FCL/sftools/dev/eclipseenv/eclipse: comparison platform35/org.eclipse.core.resources/src/org/eclipse/core/internal/resources/ResourceTree.java

equal deleted inserted replaced

-:2a03ec4dbf31
+:eb3c938c7fef
+/*******************************************************************************
+* Copyright (c) 2000, 2008 IBM Corporation and others.
+* All rights reserved. This program and the accompanying materials
+* are made available under the terms of the Eclipse Public License v1.0
+* which accompanies this distribution, and is available at
+* http://www.eclipse.org/legal/epl-v10.html
+*
+* Contributors:
+*     IBM Corporation - initial API and implementation
+*******************************************************************************/
+package org.eclipse.core.internal.resources;
+import java.net.URI;
+import org.eclipse.core.filesystem.*;
+import org.eclipse.core.filesystem.URIUtil;
+import org.eclipse.core.internal.localstore.FileSystemResourceManager;
+import org.eclipse.core.internal.properties.IPropertyManager;
+import org.eclipse.core.internal.utils.*;
+import org.eclipse.core.resources.*;
+import org.eclipse.core.resources.team.IResourceTree;
+import org.eclipse.core.runtime.*;
+import org.eclipse.core.runtime.jobs.ILock;
+import org.eclipse.osgi.util.NLS;
+/**
+* @since 2.0
+*
+* Implementation note: Since the move/delete hook involves running third
+* party code, the workspace lock is not held.  This means the workspace
+* lock must be re-acquired whenever we need to manipulate the workspace
+* in any way.  All entry points from third party code back into the tree must
+* be done in an acquire/release pair.
+*/
+class ResourceTree implements IResourceTree {
+	private boolean isValid = true;
+	private final FileSystemResourceManager localManager;
+	/**
+	 * The lock to acquire when the workspace needs to be manipulated
+	 */
+	private ILock lock;
+	private MultiStatus multistatus;
+	private int updateFlags;
+	/**
+	 * Constructor for this class.
+	 */
+	public ResourceTree(FileSystemResourceManager localManager, ILock lock, MultiStatus status, int updateFlags) {
+		super();
+		this.localManager = localManager;
+		this.lock = lock;
+		this.multistatus = status;
+		this.updateFlags = updateFlags;
+	}
+	/**
+	 * @see IResourceTree#addToLocalHistory(IFile)
+	 */
+	public void addToLocalHistory(IFile file) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			if (!file.exists())
+				return;
+			IFileStore store = localManager.getStore(file);
+			final IFileInfo fileInfo = store.fetchInfo();
+			if (!fileInfo.exists())
+				return;
+			localManager.getHistoryStore().addState(file.getFullPath(), store, fileInfo, false);
+		} finally {
+			lock.release();
+		}
+	}
+	private IFileStore computeDestinationStore(IProjectDescription destDescription) throws CoreException {
+		URI destLocation = destDescription.getLocationURI();
+		// Use the default area if necessary for the destination.
+		if (destLocation == null) {
+			IPath rootLocation = ResourcesPlugin.getWorkspace().getRoot().getLocation();
+			destLocation = rootLocation.append(destDescription.getName()).toFile().toURI();
+		}
+		return EFS.getStore(destLocation);
+	}
+	/**
+	 * @see IResourceTree#computeTimestamp(IFile)
+	 */
+	public long computeTimestamp(IFile file) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			if (!file.getProject().exists())
+				return NULL_TIMESTAMP;
+			return internalComputeTimestamp(file);
+		} finally {
+			lock.release();
+		}
+	}
+	/**
+	 * Copies the local history of source to destination.  Note that if source
+	 * is an IFolder, it is assumed that the same structure exists under destination
+	 * and the local history of any IFile under source will be copied to the
+	 * associated IFile under destination.
+	 */
+	private void copyLocalHistory(IResource source, IResource destination) {
+		localManager.getHistoryStore().copyHistory(source, destination, true);
+	}
+	/**
+	 * @see IResourceTree#deletedFile(IFile)
+	 */
+	public void deletedFile(IFile file) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			// Do nothing if the resource doesn't exist.
+			if (!file.exists())
+				return;
+			try {
+				// Delete properties, generate marker deltas, and remove the node from the workspace tree.
+				((Resource) file).deleteResource(true, null);
+			} catch (CoreException e) {
+				String message = NLS.bind(Messages.resources_errorDeleting, file.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, file.getFullPath(), message, e);
+				failed(status);
+			}
+		} finally {
+			lock.release();
+		}
+	}
+	/**
+	 * @see IResourceTree#deletedFolder(IFolder)
+	 */
+	public void deletedFolder(IFolder folder) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			// Do nothing if the resource doesn't exist.
+			if (!folder.exists())
+				return;
+			try {
+				// Delete properties, generate marker deltas, and remove the node from the workspace tree.
+				((Resource) folder).deleteResource(true, null);
+			} catch (CoreException e) {
+				String message = NLS.bind(Messages.resources_errorDeleting, folder.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, folder.getFullPath(), message, e);
+				failed(status);
+			}
+		} finally {
+			lock.release();
+		}
+	}
+	/**
+	 * @see IResourceTree#deletedProject(IProject)
+	 */
+	public void deletedProject(IProject target) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			// Do nothing if the resource doesn't exist.
