* @param searchRequestType Type of search request for role-based access control
     * @return List of document data maps
     */
    public List<Map<String, Object>> getDocumentListByDocIds(final String[] docIds, final String[] fields,
            final OptionalThing<FessUserBean> userBean, final SearchRequestType searchRequestType) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();