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//
// ========================================================================
// Copyright (c) 1995-2013 Mort Bay Consulting Pty. Ltd.
// ------------------------------------------------------------------------
// All rights reserved. This program and the accompanying materials
// are made available under the terms of the Eclipse Public License v1.0
// and Apache License v2.0 which accompanies this distribution.
//
// The Eclipse Public License is available at
// http://www.eclipse.org/legal/epl-v10.html
//
// The Apache License v2.0 is available at
// http://www.opensource.org/licenses/apache2.0.php
//
// You may elect to redistribute this code under either of these licenses.
// ========================================================================
//
package org.eclipse.jetty.osgi.boot;
import org.eclipse.jetty.osgi.boot.internal.serverfactory.DefaultJettyAtJettyHomeHelper;
import org.eclipse.jetty.osgi.boot.internal.serverfactory.JettyServerServiceTracker;
import org.eclipse.jetty.osgi.boot.internal.webapp.BundleWatcher;
import org.eclipse.jetty.osgi.boot.internal.webapp.ServiceWatcher;
import org.eclipse.jetty.osgi.boot.utils.internal.PackageAdminServiceTracker;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.handler.ContextHandler;
import org.eclipse.jetty.util.log.Log;
import org.eclipse.jetty.util.log.Logger;
import org.osgi.framework.Bundle;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceRegistration;
import org.osgi.util.tracker.BundleTracker;
/**
* JettyBootstrapActivator
*
* Bootstrap jetty and publish a default Server instance as an OSGi service.
*
* Listen for other Server instances to be published as services and support them as deployment targets.
*
* Listen for Bundles to be activated, and deploy those that represent webapps/ContextHandlers to one of the known Server instances.
*
*/
public class JettyBootstrapActivator implements BundleActivator
{
private static final Logger LOG = Log.getLogger(JettyBootstrapActivator.class);
private static JettyBootstrapActivator INSTANCE = null;
public static JettyBootstrapActivator getInstance()
{
return INSTANCE;
}
private ServiceRegistration _registeredServer;
private ServiceWatcher _jettyContextHandlerTracker;
private PackageAdminServiceTracker _packageAdminServiceTracker;
private BundleTracker _webBundleTracker;
private BundleContext _bundleContext;
private JettyServerServiceTracker _jettyServerServiceTracker;
/* ------------------------------------------------------------ */
/**
* Setup a new jetty Server, registers it as a service. Setup the Service
* tracker for the jetty ContextHandlers that are in charge of deploying the
* webapps. Setup the BundleListener that supports the extender pattern for
* the jetty ContextHandler.
*
* @param context
*/
public void start(final BundleContext context) throws Exception
{
INSTANCE = this;
_bundleContext = context;
// track other bundles and fragments attached to this bundle that we
// should activate.
_packageAdminServiceTracker = new PackageAdminServiceTracker(context);
// track jetty Server instances that we should support as deployment targets
_jettyServerServiceTracker = new JettyServerServiceTracker();
context.addServiceListener(_jettyServerServiceTracker, "(objectclass=" + Server.class.getName() + ")");
// track ContextHandler class instances and deploy them to one of the known Servers
_jettyContextHandlerTracker = new ServiceWatcher();
context.addServiceListener(_jettyContextHandlerTracker, "(objectclass=" + ContextHandler.class.getName() + ")");
// Create a default jetty instance right now.
Server defaultServer = DefaultJettyAtJettyHomeHelper.startJettyAtJettyHome(context);
//Create a bundle tracker to help deploy webapps and ContextHandlers
BundleWatcher bundleTrackerCustomizer = new BundleWatcher();
bundleTrackerCustomizer.setWaitForDefaultServer(defaultServer != null);
_webBundleTracker = new BundleTracker(context, Bundle.ACTIVE | Bundle.STOPPING, bundleTrackerCustomizer);
bundleTrackerCustomizer.setBundleTracker(_webBundleTracker);
bundleTrackerCustomizer.open();
}
/* ------------------------------------------------------------ */
/**
* Stop the activator.
*
* @see
* org.osgi.framework.BundleActivator#stop(org.osgi.framework.BundleContext)
*/
public void stop(BundleContext context) throws Exception
{
try
{
if (_webBundleTracker != null)
{
_webBundleTracker.close();
_webBundleTracker = null;
}
if (_jettyContextHandlerTracker != null)
{
context.removeServiceListener(_jettyContextHandlerTracker);
_jettyContextHandlerTracker = null;
}
if (_jettyServerServiceTracker != null)
{
_jettyServerServiceTracker.stop();
context.removeServiceListener(_jettyServerServiceTracker);
_jettyServerServiceTracker = null;
}
if (_packageAdminServiceTracker != null)
{
_packageAdminServiceTracker.stop();
context.removeServiceListener(_packageAdminServiceTracker);
_packageAdminServiceTracker = null;
}
if (_registeredServer != null)
{
try
{
_registeredServer.unregister();
}
catch (IllegalArgumentException ill)
{
// already unregistered.
}
finally
{
_registeredServer = null;
}
}
}
finally
{
INSTANCE = null;
}
}
}
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