+			if (!target.exists())
+				return;
+			// Delete properties, generate marker deltas, and remove the node from the workspace tree.
+			try {
+				((Project) target).deleteResource(false, null);
+			} catch (CoreException e) {
+				String message = NLS.bind(Messages.resources_errorDeleting, target.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, target.getFullPath(), message, e);
+				// log the status but don't return until we try and delete the rest of the project info
+				failed(status);
+			}
+		} finally {
+			lock.release();
+		}
+	}
+	/**
+	 * Makes sure that the destination directory for a project move is unoccupied.
+	 * Returns true if successful, and false if the move should be aborted
+	 */
+	private boolean ensureDestinationEmpty(IProject source, IFileStore destinationStore, IProgressMonitor monitor) throws CoreException {
+		String message;
+		//Make sure the destination location is unoccupied
+		if (!destinationStore.fetchInfo().exists())
+			return true;
+		//check for existing children
+		if (destinationStore.childNames(EFS.NONE, Policy.subMonitorFor(monitor, 0)).length > 0) {
+			//allow case rename to proceed
+			if (((Resource) source).getStore().equals(destinationStore))
+				return true;
+			//fail because the destination is occupied
+			message = NLS.bind(Messages.localstore_resourceExists, destinationStore);
+			IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message, null);
+			failed(status);
+			return false;
+		}
+		//delete the destination directory to allow for efficient renaming
+		destinationStore.delete(EFS.NONE, Policy.subMonitorFor(monitor, 0));
+		return true;
+	}
+	/**
+	 * This operation has failed for the given reason. Add it to this
+	 * resource tree's status.
+	 */
+	public void failed(IStatus reason) {
+		Assert.isLegal(isValid);
+		multistatus.add(reason);
+	}
+	/**
+	 * Returns the status object held onto by this resource tree.
+	 */
+	protected IStatus getStatus() {
+		return multistatus;
+	}
+	/**
+	 * @see IResourceTree#getTimestamp(IFile)
+	 */
+	public long getTimestamp(IFile file) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			if (!file.exists())
+				return NULL_TIMESTAMP;
+			ResourceInfo info = ((File) file).getResourceInfo(false, false);
+			return info == null ? NULL_TIMESTAMP : info.getLocalSyncInfo();
+		} finally {
+			lock.release();
+		}
+	}
+	/**
+	 * Returns the local timestamp for a file.
+	 *
+	 * @param file
+	 * @return The local file system timestamp
+	 */
+	private long internalComputeTimestamp(IFile file) {
+		IFileInfo fileInfo = localManager.getStore(file).fetchInfo();
+		return fileInfo.exists() ? fileInfo.getLastModified() : NULL_TIMESTAMP;
+	}
+	/**
+	 * Helper method for #standardDeleteFile. Returns a boolean indicating whether or
+	 * not the delete was successful.
+	 */
+	private boolean internalDeleteFile(IFile file, int flags, IProgressMonitor monitor) {
+		try {
+			String message = NLS.bind(Messages.resources_deleting, file.getFullPath());
+			monitor.beginTask(message, Policy.totalWork);
+			Policy.checkCanceled(monitor);
+			// Do nothing if the file doesn't exist in the workspace.
+			if (!file.exists()) {
+				// Indicate that the delete was successful.
+				return true;
+			}
+			// Don't delete contents if this is a linked resource
+			if (file.isLinked()) {
+				deletedFile(file);
+				return true;
+			}
+			// If the file doesn't exist on disk then signal to the workspace to delete the
+			// file and return.
+			IFileStore fileStore = localManager.getStore(file);
+			boolean localExists = fileStore.fetchInfo().exists();
+			if (!localExists) {
+				deletedFile(file);
+				// Indicate that the delete was successful.
+				return true;
+			}
+			boolean keepHistory = (flags & IResource.KEEP_HISTORY) != 0;
+			boolean force = (flags & IResource.FORCE) != 0;
+			// Add the file to the local history if requested by the user.
+			if (keepHistory)
+				addToLocalHistory(file);
+			monitor.worked(Policy.totalWork / 4);
+			// We want to fail if force is false and the file is not synchronized with the
+			// local file system.
+			if (!force) {
+				boolean inSync = isSynchronized(file, IResource.DEPTH_ZERO);
+				// only want to fail if the file still exists.
+				if (!inSync && localExists) {
+					message = NLS.bind(Messages.localstore_resourceIsOutOfSync, file.getFullPath());
+					IStatus status = new ResourceStatus(IResourceStatus.OUT_OF_SYNC_LOCAL, file.getFullPath(), message);
+					failed(status);
+					// Indicate that the delete was unsuccessful.
+					return false;
+				}
+			}
+			monitor.worked(Policy.totalWork / 4);
+			// Try to delete the file from the file system.
+			try {
+				fileStore.delete(EFS.NONE, Policy.subMonitorFor(monitor, Policy.totalWork / 4));
+				// If the file was successfully deleted from the file system the
+				// workspace tree should be updated accordingly.
+				deletedFile(file);
+				// Indicate that the delete was successful.
+				return true;
+			} catch (CoreException e) {
+				message = NLS.bind(Messages.resources_couldnotDelete, fileStore.toString());
+				IStatus status = new ResourceStatus(IResourceStatus.FAILED_DELETE_LOCAL, file.getFullPath(), message, e);
+				failed(status);
+			}
+			// Indicate that the delete was unsuccessful.
