org.eclipse.osbp.tools.graphical.entity.lib/src/org/eclipse/osbp/tools/graphical/entity/lib/Activator.java

/**
 *                                                                            
 * Copyright (c) 2011, 2016 - Lunifera GmbH (Gross Enzersdorf), Loetz GmbH&Co.KG (69115 Heidelberg, Germany)
 *                                                                            
 * 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:   
 * Florian Pirchner (Lunifera GmbH) - initial implementation 
 */

package org.eclipse.osbp.tools.graphical.entity.lib;

import java.util.HashSet;
import java.util.Set;

import org.eclipse.sirius.business.api.componentization.ViewpointRegistry;
import org.eclipse.sirius.viewpoint.description.Viewpoint;
import org.eclipse.ui.plugin.AbstractUIPlugin;
import org.osgi.framework.BundleContext;

/**
 * The activator class controls the plug-in life cycle
 */
public class Activator extends AbstractUIPlugin {
	// The plug-in ID
	public static final String PLUGIN_ID = "org.eclipse.osbp.tools.graphical.entity.lib";

	// The shared instance
	private static Activator plugin;

	private static Set<Viewpoint> viewpoints;

	/**
	 * The constructor
	 */
	public Activator() {
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.plugin.AbstractUIPlugin#start(org.osgi.framework.BundleContext
	 * )
	 */
	public void start(BundleContext context) throws Exception {
		super.start(context);
		plugin = this;
		viewpoints = new HashSet<Viewpoint>();
		viewpoints
				.addAll(ViewpointRegistry
						.getInstance()
						.registerFromPlugin(
								PLUGIN_ID
										+ "/description/org.eclipse.osbp.tools.graphical.entity.odesign"));
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * org.eclipse.ui.plugin.AbstractUIPlugin#stop(org.osgi.framework.BundleContext
	 * )
	 */
	public void stop(BundleContext context) throws Exception {
		plugin = null;
		if (viewpoints != null) {
			for (final Viewpoint viewpoint : viewpoints) {
				ViewpointRegistry.getInstance().disposeFromPlugin(viewpoint);
			}
			viewpoints.clear();
			viewpoints = null;
		}
		super.stop(context);
	}

	/**
	 * Returns the shared instance
	 * 
	 * @return the shared instance
	 */
	public static Activator getDefault() {
		return plugin;
	}
}