Esempio n. 1
0
 /** Removes the channel server proxy and binding for the node specified during construction. */
 public void run() {
   String channelServerKey = getChannelServerKey(nodeId);
   DataService dataService = getDataService();
   try {
     dataService.removeObject(dataService.getServiceBinding(channelServerKey));
   } catch (NameNotBoundException e) {
     // already removed
     return;
   } catch (ObjectNotFoundException e) {
   }
   dataService.removeServiceBinding(channelServerKey);
 }
 /**
  * Removes the client session server proxy and binding and also removes the protocol descriptors
  * for the node specified during construction.
  */
 public void run() {
   String sessionServerKey = getClientSessionServerKey(nodeId);
   DataService dataService = getDataService();
   try {
     dataService.removeObject(dataService.getServiceBinding(sessionServerKey));
     getProtocolDescriptorsMap().remove(nodeId);
   } catch (NameNotBoundException e) {
     // already removed
     return;
   } catch (ObjectNotFoundException e) {
   }
   dataService.removeServiceBinding(sessionServerKey);
 }
Esempio n. 3
0
  /**
   * Invokes the {@code disconnected} callback on this session's {@code ClientSessionListener} (if
   * present and {@code notify} is {@code true}), removes the listener and its binding (if present),
   * and then removes this session and its bindings from the specified {@code dataService}. If the
   * bindings have already been removed from the {@code dataService} this method takes no action.
   * This method should only be called within a transaction.
   *
   * @param dataService a data service
   * @param graceful {@code true} if disconnection is graceful, and {@code false} otherwise
   * @param notify {@code true} if the {@code disconnected} callback should be invoked
   * @throws TransactionException if there is a problem with the current transaction
   */
  void notifyListenerAndRemoveSession(
      final DataService dataService, final boolean graceful, boolean notify) {
    String sessionKey = getSessionKey();
    String sessionNodeKey = getSessionNodeKey();
    String listenerKey = getListenerKey();
    String eventQueueKey = getEventQueueKey();

    /*
     * Get ClientSessionListener, and remove its binding and
     * wrapper if applicable.  The listener may not be bound
     * in the data service if: the AppListener.loggedIn callback
     * either threw a non-retryable exception or returned a
     * null listener, or the application removed the
     * ClientSessionListener object from the data service.
     */
    ClientSessionListener listener = null;
    try {
      ManagedObject obj = dataService.getServiceBinding(listenerKey);
      dataService.removeServiceBinding(listenerKey);
      if (obj instanceof ListenerWrapper) {
        dataService.removeObject(obj);
        listener = ((ListenerWrapper) obj).get();
      } else {
        listener = (ClientSessionListener) obj;
      }

    } catch (NameNotBoundException e) {
      logger.logThrow(Level.FINE, e, "removing ClientSessionListener for session:{0} throws", this);
    }

    /*
     * Remove event queue and associated binding.
     */
    try {
      ManagedObject eventQueue = dataService.getServiceBinding(eventQueueKey);
      dataService.removeServiceBinding(eventQueueKey);
      dataService.removeObject(eventQueue);
    } catch (NameNotBoundException e) {
      logger.logThrow(Level.FINE, e, "removing EventQueue for session:{0} throws", this);
    }

    /*
     * Invoke listener's 'disconnected' callback if 'notify'
     * is true and a listener exists for this client session.  If the
     * 'disconnected' callback throws a non-retryable exception,
     * schedule a task to remove this session and its associated
     * bindings without invoking the listener, and rethrow the
     * exception so that the currently executing transaction aborts.
     */
    if (notify && listener != null) {
      try {
        listener.disconnected(graceful);
      } catch (RuntimeException e) {
        if (!isRetryableException(e)) {
          logger.logThrow(
              Level.WARNING,
              e,
              "invoking disconnected callback on listener:{0} " + " for session:{1} throws",
              listener,
              this);
          sessionService.scheduleTask(
              new AbstractKernelRunnable() {
                public void run() {
                  ClientSessionImpl sessionImpl = ClientSessionImpl.getSession(dataService, id);
                  sessionImpl.notifyListenerAndRemoveSession(dataService, graceful, false);
                }
              },
              identity);
        }
        throw e;
      }
    }

    /*
     * Remove this session's state and bindings.
     */
    try {
      dataService.removeServiceBinding(sessionKey);
      dataService.removeServiceBinding(sessionNodeKey);
      dataService.removeObject(this);
    } catch (NameNotBoundException e) {
      logger.logThrow(Level.WARNING, e, "session binding already removed:{0}", sessionKey);
    }

    /*
     * Remove this session's wrapper object, if it still exists.
     */
    try {
      dataService.removeObject(wrappedSessionRef.get());
    } catch (ObjectNotFoundException e) {
      // already removed
    }
  }