1 files changed, 1124 insertions, 1124 deletions
diff --git a/examples/others/org.eclipse.papyrus.example.diagram.simplediagram/src/org/eclipse/papyrus/example/diagram/simplediagram/part/UMLDocumentProvider.java b/examples/others/org.eclipse.papyrus.example.diagram.simplediagram/src/org/eclipse/papyrus/example/diagram/simplediagram/part/UMLDocumentProvider.java
index b35c429b2d1..ce436755b6b 100644
--- a/examples/others/org.eclipse.papyrus.example.diagram.simplediagram/src/org/eclipse/papyrus/example/diagram/simplediagram/part/UMLDocumentProvider.java
+++ b/examples/others/org.eclipse.papyrus.example.diagram.simplediagram/src/org/eclipse/papyrus/example/diagram/simplediagram/part/UMLDocumentProvider.java
@@ -1,1124 +1,1124 @@
-package org.eclipse.papyrus.example.diagram.simplediagram.part;
-
-import java.io.IOException;
-import java.util.ArrayList;
-import java.util.Collections;
-import java.util.HashMap;
-import java.util.Iterator;
-import java.util.LinkedList;
-import java.util.List;
-import java.util.Map;
-
-import org.eclipse.core.commands.ExecutionException;
-import org.eclipse.core.resources.IFile;
-import org.eclipse.core.resources.IResource;
-import org.eclipse.core.resources.IResourceStatus;
-import org.eclipse.core.resources.IStorage;
-import org.eclipse.core.resources.ResourcesPlugin;
-import org.eclipse.core.runtime.CoreException;
-import org.eclipse.core.runtime.IAdaptable;
-import org.eclipse.core.runtime.IProgressMonitor;
-import org.eclipse.core.runtime.IStatus;
-import org.eclipse.core.runtime.Path;
-import org.eclipse.core.runtime.Status;
-import org.eclipse.core.runtime.jobs.ISchedulingRule;
-import org.eclipse.core.runtime.jobs.MultiRule;
-import org.eclipse.emf.common.notify.Adapter;
-import org.eclipse.emf.common.notify.Notification;
-import org.eclipse.emf.common.notify.Notifier;
-import org.eclipse.emf.common.ui.URIEditorInput;
-import org.eclipse.emf.common.util.URI;
-import org.eclipse.emf.ecore.EObject;
-import org.eclipse.emf.ecore.resource.Resource;
-import org.eclipse.emf.ecore.resource.ResourceSet;
-import org.eclipse.emf.ecore.util.EContentAdapter;
-import org.eclipse.emf.ecore.util.EcoreUtil;
-import org.eclipse.emf.transaction.NotificationFilter;
-import org.eclipse.emf.transaction.TransactionalEditingDomain;
-import org.eclipse.emf.workspace.util.WorkspaceSynchronizer;
-import org.eclipse.gmf.runtime.common.core.command.CommandResult;
-import org.eclipse.gmf.runtime.diagram.core.DiagramEditingDomainFactory;
-import org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.AbstractDocumentProvider;
-import org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.DiagramDocument;
-import org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.IDiagramDocument;
-import org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.IDiagramDocumentProvider;
-import org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.IDocument;
-import org.eclipse.gmf.runtime.diagram.ui.resources.editor.internal.EditorStatusCodes;
-import org.eclipse.gmf.runtime.diagram.ui.resources.editor.internal.util.DiagramIOUtil;
-import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
-import org.eclipse.gmf.runtime.emf.core.resources.GMFResourceFactory;
-import org.eclipse.gmf.runtime.notation.Diagram;
-import org.eclipse.jface.operation.IRunnableContext;
-import org.eclipse.osgi.util.NLS;
-import org.eclipse.swt.widgets.Display;
-import org.eclipse.ui.IEditorInput;
-import org.eclipse.ui.part.FileEditorInput;
-
-/**
- * @generated
- */
-public class UMLDocumentProvider extends AbstractDocumentProvider implements
-		IDiagramDocumentProvider {
-
-	/**
-	 * @generated
-	 */
-	protected ElementInfo createElementInfo(Object element)
-			throws CoreException {
-		if (false == element instanceof FileEditorInput
-				&& false == element instanceof URIEditorInput) {
-			throw new CoreException(
-					new Status(
-							IStatus.ERROR,
-							UMLDiagramEditorPlugin.ID,
-							0,
-							NLS.bind(
-									Messages.UMLDocumentProvider_IncorrectInputError,
-									new Object[] {
-											element,
-											"org.eclipse.ui.part.FileEditorInput", "org.eclipse.emf.common.ui.URIEditorInput" }), //$NON-NLS-1$ //$NON-NLS-2$ 
-							null));
-		}
-		IEditorInput editorInput = (IEditorInput) element;
-		IDiagramDocument document = (IDiagramDocument) createDocument(editorInput);
-
-		ResourceSetInfo info = new ResourceSetInfo(document, editorInput);
-		info.setModificationStamp(computeModificationStamp(info));
-		info.fStatus = null;
-		return info;
-	}
-
-	/**
-	 * @generated
-	 */
-	protected IDocument createDocument(Object element) throws CoreException {
-		if (false == element instanceof FileEditorInput
-				&& false == element instanceof URIEditorInput) {
-			throw new CoreException(
-					new Status(
-							IStatus.ERROR,
-							UMLDiagramEditorPlugin.ID,
-							0,
-							NLS.bind(
-									Messages.UMLDocumentProvider_IncorrectInputError,
-									new Object[] {
-											element,
-											"org.eclipse.ui.part.FileEditorInput", "org.eclipse.emf.common.ui.URIEditorInput" }), //$NON-NLS-1$ //$NON-NLS-2$ 
-							null));
-		}
-		IDocument document = createEmptyDocument();
-		setDocumentContent(document, (IEditorInput) element);
-		setupDocument(element, document);
-		return document;
-	}
-
-	/**
-	 * Sets up the given document as it would be provided for the given element. The
-	 * content of the document is not changed. This default implementation is empty.
-	 * Subclasses may reimplement.
-	 * 
-	 * @param element the blue-print element
-	 * @param document the document to set up
-	 * @generated
-	 */
-	protected void setupDocument(Object element, IDocument document) {
-		// for subclasses
-	}
-
-	/**
-	 * @generated
-	 */
-	private long computeModificationStamp(ResourceSetInfo info) {
-		int result = 0;
-		for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
-				.hasNext();) {
-			Resource nextResource = it.next();
-			IFile file = WorkspaceSynchronizer.getFile(nextResource);
-			if (file != null) {
-				if (file.getLocation() != null) {
-					result += file.getLocation().toFile().lastModified();
-				} else {
-					result += file.getModificationStamp();
-				}
-			}
-		}
-		return result;
-	}
-
-	/**
-	 * @generated
-	 */
-	protected IDocument createEmptyDocument() {
-		DiagramDocument document = new DiagramDocument();
-		document.setEditingDomain(createEditingDomain());
-		return document;
-	}
-
-	/**
-	 * @generated
-	 */
-	private TransactionalEditingDomain createEditingDomain() {
-		TransactionalEditingDomain editingDomain = DiagramEditingDomainFactory
-				.getInstance().createEditingDomain();
-		editingDomain.setID("org.eclipse.uml2.uml.diagram.EditingDomain"); //$NON-NLS-1$
-		final NotificationFilter diagramResourceModifiedFilter = NotificationFilter
-				.createNotifierFilter(editingDomain.getResourceSet())
-				.and(NotificationFilter.createEventTypeFilter(Notification.ADD))
-				.and(NotificationFilter.createFeatureFilter(ResourceSet.class,
-						ResourceSet.RESOURCE_SET__RESOURCES));
-		editingDomain.getResourceSet().eAdapters().add(new Adapter() {
-
-			private Notifier myTarger;
-
-			public Notifier getTarget() {
-				return myTarger;
-			}
-
-			public boolean isAdapterForType(Object type) {
-				return false;
-			}
-
-			public void notifyChanged(Notification notification) {
-				if (diagramResourceModifiedFilter.matches(notification)) {
-					Object value = notification.getNewValue();
-					if (value instanceof Resource) {
-						((Resource) value).setTrackingModification(true);
-					}
-				}
-			}
-
-			public void setTarget(Notifier newTarget) {
-				myTarger = newTarget;
-			}
-
-		});
-
-		return editingDomain;
-	}
-
-	/**
-	 * @generated
-	 */
-	protected void setDocumentContent(IDocument document, IEditorInput element)
-			throws CoreException {
-		IDiagramDocument diagramDocument = (IDiagramDocument) document;
-		TransactionalEditingDomain domain = diagramDocument.getEditingDomain();
-		if (element instanceof FileEditorInput) {
-			IStorage storage = ((FileEditorInput) element).getStorage();
-			Diagram diagram = DiagramIOUtil.load(domain, storage, true,
-					getProgressMonitor());
-			document.setContent(diagram);
-		} else if (element instanceof URIEditorInput) {
-			URI uri = ((URIEditorInput) element).getURI();
-			Resource resource = null;
-			try {
-				resource = domain.getResourceSet().getResource(
-						uri.trimFragment(), false);
-				if (resource == null) {
-					resource = domain.getResourceSet().createResource(
-							uri.trimFragment());
-				}
-				if (!resource.isLoaded()) {
-					try {
-						Map options = new HashMap(
-								GMFResourceFactory.getDefaultLoadOptions());
-						// @see 171060 
-						// options.put(org.eclipse.emf.ecore.xmi.XMLResource.OPTION_RECORD_UNKNOWN_FEATURE, Boolean.TRUE);
-						resource.load(options);
