public static void guiRequestHandler(edu.isi.webtools.http.HttpExchange xchg) {
    { String request = edu.isi.webtools.http.HttpExchange.getRequestBody(xchg);
      String response = GuiServer.serverProcessSoapRequest(request);

      edu.isi.webtools.http.HttpExchange.getReplyStream(xchg).print(response);
    }
  }