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/*****************************************************************************
* Copyright (c) 2011 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:
* Patrick Tessier (CEA LIST) Patrick.tessier@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.modelexplorer.widgets;
import java.util.Iterator;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.papyrus.modelexplorer.widgets.EclassModelExplorerBasedContentProvider;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.Stereotype;
/**
*this content provider is specific for UML, it specifies getvalidValue by taking in account stereotypes
*
*/
public class UMLElementMEBContentProvider extends EclassModelExplorerBasedContentProvider {
public UMLElementMEBContentProvider(EObject semanticRoot) {
super(semanticRoot);
}
/**
*
* @see org.eclipse.papyrus.modelexplorer.widgets.EclassModelExplorerBasedContentProvider#isValidValue(java.lang.Object)
*
*/
public boolean isValidValue(Object element) {
if(metaClassWanted!=null){
EObject semanticObject=null;
if(element instanceof IAdaptable){
semanticObject=(EObject)brige.getSemanticElement(element);
}
if(element instanceof EObject){
semanticObject=(EObject)element;
}
//return ok for Ereference
if(element instanceof EReference||semanticObject instanceof EReference){
return true;
}
//this is a Eclass
if(semanticObject!=null){
if(metaClassWanted instanceof EClass){
if(((EClass)metaClassWanted).isSuperTypeOf(semanticObject.eClass())){
if(metaClassNotWantedList.size()>0){
Iterator<Object> iternotwanted= metaClassNotWantedList.iterator();
while( iternotwanted.hasNext()){
Object notWanted=iternotwanted.next();
if(notWanted instanceof EClass)
if(((EClass)notWanted).isSuperTypeOf(semanticObject.eClass())){
return false;
}
}
}
return true;
}
}
//this is a stereotype
if(metaClassWanted instanceof Stereotype){
if(semanticObject instanceof Element){
Element selectedUMLelement= (Element) semanticObject;
return selectedUMLelement.getAppliedStereotypes().contains((Stereotype)metaClassWanted);
}
}
}
return false;
}
return super.isValidValue(element);
}
}
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