-					} catch (IOException e) {
-						resource.unload();
-						throw e;
-					}
-				}
-				if (uri.fragment() != null) {
-					EObject rootElement = resource.getEObject(uri.fragment());
-					if (rootElement instanceof Diagram) {
-						document.setContent((Diagram) rootElement);
-						return;
-					}
-				} else {
-					for (Iterator it = resource.getContents().iterator(); it
-							.hasNext();) {
-						Object rootElement = it.next();
-						if (rootElement instanceof Diagram) {
-							document.setContent((Diagram) rootElement);
-							return;
-						}
-					}
-				}
-				throw new RuntimeException(
-						Messages.UMLDocumentProvider_NoDiagramInResourceError);
-			} catch (Exception e) {
-				CoreException thrownExcp = null;
-				if (e instanceof CoreException) {
-					thrownExcp = (CoreException) e;
-				} else {
-					String msg = e.getLocalizedMessage();
-					thrownExcp = new CoreException(
-							new Status(
-									IStatus.ERROR,
-									UMLDiagramEditorPlugin.ID,
-									0,
-									msg != null ? msg
-											: Messages.UMLDocumentProvider_DiagramLoadingError,
-									e));
-				}
-				throw thrownExcp;
-			}
-		} else {
-			throw new CoreException(
-					new Status(
-							IStatus.ERROR,
-							UMLDiagramEditorPlugin.ID,
-							0,
-							NLS.bind(
-									Messages.UMLDocumentProvider_IncorrectInputError,
-									new Object[] {
-											element,
-											"org.eclipse.ui.part.FileEditorInput", "org.eclipse.emf.common.ui.URIEditorInput" }), //$NON-NLS-1$ //$NON-NLS-2$ 
-							null));
-		}
-	}
-
-	/**
-	 * @generated
-	 */
-	public long getModificationStamp(Object element) {
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			return computeModificationStamp(info);
-		}
-		return super.getModificationStamp(element);
-	}
-
-	/**
-	 * @generated
-	 */
-	public boolean isDeleted(Object element) {
-		IDiagramDocument document = getDiagramDocument(element);
-		if (document != null) {
-			Resource diagramResource = document.getDiagram().eResource();
-			if (diagramResource != null) {
-				IFile file = WorkspaceSynchronizer.getFile(diagramResource);
-				return file == null || file.getLocation() == null
-						|| !file.getLocation().toFile().exists();
-			}
-		}
-		return super.isDeleted(element);
-	}
-
-	/**
-	 * @generated
-	 */
-	public ResourceSetInfo getResourceSetInfo(Object editorInput) {
-		return (ResourceSetInfo) super.getElementInfo(editorInput);
-	}
-
-	/**
-	 * @generated
-	 */
-	protected void disposeElementInfo(Object element, ElementInfo info) {
-		if (info instanceof ResourceSetInfo) {
-			ResourceSetInfo resourceSetInfo = (ResourceSetInfo) info;
-			resourceSetInfo.dispose();
-		}
-		super.disposeElementInfo(element, info);
-	}
-
-	/**
-	 * @generated
-	 */
-	protected void doValidateState(Object element, Object computationContext)
-			throws CoreException {
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			LinkedList<IFile> files2Validate = new LinkedList<IFile>();
-			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
-					.hasNext();) {
-				Resource nextResource = it.next();
-				IFile file = WorkspaceSynchronizer.getFile(nextResource);
-				if (file != null && file.isReadOnly()) {
-					files2Validate.add(file);
-				}
-			}
-			ResourcesPlugin.getWorkspace().validateEdit(
-					(IFile[]) files2Validate.toArray(new IFile[files2Validate
-							.size()]), computationContext);
-		}
-
-		super.doValidateState(element, computationContext);
-	}
-
-	/**
-	 * @generated
-	 */
-	public boolean isReadOnly(Object element) {
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			if (info.isUpdateCache()) {
-				try {
-					updateCache(element);
-				} catch (CoreException ex) {
-					UMLDiagramEditorPlugin.getInstance().logError(
-							Messages.UMLDocumentProvider_isModifiable, ex);
-					// Error message to log was initially taken from org.eclipse.gmf.runtime.diagram.ui.resources.editor.ide.internal.l10n.EditorMessages.StorageDocumentProvider_isModifiable
-				}
-			}
-			return info.isReadOnly();
-		}
-		return super.isReadOnly(element);
-	}
-
-	/**
-	 * @generated
-	 */
-	public boolean isModifiable(Object element) {
-		if (!isStateValidated(element)) {
-			if (element instanceof FileEditorInput
-					|| element instanceof URIEditorInput) {
-				return true;
-			}
-		}
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			if (info.isUpdateCache()) {
-				try {
-					updateCache(element);
-				} catch (CoreException ex) {
-					UMLDiagramEditorPlugin.getInstance().logError(
-							Messages.UMLDocumentProvider_isModifiable, ex);
-					// Error message to log was initially taken from org.eclipse.gmf.runtime.diagram.ui.resources.editor.ide.internal.l10n.EditorMessages.StorageDocumentProvider_isModifiable
-				}
-			}
-			return info.isModifiable();
-		}
-		return super.isModifiable(element);
-	}
-
-	/**
-	 * @generated
-	 */
-	protected void updateCache(Object element) throws CoreException {
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
-					.hasNext();) {
-				Resource nextResource = it.next();
-				IFile file = WorkspaceSynchronizer.getFile(nextResource);
-				if (file != null && file.isReadOnly()) {
-					info.setReadOnly(true);
-					info.setModifiable(false);
-					return;
-				}
-			}
-			info.setReadOnly(false);
-			info.setModifiable(true);
-			return;
-		}
-	}
-
-	/**
-	 * @generated
-	 */
-	protected void doUpdateStateCache(Object element) throws CoreException {
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			info.setUpdateCache(true);
-		}
-		super.doUpdateStateCache(element);
-	}
-
-	/**
-	 * @generated
-	 */
-	public boolean isSynchronized(Object element) {
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			return info.isSynchronized();
-		}
-		return super.isSynchronized(element);
-	}
-
-	/**
-	 * @generated
-	 */
-	protected ISchedulingRule getResetRule(Object element) {
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			LinkedList<ISchedulingRule> rules = new LinkedList<ISchedulingRule>();
-			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
-					.hasNext();) {
-				Resource nextResource = it.next();
-				IFile file = WorkspaceSynchronizer.getFile(nextResource);
-				if (file != null) {
-					rules.add(ResourcesPlugin.getWorkspace().getRuleFactory()
-							.modifyRule(file));
-				}
-			}
-			return new MultiRule(
-					(ISchedulingRule[]) rules.toArray(new ISchedulingRule[rules
-							.size()]));
-		}
-		return null;
-	}
-
-	/**
-	 * @generated
-	 */
-	protected ISchedulingRule getSaveRule(Object element) {
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			LinkedList<ISchedulingRule> rules = new LinkedList<ISchedulingRule>();
-			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
-					.hasNext();) {
-				Resource nextResource = it.next();
-				IFile file = WorkspaceSynchronizer.getFile(nextResource);
-				if (file != null) {
-					rules.add(computeSchedulingRule(file));
-				}
-			}
-			return new MultiRule(
-					(ISchedulingRule[]) rules.toArray(new ISchedulingRule[rules
-							.size()]));
-		}
-		return null;
-	}
-
-	/**
-	 * @generated
-	 */
-	protected ISchedulingRule getSynchronizeRule(Object element) {
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			LinkedList<ISchedulingRule> rules = new LinkedList<ISchedulingRule>();
-			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
-					.hasNext();) {
-				Resource nextResource = it.next();
-				IFile file = WorkspaceSynchronizer.getFile(nextResource);
-				if (file != null) {
-					rules.add(ResourcesPlugin.getWorkspace().getRuleFactory()
-							.refreshRule(file));
-				}
-			}
-			return new MultiRule(
-					(ISchedulingRule[]) rules.toArray(new ISchedulingRule[rules
-							.size()]));
-		}
-		return null;
-	}
-
-	/**
-	 * @generated
-	 */
-	protected ISchedulingRule getValidateStateRule(Object element) {
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			LinkedList<ISchedulingRule> files = new LinkedList<ISchedulingRule>();
-			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
-					.hasNext();) {
-				Resource nextResource = it.next();
-				IFile file = WorkspaceSynchronizer.getFile(nextResource);
-				if (file != null) {
-					files.add(file);
-				}
-			}
-			return ResourcesPlugin
-					.getWorkspace()
-					.getRuleFactory()
-					.validateEditRule(
-							(IFile[]) files.toArray(new IFile[files.size()]));
-		}
-		return null;
-	}
-
-	/**
-	 * @generated
-	 */
-	private ISchedulingRule computeSchedulingRule(IResource toCreateOrModify) {
-		if (toCreateOrModify.exists())
-			return ResourcesPlugin.getWorkspace().getRuleFactory()
-					.modifyRule(toCreateOrModify);
-
-		IResource parent = toCreateOrModify;
-		do {
-			/*
-			 * XXX This is a workaround for
-			 * https://bugs.eclipse.org/bugs/show_bug.cgi?id=67601
-			 * IResourceRuleFactory.createRule should iterate the hierarchy
-			 * itself.
