public void start(long docId){
  reader=new Reader(serverUUID,eventBus,docId);
  readerThread=new Thread(reader);
  readerThread.start();
}

public void start ( long docId ) { reader = new Reader ( serverUUID , eventBus , docId ) ; readerThread = new Thread ( reader ) ; readerThread . start ( ) ; }
start polling for new messages in the queue .
