| /******************************************************************************* |
| * Copyright (c) 2000, 2004 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.core.internal.compatibility; |
| |
| import org.eclipse.core.internal.plugins.PluginDescriptor; |
| import org.eclipse.core.internal.runtime.InternalPlatform; |
| import org.eclipse.core.runtime.*; |
| import org.osgi.framework.*; |
| import org.osgi.service.startlevel.StartLevel; |
| import org.osgi.util.tracker.ServiceTracker; |
| |
| public class PluginActivator implements BundleActivator { |
| private BundleContext context; |
| private Plugin plugin; |
| |
| private static ServiceTracker startLevelTracker = null; |
| |
| public static StartLevel getStartLevel(BundleContext context) { |
| if (startLevelTracker == null) { |
| startLevelTracker = new ServiceTracker(context, StartLevel.class.getName(), null); |
| startLevelTracker.open(); |
| } |
| return (StartLevel) startLevelTracker.getService(); |
| } |
| |
| public BundleContext getBundleContext() { |
| return context; |
| } |
| |
| public PluginActivator() { |
| super(); |
| } |
| |
| public void start(BundleContext context) throws Exception { |
| // will bail if it is not time to start |
| ensureNormalStartup(context); |
| this.context = context; |
| PluginDescriptor pd = (PluginDescriptor) Platform.getPluginRegistry().getPluginDescriptor(context.getBundle().getSymbolicName()); |
| plugin = pd.getPlugin(); |
| try { |
| plugin.start(context); |
| plugin.startup(); |
| } catch(Exception e) { |
| plugin.shutdown(); |
| plugin.stop(context); |
| pd.markAsDeactivated(); |
| throw e; |
| } |
| } |
| |
| private void ensureNormalStartup(BundleContext context) throws BundleException { |
| // TODO look at other ways of doing this to make it faster (getService is not as fast |
| // as we might like but it is not horrible. Also, we never close the tracker. |
| StartLevel startLevel = getStartLevel(context); |
| if (startLevel == null) |
| return; |
| if (startLevel.getStartLevel() <= startLevel.getBundleStartLevel(context.getBundle())) { |
| IStatus status = new Status(IStatus.WARNING, Platform.PI_RUNTIME, 0, org.eclipse.core.internal.plugins.Policy.bind("activator.applicationNotStarted", context.getBundle().getSymbolicName()), null); //$NON-NLS-1$ |
| InternalPlatform.getDefault().log(status); |
| throw new BundleException(status.getMessage()); |
| } |
| } |
| |
| public void stop(BundleContext context) throws Exception { |
| try { |
| plugin.shutdown(); |
| plugin.stop(context); |
| ((PluginDescriptor) plugin.getDescriptor()).doPluginDeactivation(); |
| } finally { |
| this.context = null; |
| } |
| } |
| } |