public static final String SEARCH_LOG_PROPERTY = "search.log";

    public static final String APPEND_QUERY_PARAMETER_PROPERTY = "append.query.parameter";

    public static final String INCREMENTAL_CRAWLING_PROPERTY = "crawling.incremental";

    public static final String CRAWLING_THREAD_COUNT_PROPERTY = "crawling.thread.count";

    public static final String CRAWLING_USER_AGENT_PROPERTY = "crawling.user.agent";

    public static final String LABELS_crawling_thread_count = "{labels.crawling_thread_count}";

    /** The key of the message: Check Last Modified */
    public static final String LABELS_incremental_crawling = "{labels.incremental_crawling}";

    /** The key of the message: Search Logging */
    public static final String LABELS_search_log_enabled = "{labels.search_log_enabled}";

    }

    default void setIncrementalCrawling(final boolean value) {
        setSystemPropertyAsBoolean(Constants.INCREMENTAL_CRAWLING_PROPERTY, value);
    }

    default boolean isIncrementalCrawling() {
        return getSystemPropertyAsBoolean(Constants.INCREMENTAL_CRAWLING_PROPERTY, true);
    }

    default void setDayForCleanup(final int value) {

        getCacheKey(keyObj).ifPresent(key -> {
            try {
                final StatsObject data = statsCache.getIfPresent(key);
                if (data != null) {
                    data.increment();
                }
            } catch (final Exception e) {
                final StringBuilder buf = createStringBuffer(keyObj, getCurrentTimeMillis());
                buf.append('\t').append("action:record");