在 Nifi 中，如何从标签列表和包含所有记录的文件（每行一条记录）创建一个 JSON 流文件？

Question

I have a semicolon-delimited file containing 1000 records, one record per line, with each record containing several fields delimited by semicolons. I also have a list of tags for the fields in the records. How do I combine these into a JSON flow file in NiFi?

Semicolon-delimited data file:

r1f1;r1f2;r1f3;r1f4;r1f5
r2f1;r2f2;r2f3;r2f4;r2f5
r3f1;f3r2;r3f3;r3f4;r3f5
...

List of field tags:

f1_tag, f2_tag, f3_tag, f4_tag, f5_tag

I can enter the list of tags into a processor block, but I am not sure which processor, if any, I can use.

Answer 1

Sounds pretty basic. Use ConvertRecord with CSVReader as the Record Reader (don't forget to configure it to use semicolon as the Value Separator !) and set the Record Writer to be JsonRecordSetWriter and there you have it!

By the way, don't forget to add a header row!