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/*******************************************************************************
* Copyright (c) 2000, 2010 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.team.examples.localhistory;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.eclipse.core.resources.IContainer;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IFileState;
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.team.core.TeamException;
import org.eclipse.team.core.subscribers.Subscriber;
import org.eclipse.team.core.synchronize.SyncInfo;
import org.eclipse.team.core.variants.IResourceVariant;
import org.eclipse.team.core.variants.IResourceVariantComparator;
public class LocalHistorySubscriber extends Subscriber {
private LocalHistoryVariantComparator comparator;
public LocalHistorySubscriber() {
this.comparator = new LocalHistoryVariantComparator();
}
public String getName() {
return "Local History Subscriber"; //$NON-NLS-1$
}
/**
* @param resource the resource being tested
*/
public boolean isSupervised(IResource resource) {
// all resources in the workspace can potentially have resource history
return true;
}
public IResource[] members(IResource resource) throws TeamException {
try {
if(resource.getType() == IResource.FILE)
return new IResource[0];
IContainer container = (IContainer)resource;
List existingChildren = new ArrayList(Arrays.asList(container.members()));
existingChildren.addAll(Arrays.asList(container.findDeletedMembersWithHistory(IResource.DEPTH_INFINITE, null)));
return (IResource[]) existingChildren.toArray(new IResource[existingChildren.size()]);
} catch (CoreException e) {
throw TeamException.asTeamException(e);
}
}
public IResource[] roots() {
return ResourcesPlugin.getWorkspace().getRoot().getProjects();
}
public SyncInfo getSyncInfo(IResource resource) throws TeamException {
try {
IResourceVariant variant = null;
if(resource.getType() == IResource.FILE) {
IFile file = (IFile)resource;
IFileState[] states = file.getHistory(null);
if(states.length > 0) {
// last state only
variant = new LocalHistoryVariant(states[0]);
}
}
SyncInfo info = new LocalHistorySyncInfo(resource, variant, comparator);
info.init();
return info;
} catch (CoreException e) {
throw TeamException.asTeamException(e);
}
}
public IResourceVariantComparator getResourceComparator() {
return comparator;
}
/**
* @param resources
* the resources to refresh
* @param depth
* the depth
* @param monitor
* progress monitor, or <code>null</code> if progress reporting
* and cancellation are not desired
*/
public void refresh(IResource[] resources, int depth, IProgressMonitor monitor) {
// do nothing
}
}
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