| /******************************************************************************* |
| * Copyright (c) 2007, 2010 BMW Car IT, Technische Universitaet Muenchen, and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * BMW Car IT - Initial API and implementation |
| * Technische Universitaet Muenchen - Major refactoring and extension |
| *******************************************************************************/ |
| package org.eclipse.emf.edapt.internal.common; |
| |
| import java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.emf.ecore.EObject; |
| import org.eclipse.emf.ecore.EReference; |
| import org.eclipse.emf.ecore.EStructuralFeature.Setting; |
| import org.eclipse.emf.ecore.resource.Resource; |
| import org.eclipse.emf.ecore.util.EcoreUtil.UsageCrossReferencer; |
| import org.eclipse.emf.ecore.xmi.XMLResource; |
| |
| /** |
| * Helper methods to deal with Ecore models. |
| * |
| * @author herrmama |
| * @author $Author$ |
| * @version $Rev$ |
| * @levd.rating RED Rev: |
| */ |
| public final class EcoreUtils { |
| |
| /** Constructor. */ |
| private EcoreUtils() { |
| // hidden, since this class only provides static helper methods |
| } |
| |
| /** |
| * Get the inverse of a reference to an element within a search area which |
| * is denoted by the root elements. |
| */ |
| public static List<? extends EObject> getInverse(EObject element, |
| EReference reference, List<? extends EObject> searchArea) { |
| final List<EObject> inverseList = new ArrayList<EObject>(); |
| for (final Setting setting : UsageCrossReferencer.find(element, searchArea)) { |
| if (setting.getEStructuralFeature() == reference) { |
| inverseList.add(setting.getEObject()); |
| } |
| } |
| return inverseList; |
| } |
| |
| /** Set the UUID of a model element. */ |
| public static void setUUID(EObject element, String uuid) { |
| final XMLResource resource = getXMLResource(element); |
| if (resource != null) { |
| resource.setID(element, uuid); |
| } |
| } |
| |
| /** Get the {@link XMLResource} in which a model element is contained. */ |
| private static XMLResource getXMLResource(EObject element) { |
| final Resource resource = element.eResource(); |
| if (resource != null && resource instanceof XMLResource) { |
| final XMLResource xmlResource = (XMLResource) resource; |
| return xmlResource; |
| } |
| return null; |
| } |
| |
| /** Get the UUID of a model element. */ |
| public static String getUUID(EObject element) { |
| final XMLResource resource = getXMLResource(element); |
| if (resource != null) { |
| return resource.getID(element); |
| } |
| return null; |
| } |
| } |