Thomas Mortagne wrote:
>> I notice that in the Tomcat docs there is a reloadable attribute for the
>> org.apache.catalina.Loader interface
>> [...]
>> Doesn't that mean that the corresponding XWiki class could support
>> reloading as a configurable option?
>
> You don't win much time by relaoding Tomcat instead of restarting it,
> the purely Tomcat side is quick compared to XWiki init.
>
> Usually the best is to test everything you can using junit (plus and
> you always sleep better with a good code coverage :)) and only test a
> few complex scenario hard to mock with the complete stack.
Yes, I'm coming around to thinking that's the simplest approach. I tried
setting the Context to reloadable in xwiki.xml and adding my component as a
watched resource:
<Context path="/xwiki" docBase="/usr/lib/xwiki" privileged="true"
allowLinking="true" crossContext="true" reloadable="true">
<!-- make symlinks work in Tomcat -->
<Resources className="org.apache.naming.resources.FileDirContext"
allowLinking="true" />
<!-- allow hot reload of my component -->
<WatchedResource>/usr/lib/xwiki/WEB-INF/lib/mycomponent.jar</WatchedResource>
</Context>
This seemed to trigger a reload of the whole of XWiki, which wasn't pretty,
though it did do the job. Alas it generated a lot of errors in the log in the
process, of the form:
SEVERE: The web application [/xwiki] registered the JDBC driver
[org.postgresql.Driver] but failed to unregister it when the web application
was stopped.
SEVERE: The web application [/xwiki] created a ThreadLocal with key of type
[com.xpn.xwiki.store.migration.AbstractDataMigrationManager.ThreadLock] (value
[com.xpn.xwiki.store.migration.AbstractDataMigrationManager$ThreadLock@334be165])
and a value of type [java.lang.Integer] (value [0]) but failed to remove it
when the web application was stopped.
And lots more of the above. So I won't be doing this...
Incidentally, I think I was wrong about old code persisting after a restart of
Tomcat - I reckon I just missed a step in my process.
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