| /******************************************************************************* |
| * Copyright (c) 2011 Red Hat, Inc. |
| * All rights reserved. |
| * This program is 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: |
| * Red Hat, Inc. - initial API and implementation |
| * |
| * @author Bob Brodt |
| ******************************************************************************/ |
| |
| package org.eclipse.bpmn2.modeler.ui; |
| |
| import java.util.ArrayList; |
| import java.util.Iterator; |
| import java.util.List; |
| |
| import org.eclipse.core.resources.IFile; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.IResourceChangeEvent; |
| import org.eclipse.core.resources.IResourceChangeListener; |
| import org.eclipse.core.resources.IResourceDelta; |
| import org.eclipse.core.resources.IResourceDeltaVisitor; |
| import org.eclipse.core.resources.IWorkspaceRoot; |
| import org.eclipse.core.resources.IWorkspaceRunnable; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.IPath; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| |
| /** |
| * @author Bob Brodt |
| * |
| */ |
| public class BPMN2ResourceChangeListener implements IResourceChangeListener { |
| |
| class ResourceDeltaVisitor implements IResourceDeltaVisitor { |
| |
| public boolean visit(final IResourceDelta delta) throws CoreException { |
| IResource target = delta.getResource(); |
| // switch (delta.getKind()) { |
| // case IResourceDelta.ADDED: |
| // System.out.println(target.getFullPath()+" ADDED"); |
| // break; |
| // case IResourceDelta.CHANGED: |
| // System.out.println(target.getFullPath()+" CHANGED"); |
| // break; |
| // case IResourceDelta.REMOVED: |
| // System.out.println(target.getFullPath()+" REMOVED"); |
| // break; |
| // case IResourceDelta.ADDED_PHANTOM: |
| // System.out.println(target.getFullPath()+" ADDED_PHANTOM"); |
| // break; |
| // } |
| if (target.getType() == IResource.FILE) { |
| handleFile(delta); |
| } |
| return true; |
| } |
| |
| private void handleFile(final IResourceDelta delta) |
| throws CoreException { |
| IWorkspaceRunnable runnable = new IWorkspaceRunnable() { |
| public void run(IProgressMonitor monitor) |
| throws CoreException { |
| IFile target = (IFile) delta.getResource(); |
| int flags = delta.getFlags(); |
| |
| switch (delta.getKind()) { |
| case IResourceDelta.ADDED: |
| if ((flags & IResourceDelta.MOVED_FROM) != 0) { |
| if (target.exists()) |
| fileMoved(delta.getMovedFromPath(), target.getFullPath()); |
| } |
| break; |
| case IResourceDelta.REMOVED: |
| if ((flags & IResourceDelta.MOVED_TO) != 0) { |
| if (target.exists()) |
| fileMoved(target.getFullPath(), delta.getMovedToPath()); |
| } else { |
| fileDeleted(target.getFullPath(), monitor); |
| } |
| break; |
| } |
| } |
| }; |
| ResourcesPlugin.getWorkspace().run(runnable, null); |
| } |
| } |
| |
| protected IResourceDeltaVisitor visitor; |
| protected List<IFileChangeListener> listeners; |
| |
| public BPMN2ResourceChangeListener() { |
| listeners = new ArrayList<IFileChangeListener>(); |
| } |
| |
| /** |
| * Objects like the BPELEditor can add listeners so they can be |
| * notified and react when BPEL files change. |
| */ |
| public void addListener(IFileChangeListener listener) { |
| listeners.add(listener); |
| } |
| |
| /** |
| * Removed the listener. |
| */ |
| public void removeListener(IFileChangeListener listener) { |
| listeners.remove(listener); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.core.resources.IResourceChangeListener#resourceChanged(org.eclipse.core.resources.IResourceChangeEvent) |
| */ |
| @Override |
| public void resourceChanged(IResourceChangeEvent event) { |
| try { |
| event.getDelta().accept(getResourceDeltaVisitor()); |
| } catch (CoreException e) { |
| Activator.logError(e); |
| } |
| } |
| |
| protected IResourceDeltaVisitor getResourceDeltaVisitor() { |
| if (visitor == null) { |
| visitor = new ResourceDeltaVisitor(); |
| } |
| return visitor; |
| } |
| |
| protected void fileMoved(IPath oldFilePath, IPath newFilePath) throws CoreException { |
| // notify listeners |
| // make a copy of listener list to avoid concurrent list modification |
| List<IFileChangeListener> l = new ArrayList<IFileChangeListener>(); |
| l.addAll(listeners); |
| for (IFileChangeListener listener : l) { |
| listener.moved(oldFilePath, newFilePath); |
| } |
| } |
| |
| protected void fileDeleted(IPath filePath, IProgressMonitor monitor) throws CoreException { |
| // notify listeners |
| // make a copy of listener list to avoid concurrent list modification |
| List<IFileChangeListener> l = new ArrayList<IFileChangeListener>(); |
| l.addAll(listeners); |
| for (IFileChangeListener listener : l) { |
| listener.deleted(filePath); |
| } |
| } |
| } |