/*******************************************************************************
* Copyright (c) 2006-2012
* Software Technology Group, Dresden University of Technology
* DevBoost GmbH, Berlin, Amtsgericht Charlottenburg, HRB 140026
*
* 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:
* Software Technology Group - TU Dresden, Germany;
* DevBoost GmbH - Berlin, Germany
* - initial API and implementation
******************************************************************************/
/*
* Copyright (c) 2006, 2007 Borland Software Corporation
*
* 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:
* Dmitry Stadnik (Borland) - initial API and implementation
*/
package org.reuseware.application.taipan.gmf.editor.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.reuseware.application.taipan.EscortShipsOrder;
import org.reuseware.application.taipan.Ship;
import org.reuseware.application.taipan.Warship;
import org.reuseware.application.taipan.gmf.editor.edit.policies.TaiPanBaseItemSemanticEditPolicy;
/**
* @generated
*/
public class EscortShipsOrderReorientCommand extends EditElementCommand {
/**
* @generated
*/
private final int reorientDirection;
/**
* @generated
*/
private final EObject oldEnd;
/**
* @generated
*/
private final EObject newEnd;
/**
* @generated
*/
public EscortShipsOrderReorientCommand(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 EscortShipsOrder) {
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 Warship && newEnd instanceof Warship)) {
return false;
}
if (getLink().getShips().size() != 1) {
return false;
}
Ship target = (Ship) getLink().getShips().get(0);
return TaiPanBaseItemSemanticEditPolicy.LinkConstraints
.canExistEscortShipsOrder_4006(getNewSource(), target);
}
/**
* @generated
*/
protected boolean canReorientTarget() {
if (!(oldEnd instanceof Ship && newEnd instanceof Ship)) {
return false;
}
if (!(getLink().eContainer() instanceof Warship)) {
return false;
}
Warship source = (Warship) getLink().eContainer();
return TaiPanBaseItemSemanticEditPolicy.LinkConstraints
.canExistEscortShipsOrder_4006(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 {
getOldSource().setEscortOrder(null);
getNewSource().setEscortOrder(getLink());
return CommandResult.newOKCommandResult(getLink());
}
/**
* @generated
*/
protected CommandResult reorientTarget() throws ExecutionException {
getLink().getShips().remove(getOldTarget());
getLink().getShips().add(getNewTarget());
return CommandResult.newOKCommandResult(getLink());
}
/**
* @generated
*/
protected EscortShipsOrder getLink() {
return (EscortShipsOrder) getElementToEdit();
}
/**
* @generated
*/
protected Warship getOldSource() {
return (Warship) oldEnd;
}
/**
* @generated
*/
protected Warship getNewSource() {
return (Warship) newEnd;
}
/**
* @generated
*/
protected Ship getOldTarget() {
return (Ship) oldEnd;
}
/**
* @generated
*/
protected Ship getNewTarget() {
return (Ship) newEnd;
}
}