/**
  * Handles the message
  *
  * @param MultipartMessage $message
  * @param string $identity
  */
 public function handleMessage(MultipartMessage $message, $identity)
 {
     //  Return reply to client if it's not a control message
     if ($message->parts() == 1) {
         if ($message->address() == "READY") {
             $this->queue->deleteWorker($identity);
             $this->queue->appendWorker($identity, $this->config->getInterval(), $this->config->getLiveness());
             $this->logger->info("Worker connected!", array($identity));
         } elseif ($message->address() == 'HEARTBEAT') {
             $this->logger->info("Got heartbeat from worker!", array($identity));
             $this->queue->refreshWorker($identity, $this->config->getInterval(), $this->config->getLiveness());
         } else {
             $this->logger->error("Invalid message from worker!", array($identity, $message->__toString()));
         }
     } else {
         $message->setSocket($this->clientChannel)->send();
         $this->queue->appendWorker($identity, $this->config->getInterval(), $this->config->getLiveness());
     }
 }