appendJson("access-type", entity.getAccessType(), buf).append(',');
                    appendJson("query-time", entity.getQueryTime(), buf).append(',');
                    appendJson("response-time", entity.getResponseTime(), buf).append(',');
                    appendJson("requested-at", entity.getRequestedAt(), buf).append(',');
                    final Map<String, List<String>> searchFieldMap = entity.getSearchFieldLogList()

            params.put("Requested Time", FessFunctions.formatDate(e.getRequestedAt()));
            params.put("Query Time", toNumberString(e.getQueryTime()));
            params.put("Response Time", toNumberString(e.getResponseTime()));
            params.put("Hit Count", toNumberString(e.getHitCount()));
            params.put("Offset", toNumberString(e.getQueryOffset()));
            params.put("Page Size", toNumberString(e.getQueryPageSize()));