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From Jason Dillon <>
Subject Re: [BUILD] trunk: Failed for Revision: 653204
Date Tue, 06 May 2008 09:51:20 GMT
Will SLF4J's Logger get vararg methods soon?  Please?


On May 6, 2008, at 4:15 PM, Ceki Gulcu wrote:

> Jason Dillon <jason@...> writes:
>> The other option, is to create our own SLF4J implementation, which
>> provides this serialization muck... which may also allow us to add
>> some ability to inject some state into the MDC and/or NDC to provide
>> more details about the logger, like which plugin or which ear they
>> came from, etc...
>> --jason
>> On May 6, 2008, at 1:13 AM, Jarek Gawor wrote:
>>> Jason,
>>> I think we need a better solution then changing the code to have
>>> static loggers. There is tons of code that does
>>> LoggerFactory.getLogger(getClass()); and so unless we update all of
>>> the code to use static loggers, sooner or later this problem with
>>> seralization will bite us again. So I think we will need a way for a
>>> logger to serialize/deserlialize ok and at the same time continue to
>>> update the code to use static loggers.
>>> Jarek
> I think that Jason's proposal to inject contextual information about
> the logger via MDC is really very good. I'd be happy to support
> context injection via MDC should the need arise.
> Jarek's observation about tons of code using the
> LoggerFactory.getLogger(getClass()) idiom may be true for geronimo but
> is probably not true generally. The more common idiom declares loggers
> as static members.
> Moreover, keep in mind that loggers in all underlying implementations,
> including j.u.l, log4j and logback, are not intended to survive
> serialization. Thus, you may render your own implementation of SLF4J
> logger serializable, but I don't see how the underlying loggers would
> become serializable.
> As far as I can tell, context injection via MDC plus static loggers
> should meet most needs without creating complications.

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