-			 */
-			toCreateOrModify = parent;
-			parent = toCreateOrModify.getParent();
-		} while (parent != null && !parent.exists());
-
-		return ResourcesPlugin.getWorkspace().getRuleFactory()
-				.createRule(toCreateOrModify);
-	}
-
-	/**
-	 * @generated
-	 */
-	protected void doSynchronize(Object element, IProgressMonitor monitor)
-			throws CoreException {
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
-					.hasNext();) {
-				Resource nextResource = it.next();
-				handleElementChanged(info, nextResource, monitor);
-			}
-			return;
-		}
-		super.doSynchronize(element, monitor);
-	}
-
-	/**
-	 * @generated
-	 */
-	protected void doSaveDocument(IProgressMonitor monitor, Object element,
-			IDocument document, boolean overwrite) throws CoreException {
-		ResourceSetInfo info = getResourceSetInfo(element);
-		if (info != null) {
-			if (!overwrite && !info.isSynchronized()) {
-				throw new CoreException(
-						new Status(
-								IStatus.ERROR,
-								UMLDiagramEditorPlugin.ID,
-								IResourceStatus.OUT_OF_SYNC_LOCAL,
-								Messages.UMLDocumentProvider_UnsynchronizedFileSaveError,
-								null));
-			}
-			info.stopResourceListening();
-			fireElementStateChanging(element);
-			try {
-				monitor.beginTask(Messages.UMLDocumentProvider_SaveDiagramTask,
-						info.getResourceSet().getResources().size() + 1); //"Saving diagram"
-				for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
-						.hasNext();) {
-					Resource nextResource = it.next();
-					monitor.setTaskName(NLS.bind(
-							Messages.UMLDocumentProvider_SaveNextResourceTask,
-							nextResource.getURI()));
-					if (nextResource.isLoaded()
-							&& !info.getEditingDomain()
-									.isReadOnly(nextResource)) {
-						try {
-							nextResource.save(UMLDiagramEditorUtil
-									.getSaveOptions());
-						} catch (IOException e) {
-							fireElementStateChangeFailed(element);
-							throw new CoreException(new Status(IStatus.ERROR,
-									UMLDiagramEditorPlugin.ID,
-									EditorStatusCodes.RESOURCE_FAILURE,
-									e.getLocalizedMessage(), null));
-						}
-					}
-					monitor.worked(1);
-				}
-				monitor.done();
-				info.setModificationStamp(computeModificationStamp(info));
-			} catch (RuntimeException x) {
-				fireElementStateChangeFailed(element);
-				throw x;
-			} finally {
-				info.startResourceListening();
-			}
-		} else {
-			URI newResoruceURI;
-			List<IFile> affectedFiles = null;
-			if (element instanceof FileEditorInput) {
-				IFile newFile = ((FileEditorInput) element).getFile();
-				affectedFiles = Collections.singletonList(newFile);
-				newResoruceURI = URI.createPlatformResourceURI(newFile
-						.getFullPath().toString(), true);
-			} else if (element instanceof URIEditorInput) {
-				newResoruceURI = ((URIEditorInput) element).getURI();
-			} else {
-				fireElementStateChangeFailed(element);
-				throw new CoreException(
-						new Status(
-								IStatus.ERROR,
-								UMLDiagramEditorPlugin.ID,
-								0,
-								NLS.bind(
-										Messages.UMLDocumentProvider_IncorrectInputError,
-										new Object[] {
-												element,
-												"org.eclipse.ui.part.FileEditorInput", "org.eclipse.emf.common.ui.URIEditorInput" }), //$NON-NLS-1$ //$NON-NLS-2$ 
-								null));
-			}
-			if (false == document instanceof IDiagramDocument) {
-				fireElementStateChangeFailed(element);
-				throw new CoreException(
-						new Status(
-								IStatus.ERROR,
-								UMLDiagramEditorPlugin.ID,
-								0,
-								"Incorrect document used: " + document + " instead of org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.IDiagramDocument", null)); //$NON-NLS-1$ //$NON-NLS-2$
-			}
-			IDiagramDocument diagramDocument = (IDiagramDocument) document;
-			final Resource newResource = diagramDocument.getEditingDomain()
-					.getResourceSet().createResource(newResoruceURI);
-			final Diagram diagramCopy = (Diagram) EcoreUtil
-					.copy(diagramDocument.getDiagram());
-			try {
-				new AbstractTransactionalCommand(
-						diagramDocument.getEditingDomain(), NLS.bind(
-								Messages.UMLDocumentProvider_SaveAsOperation,
-								diagramCopy.getName()), affectedFiles) {
-					protected CommandResult doExecuteWithResult(
-							IProgressMonitor monitor, IAdaptable info)
-							throws ExecutionException {
-						newResource.getContents().add(diagramCopy);
-						return CommandResult.newOKCommandResult();
-					}
-				}.execute(monitor, null);
-				newResource.save(UMLDiagramEditorUtil.getSaveOptions());
-			} catch (ExecutionException e) {
-				fireElementStateChangeFailed(element);
-				throw new CoreException(new Status(IStatus.ERROR,
-						UMLDiagramEditorPlugin.ID, 0, e.getLocalizedMessage(),
-						null));
-			} catch (IOException e) {
-				fireElementStateChangeFailed(element);
-				throw new CoreException(new Status(IStatus.ERROR,
-						UMLDiagramEditorPlugin.ID, 0, e.getLocalizedMessage(),
-						null));
-			}
-			newResource.unload();
-		}
-	}
-
-	/**
-	 * @generated
-	 */
-	protected void handleElementChanged(ResourceSetInfo info,
-			Resource changedResource, IProgressMonitor monitor) {
-		IFile file = WorkspaceSynchronizer.getFile(changedResource);
-		if (file != null) {
-			try {
-				file.refreshLocal(IResource.DEPTH_INFINITE, monitor);
-			} catch (CoreException ex) {
-				UMLDiagramEditorPlugin
-						.getInstance()
-						.logError(
-								Messages.UMLDocumentProvider_handleElementContentChanged,
-								ex);
-				// Error message to log was initially taken from org.eclipse.gmf.runtime.diagram.ui.resources.editor.ide.internal.l10n.EditorMessages.FileDocumentProvider_handleElementContentChanged
-			}
-		}
-		changedResource.unload();
-
-		fireElementContentAboutToBeReplaced(info.getEditorInput());
-		removeUnchangedElementListeners(info.getEditorInput(), info);
-		info.fStatus = null;
-		try {
-			setDocumentContent(info.fDocument, info.getEditorInput());
-		} catch (CoreException e) {
-			info.fStatus = e.getStatus();
-		}
-		if (!info.fCanBeSaved) {
-			info.setModificationStamp(computeModificationStamp(info));
-		}
-		addUnchangedElementListeners(info.getEditorInput(), info);
-		fireElementContentReplaced(info.getEditorInput());
-	}
-
-	/**
-	 * @generated
-	 */
-	protected void handleElementMoved(IEditorInput input, URI uri) {
-		if (input instanceof FileEditorInput) {
-			IFile newFile = ResourcesPlugin
-					.getWorkspace()
-					.getRoot()
-					.getFile(
-							new Path(URI.decode(uri.path()))
-									.removeFirstSegments(1));
-			fireElementMoved(input, newFile == null ? null
-					: new FileEditorInput(newFile));
-			return;
-		}
-		// TODO: append suffix to the URI! (use diagram as a parameter)
-		fireElementMoved(input, new URIEditorInput(uri));
-	}
-
-	/**
-	 * @generated
-	 */
-	public IEditorInput createInputWithEditingDomain(IEditorInput editorInput,
-			TransactionalEditingDomain domain) {
-		return editorInput;
-	}
-
-	/**
-	 * @generated
-	 */
-	public IDiagramDocument getDiagramDocument(Object element) {
-		IDocument doc = getDocument(element);
-		if (doc instanceof IDiagramDocument) {
-			return (IDiagramDocument) doc;
-		}
-		return null;
-	}
-
-	/**
-	 * @generated
-	 */
-	protected IRunnableContext getOperationRunner(IProgressMonitor monitor) {
-		return null;
-	}
-
-	/**
-	 * @generated
-	 */
-	protected class ResourceSetInfo extends ElementInfo {
-
-		/**
-		 * @generated
-		 */
-		private long myModificationStamp = IResource.NULL_STAMP;
-
-		/**
-		 * @generated
-		 */
-		private WorkspaceSynchronizer mySynchronizer;
-
-		/**
-		 * @generated
-		 */
-		private LinkedList<Resource> myUnSynchronizedResources = new LinkedList<Resource>();
-
-		/**
-		 * @generated
-		 */
-		private IDiagramDocument myDocument;
-
-		/**
-		 * @generated
-		 */
-		private IEditorInput myEditorInput;
-
-		/**
-		 * @generated
-		 */
-		private boolean myUpdateCache = true;
-
-		/**
-		 * @generated
-		 */
-		private boolean myModifiable = false;
