[syslog-ng]Doing a regex substitution in syslog-ng

Hey guys, I'm trying to make a syslog-ng solution to recieve logs from some custom java apps that output syslog data, but I have an issue. Our programmers have already defined a format for their messages, and our log parsers expect this format. I can pass the data around syslog systems, but at the destination file, I need to strip off the syslog headers to leave me with the raw message that was came out of the ajva app. I was hoping that I could do something akin to a filter that did a regex substitution to modify the message to make it look pretty. Is this possible, and if not, is there any other way of pulling this off? Thanks Donavan Pantke