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From David Jencks <>
Subject Re: Possible for G to directly consume a Tomcat server config w/o changes?
Date Fri, 05 Jun 2009 07:00:37 GMT

On Jun 3, 2009, at 10:35 PM, Kevan Miller wrote:

> On Jun 2, 2009, at 6:46 PM, David Jencks wrote:
> <snip>
>> I played with something like this on the plane today..... it might  
>> not take more that a couple days to get _something_ working that  
>> interprets server.xml files.  It turns out there's no schema for  
>> tomcat configurations so it may be an adventure interpreting the  
>> same files they do.
>> We might be able to copy their digester configuration but replace  
>> defaults with geronimo classes instead of tomcat classes.  I find  
>> digester grammar so hard to understand however that I started by  
>> generating a schema from a sample file and modifying it to fit the  
>> digeter rules.
>> My current idea is to have a TomcatServerGBean that has a  
>> server.xml as an attribute, which it reads into a jaxb tree, which  
>> we call a "construct(ClassLoader cl)" method on to set up the  
>> tomcat objects.  If this works it should be fairly easy.... no idea  
>> if it will actually work though.
>> Next step would be a builder that, given a server.xml, sets up such  
>> a gbean.
> Sounds interesting. IIUC, this embedded Tomcat instance replaces our  
> current embedded Tomcat. It improves our ability to configure this  
> instance -- it's native Tomcat config.
> Are you thinking about all configuration files? E.g. WEB-INF/ 
> context.xml, conf/context.xml? There are catalina.policy,  
>, tomcat-users.xml, also. Hmm. gets a little  
> messier...

I have enough working now so I can run the admin console on a server  
set up this way.  I haven't looked at any files other than server.xml  
yet.  Some like tomcat-users.xml are for a security realm we aren't  
going to use or, probably, support using.  Not sure about the others.

david jencks

> --kevan

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