Package org.jboss.errai.bus.client.api

Examples of org.jboss.errai.bus.client.api.QueueSession

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    subscribe(BuiltInServices.ServerBus.name(), new MessageCallback() {
      @Override
      @SuppressWarnings({"unchecked", "SynchronizationOnLocalVariableOrMethodParameter"})
      public void callback(Message message) {
        try {
          QueueSession session = getSession(message);
          MessageQueueImpl queue = (MessageQueueImpl) messageQueues.get(session);

          switch (BusCommands.valueOf(message.getCommandType())) {
            case Heartbeat:
              if (queue != null) {
                queue.heartBeat();
              }
              break;

            case RemoteSubscribe:
              if (queue == null) return;

              if (message.hasPart(MessageParts.SubjectsList)) {
                for (String subject : (List<String>) message.get(List.class, MessageParts.SubjectsList)) {
                  remoteSubscribe(session, queue, subject);
                }
              }
              else {
                remoteSubscribe(session, messageQueues.get(session),
                        message.get(String.class, MessageParts.Subject));
              }

              break;

            case RemoteUnsubscribe:
              if (queue == null) return;

              remoteUnsubscribe(session, queue,
                      message.get(String.class, MessageParts.Subject));
              break;

            case FinishStateSync:
              if (queue == null) return;
              queue.finishInit();

              drainDeferredDeliveryQueue(queue);
              break;

            case Disconnect:
              if (queue == null) return;

              synchronized (messageQueues) {
                queue = (MessageQueueImpl) messageQueues.get(session);
                queue.stopQueue();
                closeQueue(queue);
                session.endSession();
              }

              break;
            case Resend:
              if (queue == null) return;

            case ConnectToQueue: {
              List<Message> deferred = null;
              synchronized (messageQueues) {
                if (messageQueues.containsKey(session)) {
                  MessageQueue q = messageQueues.get(session);
                  synchronized (q) {
                    if (deferredQueue.containsKey(q)) {
                      deferred = deferredQueue.remove(q);
                    }
                  }

                  messageQueues.get(session).stopQueue();
                }

                addQueue(session, queue = new MessageQueueImpl(transmissionbuffer, session));

                if (deferred != null) {
                  deferredQueue.put(queue, deferred);
                }

                remoteSubscribe(session, queue, BuiltInServices.ClientBus.name());
              }

              if (isMonitor()) {
                busMonitor.notifyQueueAttached(session.getSessionId(), queue);
              }

              List<String> subjects = new LinkedList<String>();
              for (String service : subscriptions.keySet()) {
                if (service.startsWith("local:")) {
                }
                else if (!remoteSubscriptions.containsKey(service)) {
                  subjects.add(service);
                }
              }

              createConversation(message)
                      .toSubject(BuiltInServices.ClientBus.name())
                      .command(BusCommands.RemoteSubscribe)
                      .with(MessageParts.SubjectsList, subjects)
                      .with(MessageParts.PriorityProcessing, "1")
                      .noErrorHandling().sendNowWith(ServerMessageBusImpl.this, false);

              CommandMessage msg = ConversationMessage.create(message);
              msg.toSubject(BuiltInServices.ClientBus.name())
                      .command(BusCommands.CapabilitiesNotice);

              StringBuilder capabilitiesBuffer = new StringBuilder();

              boolean first;
              if (ErraiServiceConfigurator.LONG_POLLING) {
                capabilitiesBuffer.append(Capabilities.LongPollAvailable.name());
                first = false;
              }
              else {
                capabilitiesBuffer.append(Capabilities.NoLongPollAvailable.name());
                first = false;
                msg.set(MessageParts.PollFrequency, ErraiServiceConfigurator.HOSTED_MODE_TESTING ? 50 : 250);
              }

              if (webSocketServer) {
                if (!first) {
                  capabilitiesBuffer.append(',');
                }
                capabilitiesBuffer.append(Capabilities.WebSockets.name());
                /**
                 * Advertise where the client can find a websocket.
                 */
                HttpServletRequest request = message.getResource(HttpServletRequest.class, HttpServletRequest.class.getName());
                msg.set(MessageParts.WebSocketURL, "ws://" + request.getLocalAddr()
                        + ":" + webSocketPort + webSocketPath);

