| /******************************************************************************* |
| * Copyright (c) 2000, 2003 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.team.examples.filesystem.subscriber; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.resources.IProject; |
| import org.eclipse.core.resources.IResource; |
| import org.eclipse.core.resources.ResourcesPlugin; |
| import org.eclipse.core.runtime.QualifiedName; |
| import org.eclipse.team.core.RepositoryProvider; |
| import org.eclipse.team.core.TeamException; |
| import org.eclipse.team.core.variants.IResourceVariant; |
| import org.eclipse.team.core.variants.ThreeWayRemoteTree; |
| import org.eclipse.team.core.variants.ThreeWaySubscriber; |
| import org.eclipse.team.core.variants.ThreeWaySynchronizer; |
| import org.eclipse.team.examples.filesystem.FileSystemPlugin; |
| import org.eclipse.team.examples.filesystem.FileSystemProvider; |
| |
| /** |
| * This is an example file system subscriber that overrides |
| * ThreeWaySubscriber. It uses a repository |
| * provider (<code>FileSystemProvider</code>) to determine and |
| * manage the roots and to create resource variants. It also makes |
| * use of a file system specific remote tree (<code>FileSystemRemoteTree</code>) |
| * for provided the remote tree access and refresh. |
| * |
| * @see ThreeWaySubscriber |
| * @see ThreeWaySynchronizer |
| * @see FileSystemProvider |
| * @see FileSystemRemoteTree |
| */ |
| public class FileSystemSubscriber extends ThreeWaySubscriber { |
| |
| private static FileSystemSubscriber instance; |
| |
| /** |
| * Return the file system subscriber singleton. |
| * @return the file system subscriber singleton. |
| */ |
| public static synchronized FileSystemSubscriber getInstance() { |
| if (instance == null) { |
| instance = new FileSystemSubscriber(); |
| } |
| return instance; |
| } |
| |
| /** |
| * Create the file system subscriber. |
| */ |
| private FileSystemSubscriber() { |
| super(new ThreeWaySynchronizer(new QualifiedName(FileSystemPlugin.ID, "workpsace-sync"))); //$NON-NLS-1$ |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.team.core.variants.ThreeWaySubscriber#getResourceVariant(org.eclipse.core.resources.IResource, byte[]) |
| */ |
| public IResourceVariant getResourceVariant(IResource resource, byte[] bytes) throws TeamException { |
| RepositoryProvider provider = RepositoryProvider.getProvider(resource.getProject(), FileSystemPlugin.PROVIDER_ID); |
| if (provider != null) { |
| return ((FileSystemProvider)provider).getResourceVariant(resource, bytes); |
| } |
| return null; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.team.core.variants.ThreeWaySubscriber#createRemoteTree() |
| */ |
| protected ThreeWayRemoteTree createRemoteTree() { |
| return new FileSystemRemoteTree(this); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.team.core.subscribers.Subscriber#getName() |
| */ |
| public String getName() { |
| return "File System Example"; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.team.core.subscribers.Subscriber#roots() |
| */ |
| public IResource[] roots() { |
| List result = new ArrayList(); |
| IProject[] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects(); |
| for (int i = 0; i < projects.length; i++) { |
| IProject project = projects[i]; |
| if(project.isAccessible()) { |
| RepositoryProvider provider = RepositoryProvider.getProvider(project, FileSystemPlugin.PROVIDER_ID); |
| if(provider != null) { |
| result.add(project); |
| } |
| } |
| } |
| return (IProject[]) result.toArray(new IProject[result.size()]); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.team.core.variants.ThreeWaySubscriber#handleRootChanged(org.eclipse.core.resources.IResource, boolean) |
| */ |
| public void handleRootChanged(IResource resource, boolean added) { |
| // Override to allow FileSystemProvider to signal the addition and removal of roots |
| super.handleRootChanged(resource, added); |
| } |
| |
| } |