}

        final OneWayCryptographer oneWay;
        final String digestAlgorism = fessConfig.getAppDigestAlgorism();
        if ("sha512".equalsIgnoreCase(digestAlgorism)) {
            oneWay = OneWayCryptographer.createSha512Cryptographer();
        } else if ("md5".equalsIgnoreCase(digestAlgorism)) {
            oneWay = new OneWayCryptographer("MD5", OneWayCryptographer.ENCODING_UTF8);
        } else {

     *
     * @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 -> {
            cb.query().setEndTime_LessThan(targetTime);
        });
    }

    /**