Hello,

i think slf4j is a better alternative for logging compare to
commons-logging. I don't like to start a slf4j vs commons-logging battle.

Just ask google.

I will change the tobago logging to slf4j.

Regards

Bernd

Mario Ivankovits schrieb:
> hi,
> 
> basically yes, thats what I thought.
> Not sure if registering resource bundles is the way to go as this leads to 
> duplicate/overridden keys then. Think what happens if you have 80+ libraries 
> everyone registering a resource bundle.
> 
> Thats why I thought it should be the responsibility of the app.
> 
> Hmmm ... What about extendig the log api with something like
> 
> log.warn(textKeyMapper, string key, object ... args)
> or even better
> Log log = LogFactory.getLog(textKeyMapper, clazz)
> 
> the textKeyMapper (or whatever name) is a simple interface like
> 
> string getLanguageText(string key)
> 
> or renaming it to TextFormatter with
> 
> string formatText(string key, object ... args)
> 
> The app then could use whatever it would like to to translate the key.
> Not everyone uses resourcebundles.
> 
> If registering such a thing globally means you also have to deal with a scope 
> (regexp against class-name ?) where the resource bundle should be applied. 
> This to avoid the thing said in the first paragraph in this mail.
> 
> Reg cl: now that most classloader issues have been fixed you'd render it end 
> of live?!? Open-Sourceish, I know ;-)
> I still dont get it ... and do not reach a pc till afternoon. But all of the 
> above could make it into cl too. I wont reiterate what I've wrote already.
> I'll abstain  from a negative vote ... You probably know better and I am 
> flexible enough to setup our app as required. Hopefully our users will think 
> the same :-)
> 
> 
> Mario
> 
> -----Original Message-----
> From: simon <[EMAIL PROTECTED]>
> Date: Sunday, Dez 16, 2007 9:17 am
> Subject: Re: [commons] What Logger ?
> To: Reply-    "MyFaces Development" <[email protected]>To: MyFaces 
> Development <[email protected]>
> 
> Hi Mario,
>> You mean a myfaces-commons-logging module, that the following depend on?
>> * myfaces-commons-*
>> * myfaces-core
>> * myfaces-trinidad
>>
>> The problem again is that each of those has its own resource bundle for its 
>> messages, and that there would need to be some mechanism for it to inform 
>> the myfaces-commons-logging module about them.
>>
>> It seems that it might be easier to provide patches to slf4j to register 
>> resource bundles for specific category strings, eg
>>
>>  org.slf4j.LoggerFactory.registerResource(
>>    String category, 
>>    String bundleName);
>>
>> But then the question is how such a call would be triggered. Maybe a static 
>> block on an important class in every library could be used to
>> trigger that..seems sane at first thought, although logging is so
>> surprisingly tricky I am hesitant to say that any new feature is
>> actually possible.
>>
>> Not sure how the SLF4J project would see that kind of patch. I'll ask 
>> though..
>>
>> The same kind of functionality could be added to commons-logging too I 
>> guess. But I had hoped commons-logging was at the end of its development 
>> life..
>>
>> Regards,
>>
>> Simon
>>
>> On Sat, 2007-12-15 at 20:07 +0100, Mario Ivankovits wrote:
>> this sounds like yet another complexity.
>>
>> I18n can be solved by a custom app layer even easier, no?
>>
>> So this would mean we should go your custom myfaces logger wrapper. I would 
>> not complain if commons depend on it, I think.
>>
>>
>> Mario
>>
>> -----Original Message-----
>> From: simon <[EMAIL PROTECTED]>
>> Date: Saturday, Dez 15, 2007 8:00 pm
>> Subject: Re: [commons] What Logger ?
>> To: Reply-    "MyFaces Development" <[email protected]>To: MyFaces 
>> Development <[email protected]>
>>
>> The issue is that Trinidad (ADF faces) has always emitted
>>> internationalised log messages, by using its own logging implementation.
>>>
>>> But commons-logging does not offer any help for that. If code wants to emit 
>>> a log message that can be internationalised, it looks like this:
>>>
>>> if (log.isDebugEnabled()) {
>>>    String msg = TrinidadMsgFormatter.format("SomeMsgKey", arg1, arg2);
>>>    log.debug(msg);
>>> }
>>>
>>> This is certainly inconvenient.
>>>
>>> The slf4j equivalent looks like this:
>>>  log.debug("SomeMsgKey", arg1, arg2);
>>> which at initial glance seems nicer.
>>>
>>> However there are a number of gotchas. The most important is how the 
>>> resources are found to map (key, args) to a sensible message.
>>>
>>> If the underlying logging impl
> 
> 

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