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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:
* Vincent Lorenzo (CEA LIST) vincent.lorenzo@cea.fr - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.nattable.provider;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.papyrus.infra.nattable.provider.GenericCellLabelProvider;
import org.eclipse.papyrus.infra.nattable.utils.AxisUtils;
import org.eclipse.papyrus.uml.nattable.utils.UMLTableUtils;
import org.eclipse.uml2.uml.Element;
import org.eclipse.uml2.uml.Property;
import org.eclipse.uml2.uml.UMLPackage;
/**
* Abstract Class for UML Cell provider
*
* @author Vincent Lorenzo
*
*/
public abstract class AbstractUMLNattableCellLabelProvider extends GenericCellLabelProvider {
/**
*
* @param obj1
* the first Object
* @param obj2
* the second Obejct
* @return
* a list of 2 elements when
* <ul>
* <li>the first obejct is an instanceof Element</li>
* <li>the second object is an UML EstructuralFeature or the real property if we are working with a property of stereotype</li>
* </ul>
* or <code>null</code> if the conditions are not satisfied
*/
protected List<Object> getUMLObjects(final Object obj1, final Object obj2) {
List<Object> objects = new ArrayList<Object>();
if(obj1 instanceof Element) {
objects.add(obj1);
objects.add(obj2);
} else if(obj2 instanceof Element) {
objects.add(obj2);
objects.add(obj1);
}
if(objects.size() == 2) {
Object feature = objects.get(1);
String id = AxisUtils.getPropertyId(feature);
if(id != null) {
if(id.startsWith(UMLTableUtils.PROPERTY_OF_STEREOTYPE_PREFIX)) {
Property prop = UMLTableUtils.getRealStereotypeProperty((EObject)objects.get(0), id);
if(prop != null) {
objects.remove(1);
objects.add(prop);
} else {
objects = Collections.emptyList();
}
}
} else if(feature instanceof EStructuralFeature) {
final EObject featureContainer = ((EStructuralFeature)feature).eContainer();
if(!UMLPackage.eINSTANCE.eContents().contains(featureContainer)) {
objects = Collections.emptyList();
}
}
} else {
objects = Collections.emptyList();
}
return objects;
}
}
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