+			return false;
+		} finally {
+			monitor.done();
+		}
+	}
+	/**
+	 * Helper method for #standardDeleteFolder. Returns a boolean indicating
+	 * whether or not the deletion of this folder was successful. Does a best effort
+	 * delete of this resource and its children.
+	 */
+	private boolean internalDeleteFolder(IFolder folder, int flags, IProgressMonitor monitor) {
+		String message = NLS.bind(Messages.resources_deleting, folder.getFullPath());
+		monitor.beginTask("", Policy.totalWork); //$NON-NLS-1$
+		monitor.subTask(message);
+		Policy.checkCanceled(monitor);
+		// Do nothing if the folder doesn't exist in the workspace.
+		if (!folder.exists())
+			return true;
+		// Don't delete contents if this is a linked resource
+		if (folder.isLinked()) {
+			deletedFolder(folder);
+			return true;
+		}
+		// If the folder doesn't exist on disk then update the tree and return.
+		IFileStore fileStore = localManager.getStore(folder);
+		if (!fileStore.fetchInfo().exists()) {
+			deletedFolder(folder);
+			return true;
+		}
+		try {
+			//this will delete local and workspace
+			localManager.delete(folder, flags, Policy.subMonitorFor(monitor, Policy.totalWork));
+		} catch (CoreException ce) {
+			message = NLS.bind(Messages.localstore_couldnotDelete, folder.getFullPath());
+			IStatus status = new ResourceStatus(IStatus.ERROR, IResourceStatus.FAILED_DELETE_LOCAL, folder.getFullPath(), message, ce);
+			failed(status);
+			return false;
+		}
+		return true;
+	}
+	/**
+	 * Does a best-effort delete on this resource and all its children.
+	 */
+	private boolean internalDeleteProject(IProject project, int flags, IProgressMonitor monitor) {
+		// Recursively delete each member of the project.
+		IResource[] members = null;
+		try {
+			members = project.members(IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS | IContainer.INCLUDE_HIDDEN);
+		} catch (CoreException e) {
+			String message = NLS.bind(Messages.resources_errorMembers, project.getFullPath());
+			IStatus status = new ResourceStatus(IStatus.ERROR, project.getFullPath(), message, e);
+			failed(status);
+			// Indicate that the delete was unsuccessful.
+			return false;
+		}
+		boolean deletedChildren = true;
+		for (int i = 0; i < members.length; i++) {
+			IResource child = members[i];
+			switch (child.getType()) {
+				case IResource.FILE :
+					// ignore the .project file for now and delete it last
+					if (!IProjectDescription.DESCRIPTION_FILE_NAME.equals(child.getName()))
+						deletedChildren &= internalDeleteFile((IFile) child, flags, Policy.subMonitorFor(monitor, Policy.totalWork / members.length));
+					break;
+				case IResource.FOLDER :
+					deletedChildren &= internalDeleteFolder((IFolder) child, flags, Policy.subMonitorFor(monitor, Policy.totalWork / members.length));
+					break;
+			}
+		}
+		IFileStore projectStore = localManager.getStore(project);
+		// Check to see if the children were deleted ok. If there was a problem
+		// just return as the problem should have been logged by the recursive
+		// call to the child.
+		if (!deletedChildren)
+			// Indicate that the delete was unsuccessful.
+			return false;
+		//Check if there are any undiscovered children of the project on disk other than description file
+		String[] children;
+		try {
+			children = projectStore.childNames(EFS.NONE, null);
+		} catch (CoreException e) {
+			//treat failure to access the directory as a non-existent directory
+			children = new String[0];
+		}
+		boolean force = BitMask.isSet(flags, IResource.FORCE);
+		if (!force && (children.length != 1 || !IProjectDescription.DESCRIPTION_FILE_NAME.equals(children[0]))) {
+			String message = NLS.bind(Messages.localstore_resourceIsOutOfSync, project.getName());
+			failed(new ResourceStatus(IResourceStatus.OUT_OF_SYNC_LOCAL, project.getFullPath(), message));
+			return false;
+		}
+		//Now delete the project description file
+		IResource file = project.findMember(IProjectDescription.DESCRIPTION_FILE_NAME);
+		if (file == null) {
+			//the .project have may have been recreated on disk automatically by snapshot
+			IFileStore dotProject = projectStore.getChild(IProjectDescription.DESCRIPTION_FILE_NAME);
+			try {
+				dotProject.delete(EFS.NONE, null);
+			} catch (CoreException e) {
+				failed(e.getStatus());
+			}
+		} else {
+			boolean deletedProjectFile = internalDeleteFile((IFile) file, flags, Policy.monitorFor(null));
+			if (!deletedProjectFile) {
+				String message = NLS.bind(Messages.resources_couldnotDelete, file.getFullPath());
+				IStatus status = new ResourceStatus(IResourceStatus.FAILED_DELETE_LOCAL, file.getFullPath(), message);
+				failed(status);
+				// Indicate that the delete was unsuccessful.
+				return false;
+			}
+		}
+		//children are deleted, so now delete the parent
+		try {
+			projectStore.delete(EFS.NONE, null);
+			deletedProject(project);
+			// Indicate that the delete was successful.
