Re: [jboss-as7-dev] Exposing OSGi runtime bundle management through the Detyped API
On 29/09/2011 13:28, Thomas Diesler wrote:
|I'd prefer an operation 'list-bundles' with every bundle
being an
addressable resource. |
No sure I follow this completely...
So you have bundles as addressable resources:
/subsystem=osgi/bundle=0
/subsystem=osgi/bundle=1
/subsystem=osgi/bundle=2
etc...
and then you'd like an operation
/subsystem=osgi:list-bundles
?
Isn't that what you get when you call
/subsystem=osgi:read-children-names(child-type=bundle)
or simply in the CLI
ls bundle
?
|The attributes you mention are fine for a start, however please have
a look at BUNDLE_TYPE
<http://www.osgi.org/javadoc/r4v42/org/osgi/jmx/framework/BundleStateMBean...
and check whether you want to support one or the other as well. The
list of supported attributes can always be expanded.
|
Yeah I wanted to start small and add more later on, but thinking more
about it, exposing the bundle's start level should probably go in the
first round.
|Strictly speaking the start-level is not a property of the
framework,
but of the StartLevel service. It'd be better to model that service as
an addressable resource. In future there will probably be more services
/subsystem=osgi/service=startlevel:write-attribute(name=startlevel,value=5)
|
That depends on how you look at it :) up until core 4.2 it's exposed
through the Start Level service. From core 4.3 start level is actually
an API on the Framework (you need to adapt bundle 0 to get the start
level API) so for the future it might actually be more consistent to
represent this as a property of the framework. (BTW the Start Level
services will still be supported for BW compatibility).
|For consistency the bundle operations should be called start/stop |
|
||/subsystem=osgi/bundle=1:start
||/subsystem=osgi/bundle=1:stop
|
The reason why I suggested start-bundle and stop-bundle is that start
and stop are highly generic and I was worried that in the future there
might be global operations called start and stop. Hence I added the
-bundle suffix.
|
Are you planning to support start options?
|
Ultimately yes, but not in the initial cut. Most people don't use those
AFAIK.
|Glad you considered domain mode ;-)
cheers
-thomas
|||
Thanks for the feedback!
David
On 09/28/2011 05:57 PM, David Bosschaert wrote:
> Hi all,
>
> I'm planning to add some runtime management via the Detyped API to the
> OSGi subsystem. After getting some staring point input from Brian and
> Thomas I wrote a page on how an initial implementation could look like.
>
> Any feedback appreciated:
> http://community.jboss.org/wiki/OSGiRuntimeManagementUsingDetypedAPI
>
> Cheers,
>
> David
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Thomas Diesler
JBoss OSGi Lead
JBoss, a division of Red Hat
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