/*
* Copyright (c) 2010 National Aeronautics and Space Administration. All rights reserved.
*/
package net.certware.argument.euz.diagram.edit.commands;
import net.certware.argument.euz.Criteria;
import net.certware.argument.euz.Strategy;
import net.certware.argument.euz.diagram.edit.policies.EuzBaseItemSemanticEditPolicy;
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.ReorientReferenceRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
/**
* @generated
*/
public class StrategyStrategyCriteriaReorientCommand extends EditElementCommand {
/**
* @generated
*/
private final int reorientDirection;
/**
* @generated
*/
private final EObject referenceOwner;
/**
* @generated
*/
private final EObject oldEnd;
/**
* @generated
*/
private final EObject newEnd;
/**
* @generated
*/
public StrategyStrategyCriteriaReorientCommand(
ReorientReferenceRelationshipRequest request) {
super(request.getLabel(), null, request);
reorientDirection = request.getDirection();
referenceOwner = request.getReferenceOwner();
oldEnd = request.getOldRelationshipEnd();
newEnd = request.getNewRelationshipEnd();
}
/**
* @generated
*/
public boolean canExecute() {
if (false == referenceOwner instanceof Strategy) {
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 Criteria && newEnd instanceof Strategy)) {
return false;
}
return EuzBaseItemSemanticEditPolicy.getLinkConstraints()
.canExistStrategyStrategyCriteria_4012(getNewSource(),
getOldTarget());
}
/**
* @generated
*/
protected boolean canReorientTarget() {
if (!(oldEnd instanceof Criteria && newEnd instanceof Criteria)) {
return false;
}
return EuzBaseItemSemanticEditPolicy.getLinkConstraints()
.canExistStrategyStrategyCriteria_4012(getOldSource(),
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().getStrategyCriteria().remove(getOldTarget());
getNewSource().getStrategyCriteria().add(getOldTarget());
return CommandResult.newOKCommandResult(referenceOwner);
}
/**
* @generated
*/
protected CommandResult reorientTarget() throws ExecutionException {
getOldSource().getStrategyCriteria().remove(getOldTarget());
getOldSource().getStrategyCriteria().add(getNewTarget());
return CommandResult.newOKCommandResult(referenceOwner);
}
/**
* @generated
*/
protected Strategy getOldSource() {
return (Strategy) referenceOwner;
}
/**
* @generated
*/
protected Strategy getNewSource() {
return (Strategy) newEnd;
}
/**
* @generated
*/
protected Criteria getOldTarget() {
return (Criteria) oldEnd;
}
/**
* @generated
*/
protected Criteria getNewTarget() {
return (Criteria) newEnd;
}
}