComponent.java	4 Sep 2008 05:47:27 -0000	1.62
>+++ modulecore-src/org/eclipse/wst/common/componentcore/internal/resources/VirtualComponent.java	2 Jul 2009 13:27:34 -0000
>@@ -16,6 +16,7 @@
> import java.util.List;
> import java.util.Map;
> import java.util.Properties;
>+import java.util.Set;
> 
> import org.eclipse.core.resources.IProject;
> import org.eclipse.core.runtime.CoreException;
>@@ -24,18 +25,19 @@
> import org.eclipse.core.runtime.IStatus;
> import org.eclipse.core.runtime.Path;
> import org.eclipse.core.runtime.Platform;
>+import org.eclipse.emf.common.util.URI;
> import org.eclipse.wst.common.componentcore.ComponentCore;
> import org.eclipse.wst.common.componentcore.ModuleCoreNature;
> import org.eclipse.wst.common.componentcore.internal.ComponentcoreFactory;
> import org.eclipse.wst.common.componentcore.internal.ComponentcorePackage;
>-import org.eclipse.wst.common.componentcore.internal.DependencyType;
> import org.eclipse.wst.common.componentcore.internal.ModulecorePlugin;
> import org.eclipse.wst.common.componentcore.internal.Property;
> import org.eclipse.wst.common.componentcore.internal.ReferencedComponent;
> import org.eclipse.wst.common.componentcore.internal.StructureEdit;
> import org.eclipse.wst.common.componentcore.internal.WorkbenchComponent;
>-import org.eclipse.wst.common.componentcore.internal.builder.DependencyGraphManager;
>-import org.eclipse.wst.common.componentcore.internal.impl.ModuleURIUtil;
>+import org.eclipse.wst.common.componentcore.internal.builder.IDependencyGraph;
>+import org.eclipse.wst.common.componentcore.resolvers.IReferenceResolver;
>+import org.eclipse.wst.common.componentcore.resolvers.ReferenceResolverUtil;
> import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
> import org.eclipse.wst.common.componentcore.resources.IVirtualFolder;
> import org.eclipse.wst.common.componentcore.resources.IVirtualReference;
>@@ -286,9 +288,6 @@
> 						if (referencedComponent==null) 
> 							continue;
> 						IVirtualReference vReference = StructureEdit.createVirtualReference(this, referencedComponent);
>-						if( vReference != null ){
>-							vReference.setArchiveName( referencedComponent.getArchiveName() );
>-						}
> 						if (vReference != null && vReference.getReferencedComponent() != null && vReference.getReferencedComponent().exists())
> 							references.add(vReference); 
> 					}
>@@ -312,21 +311,14 @@
> 			WorkbenchComponent component = core.getComponent();
> 			ReferencedComponent referencedComponent = null;
> 			ComponentcoreFactory factory = ComponentcorePackage.eINSTANCE.getComponentcoreFactory();
>+			IReferenceResolver resolver = null;
> 			for (int i=0; i<references.length; i++) {
> 				if (references[i] == null)
> 					continue;
>-				referencedComponent = factory.createReferencedComponent();				
>-				referencedComponent.setDependencyType(DependencyType.get(references[i].getDependencyType()));
>-				referencedComponent.setRuntimePath(references[i].getRuntimePath());
>-
>-				IVirtualComponent comp = references[i].getReferencedComponent();
>-				if(comp!=null && !comp.isBinary())
>-					referencedComponent.setHandle(ModuleURIUtil.fullyQualifyURI(comp.getProject()));
>-				else if (comp!=null)
>-					referencedComponent.setHandle(ModuleURIUtil.archiveComponentfullyQualifyURI(comp.getName()));
>+				resolver = ReferenceResolverUtil.getDefault().getResolver(references[i]);
>+				referencedComponent = resolver.resolve(references[i]);
> 				if (component != null)
> 					component.getReferencedComponents().add(referencedComponent);
>-				referencedComponent.setArchiveName(references[i].getArchiveName());
> 			}
> 			//clean up any old obsolete references
> 			if (component != null){
>@@ -362,19 +354,12 @@
> 			  
> 			component.getReferencedComponents().clear();
> 			ComponentcoreFactory factory = ComponentcorePackage.eINSTANCE.getComponentcoreFactory();
>+			IReferenceResolver resolver = null;
> 			for (int i=0; i<references.length; i++) {
>-				referencedComponent = factory.createReferencedComponent();				
>-				referencedComponent.setDependencyType(DependencyType.get(references[i].getDependencyType()));
