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https://issues.apache.org/jira/browse/COCOON-1765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12524403
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Daniel Fagerstrom commented on COCOON-1765:
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Pax logging supports all major logging framework in an OSGi friendly way. 
Currently I just use it as an (better) implementation of Commons Logging. All 
the classloading tricks of the ordinary Commons Logging implementation makes it 
frustrating to use in an OSGi environment.

The point with using the Pax OSGi logging service from OPS4J in combination 
with the Commons Logging implementation would be that the logging output would 
be available though the API of the OSGi logging service. But at this point I 
don't know whether that would be useful or not, so it can wait.

> Logging
> -------
>
>                 Key: COCOON-1765
>                 URL: https://issues.apache.org/jira/browse/COCOON-1765
>             Project: Cocoon
>          Issue Type: New Feature
>          Components: - OSGi integration
>            Reporter: Reinhard Poetz
>
> [...] But my main thoughts is that logging need to be a centralized service, 
> common for all blocks (separate logging solutions for each block would be a 
> pain).
> The logging implementation is contained in a block (that is installed early) 
> and makes the logger available as a service that other block can get through 
> the service manager. This way the logging implementation is chosen by the 
> choice of logging block. Observe that I only is talking about the blocks fw, 
> within a block an ordinary ECM can be set up and it will inject the logger in 
> its managed objects through the usual Avalon style.
> Using the same logger interface everywhere is also practical I guess we 
> continue to use the o.a.avalon.framework.logger.Logger one. 
> (by Daniel Fagerstrom: 
> http://marc.theaimsgroup.com/?l=xml-cocoon-dev&m=113889468124728&w=2)

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