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/*******************************************************************************
* Copyright (c) 2015 Obeo.
* 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:
* Obeo - initial API and implementation
*******************************************************************************/
package org.eclipse.emf.compare.ide.ui.internal.logical.resolver;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.Set;
import java.util.concurrent.Callable;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IStorage;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.OperationCanceledException;
import org.eclipse.emf.common.util.URI;
import org.eclipse.emf.compare.ide.utils.StorageTraversal;
/**
* This will be called by Team in order to determine whether a given file can be compared alone, or if it
* needs to be compared along with others (and, thus, compared from the synchronize view). Note that only
* local data is available here.
*
* @author <a href="mailto:laurent.delaigue@obeo.fr">Laurent Delaigue</a>
*/
public class LocalModelResolution extends AbstractResolution {
/** The local resolver. */
private final IResourceDependencyLocalResolver resolver;
/**
* Constructor.
*
* @param dependencyProvider
* The dependency provider
* @param scheduler
* multi-thread support to use
* @param eventBus
* The event bus
* @param monitor
* Progress monitor to use
*/
public LocalModelResolution(IResolutionContext context, IProgressMonitor monitor) {
super(context, monitor);
this.resolver = context.getLocalResolver();
}
/**
* Executes this treatment.
*
* @param start
* Resource for which we want the traversal
* @return The {@link StorageTraversal} for the given resource, never null but possibly empty.
* @throws InterruptedException
* If the computation is interrupted.
*/
public StorageTraversal run(final IResource start) throws InterruptedException {
if (logger.isDebugEnabled()) {
logger.debug("run() - START"); //$NON-NLS-1$
}
if (!(start instanceof IFile)) {
if (logger.isDebugEnabled()) {
logger.debug("run() - FINISH"); //$NON-NLS-1$
}
return new StorageTraversal(new LinkedHashSet<IStorage>());
}
return call(new Callable<StorageTraversal>() {
public StorageTraversal call() throws InterruptedException {
resolver.updateDependencies(monitor, diagnostic, (IFile)start);
if (monitor.isCanceled()) {
throw new OperationCanceledException();
}
final Set<IStorage> traversalSet = resolveTraversal((IFile)start, Collections
.<URI> emptySet());
StorageTraversal traversal = new StorageTraversal(traversalSet, diagnostic.getDiagnostic());
if (logger.isDebugEnabled()) {
logger.debug("run() - FINISH"); //$NON-NLS-1$
}
return traversal;
}
});
}
}
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