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  /*
   * 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.jclouds.management.osgi;
 
 
 
 public class Activator implements BundleActivator {
 
    private ServiceTracker mbeanServerTracker = null;
    private final JcloudsManagement jcloudsManagement = new JcloudsManagement();

   
Called when this bundle is started so the Framework can perform the bundle-specific activities necessary to start this bundle. This method can be used to register services or to allocate any resources that this bundle needs.

This method must complete and return to its caller in a timely manner.

Parameters:
context The execution context of the bundle being started.
Throws:
java.lang.Exception If this method throws an exception, this bundle is marked as stopped and the Framework will remove this bundle's listeners, unregister all services registered by this bundle, and release all services used by this bundle.
 
    @Override
    public void start(BundleContext contextthrows Exception {
       .start(context);
        = new ServiceTracker(contextMBeanServer.class.getName(), null) {
 
          @Override
          public Object addingService(ServiceReference reference) {
             Object obj = super.addingService(reference);
             if (MBeanServer.class.isAssignableFrom(obj.getClass())) {
                ..bind((MBeanServerobj);
                ..manage("core");
             }
             return obj;
          }
 
          @Override
          public void modifiedService(ServiceReference referenceObject service) {
             super.modifiedService(referenceservice);
          }
 
          @Override
          public void removedService(ServiceReference referenceObject service) {
             if (MBeanServer.class.isAssignableFrom(service.getClass())) {
                ..unbind((MBeanServerservice);
             }
             super.removedService(referenceservice);
          }
       };
       .open();
    }

   
Called when this bundle is stopped so the Framework can perform the bundle-specific activities necessary to stop the bundle. In general, this method should undo the work that the BundleActivator.start method started. There should be no active threads that were started by this bundle when this bundle returns. A stopped bundle must not call any Framework objects.

This method must complete and return to its caller in a timely manner.

Parameters:
context The execution context of the bundle being stopped.
Throws:
java.lang.Exception If this method throws an exception, the bundle is still marked as stopped, and the Framework will remove the bundle's listeners, unregister all services registered by the bundle, and release all services used by the bundle.
 
    @Override
    public void stop(BundleContext contextthrows Exception {
       .stop(context);
       if ( != null) {
          .close();
      }
   }
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