@Resource
    private SystemHelper systemHelper;

    @Resource
    protected FessConfig fessConfig;

    public void deleteBefore(final int days) {
        searchLogBhv.queryDelete(cb -> {
            cb.query().setRequestedAt_LessEqual(systemHelper.getCurrentTimeAsLocalDateTime().minusDays(days));
        });
    }

    public List<?> getSearchLogList(final SearchLogPager pager) {