package IAC.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 IAC.Model;
import IAC.Node;
import IAC.Transition;
import IAC.diagram.edit.policies.IACBaseItemSemanticEditPolicy;
/**
* @generated
*/
public class TransitionReorientCommand extends EditElementCommand {
/**
* @generated
*/
private final int reorientDirection;
/**
* @generated
*/
private final EObject oldEnd;
/**
* @generated
*/
private final EObject newEnd;
/**
* @generated
*/
public TransitionReorientCommand(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 Transition) {
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 Node && newEnd instanceof Node)) {
return false;
}
Node target = getLink().getTarget();
if (!(getLink().eContainer() instanceof Model)) {
return false;
}
Model container = (Model) getLink().eContainer();
return IACBaseItemSemanticEditPolicy.getLinkConstraints()
.canExistTransition_4007(container, getLink(), getNewSource(),
target);
}
/**
* @generated
*/
protected boolean canReorientTarget() {
if (!(oldEnd instanceof Node && newEnd instanceof Node)) {
return false;
}
Node source = getLink().getSource();
if (!(getLink().eContainer() instanceof Model)) {
return false;
}
Model container = (Model) getLink().eContainer();
return IACBaseItemSemanticEditPolicy.getLinkConstraints()
.canExistTransition_4007(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().setSource(getNewSource());
return CommandResult.newOKCommandResult(getLink());
}
/**
* @generated
*/
protected CommandResult reorientTarget() throws ExecutionException {
getLink().setTarget(getNewTarget());
return CommandResult.newOKCommandResult(getLink());
}
/**
* @generated
*/
protected Transition getLink() {
return (Transition) getElementToEdit();
}
/**
* @generated
*/
protected Node getOldSource() {
return (Node) oldEnd;
}
/**
* @generated
*/
protected Node getNewSource() {
return (Node) newEnd;
}
/**
* @generated
*/
protected Node getOldTarget() {
return (Node) oldEnd;
}
/**
* @generated
*/
protected Node getNewTarget() {
return (Node) newEnd;
}
}