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/*****************************************************************************
* Copyright (c) 2012 CEA LIST.
*
*
* 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:
* Vincent Lorenzo (CEA LIST) Vincent.Lorenzo@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.merger.provider;
import java.util.Iterator;
import java.util.List;
import java.util.ListIterator;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.common.command.Command;
import org.eclipse.emf.common.command.CompoundCommand;
import org.eclipse.emf.compare.FactoryException;
import org.eclipse.emf.compare.diff.internal.merge.impl.ReferenceChangeLeftTargetMerger;
import org.eclipse.emf.compare.diff.metamodel.DiffElement;
import org.eclipse.emf.compare.diff.metamodel.ReferenceChangeLeftTarget;
import org.eclipse.emf.compare.diff.metamodel.ReferenceOrderChange;
import org.eclipse.emf.compare.diff.metamodel.ResourceDependencyChange;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.InternalEObject;
import org.eclipse.emf.ecore.resource.Resource;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.emf.transaction.TransactionalEditingDomain;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.emf.commands.core.command.AbstractTransactionalCommand;
import org.eclipse.papyrus.commands.wrappers.GMFtoEMFCommandWrapper;
import org.eclipse.papyrus.uml.compare.merger.Activator;
import org.eclipse.papyrus.uml.compare.merger.utils.MergerUtils;
import org.eclipse.papyrus.uml.compare.merger.utils.PapyrusCompareEObjectCopier;
import org.eclipse.papyrus.uml.compare.merger.utils.PapyrusEFactory;
public class CReferenceChangeLeftTargetMerger extends ReferenceChangeLeftTargetMerger implements ICommandMerger {
/**
* {@inheritDoc}
*
* @see org.eclipse.emf.compare.diff.merge.IMerger#applyInOrigin()
*/
@Override
public void applyInOrigin() {
if(MergerUtils.usePapyrusMerger()) {
final TransactionalEditingDomain domain = MergerUtils.getEditingDomain();
final Command cmd = getApplyInOriginCommand(domain);
if(cmd.canExecute()) {
domain.getCommandStack().execute(cmd);
}
} else {
super.applyInOrigin();
}
}
/**
*
* @see org.eclipse.emf.compare.diff.merge.DefaultMerger#undoInTarget()
*
*/
@Override
public void undoInTarget() {
if(MergerUtils.usePapyrusMerger()) {
final TransactionalEditingDomain domain = MergerUtils.getEditingDomain();
final Command cmd = getUndoInTargetCommand(domain);
if(cmd.canExecute()) {
domain.getCommandStack().execute(cmd);
}
} else {
super.undoInTarget();
}
}
public Command getApplyInOriginCommand(final TransactionalEditingDomain domain) {
// mergeRequiredDifferences(true);
// doApplyInOrigin();
// postProcess();
CompoundCommand cmd = new CompoundCommand("Apply in Origin Command for CReferenceChangeLeftTargetMerger");
cmd.append(getMergeRequiredDifferencesCommand(domain, true));
cmd.append(getDoApplyInOriginCommand(domain));
cmd.append(getPostProcessCommand(domain));
return cmd;
}
public Command getUndoInTargetCommand(final TransactionalEditingDomain domain) {
// mergeRequiredDifferences(false);
// doUndoInTarget();
// postProcess();
CompoundCommand cmd = new CompoundCommand("Undo In Target Command for CReferenceChangeLeftTargetMerger");
cmd.append(getMergeRequiredDifferencesCommand(domain, false));
cmd.append(getDoUndoInTargetCommand(domain));
cmd.append(getPostProcessCommand(domain));
return cmd;
}
public Command getDoApplyInOriginCommand(final TransactionalEditingDomain domain) {
final CompoundCommand cmd = new CompoundCommand("CReferenceChangeLeftTargetMerger#getDoApplyInOriginCommand");
final ReferenceChangeLeftTarget theDiff = (ReferenceChangeLeftTarget)this.diff;
final EObject element = theDiff.getLeftElement();
final EObject leftTarget = theDiff.getLeftTarget();
try {
cmd.append(PapyrusEFactory.getERemoveCommand(domain, element, theDiff.getReference().getName(), leftTarget));
} catch (final FactoryException e) {
Activator.log.error(e);
}
cmd.append(new GMFtoEMFCommandWrapper(new AbstractTransactionalCommand(domain, null, null) {
@Override
protected CommandResult doExecuteWithResult(final IProgressMonitor monitor, final IAdaptable info) throws ExecutionException {
