}
        final Set<String> subRoleSet = new HashSet<>();
        final Set<String> sAMAccountGroupNameSet = new HashSet<>();
        search(bindDn, filter, new String[] { fessConfig.getLdapMemberofAttribute() }, () -> ldapUser.getEnvironment(), result -> {
            processSearchRoles(result, entryDn -> {
                final String roleName = getSearchRoleName(entryDn);

    }

    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) {