[rsyslog] Alerting rules via a database

[Phil Reilly]

I attempting to allow for flexible rule matches on Syslogs from a web 
front end (rather than entires into the rsyslog config files)

I want to get regexp filters from a db to alert upon messages. Not sure 
the best way to achieve this. I've so far though of.

* Outputting to a pipe and runing it via an alerting script.
* Having file watch the messages.
* Recieving the messages then passing them to rsyslog (yuck)

Can the rule engine allow for match rules outside of the config? is 
there an elegant way of doing this?