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/*****************************************************************************
* Copyright (c) 2017 CEA LIST and others.
*
* 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:
* CEA LIST - Initial API and implementation
*
*****************************************************************************/
package org.eclipse.papyrus.uml.tools.providers;
import java.util.List;
import java.util.stream.Collectors;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.papyrus.infra.emf.utils.EClassNameComparator;
import org.eclipse.papyrus.infra.widgets.providers.IStaticContentProvider;
import org.eclipse.uml2.uml.UMLPackage;
/**
* This contents provider provides all UML EClass from UMLPackage
*
*/
public class UMLEClassContentProvider implements IStaticContentProvider {
/**
* provided EClass
*/
private List<EClass> umlEClass;
/**
* @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
*
* @param inputElement
* @return
*/
@Override
public Object[] getElements(Object inputElement) {
return getElements();
}
/**
* @see org.eclipse.papyrus.infra.widgets.providers.IStaticContentProvider#getElements()
*
* @return
*/
@Override
public Object[] getElements() {
if (null == umlEClass) {
umlEClass = UMLPackage.eINSTANCE.eContents().stream().filter(EClass.class::isInstance).map(EClass.class::cast).collect(Collectors.toList());
umlEClass.sort(new EClassNameComparator());
}
return umlEClass.toArray();
}
}
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