| /* |
| * 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.coordination.impl; |
| |
| import java.util.Hashtable; |
| |
| import javax.management.MBeanServer; |
| import javax.management.MalformedObjectNameException; |
| import javax.management.ObjectName; |
| |
| import org.apache.felix.jmx.service.coordination.CoordinatorMBean; |
| import org.apache.felix.service.coordination.Coordinator; |
| import org.osgi.framework.Bundle; |
| import org.osgi.framework.BundleActivator; |
| import org.osgi.framework.BundleContext; |
| import org.osgi.framework.Constants; |
| import org.osgi.framework.ServiceFactory; |
| import org.osgi.framework.ServiceReference; |
| import org.osgi.framework.ServiceRegistration; |
| import org.osgi.util.tracker.ServiceTracker; |
| |
| @SuppressWarnings("deprecation") |
| public class Activator implements BundleActivator { |
| |
| private CoordinationMgr mgr; |
| |
| private ServiceTracker mbeanServerTracker; |
| |
| private ServiceRegistration coordinatorService; |
| |
| public void start(BundleContext context) { |
| mgr = new CoordinationMgr(); |
| |
| try { |
| mbeanServerTracker = new MBeanServerTracker(context, mgr); |
| mbeanServerTracker.open(); |
| } catch (MalformedObjectNameException e) { |
| // TODO log |
| } |
| |
| ServiceFactory factory = new CoordinatorFactory(mgr); |
| Hashtable<String, String> props = new Hashtable<String, String>(); |
| props.put(Constants.SERVICE_DESCRIPTION, |
| "Coordinator Service Implementation"); |
| props.put(Constants.SERVICE_VENDOR, "The Apache Software Foundation"); |
| coordinatorService = context.registerService( |
| Coordinator.class.getName(), factory, props); |
| } |
| |
| public void stop(BundleContext context) { |
| if (coordinatorService != null) { |
| coordinatorService.unregister(); |
| coordinatorService = null; |
| } |
| |
| if (mbeanServerTracker != null) { |
| mbeanServerTracker.close(); |
| mbeanServerTracker = null; |
| } |
| |
| mgr.cleanUp(); |
| } |
| |
| static final class CoordinatorFactory implements ServiceFactory { |
| |
| private final CoordinationMgr mgr; |
| |
| CoordinatorFactory(final CoordinationMgr mgr) { |
| this.mgr = mgr; |
| } |
| |
| public Object getService(Bundle bundle, ServiceRegistration registration) { |
| return new CoordinatorImpl(bundle, mgr); |
| } |
| |
| public void ungetService(Bundle bundle, |
| ServiceRegistration registration, Object service) { |
| // nothing to do |
| } |
| |
| } |
| |
| static final class MBeanServerTracker extends ServiceTracker { |
| |
| private final CoordinationMgr mgr; |
| |
| private final ObjectName objectName; |
| |
| MBeanServerTracker(final BundleContext context, |
| final CoordinationMgr mgr) throws MalformedObjectNameException { |
| super(context, MBeanServer.class.getName(), null); |
| this.mgr = mgr; |
| this.objectName = new ObjectName(CoordinatorMBean.OBJECTNAME); |
| } |
| |
| @Override |
| public Object addingService(ServiceReference reference) { |
| MBeanServer server = (MBeanServer) super.addingService(reference); |
| |
| try { |
| server.registerMBean(mgr, objectName); |
| } catch (Exception e) { |
| // TODO: log |
| } |
| |
| return server; |
| } |
| |
| @Override |
| public void removedService(ServiceReference reference, Object service) { |
| try { |
| ((MBeanServer) service).unregisterMBean(objectName); |
| } catch (Exception e) { |
| // TODO: log |
| } |
| |
| super.removedService(reference, service); |
| } |
| } |
| } |