*/
    protected volatile SmbAuthenticationHolder smbAuthenticationHolder;

    /**
     * The CIFS context.
     */
    protected CIFSContext cifsContext;

    /**
     * Creates a new SmbClient instance.
     */
    public SmbClient() {
        super();
    }

    /**
    * Initializes the SMB client.
    * @see org.codelibs.fess.crawler.client.AbstractCrawlerClient#init()

 *   <li><b>dataClass:</b> The class type to return from the {@link #getData(AccessResultData)} method.</li>
 * </ul>
 *
 */
public class XpathTransformer extends HtmlTransformer {

    /**
     * Creates a new XpathTransformer instance.
     */
    public XpathTransformer() {
        super();
    }

    private static final Logger logger = LogManager.getLogger(XpathTransformer.class);

 * </p>
 *
 */
/**
 * This class is an implementation of {@link UrlQueueService}.
 */
public class UrlQueueServiceImpl implements UrlQueueService<UrlQueueImpl<Long>> {

    /**
     * Creates a new UrlQueueServiceImpl instance.
     */
    public UrlQueueServiceImpl() {
        // NOP
    }

    private static final Logger logger = LogManager.getLogger(UrlQueueServiceImpl.class);

    /**

    /** List of sitemap URLs found in the robots.txt file. */
    private final List<String> sitemapList = new ArrayList<>();

    /**
     * Creates a new RobotsTxt instance.
     */
    public RobotsTxt() {
        // Default constructor
    }

    /**
     * Checks if access to a given path is allowed for a specific user agent according to robots.txt rules.

            logger.debug("Visited urlQueue: {}", urlQueue);
        }
    }

    /**
     * Creates an access result from response data and result data.
     *
     * @param responseData the response data
     * @param resultData the result data
     * @return the created access result
     */
    protected AccessResult<?> createAccessResult(final ResponseData responseData, final ResultData resultData) {

            return responseData;
        } catch (final ChildUrlsException e) {
            return null;
        }
    }

    /**
     * Gets or creates an FTP client for the specified FTP information.
     * This method either reuses an existing client from the queue or creates a new one.
     * It handles SSL/TLS configuration, authentication, and various FTP client settings.
     *

     */
    protected volatile boolean isInit = false;

    /**
     * The MinIO client instance for interacting with object storage.
     */
    protected MinioClient minioClient;

    /**
     * Creates a new StorageClient instance.
     */
    public StorageClient() {
        super();
    }

    @Override
    public synchronized void init() {
        if (isInit) {
            return;
        }

        return xPathApi.evaluateExpression(xpath, doc, XPathNodes.class);
    }

    /**
     * Retrieves an XPathAPI instance from the cache or creates a new one.
     * @return An XPathAPI instance.
     */
    protected XPathAPI getXPathAPI() {
        try {
            return xpathAPICache.get(Thread.currentThread().getName());

        functionScoreQueryBuilder.scoreMode(FunctionScoreQuery.ScoreMode.MULTIPLY);

        return functionScoreQueryBuilder;
    }

    /**
     * Creates a SuggestResponse from the OpenSearch SearchResponse.
     * @param searchResponse The OpenSearch SearchResponse.
     * @return A SuggestResponse instance.
     */

     * Returns an empty map with default values for suggest item fields.
     * @return An empty map.
     */
    public Map<String, Object> toEmptyMap() {
        return emptySource;
    }

    /**
     * Creates an empty map with default values for suggest item fields.
     * @return An empty map.
     */
    protected Map<String, Object> createEmptyMap() {
        final Map<String, Object> map = new HashMap<>();