final ClickLog clickLog = new ClickLog();
                clickLog.setUrlId((String) doc.get(fessConfig.getIndexFieldId()));
                clickLog.setUrl(url);
                clickLog.setRequestedAt(systemHelper.getCurrentTimeAsLocalDateTime());
                clickLog.setQueryRequestedAt(DfTypeUtil.toLocalDateTime(Long.parseLong(form.rt)));
                clickLog.setUserSessionId(userSessionId);

                searchLog.addDocument(map);
            });
        }
    }

    /**
     * Adds a click log to the queue.
     *
     * @param clickLog The click log.
     */
    public void addClickLog(final ClickLog clickLog) {
        final FessConfig fessConfig = ComponentUtil.getFessConfig();
        if (clickLogQueue.size() > fessConfig.getLoggingClickMaxQueueSizeAsInteger()) {

            bhv.selectCursor(cb -> {
                cb.query().matchAll();
                cb.query().addOrderBy_RequestedAt_Asc();
            }, new LogEntityRowHandler<ClickLog>() {
                @Override
                public void handle(final ClickLog entity) {
                    final StringBuilder buf = new StringBuilder();
                    buf.append('{');
                    appendJson("id", entity.getId(), buf).append(',');