-
-		/**
-		 * @generated
-		 */
-		private boolean myReadOnly = true;
-
-		/**
-		 * @generated
-		 */
-		private ResourceSetModificationListener myResourceSetListener;
-
-		/**
-		 * @generated
-		 */
-		public ResourceSetInfo(IDiagramDocument document,
-				IEditorInput editorInput) {
-			super(document);
-			myDocument = document;
-			myEditorInput = editorInput;
-			startResourceListening();
-			myResourceSetListener = new ResourceSetModificationListener(this);
-			getResourceSet().eAdapters().add(myResourceSetListener);
-		}
-
-		/**
-		 * @generated
-		 */
-		public long getModificationStamp() {
-			return myModificationStamp;
-		}
-
-		/**
-		 * @generated
-		 */
-		public void setModificationStamp(long modificationStamp) {
-			myModificationStamp = modificationStamp;
-		}
-
-		/**
-		 * @generated
-		 */
-		public TransactionalEditingDomain getEditingDomain() {
-			return myDocument.getEditingDomain();
-		}
-
-		/**
-		 * @generated
-		 */
-		public ResourceSet getResourceSet() {
-			return getEditingDomain().getResourceSet();
-		}
-
-		/**
-		 * @generated
-		 */
-		public Iterator<Resource> getLoadedResourcesIterator() {
-			return new ArrayList<Resource>(getResourceSet().getResources())
-					.iterator();
-		}
-
-		/**
-		 * @generated
-		 */
-		public IEditorInput getEditorInput() {
-			return myEditorInput;
-		}
-
-		/**
-		 * @generated
-		 */
-		public void dispose() {
-			stopResourceListening();
-			getResourceSet().eAdapters().remove(myResourceSetListener);
-			for (Iterator<Resource> it = getLoadedResourcesIterator(); it
-					.hasNext();) {
-				Resource resource = it.next();
-				resource.unload();
-			}
-			getEditingDomain().dispose();
-		}
-
-		/**
-		 * @generated
-		 */
-		public boolean isSynchronized() {
-			return myUnSynchronizedResources.size() == 0;
-		}
-
-		/**
-		 * @generated
-		 */
-		public void setUnSynchronized(Resource resource) {
-			myUnSynchronizedResources.add(resource);
-		}
-
-		/**
-		 * @generated
-		 */
-		public void setSynchronized(Resource resource) {
-			myUnSynchronizedResources.remove(resource);
-		}
-
-		/**
-		 * @generated
-		 */
-		public final void stopResourceListening() {
-			mySynchronizer.dispose();
-			mySynchronizer = null;
-		}
-
-		/**
-		 * @generated
-		 */
-		public final void startResourceListening() {
-			mySynchronizer = new WorkspaceSynchronizer(getEditingDomain(),
-					new SynchronizerDelegate());
-		}
-
-		/**
-		 * @generated
-		 */
-		public boolean isUpdateCache() {
-			return myUpdateCache;
-		}
-
-		/**
-		 * @generated
-		 */
-		public void setUpdateCache(boolean update) {
-			myUpdateCache = update;
-		}
-
-		/**
-		 * @generated
-		 */
-		public boolean isModifiable() {
-			return myModifiable;
-		}
-
-		/**
-		 * @generated
-		 */
-		public void setModifiable(boolean modifiable) {
-			myModifiable = modifiable;
-		}
-
-		/**
-		 * @generated
-		 */
-		public boolean isReadOnly() {
-			return myReadOnly;
-		}
-
-		/**
-		 * @generated
-		 */
-		public void setReadOnly(boolean readOnly) {
-			myReadOnly = readOnly;
-		}
-
-		/**
-		 * @generated
-		 */
-		private class SynchronizerDelegate implements
-				WorkspaceSynchronizer.Delegate {
-
-			/**
-			 * @generated
-			 */
-			public void dispose() {
-			}
-
-			/**
-			 * @generated
-			 */
-			public boolean handleResourceChanged(final Resource resource) {
-				synchronized (ResourceSetInfo.this) {
-					if (ResourceSetInfo.this.fCanBeSaved) {
-						ResourceSetInfo.this.setUnSynchronized(resource);
-						return true;
-					}
-				}
-				Display.getDefault().asyncExec(new Runnable() {
-					public void run() {
-						handleElementChanged(ResourceSetInfo.this, resource,
-								null);
-					}
-				});
-				return true;
-			}
-
-			/**
-			 * @generated
-			 */
-			public boolean handleResourceDeleted(Resource resource) {
-				synchronized (ResourceSetInfo.this) {
-					if (ResourceSetInfo.this.fCanBeSaved) {
-						ResourceSetInfo.this.setUnSynchronized(resource);
-						return true;
-					}
-				}
-				Display.getDefault().asyncExec(new Runnable() {
-					public void run() {
-						fireElementDeleted(ResourceSetInfo.this
-								.getEditorInput());
-					}
-				});
-				return true;
-			}
-
-			/**
-			 * @generated
-			 */
-			public boolean handleResourceMoved(Resource resource,
-					final URI newURI) {
-				synchronized (ResourceSetInfo.this) {
-					if (ResourceSetInfo.this.fCanBeSaved) {
-						ResourceSetInfo.this.setUnSynchronized(resource);
-						return true;
-					}
-				}
-				if (myDocument.getDiagram().eResource() == resource) {
-					Display.getDefault().asyncExec(new Runnable() {
-						public void run() {
-							handleElementMoved(
-									ResourceSetInfo.this.getEditorInput(),
-									newURI);
-						}
-					});
-				} else {
-					handleResourceDeleted(resource);
-				}
-				return true;
-			}
-
-		}
-
-	}
-
-	/**
-	 * @generated
-	 */
-	private class ResourceSetModificationListener extends EContentAdapter {
-
-		/**
-		 * @generated
-		 */
-		private NotificationFilter myModifiedFilter;
-
-		/**
-		 * @generated
-		 */
-		private ResourceSetInfo myInfo;
-
-		/**
-		 * @generated
-		 */
-		public ResourceSetModificationListener(ResourceSetInfo info) {
-			myInfo = info;
-			myModifiedFilter = NotificationFilter
-					.createEventTypeFilter(Notification.SET)
-					.or(NotificationFilter
-							.createEventTypeFilter(Notification.UNSET))
-					.and(NotificationFilter.createFeatureFilter(Resource.class,
-							Resource.RESOURCE__IS_MODIFIED));
-		}
-
-		/**
-		 * @generated
-		 */
-		public void notifyChanged(Notification notification) {
-			if (notification.getNotifier() instanceof ResourceSet) {
-				super.notifyChanged(notification);
-			}
-			if (!notification.isTouch()
-					&& myModifiedFilter.matches(notification)) {
-				if (notification.getNotifier() instanceof Resource) {
-					Resource resource = (Resource) notification.getNotifier();
-					if (resource.isLoaded()) {
-						boolean modified = false;
-						for (Iterator/*<org.eclipse.emf.ecore.resource.Resource>*/it = myInfo
-								.getLoadedResourcesIterator(); it.hasNext()
-								&& !modified;) {
-							Resource nextResource = (Resource) it.next();
-							if (nextResource.isLoaded()) {
-								modified = nextResource.isModified();
-							}
-						}
-						boolean dirtyStateChanged = false;
-						synchronized (myInfo) {
-							if (modified != myInfo.fCanBeSaved) {
-								myInfo.fCanBeSaved = modified;
-								dirtyStateChanged = true;
-							}
-							if (!resource.isModified()) {
-								myInfo.setSynchronized(resource);
-							}
-						}
-						if (dirtyStateChanged) {
-							fireElementDirtyStateChanged(
-									myInfo.getEditorInput(), modified);
-
-							if (!modified) {
-								myInfo.setModificationStamp(computeModificationStamp(myInfo));
-							}
-						}
-					}
-				}
-			}
-		}
-
-	}
-
-}
+package org.eclipse.papyrus.example.diagram.simplediagram.part;
+
+import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.HashMap;
+import java.util.Iterator;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+
+import org.eclipse.core.commands.ExecutionException;
+import org.eclipse.core.resources.IFile;
+import org.eclipse.core.resources.IResource;
+import org.eclipse.core.resources.IResourceStatus;
+import org.eclipse.core.resources.IStorage;
+import org.eclipse.core.resources.ResourcesPlugin;
+import org.eclipse.core.runtime.CoreException;
+import org.eclipse.core.runtime.IAdaptable;
+import org.eclipse.core.runtime.IProgressMonitor;
+import org.eclipse.core.runtime.IStatus;
+import org.eclipse.core.runtime.Path;
+import org.eclipse.core.runtime.Status;
+import org.eclipse.core.runtime.jobs.ISchedulingRule;
+import org.eclipse.core.runtime.jobs.MultiRule;
+import org.eclipse.emf.common.notify.Adapter;
+import org.eclipse.emf.common.notify.Notification;
+import org.eclipse.emf.common.notify.Notifier;
