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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.framework.messaging.services.internal;
import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.logging.Level;
import org.eclipse.osee.framework.core.exception.OseeCoreException;
import org.eclipse.osee.framework.logging.OseeLog;
import org.eclipse.osee.framework.messaging.MessageService;
import org.eclipse.osee.framework.messaging.internal.Activator;
import org.eclipse.osee.framework.messaging.services.RemoteServiceLookup;
import org.eclipse.osee.framework.messaging.services.RemoteServiceRegistrar;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.framework.ServiceRegistration;
import org.osgi.util.tracker.ServiceTracker;
/**
* @author Andrew M. Finkbeiner
*
*/
public class ServiceLookupAndRegistrarLifeCycle extends ServiceTracker {
private RemoteServiceRegistrar registrar;
private ServiceRegistration lookupRegistration;
private ServiceRegistration registrarRegistration;
private ClassLoader contextClassLoader;
private RemoteServiceLookupImpl lookup;
/**
* @param context
* @param filter
* @param customizer
*/
public ServiceLookupAndRegistrarLifeCycle(BundleContext context, ClassLoader contextClassLoader) {
super(context, MessageService.class.getName(), null);
this.contextClassLoader = contextClassLoader;
}
@Override
public Object addingService(ServiceReference reference) {
OseeLog.log(Activator.class, Level.INFO, String.format("Found %s service.", MessageService.class.getName()));
OseeLog.log(Activator.class, Level.FINEST, String.format("GOING TO GET THE REF"));
MessageService messageService = (MessageService) context.getService(reference);
OseeLog.log(Activator.class, Level.FINEST, String.format("got the service ref"));
ScheduledExecutorService executor = Executors.newScheduledThreadPool(2);
OseeLog.log(Activator.class, Level.FINEST, String.format("got exec"));
try{
OseeLog.log(Activator.class, Level.FINEST, String.format("set context classloader"));
Thread.currentThread().setContextClassLoader(contextClassLoader);
OseeLog.log(Activator.class, Level.FINEST, String.format("done set context classloader"));
registrar = new RemoteServiceRegistrarImpl(messageService.getDefault(), executor);
OseeLog.log(Activator.class, Level.FINEST, String.format("Getting ready to start %s.", RemoteServiceRegistrarImpl.class.getName()));
registrar.start();
OseeLog.log(Activator.class, Level.FINEST, String.format("started %s.", RemoteServiceRegistrarImpl.class.getName()));
lookup = new RemoteServiceLookupImpl(messageService.getDefault(), executor);
OseeLog.log(Activator.class, Level.FINEST, String.format("Getting ready to start %s.", RemoteServiceLookupImpl.class.getName()));
lookup.start();
OseeLog.log(Activator.class, Level.FINEST, String.format("started %s.", RemoteServiceLookupImpl.class.getName()));
lookupRegistration = context.registerService(RemoteServiceLookup.class.getName(), lookup, null);
OseeLog.log(Activator.class, Level.INFO, String.format("Registered %s.", RemoteServiceLookup.class.getName()));
registrarRegistration = context.registerService(RemoteServiceRegistrar.class.getName(), registrar, null);
OseeLog.log(Activator.class, Level.INFO, String.format("Registered %s.", RemoteServiceRegistrar.class.getName()));
} catch (OseeCoreException ex){
OseeLog.log(ServiceLookupAndRegistrarLifeCycle.class, Level.SEVERE, ex);
}
return super.addingService(reference);
}
@Override
public void removedService(ServiceReference reference, Object service) {
commonShutdown();
super.removedService(reference, service);
}
@Override
public void close() {
commonShutdown();
super.close();
}
private void commonShutdown(){
if(lookupRegistration != null){
lookupRegistration.unregister();
lookupRegistration = null;
lookup.stop();
}
if(registrarRegistration != null){
registrarRegistration.unregister();
registrarRegistration = null;
registrar.stop();
}
}
}
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