final String key = fessConfig.getSystemProperty("saml.attribute.group.name", "memberOf");
        if (StringUtil.isNotBlank(key)) {
            final List<String> nameList = attributes.get(key);
            if (nameList != null) {
                list.addAll(nameList);
            }
        }
        final String value = fessConfig.getSystemProperty("saml.default.groups");
        if (StringUtil.isNotBlank(value)) {

    //                                                                              ======
    @Override
    protected void prepareAssistDirection(final FwAssistDirection direction) {
        direction.directConfig(nameList -> nameList.add("fess_config.properties"), "fess_env.properties");
    }

    // ===================================================================================

        final long now = ComponentUtil.getSystemHelper().getCurrentTimeAsLong();
        if (now - lastLoadedTime > 60000L) {
            final List<String> nameList = loadDataStoreNameList();
            dataStoreNames = nameList.toArray(n -> new String[nameList.size()]);
            lastLoadedTime = now;
        }
        return dataStoreNames;
    }

    protected List<String> loadDataStoreNameList() {

        final Map<String, Object> searchBody = createSearchBody(SEARCH_ALL_NUM);
        List<String> nameList = getPropList(searchBody, getKeyProperty());

        assertEquals(NUM, nameList.size());
        for (int i = 0; i < NUM; i++) {
            final String name = getNamePrefix() + i;
            assertTrue(nameList.contains(name), name);
        }

        List<String> idList = getIdList(searchBody);