[slf4j-user] slf4j JDK - does not show the class and method that invokes the logger

[Ceki Gülcü]

At 09:18 PM 11/10/2005, Pusposuharto, Budiono wrote:
>Hi,
>
>I'm just started using slf4j. I think this is great. Thanks for putting it 
>together.

Thank you. I am glad you like it.

>I have a question in regards to the JDK Logger:
>Whenever a log info is displayed, it doesn't show the class and the method 
>that invokes the logger. Instead it displays 
>"org.slf4j.impl.JDK14LoggerAdapter info".
>Is there any plan to make it so that it shows the real caller of the log, 
>so that the output is similar to the JDK 1.4 logger as if the logger is 
>invoked directly?

Unfortunately, contrary to log4j, the JDK 1.4 API does not allow the 
wrapper class, in this case SLF4J, to specify that the caller is one level 
higher. Commons-logging circumvents this limitation by creating an 
exception, parsing it and passing the information to JDK 1.4. However, this 
approach can have quite a severe performance impact, which is why SLF4J did 
not adopt the same approach.

I hope this answers your question,

>
>Thanks again,
>Bud Pusposuharto

-- 
Ceki Gülcü

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