+import org.eclipse.emf.common.ui.URIEditorInput;
+import org.eclipse.emf.common.util.URI;
+import org.eclipse.emf.ecore.EObject;
+import org.eclipse.emf.ecore.resource.Resource;
+import org.eclipse.emf.ecore.resource.ResourceSet;
+import org.eclipse.emf.ecore.util.EContentAdapter;
+import org.eclipse.emf.ecore.util.EcoreUtil;
+import org.eclipse.emf.transaction.NotificationFilter;
+import org.eclipse.emf.transaction.TransactionalEditingDomain;
+import org.eclipse.emf.workspace.util.WorkspaceSynchronizer;
+import org.eclipse.gmf.runtime.common.core.command.CommandResult;
+import org.eclipse.gmf.runtime.diagram.core.DiagramEditingDomainFactory;
+import org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.AbstractDocumentProvider;
+import org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.DiagramDocument;
+import org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.IDiagramDocument;
+import org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.IDiagramDocumentProvider;
+import org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.IDocument;
+import org.eclipse.gmf.runtime.diagram.ui.resources.editor.internal.EditorStatusCodes;
+import org.eclipse.gmf.runtime.diagram.ui.resources.editor.internal.util.DiagramIOUtil;
+import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
+import org.eclipse.gmf.runtime.emf.core.resources.GMFResourceFactory;
+import org.eclipse.gmf.runtime.notation.Diagram;
+import org.eclipse.jface.operation.IRunnableContext;
+import org.eclipse.osgi.util.NLS;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.ui.IEditorInput;
+import org.eclipse.ui.part.FileEditorInput;
+
+/**
+ * @generated
+ */
+public class UMLDocumentProvider extends AbstractDocumentProvider implements
+		IDiagramDocumentProvider {
+
+	/**
+	 * @generated
+	 */
+	protected ElementInfo createElementInfo(Object element)
+			throws CoreException {
+		if (false == element instanceof FileEditorInput
+				&& false == element instanceof URIEditorInput) {
+			throw new CoreException(
+					new Status(
+							IStatus.ERROR,
+							UMLDiagramEditorPlugin.ID,
+							0,
+							NLS.bind(
+									Messages.UMLDocumentProvider_IncorrectInputError,
+									new Object[] {
+											element,
+											"org.eclipse.ui.part.FileEditorInput", "org.eclipse.emf.common.ui.URIEditorInput" }), //$NON-NLS-1$ //$NON-NLS-2$ 
+							null));
+		}
+		IEditorInput editorInput = (IEditorInput) element;
+		IDiagramDocument document = (IDiagramDocument) createDocument(editorInput);
+
+		ResourceSetInfo info = new ResourceSetInfo(document, editorInput);
+		info.setModificationStamp(computeModificationStamp(info));
+		info.fStatus = null;
+		return info;
+	}
+
+	/**
+	 * @generated
+	 */
+	protected IDocument createDocument(Object element) throws CoreException {
+		if (false == element instanceof FileEditorInput
+				&& false == element instanceof URIEditorInput) {
+			throw new CoreException(
+					new Status(
+							IStatus.ERROR,
+							UMLDiagramEditorPlugin.ID,
+							0,
+							NLS.bind(
+									Messages.UMLDocumentProvider_IncorrectInputError,
+									new Object[] {
+											element,
+											"org.eclipse.ui.part.FileEditorInput", "org.eclipse.emf.common.ui.URIEditorInput" }), //$NON-NLS-1$ //$NON-NLS-2$ 
+							null));
+		}
+		IDocument document = createEmptyDocument();
+		setDocumentContent(document, (IEditorInput) element);
+		setupDocument(element, document);
+		return document;
+	}
+
+	/**
+	 * Sets up the given document as it would be provided for the given element. The
+	 * content of the document is not changed. This default implementation is empty.
+	 * Subclasses may reimplement.
+	 * 
+	 * @param element the blue-print element
+	 * @param document the document to set up
+	 * @generated
+	 */
+	protected void setupDocument(Object element, IDocument document) {
+		// for subclasses
+	}
+
+	/**
+	 * @generated
+	 */
+	private long computeModificationStamp(ResourceSetInfo info) {
+		int result = 0;
+		for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
+				.hasNext();) {
+			Resource nextResource = it.next();
+			IFile file = WorkspaceSynchronizer.getFile(nextResource);
+			if (file != null) {
+				if (file.getLocation() != null) {
+					result += file.getLocation().toFile().lastModified();
+				} else {
+					result += file.getModificationStamp();
+				}
+			}
+		}
+		return result;
+	}
+
+	/**
+	 * @generated
+	 */
+	protected IDocument createEmptyDocument() {
+		DiagramDocument document = new DiagramDocument();
+		document.setEditingDomain(createEditingDomain());
+		return document;
+	}
+
+	/**
+	 * @generated
+	 */
+	private TransactionalEditingDomain createEditingDomain() {
+		TransactionalEditingDomain editingDomain = DiagramEditingDomainFactory
+				.getInstance().createEditingDomain();
+		editingDomain.setID("org.eclipse.uml2.uml.diagram.EditingDomain"); //$NON-NLS-1$
+		final NotificationFilter diagramResourceModifiedFilter = NotificationFilter
+				.createNotifierFilter(editingDomain.getResourceSet())
+				.and(NotificationFilter.createEventTypeFilter(Notification.ADD))
+				.and(NotificationFilter.createFeatureFilter(ResourceSet.class,
+						ResourceSet.RESOURCE_SET__RESOURCES));
+		editingDomain.getResourceSet().eAdapters().add(new Adapter() {
+
+			private Notifier myTarger;
+
+			public Notifier getTarget() {
+				return myTarger;
+			}
+
+			public boolean isAdapterForType(Object type) {
+				return false;
+			}
+
+			public void notifyChanged(Notification notification) {
+				if (diagramResourceModifiedFilter.matches(notification)) {
+					Object value = notification.getNewValue();
+					if (value instanceof Resource) {
+						((Resource) value).setTrackingModification(true);
+					}
+				}
+			}
+
+			public void setTarget(Notifier newTarget) {
+				myTarger = newTarget;
+			}
+
+		});
+
+		return editingDomain;
+	}
+
+	/**
+	 * @generated
+	 */
+	protected void setDocumentContent(IDocument document, IEditorInput element)
+			throws CoreException {
+		IDiagramDocument diagramDocument = (IDiagramDocument) document;
+		TransactionalEditingDomain domain = diagramDocument.getEditingDomain();
+		if (element instanceof FileEditorInput) {
+			IStorage storage = ((FileEditorInput) element).getStorage();
+			Diagram diagram = DiagramIOUtil.load(domain, storage, true,
+					getProgressMonitor());
+			document.setContent(diagram);
+		} else if (element instanceof URIEditorInput) {
+			URI uri = ((URIEditorInput) element).getURI();
+			Resource resource = null;
+			try {
+				resource = domain.getResourceSet().getResource(
+						uri.trimFragment(), false);
+				if (resource == null) {
+					resource = domain.getResourceSet().createResource(
+							uri.trimFragment());
+				}
+				if (!resource.isLoaded()) {
+					try {
+						Map options = new HashMap(
+								GMFResourceFactory.getDefaultLoadOptions());
+						// @see 171060 
+						// options.put(org.eclipse.emf.ecore.xmi.XMLResource.OPTION_RECORD_UNKNOWN_FEATURE, Boolean.TRUE);
+						resource.load(options);
+					} catch (IOException e) {
+						resource.unload();
+						throw e;
+					}
+				}
+				if (uri.fragment() != null) {
+					EObject rootElement = resource.getEObject(uri.fragment());
+					if (rootElement instanceof Diagram) {
+						document.setContent((Diagram) rootElement);
+						return;
+					}
+				} else {
+					for (Iterator it = resource.getContents().iterator(); it
+							.hasNext();) {
+						Object rootElement = it.next();
+						if (rootElement instanceof Diagram) {
+							document.setContent((Diagram) rootElement);
+							return;
+						}
+					}
+				}
+				throw new RuntimeException(
+						Messages.UMLDocumentProvider_NoDiagramInResourceError);
+			} catch (Exception e) {
+				CoreException thrownExcp = null;
+				if (e instanceof CoreException) {
+					thrownExcp = (CoreException) e;
+				} else {
+					String msg = e.getLocalizedMessage();
+					thrownExcp = new CoreException(
+							new Status(
