| /******************************************************************************* |
| * Copyright (c) 2005, 2006 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.ltk.internal.core.refactoring.history; |
| |
| import java.net.URI; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.NullProgressMonitor; |
| |
| import org.eclipse.core.filesystem.EFS; |
| import org.eclipse.core.filesystem.IFileStore; |
| |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| |
| import org.eclipse.ltk.core.refactoring.RefactoringDescriptor; |
| import org.eclipse.ltk.core.refactoring.RefactoringDescriptorProxy; |
| import org.eclipse.ltk.core.refactoring.history.IRefactoringHistoryListener; |
| import org.eclipse.ltk.core.refactoring.history.RefactoringHistoryEvent; |
| |
| import org.eclipse.ltk.internal.core.refactoring.RefactoringCorePlugin; |
| |
| /** |
| * Refactoring history listener which continuously persists the global |
| * refactoring history in the different history locations. |
| * |
| * @since 3.2 |
| */ |
| public final class RefactoringHistorySerializer implements IRefactoringHistoryListener { |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public void historyNotification(final RefactoringHistoryEvent event) { |
| Assert.isNotNull(event); |
| switch (event.getEventType()) { |
| case RefactoringHistoryEvent.ADDED: |
| case RefactoringHistoryEvent.DELETED: |
| case RefactoringHistoryEvent.PUSHED: |
| case RefactoringHistoryEvent.POPPED: { |
| final RefactoringDescriptorProxy proxy= event.getDescriptor(); |
| final long stamp= proxy.getTimeStamp(); |
| if (stamp >= 0) { |
| final String name= proxy.getProject(); |
| final IFileStore store= EFS.getLocalFileSystem().getStore(RefactoringCorePlugin.getDefault().getStateLocation()).getChild(RefactoringHistoryService.NAME_HISTORY_FOLDER); |
| if (name != null && !"".equals(name)) { //$NON-NLS-1$ |
| final IProject project= ResourcesPlugin.getWorkspace().getRoot().getProject(name); |
| if (project.isAccessible()) { |
| if (RefactoringHistoryService.hasSharedRefactoringHistory(project)) { |
| final URI uri= project.getLocationURI(); |
| if (uri != null) { |
| try { |
| processHistoryNotification(EFS.getStore(uri).getChild(RefactoringHistoryService.NAME_HISTORY_FOLDER), event, name); |
| } catch (CoreException exception) { |
| RefactoringCorePlugin.log(exception); |
| } finally { |
| try { |
| project.refreshLocal(IResource.DEPTH_INFINITE, null); |
| } catch (CoreException exception) { |
| RefactoringCorePlugin.log(exception); |
| } |
| } |
| } |
| } else { |
| try { |
| processHistoryNotification(store.getChild(name), event, name); |
| } catch (CoreException exception) { |
| RefactoringCorePlugin.log(exception); |
| } |
| } |
| } |
| } else { |
| try { |
| processHistoryNotification(store.getChild(RefactoringHistoryService.NAME_WORKSPACE_PROJECT), event, name); |
| } catch (CoreException exception) { |
| RefactoringCorePlugin.log(exception); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * Processes the history event. |
| * |
| * @param store |
| * the file store |
| * @param event |
| * the history event |
| * @param name |
| * the project name, or <code>null</code> |
| * @throws CoreException |
| * if an error occurs |
| */ |
| private void processHistoryNotification(final IFileStore store, final RefactoringHistoryEvent event, final String name) throws CoreException { |
| final RefactoringDescriptorProxy proxy= event.getDescriptor(); |
| final int type= event.getEventType(); |
| final RefactoringHistoryManager manager= new RefactoringHistoryManager(store, name); |
| final NullProgressMonitor monitor= new NullProgressMonitor(); |
| if (type == RefactoringHistoryEvent.PUSHED || type == RefactoringHistoryEvent.ADDED) { |
| final RefactoringDescriptor descriptor= proxy.requestDescriptor(monitor); |
| if (descriptor != null) |
| manager.addRefactoringDescriptor(descriptor, type == RefactoringHistoryEvent.ADDED, monitor); |
| } else if (type == RefactoringHistoryEvent.POPPED || type == RefactoringHistoryEvent.DELETED) |
| manager.removeRefactoringDescriptor(proxy.getTimeStamp(), monitor); |
| } |
| } |