Exemplo n.º 1
0
  protected void createUdpReceiver(UdpReceiverFactory factory, AsyncHttpContext asyncHttpContext) {
    OutputStream os = null;
    try {
      Message connectMessage = asyncHttpContext.getConnectMessage();

      if (udpReceiver == null || udpReceiver.isClosed())
        udpReceiver = factory.newReceiver(this, asyncHttpContext.getRequest(), connectMessage);

      AsyncMessage reply = udpReceiver.acknowledge(connectMessage);

      HttpServletRequest request = asyncHttpContext.getRequest();
      HttpServletResponse response = asyncHttpContext.getResponse();

      GraniteContext context =
          HttpGraniteContext.createThreadIntance(
              gravity.getGraniteConfig(), gravity.getServicesConfig(), null, request, response);
      ((AMFContextImpl) context.getAMFContext())
          .setCurrentAmf3Message(asyncHttpContext.getConnectMessage());

      GravityServletUtil.serialize(
          gravity,
          response,
          new AsyncMessage[] {reply},
          ContentType.forMimeType(request.getContentType()));
    } catch (ServletException e) {
      log.error(e, "Could not send UDP connect acknowledgement to channel: %s", this);
    } catch (IOException e) {
      log.error(e, "Could not send UDP connect acknowledgement to channel: %s", this);
    } finally {
      try {
        GraniteContext.release();
      } catch (Exception e) {
        // should never happen...
      }

      // Close output stream.
      try {
        if (os != null) {
          try {
            os.close();
          } catch (IOException e) {
            log.warn(e, "Could not close output stream (ignored)");
          }
        }
      } finally {
        releaseAsyncHttpContext(asyncHttpContext);
      }
    }
  }
Exemplo n.º 2
0
 public void releaseThread() {
   GraniteContext.release();
 }
Exemplo n.º 3
0
  public boolean runReceived(AsyncHttpContext asyncHttpContext) {

    GravityInternal gravity = getGravity();

    if (asyncHttpContext != null && gravity.hasUdpReceiverFactory()) {
      UdpReceiverFactory factory = gravity.getUdpReceiverFactory();

      if (factory.isUdpConnectRequest(asyncHttpContext.getConnectMessage())) {
        createUdpReceiver(factory, asyncHttpContext);
        return true;
      }

      if (udpReceiver != null) {
        if (!udpReceiver.isClosed()) udpReceiver.close(false);
        udpReceiver = null;
      }
    }

    boolean httpAsParam = (asyncHttpContext != null);
    LinkedList<AsyncMessage> messages = null;
    OutputStream os = null;

    try {
      receivedQueueLock.lock();
      try {
        // Do we have any pending messages?
        if (receivedQueue.isEmpty()) return false;

        // Do we have a valid http context?
        if (asyncHttpContext == null) {
          asyncHttpContext = acquireAsyncHttpContext();
          if (asyncHttpContext == null) return false;
        }

        // Both conditions are ok, get all pending messages.
        messages = receivedQueue;
        receivedQueue = new LinkedList<AsyncMessage>();
      } finally {
        receivedQueueLock.unlock();
      }

      HttpServletRequest request = asyncHttpContext.getRequest();
      HttpServletResponse response = asyncHttpContext.getResponse();

      // Set response messages correlation ids to connect request message id.
      String correlationId = asyncHttpContext.getConnectMessage().getMessageId();
      AsyncMessage[] messagesArray = new AsyncMessage[messages.size()];
      int i = 0;
      for (AsyncMessage message : messages) {
        message.setCorrelationId(correlationId);
        messagesArray[i++] = message;
      }

      // Setup serialization context (thread local)
      GraniteContext context =
          HttpGraniteContext.createThreadIntance(
              gravity.getGraniteConfig(), gravity.getServicesConfig(), null, request, response);
      ((AMFContextImpl) context.getAMFContext())
          .setCurrentAmf3Message(asyncHttpContext.getConnectMessage());

      // Write messages to response output stream.
      GravityServletUtil.serialize(
          gravity, response, messagesArray, ContentType.forMimeType(request.getContentType()));

      return true; // Messages were delivered, http context isn't valid anymore.
    } catch (ServletException e) {
      log.error(e, "Configuration error for channel: %s", getId());

      return true;
    } catch (IOException e) {
      log.warn(e, "Could not send messages to channel: %s (retrying later)", getId());