+			return true;
+		} catch (CoreException e) {
+			String message = NLS.bind(Messages.resources_couldnotDelete, projectStore.toString());
+			IStatus status = new ResourceStatus(IResourceStatus.FAILED_DELETE_LOCAL, project.getFullPath(), message, e);
+			failed(status);
+			// Indicate that the delete was unsuccessful.
+			return false;
+		}
+	}
+	/**
+	 * Return <code>true</code> if there is a change in the content area for the project.
+	 */
+	private boolean isContentChange(IProject project, IProjectDescription destDescription) {
+		IProjectDescription srcDescription = ((Project) project).internalGetDescription();
+		URI srcLocation = srcDescription.getLocationURI();
+		URI destLocation = destDescription.getLocationURI();
+		if (srcLocation == null || destLocation == null)
+			return true;
+		//don't use URIUtil because we want to treat case rename as a content change
+		return !srcLocation.equals(destLocation);
+	}
+	/**
+	 * Return <code>true</code> if there is a change in the name of the project.
+	 */
+	private boolean isNameChange(IProject project, IProjectDescription description) {
+		return !project.getName().equals(description.getName());
+	}
+	/**
+	 * Refreshes the resource hierarchy with its children. In case of failure
+	 * adds an appropriate status to the resource tree's status.
+	 */
+	private void safeRefresh(IResource resource) {
+		try {
+			resource.refreshLocal(IResource.DEPTH_INFINITE, new NullProgressMonitor());
+		} catch (CoreException ce) {
+			IStatus status = new ResourceStatus(IStatus.ERROR, IResourceStatus.FAILED_DELETE_LOCAL, resource.getFullPath(), Messages.refresh_refreshErr, ce);
+			failed(status);
+		}
+	}
+	/**
+	 * @see IResourceTree#isSynchronized(IResource, int)
+	 */
+	public boolean isSynchronized(IResource resource, int depth) {
+		try {
+			lock.acquire();
+			return localManager.isSynchronized(resource, depth);
+		} finally {
+			lock.release();
+		}
+	}
+	/**
+	 * The specific operation for which this tree was created has completed and this tree
+	 * should not be used anymore. Ensure that this is the case by making it invalid. This
+	 * is checked by all API methods.
+	 */
+	void makeInvalid() {
+		this.isValid = false;
+	}
+	/**
+	 * @see IResourceTree#movedFile(IFile, IFile)
+	 */
+	public void movedFile(IFile source, IFile destination) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			// Do nothing if the resource doesn't exist.
+			if (!source.exists())
+				return;
+			// If the destination already exists then we have a problem.
+			if (destination.exists()) {
+				String message = NLS.bind(Messages.resources_mustNotExist, destination.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, destination.getFullPath(), message);
+				// log the status but don't return until we try and move the rest of the resource information.
+				failed(status);
+			}
+			// Move the resource's persistent properties.
+			IPropertyManager propertyManager = ((Resource) source).getPropertyManager();
+			try {
+				propertyManager.copy(source, destination, IResource.DEPTH_ZERO);
+				propertyManager.deleteProperties(source, IResource.DEPTH_ZERO);
+			} catch (CoreException e) {
+				String message = NLS.bind(Messages.resources_errorPropertiesMove, source.getFullPath(), destination.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message, e);
+				// log the status but don't return until we try and move the rest of the resource information.
+				failed(status);
+			}
+			// Move the node in the workspace tree.
+			Workspace workspace = (Workspace) source.getWorkspace();
+			try {
+				workspace.move((Resource) source, destination.getFullPath(), IResource.DEPTH_ZERO, updateFlags, false);
+			} catch (CoreException e) {
+				String message = NLS.bind(Messages.resources_errorMoving, source.getFullPath(), destination.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message, e);
+				// log the status but don't return until we try and move the rest of the resource information.
+				failed(status);
+			}
+			// Generate the marker deltas.
+			try {
+				workspace.getMarkerManager().moved(source, destination, IResource.DEPTH_ZERO);
+			} catch (CoreException e) {
+				String message = NLS.bind(Messages.resources_errorMarkersDelete, source.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message, e);
+				failed(status);
+			}
+			// Copy the local history information
+			copyLocalHistory(source, destination);
+		} finally {
+			lock.release();
+		}
+	}
+	/**
+	 * @see IResourceTree#movedFolderSubtree(IFolder, IFolder)
+	 */
+	public void movedFolderSubtree(IFolder source, IFolder destination) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			// Do nothing if the source resource doesn't exist.
+			if (!source.exists())
+				return;
+			// If the destination already exists then we have an error.
+			if (destination.exists()) {
+				String message = NLS.bind(Messages.resources_mustNotExist, destination.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, destination.getFullPath(), message);
+				failed(status);
+				return;
+			}
+			// Move the folder properties.
+			int depth = IResource.DEPTH_INFINITE;
+			IPropertyManager propertyManager = ((Resource) source).getPropertyManager();
+			try {
+				propertyManager.copy(source, destination, depth);
+				propertyManager.deleteProperties(source, depth);
+			} catch (CoreException e) {
+				String message = NLS.bind(Messages.resources_errorPropertiesMove, source.getFullPath(), destination.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message, e);
+				// log the status but don't return until we try and move the rest of the resource info
+				failed(status);
+			}
+			// Create the destination node in the tree.
