Examples of flex.messaging.client.FlexClient$EndpointQueue

flex.messaging.client.FlexClient
@exclude Helper class that stores per-endpoint outbound queue state including:
- flexClient - The FlexClient the queue is used by.
- messages - The outbound queue of messages for the endpoint.
- processor - The processor that handles adding messages to the queue as well as flushing them to the network.
- asyncPoll - The async poll to timeout or callback when messages arrive (null if the endpoint or session supports direct push).
- pushSession - A reference to a pushSession to use for direct writes to the client (null if the endpoint uses polling or handles push directly).
- flushTask - A reference to a pending flush task that will perform a delayed flush of the queue; null if no delayed flush has been scheduled.
- messageClientRefCount - A reference count of MessageClients subcribed over this endpoint. Once all MessageClients unsubscribe this queue can be shut down.
- avoidBusyPolling - Used to signal poll result generation for the queue to avoid busy polling.

     */
    public static Principal getUserPrincipal()
    {
        if (isPerClientAuthentication())
        {
            FlexClient client = getFlexClient();
            if (client != null)
                return client.getUserPrincipal();
        }
        else
        {
            FlexSession session = getFlexSession();
            if (session != null)

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            double msgVersion = endpoint.getMessagingVersion();
            if (msgVersion > 0)
                replyMessage.setHeader(CommandMessage.MESSAGING_VERSION, new Double(msgVersion));


            // Record the flex client ID
            FlexClient flexClient = FlexContext.getFlexClient();
            if (flexClient != null)
                replyMessage.setHeader(Message.FLEX_CLIENT_ID_HEADER, flexClient.getId());
        }
        else if (!serviced)
        {
            MessageException lme = new MessageException();
            // No destination with id ''{0}'' is registered with any service.

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        // Route the message and the MessageClient (subscription) to the FlexClient to
        // queue the message for delivery to the remote client.
        // Reset the thread local FlexClient and FlexSession to be specific to the client
        // we're pushing to, and then reset the context back to its original request handling state.
        FlexClient requestFlexClient = FlexContext.getFlexClient();
        FlexSession requestFlexSession = FlexContext.getFlexSession();


        FlexClient pushFlexClient = messageClient.getFlexClient();
        FlexContext.setThreadLocalFlexClient(pushFlexClient);
        FlexContext.setThreadLocalSession(null); // Null because we don't have a currently active endpoint for the push client.


        pushFlexClient.push(message, messageClient);


        // and reset thread locals.
        FlexContext.setThreadLocalFlexClient(requestFlexClient);
        FlexContext.setThreadLocalSession(requestFlexSession);
    }

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        {
            // Handle resubscribes from the same client and duplicate subscribes from different clients
            boolean subscriptionAlreadyExists = (getSubscriber(clientId) != null);
            client = getMessageClient(clientId, endpointId);


            FlexClient flexClient = FlexContext.getFlexClient();
            if (subscriptionAlreadyExists)
            {
                // Block duplicate subscriptions from multiple FlexClients if they 
                // attempt to use the same clientId.  (when this is called from a remote
                // subscription, there won't be a flex client so skip this test).
                if (flexClient != null && !flexClient.getId().equals(client.getFlexClient().getId()))
                {
                    ServiceException se = new ServiceException();
                    se.setMessage(10559, new Object[] {clientId});
                    throw se;
                }

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     */
    public static Principal getUserPrincipal()
    {        
      if (isPerClientAuthentication())
      {
        FlexClient client = getFlexClient();
        if (client != null)
          return client.getUserPrincipal();
      }
      else
      {
        FlexSession session = getFlexSession();
        if (session != null)

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     * @see flex.messaging.endpoints.AbstractEndpoint#handleChannelDisconnect(CommandMessage)
     */
    protected Message handleChannelDisconnect(CommandMessage disconnectCommand)
    {        
        HttpFlexSession session = (HttpFlexSession)FlexContext.getFlexSession();
        FlexClient flexClient = FlexContext.getFlexClient();
        
        // Shut down any subscriptions established over this channel/endpoint
        // for this specific FlexClient.
        if (flexClient.isValid())
        {
            String endpointId = getId();            
            List messageClients = flexClient.getMessageClients();
            for (Iterator iter = messageClients.iterator(); iter.hasNext();)
            {
                MessageClient messageClient = (MessageClient)iter.next();
                if (messageClient.getEndpointId().equals(endpointId))
                {

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            double msgVersion = endpoint.getMessagingVersion();
            if (msgVersion > 0)
                replyMessage.setHeader(CommandMessage.MESSAGING_VERSION, new Double(msgVersion));


            // Record the flex client ID
            FlexClient flexClient = FlexContext.getFlexClient();
            if (flexClient != null)
                replyMessage.setHeader(Message.FLEX_CLIENT_ID_HEADER, flexClient.getId());
        }
        else if (!serviced)
        {
            MessageException lme = new MessageException();
            // No destination with id ''{0}'' is registered with any service.

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        // Route the message and the MessageClient (subscription) to the FlexClient to
        // queue the message for delivery to the remote client.
        // Reset the thread local FlexClient and FlexSession to be specific to the client
        // we're pushing to, and then reset the context back to its original request handling state.
        FlexClient requestFlexClient = FlexContext.getFlexClient();
        FlexSession requestFlexSession = FlexContext.getFlexSession();
        
        FlexClient pushFlexClient = messageClient.getFlexClient();
        FlexContext.setThreadLocalFlexClient(pushFlexClient);
        FlexContext.setThreadLocalSession(null); // Null because we don't have a currently active endpoint for the push client.
                
        pushFlexClient.push(message, messageClient);
        
        // and reset thread locals.
        FlexContext.setThreadLocalFlexClient(requestFlexClient);
        FlexContext.setThreadLocalSession(requestFlexSession);
    }

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        // We don't do this validation with CLOSE_COMMAND because CLOSE_COMMAND can come in on a 
        // different session. For example, when the session expires due to timeout, the streaming client 
        // using that session sends a CLOSE_COMMAND on a new session to let the server know to clean client's 
        // corresponding server constructs. In that case, server already knows that session has expired so 
        // we can simply omit this validation. 
        FlexClient flexClient = null;
        List flexClients = FlexContext.getFlexSession().getFlexClients();            
        boolean validFlexClientId = false;
        for (Iterator iter = flexClients.iterator(); iter.hasNext();)
        {
            flexClient = (FlexClient)iter.next();
            if (flexClient.getId().equals(flexClientId) && flexClient.isValid())
            {
                validFlexClientId = true;
                break;
            }
        }

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            if (operation == CommandMessage.POLL_OPERATION && message.getClientId() == null)
            {
                verifyFlexClientSupport(command);
                
                
                FlexClient flexClient = FlexContext.getFlexClient();
                ack = handleFlexClientPollCommand(flexClient, command);                                                                                            
            }
            else if (operation == CommandMessage.DISCONNECT_OPERATION)
            {
                ack = handleChannelDisconnect(command);

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flex.messaging.endpoints.AbstractEndpoint

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