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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.compare.merger.internal.merger;
import java.util.List;
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.common.command.UnexecutableCommand;
import org.eclipse.emf.compare.diff.internal.merge.impl.MoveModelElementMerger;
import org.eclipse.emf.compare.diff.metamodel.MoveModelElement;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.xmi.XMIResource;
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.internal.utils.MergerUtils;
import org.eclipse.papyrus.uml.compare.merger.utils.ITransactionalMerger;
import org.eclipse.papyrus.uml.merger.internal.provider.PapyrusMergeCommandProvider;
/**
*
* Created for EMF-Compare, for MoveModelElementMerger
*
*/
public class CMoveModelElementMerger extends MoveModelElementMerger implements ITransactionalMerger {
/**
* {@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 CMoveModelElementMerger");
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 CMoveModelElementMerger");
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("CMoveModelElementMerger#getDoApplyInOriginCommand");
final MoveModelElement theDiff = (MoveModelElement)this.diff;
final EObject leftTarget = theDiff.getLeftTarget();
final EObject leftElement = theDiff.getLeftElement();
final EReference ref = theDiff.getRightElement().eContainmentFeature();
if(ref != null) {
// ordering handling:
int index = -1;
final EObject rightElementParent = theDiff.getRightElement().eContainer();
final Object rightRefValue = rightElementParent.eGet(ref);
if(rightRefValue instanceof List) {
final List<Object> refRightValueList = (List<Object>)rightRefValue;
index = refRightValueList.indexOf(theDiff.getRightElement());
}
// We'll store the element's ID because moving an element deletes its XMI ID
final String elementID = getXMIID(leftElement);
if(rightRefValue instanceof List<?>) {
cmd.append(PapyrusMergeCommandProvider.INSTANCE.getMoveWithIndexCommand(domain, leftTarget, leftTarget, ref, leftElement, index, true));
} else {
cmd.append(PapyrusMergeCommandProvider.INSTANCE.getMoveCommand(domain, leftTarget, leftTarget, ref, leftElement));
}
cmd.append(getPreserveXMIIDCommand(domain, leftElement, elementID));
} else {
// shouldn't be here
cmd.append(UnexecutableCommand.INSTANCE);
}
return cmd;
}
public Command getDoUndoInTargetCommand(final TransactionalEditingDomain domain) {
final CompoundCommand cmd = new CompoundCommand("CMoveModelElementMerger#getDoUndoInTargetCommand");
final MoveModelElement theDiff = (MoveModelElement)this.diff;
final EObject rightTarget = theDiff.getRightTarget();
final EObject rightElement = theDiff.getRightElement();
final EReference ref = theDiff.getLeftElement().eContainmentFeature();
if(ref != null) {
// ordering handling:
int index = -1;
final EObject leftElementParent = theDiff.getLeftElement().eContainer();
final Object leftRefValue = leftElementParent.eGet(ref);
if(leftRefValue instanceof List) {
final List<Object> refLeftValueList = (List<Object>)leftRefValue;
index = refLeftValueList.indexOf(theDiff.getLeftElement());
}
if(leftRefValue instanceof List<?>) {
cmd.append(PapyrusMergeCommandProvider.INSTANCE.getMoveWithIndexCommand(domain, rightTarget, rightTarget, ref, rightElement, index, true));
} else {
cmd.append(PapyrusMergeCommandProvider.INSTANCE.getMoveCommand(domain, rightTarget, rightTarget, ref, rightElement));
}
final String elementID = getXMIID(rightElement);
cmd.append(getPreserveXMIIDCommand(domain, rightElement, elementID));
} else {
// shouldn't be here
cmd.append(UnexecutableCommand.INSTANCE);
}
return cmd;
}
public Command getMergeRequiredDifferencesCommand(final TransactionalEditingDomain domain, final boolean applyInOrigin) {
// TODO the super method mergeRequiredDifferences should be rewritten to use cmd too
return new GMFtoEMFCommandWrapper(new AbstractTransactionalCommand(domain, "Merge Required Differences", null) {
@Override
protected CommandResult doExecuteWithResult(final IProgressMonitor monitor, final IAdaptable info) throws ExecutionException {
CMoveModelElementMerger.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 {
CMoveModelElementMerger.this.postProcess();
return null;
}
});
}
/**
* This command is not the the class PapyrusUMLMergeProvider because it only should be used to preserve the xmi_id after a move,
* but not to change the id
*
* @param domain
* @param element
* @param id
* @return
* the command to set the ID
*/
private Command getPreserveXMIIDCommand(final TransactionalEditingDomain domain, final EObject element, final String id) {
//TODO change for an EMFCommand
return new GMFtoEMFCommandWrapper(new AbstractTransactionalCommand(domain, "Set XMI Command", null) {
@Override
protected CommandResult doExecuteWithResult(final IProgressMonitor monitor, final IAdaptable info) throws ExecutionException {
if(element != null && element.eResource() instanceof XMIResource) {
((XMIResource)element.eResource()).setID(element, id);
}
return CommandResult.newOKCommandResult();
}
});
}
}
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