search(fessConfig.getLdapAdminUserBaseDn(), fessConfig.getLdapAdminUserFilter(user.getName()), null, adminEnv, result -> {
            if (!result.isEmpty()) {
                setAttributeValue(result, fessConfig.getLdapAttrSurname(), o -> user.setSurname(o.toString()));
                setAttributeValue(result, fessConfig.getLdapAttrGivenName(), o -> user.setGivenName(o.toString()));

     * The value is, e.g. sn <br>
     * comment: LDAP attribute for surname.
     * @return The value of found property. (NotNull: if not found, exception but basically no way)
     */
    String getLdapAttrSurname();

    /**
     * Get the value for the key 'ldap.attr.givenName'. <br>
     * The value is, e.g. givenName <br>
     * comment: LDAP attribute for given name.