code: public void handleRequest(String request) {
          if (messageListener != null) {
              log.debug("Received Http request");
              messageListener.onInboundMessage(new RawMessage(request), null);
          } else {
              if (log.isDebugEnabled()) {
                  log.debug("Received Http request:" + NEWLINE + request);
              }
          }
      }
docs: Handle request message and write request to logger.
  @param request