Re: [log4perl-devel] Structured logging in log4perl

[Mike S. <m...@pe...>]

On Fri, 15 Mar 2013, Dmitry Bigunyak wrote:

> That brings me to the idea of having a chain of layout (in current 
> terminology) when you get an actual result passed through a number of 
> layouts and formatted in each of them accordingly.

Have you looked at composite appenders yet?

     http://search.cpan.org/~mschilli/Log-Log4perl-1.40/lib/Log/Log4perl/Appender.pm#Composite_Appenders

You can use a composite appender to preprocess the message and have it
forwarded to the target appender right after.

For the type of processing you have in mind, I've originally put
warp_message in place, but I agree that the fact that it always produces
an array ref isn't helpful. Maybe we need another preprocess hook for
appenders in Log4perl.

-- 
-- Mike

Mike Schilli
m...@pe...