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.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.AssociationClass;
import org.eclipse.uml2.uml.CollaborationUse;
import org.eclipse.uml2.uml.Package;
/**
* @generated
*/
public class AssociationClassConnectorReorientCommand extends EditElementCommand {
/**
* @generated
*/
private final int reorientDirection;
/**
* @generated
*/
private final EObject oldEnd;
/**
* @generated
*/
private final EObject newEnd;
/**
* @generated
*/
public AssociationClassConnectorReorientCommand(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 AssociationClass) {
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 CollaborationUse && newEnd instanceof CollaborationUse)) {
return false;
}
if (getLink().getCollaborationUses().size() != 1) {
return false;
}
CollaborationUse target = (CollaborationUse) getLink().getCollaborationUses().get(0);
if (!(getLink().eContainer() instanceof Package)) {
return false;
}
Package container = (Package) getLink().eContainer();
return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistAssociationClass_4014(container, getLink(), getNewSource(), target);
}
/**
* @generated
*/
protected boolean canReorientTarget() {
if (!(oldEnd instanceof CollaborationUse && newEnd instanceof CollaborationUse)) {
return false;
}
if (getLink().getCollaborationUses().size() != 1) {
return false;
}
CollaborationUse source = (CollaborationUse) getLink().getCollaborationUses().get(0);
if (!(getLink().eContainer() instanceof Package)) {
return false;
}
Package container = (Package) getLink().eContainer();
return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canExistAssociationClass_4014(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().getCollaborationUses().remove(getOldSource());
getLink().getCollaborationUses().add(getNewSource());
return CommandResult.newOKCommandResult(getLink());
}
/**
* @generated
*/
protected CommandResult reorientTarget() throws ExecutionException {
getLink().getCollaborationUses().remove(getOldTarget());
getLink().getCollaborationUses().add(getNewTarget());
return CommandResult.newOKCommandResult(getLink());
}
/**
* @generated
*/
protected AssociationClass getLink() {
return (AssociationClass) getElementToEdit();
}
/**
* @generated
*/
protected CollaborationUse getOldSource() {
return (CollaborationUse) oldEnd;
}
/**
* @generated
*/
protected CollaborationUse getNewSource() {
return (CollaborationUse) newEnd;
}
/**
* @generated
*/
protected CollaborationUse getOldTarget() {
return (CollaborationUse) oldEnd;
}
/**
* @generated
*/
protected CollaborationUse getNewTarget() {
return (CollaborationUse) newEnd;
}
}