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/*******************************************************************************
* Copyright (c) 2005 IBM Corporation and others.
* 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:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.internal.app;
import org.eclipse.equinox.registry.IExtensionRegistry;
import org.eclipse.osgi.service.debug.DebugOptions;
import org.osgi.framework.*;
import org.osgi.util.tracker.ServiceTracker;
import org.osgi.util.tracker.ServiceTrackerCustomizer;
public class Activator implements BundleActivator, ServiceTrackerCustomizer{
public static final String PI_APP = "org.eclipse.equinox.app"; //$NON-NLS-1$
public static boolean DEBUG = false;
private BundleContext bContext;
private ContainerManager containerMgr;
// tracks the extension registry
private ServiceTracker registryTracker;
public void start(BundleContext context) throws Exception {
this.bContext = context;
getDebugOptions(context);
// set the app manager context before starting the containerMgr
AppManager.setBundleContext(context);
registryTracker = new ServiceTracker(context, IExtensionRegistry.class.getName(), this);
registryTracker.open();
// start the app commands for the console
try {
AppCommands.create(context);
} catch(NoClassDefFoundError e) {
// catch incase CommandProvider is not available
}
}
public void stop(BundleContext context) throws Exception {
// stop the app commands for the console
try {
AppCommands.destroy(context);
} catch(NoClassDefFoundError e) {
// catch incase CommandProvider is not available
}
// close the registry tracker; this will stop the containerMgr if it was started
registryTracker.close();
registryTracker = null;
// unset the app manager context after the containerMgr has been stopped
AppManager.setBundleContext(null);
bContext = null;
}
private void getDebugOptions(BundleContext context) {
ServiceReference debugRef = context.getServiceReference(DebugOptions.class.getName());
if (debugRef == null)
return;
DebugOptions debugOptions = (DebugOptions) context.getService(debugRef);
DEBUG = debugOptions.getBooleanOption(PI_APP + "/debug", false); //$NON-NLS-1$
context.ungetService(debugRef);
}
public Object addingService(ServiceReference reference) {
if (containerMgr != null)
return null;
// create and start the app containerMgr
IExtensionRegistry registry = (IExtensionRegistry) bContext.getService(reference);
containerMgr = new ContainerManager(bContext, registry);
containerMgr.startContainer();
return registry;
}
public void modifiedService(ServiceReference reference, Object service) {
// do nothing
}
public void removedService(ServiceReference reference, Object service) {
if (containerMgr == null)
return;
// stop the app containerMgr
containerMgr.stopContainer();
containerMgr = null;
}
}
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