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From Joe Bohn <>
Subject Re: Tomcat, logging, admin portlet, and GBeans
Date Wed, 31 Aug 2005 17:56:08 GMT

Jeff Genender wrote:

> Tomcat uses a logging it's already GBeanized.  It can have 
> multiple logs as there can be a valve set at the Engine, Host, and 
> Context levels.
> To do this from a Gbean perspective, I would query for all of the 
> ValveGBeans and call getInternalObject() on it.  Verify its an 
> instance of org.apache.catalina.valves.AccessLogValve and then Query 
> that object for its prefix and suffix properties.  This will give you 
> the log file name (they live in the $GERONIMO_HOME/var/catalina/log 
> directory).
> You also could create a Tomcat logging GBean to make this process a 
> little easier, but it *must* extend the ValveGBean because since its 
> essentially a valve, it needs to be in the chain of valve interceptors.
Thanks for the clarification.   I need to educate myself on logging 
valves.  That wasn't obvious to me when looking at the plan for the 
server (ie. I didn't notice a GBean for the logs).

> Would it not just be easier to query the 
> $GERONIMO_HOME/var/catalina/log directory for files?

Yes, I thought of that too.   I was trying to stay within the general 
design of the portlet as it stands.   I suppose the handling of the log 
content could be fundamentally different in the portlet between jetty 
and tomcat.

> Jeff
>> I was investigating what is necessary to get the log management 
>> portlet in the console working for tomcat.   It currently only works 
>> to display the jetty web log.
>> As I was digging into this it is starting to get a little deeper than 
>> I anticipated and would like some recommendations.
>> - The log portlet references a GBean object for the JettyRequestLog.
>> - I don't see an equivalent GBean in tomcat.  Should I attempt to 
>> create one and wrap the Tomcat web log in a GBean too?

Joe Bohn

"He is no fool who gives what he cannot keep, to gain what he cannot lose."   -- Jim Elliot

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