package org.eclipse.uml2.diagram.clazz.edit.commands;
import org.eclipse.core.commands.ExecutionException;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.emf.common.util.EList;
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.uml2.diagram.clazz.edit.policies.UMLBaseItemSemanticEditPolicy;
import org.eclipse.uml2.uml.Classifier;
import org.eclipse.uml2.uml.Generalization;
import org.eclipse.uml2.uml.GeneralizationSet;
/**
* @generated
*/
public class GeneralizationReorientCommand extends EditElementCommand {
/**
* @generated
*/
private final int reorientDirection;
/**
* @generated
*/
private final EObject oldEnd;
/**
* @generated
*/
private final EObject newEnd;
/**
* @generated
*/
public GeneralizationReorientCommand(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 Generalization) {
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 Classifier && newEnd instanceof Classifier)) {
return false;
}
Classifier target = getLink().getGeneral();
return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistGeneralization_4001(getLink(), getNewSource(), target);
}
/**
* @generated
*/
protected boolean canReorientTargetGen() {
if (!(oldEnd instanceof Classifier && newEnd instanceof Classifier)) {
return false;
}
if (!(getLink().eContainer() instanceof Classifier)) {
return false;
}
Classifier source = (Classifier) getLink().eContainer();
return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistGeneralization_4001(getLink(), source, getNewTarget());
}
/**
* @generated NOT
* #215340 Generalization redirecting to GeneralizationSet
*/
protected boolean canReorientTarget() {
if (newEnd instanceof GeneralizationSet) {
return canReorientTarget(oldEnd, getGeneralClassifier((GeneralizationSet) newEnd));
}
if (newEnd instanceof Generalization) {
return canReorientTarget(oldEnd, ((Generalization) newEnd).getGeneral());
}
return canReorientTargetGen();
}
/**
* @NOT-generated
* #215340 Generalization redirecting to GeneralizationSet
*/
private boolean canReorientTarget(EObject oldTarget, Classifier newTarget) {
if (newTarget == null) {
return false;
}
if (!(oldTarget instanceof Classifier)) {
return false;
}
if (!(getLink().eContainer() instanceof Classifier)) {
return false;
}
Classifier source = (Classifier) getLink().eContainer();
return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistGeneralization_4001(getLink(), source, newTarget);
}
/**
* @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().getGeneralizations().remove(getLink());
getNewSource().getGeneralizations().add(getLink());
return CommandResult.newOKCommandResult(getLink());
}
/**
* @generated NOT
* #215340 Generalization redirecting to GeneralizationSet
*/
protected CommandResult reorientTarget() throws ExecutionException {
getLink().setGeneral(getNewTarget());
if (newEnd instanceof Generalization) {
GeneralizationSet gs = (GeneralizationSet) getNewTarget().getNearestPackage().createPackagedElement("", org.eclipse.uml2.uml.UMLPackage.eINSTANCE.getGeneralizationSet());
gs.getGeneralizations().add((Generalization) newEnd);
gs.getGeneralizations().add(getLink());
}
if (newEnd instanceof GeneralizationSet) {
((GeneralizationSet) newEnd).getGeneralizations().add(getLink());
}
return CommandResult.newOKCommandResult(getLink());
}
/**
* @generated
*/
protected Generalization getLink() {
return (Generalization) getElementToEdit();
}
/**
* @generated
*/
protected Classifier getOldSource() {
return (Classifier) oldEnd;
}
/**
* @generated
*/
protected Classifier getNewSource() {
return (Classifier) newEnd;
}
/**
* @generated
*/
protected Classifier getOldTarget() {
return (Classifier) oldEnd;
}
/**
* @generated NOT
* #215340 Generalization redirecting to GeneralizationSet
*/
protected Classifier getNewTarget() {
if (newEnd instanceof GeneralizationSet) {
return getGeneralClassifier((GeneralizationSet) newEnd);
}
if (newEnd instanceof Generalization) {
return ((Generalization) newEnd).getGeneral();
}
return (Classifier) newEnd;
}
/**
* @NOT-generated
* #215340 Generalization redirecting to GeneralizationSet
*/
private Classifier getGeneralClassifier(GeneralizationSet gs) {
EList<Generalization> generalizations = ((GeneralizationSet) newEnd).getGeneralizations();
if (generalizations.isEmpty()) {
return null;
}
return generalizations.get(0).getGeneral();
}
}