topic tGroovy STDIN in Talend Studio

tGroovy STDIN

imholzj — Thu, 25 Oct 2018 20:17:08 GMT

What's best practice?

I have a groovy program that operates on STDIN, do I have to create a file first and pass the file name into tGroovy or can the file be fed (from tHttpRequest) and read from STDIN?

jji

Re: tGroovy STDIN

Anonymous — Mon, 19 Nov 2018 10:07:17 GMT

Hello,

If I understand your requirement very well, do you want to use a tGroovy component to process rows?
Here is a tFlowtoIterate component which reads data line by line from the input flow and stores the data entries in iterative global variables.

The workflow looks like;

Input-->tflowtoiterate-->tGroovy(write your Groovy script).

Best regards

Sabrina

Re: tGroovy STDIN

imholzj — Tue, 20 Nov 2018 14:55:49 GMT

It's actually a json file that I want to parse in the Groovy script.

Right now I have to set an ENV var for fileIn and fileOut, and have the Groovy script use those vars to read and write the results. I was hoping for a cleaner script that would just read the json from STDIN and write the results to STDOUT.

jji