Tip: Logging via another logging system

[robshep]

Hi,

I didn't want to setup a new logfile destination - I just wanted to log via the application's main logging subsystem.

I have quickly hacked together a bridge that logs via another logger that can be simply constructed to suit any other logging provider.

Code is here: https://gist.github.com/robshep/918c9b6eb95fd740f11891e3a2ebc9ad

The implementation that will be required can be seen in my local example:
LogbackAccessLogAdapter.java which is configured in the logback-access.xml

In my example, I log to my application's SLF4J logger using the RequestLog logger name, and I also set a filter for ignoring unwanted access log items.

The bridge itself (AccessLogToMainLogAppender.java) goes round-the-houses by using an hacked OutputStream, but that means I can continue using Pattern layout encoders etc for config simplicity.

Anyway, it might be useful to your users so feel free to point at the gist or copy it to a wiki or whatever you like.

Rob