>-				referencedComponent.setRuntimePath(references[i].getRuntimePath());
>-
>-				IVirtualComponent comp = references[i].getReferencedComponent();
>-				if( !comp.isBinary())
>-					referencedComponent.setHandle(ModuleURIUtil.fullyQualifyURI(references[i].getReferencedComponent().getProject()));
>-				else
>-					referencedComponent.setHandle(ModuleURIUtil.archiveComponentfullyQualifyURI(references[i].getReferencedComponent().getName()));
>-				
>-				referencedComponent.setArchiveName(references[i].getArchiveName());
>-				component.getReferencedComponents().add(referencedComponent);
>+				resolver = ReferenceResolverUtil.getDefault().getResolver(references[i]);
>+				referencedComponent = resolver.resolve(references[i]);
>+				if( referencedComponent != null)
>+					component.getReferencedComponents().add(referencedComponent);
> 			}
> 			 
> 		} finally {
>@@ -434,10 +419,11 @@
> 	 * @return array of components
> 	 */
> 	public IVirtualComponent[] getReferencingComponents() {
>-		IProject[] handles =  DependencyGraphManager.getInstance().getDependencyGraph().getReferencingComponents(getProject());
>-		IVirtualComponent[] result = new IVirtualComponent[handles.length];
>-		for (int i=0; i<handles.length; i++)
>-			result[i] = ComponentCore.createComponent(handles[i]);
>+		Set<IProject> projects = IDependencyGraph.INSTANCE.getReferencingComponents(getProject());
>+		IVirtualComponent[] result = new IVirtualComponent[projects.size()];
>+		Iterator<IProject> i = projects.iterator();
>+		for (int j=0; j<projects.size(); j++)
>+			result[j] = ComponentCore.createComponent(i.next());
> 		return result;
> 	}
> 	
>@@ -477,16 +463,11 @@
> 		if (aReference == null || aReference.getReferencedComponent() == null || component == null)
> 			return null;
> 		List referencedComponents = component.getReferencedComponents();
>+		URI uri = ReferenceResolverUtil.getDefault().getResolver(aReference).resolve(aReference).getHandle(); 
> 		for (int i=0; i<referencedComponents.size(); i++) {
> 			ReferencedComponent ref = (ReferencedComponent) referencedComponents.get(i);
>-			if (!aReference.getReferencedComponent().isBinary()) {
>-				if (ref.getHandle().equals(ModuleURIUtil.fullyQualifyURI(aReference.getReferencedComponent().getProject())))
>-					return ref;	
>-			} 
>-			else {
>-				if (ref.getHandle().equals(ModuleURIUtil.archiveComponentfullyQualifyURI(aReference.getReferencedComponent().getName())))
>-					return ref;
>-			}	
>+			if( ref.getHandle().equals(uri))
>+				return ref;
> 		}
> 		return null;
> 	}
>Index: modulecore-src/org/eclipse/wst/common/componentcore/internal/StructureEdit.java
>===================================================================
>RCS file: /cvsroot/webtools/common/plugins/org.eclipse.wst.common.modulecore/modulecore-src/org/eclipse/wst/common/componentcore/internal/StructureEdit.java,v
>retrieving revision 1.43
>diff -u -r1.43 StructureEdit.java
>--- modulecore-src/org/eclipse/wst/common/componentcore/internal/StructureEdit.java	9 Mar 2009 17:11:52 -0000	1.43
>+++ modulecore-src/org/eclipse/wst/common/componentcore/internal/StructureEdit.java	2 Jul 2009 13:27:34 -0000
>@@ -33,15 +33,14 @@
> import org.eclipse.emf.common.util.URI;
> import org.eclipse.jem.util.UIContextDetermination;
> import org.eclipse.jem.util.emf.workbench.ProjectUtilities;
>-import org.eclipse.wst.common.componentcore.ComponentCore;
> import org.eclipse.wst.common.componentcore.IEditModelHandler;
> import org.eclipse.wst.common.componentcore.ModuleCoreNature;
> import org.eclipse.wst.common.componentcore.UnresolveableURIException;
> import org.eclipse.wst.common.componentcore.internal.impl.ModuleURIUtil;
>-import org.eclipse.wst.common.componentcore.internal.impl.PlatformURLModuleConnection;
> import org.eclipse.wst.common.componentcore.internal.impl.ResourceTreeNode;
>-import org.eclipse.wst.common.componentcore.internal.resources.VirtualReference;
> import org.eclipse.wst.common.componentcore.internal.util.EclipseResourceAdapter;
>+import org.eclipse.wst.common.componentcore.resolvers.IReferenceResolver;
