Java tutorial
/******************************************************************************* * Copyright (c) 2014 Obeo. * 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: * Obeo - initial API and implementation *******************************************************************************/ package org.eclipse.emf.ecoretools.design; import java.util.Set; import org.eclipse.emf.common.util.URI; import org.eclipse.sirius.business.api.componentization.ViewpointRegistry; import org.eclipse.sirius.viewpoint.description.Viewpoint; import com.google.common.collect.Sets; public class EcoreToolsViewpoints { private ViewpointRegistry registry; public EcoreToolsViewpoints(ViewpointRegistry registry) { this.registry = registry; } public Viewpoint design() { URI uri = URI.createURI("viewpoint:/org.eclipse.emf.ecoretools.design/Design"); return getViewpointOrNull(uri); } protected Viewpoint getViewpointOrNull(URI uri) { try { return registry.getViewpoint(uri); } catch (Exception e) { /* * If we can't retrieve the viewpoint then it means we don't * contribute it. */ } return null; } public Viewpoint archetype() { return getViewpointOrNull(URI.createURI("viewpoint:/org.eclipse.emf.ecoretools.design/Archetype")); } public Viewpoint review() { return getViewpointOrNull(URI.createURI("viewpoint:/org.eclipse.emf.ecoretools.design/Review")); } public Viewpoint generation() { return getViewpointOrNull(URI.createURI("viewpoint:/org.eclipse.emf.ecoretools.design/Generation")); } public Set<Viewpoint> all() { Set<Viewpoint> ecoreToolsViewpoints = Sets.newLinkedHashSet(); Viewpoint vp = design(); if (vp != null) ecoreToolsViewpoints.add(vp); vp = archetype(); if (vp != null) ecoreToolsViewpoints.add(vp); vp = review(); if (vp != null) ecoreToolsViewpoints.add(vp); vp = generation(); if (vp != null) ecoreToolsViewpoints.add(vp); return ecoreToolsViewpoints; } public static EcoreToolsViewpoints fromViewpointRegistry() { return new EcoreToolsViewpoints(ViewpointRegistry.getInstance()); } }