final String baseDn = fessConfig.getLdapBaseDn();
            final String accountFilter = fessConfig.getLdapAccountFilter();
            final String groupFilter = fessConfig.getLdapGroupFilter();
            if (StringUtil.isNotBlank(baseDn) && StringUtil.isNotBlank(accountFilter)) {
                final LdapManager ldapManager = ComponentUtil.getLdapManager();

        form.ldapBaseDn = fessConfig.getLdapBaseDn();
        form.ldapAccountFilter = fessConfig.getLdapAccountFilter();
        form.ldapGroupFilter = fessConfig.getLdapGroupFilter();
        form.ldapMemberofAttribute = fessConfig.getLdapMemberofAttribute();
        form.notificationLogin = fessConfig.getNotificationLogin();
        form.notificationSearchTop = fessConfig.getNotificationSearchTop();

    }

    default void setLdapGroupFilter(final String value) {
        setSystemProperty(Constants.LDAP_GROUP_FILTER, value);
    }

    default String getLdapGroupFilter() {
        return getSystemProperty(Constants.LDAP_GROUP_FILTER, StringUtil.EMPTY);
    }

    default void setNotificationLogin(final String value) {