Question

How can we poll for a file in a folder and initiate some activity/process based on existence/arrival of a file?

Answer 1

I think, this can be achieved using following steps (not sure whether there is any OOTB solution for this or not).

1) Create a Java program, which can read certain directory for any new files and create .jar.

2) Import .jar in to IBM BPM and create a Java integration service.

3) Create timer based UCA (which fires on specific frequency of time) , attach above service with the UCA.

4) Write additional logic to start the process on arrival of any new document (using tw.system.startProcessByName)