Am 07.06.2011 20:16, schrieb BJ Hargrave:
Have considered implementing your own HttpContext object? You can then
do whatever custom lookup mechanism you want.
--
Seems reasonable to have a look at this. Could be a nice approach for
resource lookup (e.g. *.zol). But what about the controller classes
referenced in the resources? Objects of these get instantiated by the ZK
implementation on the fly and thus use its classloader.
So what would be best practice loading classes (importing packages)
in/from referenced/tracked bundles dynamically?
Thanks,
Martin
**
From: Martin Petzold <[email protected]>
To: OSGi Developer Mail List <[email protected]>
Date: 2011/06/07 13:57
Subject: [osgi-dev] ZK Web Application Framework with OSGi
Sent by: [email protected]
------------------------------------------------------------------------
Hi osgi-devs,
we are working on the integration of ZK (http://www.zkoss.org
<http://www.zkoss.org/>) in an
OSGi environment. We would like to have the two ZK servlet registrations
seperated from the x web content/applications (xml files, classes and
resources). We have got one ZK bundle that registeres the servlets
(using PAX Web) and x other bundles with *.zol resource files,
controller classes and other resources.
ZK looks up resources on the classpath, so we need some mechanism to add
the resources of other bundles (dynamically) to this classpath. For now
we have identified two possibilities:
1. Use fragment bundles (host is ZK bundle): Resources would be found
and this works out. But we don't have that loose coupling and also no
separat classloader and less powerful lifecycle.
2. Use regular bundles: Export all packages containing resources and use
"Dynamic-ImportPackage" in the ZK bundle.
2b. I think it could be possible to use an extender pattern and track
these bundles from the ZK bundle, then import packages/resources that
have been declared somehow dynamically (in Manifest)?! Via resolver hook
or what is capable of this?
What do you think is best and are there any other patterns we could use?
Is this even somehow possible on service layer level?
Big thanks in advance,
Martin
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