| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| */ |
| package org.apache.felix.example.extenderbased.host; |
| |
| import java.awt.event.WindowAdapter; |
| import java.awt.event.WindowEvent; |
| import javax.swing.JFrame; |
| import javax.swing.SwingUtilities; |
| import org.osgi.framework.BundleActivator; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.BundleException; |
| |
| /** |
| * The activator of the host application bundle. The activator creates the |
| * main application <tt>JFrame</tt> and starts tracking <tt>SimpleShape</tt> |
| * extensions. All activity is performed on the Swing event thread to avoid |
| * synchronization and repainting issues. Closing the application window |
| * will result in <tt>Bundle.stop()</tt> being called on the system bundle, |
| * which will cause the framework to shutdown and the JVM to exit. |
| **/ |
| public class Activator implements BundleActivator |
| { |
| private DrawingFrame m_frame = null; |
| private ShapeBundleTracker m_shapetracker = null; |
| |
| /** |
| * Displays the applications window and starts extension tracking; |
| * everything is done on the Swing event thread to avoid synchronization |
| * and repainting issues. |
| * @param context The context of the bundle. |
| **/ |
| @Override |
| public void start(final BundleContext context) |
| { |
| SwingUtilities.invokeLater(new Runnable() { |
| // This creates of the application window. |
| @Override |
| public void run() |
| { |
| m_frame = new DrawingFrame(); |
| m_frame.setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE); |
| m_frame.addWindowListener(new WindowAdapter() |
| { |
| @Override |
| public void windowClosing(WindowEvent evt) |
| { |
| try |
| { |
| context.getBundle(0).stop(); |
| } |
| catch (BundleException ex) |
| { |
| ex.printStackTrace(); |
| } |
| } |
| }); |
| |
| m_frame.setVisible(true); |
| |
| m_shapetracker = new ShapeBundleTracker(context, m_frame); |
| m_shapetracker.open(); |
| } |
| }); |
| } |
| |
| /** |
| * Stops extension tracking and disposes of the application window. |
| * @param context The context of the bundle. |
| **/ |
| @Override |
| public void stop(BundleContext context) |
| { |
| Runnable runner = new Runnable() { |
| // This disposes of the application window. |
| @Override |
| public void run() |
| { |
| m_shapetracker.close(); |
| m_frame.setVisible(false); |
| m_frame.dispose(); |
| } |
| }; |
| |
| if (SwingUtilities.isEventDispatchThread()) |
| { |
| runner.run(); |
| } |
| else |
| { |
| try |
| { |
| javax.swing.SwingUtilities.invokeAndWait(runner); |
| } |
| catch (Exception ex) |
| { |
| ex.printStackTrace(); |
| } |
| } |
| } |
| } |