                String connectionToken = SecureHashUtil.nextSecureHash("SHA-256", session.getSessionId());
                session.setAttribute(MessageParts.WebSocketToken.name(), connectionToken);
                msg.set(MessageParts.WebSocketToken, connectionToken);
              }

              msg.set(MessageParts.CapabilitiesFlags, capabilitiesBuffer.toString());

              send(msg, false);

              createConversation(message)
                      .toSubject(BuiltInServices.ClientBus.name())
                      .command(BusCommands.FinishStateSync)
                      .with(MessageParts.ConnectionSessionKey, queue.getSession().getSessionId())
                      .noErrorHandling().sendNowWith(ServerMessageBusImpl.this, false);

              break;
            }

            case WebsocketChannelVerify:
              if (session.hasAttribute(MessageParts.WebSocketToken.name())
                      && message.hasPart(MessageParts.WebSocketToken)) {

                if (message.get(String.class, MessageParts.WebSocketToken)
                        .equals(session.getAttribute(String.class, MessageParts.WebSocketToken.name()))) {

                  session.setAttribute(WebSocketServerHandler.SESSION_ATTR_WS_STATUS,
                          WebSocketServerHandler.WEBSOCKET_ACTIVE);

                  createConversation(message)
                          .toSubject(BuiltInServices.ClientBus.name())
                          .command(BusCommands.WebsocketChannelOpen)
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    subscribe(BuiltInServices.ServerBus.name(), new MessageCallback() {
      @Override
      @SuppressWarnings({"unchecked", "SynchronizationOnLocalVariableOrMethodParameter"})
      public void callback(final Message message) {
        try {
          final QueueSession session = getSession(message);
          MessageQueueImpl queue = (MessageQueueImpl) messageQueues.get(session);

          switch (BusCommands.valueOf(message.getCommandType())) {
            case Heartbeat:
              if (queue != null) {
                queue.heartBeat();
              }
              break;

            case RemoteSubscribe:
              if (queue == null) return;

              if (message.hasPart(MessageParts.SubjectsList)) {
                for (String subject : (List<String>) message.get(List.class, MessageParts.SubjectsList)) {
                  remoteSubscribe(session, queue, subject);
                }
              }
              else {
                remoteSubscribe(session, messageQueues.get(session),
                        message.get(String.class, MessageParts.Subject));
              }

              break;

            case RemoteUnsubscribe:
              if (queue == null) return;

              remoteUnsubscribe(session, queue,
                      message.get(String.class, MessageParts.Subject));
              break;

            case FinishStateSync:
              if (queue == null) return;
              queue.finishInit();

              drainDeferredDeliveryQueue(queue);
              break;

            case Disconnect:
              if (queue == null) return;

              synchronized (messageQueues) {
                queue.stopQueue();
                closeQueue(queue);
                session.endSession();
              }

              break;
            case Resend:
              if (queue == null) return;

            case ConnectToQueue: {
              List<Message> deferred = null;
              synchronized (messageQueues) {
                if (messageQueues.containsKey(session)) {
                  MessageQueue q = messageQueues.get(session);
                  synchronized (q) {
                    if (deferredQueue.containsKey(q)) {
                      deferred = deferredQueue.remove(q);
                    }
                  }

                  messageQueues.get(session).stopQueue();
                }

                queue = new MessageQueueImpl(transmissionbuffer, session);

                addQueue(session, queue);

                if (deferred != null) {
                  deferredQueue.put(queue, deferred);
                }

                remoteSubscribe(session, queue, BuiltInServices.ClientBus.name());
              }

              if (isMonitor()) {
                busMonitor.notifyQueueAttached(session.getSessionId(), queue);
              }

              createConversation(message)
                      .toSubject(BuiltInServices.ClientBus.name())
                      .command(BusCommands.RemoteSubscribe)
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    messageQueues.put(newSession, getQueue(oldSession));
  }

  @Override
  public MessageQueue getQueueBySession(final String sessionId) {
    final QueueSession session = sessionLookup.get(sessionId);
    if (session == null) {
      throw new QueueUnavailableException("no queue for sessionId=" + sessionId);
    }
    return getQueue(session);
  }
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    SessionsContainer sc = (SessionsContainer) externSessRef.getAttribute(HTTP_SESS);
    if (sc == null) {
      externSessRef.setAttribute(HTTP_SESS, sc = new SessionsContainer());
    }

    QueueSession qs = sc.getSession(remoteQueueID);
    if (qs == null) {
      qs = sc.createSession(externSessRef.getId(), remoteQueueID);
      qs.setAttribute(HttpSession.class.getName(), externSessRef);
    }

    return qs;
  }
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   * @throws ServletException - thrown if a servlet error occurs
   */
  @Override
  public void event(final HttpEvent event) throws IOException, ServletException {
    final HttpServletRequest request = event.getHttpServletRequest();
    final QueueSession session = sessionProvider.getSession(request.getSession(), request.getHeader("RemoteQueueID"));