// we should now have a look for AddReferencesLinks needing this object
final Iterator<EObject> siblings = getDiffModel().eAllContents();
while(siblings.hasNext()) {
final DiffElement op = (DiffElement)siblings.next();
if(op instanceof ReferenceChangeLeftTarget) {
final ReferenceChangeLeftTarget link = (ReferenceChangeLeftTarget)op;
// now if I'm in the target References I should put my copy in the origin
if(link.getReference().equals(theDiff.getReference().getEOpposite()) && link.getLeftTarget().equals(element)) {
removeFromContainer(link);
}
} else if(op instanceof ResourceDependencyChange) {
final ResourceDependencyChange link = (ResourceDependencyChange)op;
final Resource res = link.getRoots().get(0).eResource();
if(res == leftTarget.eResource()) {
EcoreUtil.remove(link);
res.unload();
}
}
}
return CommandResult.newOKCommandResult();
}
}));
return cmd;
}
public Command getDoUndoInTargetCommand(final TransactionalEditingDomain domain) {
final CompoundCommand cmd = new CompoundCommand();
final ReferenceChangeLeftTarget theDiff = (ReferenceChangeLeftTarget)this.diff;
final EReference reference = theDiff.getReference();
final EObject element = theDiff.getRightElement();
final EObject leftTarget = theDiff.getLeftTarget();
final EObject rightTarget = theDiff.getRightTarget();
int index = -1;
if(reference.isMany()) {
final EObject leftElement = theDiff.getLeftElement();
final Object leftRefValue = leftElement.eGet(reference);
if(leftRefValue instanceof List) {
final List<?> refLeftValueList = (List<?>)leftRefValue;
index = refLeftValueList.indexOf(leftTarget);
}
}
final PapyrusCompareEObjectCopier copier = new PapyrusCompareEObjectCopier(diff);
Command copierCommand = copier.getCopyReferenceValueCommand(domain, reference, element, leftTarget, rightTarget, index);
cmd.append(copierCommand);
final AbstractTransactionalCommand updateDiffModelCommand = new AbstractTransactionalCommand(domain, "Update Diff Model", null) {
@Override
protected CommandResult doExecuteWithResult(final IProgressMonitor monitor, final IAdaptable info) throws ExecutionException {
final EObject copiedValue = copier.getCopiedValue(leftTarget);
final Iterator<EObject> siblings = getDiffModel().eAllContents();
while(siblings.hasNext()) {
final DiffElement op = (DiffElement)siblings.next();
if(op instanceof ReferenceChangeLeftTarget) {
final ReferenceChangeLeftTarget link = (ReferenceChangeLeftTarget)op;
// now if I'm in the target References I should put my copy in the origin
if(link.getReference().equals(reference.getEOpposite()) && link.getLeftTarget().equals(element)) {
removeFromContainer(link);
}
} else if(op instanceof ReferenceOrderChange) {
final ReferenceOrderChange link = (ReferenceOrderChange)op;
if(link.getLeftElement() == element && link.getReference() == reference) {
final ListIterator<EObject> targetIterator = link.getLeftTarget().listIterator();
boolean replaced = false;
while(!replaced && targetIterator.hasNext()) {
final EObject target = targetIterator.next();
if(target.eIsProxy() && equalProxyURIs(((InternalEObject)target).eProxyURI(), EcoreUtil.getURI(leftTarget))) {
targetIterator.set(copiedValue);
replaced = true;
}
}
}
}
}
return CommandResult.newOKCommandResult();
}
};
cmd.append(new GMFtoEMFCommandWrapper(updateDiffModelCommand));
return cmd;
}
public Command getMergeRequiredDifferencesCommand(final TransactionalEditingDomain domain, final boolean applyInOrigin) {
return new GMFtoEMFCommandWrapper(new AbstractTransactionalCommand(domain, "Merge Required Differences", null) {
@Override
protected CommandResult doExecuteWithResult(final IProgressMonitor monitor, final IAdaptable info) throws ExecutionException {
CReferenceChangeLeftTargetMerger.this.mergeRequiredDifferences(applyInOrigin);
return null;
}
});
}
public Command getPostProcessCommand(final TransactionalEditingDomain domain) {
return new GMFtoEMFCommandWrapper(new AbstractTransactionalCommand(domain, "Merge Required Differences", null) {
@Override
protected CommandResult doExecuteWithResult(final IProgressMonitor monitor, final IAdaptable info) throws ExecutionException {
CReferenceChangeLeftTargetMerger.this.postProcess();
return null;
}
});
}
}
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