assertNull(transformer.getThumbnailUrl(responseData, getDocument(data)));

        data = "<img src=\"http://example/foo.jpg\" width=\"x\" height=\"x\">";
        assertNull(transformer.getThumbnailUrl(responseData, getDocument(data)));

        data = "<img src=\"http://example/foo.jpg\" width=\"10\" height=\"100\">";
        assertNull(transformer.getThumbnailUrl(responseData, getDocument(data)));

        return searchEngineClient.deleteByQuery(index, queryBuilder);
    }

    public Map<String, Object> getDocument(final SearchEngineClient searchEngineClient, final String id, final String[] fields) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return searchEngineClient.getDocument(fessConfig.getIndexDocumentUpdateIndex(), builder -> {
            builder.setQuery(QueryBuilders.idsQuery().addIds(id));

        final Map<String, String> resultMap = new HashMap<>();
        final SearchEngineClient client = new SearchEngineClient() {

            @Override
            public OptionalEntity<Map<String, Object>> getDocument(final String index,
                    final SearchCondition<SearchRequestBuilder> condition) {
                final SearchRequestBuilder builder = new SearchRequestBuilder(this, SearchAction.INSTANCE);

        final IndexingHelper indexingHelper = ComponentUtil.getIndexingHelper();
        try {
            final Map<String, Object> doc = indexingHelper.getDocument(searchEngineClient, id,
                    new String[] { fessConfig.getIndexFieldThumbnail(), fessConfig.getIndexFieldConfigId() });
            if (doc == null) {

    }

    // GET /api/admin/searchlist/doc/{doc_id}
    @Execute
    public JsonResponse<ApiResult> get$doc(final String id) {
        return asJson(new ApiDocResponse().doc(searchEngineClient.getDocument(fessConfig.getIndexDocumentUpdateIndex(), builder -> {
            builder.setQuery(QueryBuilders.termQuery(fessConfig.getIndexFieldDocId(), id));
            return true;
        }).orElseGet(() -> {

                if (logger.isDebugEnabled()) {
                    logger.debug("Searching indexed document: {}", id);
                }
                final Map<String, Object> document = indexingHelper.getDocument(searchEngineClient, id,
                        new String[] { fessConfig.getIndexFieldId(), fessConfig.getIndexFieldLastModified(),

        final ByteArrayInputStream is = new ByteArrayInputStream(html.getBytes("UTF-8"));
        parser.parse(new InputSource(is));
        Node node = parser.getDocument().getFirstChild().getLastChild().getFirstChild();
        return tag.matches(node);
    }

    public void test_normalizeQueryLanguages() {
        FessProp.propMap.clear();

            final OptionalThing<FessUserBean> userBean) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        return ComponentUtil.getSearchEngineClient().getDocument(fessConfig.getIndexDocumentSearchIndex(), builder -> {
            final BoolQueryBuilder boolQuery =
                    QueryBuilders.boolQuery().must(QueryBuilders.termQuery(fessConfig.getIndexFieldDocId(), docId));

            } else {
                docId = null;
            }
            if (StringUtil.isNotBlank(docId)) {
                return searchEngineClient.getDocument(fessConfig.getIndexDocumentUpdateIndex(), builder -> {
                    builder.setQuery(QueryBuilders.termQuery(fessConfig.getIndexFieldDocId(), docId));
                    return true;
                });

        try (final InputStream is = responseData.getResponseBody()) {
            final DOMParser parser = getDomParser();
            parser.parse(new InputSource(is));
            final Document document = parser.getDocument();
            // base href
            final String baseHref = getBaseHref(document);
            URI uri;
            try {
                uri = new URI(baseHref == null ? responseData.getUrl() : baseHref);