package org.eclipse.papyrus.uml.diagram.communication.custom.commands;
/*****************************************************************************
* 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 (CEA LIST) saadia.dhouib@cea.fr
*
*****************************************************************************/
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.common.core.command.ICommand;
import org.eclipse.gmf.runtime.emf.type.core.IElementType;
import org.eclipse.gmf.runtime.emf.type.core.requests.ConfigureRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateElementRequest;
import org.eclipse.gmf.runtime.emf.type.core.requests.CreateRelationshipRequest;
import org.eclipse.papyrus.uml.diagram.common.commands.SemanticAdapter;
import org.eclipse.papyrus.uml.diagram.communication.custom.helper.CommunicationCommandHelper;
import org.eclipse.papyrus.uml.diagram.communication.edit.commands.MessageCreateCommand;
import org.eclipse.papyrus.uml.diagram.communication.edit.policies.UMLBaseItemSemanticEditPolicy;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.Interaction;
import org.eclipse.uml2.uml.Message;
import org.eclipse.uml2.uml.MessageSort;
/**
*
* Class for creating the semantic message (UML message)
*
*/
public class CustomMessageSemanticCreateCommand extends MessageCreateCommand {
/**
* Source of message
*/
private final EObject source;
/**
* Target of message
*/
private final EObject target;
/**
* container of message
*/
private final Interaction container;
protected SemanticAdapter semanticAdapter;
/**
*
* Constructor of Message Custom Create Command
*
* @param req
* @param source
* @param target
*/
public CustomMessageSemanticCreateCommand(CreateRelationshipRequest req, EObject source, EObject target) {
super(req, source, target);
this.source = source;
this.target = target;
container = deduceContainer(source, target);
this.semanticAdapter = new SemanticAdapter(null, null);
setResult(CommandResult.newOKCommandResult(this.semanticAdapter));
}
/**
* Add a condition on the MOS container
*
* @generated NOT
*/
@Override
public boolean canExecute() {
if(source == null && target == null) {
return false;
}
if(source != null && false == source instanceof Element) {
return false;
}
if(target != null && false == target instanceof Element) {
return false;
}
if(getSource() == null) {
return true; // link creation is in progress; source is not defined
// yet
}
// target may be null here but it's possible to check constraint
if(getContainer() == null) {
return false;
}
return UMLBaseItemSemanticEditPolicy.getLinkConstraints().canCreateMessage_8009(getContainer(), getSource(), getTarget());
}
/**
* Create a MessageOccurenceSpecification and the call event when a message
* is created
*
*
*/
@Override
protected CommandResult doExecuteWithResult(IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
if(!canExecute()) {
throw new ExecutionException("Invalid arguments in create link command"); //$NON-NLS-1$
}
Message message = CommunicationCommandHelper.doCreateMessage(container, MessageSort.SYNCH_CALL_LITERAL, getSource(), getTarget());
if(message != null) {
doConfigure(message, monitor, info);
((CreateElementRequest)getRequest()).setNewElement(message);
semanticAdapter.setElement(message);
return CommandResult.newOKCommandResult(semanticAdapter);
}
return CommandResult.newErrorCommandResult("There is no valid container for events"); //$NON-NLS-1$
}
@Override
protected void doConfigure(Message newElement, IProgressMonitor monitor, IAdaptable info) throws ExecutionException {
IElementType elementType = ((CreateElementRequest)getRequest()).getElementType();
ConfigureRequest configureRequest = new ConfigureRequest(getEditingDomain(), newElement, elementType);
configureRequest.setClientContext(((CreateElementRequest)getRequest()).getClientContext());
configureRequest.addParameters(getRequest().getParameters());
configureRequest.setParameter(CreateRelationshipRequest.SOURCE, getSource());
configureRequest.setParameter(CreateRelationshipRequest.TARGET, getTarget());
ICommand configureCommand = elementType.getEditCommand(configureRequest);
if(configureCommand != null && configureCommand.canExecute()) {
configureCommand.execute(monitor, info);
}
}
/**
* Default approach is to traverse ancestors of the source to find instance
* of container. Modify with appropriate logic.
*
*
*/
protected Interaction deduceContainer(EObject source, EObject target) {
// Find container element for the new link.
// Climb up by containment hierarchy starting from the source
// and return the first element that is instance of the container class.
for(EObject element = source; element != null; element = element.eContainer()) {
if(element instanceof Interaction) {
return (Interaction)element;
}
}
return null;
}
}