| /******************************************************************************* |
| * Copyright (c) 2003, 2004 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.jst.j2ee.navigator.internal; |
| |
| import java.util.HashMap; |
| import java.util.Map; |
| |
| import org.eclipse.core.resources.IProject; |
| 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.ResourcesPlugin; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.jst.j2ee.internal.J2EEEditModel; |
| import org.eclipse.jst.j2ee.internal.project.J2EENature; |
| import org.eclipse.swt.SWTError; |
| import org.eclipse.swt.SWTException; |
| import org.eclipse.wst.common.internal.emfworkbench.integration.EditModelEvent; |
| import org.eclipse.wst.common.internal.emfworkbench.integration.EditModelListener; |
| import org.eclipse.wst.common.navigator.views.INavigatorExtensionSite; |
| |
| import com.ibm.wtp.common.logger.proxy.Logger; |
| |
| |
| /** |
| * @author Administrator |
| * |
| * |
| */ |
| public class J2EERootObjectManager implements EditModelListener, IResourceChangeListener, IResourceDeltaVisitor { |
| |
| |
| private Map projectEditModels; |
| |
| private Map projectRootObjects; |
| |
| private INavigatorExtensionSite extensionSite; |
| |
| private J2EENavigatorContentExtension containingExtension; |
| |
| /** |
| * @return Returns the containingExtension. |
| */ |
| protected J2EENavigatorContentExtension getContainingExtension() { |
| return this.containingExtension; |
| } |
| |
| public J2EERootObjectManager(J2EENavigatorContentExtension containingExtension, INavigatorExtensionSite extensionSite) { |
| this.containingExtension = containingExtension; |
| this.extensionSite = extensionSite; |
| ResourcesPlugin.getWorkspace().addResourceChangeListener(this); |
| } |
| |
| public void dispose() { |
| if (projectEditModels == null) |
| return; |
| ResourcesPlugin.getWorkspace().removeResourceChangeListener(this); |
| J2EEEditModel editModel = null; |
| Object[] keys = getProjectEditModels().keySet().toArray(); |
| for (int i = 0; i < keys.length; i++) { |
| editModel = (J2EEEditModel) getProjectEditModels().remove(keys[i]); |
| if (editModel != null) { |
| editModel.removeListener(this); |
| editModel.releaseAccess(this); |
| } |
| } |
| } |
| |
| public Object getRootObject(IProject project) { |
| if (project == null || !project.isAccessible()) |
| return null; |
| |
| Object rootObject = null; |
| Map localRoots = getProjectRootObjects(); |
| synchronized (localRoots) { |
| rootObject = localRoots.get(project); |
| |
| if (rootObject == null || ((EObject) rootObject).eResource() == null) { |
| J2EEEditModel editModel = getEditModelForProject(project); |
| if (editModel != null) { |
| rootObject = editModel.getPrimaryRootObject(); |
| localRoots.put(project, rootObject); |
| } |
| } |
| } |
| return rootObject; |
| } |
| |
| public void editModelChanged(EditModelEvent anEvent) { |
| IProject affectedProject = anEvent.getEditModel().getProject(); |
| switch (anEvent.getEventCode()) { |
| case EditModelEvent.UNLOADED_RESOURCE : |
| case EditModelEvent.REMOVED_RESOURCE : { |
| Object oldRootObject = getProjectRootObjects().remove(affectedProject); |
| if (oldRootObject != null) { |
| getExtensionSite().notifyElementReplaced(getContainingExtension(), affectedProject); |
| } |
| } |
| break; |
| case EditModelEvent.SAVE : { |
| Object oldRootObject = getProjectRootObjects().get(affectedProject); |
| if (oldRootObject == null) { |
| //newChildren = |
| // containingExtension.getContentProvider().getChildren(affectedProject); |
| getExtensionSite().notifyElementReplaced(getContainingExtension(), affectedProject); |
| } |
| } |
| break; |
| case EditModelEvent.PRE_DISPOSE : |
| disposeCache(affectedProject); |
| break; |
| default : |
| break; |
| } |
| } |
| |
| protected void disposeCache(IProject affectedProject) { |
| synchronized (getProjectEditModels()) { |
| getProjectRootObjects().remove(affectedProject); |
| //System.out.println("REMOVING edit model: " + affectedProject.getName()); |
| J2EEEditModel editModel = (J2EEEditModel) getProjectEditModels().remove(affectedProject); |
| //System.out.println("REMOVED edit model " + affectedProject.getName()); |
| if (editModel != null) { |
| editModel.removeListener(this); |
| editModel.releaseAccess(this); |
| //System.out.println("RELEASED edit model " + affectedProject.getName()); |
| } |
| } |
| } |
| |
| protected J2EEEditModel getEditModelForProject(IProject project) { |
| if (project == null) |
| return null; |
| J2EEEditModel editModel = null; |
| synchronized (getProjectEditModels()) { |
| editModel = (J2EEEditModel) getProjectEditModels().get(project); |
| if (editModel == null && project.isAccessible()) { |
| //System.out.println("getEditModelForProject " + project.getName()); |
| J2EENature nature = J2EENature.getRegisteredRuntime(project); |
| if (nature != null) { |
| editModel = nature.getJ2EEEditModelForRead(this); |
| if (editModel != null) { |
| editModel.addListener(this); |
| addMapping(project, editModel); |
| } |
| } |
| } |
| } |
| return editModel; |
| } |
| |
| protected void addMapping(IProject project, J2EEEditModel editModel) { |
| getProjectEditModels().put(project, editModel); |
| } |
| |
| /** |
| * @return Returns the projectEditModels. |
| */ |
| protected Map getProjectEditModels() { |
| if (projectEditModels == null) |
| projectEditModels = new HashMap(); |
| return projectEditModels; |
| } |
| |
| /** |
| * @return Returns the extensionSite. |
| */ |
| protected INavigatorExtensionSite getExtensionSite() { |
| return extensionSite; |
| } |
| |
| /** |
| * @return Returns the projectRootObjects. |
| */ |
| protected Map getProjectRootObjects() { |
| if (projectRootObjects == null) |
| projectRootObjects = new HashMap(); |
| return projectRootObjects; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.core.resources.IResourceChangeListener#resourceChanged(org.eclipse.core.resources.IResourceChangeEvent) |
| */ |
| public void resourceChanged(IResourceChangeEvent event) { |
| final IResourceDelta delta = event.getDelta(); |
| |
| if (delta != null) { |
| try { |
| delta.accept(J2EERootObjectManager.this); |
| } catch (CoreException e) { |
| Logger.getLogger().logError(e); |
| } catch (SWTException swte) { |
| Logger.getLogger().logError(swte); |
| } catch (SWTError swte) { |
| Logger.getLogger().logError(swte); |
| } |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.core.resources.IResourceDeltaVisitor#visit(org.eclipse.core.resources.IResourceDelta) |
| */ |
| public boolean visit(IResourceDelta delta) throws CoreException { |
| IResource resource = delta.getResource(); |
| if (resource != null) { |
| switch (resource.getType()) { |
| case IResource.ROOT : |
| return true; |
| case IResource.PROJECT : |
| if (delta.getKind() == IResourceDelta.REMOVED) |
| disposeCache((IProject) resource); |
| return false; |
| } |
| } |
| return false; |
| } |
| |
| } |