if (logger.isDebugEnabled()) {
            logger.debug("Account Filter: {}", filter);
        }
        final Set<String> subRoleSet = new HashSet<>();
        search(bindDn, filter, new String[] { fessConfig.getLdapMemberofAttribute() }, () -> ldapUser.getEnvironment(), result -> {
            processSearchRoles(result, entryDn -> {
                updateSearchRoles(roleSet, entryDn);

                if (StringUtil.isNotBlank(groupFilter)) {

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

    }

    default void setLdapSecurityPrincipal(final String value) {
        setSystemProperty(Constants.LDAP_SECURITY_PRINCIPAL, value);
    }

    default String getLdapMemberofAttribute() {
        return getSystemProperty(Constants.LDAP_MEMBEROF_ATTRIBUTE, "memberOf");
    }

    default void setLdapMemberofAttribute(final String value) {