/*******************************************************************************
* Copyright (c) 2013 Composent, Inc. 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: Scott Lewis - initial API and implementation
******************************************************************************/
package com.mycorp.examples.timeservice.consumer;
import org.osgi.framework.BundleActivator;
import org.osgi.framework.BundleContext;
import org.osgi.framework.ServiceReference;
import org.osgi.service.remoteserviceadmin.RemoteServiceAdminEvent;
import org.osgi.service.remoteserviceadmin.RemoteServiceAdminListener;
import org.osgi.util.tracker.ServiceTracker;
import org.osgi.util.tracker.ServiceTrackerCustomizer;
import com.mycorp.examples.timeservice.ITimeService;
public class Activator implements BundleActivator, ServiceTrackerCustomizer<ITimeService,ITimeService> {
private BundleContext context;
private ServiceTracker<ITimeService,ITimeService> timeServiceTracker;
public void start(BundleContext context) throws Exception {
this.context = context;
// If the verboseRemoteServiceAdmin system property is set
// then register debug listener
if (Boolean.getBoolean("verboseRemoteServiceAdmin"))
registerDebugListener(context);
// Create and open ITimeService tracker
this.timeServiceTracker = new ServiceTracker<ITimeService,ITimeService>(this.context,ITimeService.class,this);
this.timeServiceTracker.open();
}
public void stop(BundleContext context) throws Exception {
if (timeServiceTracker != null) {
timeServiceTracker.close();
timeServiceTracker = null;
}
}
/**
* NOTE: The method will be called when the ITimeService is discovered.
*/
public ITimeService addingService(
ServiceReference<ITimeService> reference) {
// XXX Here is where the ITimeService is received, when discovered.
System.out.println("ITimeService discovered!");
System.out.println("Service Reference="+reference);
// Get the time service proxy
ITimeService timeService = this.context.getService(reference);
System.out.println("Calling timeService="+timeService);
// Call the service!
Long time = timeService.getCurrentTime();
// Print out the result
System.out.println("Call Done. Current time given by ITimeService.getCurrentTime() is: "+time);
return timeService;
}
public void modifiedService(ServiceReference<ITimeService> reference,
ITimeService service) {
// do nothing
}
public void removedService(ServiceReference<ITimeService> reference,
ITimeService service) {
// do nothing
}
// Register a RemoteServiceAdminListener so we can report to sdtout
// when a remote service has actually been successfully exported by
// the RSA implementation
private void registerDebugListener(BundleContext context) {
RemoteServiceAdminListener rsaListener = new RemoteServiceAdminListener() {
public void remoteAdminEvent(RemoteServiceAdminEvent event) {
switch (event.getType()) {
case RemoteServiceAdminEvent.IMPORT_REGISTRATION:
System.out
.println("Service Imported by RemoteServiceAdmin. EndpointDescription Properties="
+ event.getImportReference().getImportedEndpoint().getProperties());
}
}
};
// Register as service, and RemoteServiceAdmin will callback
context.registerService(RemoteServiceAdminListener.class.getName(),
rsaListener, null);
}
}