>+import org.eclipse.wst.common.componentcore.resolvers.ReferenceResolverUtil;
> import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
> import org.eclipse.wst.common.componentcore.resources.IVirtualReference;
> import org.eclipse.wst.common.internal.emf.utilities.ExtendedEcoreUtil;
>@@ -283,38 +282,9 @@
> 		return componentType;
> 	}
> 
>-	public static IVirtualReference createVirtualReference(IVirtualComponent context, ReferencedComponent referencedComponent) {
>-
>-		IVirtualComponent targetComponent = null;
>-		IProject targetProject = null;
>-		URI uri = referencedComponent.getHandle();
>-		if (uri == null)
>-			return null;
>-		boolean isClassPathURI = ModuleURIUtil.isClassPathURI(uri);
>-		if( !isClassPathURI ){
>-			try { 
>-				targetProject = StructureEdit.getContainingProject(uri);
>-			} catch(UnresolveableURIException uurie) {
>-				//Ignore
>-			} 
>-			// if the project cannot be resolved, assume it's local - really it probably deleted 
>-			
>-			targetComponent = ComponentCore.createComponent(targetProject);  
>-				
>-
>-		}else{
>-			String archiveType = ""; //$NON-NLS-1$
>-			String archiveName = ""; //$NON-NLS-1$
>-			try {
>-				archiveType = ModuleURIUtil.getArchiveType(uri);
>-				archiveName = ModuleURIUtil.getArchiveName(uri);
>-				
>-			} catch (UnresolveableURIException e) {
>-				//Ignore
>-			}
>-			targetComponent = ComponentCore.createArchiveComponent(context.getProject(), archiveType + IPath.SEPARATOR + archiveName ); 
>-		}
>-		return new VirtualReference(context, targetComponent, referencedComponent.getRuntimePath(), referencedComponent.getDependencyType().getValue());
>+	public static IVirtualReference createVirtualReference(IVirtualComponent context, ReferencedComponent reference) {
>+		IReferenceResolver resolver = ReferenceResolverUtil.getDefault().getResolver(context, reference);
>+		return resolver.resolve(context, reference);
> 	}
> 
> 	protected StructureEdit(ModuleCoreNature aNature, boolean toAccessAsReadOnly) {
>@@ -950,9 +920,8 @@
> 	}
> 
> 	public static URI createComponentURI(IProject aContainingProject, String aComponentName) {
>-		return URI.createURI(PlatformURLModuleConnection.MODULE_PROTOCOL + IPath.SEPARATOR + PlatformURLModuleConnection.RESOURCE_MODULE + aContainingProject.getName() + IPath.SEPARATOR + aComponentName);
>+		return ModuleURIUtil.fullyQualifyURI(aContainingProject, aComponentName);
> 	}
>-
> 	
> 	protected IProject getProject() {
> 		return aProject;
>Index: modulecore-src/org/eclipse/wst/common/componentcore/resolvers/ReferenceResolverUtil.java
>===================================================================
>RCS file: modulecore-src/org/eclipse/wst/common/componentcore/resolvers/ReferenceResolverUtil.java
>diff -N modulecore-src/org/eclipse/wst/common/componentcore/resolvers/ReferenceResolverUtil.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ modulecore-src/org/eclipse/wst/common/componentcore/resolvers/ReferenceResolverUtil.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,124 @@
>+package org.eclipse.wst.common.componentcore.resolvers;
>+
>+import java.util.ArrayList;
>+import java.util.Collections;
>+import java.util.Comparator;
>+import java.util.HashMap;
>+import java.util.Iterator;
>+import java.util.List;
>+
>+import org.eclipse.core.runtime.CoreException;
>+import org.eclipse.core.runtime.IConfigurationElement;
>+import org.eclipse.core.runtime.IExtensionRegistry;
>+import org.eclipse.core.runtime.Platform;
>+import org.eclipse.wst.common.componentcore.internal.ModulecorePlugin;
>+import org.eclipse.wst.common.componentcore.internal.ReferencedComponent;
>+import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
>+import org.eclipse.wst.common.componentcore.resources.IVirtualReference;
>+
>+public class ReferenceResolverUtil {
>+	public static ReferenceResolverUtil instance = null;
>+	public static ReferenceResolverUtil getDefault() {
>+		if( instance == null )
>+			instance = new ReferenceResolverUtil();
>+		return instance;
>+	}
>+	
>+	private HashMap<String, ReferenceResolverWrapper> resolvers = null;
>+	private ArrayList<IReferenceResolver> sorted = null;
