assertArgumentNotNull("children", children);
        assertArgumentNotNull("buf", buf);

        final int length = children.getLength();
        for (int i = 0; i < length; ++i) {
            appendNode(children.item(i), buf);
        }
    }

    /**
     * {@link NamedNodeMap}の文字列表現を追加します。
     *
     * @param attrs
     *            属性。{@literal null}であってはいけません
     * @param buf

    protected long crawlingExecutionInterval = Constants.DEFAULT_CRAWLING_EXECUTION_INTERVAL;

    protected int crawlerPriority = Thread.NORM_PRIORITY;

    protected final List<DataCrawlingThread> dataCrawlingThreadList = Collections.synchronizedList(new ArrayList<>());

    public void crawl(final String sessionId) {
        final List<DataConfig> configList = ComponentUtil.getCrawlingConfigHelper().getAllDataConfigList();

            }
        } else {
            paramMap.put(Client.USER_AGENT, fessConfig.getUserAgentName());
        }

        final List<WebAuthentication> webAuthList = webAuthenticationService.getWebAuthenticationList(getId());
        final List<Authentication> basicAuthList = new ArrayList<>();
        for (final WebAuthentication webAuth : webAuthList) {
            basicAuthList.add(webAuth.getAuthentication());

    @SuppressWarnings("unchecked")
    protected Set<RequestData> getAnchorSet(final Object obj) {
        List<String> anchorList;
        if (obj instanceof String) {
            anchorList = new ArrayList<>();
            anchorList.add(obj.toString());
        } else if (obj instanceof List<?>) {
            anchorList = (List<String>) obj;
        } else {
            return null;
        }

            });
            return redirectToRoot();
        }
    }

    protected HtmlResponse doMove(final SearchForm form, final int move) {
        int start = fessConfig.getPagingSearchPageStartAsInteger();
        if (form.pn != null) {
            int pageNumber = form.pn;
            if (pageNumber > 0) {
                pageNumber = pageNumber + move;
                if (pageNumber < 1) {

    }

    public void test_facetQueries() {
        final List<FacetQueryView> list = viewHelper.getFacetQueryViewList();
        assertEquals(3, list.size());
        FacetQueryView view1 = list.get(0);
        assertEquals("labels.facet_timestamp_title", view1.getTitle());
        assertEquals(4, view1.getQueryMap().size());
        FacetQueryView view2 = list.get(1);

    //                                                                        Small Helper
    //                                                                        ============
    protected void verifyCrudMode(final int crudMode, final int expectedMode, final String dictId) {
        if (crudMode != expectedMode) {
            throwValidationError(messages -> {

        if (StringUtil.isNotBlank(fileAuthStr)) {
            final String[] fileAuthNames = fileAuthStr.split(",");
            final List<SmbAuthentication> smbAuthList = new ArrayList<>();
            final List<org.codelibs.fess.crawler.client.smb1.SmbAuthentication> smb1AuthList = new ArrayList<>();
            final List<FtpAuthentication> ftpAuthList = new ArrayList<>();
            for (final String fileAuthName : fileAuthNames) {

    //                                                                        Small Helper
    //                                                                        ============
    protected void verifyCrudMode(final int crudMode, final int expectedMode, final String dictId) {
        if (crudMode != expectedMode) {
            throwValidationError(messages -> {

    //                                                                        Small Helper
    //                                                                        ============
    protected void verifyCrudMode(final int crudMode, final int expectedMode, final String dictId) {
        if (crudMode != expectedMode) {
            throwValidationError(messages -> {