Was the application context refreshed when you refreshed the xml bundle?
Is there any logs after refresh?
On 16.08.2011 14:56, Jim Talbut wrote:
The xml-bundle does not contain code - but it does contain instructions that
tell Spring to instantiate objects (and thus to load classes).
"it" is the xml-bundle.
The xml-bundle instructs spring/camel/cxf to set up a web service, when I call
that web service I was getting the old implementation.
I refreshed both the xml bundle and the bundle containing the implementation
and the web service was still getting the old implementation.
When the xml-bundle was uninstalled (by deleting the file) and reinstalled (by
copying the same file back in place again) it picked up the new implementation.
Jim
-----Original Message-----
From: Per-Erik Svensson [mailto:[email protected]]
Sent: 16 August 2011 10:47
To: [email protected]
Subject: Re: Help understanding OSGi class loading
So, if the only things in the system are
osgi framework (felix)
fileinstall
some code bundle (spring bundle)
a bundle with an xml file only
And the xml-bundle imports packages that the spring-bundle exports, than updating and
refreshing the spring-bundle should cause the xml-bundle to be "reloaded".
However, if the xml-bundle does not contain code, why is it important that it gets it's
package dependencies rewired? It will not load any classes anyway (and shouldn't have any
package imports because it needs no packages)? I must be missing something of your
problem. :)
If the xml-bundle however does contain code (and needs to load classes), are
you sure that the only one exporting the packages of those classes is the
spring-bundle. One possiblity is that you have other bundles in the system that
export the same packages and that you're getting wired to those packages
instead.
"It didn't pick up the new version of the classes until I deleted the Spring
file[...]"
1. What is "it"? Which bundle are you expecting to see the changes from? If
it's the xml-bundle, have you confirmed that it's manifest.mf-file states that it needs
at least one package that ONLY the spring-bundle can give.
2. There is no way to unload classes, so if "it" has already loaded the classes
it is using, it doesn't matter that you update the origin of those classes. You also need
a refresh which will rewire the package dependencies, restart the dependent bundles, and
reload the classes.
3. Have you made sure that the framework actually gets an update request on the
spring bundle? Fileinstall only has the info supplied by the OS (file-size,
file creation date and so on) to go on, and might determine that spring-bundleA
and spring-bundleB are the same thing (no change, no update).
Finally, trying this in gogo shell might help you see what is wired to what and
when updates actually happen!
Regards,
Per-Erik Svensson
On Tue, Aug 16, 2011 at 7:08 AM, Jim Talbut<[email protected]> wrote:
I've tried using refresh now (sorry it takes so long to get things
done around here) and it made no difference.
It didn't pick up the new version of the classes until I deleted the
Spring file, waited for fileinstall to pick that up and remove the
bundle, copied the file over again and waited for fileinstall to pick that up.
Note that this is using a 1.0-SNAPSHOT version of the classes so there
is no version number change, if that affects things.
Jim
-----Original Message-----
From: Jim Talbut [mailto:[email protected]]
Sent: 12 August 2011 17:32
To: [email protected]
Subject: RE: Help understanding OSGi class loading
No I didn't.
How does that work with existing instantiated objects?
Thanks
Jim
-----Original Message-----
From: Richard S. Hall [mailto:[email protected]]
Sent: 12 August 2011 14:44
To: [email protected]
Subject: Re: Help understanding OSGi class loading
Did you refresh after doing the update?
On 8/12/11 4:03 AM, Jim Talbut wrote:
Hi,
I've just been surprised by the behaviour of karaf/felix and I'd be
grateful for some help understanding how this works.
My code is split into two chunks:
1. A compiled bundle.
2. A Spring XML file.
My intention is that the Spring file contains all the configuration
relating to the piece of work, whilst the bundle contains the (more
static) compiled code - with the intention of being able to
update/replace the Spring file whenever I want.
I just found an error in the bundle and uninstalled it, but the
bundle
created for the Spring file is still running.
Does this mean that only OSGi services are dynamically removed, and
if
the Spring file directly references exported classes from a bundle
then the classes are only resolved via OSGi when they are loaded?
In which case will restarting the Spring bundle clear it out
adequately
to ensure that it picks up a new compiled bundle?
Thanks
Jim
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