>+	private DefaultReferenceResolver defaultResolver = new DefaultReferenceResolver();
>+	public IReferenceResolver[] getResolvers() {
>+		if( resolvers == null )
>+			loadResolvers();
>+		return (IReferenceResolver[]) sorted.toArray(new IReferenceResolver[sorted.size()]);
>+	}
>+	
>+	public IReferenceResolver getResolver(IVirtualComponent context, ReferencedComponent reference) {
>+		getResolvers();
>+		Iterator<IReferenceResolver> i = sorted.iterator();
>+		IReferenceResolver resolver;
>+		while(i.hasNext()) {
>+			resolver = i.next();
>+			if( resolver.canResolve(context, reference))
>+				return resolver;
>+		}
>+		return defaultResolver;
>+	}
>+	
>+	public IReferenceResolver getResolver(IVirtualReference reference) {
>+		Iterator<IReferenceResolver> i = sorted.iterator();
>+		IReferenceResolver resolver;
>+		while(i.hasNext()) {
>+			resolver = i.next();
>+			if( resolver.canResolve(reference))
>+				return resolver;
>+		}
>+		return defaultResolver;
>+	}
>+	
>+	protected void loadResolvers() {
>+		HashMap<String, ReferenceResolverWrapper> map = new HashMap<String, ReferenceResolverWrapper>();
>+		
>+		IExtensionRegistry registry = Platform.getExtensionRegistry();
>+		IConfigurationElement[] cf = registry.getConfigurationElementsFor(ModulecorePlugin.PLUGIN_ID, "referenceResolver"); //$NON-NLS-1$
>+		String id = null;
>+		for( int j = 0; j < cf.length; j++ ) {
>+			id = cf[j].getAttribute("id");
>+			try {
>+				map.put(id, new ReferenceResolverWrapper(
>+						id, (IReferenceResolver)
>+							cf[j].createExecutableExtension("class"),
>+						cf[j].getAttribute("weight")));
>+			} catch( CoreException ce ) {
>+				// TODO figure it out
>+			}
>+		}
>+		resolvers = map;
>+		
>+		// Cache the sorted ones
>+		List<ReferenceResolverWrapper> list = new ArrayList(resolvers.values());
>+		Comparator comparator = new Comparator() { 
>+			public int compare(Object o1, Object o2) {
>+				if( !(o1 instanceof ReferenceResolverWrapper))
>+					return -1;
>+				if( !(o2 instanceof ReferenceResolverWrapper))
>+					return 1;
>+				return ((ReferenceResolverWrapper)o2).getWeight()
>+				 	- ((ReferenceResolverWrapper)o1).getWeight();
>+			}
>+		};
>+		
>+		Collections.sort(list, comparator);
>+		ArrayList<IReferenceResolver> sorted = new ArrayList<IReferenceResolver>();
>+		Iterator i = list.iterator();
>+		while(i.hasNext())
>+			sorted.add(((ReferenceResolverWrapper)i.next()).getResolver());
>+		this.sorted = sorted;
>+	}
>+	
>+	
>+	protected class ReferenceResolverWrapper {
>+		private String id;
>+		private IReferenceResolver resolver;
>+		private int weight;
>+		public ReferenceResolverWrapper(String id, IReferenceResolver resolver, String weight) {
>+			this.id = id;
>+			this.resolver = resolver;
>+			try {
>+				this.weight = Integer.parseInt(weight);
>+			} catch( NumberFormatException nfe) {
>+				this.weight = 1000;
>+			}
>+		}
>+		public int getWeight() {
>+			return weight;
>+		}
>+		public String getId() {
>+			return id;
>+		}
>+		public IReferenceResolver getResolver() {
>+			return resolver;
>+		}
>+	}
>+	
>+}
>Index: modulecore-src/org/eclipse/wst/common/componentcore/resolvers/DefaultReferenceResolver.java
>===================================================================
>RCS file: modulecore-src/org/eclipse/wst/common/componentcore/resolvers/DefaultReferenceResolver.java
>diff -N modulecore-src/org/eclipse/wst/common/componentcore/resolvers/DefaultReferenceResolver.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ modulecore-src/org/eclipse/wst/common/componentcore/resolvers/DefaultReferenceResolver.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,81 @@
>+package org.eclipse.wst.common.componentcore.resolvers;
>+
>+import org.eclipse.core.resources.IProject;
>+import org.eclipse.core.runtime.IPath;
>+import org.eclipse.emf.common.util.URI;
>+import org.eclipse.wst.common.componentcore.ComponentCore;
>+import org.eclipse.wst.common.componentcore.UnresolveableURIException;
>+import org.eclipse.wst.common.componentcore.internal.ComponentcorePackage;
>+import org.eclipse.wst.common.componentcore.internal.DependencyType;
