created = true;
            }
            return created;
        } catch (final Exception e) {
            if (logger.isDebugEnabled()) {
                logger.debug("Failed to create index. index: {}", index, e);
            }
            throw new SuggesterException("Failed to create index.", e);
        }
    }

    /**

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

    /** The size of the preload buffer for checking file format. */
    protected int preloadSize = 512;

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

    /**
     * Checks if the given input stream contains valid sitemap data.

        protected T instance;

        /**
         * The destroyer function to be called when the component is destroyed.
         */
        protected Consumer<T> destroyer;

        /**
         * Creates a new ComponentHolder with the specified instance and destroyer.
         * @param instance the component instance to hold
         * @param destroyer the destroyer function for cleanup (can be null)
         */

    private final Map<String, TesseractOCRConfig> tesseractOCRConfigMap = new ConcurrentHashMap<>();

    private final Map<String, PDFParserConfig> pdfParserConfigMap = new ConcurrentHashMap<>();

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

    /**
     * Initializes this component.
     */
    @PostConstruct
    public void init() {

    private static final int ID_MAX_LENGTH = 445;

    /**
     * Private constructor to prevent instantiation.
     */
    private SuggestUtil() {
    }

    /**
     * Creates a unique identifier for the given text by encoding it to a Base64 string.
     * If the encoded string exceeds the maximum allowed length, it truncates the string
     * to the specified maximum length.
     *

                .execute()
                .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) {

 * </ul>
 *
 * <p>Protected Methods:
 * <ul>
 * <li>{@link #createArraySettingsIndexName(String)}: Creates the name for the array settings index.</li>
 * <li>{@link #createId(String, Object)}: Creates a unique ID for a key-value pair using Base64 encoding.</li>
 * <li>{@link #getFromArrayIndex(String, String, String)}: Retrieves an array of maps from the index based on the key.</li>

/**
 * OpenSearchDataService is an implementation of {@link DataService} for OpenSearch.
 */
public class OpenSearchDataService extends AbstractCrawlerService implements DataService<OpenSearchAccessResult> {

    /**
     * Creates a new instance of OpenSearchDataService.
     * @param crawlerConfig The crawler configuration.
     */
    public OpenSearchDataService(final OpenSearchCrawlerConfig crawlerConfig) {
        index = crawlerConfig.getDataIndex();

    protected LoadingCache<String, XPathAPI> xpathAPICache;

    /** Cache duration in minutes for XPathAPI instances. */
    protected long cacheDuration = 10; // min

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

    /**
     * Initializes the XPathAPI cache with a specified cache duration.

     */
    protected int pollingFetchSize = 1000;

    /**
     * The maximum size of the crawling queue.
     */
    protected int maxCrawlingQueueSize = 100;

    /**
     * Creates a new instance of OpenSearchUrlQueueService.
     * @param crawlerConfig The crawler configuration.
     */
    public OpenSearchUrlQueueService(final OpenSearchCrawlerConfig crawlerConfig) {