Exemplo n.º 1
0
  protected void directSend(
      ClientSession clientsession,
      String topic,
      AbstractMessage.QOSType qos,
      ByteBuffer message,
      boolean retained,
      Integer messageID) {
    String clientId = clientsession.clientID;
    LOG.debug(
        "directSend invoked clientId <{}> on topic <{}> QoS {} retained {} messageID {}",
        clientId,
        topic,
        qos,
        retained,
        messageID);
    PublishMessage pubMessage = new PublishMessage();
    pubMessage.setRetainFlag(retained);
    pubMessage.setTopicName(topic);
    pubMessage.setQos(qos);
    pubMessage.setPayload(message);

    LOG.info("send publish message to <{}> on topic <{}>", clientId, topic);
    if (LOG.isDebugEnabled()) {
      LOG.debug("content <{}>", DebugUtils.payload2Str(message));
    }
    // set the PacketIdentifier only for QoS > 0
    if (pubMessage.getQos() != AbstractMessage.QOSType.MOST_ONE) {
      pubMessage.setMessageID(messageID);
    } else {
      if (messageID != null) {
        throw new RuntimeException(
            "Internal bad error, trying to forwardPublish a QoS 0 message with PacketIdentifier: "
                + messageID);
      }
    }

    if (m_clientIDs == null) {
      throw new RuntimeException(
          "Internal bad error, found m_clientIDs to null while it should be initialized, somewhere it's overwritten!!");
    }
    LOG.debug("clientIDs are {}", m_clientIDs);
    if (m_clientIDs.get(clientId) == null) {
      // TODO while we were publishing to the target client, that client disconnected,
      // could happen is not an error HANDLE IT
      throw new RuntimeException(
          String.format(
              "Can't find a ConnectionDescriptor for client <%s> in cache <%s>",
              clientId, m_clientIDs));
    }
    ServerChannel session = m_clientIDs.get(clientId).session;
    LOG.debug("Session for clientId {} is {}", clientId, session);

    String user = (String) session.getAttribute(NettyChannel.ATTR_KEY_USERNAME);
    if (!m_authorizator.canRead(topic, user, clientId)) {
      LOG.debug("topic {} doesn't have read credentials", topic);
      return;
    }
    session.write(pubMessage);
  }