      GravityConfig gravityConfig = getGravity().getGravityConfig();
      if (gravityConfig.isRetryOnError()) {
        receivedQueueLock.lock();
        try {
          if (receivedQueue.size() + messages.size()
              > gravityConfig.getMaxMessagesQueuedPerChannel()) {
            log.warn(
                "Channel %s has reached its maximum queue capacity %s (throwing %s messages)",
                getId(), gravityConfig.getMaxMessagesQueuedPerChannel(), messages.size());
          } else receivedQueue.addAll(0, messages);
        } finally {
          receivedQueueLock.unlock();
        }
      }

      return true; // Messages weren't delivered, but http context isn't valid anymore.
    } finally {
      // Cleanup serialization context (thread local)
      try {
        GraniteContext.release();
      } catch (Exception e) {
        // should never happen...
      }

      // Close output stream.
      try {
        if (os != null) {
          try {
            os.close();
          } catch (IOException e) {
            log.warn(e, "Could not close output stream (ignored)");
          }
        }
      } finally {
        // Cleanup http context (only if this method wasn't explicitly called with a non null
        // AsyncHttpContext from the servlet).
        if (!httpAsParam) releaseAsyncHttpContext(asyncHttpContext);
      }
    }
  }
Exemplo n.º 4
0
  @After
  public void tearDown() throws Exception {
    interceptor.after(requestMessage, responseMessage);

    GraniteContext.release();
  }
Exemplo n.º 5
0
  public boolean runReceived(AsyncHttpContext asyncHttpContext) {

    boolean httpAsParam = (asyncHttpContext != null);
    LinkedList<AsyncMessage> messages = null;
    OutputStream os = null;

    try {
      receivedQueueLock.lock();
      try {
        // Do we have any pending messages?
        if (receivedQueue.isEmpty()) return false;

        // Do we have a valid http context?
        if (asyncHttpContext == null) {
          asyncHttpContext = acquireAsyncHttpContext();
          if (asyncHttpContext == null) return false;
        }

        // Both conditions are ok, get all pending messages.
        messages = receivedQueue;
        receivedQueue = new LinkedList<AsyncMessage>();
      } finally {
        receivedQueueLock.unlock();
      }

      HttpServletRequest request = asyncHttpContext.getRequest();
      HttpServletResponse response = asyncHttpContext.getResponse();

      // Set response messages correlation ids to connect request message id.
      String correlationId = asyncHttpContext.getConnectMessage().getMessageId();
      AsyncMessage[] messagesArray = new AsyncMessage[messages.size()];
      int i = 0;
      for (AsyncMessage message : messages) {
        message.setCorrelationId(correlationId);
        messagesArray[i++] = message;
      }

      // Setup serialization context (thread local)
      Gravity gravity = getGravity();
      GraniteContext context =
          HttpGraniteContext.createThreadIntance(
              gravity.getGraniteConfig(), gravity.getServicesConfig(), null, request, response);
      ((AMFContextImpl) context.getAMFContext())
          .setCurrentAmf3Message(asyncHttpContext.getConnectMessage());

      // Write messages to response output stream.

      response.setStatus(HttpServletResponse.SC_OK);
      response.setContentType(AMF0Message.CONTENT_TYPE);
      response.setDateHeader("Expire", 0L);
      response.setHeader("Cache-Control", "no-store");

      os = response.getOutputStream();
      ObjectOutput amf3Serializer = context.getGraniteConfig().newAMF3Serializer(os);

      log.debug("<< [MESSAGES for channel=%s] %s", this, messagesArray);

      amf3Serializer.writeObject(messagesArray);

      os.flush();
      response.flushBuffer();

      return true; // Messages were delivered, http context isn't valid anymore.
    } catch (IOException e) {
      log.warn(e, "Could not send messages to channel: %s (retrying later)", this);

      GravityConfig gravityConfig = getGravity().getGravityConfig();
      if (messages != null && gravityConfig.isRetryOnError()) {
        receivedQueueLock.lock();
        try {
          if (receivedQueue.size() + messages.size()
              > gravityConfig.getMaxMessagesQueuedPerChannel()) {
            log.warn(
                "Channel %s has reached its maximum queue capacity %s (throwing %s messages)",
                this, gravityConfig.getMaxMessagesQueuedPerChannel(), messages.size());
          } else receivedQueue.addAll(0, messages);
        } finally {
          receivedQueueLock.unlock();
        }
      }

      return true; // Messages weren't delivered, but http context isn't valid anymore.
    } finally {

      // Cleanup serialization context (thread local)
      try {
        GraniteContext.release();
      } catch (Exception e) {
        // should never happen...
      }

      // Close output stream.
      try {
        if (os != null) {
          try {
            os.close();
          } catch (IOException e) {
            log.warn(e, "Could not close output stream (ignored)");
          }
        }
      } finally {
        // Cleanup http context (only if this method wasn't explicitly called with a non null
        // AsyncHttpContext from the servlet).
        if (!httpAsParam) releaseAsyncHttpContext(asyncHttpContext);
      }
    }
  }