+									IStatus.ERROR,
+									UMLDiagramEditorPlugin.ID,
+									0,
+									msg != null ? msg
+											: Messages.UMLDocumentProvider_DiagramLoadingError,
+									e));
+				}
+				throw thrownExcp;
+			}
+		} else {
+			throw new CoreException(
+					new Status(
+							IStatus.ERROR,
+							UMLDiagramEditorPlugin.ID,
+							0,
+							NLS.bind(
+									Messages.UMLDocumentProvider_IncorrectInputError,
+									new Object[] {
+											element,
+											"org.eclipse.ui.part.FileEditorInput", "org.eclipse.emf.common.ui.URIEditorInput" }), //$NON-NLS-1$ //$NON-NLS-2$ 
+							null));
+		}
+	}
+
+	/**
+	 * @generated
+	 */
+	public long getModificationStamp(Object element) {
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			return computeModificationStamp(info);
+		}
+		return super.getModificationStamp(element);
+	}
+
+	/**
+	 * @generated
+	 */
+	public boolean isDeleted(Object element) {
+		IDiagramDocument document = getDiagramDocument(element);
+		if (document != null) {
+			Resource diagramResource = document.getDiagram().eResource();
+			if (diagramResource != null) {
+				IFile file = WorkspaceSynchronizer.getFile(diagramResource);
+				return file == null || file.getLocation() == null
+						|| !file.getLocation().toFile().exists();
+			}
+		}
+		return super.isDeleted(element);
+	}
+
+	/**
+	 * @generated
+	 */
+	public ResourceSetInfo getResourceSetInfo(Object editorInput) {
+		return (ResourceSetInfo) super.getElementInfo(editorInput);
+	}
+
+	/**
+	 * @generated
+	 */
+	protected void disposeElementInfo(Object element, ElementInfo info) {
+		if (info instanceof ResourceSetInfo) {
+			ResourceSetInfo resourceSetInfo = (ResourceSetInfo) info;
+			resourceSetInfo.dispose();
+		}
+		super.disposeElementInfo(element, info);
+	}
+
+	/**
+	 * @generated
+	 */
+	protected void doValidateState(Object element, Object computationContext)
+			throws CoreException {
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			LinkedList<IFile> files2Validate = new LinkedList<IFile>();
+			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
+					.hasNext();) {
+				Resource nextResource = it.next();
+				IFile file = WorkspaceSynchronizer.getFile(nextResource);
+				if (file != null && file.isReadOnly()) {
+					files2Validate.add(file);
+				}
+			}
+			ResourcesPlugin.getWorkspace().validateEdit(
+					(IFile[]) files2Validate.toArray(new IFile[files2Validate
+							.size()]), computationContext);
+		}
+
+		super.doValidateState(element, computationContext);
+	}
+
+	/**
+	 * @generated
+	 */
+	public boolean isReadOnly(Object element) {
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			if (info.isUpdateCache()) {
+				try {
+					updateCache(element);
+				} catch (CoreException ex) {
+					UMLDiagramEditorPlugin.getInstance().logError(
+							Messages.UMLDocumentProvider_isModifiable, ex);
+					// Error message to log was initially taken from org.eclipse.gmf.runtime.diagram.ui.resources.editor.ide.internal.l10n.EditorMessages.StorageDocumentProvider_isModifiable
+				}
+			}
+			return info.isReadOnly();
+		}
+		return super.isReadOnly(element);
+	}
+
+	/**
+	 * @generated
+	 */
+	public boolean isModifiable(Object element) {
+		if (!isStateValidated(element)) {
+			if (element instanceof FileEditorInput
+					|| element instanceof URIEditorInput) {
+				return true;
+			}
+		}
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			if (info.isUpdateCache()) {
+				try {
+					updateCache(element);
+				} catch (CoreException ex) {
+					UMLDiagramEditorPlugin.getInstance().logError(
+							Messages.UMLDocumentProvider_isModifiable, ex);
+					// Error message to log was initially taken from org.eclipse.gmf.runtime.diagram.ui.resources.editor.ide.internal.l10n.EditorMessages.StorageDocumentProvider_isModifiable
+				}
+			}
+			return info.isModifiable();
+		}
+		return super.isModifiable(element);
+	}
+
+	/**
+	 * @generated
+	 */
+	protected void updateCache(Object element) throws CoreException {
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
+					.hasNext();) {
+				Resource nextResource = it.next();
+				IFile file = WorkspaceSynchronizer.getFile(nextResource);
+				if (file != null && file.isReadOnly()) {
+					info.setReadOnly(true);
+					info.setModifiable(false);
+					return;
+				}
+			}
+			info.setReadOnly(false);
+			info.setModifiable(true);
+			return;
+		}
+	}
+
+	/**
+	 * @generated
+	 */
+	protected void doUpdateStateCache(Object element) throws CoreException {
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			info.setUpdateCache(true);
+		}
+		super.doUpdateStateCache(element);
+	}
+
+	/**
+	 * @generated
+	 */
+	public boolean isSynchronized(Object element) {
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			return info.isSynchronized();
+		}
+		return super.isSynchronized(element);
+	}
+
+	/**
+	 * @generated
+	 */
+	protected ISchedulingRule getResetRule(Object element) {
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			LinkedList<ISchedulingRule> rules = new LinkedList<ISchedulingRule>();
+			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
+					.hasNext();) {
+				Resource nextResource = it.next();
+				IFile file = WorkspaceSynchronizer.getFile(nextResource);
+				if (file != null) {
+					rules.add(ResourcesPlugin.getWorkspace().getRuleFactory()
+							.modifyRule(file));
+				}
+			}
+			return new MultiRule(
+					(ISchedulingRule[]) rules.toArray(new ISchedulingRule[rules
+							.size()]));
+		}
+		return null;
+	}
+
+	/**
+	 * @generated
+	 */
+	protected ISchedulingRule getSaveRule(Object element) {
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			LinkedList<ISchedulingRule> rules = new LinkedList<ISchedulingRule>();
+			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
+					.hasNext();) {
+				Resource nextResource = it.next();
+				IFile file = WorkspaceSynchronizer.getFile(nextResource);
+				if (file != null) {
+					rules.add(computeSchedulingRule(file));
+				}
+			}
+			return new MultiRule(
+					(ISchedulingRule[]) rules.toArray(new ISchedulingRule[rules
+							.size()]));
+		}
+		return null;
+	}
+
+	/**
+	 * @generated
+	 */
+	protected ISchedulingRule getSynchronizeRule(Object element) {
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			LinkedList<ISchedulingRule> rules = new LinkedList<ISchedulingRule>();
+			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
+					.hasNext();) {
+				Resource nextResource = it.next();
+				IFile file = WorkspaceSynchronizer.getFile(nextResource);
+				if (file != null) {
+					rules.add(ResourcesPlugin.getWorkspace().getRuleFactory()
+							.refreshRule(file));
+				}
+			}
+			return new MultiRule(
+					(ISchedulingRule[]) rules.toArray(new ISchedulingRule[rules
+							.size()]));
+		}
+		return null;
+	}
+
+	/**
+	 * @generated
+	 */
+	protected ISchedulingRule getValidateStateRule(Object element) {
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			LinkedList<ISchedulingRule> files = new LinkedList<ISchedulingRule>();
+			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
+					.hasNext();) {
+				Resource nextResource = it.next();
+				IFile file = WorkspaceSynchronizer.getFile(nextResource);
+				if (file != null) {
+					files.add(file);
+				}
+			}
+			return ResourcesPlugin
+					.getWorkspace()
+					.getRuleFactory()
+					.validateEditRule(
+							(IFile[]) files.toArray(new IFile[files.size()]));
+		}
+		return null;
+	}
+
+	/**
+	 * @generated
+	 */
+	private ISchedulingRule computeSchedulingRule(IResource toCreateOrModify) {
+		if (toCreateOrModify.exists())
+			return ResourcesPlugin.getWorkspace().getRuleFactory()
+					.modifyRule(toCreateOrModify);
+
+		IResource parent = toCreateOrModify;
+		do {
+			/*
+			 * XXX This is a workaround for
+			 * https://bugs.eclipse.org/bugs/show_bug.cgi?id=67601
+			 * IResourceRuleFactory.createRule should iterate the hierarchy
+			 * itself.
