| /******************************************************************************* |
| * 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.internal.ccvs.core.syncinfo; |
| |
| import java.util.*; |
| |
| import org.eclipse.core.resources.*; |
| import org.eclipse.core.runtime.IProgressMonitor; |
| import org.eclipse.team.core.TeamException; |
| import org.eclipse.team.internal.ccvs.core.CVSException; |
| import org.eclipse.team.internal.ccvs.core.CVSProviderPlugin; |
| import org.eclipse.team.internal.ccvs.core.Policy; |
| import org.eclipse.team.internal.ccvs.core.resources.EclipseSynchronizer; |
| import org.eclipse.team.internal.core.BackgroundEventHandler; |
| |
| /** |
| * This class handles resources changes that are reported in deltas |
| * in a deferred manner (i.e. in a background job) |
| */ |
| public class DeferredResourceChangeHandler extends BackgroundEventHandler { |
| |
| public DeferredResourceChangeHandler() { |
| super(Policy.bind("DeferredResourceChangeHandler.0"), Policy.bind("DeferredResourceChangeHandler.1")); //$NON-NLS-1$ //$NON-NLS-2$ |
| } |
| |
| private static final int IGNORE_FILE_CHANGED = 1; |
| private static final int RECREATED_CVS_RESOURCE = 2; |
| |
| private Set changedIgnoreFiles = new HashSet(); |
| private Set recreatedResources = new HashSet(); |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.team.core.subscribers.BackgroundEventHandler#processEvent(org.eclipse.team.core.subscribers.BackgroundEventHandler.Event, org.eclipse.core.runtime.IProgressMonitor) |
| */ |
| protected void processEvent(Event event, IProgressMonitor monitor) throws TeamException { |
| int type = event.getType(); |
| switch (type) { |
| case IGNORE_FILE_CHANGED : |
| changedIgnoreFiles.add(event.getResource()); |
| case RECREATED_CVS_RESOURCE : |
| recreatedResources.add(event.getResource()); |
| } |
| } |
| |
| private IContainer[] getParents(Set files) { |
| Set parents = new HashSet(); |
| for (Iterator iter = files.iterator(); iter.hasNext();) { |
| IFile file = (IFile) iter.next(); |
| parents.add(file.getParent()); |
| } |
| return (IContainer[]) parents.toArray(new IContainer[parents.size()]); |
| } |
| |
| public void ignoreFileChanged(IFile file) { |
| queueEvent(new Event(file, IGNORE_FILE_CHANGED, IResource.DEPTH_ZERO), false); |
| } |
| |
| /** |
| * The resource has been added and has sync info that has not been written to disk. |
| * Queue an event to ensure that the CVS directory files |
| * are written to disk. |
| * @param resource the recently add resource |
| */ |
| public void recreated(IResource resource) { |
| queueEvent(new Event(resource, RECREATED_CVS_RESOURCE, IResource.DEPTH_ZERO), false); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.team.core.subscribers.BackgroundEventHandler#dispatchEvents() |
| */ |
| protected boolean doDispatchEvents(IProgressMonitor monitor) throws TeamException { |
| // Handle ignore file changes |
| boolean workDone = !changedIgnoreFiles.isEmpty() || !recreatedResources.isEmpty(); |
| EclipseSynchronizer.getInstance().ignoreFilesChanged(getParents(changedIgnoreFiles)); |
| changedIgnoreFiles.clear(); |
| // Handle recreations by project to reduce locking granularity |
| Map recreations = getResourcesByProject((IResource[]) recreatedResources.toArray(new IResource[recreatedResources.size()])); |
| recreatedResources.clear(); |
| for (Iterator iter = recreations.values().iterator(); iter.hasNext();) { |
| List resources = (List) iter.next(); |
| try { |
| EclipseSynchronizer.getInstance().resourcesRecreated((IResource[]) resources.toArray(new IResource[resources.size()]), monitor); |
| } catch (CVSException e) { |
| // Log and continue |
| CVSProviderPlugin.log(e); |
| } |
| } |
| return workDone; |
| } |
| |
| private Map getResourcesByProject(IResource[] resources) { |
| Map result = new HashMap(); |
| for (int i = 0; i < resources.length; i++) { |
| IResource resource = resources[i]; |
| IProject project = resource.getProject(); |
| List projectResources = (List)result.get(project); |
| if (projectResources == null) { |
| projectResources = new ArrayList(); |
| result.put(project, projectResources); |
| } |
| projectResources.add(resource); |
| } |
| return result; |
| } |
| } |