Activator


1   /*******************************************************************************
2    * Copyright (c) 2007 IBM Corporation and others.
3    * All rights reserved. This program and the accompanying materials
4    * are made available under the terms of the Eclipse Public License v1.0
5    * which accompanies this distribution, and is available at
6    * http://www.eclipse.org/legal/epl-v10.html
7    *
8    * Contributors:
9    * IBM Corporation - initial API and implementation
10   * yyyymmdd bug      Email and other contact information
11   * -------- -------- -----------------------------------------------------------
12   * 20070201   154100 pmoogk@ca.ibm.com - Peter Moogk, Port internet code from WTP to Eclipse base.
13   *******************************************************************************/
14  package org.eclipse.ui.internal.net;
15  
16  import org.eclipse.core.net.proxy.IProxyService;
17  import org.eclipse.ui.plugin.AbstractUIPlugin;
18  import org.osgi.framework.BundleContext;
19  import org.osgi.util.tracker.ServiceTracker;
20  
21  /**
22   * The activator class controls the plug-in life cycle
23   */
24  public class Activator extends AbstractUIPlugin {
25  
26      // The plug-in ID
27      public static final String   PLUGIN_ID = "org.eclipse.ui.net"; //$NON-NLS-1$
28  
29      // The shared instance
30      private static Activator plugin;
31  
32      private ServiceTracker tracker;
33  
34      /**
35       * The constructor
36       */
37      public Activator() {
38          plugin = this;
39      }
40  
41      /**
42       * Returns the shared instance
43       * 
44       * @return the shared instance
45       */
46      public static Activator getDefault() {
47          return plugin;
48      }
49  
50      /**
51       * Return the {@link IProxyService} or <code>null</code> if the service is
52       * not available.
53       * 
54       * @return the {@link IProxyService} or <code>null</code>
55       */
56      public IProxyService getProxyService() {
57          return (IProxyService) tracker.getService();
58      }
59  
60      public void start(BundleContext context) throws Exception   {
61          super.start(context);
62          tracker = new ServiceTracker(getBundle().getBundleContext(),
63                  IProxyService.class.getName(), null);
64          tracker.open();
65      }
66  
67      public void stop(BundleContext context) throws Exception   {
68          plugin = null;
69          super.stop(context);
70          tracker.close();
71      }
72  }
73
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