appendJson("query-id", entity.getQueryId(), buf).append(',');
                    appendJson("user-info-id", entity.getUserInfoId(), buf).append(',');
                    appendJson("doc-id", entity.getDocId(), buf).append(',');
                    appendJson("url", entity.getUrl(), buf);
                    buf.append('}');
                    buf.append('\n');
                    try {

        }

        protected void deleteFiles() {
            final Map<String, Path> deleteFileMap = new HashMap<>();
            for (final Path path : deletedFileList) {
                final String docId = getDocId(path);
                if (StringUtil.isBlank(docId) || deleteFileMap.containsKey(docId)) {
                    deleteFile(path);
                } else {
                    deleteFileMap.put(docId, path);

                    cb.query().setQueryId_Equal(clickLog.getQueryId());
                }).ifPresent(entity -> {
                    clickLogList.add(clickLog);
                    final String docId = clickLog.getDocId();
                    Integer countObj = clickCountMap.get(docId);
                    if (countObj == null) {
                        countObj = 1;
                    } else {