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/*******************************************************************************
 * Copyright (c) 2010 Boeing.
 * 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:
 *     Boeing - initial API and implementation
 *******************************************************************************/
package org.eclipse.osee.ote.service;

import org.eclipse.osee.connection.service.IConnectionService;
import org.eclipse.osee.framework.messaging.MessageService;
import org.eclipse.osee.framework.messaging.services.RemoteServiceLookup;
import org.eclipse.osee.framework.plugin.core.util.ExportClassLoader;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.util.tracker.ServiceTracker;

/**
 * @author Andrew M. Finkbeiner
 */
class RemoteLookupServiceTracker extends ServiceTracker {
   private final MessageService messageService;
   private final IConnectionService connectionService;
   private final ExportClassLoader exportClassLoader;
   private OteJmsServiceConnector oteJmsServiceConnector;

   RemoteLookupServiceTracker(BundleContext context, MessageService messageService, IConnectionService connectionService, ExportClassLoader exportClassLoader) {
      super(context, RemoteServiceLookup.class.getName(), null);
      this.messageService = messageService;
      this.connectionService = connectionService;
      this.exportClassLoader = exportClassLoader;
   }

   @Override
   public Object addingService(ServiceReference reference) {
      RemoteServiceLookup remoteServiceLookup = (RemoteServiceLookup) context.getService(reference);
      oteJmsServiceConnector =
         new OteJmsServiceConnector(remoteServiceLookup, messageService, connectionService);
      oteJmsServiceConnector.start();
      return super.addingService(reference);
   }

   @Override
   public void close() {
      if (oteJmsServiceConnector != null) {
         oteJmsServiceConnector.stop();
         oteJmsServiceConnector = null;
      }
      super.close();
   }

   @Override
   public void removedService(ServiceReference reference, Object service) {
      if (oteJmsServiceConnector != null) {
         oteJmsServiceConnector.stop();
      }
      super.removedService(reference, service);
   }

}