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/*******************************************************************************
* Copyright (c) 2009, 2012 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.diff.internal.merge.impl;
import com.google.common.base.Predicate;
import com.google.common.collect.Collections2;
import com.google.common.collect.Lists;
import java.util.Collection;
import org.eclipse.emf.compare.EMFComparePlugin;
import org.eclipse.emf.compare.FactoryException;
import org.eclipse.emf.compare.diff.merge.DefaultMerger;
import org.eclipse.emf.compare.diff.metamodel.ReferenceOrderChange;
import org.eclipse.emf.compare.util.EFactory;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.InternalEObject;
/**
* Merger for a {@link ReferenceOrderChange} operation.
*
* @author <a href="mailto:laurent.goubet@obeo.fr">Laurent Goubet</a>
*/
public class ReferenceOrderChangeMerger extends DefaultMerger {
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.diff.merge.DefaultMerger#doApplyInOrigin()
*/
@Override
public void doApplyInOrigin() {
final ReferenceOrderChange theDiff = (ReferenceOrderChange)this.diff;
final EObject leftElement = theDiff.getLeftElement();
final Collection<EObject> target = Lists.newArrayList(Collections2.filter(theDiff.getLeftTarget(),
new Predicate<EObject>() {
public boolean apply(EObject input) {
return !input.eIsProxy()
|| !DefaultMerger.isEMFCompareProxy(((InternalEObject)input).eProxyURI());
}
}));
try {
EFactory.eSet(leftElement, theDiff.getReference().getName(), target);
} catch (final FactoryException e) {
EMFComparePlugin.log(e, true);
}
}
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.diff.merge.DefaultMerger#doUndoInTarget()
*/
@Override
public void doUndoInTarget() {
final ReferenceOrderChange theDiff = (ReferenceOrderChange)this.diff;
final EObject rightElement = theDiff.getRightElement();
final Collection<EObject> target = Lists.newArrayList(Collections2.filter(theDiff.getRightTarget(),
new Predicate<EObject>() {
public boolean apply(EObject input) {
return !input.eIsProxy()
|| !DefaultMerger.isEMFCompareProxy(((InternalEObject)input).eProxyURI());
}
}));
try {
EFactory.eSet(rightElement, theDiff.getReference().getName(), target);
} catch (final FactoryException e) {
EMFComparePlugin.log(e, true);
}
}
}
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