private IngestFactory ingestFactory = null;

    /**
     * Default constructor for IndexUpdater.
     * Initializes a new instance with default settings.
     */
    public IndexUpdater() {
        super();
    }

    /**
     * Initializes the IndexUpdater after dependency injection.
     * Sets up the ingest factory if available in the component container.
     */

        // Inject dependencies
        indexUpdater.searchEngineClient = searchEngineClient;
        indexUpdater.dataService = dataService;
        indexUpdater.urlQueueService = urlQueueService;
        indexUpdater.urlFilterService = urlFilterService;
        indexUpdater.clickLogBhv = clickLogBhv;
        indexUpdater.favoriteLogBhv = favoriteLogBhv;
        indexUpdater.systemHelper = systemHelper;