On Fri, Aug 16, 2013 at 12:19 PM, Harry Metske <[email protected]> wrote:
>
> indeed , tomcat has no option to have webapp specific classloading and
> therefore it is war surgery.
> Other appservers might have, for example WebSphere has so called shared
> libraries that can be assigned to one or more applications, so you can have
> different configurations for multiple wiki's without war-surgery.
You can have webapp specific system properties in Tomcat. Currently, I
have 5 separate JSPWiki instances in the same Tomcat instance, all
running from the same JSPWiki WAR, but each with a specific property
file.
I'm still using 2.10.0-svn-10, so this is from before the recent
property changes. I'm using Tomcat 7.0.42, but I believe this was
already working in Tomcat 6.
In the Tomcat conf/Catalina/localhost directory, I have five "Context"
XML files (one per JSPWiki instance). They all follow the same simple
pattern. For example, here's my Perso.xml context file, which creates
a "Perso" JSPWiki instance (accessible from
http://<tomcat:port>/Perso/):
<?xml version="1.0" encoding="UTF-8"?>
<Context docBase="F:/app/jspwiki-2.10.0-svn-10" swallowOutput="true">
<Parameter override="false"
name="jspwiki.propertyfile"
value="F:/app/jspwiki-2.10.0-svn-10/WEB-INF/jspwiki-common.properties"/>
<Parameter override="false"
name="jspwiki.propertyfile.cascade.1"
value="F:/wiki/perso/conf/override.properties"/>
</Context>
docBase is where I extracted the JSPWiki WAR file
(F:/app/jspwiki-2.10.0-svn-10 in my case).
Inside the WEB-INF directory of the WAR file, I put a
jspwiki-common.properties file that contains all settings common to
all my JSPWiki instances. This is the jspwiki.propertyfile parameter,
which is the same in all contexts.
Inside a directory dedicated to my Perso JSPWiki instance, I put a
override.properties file that contains the settings specific to the
Perso JSPWiki instance. This is the jspwiki.propertyfile.cascade.1
parameter, which is different in every context.
Once defined in a context file, despite originating from the same WAR,
the web apps behave fully independently from each other. They have
their own work directories, their own sessions, etc.
Regards,
Adrien
