[logback-user] Turning off sifting appender when MDC not set

[Marco Sousa]

With a filter JaninoEventEvaluator

http://logback.qos.ch/manual/filters.html#JaninoEventEvaluator


-------------------------------------
Marco Sousa


2011/10/18 GS <gurnamsjunk at gmail.com>

> Hi,
>
> I have configured the sifting appender with a default value (unknown) for
> the discriminator, which generates a file called foo-unknown.log.  But I
> would ideally like the appender to not output to any file when the
> discriminator via MDC has not yet been set. Any suggestions?
>
> Thanks,
> G
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