protected String getRootUrl(ConfigurationParser configParser) {
    int serverPort = 9000;
    if (getHttpPort() != null && getHttpPort().length() > 0) {
      serverPort = Integer.parseInt(getHttpPort());
    } else {
      String serverPortStr = configParser.getProperty("http.port");
      if (serverPortStr != null) {
        serverPort = Integer.parseInt(serverPortStr);
      }
    }

    return String.format("http://localhost:%d/", serverPort);
  }