.maximumSize(fessConfig.getSuggestPopularWordCacheSizeAsInteger().longValue())
                .expireAfterWrite(fessConfig.getSuggestPopularWordCacheExpireAsInteger().longValue(), TimeUnit.MINUTES)
                .build();
    }

    /**
     * Retrieves a list of popular words based on the specified search parameters.
     * Uses caching to improve performance for repeated requests.
     *

     * Cache for storing resource file modification timestamps to enable cache busting.
     * The cache expires after 10 minutes and has a maximum size of 1000 entries.
     */
    private static LoadingCache<String, Long> resourceHashCache =
            CacheBuilder.newBuilder().maximumSize(1000).expireAfterWrite(10, TimeUnit.MINUTES).build(new CacheLoader<String, Long>() {
                @Override

     * The cache is configured with a maximum size of 100 entries and expires after 10 minutes.
     */
    @PostConstruct
    public void init() {
        if (logger.isDebugEnabled()) {
            logger.debug("Initializing {}", this.getClass().getSimpleName());
        }
        crawlingConfigCache = CacheBuilder.newBuilder().maximumSize(100).expireAfterWrite(10, TimeUnit.MINUTES).build();
    }

    /**

            popularWordHelper.clearCache();
        }
    }

    /**
     * Sets the interval for storing search logs.
     *
     * @param searchStoreInterval The search store interval in minutes.
     */
    public void setSearchStoreInterval(final long searchStoreInterval) {
        this.searchStoreInterval = searchStoreInterval;
    }

    /**
     * Cache for storing available artifacts by type.
     * The cache expires after 5 minutes and has a maximum size of 10 entries.
     */
    protected LoadingCache<ArtifactType, Artifact[]> availableArtifacts = CacheBuilder.newBuilder()
            .maximumSize(10)
            .expireAfterWrite(5, TimeUnit.MINUTES)
            .build(new CacheLoader<ArtifactType, Artifact[]>() {
                @Override

    /**
     * Default constructor for SearchLogHelper.
     */
    public SearchLogHelper() {
        // Default constructor
    }

    /** Interval for checking user information in milliseconds (default: 10 minutes). */
    protected long userCheckInterval = 10 * 60 * 1000L; // 10 min

    /** Maximum size of the user information cache. */
    protected int userInfoCacheSize = 10000;

    /** Queue for storing search logs. */

    protected final Set<String> inlineMimeTypeSet = new HashSet<>();

    /** Cache for facet responses */
    protected Cache<String, FacetResponse> facetCache;

    /** Duration for facet cache in seconds (10 minutes) */
    protected long facetCacheDuration = 60 * 10L;

    /** Length of text fragment prefix */
    protected int textFragmentPrefixLength;

    /** Length of text fragment suffix */

    /** Default cron expression for general scheduling (daily at midnight). */
    public static final String DEFAULT_CRON_EXPRESSION = "0 0 * * *";

    /** Default cron expression for search log processing (every minute). */
    public static final String DEFAULT_SEARCH_LOG_CRON_EXPRESSION = "* * * * *";

    /** Default cron expression for daily tasks (daily at midnight). */