Can BlazeDS Do This?

I seem to be having problems fitting the needs of my application to the capabilities of BlazeDS. Namely, my application needs to be able to do the following:
1) Know who is connected to a particular destination. For example, certain actions need to be performed only when there are a certain number of subscribers (or even when certain subscribers in particular are subscribed). It seems that this is not trivial in BlazeDS. Anyone have any advice here?
2) Send messages to client's when they first connect. I can create a custom MessageClientListener, but when the messageClientCreated method is invoked, I am not yet able to send a message to the new MessageClient. Is this possible? I have heard about the unsupported method routeMessageToMessageService, but it is pretty messy and has no documentation. Is there a way to know when a client is first able to receive messages through the standard routeMessageToService?
3) Point to point messaging (queue messaging). I have several cases where I need to push data to a single client only. I can create a single destination for each client (or use subtopics) but I still run into problems arising from points 1 and 2.
Can BlazeDS do these things cleanly? Any help on these points would be much appreciated.
Thanks,
Gordon

Mete Atamel wrote:
MessageDestination destination = (MessageDestination) getDestination(message);
          SubscriptionManager subscriptionManager = destination.getSubscriptionManager();
          Set subscriberIds = subscriptionManager.getSubscriberIds();
Hi,
what is "message" ?
Do you like to post a example for getting all subscribed users please?
I started with the following biut with less success yet:
[JAVA]
public List getSubscribedUsers() {
   String serviceId = "message-service";
   MessageBroker broker = MessageBroker.getMessageBroker(null);
   MessageService service = (MessageService) broker.getService(serviceId);
   service.getSubscriberIds(message,true);
   return users;
[JAVA]
Have a nice day!
dl

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