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/*******************************************************************************
* Copyright (c) 2011 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.logical.synchronization;
import java.io.IOException;
import java.util.Collections;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.compare.logical.model.EMFModelProvider;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.resource.ResourceSet;
import org.eclipse.jface.resource.ImageDescriptor;
import org.eclipse.team.ui.mapping.SaveableComparison;
/**
* Instances of this class will be used to buffer the changes made to the EMF logical models during a
* comparison and determine when a save is needed.
*
* @author <a href="mailto:laurent.goubet@obeo.fr">laurent Goubet</a>
*/
public class EMFSaveableBuffer extends SaveableComparison {
/** Cache key for the logical model buffer within the synchronization cache. */
public static final String SYNCHRONIZATION_CACHE_KEY = EMFModelProvider.PROVIDER_ID + ".sync.cache"; //$NON-NLS-1$
/** Human-readable name of this saveable. */
private final String name;
/** Resource set which contains the actual models. */
private final ResourceSet resourceSet;
/**
* Creates our buffer given its human-readable name and its underlying resource set.
*
* @param name
* Human-readable name of this saveable.
* @param resourceSet
* Resource set which contains the actual models.
*/
public EMFSaveableBuffer(String name, ResourceSet resourceSet) {
this.name = name;
this.resourceSet = resourceSet;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.team.ui.mapping.SaveableComparison#performSave(org.eclipse.core.runtime.IProgressMonitor)
*/
@Override
protected void performSave(IProgressMonitor monitor) throws CoreException {
for (Resource resource : resourceSet.getResources()) {
try {
resource.save(Collections.emptyMap());
} catch (IOException e) {
// FIXME provide feedback
}
}
}
/**
* {@inheritDoc}
*
* @see org.eclipse.team.ui.mapping.SaveableComparison#performRevert(org.eclipse.core.runtime.IProgressMonitor)
*/
@Override
protected void performRevert(IProgressMonitor monitor) {
// FIXME how can we revert changes made to this logical model?
// for (Resource resource : resourceSet.getResources()) {
// resource.unload();
// }
// EcoreUtil.resolveAll(resourceSet);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.ui.Saveable#getName()
*/
@Override
public String getName() {
return name;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.ui.Saveable#getToolTipText()
*/
@Override
public String getToolTipText() {
return getName();
}
/**
* {@inheritDoc}
*
* @see org.eclipse.ui.Saveable#getImageDescriptor()
*/
@Override
public ImageDescriptor getImageDescriptor() {
// FIXME where is this displayed when non-null?
return null;
}
/**
* {@inheritDoc}
*
* @see org.eclipse.ui.Saveable#equals(java.lang.Object)
*/
@Override
public boolean equals(Object object) {
return object instanceof EMFSaveableBuffer && name.equals(((EMFSaveableBuffer)object).name)
&& resourceSet.equals(((EMFSaveableBuffer)object).resourceSet);
}
/**
* {@inheritDoc}
*
* @see org.eclipse.ui.Saveable#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int hashCode = prime * name.hashCode();
hashCode += prime * resourceSet.hashCode();
return hashCode;
}
}
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