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/*****************************************************************************
* Copyright (c) 2010 CEA
*
*
* 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:
* Soyatec - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.sequence.command;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
import org.eclipse.papyrus.uml.diagram.sequence.edit.commands.Message5ReorientCommand;
import org.eclipse.papyrus.uml.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
import org.eclipse.papyrus.uml.diagram.sequence.util.MessageConnectionHelper;
import org.eclipse.papyrus.uml.diagram.sequence.util.ReconnectMessageHelper;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.Interaction;
/**
* @author Jin Liu (jin.liu@soyatec.com)
*/
public class CustomMessage5ReorientCommand extends Message5ReorientCommand {
/**
* Constructor.
*
* @param request
*/
public CustomMessage5ReorientCommand(ReorientRelationshipRequest request) {
super(request);
}
/**
* @Override
*/
@Override
protected boolean canReorientSource() {
if (!(getOldSource() instanceof Element && getNewSource() instanceof Element)) {
return false;
}
if (!(getLink().eContainer() instanceof Interaction)) {
return false;
}
Element target = MessageConnectionHelper.getMessageTarget(getLink());
Interaction container = (Interaction) getLink().eContainer();
if (!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_DeleteEdge(container, getLink(), getNewSource(), target)) {
return false;
}
return MessageConnectionHelper.canReorientSource(getLink(), getNewSource());
}
/**
* @Override
*/
@Override
protected boolean canReorientTarget() {
if (!(getOldTarget() instanceof Element && getNewTarget() instanceof Element)) {
return false;
}
Element source = MessageConnectionHelper.getMessageSource(getLink());
if (!(getLink().eContainer() instanceof Interaction)) {
return false;
}
Interaction container = (Interaction) getLink().eContainer();
if (!UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistMessage_DeleteEdge(container, getLink(), source, getNewTarget())) {
return false;
}
return MessageConnectionHelper.canReorientTarget(getLink(), getNewTarget());
}
/**
* @Override
*/
@Override
protected CommandResult reorientSource() throws ExecutionException {
ReconnectMessageHelper.updateMessageEnd(getLink().getSendEvent(), getOldSource(), getNewSource());
return CommandResult.newOKCommandResult(getLink());
}
/**
* @Override
*/
@Override
protected CommandResult reorientTarget() throws ExecutionException {
ReconnectMessageHelper.updateMessageEnd(getLink().getReceiveEvent(), getOldTarget(), getNewTarget());
ReconnectMessageHelper.updateMessage(getLink());
return CommandResult.newOKCommandResult(getLink());
}
}
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