Re: [Quickfixj-users] SLF4J -> Log4J2 with older Quickfixj?

[Robert N. <rob...@gm...>]

Have you done it with a programmatically created appender?

All works on my side when I’m using a statically created appender.

The idea is to not have you statically create appender definition in .xml for each quickfixj.msg.Incoming/Outgoing but rather programmatically create a logger and appender for each.

With 1.x this works without issue but with 1.x you don’t have to completely trash the existing log4j config and you can “hang” programmatically created appenders off an existing statically created logger. ie. quickfixj.msg

But with 2.x you need to reconfigure the log4j each time you make change and so there’s as possibility that by the time you have done that that Quickfix SLF4J is not aware of those loggers. Even though in my case I believe I’m configuring log4j 2.x _prior_ to the SLF4J that runs in Quickfix via SLF4JLog

Also, has anybody succeed in the above when using logback?

> On Mar 4, 2022, at 9:51 AM, Robert Nicholson <rob...@gm...> wrote:
> 
> So I’m on an older version of quickfix pre 1.6
> 
> Does anybody know if it’s straightforward to get the SLF4J->Log4J2 working once you’re application supports Log4J2?
> 
> Is there any changes needed with QuickFixJ code to use different SLF4J api when using Log4J2?
> 
> Cheers.