    MessageQueue queue;
    switch (event.getType()) {
      case BEGIN:
        boolean post = "POST".equals(request.getMethod());
        queue = getQueue(session, !post);
        if (queue == null) {
          switch (getConnectionPhase(request)) {
            case CONNECTING:
            case DISCONNECTING:
              return;
          }

          sendDisconnectWithReason(event.getHttpServletResponse().getOutputStream(),
              "There is no queue associated with this session.");
        }

        synchronized (activeEvents) {

          if (post) {
            // do not pause incoming messages.
            break;
          }
          else if (queue.messagesWaiting()) {
            transmitMessages(event.getHttpServletResponse(), queue);
            event.close();
            break;
          }

          if (!queueToSession.containsKey(queue)) {
            queueToSession.put(queue, session);
          }


          Set<HttpEvent> events = activeEvents.get(session);
          if (events == null) {
            activeEvents.put(session, events = new LinkedHashSet<HttpEvent>());
          }

          if (events.contains(event)) {
            event.close();
          }
          else {
            events.add(event);
          }
        }
        break;


      case END:
        if ((queue = getQueue(session, false)) != null) {
          queue.heartBeat();
        }

        synchronized (activeEvents) {
          Set<HttpEvent> evt = activeEvents.get(session);
          if (evt != null) {
            evt.remove(event);
          }
        }

        event.close();
        break;

      case EOF:
        event.close();
        break;

      case TIMEOUT:
      case ERROR:
        queue = getQueue(session, false);

        synchronized (activeEvents) {
          Set<HttpEvent> evt = activeEvents.get(session);
          if (evt != null) {
            evt.remove(event);
          }
        }

        if (event.getType() == HttpEvent.EventType.TIMEOUT) {
          if (queue != null) queue.heartBeat();
        }
        else {
          if (queue != null) {
            queueToSession.remove(queue);
            service.getBus().closeQueue(session.getSessionId());
            //   session.invalidate();
            activeEvents.remove(session);
          }
          log.error("An Error Occured" + event.getType());
        }
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          resumed = true;
          queue.setActivationCallback(null);

          try {
            Set<HttpEvent> activeSessEvents;
            QueueSession session;
            session = queueToSession.get(queue);
            if (session == null) {
              log.error("Could not resume: No session.");
              return;
            }
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   */
  @Override
  protected void doPost(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
          throws ServletException, IOException {

    final QueueSession session = sessionProvider.getSession(httpServletRequest.getSession(),
            httpServletRequest.getHeader(ClientMessageBus.REMOTE_QUEUE_ID_HEADER));

    try {
      service.store(createCommandMessage(session, httpServletRequest));
    }
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     */
    private final Map<String, Object> sharedAttributes = new HashMap<String, Object>();
    private final Map<String, QueueSession> queueSessions = new HashMap<String, QueueSession>();

    public QueueSession createSession(final String httpSessionId, final String remoteQueueId) {
      final QueueSession qs = new HttpSessionWrapper(this, httpSessionId, remoteQueueId);
      queueSessions.put(remoteQueueId, qs);
      return qs;
    }
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   * Reads resources from the provided {@link Message} and stores them in {@link ThreadLocal}s.
   *
   * @param message
   */
  public static void set(Message message) {
    QueueSession queueSession = message.getResource(QueueSession.class, "Session");
    if (queueSession != null) {
      HttpSession session =
            queueSession.getAttribute(HttpSession.class, HttpSession.class.getName());

      if (session != null) {
        threadLocalHttpSession.set(session);
      }
    }
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   * @throws ServletException - if the request for the POST could not be handled
   */
  @Override
  protected void doPost(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse)
          throws ServletException, IOException {
    final QueueSession session = sessionProvider.getSession(httpServletRequest.getSession(),
            httpServletRequest.getHeader(ClientMessageBus.REMOTE_QUEUE_ID_HEADER));

    service.store(createCommandMessage(session, httpServletRequest));

    pollForMessages(session, httpServletRequest, httpServletResponse, false);
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Related Classes of org.jboss.errai.bus.client.api.QueueSession

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  • org.jboss.errai.bus.server.HttpSessionProvider$SessionsContainer
  • org.jboss.errai.bus.server.io.websockets.WebSocketServerHandler
  • org.jboss.errai.bus.server.security.auth.JAASAdapter
  • org.jboss.errai.bus.server.ServerMessageBusImpl
  • org.jboss.errai.bus.server.ServerMessageBusImpl$ServerBusMessageCallback
  • org.jboss.errai.bus.server.servlet.DefaultBlockingServlet
  • org.jboss.errai.bus.server.servlet.JBossAS7WebSocketServlet
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