+			Workspace workspace = (Workspace) source.getWorkspace();
+			try {
+				workspace.move((Resource) source, destination.getFullPath(), depth, updateFlags, false);
+			} catch (CoreException e) {
+				String message = NLS.bind(Messages.resources_errorMoving, source.getFullPath(), destination.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message, e);
+				// log the status but don't return until we try and move the rest of the resource info
+				failed(status);
+			}
+			// Generate the marker deltas.
+			try {
+				workspace.getMarkerManager().moved(source, destination, depth);
+			} catch (CoreException e) {
+				String message = NLS.bind(Messages.resources_errorMarkersDelete, source.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message, e);
+				failed(status);
+			}
+			// Copy the local history for this folder
+			copyLocalHistory(source, destination);
+		} finally {
+			lock.release();
+		}
+	}
+	/**
+	 * @see IResourceTree#movedProjectSubtree(IProject, IProjectDescription)
+	 */
+	public boolean movedProjectSubtree(IProject project, IProjectDescription destDescription) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			// Do nothing if the source resource doesn't exist.
+			if (!project.exists())
+				return true;
+			Project source = (Project) project;
+			Project destination = (Project) source.getWorkspace().getRoot().getProject(destDescription.getName());
+			Workspace workspace = (Workspace) source.getWorkspace();
+			int depth = IResource.DEPTH_INFINITE;
+			// If the name of the source and destination projects are not the same then
+			// rename the meta area and make changes in the tree.
+			if (isNameChange(source, destDescription)) {
+				if (destination.exists()) {
+					String message = NLS.bind(Messages.resources_mustNotExist, destination.getFullPath());
+					IStatus status = new ResourceStatus(IStatus.ERROR, destination.getFullPath(), message);
+					failed(status);
+					return false;
+				}
+				// Rename the project metadata area. Close the property store to flush everything to disk
+				try {
+					source.getPropertyManager().closePropertyStore(source);
+					localManager.getHistoryStore().closeHistoryStore(source);
+				} catch (CoreException e) {
+					String message = NLS.bind(Messages.properties_couldNotClose, source.getFullPath());
+					IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message, e);
+					// log the status but don't return until we try and move the rest of the resource info
+					failed(status);
+				}
+				final IFileSystem fileSystem = EFS.getLocalFileSystem();
+				IFileStore oldMetaArea = fileSystem.getStore(workspace.getMetaArea().locationFor(source));
+				IFileStore newMetaArea = fileSystem.getStore(workspace.getMetaArea().locationFor(destination));
+				try {
+					oldMetaArea.move(newMetaArea, EFS.NONE, new NullProgressMonitor());
+				} catch (CoreException e) {
+					String message = NLS.bind(Messages.resources_moveMeta, oldMetaArea, newMetaArea);
+					IStatus status = new ResourceStatus(IResourceStatus.FAILED_WRITE_METADATA, destination.getFullPath(), message, e);
+					// log the status but don't return until we try and move the rest of the resource info
+					failed(status);
+				}
+				// Move the workspace tree.
+				try {
+					workspace.move(source, destination.getFullPath(), depth, updateFlags, true);
+				} catch (CoreException e) {
+					String message = NLS.bind(Messages.resources_errorMoving, source.getFullPath(), destination.getFullPath());
+					IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message, e);
+					// log the status but don't return until we try and move the rest of the resource info
+					failed(status);
+				}
+				// Clear stale state on the destination project.
+				((ProjectInfo) destination.getResourceInfo(false, true)).fixupAfterMove();
+				// Generate marker deltas.
+				try {
+					workspace.getMarkerManager().moved(source, destination, depth);
+				} catch (CoreException e) {
+					String message = NLS.bind(Messages.resources_errorMarkersMove, source.getFullPath(), destination.getFullPath());
+					IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message, e);
+					// log the status but don't return until we try and move the rest of the resource info
+					failed(status);
+				}
+				// Copy the local history
+				copyLocalHistory(source, destination);
+			}
+			// Write the new project description on the destination project.
+			try {
+				//moving linked resources may have modified the description in memory
+				((ProjectDescription) destDescription).setLinkDescriptions(destination.internalGetDescription().getLinks());
+				destination.internalSetDescription(destDescription, true);
+				destination.writeDescription(IResource.FORCE);
+			} catch (CoreException e) {
+				String message = Messages.resources_projectDesc;
+				IStatus status = new ResourceStatus(IStatus.ERROR, destination.getFullPath(), message, e);
+				failed(status);
+			}
+			// write the private project description, including the project location
+			try {
+				workspace.getMetaArea().writePrivateDescription(destination);
+			} catch (CoreException e) {
+				failed(e.getStatus());
+			}
+			// Do a refresh on the destination project to pick up any newly discovered resources
+			try {
+				destination.refreshLocal(IResource.DEPTH_INFINITE, new NullProgressMonitor());
+			} catch (CoreException e) {
+				String message = NLS.bind(Messages.resources_errorRefresh, destination.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, destination.getFullPath(), message, e);
+				failed(status);
+				return false;
+			}
+			return true;
+		} finally {
+			lock.release();
+		}
+	}
+	/**
+	 * Helper method for moving the project content. Determines the content location
+	 * based on the project description. (default location or user defined?)
+	 */
+	private void moveProjectContent(IProject source, IFileStore destStore, int flags, IProgressMonitor monitor) throws CoreException {
+		try {
+			String message = NLS.bind(Messages.resources_moving, source.getFullPath());
+			monitor.beginTask(message, 10);
+			IProjectDescription srcDescription = source.getDescription();
+			URI srcLocation = srcDescription.getLocationURI();
+			// If the locations are the same (and non-default) then there is nothing to do.
