final String indexFieldRole = fessConfig.getIndexFieldRole();
        final String indexFieldLastModified = fessConfig.getIndexFieldLastModified();
        final String indexFieldTimestamp = fessConfig.getIndexFieldTimestamp();
        final String indexFieldLang = fessConfig.getIndexFieldLang();
        final List<String> guestRoleList = fessConfig.getSearchGuestRoleList();
        final Date now = systemHelper.getCurrentTime();