/*****************************************************************************
* Copyright (c) 2009-2011 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:
* Yann Tanguy (CEA LIST) yann.tanguy@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.composite.edit.commands;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.gmf.runtime.common.core.command.CommandResult;
import org.eclipse.gmf.runtime.emf.type.core.commands.EditElementCommand;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
import org.eclipse.papyrus.uml.diagram.composite.edit.policies.UMLBaseItemSemanticEditPolicy;
import org.eclipse.uml2.uml.Connector;
import org.eclipse.uml2.uml.ConnectorEnd;
import org.eclipse.uml2.uml.StructuredClassifier;
/**
* @generated
*/
public class ConnectorReorientCommand extends EditElementCommand {
/**
* @generated
*/
private final int reorientDirection;
/**
* @generated
*/
private final EObject oldEnd;
/**
* @generated
*/
private final EObject newEnd;
/**
* @generated
*/
public ConnectorReorientCommand(ReorientRelationshipRequest request) {
super(request.getLabel(), request.getRelationship(), request);
reorientDirection = request.getDirection();
oldEnd = request.getOldRelationshipEnd();
newEnd = request.getNewRelationshipEnd();
}
/**
* @generated
*/
public boolean canExecute() {
if(false == getElementToEdit() instanceof Connector) {
return false;
}
if(reorientDirection == ReorientRelationshipRequest.REORIENT_SOURCE) {
return canReorientSource();
}
if(reorientDirection == ReorientRelationshipRequest.REORIENT_TARGET) {
return canReorientTarget();
}
return false;
}
/**
* @generated
*/
protected boolean canReorientSource() {
if(!(oldEnd instanceof ConnectorEnd && newEnd instanceof ConnectorEnd)) {
return false;
}
if(getLink().getEnds().size() != 1) {
return false;
}
ConnectorEnd target = (ConnectorEnd)getLink().getEnds().get(0);
if(!(getLink().eContainer() instanceof StructuredClassifier)) {
return false;
}
StructuredClassifier container = (StructuredClassifier)getLink().eContainer();
return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistConnector_4013(container, getLink(), getNewSource(), target);
}
/**
* @generated
*/
protected boolean canReorientTarget() {
if(!(oldEnd instanceof ConnectorEnd && newEnd instanceof ConnectorEnd)) {
return false;
}
if(getLink().getEnds().size() != 1) {
return false;
}
ConnectorEnd source = (ConnectorEnd)getLink().getEnds().get(0);
if(!(getLink().eContainer() instanceof StructuredClassifier)) {
return false;
}
StructuredClassifier container = (StructuredClassifier)getLink().eContainer();
return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistConnector_4013(container, getLink(), source, getNewTarget());
}
/**
* @generated
*/
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
if(!canExecute()) {
throw new ExecutionException("Invalid arguments in reorient link command"); //$NON-NLS-1$
}
if(reorientDirection == ReorientRelationshipRequest.REORIENT_SOURCE) {
return reorientSource();
}
if(reorientDirection == ReorientRelationshipRequest.REORIENT_TARGET) {
return reorientTarget();
}
throw new IllegalStateException();
}
/**
* @generated
*/
protected CommandResult reorientSource() throws ExecutionException {
getLink().getEnds().remove(getOldSource());
getLink().getEnds().add(getNewSource());
return CommandResult.newOKCommandResult(getLink());
}
/**
* @generated
*/
protected CommandResult reorientTarget() throws ExecutionException {
getLink().getEnds().remove(getOldTarget());
getLink().getEnds().add(getNewTarget());
return CommandResult.newOKCommandResult(getLink());
}
/**
* @generated
*/
protected Connector getLink() {
return (Connector)getElementToEdit();
}
/**
* @generated
*/
protected ConnectorEnd getOldSource() {
return (ConnectorEnd)oldEnd;
}
/**
* @generated
*/
protected ConnectorEnd getNewSource() {
return (ConnectorEnd)newEnd;
}
/**
* @generated
*/
protected ConnectorEnd getOldTarget() {
return (ConnectorEnd)oldEnd;
}
/**
* @generated
*/
protected ConnectorEnd getNewTarget() {
return (ConnectorEnd)newEnd;
}
}