+			if (srcLocation != null && URIUtil.equals(srcLocation, destStore.toURI()))
+				return;
+			//If this is a replace, just make sure the destination location exists, and return
+			boolean replace = (flags & IResource.REPLACE) != 0;
+			if (replace) {
+				destStore.mkdir(EFS.NONE, Policy.subMonitorFor(monitor, 10));
+				return;
+			}
+			// Move the contents on disk.
+			localManager.move(source, destStore, flags, Policy.subMonitorFor(monitor, 9));
+			//if this is a deep move, move the contents of any linked resources
+			if ((flags & IResource.SHALLOW) == 0) {
+				IResource[] children = source.members();
+				for (int i = 0; i < children.length; i++) {
+					if (children[i].isLinked()) {
+						message = NLS.bind(Messages.resources_moving, children[i].getFullPath());
+						monitor.subTask(message);
+						IFileStore linkDestination = destStore.getChild(children[i].getName());
+						try {
+							localManager.move(children[i], linkDestination, flags, Policy.monitorFor(null));
+						} catch (CoreException ce) {
+							//log the failure, but keep trying on remaining links
+							failed(ce.getStatus());
+						}
+					}
+				}
+			}
+			monitor.worked(1);
+		} finally {
+			monitor.done();
+		}
+	}
+	/**
+	 * @see IResourceTree#standardDeleteFile(IFile, int, IProgressMonitor)
+	 */
+	public void standardDeleteFile(IFile file, int flags, IProgressMonitor monitor) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			internalDeleteFile(file, flags, monitor);
+		} finally {
+			lock.release();
+		}
+	}
+	/**
+	 * @see IResourceTree#standardDeleteFolder(IFolder, int, IProgressMonitor)
+	 */
+	public void standardDeleteFolder(IFolder folder, int flags, IProgressMonitor monitor) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			internalDeleteFolder(folder, flags, monitor);
+		} catch (OperationCanceledException oce) {
+			safeRefresh(folder);
+			throw oce;
+		} finally {
+			lock.release();
+			monitor.done();
+		}
+	}
+	/**
+	 * @see IResourceTree#standardDeleteProject(IProject, int, IProgressMonitor)
+	 */
+	public void standardDeleteProject(IProject project, int flags, IProgressMonitor monitor) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			String message = NLS.bind(Messages.resources_deleting, project.getFullPath());
+			monitor.beginTask(message, Policy.totalWork);
+			// Do nothing if the project doesn't exist in the workspace tree.
+			if (!project.exists())
+				return;
+			boolean alwaysDeleteContent = (flags & IResource.ALWAYS_DELETE_PROJECT_CONTENT) != 0;
+			boolean neverDeleteContent = (flags & IResource.NEVER_DELETE_PROJECT_CONTENT) != 0;
+			boolean success = true;
+			// Delete project content.  Don't do anything if the user specified explicitly asked
+			// not to delete the project content or if the project is closed and
+			// ALWAYS_DELETE_PROJECT_CONTENT was not specified.
+			if (alwaysDeleteContent || (project.isOpen() && !neverDeleteContent)) {
+				// Force is implied if alwaysDeleteContent is true or if the project is in sync
+				// with the local file system.
+				if (alwaysDeleteContent || isSynchronized(project, IResource.DEPTH_INFINITE)) {
+					flags |= IResource.FORCE;
+				}
+				// If the project is open we have to recursively try and delete all the files doing best-effort.
+				if (project.isOpen()) {
+					success = internalDeleteProject(project, flags, monitor);
+					if (!success) {
+						IFileStore store = localManager.getStore(project);
+						message = NLS.bind(Messages.resources_couldnotDelete, store.toString());
+						IStatus status = new ResourceStatus(IResourceStatus.FAILED_DELETE_LOCAL, project.getFullPath(), message);
+						failed(status);
+					}
+					return;
+				}
+				// If the project is closed we can short circuit this operation and delete all the files on disk.
+				// The .project file is deleted at the end of the operation.
+				try {
+					IFileStore projectStore = localManager.getStore(project);
+					IFileStore members[] = projectStore.childStores(EFS.NONE, null);
+					for (int i = 0; i < members.length; i++) {
+						if (!IProjectDescription.DESCRIPTION_FILE_NAME.equals(members[i].getName()))
+							members[i].delete(EFS.NONE, Policy.subMonitorFor(monitor, Policy.totalWork * 7 / 8 / members.length));
+					}
+					projectStore.delete(EFS.NONE, Policy.subMonitorFor(monitor, Policy.totalWork * 7 / 8 / (members.length > 0 ? members.length : 1)));
+				} catch (OperationCanceledException oce) {
+					safeRefresh(project);
+					throw oce;
+				} catch (CoreException ce) {
+					message = NLS.bind(Messages.localstore_couldnotDelete, project.getFullPath());
+					IStatus status = new ResourceStatus(IStatus.ERROR, IResourceStatus.FAILED_DELETE_LOCAL, project.getFullPath(), message, ce);
+					failed(status);
+					return;
+				}
+			}
+			// Signal that the workspace tree should be updated that the project has been deleted.
