private final ThreadLocal<XPathAPI> xpathAPI = new ThreadLocal<>();

    @Override
    protected ExtractData createExtractData(final String content) {
        final DOMParser parser = getDomParser();
        try (final Reader reader = new StringReader(content)) {
            parser.parse(new InputSource(reader));
        } catch (final Exception e) {
            logger.warn("Failed to parse the content.", e);

        }
        try {
            final BufferedInputStream bis = new BufferedInputStream(in);
            final String enc = getEncoding(bis);

            final DOMParser parser = getDomParser();
            final InputSource inputSource = new InputSource(bis);
            inputSource.setEncoding(enc);
            parser.parse(inputSource);
            final Document document = parser.getDocument();

    }

    protected void storeChildUrls(final ResponseData responseData, final ResultData resultData) {
        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;

     * of String).
     */
    protected Class<?> dataClass = null;

    @Override
    protected void storeData(final ResponseData responseData, final ResultData resultData) {
        final DOMParser parser = getDomParser();
        try (final InputStream in = responseData.getResponseBody()) {
            final InputSource is = new InputSource(in);
            if (responseData.getCharSet() != null) {

    public Logger getLogger() {
        return logger;
    }

    @Override
    protected void storeData(final ResponseData responseData, final ResultData resultData) {
        final DOMParser parser = getDomParser();
        try (final BufferedInputStream bis = new BufferedInputStream(responseData.getResponseBody())) {
            final byte[] bomBytes = new byte[UTF8_BOM_SIZE];
            bis.mark(UTF8_BOM_SIZE);