[slf4j-dev] slf4j i8ln

Ralph Goers rgoers at apache.org
Mon Aug 24 22:33:23 CEST 2009


On Aug 24, 2009, at 1:25 PM, Ceki Gulcu wrote:

>
>
> Takeshi Kondo wrote:
>> Hi Ceki
>>> The fact that it can't be done in log4j does not mean that it  
>>> can't be done.
>> Is it mean that it can be done in logback?
>> If it is, I'll change logger to logback.
>
> To be honest, at present time it can't be done in logback either.  
> However, logback already has support for TurboFilters [1] which can  
> already do arbitrary filtering. We'd need to enhance turbo filters  
> so that they influence the contents of the logging event. My point  
> is that the hook is already there, it needs to be enhanced.
>


What would need to be enhanced? Turbo Filters have access to the event  
and as far as I recall the event is not immutable. However, this  
becomes highly dependent on filters being run in the correct order.

Ralph



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