Github user alopresto commented on the issue:
https://github.com/apache/nifi/pull/1828
Built with `contrib-check` and all tests pass. With Matt's help, I created
a schema registry with a defined schema, generated flowfiles with CSV formatted
data (a hockey roster), and used `SplitRecord` with the `CSVReader` and
`CSVRecordSetWriter` controller services to split the data into individual
flowfiles, then used `LookupRecord` with `ScriptedLookupService` and wrote a
custom Groovy implementation which performed position lookups. Finally, I
output the enriched flowfiles to a `ConvertRecord` processor which wrote them
out in JSON.
Looks very useful and I think this will make a lot of people's flows more
powerful. Thanks Matt.
+1, merging.
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