private String generateSequence() {
        StringBuilder sb = new StringBuilder(DATE_TIME_FORMAT.format(LocalDateTime.now()));
        for (int i = 0; i < SEQUENCE_LENGTH; i++) {
            sb.append(r.nextInt(10));
        }
        return sb.toString();
    }
Generate the file name for s3

@param identifier The identifier of dirty data
@return File name of s3
inlong-sort/sort-flink/base/src/main/java/org/apache/inlong/sort/base/dirty/sink/s3/S3Helper.java