>+import org.eclipse.wst.common.componentcore.internal.ReferencedComponent;
>+import org.eclipse.wst.common.componentcore.internal.StructureEdit;
>+import org.eclipse.wst.common.componentcore.internal.impl.ModuleURIUtil;
>+import org.eclipse.wst.common.componentcore.internal.resources.VirtualReference;
>+import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
>+import org.eclipse.wst.common.componentcore.resources.IVirtualReference;
>+
>+public class DefaultReferenceResolver implements IReferenceResolver {
>+	// Does not need to implement, 
>+	// default is always called as last resort
>+	public boolean canResolve(IVirtualComponent context,
>+			ReferencedComponent referencedComponent) {
>+		return false;
>+	}
>+
>+	// Does not need to implement, 
>+	// default is always called as last resort
>+	public boolean canResolve(IVirtualReference reference) {
>+		return false;
>+	}
>+
>+	public IVirtualReference resolve(IVirtualComponent context,
>+			ReferencedComponent referencedComponent) {
>+		IVirtualComponent targetComponent = null;
>+		IProject targetProject = null;
>+		URI uri = referencedComponent.getHandle();
>+		if (uri == null)
>+			return null;
>+		boolean isClassPathURI = ModuleURIUtil.isClassPathURI(uri);
>+		if( !isClassPathURI ){
>+			try { 
>+				targetProject = StructureEdit.getContainingProject(uri);
>+			} catch(UnresolveableURIException uurie) {
>+				//Ignore
>+			} 
>+			// if the project cannot be resolved, assume it's local - really it probably deleted 
>+			
>+			targetComponent = ComponentCore.createComponent(targetProject);  
>+				
>+
>+		}else{
>+			String archiveType = ""; //$NON-NLS-1$
>+			String archiveName = ""; //$NON-NLS-1$
>+			try {
>+				archiveType = ModuleURIUtil.getArchiveType(uri);
>+				archiveName = ModuleURIUtil.getArchiveName(uri);
>+				
>+			} catch (UnresolveableURIException e) {
>+				//Ignore
>+			}
>+			targetComponent = ComponentCore.createArchiveComponent(context.getProject(), archiveType + IPath.SEPARATOR + archiveName ); 
>+		}
>+		return new VirtualReference(context, targetComponent, referencedComponent.getRuntimePath(), referencedComponent.getDependencyType().getValue());
>+	}
>+
>+	public ReferencedComponent resolve(IVirtualReference reference) {
>+		IVirtualComponent referencedComponent = reference.getReferencedComponent();
>+		ReferencedComponent refComp = ComponentcorePackage.eINSTANCE.getComponentcoreFactory().createReferencedComponent();
>+		refComp.setRuntimePath(reference.getRuntimePath());
>+		refComp.setDependencyType(DependencyType.get(reference.getDependencyType()));
>+		refComp.setArchiveName(reference.getArchiveName());
>+		if( referencedComponent != null ) {
>+			if( !referencedComponent.isBinary())
>+				refComp.setHandle(ModuleURIUtil.fullyQualifyURI(referencedComponent.getProject()));
>+			else
>+				refComp.setHandle(ModuleURIUtil.archiveComponentfullyQualifyURI(referencedComponent.getName())); 
>+		}
>+		return refComp;
>+	}
>+
>+
>+}
>Index: modulecore-src/org/eclipse/wst/common/componentcore/resolvers/IReferenceResolver.java
>===================================================================
>RCS file: modulecore-src/org/eclipse/wst/common/componentcore/resolvers/IReferenceResolver.java
>diff -N modulecore-src/org/eclipse/wst/common/componentcore/resolvers/IReferenceResolver.java
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ modulecore-src/org/eclipse/wst/common/componentcore/resolvers/IReferenceResolver.java	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,12 @@
>+package org.eclipse.wst.common.componentcore.resolvers;
>+
>+import org.eclipse.wst.common.componentcore.internal.ReferencedComponent;
>+import org.eclipse.wst.common.componentcore.resources.IVirtualComponent;
>+import org.eclipse.wst.common.componentcore.resources.IVirtualReference;
>+
>+public interface IReferenceResolver {
>+	public boolean canResolve(IVirtualComponent context, ReferencedComponent referencedComponent);
>+	public IVirtualReference resolve(IVirtualComponent context, ReferencedComponent referencedComponent);
>+	public boolean canResolve(IVirtualReference reference);
