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/*****************************************************************************
* Copyright (c) 2013 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:
* Remi Schnekenburger (CEA LIST) - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.profile.externalresource.helper;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EAnnotation;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.util.EcoreUtil;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.util.UMLUtil.StereotypeApplicationHelper;
/**
* Specific Stereotype Application Helper for Papyrus tool. If it detects the model is not a model handled by Papyrus, it will delegate to the standard Stereotype application helper.
*/
public class PapyrusStereotypeApplicationHelper extends StereotypeApplicationHelper {
/** Key for the location strategy value */
public static final String LOCATION_STRATEGY_KEY = "locationStrategy";
/** source for the eannotation that is used to store specific URI for stereotype application resource */
public static final String PAPYRUS_EXTERNAL_RESOURCE_EANNOTATION_SOURCE = "http://www.eclipse.org/papyrus/uml/profile/externalresource"; //$NON-NLS-1$
/**
* {@inheritDoc}
*/
@Override
public EObject applyStereotype(Element element, EClass definition) {
return super.applyStereotype(element, definition);
}
/**
* {@inheritDoc}
*/
@Override
public boolean addToContainmentList(Element element, EObject stereotypeApplication) {
return super.addToContainmentList(element, stereotypeApplication);
}
/**
* {@inheritDoc}
*/
@Override
protected EList<EObject> getContainmentList(Element element, EClass definition) {
// 1. find the current strategy used for the model element
// 2. use the strategy to find the resource and the containment list
// 3. if no strategy found, return usual strategy ==> stereotype application are directly contained by the resource containing the stereotyped element.
IStereotypeApplicationLocationStrategy locationStrategy = getCurrentLocationStrategy(element);
if(locationStrategy ==null) {
return StandardApplicationLocationStrategy.getInstance().getContainmentList(element, definition);
}
return locationStrategy.getContainmentList(element, definition);
}
/**
* Returns the location strategy to use for the given couple element/definition
* @param element the stereotyped element
* @param definition the definition of the stereotype to be applied
* @return the location strategy or <code>null</code> if none was found
*/
public static IStereotypeApplicationLocationStrategy getCurrentLocationStrategy(EObject element) {
EObject container = EcoreUtil.getRootContainer(element, true);
if(container instanceof Element) {
EAnnotation annotation = ((Element)container).getEAnnotation(PAPYRUS_EXTERNAL_RESOURCE_EANNOTATION_SOURCE);
if(annotation == null) {
return null;
}
String location = annotation.getDetails().get(LOCATION_STRATEGY_KEY);
if(location == null) {
return null;
}
IStereotypeApplicationLocationStrategy strategy = StrategyRegistry.getInstance().getStrategy(location);
if(strategy != null) {
return strategy;
}
}
return null;
}
}
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