package org.eclipse.gmf.tooling.examples.affixednode.diagram.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.gmf.tooling.examples.affixednode.Canvas;
import org.eclipse.gmf.tooling.examples.affixednode.Communication;
import org.eclipse.gmf.tooling.examples.affixednode.IncomingCommunicator;
import org.eclipse.gmf.tooling.examples.affixednode.OutcomingCommunicator;
import org.eclipse.gmf.tooling.examples.affixednode.diagram.edit.policies.AffixednodeBaseItemSemanticEditPolicy;
/**
* @generated
*/
public class CommunicationReorientCommand extends EditElementCommand {
/**
* @generated
*/
private final int reorientDirection;
/**
* @generated
*/
private final EObject oldEnd;
/**
* @generated
*/
private final EObject newEnd;
/**
* @generated
*/
public CommunicationReorientCommand(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 Communication) {
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 OutcomingCommunicator && newEnd instanceof OutcomingCommunicator)) {
return false;
}
IncomingCommunicator target = getLink().getIncomingCommunicator();
if (!(getLink().eContainer() instanceof Canvas)) {
return false;
}
Canvas container = (Canvas) getLink().eContainer();
return AffixednodeBaseItemSemanticEditPolicy.getLinkConstraints().canExistCommunication_4001(container, getLink(), getNewSource(), target);
}
/**
* @generated
*/
protected boolean canReorientTarget() {
if (!(oldEnd instanceof IncomingCommunicator && newEnd instanceof IncomingCommunicator)) {
return false;
}
OutcomingCommunicator source = getLink().getOutcomingCommunicator();
if (!(getLink().eContainer() instanceof Canvas)) {
return false;
}
Canvas container = (Canvas) getLink().eContainer();
return AffixednodeBaseItemSemanticEditPolicy.getLinkConstraints().canExistCommunication_4001(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().setOutcomingCommunicator(getNewSource());
return CommandResult.newOKCommandResult(getLink());
}
/**
* @generated
*/
protected CommandResult reorientTarget() throws ExecutionException {
getLink().setIncomingCommunicator(getNewTarget());
return CommandResult.newOKCommandResult(getLink());
}
/**
* @generated
*/
protected Communication getLink() {
return (Communication) getElementToEdit();
}
/**
* @generated
*/
protected OutcomingCommunicator getOldSource() {
return (OutcomingCommunicator) oldEnd;
}
/**
* @generated
*/
protected OutcomingCommunicator getNewSource() {
return (OutcomingCommunicator) newEnd;
}
/**
* @generated
*/
protected IncomingCommunicator getOldTarget() {
return (IncomingCommunicator) oldEnd;
}
/**
* @generated
*/
protected IncomingCommunicator getNewTarget() {
return (IncomingCommunicator) newEnd;
}
}