* @param url The URL to check.
     * @return true if the URL exists in the queue, false otherwise.
     */
    @Override
    protected boolean exists(final String sessionId, final String url) {
        final boolean ret = super.exists(sessionId, url);
        if (!ret) {
            final QueueHolder queueHolder = getQueueHolder(sessionId);
            final Queue<OpenSearchUrlQueue> waitingQueue = queueHolder.waitingQueue;

     * @return true if the rule was successfully removed, false otherwise
     */
    boolean removeRule(Rule rule);

    /**
     * Checks if the specified rule exists.
     *
     * @param rule the rule to check for existence
     * @return true if the rule exists, false otherwise
     */
    boolean hasRule(Rule rule);

    }

    /**
     * Checks if a document exists in the OpenSearch index for the given session ID and URL.
     *
     * @param sessionId The session ID of the document.
     * @param url The URL of the document.
     * @return true if the document exists, false otherwise.
     * @throws OpenSearchAccessException if the existence check fails.
     */
    protected boolean exists(final String sessionId, final String url) {

            File file = new File(targetFile, paths[i]);
            if (file.exists()) {
                if (!file.isDirectory()) {
                    for (int j = 0; j < maxDuplicatedPath; j++) {
                        file = new File(targetFile, paths[i] + "_" + j);
                        if (!file.exists()) {
                            if (!file.mkdirs()) {

        // Default constructor
    }

    /**
     * Adds an extractor to the factory for the specified key.
     * If an extractor already exists for the key, the new extractor is added to the array of extractors,
     * and the array is sorted by weight in descending order.
     * If no extractor exists for the key, a new array containing the extractor is created and associated with the key.
     *

     * Copies content from an SmbFile to a File.
     * @param src The source SmbFile.
     * @param dest The destination File.
     */
    private void copy(final SmbFile src, final File dest) {
        if (dest.exists() && !dest.canWrite()) {
            return;
        }
        try (BufferedInputStream in = new BufferedInputStream(new SmbFileInputStream(src));

        isInit = true;
    }

    /**
     * Checks if a bucket exists in the object storage.
     * @param name the name of the bucket to check
     * @return true if the bucket exists, false otherwise
     * @throws CrawlingAccessException if an error occurs while checking bucket existence
     */

    }

    /**
     * Stores an access result in the data store.
     *
     * @param accessResult the access result to store
     * @throws CrawlerSystemException if the access result is null or already exists
     */
    @Override
    public void store(final AccessResultImpl<Long> accessResult) {
        if (accessResult == null) {
            throw new CrawlerSystemException("AccessResult is null.");
        }

        for (final UrlQueue<Long> urlInQueue : urlQueueList) {
            if (url.equals(urlInQueue.getUrl())) {
                if (logger.isDebugEnabled()) {
                    logger.debug("URL exists in a queue: {}", url);
                }
                return false;
            }
        }

        // check it in result

                    crawlerContext.decrementAndGetAccessCount();
                    if (urlQueueService.visited(urlQueue)) {
                        // document already exists
                        if (logger.isDebugEnabled()) {
                            logger.debug("{} exists.", urlQueue.getUrl(), e);
                        }
                        return;
                    }
                    throw e;
                }