/**
* fetch the discovered remote service. The service will be fetched from the service providing
* host and a proxy bundle is registered with the local framework.
*
* @param service the <code>ServiceURL</code>.
* @throws RemoteOSGiException if the fetching fails.
* @see ch.ethz.iks.r_osgi.RemoteOSGiService#getProxyBundle(ch.ethz.iks.slp.ServiceURL)
* @since 0.1
* @category RemoteOSGiService
*/
private void fetchService(final RemoteServiceReference ref) throws RemoteOSGiException {
try {
ChannelEndpointImpl channel;
channel = ((RemoteServiceReferenceImpl) ref).getChannel();
channel.getProxyBundle(ref);
} catch (final UnknownHostException e) {
throw new RemoteOSGiException("Cannot resolve host " + ref.getURI(), e); // $NON-NLS-1$
} catch (final IOException ioe) {
throw new RemoteOSGiException("Proxy generation error", ioe); // $NON-NLS-1$
}
}
/**
* @throws InterruptedException
* @see
* ch.ethz.iks.r_osgi.RemoteOSGiService#getRemoteServiceBundle(ch.ethz.iks.r_osgi.RemoteServiceReference)
* @since 1.0.0.RC4
*/
public Object getRemoteServiceBundle(final RemoteServiceReference ref, final int timeout)
throws InterruptedException {
if (ref == null) {
throw new IllegalArgumentException("Remote Reference is null."); // $NON-NLS-1$
}
getChannel(ref.getURI()).getCloneBundle(ref);
if (timeout < 0) {
return null;
}
// TODO: FIXME use at least all service interfaces
final ServiceTracker tracker =
new ServiceTracker(
RemoteOSGiActivator.getActivator().getContext(), ref.getServiceInterfaces()[0], null);
tracker.open();
tracker.waitForService(0);
// TODO: FIXME compare that the service is actually the one from the
// fetched
// bundle!
return tracker.getService();
}
/**
* @param ref the <code>RemoteServiceReference</code> to the service.
* @return the service reference of the service (or service proxy) or <code>null</code> if the
* service is not (yet) present.
* @see
* ch.ethz.iks.r_osgi.RemoteOSGiService#getFetchedServiceReference(ch.ethz.iks.r_osgi.RemoteServiceReference)
* @category RemoteOSGiService
* @since 0.6
*/
private ServiceReference getFetchedServiceReference(final RemoteServiceReference ref) {
try {
final ServiceReference[] refs =
RemoteOSGiActivator.getActivator()
.getContext()
.getServiceReferences(
ref.getServiceInterfaces()[0],
"(" //$NON-NLS-1$
+ SERVICE_URI
+ "="
+ ref.getURI()
+ ")"); //$NON-NLS-1$ //$NON-NLS-2$
if (refs != null) {
return refs[0];
}
} catch (final InvalidSyntaxException doesNotHappen) {
doesNotHappen.printStackTrace();
}
return null;
}
/**
* @see
* ch.ethz.iks.r_osgi.RemoteOSGiService#ungetRemoteService(ch.ethz.iks.r_osgi.RemoteServiceReference)
* @category RemoteOSGiService
*/
public void ungetRemoteService(final RemoteServiceReference remoteServiceReference) {
((RemoteServiceReferenceImpl) remoteServiceReference)
.getChannel()
.ungetRemoteService(remoteServiceReference.getURI());
}