>+	public ReferencedComponent resolve(IVirtualReference reference);
>+}
>Index: schema/referenceResolver.exsd
>===================================================================
>RCS file: schema/referenceResolver.exsd
>diff -N schema/referenceResolver.exsd
>--- /dev/null	1 Jan 1970 00:00:00 -0000
>+++ schema/referenceResolver.exsd	1 Jan 1970 00:00:00 -0000
>@@ -0,0 +1,116 @@
>+<?xml version='1.0' encoding='UTF-8'?>
>+
>+<schema targetNamespace="org.eclipse.wst.common.modulecore" xmlns="http://www.w3.org/2001/XMLSchema">
>+<annotation>
>+      <appInfo>
>+         <meta.schema plugin="org.eclipse.wst.common.modulecore" id="referenceResolver" name="referenceResolver"/>
>+      </appInfo>
>+      <documentation>
>+         [Enter description of this extension point.]
>+      </documentation>
>+   </annotation>
>+
>+   <element name="extension">
>+      <annotation>
>+         <appInfo>
>+            <meta.element />
>+         </appInfo>
>+      </annotation>
>+      <complexType>
>+         <sequence minOccurs="1" maxOccurs="unbounded">
>+            <element ref="resolver"/>
>+         </sequence>
>+         <attribute name="point" type="string" use="required">
>+            <annotation>
>+               <documentation>
>+                  
>+               </documentation>
>+            </annotation>
>+         </attribute>
>+         <attribute name="id" type="string">
>+            <annotation>
>+               <documentation>
>+                  
>+               </documentation>
>+            </annotation>
>+         </attribute>
>+         <attribute name="name" type="string">
>+            <annotation>
>+               <documentation>
>+                  
>+               </documentation>
>+               <appInfo>
>+                  <meta.attribute translatable="true"/>
>+               </appInfo>
>+            </annotation>
>+         </attribute>
>+      </complexType>
>+   </element>
>+
>+   <element name="resolver">
>+      <complexType>
>+         <attribute name="id" type="string" use="required">
>+            <annotation>
>+               <documentation>
>+                  A required id which can be used to reference this resolver
>+               </documentation>
>+            </annotation>
>+         </attribute>
>+         <attribute name="class" type="string" use="required">
>+            <annotation>
>+               <documentation>
>+                  The implementation class of this extension
>+               </documentation>
>+               <appInfo>
>+                  <meta.attribute kind="java" basedOn=":org.eclipse.wst.common.componentcore.resolvers.IReferenceResolver"/>
>+               </appInfo>
>+            </annotation>
>+         </attribute>
>+         <attribute name="weight" type="string">
>+            <annotation>
>+               <documentation>
>+                  The weight used for sorting the resolvers. Lighter weights float to the top and are tried first.
>+               </documentation>
>+            </annotation>
>+         </attribute>
>+      </complexType>
>+   </element>
>+
>+   <annotation>
>+      <appInfo>
>+         <meta.section type="since"/>
>+      </appInfo>
>+      <documentation>
>+         [Enter the first release in which this extension point appears.]
>+      </documentation>
>+   </annotation>
>+
>+   <annotation>
>+      <appInfo>
>+         <meta.section type="examples"/>
>+      </appInfo>
>+      <documentation>
>+         [Enter extension point usage example here.]
>+      </documentation>
>+   </annotation>
>+
>+   <annotation>
>+      <appInfo>
>+         <meta.section type="apiinfo"/>
>+      </appInfo>
>+      <documentation>
>+         [Enter API information here.]
>+      </documentation>
>+   </annotation>
>+
>+   <annotation>
>+      <appInfo>
>+         <meta.section type="implementation"/>
>+      </appInfo>
>+      <documentation>
>+         [Enter information about supplied implementation of this extension point.]
>+      </documentation>
>+   </annotation>
>+
>+
>+</schema>

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Attachments on bug 282269: 140678 | 140694 | 148568