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package org.eclipse.papyrus.diagram.sequence.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.ReorientReferenceRelationshipRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.ReorientRelationshipRequest;
import org.eclipse.uml2.uml.Comment;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.Model;
import org.eclipse.papyrus.diagram.sequence.edit.policies.UMLBaseItemSemanticEditPolicy;
/**
* @generated
*/
public class CommentAnnotatedElementReorientCommand extends EditElementCommand {
/**
* @generated
*/
private final int reorientDirection;
/**
* @generated
*/
private final EObject referenceOwner;
/**
* @generated
*/
private final EObject oldEnd;
/**
* @generated
*/
private final EObject newEnd;
/**
* @generated
*/
public CommentAnnotatedElementReorientCommand(
ReorientReferenceRelationshipRequest request) {
super(request.getLabel(), null, request);
reorientDirection = request.getDirection();
referenceOwner = request.getReferenceOwner();
oldEnd = request.getOldRelationshipEnd();
newEnd = request.getNewRelationshipEnd();
}
/**
* @generated
*/
@Override
public boolean canExecute() {
if (false == referenceOwner instanceof Comment) {
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 Element && newEnd instanceof Comment)) {
return false;
}
return UMLBaseItemSemanticEditPolicy.LinkConstraints
.canExistCommentAnnotatedElement_3008(getNewSource(),
getOldTarget());
}
/**
* @generated
*/
protected boolean canReorientTarget() {
if (!(oldEnd instanceof Element && newEnd instanceof Element)) {
return false;
}
return UMLBaseItemSemanticEditPolicy.LinkConstraints
.canExistCommentAnnotatedElement_3008(getOldSource(),
getNewTarget());
}
/**
* @generated
*/
@Override
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 not
*/
protected CommandResult reorientSource() throws ExecutionException {
getOldSource().getAnnotatedElements().remove(getOldTarget());
getNewSource().getAnnotatedElements().add(getOldTarget());
// modify the parent of the old Comment?
// if now it has only one annotated Element
if (getOldSource().getAnnotatedElements().size() == 1) {
getOldSource().getAnnotatedElements().get(0).getOwnedComments()
.add(getOldSource());
}
// if now it has no annotated Elements
if (getOldSource().getAnnotatedElements().size() == 0) {
((Model) getOldSource().eResource().getContents().get(0))
.getOwnedComments().add(getOldSource());
}
// modify the parent of the new Comment?
// if now it has only one annotated Element
if (getNewSource().getAnnotatedElements().size() == 1) {
getNewSource().getAnnotatedElements().get(0).getOwnedComments()
.add(getNewSource());
}
// if now it has more than one annotated Element
if (getNewSource().getAnnotatedElements().size() > 1) {
((Model) getNewSource().eResource().getContents().get(0))
.getOwnedComments().add(getNewSource());
}
return CommandResult.newOKCommandResult(referenceOwner);
}
/**
* @generated not
*/
protected CommandResult reorientTarget() throws ExecutionException {
getOldSource().getAnnotatedElements().remove(getOldTarget());
getOldSource().getAnnotatedElements().add(getNewTarget());
// if the number of annotatedElements of the Comment is 1, change the
// container of the Comment
if (getOldSource().getAnnotatedElements().size() == 1) {
getNewTarget().getOwnedComments().add(getOldSource());
}
return CommandResult.newOKCommandResult(referenceOwner);
}
/**
* @generated
*/
protected Comment getOldSource() {
return (Comment) referenceOwner;
}
/**
* @generated
*/
protected Comment getNewSource() {
return (Comment) newEnd;
}
/**
* @generated
*/
protected Element getOldTarget() {
return (Element) oldEnd;
}
/**
* @generated
*/
protected Element getNewTarget() {
return (Element) newEnd;
}
}
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