/*****************************************************************************
* Copyright (c) 2009 Atos Origin.
*
*
* 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:
* Emilien Perico (Atos Origin) emilien.perico@atosorigin.com - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.usecase.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.common.helper.AssociationHelper;
import org.eclipse.papyrus.uml.diagram.usecase.edit.policies.UMLBaseItemSemanticEditPolicy;
import org.eclipse.uml2.uml.Association;
import org.eclipse.uml2.uml.Package;
import org.eclipse.uml2.uml.Type;
/**
* @generated
*/
public class AssociationReorientCommand extends EditElementCommand {
/**
* @generated
*/
private final int reorientDirection;
/**
* @generated
*/
private final EObject oldEnd;
/**
* @generated
*/
private final EObject newEnd;
/**
* @generated
*/
public AssociationReorientCommand(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 Association) {
return false;
}
if(reorientDirection == ReorientRelationshipRequest.REORIENT_SOURCE) {
return canReorientSource();
}
if(reorientDirection == ReorientRelationshipRequest.REORIENT_TARGET) {
return canReorientTarget();
}
return false;
}
/**
* @generated NOT
*/
protected boolean canReorientSource() {
if(!(oldEnd instanceof Type && newEnd instanceof Type)) {
return false;
}
if(getLink().getEndTypes().size() == 1) {
return false;
}
Type target = (Type)getLink().getEndTypes().get(0);
if(!(getLink().eContainer() instanceof Package)) {
return false;
}
Package container = (Package)getLink().eContainer();
return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistAssociation_4011(container, getLink(), getNewSource(), target);
}
/**
* @generated NOT
*/
protected boolean canReorientTarget() {
if(!(oldEnd instanceof Type && newEnd instanceof Type)) {
return false;
}
if(getLink().getEndTypes().size() == 1) {
return false;
}
Type source = (Type)getLink().getEndTypes().get(0);
if(!(getLink().eContainer() instanceof Package)) {
return false;
}
Package container = (Package)getLink().eContainer();
return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistAssociation_4011(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 NOT
*/
protected CommandResult reorientSource() throws ExecutionException {
return AssociationHelper.reconnect(AssociationHelper.source, getLink(), getNewSource());
}
/**
* @generated NOT
*/
protected CommandResult reorientTarget() throws ExecutionException {
return AssociationHelper.reconnect(AssociationHelper.target, getLink(), getNewTarget());
}
/**
* @generated
*/
protected Association getLink() {
return (Association)getElementToEdit();
}
/**
* @generated
*/
protected Type getOldSource() {
return (Type)oldEnd;
}
/**
* @generated
*/
protected Type getNewSource() {
return (Type)newEnd;
}
/**
* @generated
*/
protected Type getOldTarget() {
return (Type)oldEnd;
}
/**
* @generated
*/
protected Type getNewTarget() {
return (Type)newEnd;
}
}