need suggestion about jdk 1.4 logging in Tomcat

[Alan Honczar <al...@appi.com.br>]

Hi,

I need a suggestion about java logging within a context.
I´d like to have a way to isolate the jdk1.4 log between Tomcat contexts.

In my own lines of code, I create a JDK1.4 logger with an associated name, Handler and Formatter. This way, I have one log file per context.
My problem is when I add Frameworks like Struts and Hibernate to my context. I would like them logging into my current context log file.

Since they use commons logging, I´ve had to call LogManager.getLogManager().readConfiguration(InputStream is); in order to make the logging engine load my configurations and let me log where I wish.
But that affects in a global way. If I have only one context running, everything is fine, but with many, the last context that called readConfiguration redefines all the precedents.
I looked to the sources of the jdk and found it relies on the System Classloader...

I am a little bit trapped here, as I do not know how to redirect the log of the instances of hibernate and struts to the log of my context of tomcat.

I appreciate very much any suggestions.

TIA,
Alan Honczar


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Re: need suggestion about jdk 1.4 logging in Tomcat

[Boris Unckel <bo...@gmx.net>]

> Since they use commons logging, I´ve had to call
> LogManager.getLogManager().readConfiguration(InputStream is); in order to
make the logging engine
> load my configurations and let me log where I wish.
> But that affects in a global way. If I have only one context running,
> everything is fine, but with many, the last context that called
> readConfiguration redefines all the precedents.
> I looked to the sources of the jdk and found it relies on the System
> Classloader...
> 
> I am a little bit trapped here, as I do not know how to redirect the log
> of the instances of hibernate and struts to the log of my context of
tomcat.
> 
> I appreciate very much any suggestions.
Try x4juli at http://www.x4juli.org
You can configure per ThreadContextClassLoader (so per webapp).
Use one config file per webapp as shown in the examples for tomcat
in the distribution.

Second possibility is to use Tomcat JULI (x4juli is based on Tomcat JULI) it
supports TCCL, too.

I am interested in feedback what you test and your final decision and
solution.

Regards
Boris

Regards
Boris

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