+			if (success)
+				deletedProject(project);
+			else {
+				message = NLS.bind(Messages.localstore_couldnotDelete, project.getFullPath());
+				IStatus status = new ResourceStatus(IResourceStatus.FAILED_DELETE_LOCAL, project.getFullPath(), message);
+				failed(status);
+			}
+		} finally {
+			lock.release();
+			monitor.done();
+		}
+	}
+	/**
+	 * @see IResourceTree#standardMoveFile(IFile, IFile, int, IProgressMonitor)
+	 */
+	public void standardMoveFile(IFile source, IFile destination, int flags, IProgressMonitor monitor) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			String message = NLS.bind(Messages.resources_moving, source.getFullPath());
+			monitor.subTask(message);
+			// These pre-conditions should all be ok but just in case...
+			if (!source.exists() || destination.exists() || !destination.getParent().isAccessible())
+				throw new IllegalArgumentException();
+			boolean force = (flags & IResource.FORCE) != 0;
+			boolean keepHistory = (flags & IResource.KEEP_HISTORY) != 0;
+			boolean isDeep = (flags & IResource.SHALLOW) == 0;
+			// If the file is not in sync with the local file system and force is false,
+			// then signal that we have an error.
+			if (!force && !isSynchronized(source, IResource.DEPTH_INFINITE)) {
+				message = NLS.bind(Messages.localstore_resourceIsOutOfSync, source.getFullPath());
+				IStatus status = new ResourceStatus(IResourceStatus.OUT_OF_SYNC_LOCAL, source.getFullPath(), message);
+				failed(status);
+				return;
+			}
+			monitor.worked(Policy.totalWork / 4);
+			// Add the file contents to the local history if requested by the user.
+			if (keepHistory)
+				addToLocalHistory(source);
+			monitor.worked(Policy.totalWork / 4);
+			//for shallow move of linked resources, nothing needs to be moved in the file system
+			if (!isDeep && source.isLinked()) {
+				movedFile(source, destination);
+				return;
+			}
+			// If the file was successfully moved in the file system then the workspace
+			// tree needs to be updated accordingly. Otherwise signal that we have an error.
+			IFileStore destStore = null;
+			boolean failedDeletingSource = false;
+			try {
+				destStore = localManager.getStore(destination);
+				//ensure parent of destination exists
+				destStore.getParent().mkdir(EFS.NONE, Policy.subMonitorFor(monitor, 0));
+				localManager.move(source, destStore, flags, monitor);
+			} catch (CoreException e) {
+				failed(e.getStatus());
+				// did the fail occur after copying to the destination?
+				failedDeletingSource = destStore != null && destStore.fetchInfo().exists();
+				// if so, we should proceed
+				if (!failedDeletingSource)
+					return;
+			}
+			movedFile(source, destination);
+			updateMovedFileTimestamp(destination, internalComputeTimestamp(destination));
+			if (failedDeletingSource) {
+				//recreate source file to ensure we are not out of sync
+				try {
+					source.refreshLocal(IResource.DEPTH_INFINITE, null);
+				} catch (CoreException e) {
+					//ignore secondary failure - we have already logged the main failure
+				}
+			}
+			monitor.worked(Policy.totalWork / 4);
+			return;
+		} finally {
+			lock.release();
+			monitor.done();
+		}
+	}
+	/**
+	 * @see IResourceTree#standardMoveFolder(IFolder, IFolder, int, IProgressMonitor)
+	 */
+	public void standardMoveFolder(IFolder source, IFolder destination, int flags, IProgressMonitor monitor) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			String message = NLS.bind(Messages.resources_moving, source.getFullPath());
+			monitor.beginTask(message, 100);
+			// These pre-conditions should all be ok but just in case...
+			if (!source.exists() || destination.exists() || !destination.getParent().isAccessible())
+				throw new IllegalArgumentException();
+			// Check to see if we are synchronized with the local file system. If we are in sync then we can
+			// short circuit this method and do a file system only move. Otherwise we have to recursively
+			// try and move all resources, doing it in a best-effort manner.
+			boolean force = (flags & IResource.FORCE) != 0;
+			if (!force && !isSynchronized(source, IResource.DEPTH_INFINITE)) {
+				message = NLS.bind(Messages.localstore_resourceIsOutOfSync, source.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message);
+				failed(status);
+				return;
+			}
+			monitor.worked(20);
+			//for linked resources, nothing needs to be moved in the file system
+			boolean isDeep = (flags & IResource.SHALLOW) == 0;
+			if (!isDeep && source.isLinked()) {
+				movedFolderSubtree(source, destination);
+				return;
+			}
+			// Move the resources in the file system. Only the FORCE flag is valid here so don't
+			// have to worry about clearing the KEEP_HISTORY flag.
+			IFileStore destStore = null;
+			boolean failedDeletingSource = false;
+			try {
+				destStore = localManager.getStore(destination);
+				localManager.move(source, destStore, flags, Policy.subMonitorFor(monitor, 60));
+			} catch (CoreException e) {
+				failed(e.getStatus());
+				// did the fail occur after copying to the destination?
