Which product within JBoss, if any, would be most appropriate if I have to create the following functionality:

1. A generic listener thread that monitors various sources http, ftp, smtp
2. Senses a change (date, file size, content etc).
3. Performs a GET (pull) or PUT (push) when gets past 2.

I created an entire Servlet wrapper to the Apache Commons Net FTPClient API to do this. But I am convinced that App Servers have such problems licked and featured this functionality somewhere.

I looked into JTA, JTS...but still wondering. Any pointers would be appreciated.