| /******************************************************************************* |
| * Copyright (c) 2000, 2009 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * 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.CoreException; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.core.runtime.QualifiedName; |
| import org.eclipse.team.core.RepositoryProvider; |
| import org.eclipse.team.core.TeamException; |
| import org.eclipse.team.core.synchronize.SyncInfo; |
| 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"))); //$NON-NLS-1$ |
| } |
| |
| @Override |
| public IResourceVariant getResourceVariant(IResource resource, byte[] bytes) { |
| RepositoryProvider provider = RepositoryProvider.getProvider(resource.getProject(), FileSystemPlugin.PROVIDER_ID); |
| if (provider != null) { |
| return ((FileSystemProvider)provider).getResourceVariant(resource, bytes); |
| } |
| return null; |
| } |
| |
| @Override |
| protected ThreeWayRemoteTree createRemoteTree() { |
| return new FileSystemRemoteTree(this); |
| } |
| |
| @Override |
| public String getName() { |
| return "File System Example"; //$NON-NLS-1$ |
| } |
| |
| @Override |
| public IResource[] roots() { |
| List<IProject> result = new ArrayList<>(); |
| IProject[] projects = ResourcesPlugin.getWorkspace().getRoot().getProjects(); |
| for (IProject project : projects) { |
| if(project.isAccessible()) { |
| RepositoryProvider provider = RepositoryProvider.getProvider(project, FileSystemPlugin.PROVIDER_ID); |
| if(provider != null) { |
| result.add(project); |
| } |
| } |
| } |
| return result.toArray(new IProject[result.size()]); |
| } |
| |
| @Override |
| public void handleRootChanged(IResource resource, boolean added) { |
| // Override to allow FileSystemProvider to signal the addition and removal of roots |
| super.handleRootChanged(resource, added); |
| } |
| |
| @Override |
| protected SyncInfo getSyncInfo(IResource local, IResourceVariant base, IResourceVariant remote) throws TeamException { |
| // Override to use a custom sync info |
| FileSystemSyncInfo info = new FileSystemSyncInfo(local, base, remote, this.getResourceComparator()); |
| info.init(); |
| return info; |
| } |
| |
| /** |
| * Make the resource in-sync. |
| * @param resource the resource |
| * @throws TeamException |
| */ |
| public void makeInSync(IResource resource) throws TeamException { |
| ThreeWaySynchronizer synchronizer = getSynchronizer(); |
| byte[] remoteBytes = synchronizer.getRemoteBytes(resource); |
| if (remoteBytes == null) { |
| if (!resource.exists()) |
| synchronizer.flush(resource, IResource.DEPTH_ZERO); |
| } else { |
| synchronizer.setBaseBytes(resource, remoteBytes); |
| } |
| } |
| |
| /** |
| * Make the change an outgoing change |
| * @param resource |
| * @throws TeamException |
| */ |
| public void markAsMerged(IResource resource, IProgressMonitor monitor) throws TeamException { |
| makeInSync(resource); |
| try { |
| resource.touch(monitor); |
| } catch (CoreException e) { |
| throw TeamException.asTeamException(e); |
| } |
| } |
| |
| } |