[hibernate-issues] [Hibernate-JIRA] Commented: (HHH-2696) Consider migrating to slf4j

[Steve Ebersole (JIRA)]

    [ http://opensource.atlassian.com/projects/hibernate/browse/HHH-2696?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_27347 ] 

Steve Ebersole commented on HHH-2696:
-------------------------------------

But I was already considering dropping commons-logging in favor of direct log4j use specifically to get these MDC/NDC features. 

I would love to move away from commons-logging as well because of the classloader issues. 

Additionally, I would love to keep using a wrapper/facade so that containers can properly integrate our logging.

But I would prefer that the wrapper/facade manage this MDC, NDC.  Think about what happens otherwise: I need to statically bind in the various logging implementation classes (or at least do silly reflection calls) anyway in order to achieve this; so I have not removed them as dependencies.  The wrapper/facade knows which underlying logging impl is being used and could very easily delegate those MDC/NDC calls itself.  Afterall, isn't this the point of a wrapper/facade?

> Consider migrating to slf4j
> ---------------------------
>
>                 Key: HHH-2696
>                 URL: http://opensource.atlassian.com/projects/hibernate/browse/HHH-2696
>             Project: Hibernate3
>          Issue Type: Improvement
>          Components: core
>    Affects Versions: 3.2.4
>            Reporter: Koda Janh
>   Original Estimate: 1 hour
>  Remaining Estimate: 1 hour
>
> Please consider migrating away from commons-logging and onto slf4j for the reasons mentioned here: http://www.qos.ch/logging/classloader.jsp
> The author of log4j went on to write "logback" which is an implementation of slf4j that has much better performance than log4j and much cleaner output. I recommend you evaluate these alternatives seriously and consider them for future releases of Hibernate.
> To ease migration you could use the "log4j bridge" mentioned here: http://logback.qos.ch/bridge.html
> You simply replace log4j's jar by the bridge jar and all log4j method calls get redirected to logback under the hood.

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