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I have a transformation where I read in a raw application/octet-stream into a stream field using a RESTClient step, which is working correctly. Now, I would like to write the (*.jpg) file to the local filesystem. What is the best/easiest way to do this?

I found this snippet that uses the User defined Java class step, but the example gets the file content from a column instead of a stream field. But it seems like what I might need.

https://naimishgohil.wordpress.com/2016/06/09/extraction-of-blob-content-using-pentaho-kettle-ce/

I tried referencing the stream field in the UJDC step, but I'm apparently not using the correct syntax or don't understand the step well enough.

Any help is appreciated!

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Turns out, RTFM worked. I found this reference useful for figuring out how to get stream data into the UDJC step:

https://hop.apache.org/manual/latest/pipeline/transforms/userdefinedjavaclass.html

Once I used the proper syntax and grabbed my dynamic values from the stream, everything works as expected.

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