code: public void prepareServer() {
          try {
              server = new Server(0);
              jettyHandler = new AbstractHandler() {
                  public void handle(String target, Request req, HttpServletRequest request,
                                     HttpServletResponse response) throws IOException, ServletException {
                      response.setContentType("text/plain");
  
                      String[] operands = request.getRequestURI().split("/");
  
                      String name = "";
                      String command = "";
                      String value = "";
  
                      //operands[0] = "", request starts with a "/"
  
                      if (operands.length >= 2) {
                          name = operands[1];
                      }
  
                      if (operands.length >= 3) {
                          command = operands[2];
                      }
  
                      if (operands.length >= 4) {
                          value = operands[3];
                      }
  
                      if (command.equals("report")) { //report a number of lines written
                          response.getWriter().write(makeReport(name, value));
                      } else if (command.equals("request") && value.equals("block")) { //request a new block of work
                          response.getWriter().write(requestBlock(name));
                      } else if (command.equals("request") && value.equals("name")) { //request a new name to report with
                          response.getWriter().write(requestName());
                      } else { //non recognized response
                          response.getWriter().write("exit");
                      }
  
                      ((Request) request).setHandled(true);
                  }
              };
  
              server.setHandler(jettyHandler);
  
              // Select any available port
              server.start();
              Connector[] connectors = server.getConnectors();
              NetworkConnector nc = (NetworkConnector) connectors[0];
              listeningPort = nc.getLocalPort();
              hostName = InetAddress.getLocalHost().getHostName();
          } catch (Exception e) {
              e.printStackTrace();
          }
      }
docs: Prepares a Jetty server for communicating with consumers.