final SystemHelper systemHelper = ComponentUtil.getSystemHelper();

        final StringBuilder resultBuf = new StringBuilder();

        // purge crawling sessions
        try {
            crawlingInfoService.deleteBefore(systemHelper.getCurrentTimeAsLong());
        } catch (final Exception e) {
            logger.error("Failed to purge crawling sessions.", e);
            resultBuf.append(e.getMessage()).append("\n");
        }

     * This method is used for data cleanup and maintenance operations.
     *
     * @param days the number of days to keep user information records
     */
    public void deleteBefore(final int days) {
        userInfoBhv.queryDelete(cb -> {
            cb.query().setUpdatedAt_LessEqual(systemHelper.getCurrentTimeAsLocalDateTime().minusDays(days));
        });
    }

     * Used for cleaning up old log entries.
     *
     * @param days the number of days to look back from the current time
     */
    public void deleteBefore(final int days) {
        final long oneday = 24 * 60 * 60 * 1000L;
        final long targetTime = ComponentUtil.getSystemHelper().getCurrentTimeAsLong() - days * oneday;
        jobLogBhv.queryDelete(cb -> {