+			 */
+			toCreateOrModify = parent;
+			parent = toCreateOrModify.getParent();
+		} while (parent != null && !parent.exists());
+
+		return ResourcesPlugin.getWorkspace().getRuleFactory()
+				.createRule(toCreateOrModify);
+	}
+
+	/**
+	 * @generated
+	 */
+	protected void doSynchronize(Object element, IProgressMonitor monitor)
+			throws CoreException {
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
+					.hasNext();) {
+				Resource nextResource = it.next();
+				handleElementChanged(info, nextResource, monitor);
+			}
+			return;
+		}
+		super.doSynchronize(element, monitor);
+	}
+
+	/**
+	 * @generated
+	 */
+	protected void doSaveDocument(IProgressMonitor monitor, Object element,
+			IDocument document, boolean overwrite) throws CoreException {
+		ResourceSetInfo info = getResourceSetInfo(element);
+		if (info != null) {
+			if (!overwrite && !info.isSynchronized()) {
+				throw new CoreException(
+						new Status(
+								IStatus.ERROR,
+								UMLDiagramEditorPlugin.ID,
+								IResourceStatus.OUT_OF_SYNC_LOCAL,
+								Messages.UMLDocumentProvider_UnsynchronizedFileSaveError,
+								null));
+			}
+			info.stopResourceListening();
+			fireElementStateChanging(element);
+			try {
+				monitor.beginTask(Messages.UMLDocumentProvider_SaveDiagramTask,
+						info.getResourceSet().getResources().size() + 1); //"Saving diagram"
+				for (Iterator<Resource> it = info.getLoadedResourcesIterator(); it
+						.hasNext();) {
+					Resource nextResource = it.next();
+					monitor.setTaskName(NLS.bind(
+							Messages.UMLDocumentProvider_SaveNextResourceTask,
+							nextResource.getURI()));
+					if (nextResource.isLoaded()
+							&& !info.getEditingDomain()
+									.isReadOnly(nextResource)) {
+						try {
+							nextResource.save(UMLDiagramEditorUtil
+									.getSaveOptions());
+						} catch (IOException e) {
+							fireElementStateChangeFailed(element);
+							throw new CoreException(new Status(IStatus.ERROR,
+									UMLDiagramEditorPlugin.ID,
+									EditorStatusCodes.RESOURCE_FAILURE,
+									e.getLocalizedMessage(), null));
+						}
+					}
+					monitor.worked(1);
+				}
+				monitor.done();
+				info.setModificationStamp(computeModificationStamp(info));
+			} catch (RuntimeException x) {
+				fireElementStateChangeFailed(element);
+				throw x;
+			} finally {
+				info.startResourceListening();
+			}
+		} else {
+			URI newResoruceURI;
+			List<IFile> affectedFiles = null;
+			if (element instanceof FileEditorInput) {
+				IFile newFile = ((FileEditorInput) element).getFile();
+				affectedFiles = Collections.singletonList(newFile);
+				newResoruceURI = URI.createPlatformResourceURI(newFile
+						.getFullPath().toString(), true);
+			} else if (element instanceof URIEditorInput) {
+				newResoruceURI = ((URIEditorInput) element).getURI();
+			} else {
+				fireElementStateChangeFailed(element);
+				throw new CoreException(
+						new Status(
+								IStatus.ERROR,
+								UMLDiagramEditorPlugin.ID,
+								0,
+								NLS.bind(
+										Messages.UMLDocumentProvider_IncorrectInputError,
+										new Object[] {
+												element,
+												"org.eclipse.ui.part.FileEditorInput", "org.eclipse.emf.common.ui.URIEditorInput" }), //$NON-NLS-1$ //$NON-NLS-2$ 
+								null));
+			}
+			if (false == document instanceof IDiagramDocument) {
+				fireElementStateChangeFailed(element);
+				throw new CoreException(
+						new Status(
+								IStatus.ERROR,
+								UMLDiagramEditorPlugin.ID,
+								0,
+								"Incorrect document used: " + document + " instead of org.eclipse.gmf.runtime.diagram.ui.resources.editor.document.IDiagramDocument", null)); //$NON-NLS-1$ //$NON-NLS-2$
+			}
+			IDiagramDocument diagramDocument = (IDiagramDocument) document;
+			final Resource newResource = diagramDocument.getEditingDomain()
+					.getResourceSet().createResource(newResoruceURI);
+			final Diagram diagramCopy = (Diagram) EcoreUtil
+					.copy(diagramDocument.getDiagram());
+			try {
+				new AbstractTransactionalCommand(
+						diagramDocument.getEditingDomain(), NLS.bind(
+								Messages.UMLDocumentProvider_SaveAsOperation,
+								diagramCopy.getName()), affectedFiles) {
+					protected CommandResult doExecuteWithResult(
+							IProgressMonitor monitor, IAdaptable info)
+							throws ExecutionException {
+						newResource.getContents().add(diagramCopy);
+						return CommandResult.newOKCommandResult();
+					}
+				}.execute(monitor, null);
+				newResource.save(UMLDiagramEditorUtil.getSaveOptions());
+			} catch (ExecutionException e) {
+				fireElementStateChangeFailed(element);
+				throw new CoreException(new Status(IStatus.ERROR,
+						UMLDiagramEditorPlugin.ID, 0, e.getLocalizedMessage(),
+						null));
+			} catch (IOException e) {
+				fireElementStateChangeFailed(element);
+				throw new CoreException(new Status(IStatus.ERROR,
+						UMLDiagramEditorPlugin.ID, 0, e.getLocalizedMessage(),
+						null));
+			}
+			newResource.unload();
+		}
+	}
+
+	/**
+	 * @generated
+	 */
+	protected void handleElementChanged(ResourceSetInfo info,
+			Resource changedResource, IProgressMonitor monitor) {
+		IFile file = WorkspaceSynchronizer.getFile(changedResource);
+		if (file != null) {
+			try {
+				file.refreshLocal(IResource.DEPTH_INFINITE, monitor);
+			} catch (CoreException ex) {
+				UMLDiagramEditorPlugin
+						.getInstance()
+						.logError(
+								Messages.UMLDocumentProvider_handleElementContentChanged,
+								ex);
+				// Error message to log was initially taken from org.eclipse.gmf.runtime.diagram.ui.resources.editor.ide.internal.l10n.EditorMessages.FileDocumentProvider_handleElementContentChanged
+			}
+		}
+		changedResource.unload();
+
+		fireElementContentAboutToBeReplaced(info.getEditorInput());
+		removeUnchangedElementListeners(info.getEditorInput(), info);
+		info.fStatus = null;
+		try {
+			setDocumentContent(info.fDocument, info.getEditorInput());
+		} catch (CoreException e) {
+			info.fStatus = e.getStatus();
+		}
+		if (!info.fCanBeSaved) {
+			info.setModificationStamp(computeModificationStamp(info));
+		}
+		addUnchangedElementListeners(info.getEditorInput(), info);
+		fireElementContentReplaced(info.getEditorInput());
+	}
+
+	/**
+	 * @generated
+	 */
+	protected void handleElementMoved(IEditorInput input, URI uri) {
+		if (input instanceof FileEditorInput) {
+			IFile newFile = ResourcesPlugin
+					.getWorkspace()
+					.getRoot()
+					.getFile(
+							new Path(URI.decode(uri.path()))
+									.removeFirstSegments(1));
+			fireElementMoved(input, newFile == null ? null
+					: new FileEditorInput(newFile));
+			return;
+		}
+		// TODO: append suffix to the URI! (use diagram as a parameter)
+		fireElementMoved(input, new URIEditorInput(uri));
+	}
+
+	/**
+	 * @generated
+	 */
+	public IEditorInput createInputWithEditingDomain(IEditorInput editorInput,
+			TransactionalEditingDomain domain) {
+		return editorInput;
+	}
+
+	/**
+	 * @generated
+	 */
+	public IDiagramDocument getDiagramDocument(Object element) {
+		IDocument doc = getDocument(element);
+		if (doc instanceof IDiagramDocument) {
+			return (IDiagramDocument) doc;
+		}
+		return null;
+	}
+
+	/**
+	 * @generated
+	 */
+	protected IRunnableContext getOperationRunner(IProgressMonitor monitor) {
+		return null;
+	}
+
+	/**
+	 * @generated
+	 */
+	protected class ResourceSetInfo extends ElementInfo {
+
+		/**
+		 * @generated
+		 */
