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/*****************************************************************************
* 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:
* Atos Origin - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.tools.utils;
import org.eclipse.uml2.uml.ExecutionSpecification;
import org.eclipse.uml2.uml.Lifeline;
/**
* Utility class for <code>org.eclipse.uml2.uml.Executionspecification</code><BR>
*/
public class ExecutionSpecificationUtil {
/**
* Retrieve the Lifeline associated with an ExecutionSpecification.
* According to the UML Specification, an ExecutionSpecification must have a start and a finish.
*
* In Papyrus, an ExecutionSpecification may not have a start and finish.
* To handle this specific case, we return the first Lifeline that the ES covered.
*
* @param es
* the targeted execution specification
* @return the associated Lifeline, or null if the ES has no start, no finish, no covered Lifeline.
*/
public static Lifeline getExecutionSpecificationLifeline(ExecutionSpecification es) {
Lifeline lifeline = null;
if(es.getStart() != null) {
lifeline = es.getStart().getCovereds().get(0);
} else if(es.getFinish() != null) {
lifeline = es.getFinish().getCovereds().get(0);
}
if(lifeline == null) {
if(!es.getCovereds().isEmpty()) {
lifeline = es.getCovereds().get(0);
}
}
return lifeline;
}
}
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