/*****************************************************************************
* Copyright (c) 2010 CEA LIST.
*
*
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* Saadia Dhouib saadia.dhouib@cea.fr - Adapted from Composite Structure Diagram
*
*****************************************************************************/
package org.eclipse.papyrus.uml.diagram.communication.custom.commands;
import java.util.ArrayList;
import java.util.List;
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.requests.ReorientRelationshipRequest;
import org.eclipse.gmf.runtime.notation.Connector;
import org.eclipse.gmf.runtime.notation.View;
import org.eclipse.gmf.runtime.notation.impl.DecorationNodeImpl;
import org.eclipse.papyrus.uml.diagram.communication.custom.helper.CommunicationUtil;
import org.eclipse.papyrus.uml.diagram.communication.custom.helper.MessageInfo;
import org.eclipse.papyrus.uml.diagram.communication.custom.helper.ReconnectMessageHelper;
import org.eclipse.papyrus.uml.diagram.communication.edit.commands.MessageReorientCommand;
import org.eclipse.papyrus.uml.diagram.communication.edit.policies.UMLBaseItemSemanticEditPolicy;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.InteractionFragment;
import org.eclipse.uml2.uml.Lifeline;
import org.eclipse.uml2.uml.Message;
import org.eclipse.uml2.uml.MessageEnd;
// TODO: Auto-generated Javadoc
/**
* The Class CustomMessageReorientCommand is intended to reorient the messages on a connector between two lifelines
* This command is used when a connector is reoriented
*/
public class CustomMessagesReorientCommand extends MessageReorientCommand {
/** the new end. */
protected EObject newEnd;
/** the old end. */
protected EObject oldEnd;
/** the end to reconnect. */
protected int reorientDirection;
/** The messages to edit */
protected List<MessageInfo> elementsToEdit;
/** the Lifeline source of the graphical connector */
Lifeline srcLifeline = null;
/** the Lifeline target of the graphical connector */
Lifeline targetLifeline = null;
/** the graphical edge (or connector) that is reconnected */
Object graphicalRconnectedEdge = null;
/**
* Constructor.
*
* @param req
* the req
*/
public CustomMessagesReorientCommand(ReorientRelationshipRequest req) {
super(req);
this.reorientDirection = req.getDirection();
this.oldEnd = req.getOldRelationshipEnd();
this.newEnd = req.getNewRelationshipEnd();
this.graphicalRconnectedEdge = req.getParameter(UMLBaseItemSemanticEditPolicy.GRAPHICAL_RECONNECTED_EDGE);
this.elementsToEdit = getElementstoEdit();
this.srcLifeline = getsrcLifeline();
this.targetLifeline = gettargetLifeline();
}
/**
* Returns Lifeline source of the graphical connector
*
* @return
* Lifeline source of the graphical connector
*/
protected Lifeline getsrcLifeline() {
if(this.graphicalRconnectedEdge instanceof Connector) {
View src = ((Connector)graphicalRconnectedEdge).getSource();
if(src.getElement() instanceof Lifeline) {
return (Lifeline)src.getElement();
}
}
return null;
}
/**
* Returns Lifeline target of the graphical connector
*
* @return
* Lifeline target of the graphical connector
*/
protected Lifeline gettargetLifeline() {
if(this.graphicalRconnectedEdge instanceof Connector) {
View target = ((Connector)graphicalRconnectedEdge).getTarget();
if(target.getElement() instanceof Lifeline) {
return (Lifeline)target.getElement();
}
}
return null;
}
/**
* Returns the list of messages that will be reoriented
*
* @return
* the list of messages that will be reoriented
*/
protected List<MessageInfo> getElementstoEdit() {
//the list of events covering the old Lifeline which was at the end of the connection
List<InteractionFragment> listEventsOldLifeline = null;
//the list of messages on the connection
List<MessageInfo> listMessagesOnConnection = new ArrayList<MessageInfo>();
//Verify if the oldEnd is a Lifeline
if(oldEnd instanceof Lifeline) {
listEventsOldLifeline = ((Lifeline)oldEnd).getCoveredBys();
//Verify if the graphicalRconnectedEdge is a Connector
if(this.graphicalRconnectedEdge instanceof Connector) {
@SuppressWarnings("rawtypes")
List children = ((Connector)graphicalRconnectedEdge).getChildren();
for(int j = 0; j < children.size(); j++) {
