/*****************************************************************************
 * 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:
 *  Patrick Tessier (CEA LIST) Patrick.tessier@cea.fr - Initial API and implementation
 *
 *****************************************************************************/
package org.eclipse.papyrus.uml.modelexplorer;

import java.util.ArrayList;
import java.util.Iterator;

import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.emf.common.util.EList;
import org.eclipse.emf.ecore.EObject;
import org.eclipse.papyrus.infra.core.resource.ModelSet;
import org.eclipse.papyrus.infra.core.resource.uml.UmlModel;
import org.eclipse.papyrus.infra.core.resource.uml.UmlUtils;
import org.eclipse.papyrus.infra.emf.providers.MoDiscoContentProvider;
import org.eclipse.uml2.uml.util.UMLUtil;

/**
 * this is a specific content provider used to not display UML stereotype applications
 * 
 * @deprecated Use {@link org.eclipse.papyrus.uml.tools.providers.UMLContentProvider} instead
 */
@Deprecated
public class UMLContentProvider extends MoDiscoContentProvider {


	/**
	 * apex updated
	 * 
	 * Return the initial values from the input.
	 * Input should be of type {@link UmlModel}.
	 * 
	 * @see org.eclipse.gmt.modisco.infra.browser.uicore.CustomizableModelContentProvider#getRootElements(java.lang.Object)
	 * 
	 * @param inputElement
	 * @return
	 */
	@Override
	protected EObject[] getRootElements(ModelSet modelSet) {
		UmlModel umlModel = (UmlUtils.getUmlModel(modelSet));
		
		if(umlModel == null)
			return null;

		EList<EObject> contents = umlModel.getResource().getContents();
		ArrayList<EObject> result = new ArrayList<EObject>();
		Iterator<EObject> iterator = contents.iterator();

		while(iterator.hasNext()) {
			EObject eObject = iterator.next();
			//functionality that comes from UML2 plugins
			if(UMLUtil.getStereotype(eObject) == null) {
				result.add(eObject);
			}
		}
		
		return result.toArray(new EObject[result.size()]);		
	}
}