+		private long myModificationStamp = IResource.NULL_STAMP;
+
+		/**
+		 * @generated
+		 */
+		private WorkspaceSynchronizer mySynchronizer;
+
+		/**
+		 * @generated
+		 */
+		private LinkedList<Resource> myUnSynchronizedResources = new LinkedList<Resource>();
+
+		/**
+		 * @generated
+		 */
+		private IDiagramDocument myDocument;
+
+		/**
+		 * @generated
+		 */
+		private IEditorInput myEditorInput;
+
+		/**
+		 * @generated
+		 */
+		private boolean myUpdateCache = true;
+
+		/**
+		 * @generated
+		 */
+		private boolean myModifiable = false;
+
+		/**
+		 * @generated
+		 */
+		private boolean myReadOnly = true;
+
+		/**
+		 * @generated
+		 */
+		private ResourceSetModificationListener myResourceSetListener;
+
+		/**
+		 * @generated
+		 */
+		public ResourceSetInfo(IDiagramDocument document,
+				IEditorInput editorInput) {
+			super(document);
+			myDocument = document;
+			myEditorInput = editorInput;
+			startResourceListening();
+			myResourceSetListener = new ResourceSetModificationListener(this);
+			getResourceSet().eAdapters().add(myResourceSetListener);
+		}
+
+		/**
+		 * @generated
+		 */
+		public long getModificationStamp() {
+			return myModificationStamp;
+		}
+
+		/**
+		 * @generated
+		 */
+		public void setModificationStamp(long modificationStamp) {
+			myModificationStamp = modificationStamp;
+		}
+
+		/**
+		 * @generated
+		 */
+		public TransactionalEditingDomain getEditingDomain() {
+			return myDocument.getEditingDomain();
+		}
+
+		/**
+		 * @generated
+		 */
+		public ResourceSet getResourceSet() {
+			return getEditingDomain().getResourceSet();
+		}
+
+		/**
+		 * @generated
+		 */
+		public Iterator<Resource> getLoadedResourcesIterator() {
+			return new ArrayList<Resource>(getResourceSet().getResources())
+					.iterator();
+		}
+
+		/**
+		 * @generated
+		 */
+		public IEditorInput getEditorInput() {
+			return myEditorInput;
+		}
+
+		/**
+		 * @generated
+		 */
+		public void dispose() {
+			stopResourceListening();
+			getResourceSet().eAdapters().remove(myResourceSetListener);
+			for (Iterator<Resource> it = getLoadedResourcesIterator(); it
+					.hasNext();) {
+				Resource resource = it.next();
+				resource.unload();
+			}
+			getEditingDomain().dispose();
+		}
+
+		/**
+		 * @generated
+		 */
+		public boolean isSynchronized() {
+			return myUnSynchronizedResources.size() == 0;
+		}
+
+		/**
+		 * @generated
+		 */
+		public void setUnSynchronized(Resource resource) {
+			myUnSynchronizedResources.add(resource);
+		}
+
+		/**
+		 * @generated
+		 */
+		public void setSynchronized(Resource resource) {
+			myUnSynchronizedResources.remove(resource);
+		}
+
+		/**
+		 * @generated
+		 */
+		public final void stopResourceListening() {
+			mySynchronizer.dispose();
+			mySynchronizer = null;
+		}
+
+		/**
+		 * @generated
+		 */
+		public final void startResourceListening() {
+			mySynchronizer = new WorkspaceSynchronizer(getEditingDomain(),
+					new SynchronizerDelegate());
+		}
+
+		/**
+		 * @generated
+		 */
+		public boolean isUpdateCache() {
+			return myUpdateCache;
+		}
+
+		/**
+		 * @generated
+		 */
+		public void setUpdateCache(boolean update) {
+			myUpdateCache = update;
+		}
+
+		/**
+		 * @generated
+		 */
+		public boolean isModifiable() {
+			return myModifiable;
+		}
+
+		/**
+		 * @generated
+		 */
+		public void setModifiable(boolean modifiable) {
+			myModifiable = modifiable;
+		}
+
+		/**
+		 * @generated
+		 */
+		public boolean isReadOnly() {
+			return myReadOnly;
+		}
+
+		/**
+		 * @generated
+		 */
+		public void setReadOnly(boolean readOnly) {
+			myReadOnly = readOnly;
+		}
+
+		/**
+		 * @generated
+		 */
+		private class SynchronizerDelegate implements
+				WorkspaceSynchronizer.Delegate {
+
+			/**
+			 * @generated
+			 */
+			public void dispose() {
+			}
+
+			/**
+			 * @generated
+			 */
+			public boolean handleResourceChanged(final Resource resource) {
+				synchronized (ResourceSetInfo.this) {
+					if (ResourceSetInfo.this.fCanBeSaved) {
+						ResourceSetInfo.this.setUnSynchronized(resource);
+						return true;
+					}
+				}
+				Display.getDefault().asyncExec(new Runnable() {
+					public void run() {
+						handleElementChanged(ResourceSetInfo.this, resource,
+								null);
+					}
+				});
+				return true;
+			}
+
+			/**
+			 * @generated
+			 */
+			public boolean handleResourceDeleted(Resource resource) {
+				synchronized (ResourceSetInfo.this) {
+					if (ResourceSetInfo.this.fCanBeSaved) {
+						ResourceSetInfo.this.setUnSynchronized(resource);
+						return true;
+					}
+				}
+				Display.getDefault().asyncExec(new Runnable() {
+					public void run() {
+						fireElementDeleted(ResourceSetInfo.this
+								.getEditorInput());
+					}
+				});
+				return true;
+			}
+
+			/**
+			 * @generated
+			 */
+			public boolean handleResourceMoved(Resource resource,
+					final URI newURI) {
+				synchronized (ResourceSetInfo.this) {
+					if (ResourceSetInfo.this.fCanBeSaved) {
+						ResourceSetInfo.this.setUnSynchronized(resource);
+						return true;
+					}
+				}
+				if (myDocument.getDiagram().eResource() == resource) {
+					Display.getDefault().asyncExec(new Runnable() {
+						public void run() {
+							handleElementMoved(
+									ResourceSetInfo.this.getEditorInput(),
+									newURI);
+						}
+					});
+				} else {
+					handleResourceDeleted(resource);
+				}
+				return true;
+			}
+
+		}
+
+	}
+
+	/**
+	 * @generated
+	 */
+	private class ResourceSetModificationListener extends EContentAdapter {
+
+		/**
+		 * @generated
+		 */
+		private NotificationFilter myModifiedFilter;
+
+		/**
+		 * @generated
+		 */
+		private ResourceSetInfo myInfo;
+
+		/**
+		 * @generated
+		 */
+		public ResourceSetModificationListener(ResourceSetInfo info) {
+			myInfo = info;
+			myModifiedFilter = NotificationFilter
+					.createEventTypeFilter(Notification.SET)
+					.or(NotificationFilter
+							.createEventTypeFilter(Notification.UNSET))
+					.and(NotificationFilter.createFeatureFilter(Resource.class,
+							Resource.RESOURCE__IS_MODIFIED));
+		}
+
+		/**
+		 * @generated
+		 */
+		public void notifyChanged(Notification notification) {
+			if (notification.getNotifier() instanceof ResourceSet) {
+				super.notifyChanged(notification);
+			}
+			if (!notification.isTouch()
+					&& myModifiedFilter.matches(notification)) {
+				if (notification.getNotifier() instanceof Resource) {
+					Resource resource = (Resource) notification.getNotifier();
+					if (resource.isLoaded()) {
+						boolean modified = false;
+						for (Iterator/*<org.eclipse.emf.ecore.resource.Resource>*/it = myInfo
+								.getLoadedResourcesIterator(); it.hasNext()
+								&& !modified;) {
+							Resource nextResource = (Resource) it.next();
+							if (nextResource.isLoaded()) {
+								modified = nextResource.isModified();
+							}
+						}
+						boolean dirtyStateChanged = false;
+						synchronized (myInfo) {
+							if (modified != myInfo.fCanBeSaved) {
+								myInfo.fCanBeSaved = modified;
+								dirtyStateChanged = true;
+							}
+							if (!resource.isModified()) {
+								myInfo.setSynchronized(resource);
+							}
+						}
+						if (dirtyStateChanged) {
+							fireElementDirtyStateChanged(
+									myInfo.getEditorInput(), modified);
+
+							if (!modified) {
+								myInfo.setModificationStamp(computeModificationStamp(myInfo));
+							}
+						}
+					}
+				}
+			}
+		}
+
+	}
+
+}