//get the child of the connector,
if(children.get(j) instanceof DecorationNodeImpl) {
DecorationNodeImpl label = (DecorationNodeImpl)children.get(j);
if(label.getElement() instanceof Message) {// if the child of the graphicalRconnectedEdge corresponds to a message on the connector
//Collect the MessageInfo (UML message, source lifeline of the message, target lifeline of the message)
Message mess = (Message)label.getElement();
MessageEnd sendEvent = mess.getSendEvent();
MessageEnd rcvEvent = mess.getReceiveEvent();
// Collection<?> sources = CommunicationLinkMappingHelper.getInstance().getSource(mess);
// Collection<?> targets = CommunicationLinkMappingHelper.getInstance().getTarget(mess);
// if(!sources.isEmpty() && !targets.isEmpty()) {
// Element source = (Element)sources.toArray()[0];
// Element target = (Element)targets.toArray()[0];
// if((source instanceof Lifeline) && (target instanceof Lifeline)) {
// MessageInfo messInfo = new MessageInfo(mess, (Lifeline)source, (Lifeline)target);
// listMessagesOnConnection.add(messInfo);
// }
//
// }
for(int i = 0; i < listEventsOldLifeline.size(); i++) {//find the source and target of the message represented by a label
if(listEventsOldLifeline.get(i).equals(rcvEvent)) {//the host lifeline is the target of the connection,
//it's not important to set the source of the message, we dont need it because we are going to update one end of the message
MessageInfo messInfo = new MessageInfo(mess, null, (Lifeline)oldEnd);
listMessagesOnConnection.add(messInfo);
break;
} else if(listEventsOldLifeline.get(i).equals(sendEvent)) {//the host lifeline is the source of the connection
//it's not important to set the target of the message, we dont need it because we are going to update one end of the message
MessageInfo messInfo = new MessageInfo(mess, (Lifeline)oldEnd, null);
listMessagesOnConnection.add(messInfo);
break;
}
}
}
}
}
}
}
return listMessagesOnConnection;
}
/**
* @see org.eclipse.papyrus.uml.diagram.communication.edit.commands.MessageReorientCommand#canExecute()
*
* @return true if can execute, false else
*/
public boolean canExecute() {
return !areConnected();
//return true;
}
protected boolean canReorient() {
if(!(oldEnd instanceof Element && newEnd instanceof Element)) {
return false;
}
return true;
}
/**
* areConnected
*
* @return
* true if the newEnd Lifeline is already connected to the Lifeline which is at the other end (not the oldEnd) of the graphical connector
*/
protected boolean areConnected() {
if((oldEnd.equals(targetLifeline)) && (newEnd instanceof Lifeline)) {
if(!(CommunicationUtil.verifyUMLLifelinesConnected(srcLifeline, (Lifeline)newEnd) == null)) {
return true;
}
}
if((oldEnd.equals(srcLifeline)) && (newEnd instanceof Lifeline)) {
if(!(CommunicationUtil.verifyUMLLifelinesConnected(targetLifeline, (Lifeline)newEnd) == null)) {
return true;
}
}
return false;
}
protected CommandResult reorient() throws ExecutionException {
if(!elementsToEdit.isEmpty()) {
for(int k = 0; k < elementsToEdit.size(); k++) {//reorient all the elementsToEdit
Message mess = elementsToEdit.get(k).getMessage();
if(!(elementsToEdit.get(k).getTarget() == null)) {
if(elementsToEdit.get(k).getTarget().equals(oldEnd)) {
ReconnectMessageHelper.updateMessageEnd(mess.getReceiveEvent(), (Element)oldEnd, (Element)newEnd);
//refresh the other message end
// done: for(Lifeline current : ((MessageOccurrenceSpecification)mess.getSendEvent()).getCovereds()) {
// if(current != null) {
// ReconnectMessageHelper.updateMessageEnd(mess.getSendEvent(), current, current);
// break done;
// }
// }
}
} else {
if(!(elementsToEdit.get(k).getSource() == null)) {
if(elementsToEdit.get(k).getSource().equals(oldEnd)) {
ReconnectMessageHelper.updateMessageEnd(mess.getSendEvent(), (Element)oldEnd, (Element)newEnd);
}
}
}
}
return CommandResult.newOKCommandResult(elementsToEdit.get(0).getMessage());
}
throw new IllegalStateException();
//throw new UnsupportedOperationException();
}
/**
* @generated
*/
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
if(!canReorient()) {
throw new ExecutionException("Invalid arguments in reorient link command"); //$NON-NLS-1$
}
return reorient();
}
}