[Quickfixj-users] QuickFIX/J 2.1.1 - SLF4J Log Categories appear incorrect

[<th...@ft...>]

I recently downloaded QF/J 2.1.1 and am upgrading from QF/J 1.6.3.  Most of the work was converting my application code to utilize the ‘java.time’ package.  I have everything running and going thru some tests.  In the process, I noticed log messages in files they were not in before.  We use Log4J and configure the following QF/J properties…

SLF4JLogEventCategory=${senderCompID}.${targetCompID}.event
SLF4JLogIncomingMessageCategory=${senderCompID}.${targetCompID}.msg.incoming
SLF4JLogOutgoingMessageCategory=${senderCompID}.${targetCompID}.msg.outgoing

..and the recently discovered (not in the user manual)…

SLF4JLogErrorEventCategory=${senderCompID}.${targetCompID}.errorEvent

I have spent hours reviewing and comparing QF/J source code trying to determine what changed.

It appears there is a configuration setting 'SLF4JLogPrependSessionID’ described as "Controls whether session ID is prepended to log message.”

The behavior of this setting has been completely changed by the following commit of source file ‘SLF4JLog.java’...

https://github.com/quickfix-j/quickfixj/commit/0eb3359059d3551dde588f3cff6c836119141cf6#diff-82a6b6a09255551e3683d8943e3e4263 <https://github.com/quickfix-j/quickfixj/commit/0eb3359059d3551dde588f3cff6c836119141cf6#diff-82a6b6a09255551e3683d8943e3e4263>

It appears the intent of this change did not create the desired effect as my log “categories" now all have the SessionID appended. (e.g. 'SENDER.TARGET.eventFIX.4.4:SENDER->TARGET: ')

The current workaround is to configure... SLF4JLogPrependSessionID=N

Would someone please elaborate on the intended use of configuration setting ‘SLF4JLogPrependSessionID’.

Regards - Tommy