Re: [ecf-dev] Using a container multiple times

[Scott Lewis <slewis@xxxxxxxxxxxxx>]

Hi Robert,

On 11/4/2010 2:35 PM, Robert Onslow wrote:
> Scott
> I have decided to go with the ECF method at the moment, because it
> gives me more control over discovery etc. and I can also like to
> retain responsibility for creating the container
>
> So on the client side, I will wait for the container connection, then
> pick up the shared object, then pick up the remote service:
>
> container = manager.getContainerFactory().createContainer("ecf.generic.client");
> container.addListener(new IContainerListener() {
>
> @Override
> public void handleEvent(IContainerEvent event) {
> 	if (event instanceof IContainerConnectedEvent)
> 	try {
> ID id = IDFactory.getDefault().createID(container.getConnectNamespace(),
> uri.toString());
> //pick up the shared object														ISharedObjectContainer soc =
> (ISharedObjectContainer) ((IAdaptable)
> container).getAdapter(ISharedObjectContainer.class);
> 														
> 													ISharedObjectManager manager = soc.getSharedObjectManager();
> EventAdmin admin = new DistributedEventAdmin(context);
> ID id1 = IDFactory.getDefault().createStringID("uk.co.xlegal.xbundle3.remote");
> Properties props = new Properties();
> props.put(EventConstants.EVENT_TOPIC, "uk_co_xlegal_xbundle3_remote");
> manager.addSharedObject(id1, (ISharedObject) admin, props);
> ((DistributedEventAdmin) admin).start();
> 					
> //now pick up the remote service									
> IRemoteServiceContainerAdapter rsc = (IRemoteServiceContainerAdapter)
> ((IAdaptable) container).getAdapter(IRemoteServiceContainerAdapter.class);
> 														IRemoteServiceReference[] refs =
> rsc.getRemoteServiceReferences(((IContainerConnectedEvent)
> event).getTargetID(), StateProvider.class.getName(), null);
> StateProvider provider = (StateProvider) rsc.getRemoteService(refs[0]);
> Map<String, Object>  state = provider.provideState();
> syncBundles(state);
> 														
> } catch (Exception e) {
> 														Log.log(Log.ERROR, e.getMessage());
> }
> }
> });
> container.connect(id, null);
>
> I'm finding that refs is null. Looking inside rsc, I see that the
> remoteRegistry array is empty.
> Have I missed a step in initialising the
> IRemoteServiceContainerAdapter on the client side?

I don't think so...I think probably the issue is that you should use 
this lookup method (note the ID[] first param, rather than ID):

IRemoteServiceReference[] refs =
rsc.getRemoteServiceReferences(new ID[] { ((IContainerConnectedEvent)
event).getTargetID() }, StateProvider.class.getName(), null);

I have other commitments right now so can't explain at the moment, but I 
suspect that this will deal with this situation.

Scott