*/
    public CrawlerContext() {
        // Default constructor
    }

    /**
     * Session identifier for the crawling session.
     */
    protected String sessionId;

    /**
     * Current number of active crawler threads.
     */
    protected Integer activeThreadCount = 0;

    /**
     * Lock object for synchronizing access to active thread count.
     */

     *
     * @return a hash code value for this object
     */
    @Override
    public int hashCode() {
        return inputStream.hashCode();
    }

    /**
     * Marks the current position in this input stream.
     *
     * @param readlimit the maximum limit of bytes that can be read before the mark position becomes invalid
     */
    @Override
    public synchronized void mark(final int readlimit) {

        }

        return parser;
    }

    /**
     * Gets a thread-local XPathAPI instance for thread-safe XPath evaluation.
     *
     * @return the XPathAPI instance for the current thread
     */
    protected XPathAPI getXPathAPI() {
        XPathAPI cachedXPathAPI = xpathAPI.get();
        if (cachedXPathAPI == null) {
            cachedXPathAPI = new XPathAPI();

        } catch (final Exception e) {
            throw new ExtractException(e);
        }
    }

    /**
     * Gets an XPathAPI instance from the cache for the current thread.
     *
     * @return the XPathAPI instance
     */
    protected XPathAPI getXPathAPI() {
        try {
            return xpathAPICache.get(Thread.currentThread().getName());

        }
    }

    /**
     * Generates URL queues from a previous session's access results.
     * @param previousSessionId The previous session ID.
     * @param sessionId The current session ID.
     */
    @Override
    public void generateUrlQueues(final String previousSessionId, final String sessionId) {
        final Queue<UrlQueueImpl<Long>> urlQueueList = dataHelper.getUrlQueueList(sessionId);

      <match minShouldMatch="2">
        <match value="user-agent:" type="stringignorecase" offset="0"/>
        <match value="allow:" type="stringignorecase" offset="0"/>
        <match value="disallow:" type="stringignorecase" offset="0"/>
        <match value="sitemap:" type="stringignorecase" offset="0"/>
        <match value="\nuser-agent:" type="stringignorecase" offset="0:1000"/>

         */
        public String toUrl() {
            return toUrl(uri.getPath());
        }

        /**
         * Constructs a child URL by appending the specified child path to the current URL.
         *
         * @param child The child path to append
         * @return The complete child URL
         */
        public String toChildUrl(final String child) {
            final String url = toUrl();