I've got a route where the input is from im_tcp and I'd like to output the incoming data to a set of files, but select a specific file based on the content of the data.

I can easily do this in om_perl with something that examines the data, figures out the correct file, then stuffs it into that file, but that would appear to require a file open and a file close per event, which seems non-optimal at scale.  So - is the code identified by the PerlCode directive basically run for each event, or is it stateful so I can maintain an array of open files and just stuff the event in the correct one?

Alternatively, can I use xm_perl to find the correct filename and set that as an environment valiable that could be consumed by om_file?

I'm open to other efficient methods for accomplishing this, if there are ideas out there.  Thanks!