protected void updateLogLevels(ActionRequest actionRequest) throws Exception {

    Enumeration<String> enu = actionRequest.getParameterNames();

    while (enu.hasMoreElements()) {
      String name = enu.nextElement();

      if (name.startsWith("logLevel")) {
        String loggerName = name.substring(8);

        String priority = ParamUtil.getString(actionRequest, name, Level.INFO.toString());

        Log4JUtil.setLevel(loggerName, priority, true);
      }
    }
  }
  protected void addLogLevel(ActionRequest actionRequest) throws Exception {
    String loggerName = ParamUtil.getString(actionRequest, "loggerName");
    String priority = ParamUtil.getString(actionRequest, "priority");

    Log4JUtil.setLevel(loggerName, priority, true);
  }