+				failedDeletingSource = destStore != null && destStore.fetchInfo().exists();
+				// if so, we should proceed
+				if (!failedDeletingSource)
+					return;
+			}
+			movedFolderSubtree(source, destination);
+			monitor.worked(20);
+			updateTimestamps(destination, isDeep);
+			if (failedDeletingSource) {
+				//the move could have been partially successful, so refresh to ensure we are in sync
+				try {
+					source.refreshLocal(IResource.DEPTH_INFINITE, null);
+					destination.refreshLocal(IResource.DEPTH_INFINITE, null);
+				} catch (CoreException e) {
+					//ignore secondary failures -we have already logged main failure
+				}
+			}
+		} finally {
+			lock.release();
+			monitor.done();
+		}
+	}
+	/**
+	 * @see IResourceTree#standardMoveProject(IProject, IProjectDescription, int, IProgressMonitor)
+	 */
+	public void standardMoveProject(IProject source, IProjectDescription description, int flags, IProgressMonitor monitor) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			String message = NLS.bind(Messages.resources_moving, source.getFullPath());
+			monitor.beginTask(message, Policy.totalWork);
+			// Double-check this pre-condition.
+			if (!source.isAccessible())
+				throw new IllegalArgumentException();
+			// If there is nothing to do on disk then signal to make the workspace tree
+			// changes.
+			if (!isContentChange(source, description)) {
+				movedProjectSubtree(source, description);
+				return;
+			}
+			// Check to see if we are synchronized with the local file system.
+			boolean force = (flags & IResource.FORCE) != 0;
+			if (!force && !isSynchronized(source, IResource.DEPTH_INFINITE)) {
+				// FIXME: make this a best effort move?
+				message = NLS.bind(Messages.localstore_resourceIsOutOfSync, source.getFullPath());
+				IStatus status = new ResourceStatus(IResourceStatus.OUT_OF_SYNC_LOCAL, source.getFullPath(), message);
+				failed(status);
+				return;
+			}
+			IFileStore destinationStore;
+			try {
+				destinationStore = computeDestinationStore(description);
+				//destination can be non-empty on replace
+				if ((flags & IResource.REPLACE) == 0)
+					if (!ensureDestinationEmpty(source, destinationStore, monitor))
+						return;
+			} catch (CoreException e) {
+				//must fail if the destination location cannot be accessd (undefined file system)
+				message = NLS.bind(Messages.localstore_couldNotMove, source.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message, e);
+				failed(status);
+				return;
+			}
+			// Move the project content in the local file system.
+			try {
+				moveProjectContent(source, destinationStore, flags, Policy.subMonitorFor(monitor, Policy.totalWork * 3 / 4));
+			} catch (CoreException e) {
+				message = NLS.bind(Messages.localstore_couldNotMove, source.getFullPath());
+				IStatus status = new ResourceStatus(IStatus.ERROR, source.getFullPath(), message, e);
+				failed(status);
+				//refresh the project because it might have been partially moved
+				try {
+					source.refreshLocal(IResource.DEPTH_INFINITE, null);
+				} catch (CoreException e2) {
+					//ignore secondary failures
+				}
+			}
+			// If we got this far the project content has been moved on disk (if necessary)
+			// and we need to update the workspace tree.
+			movedProjectSubtree(source, description);
+			monitor.worked(Policy.totalWork * 1 / 8);
+			boolean isDeep = (flags & IResource.SHALLOW) == 0;
+			updateTimestamps(source.getWorkspace().getRoot().getProject(description.getName()), isDeep);
+			monitor.worked(Policy.totalWork * 1 / 8);
+		} finally {
+			lock.release();
+			monitor.done();
+		}
+	}
+	/**
+	 * @see IResourceTree#updateMovedFileTimestamp(IFile, long)
+	 */
+	public void updateMovedFileTimestamp(IFile file, long timestamp) {
+		Assert.isLegal(isValid);
+		try {
+			lock.acquire();
+			// Do nothing if the file doesn't exist in the workspace tree.
+			if (!file.exists())
+				return;
+			// Update the timestamp in the tree.
+			ResourceInfo info = ((Resource) file).getResourceInfo(false, true);
+			// The info should never be null since we just checked that the resource exists in the tree.
+			localManager.updateLocalSync(info, timestamp);
+			//remove the linked bit since this resource has been moved in the file system
+			info.clear(ICoreConstants.M_LINK);
+		} finally {
+			lock.release();
+		}
+	}
+	/**
+	 * Helper method to update all the timestamps in the tree to match
+	 * those in the file system. Used after a #move.
+	 */
+	private void updateTimestamps(IResource root, final boolean isDeep) {
+		IResourceVisitor visitor = new IResourceVisitor() {
+			public boolean visit(IResource resource) {
+				if (resource.isLinked()) {
+					if (isDeep) {
+						//clear the linked resource bit, if any
+						ResourceInfo info = ((Resource) resource).getResourceInfo(false, true);
+						info.clear(ICoreConstants.M_LINK);
+					}
+					return true;
+				}
+				//only needed if underlying file system does not preserve timestamps
+				//				if (resource.getType() == IResource.FILE) {
+				//					IFile file = (IFile) resource;
+				//					updateMovedFileTimestamp(file, computeTimestamp(file));
+				//				}
+				return true;
+			}
+		};
+		try {
+			root.accept(visitor, IResource.DEPTH_INFINITE, IContainer.INCLUDE_TEAM_PRIVATE_MEMBERS | IContainer.INCLUDE_HIDDEN);
+		} catch (CoreException e) {
+			// No exception should be thrown.
+		}
+	}
+}