JRuby Scripts

Dears,

I am a pure application consultant and just went thru the OBE - Using Files as Orchestration Input and Output, and found such a function can be very useful to clients. However, the current client is asking to load the WO files into JD Edwards (and later maybe PO or any other master files), and it looks like the jRuby scripts under Custom for Rule in this example is dedicated to creating JSON object to pass into SO entry orchestration. So how to get the jRuby scripts if try to pass WO/PO or any other entry orchestrations? Thanks lot!