perfsonar development work

[Uros Juvan <>]

Roman Lapacz wrote:
> Uros Juvan wrote:
> > > It looks reasonable to me. I just have to check if Tomcat is shipped 
> > > with classes, which already implement some kind of web.xml handling, 
> > > which I am almost sure it does. I then need to evaluate if it seems 
> > > reasonable potentially adding another Tomcat/Servlet jar file to our 
> > > jar-repository, or does it seem easier to XML parse web.xml by 
> > > myself and insert new <listener> if necessary.
> >
> > Answering my own mail :)
> > Tomcat uses org.apache.catalina.startup.ContextConfig class located 
> > inside server/lib/catalina.jar library to parse web.xml. Internally 
> > it looks like it uses SAX parser, but also some kind of validator. 
> > I'm not sure whether it would be reasonable to use this solution, 
> > since it is too specific container-centric. I think it would be 
> > better writing our own class, without validation.
> >
> > What do you think?
> >
> > Maciej, Loukik, Roman, ... ?
>
> You could create new web.xml file with the same content plus new 
> listener, put it in $PERFSONAR/conf/ directory as web-axis-1.4.xml, 
> and alter deploy action to copy web-axis.xml file to 
> $TOMCAT/webapps/axis/WEB-INF/ as web.xml.

True, but that would break if user for example added some content on her 
own, or when we switch to other version of AXIS. What I am suggesting is 
make very flexible modifier class, inserting our <listener> at 
appropriate location if necessary (i.e. one does not exist already).

> Roman
>
> > Regards,

Regards,

--
Uroš Juvan
Arnes