@Override
public void serviceChanged(ServiceEvent event) {
	if (event.getType() == ServiceEvent.REGISTERED) {
		registerRAPServlet(event.getServiceReference());
	} else if (event.getType() == ServiceEvent.UNREGISTERING) {
		unregisterRAPServlet();
	}
}

private void registerRAPServlet(ServiceReference httpServiceRef) {
	httpService = (HttpService) context.getService(httpServiceRef);

	ServiceReference launcherRef = context.getServiceReference(ApplicationLauncher.class.getName());
	launcherService = (ApplicationLauncher) context.getService(launcherRef);

	ApplicationConfiguration configuration = new ARTOScopeRAPConfig();
	reference = launcherService.launch(configuration, httpService, null, "artos", "plugins/jetty/");
}

private void unregisterRAPServlet() {
	reference.notifyAll();
	reference.stopApplication();
}