return null;
    }

    /**
     * Replaces credentials in the given value.
     * @param credentials The credentials.
     * @param value The value to replace.
     * @return The value with credentials replaced.
     */
    protected String replaceCredentials(final Credentials credentials, final String value) {
        if (StringUtil.isNotBlank(value)) {

                .actionGet(this.settings.getIndicesTimeout());
    }

    /**
     * Creates the analyzer settings index name.
     * @param settingsIndexName The base settings index name.
     * @return The created analyzer settings index name.
     */
    protected String createAnalyzerSettingsIndexName(final String settingsIndexName) {
        return settingsIndexName + "_analyzer";
    }

    /**

 * and handling the overall crawling lifecycle.
 *
 * <p>It implements the Runnable interface to be executed in a separate thread,
 * and the AutoCloseable interface to ensure resources are properly released after use.
 *
 * <p>The crawler uses several services and components, such as UrlQueueService, DataService,
 * UrlFilter, RuleManager, CrawlerContainer, IntervalController, and CrawlerClientFactory,
 * to perform its tasks.

                    @Override
                    public XPathAPI load(final String key) {
                        if (logger.isDebugEnabled()) {
                            logger.debug("created XPathAPI by {}", key);
                        }
                        return new XPathAPI();
                    }
                });
    }

    /**
     * Returns data as XML content of String.

   APPENDIX: How to apply the Apache License to your work.

      To apply the Apache License to your work, attach the following
      boilerplate notice, with the fields enclosed by brackets "[]"
      replaced with your own identifying information. (Don't include
      the brackets!)  The text should be enclosed in the appropriate
      comment syntax for the file format. We also recommend that a

        final CookieSpecProvider laxStandardProvider =
                new RFC6265CookieSpecProvider(RFC6265CookieSpecProvider.CompatibilityLevel.RELAXED, publicSuffixMatcher);
        final CookieSpecProvider strictStandardProvider =
                new RFC6265CookieSpecProvider(RFC6265CookieSpecProvider.CompatibilityLevel.STRICT, publicSuffixMatcher);

     *
     * @param info The FTP information containing host, port, and other connection details
     * @return A configured FTP client ready for use
     * @throws IOException If the FTP client cannot be created or connected
     */
    protected FTPClient getClient(final FtpInfo info) throws IOException {
        FTPClient ftpClient = ftpClientQueue.poll();
        if (ftpClient != null) {