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From Freeman Fang <freeman.f...@gmail.com>
Subject Re: [DISCUSS] Apache Karaf 4.3.x and resource repositories
Date Fri, 23 Nov 2018 08:10:53 GMT
Agree, since feature is really essential for Karaf and I believe most Karaf users build their
projects based on it.

So we should keep current feature behaviour as is and we can introduce new resource repository
behaviour from configuration switch.

Thanks!
-------------
Freeman(Yue) Fang

Red Hat, Inc. 





> On Nov 23, 2018, at 3:34 PM, Francois Papon <francois.papon@openobject.fr> wrote:
> 
> Hi,
> 
> Yes I also agree with this, I think we should keep the Karaf features as
> a default usage for end-users ;)
> 
> regards,
> 
> François Papon
> fpapon@apache.org
> 
> Le 23/11/2018 à 11:11, Jean-Baptiste Onofré a écrit :
>> Fully agree. Don't get me wrong: I don't want to remove features. We have lot of
unique features in Karaf features that can't achieved using resources repositories.
>> 
>> The idea is more to give a more dynamic and generic approach to OSGi users as transition
to use Karaf features.
>> 
>> Regards
>> JB
>> 
>> Le 23 nov. 2018 à 07:53, à 07:53, Grzegorz Grzybek <gr.grzybek@gmail.com>
a écrit:
>>> Hello
>>> 
>>> Nice round KARAF-6000 number!
>>> 
>>> I added a comment under KARAF-6000 - I generally think that going the
>>> _OSGi
>>> way_ is a good thing™, but we have to remember about all the features
>>> of
>>> ... Karaf features - blacklisting, prerequisites, overrides (bundle and
>>> feature overrides) which may not be directly translatable to OSGi R7
>>> repositories.
>>> But it's a great subject to investigate and I'll be more than happy to
>>> review your PoC!
>>> 
>>> best regards
>>> Grzegorz Grzybek
>>> 
>>> pt., 23 lis 2018 o 05:16 Jean-Baptiste Onofré <jb@nanthrax.net>
>>> napisał(a):
>>> 
>>>> Hi guys,
>>>> 
>>>> as discussed since some weeks, Karaf 4.2.2 should be in vote in
>>> couple
>>>> of weeks.
>>>> I started a Karaf 4.3.x branch locally and master will become 4.3.x
>>> once
>>>> 4.2.x branch will be created.
>>>> 
>>>> Karaf 4.3.x will update to OSGi R7 and other major dependency
>>> updates. I
>>>> will include a new feature/improvement in 4.3.x:
>>>> 
>>>> https://issues.apache.org/jira/browse/KARAF-6000
>>>> 
>>>> Today, Karaf supports resources repositories (yaml or xml) in
>>>> etc/org.apache.karaf.features.cfg. A resource repository looks a bit
>>>> like "old" OBR: it contains resources (bundles but also config, etc)
>>>> with associated requirements and capabilities.
>>>> The resolver uses those requirements and capabilities to find the
>>>> dependency resources he should install when installing a feature or a
>>>> bundle. That's convenient and close to the "core" OSGi approach.
>>>> 
>>>> However, the resource repositories set defined in
>>>> etc/org.apache.karaf.features.cfg is static: it's loaded and
>>> evaluated
>>>> when the features service starts, then the resolver uses it.
>>>> 
>>>> The proposal in KARAF-6000 is to be able to update the resource
>>>> repositories set on the fly (with dedicated commands for instance)
>>> and,
>>>> each time the resource repositories set is modified, perform a new
>>> whole
>>>> resolution.
>>>> Basically, it means that only the "standard" Karaf features would be
>>>> required at startup, the users will be able to use only resource
>>>> repositories (not features repositories) once Karaf is started.
>>>> I already started a PoC for KARAF-6000.
>>>> 
>>>> Thoughts ?
>>>> 
>>>> Regards
>>>> JB
>>>> --
>>>> Jean-Baptiste Onofré
>>>> jbonofre@apache.org
>>>> http://blog.nanthrax.net
>>>> Talend - http://www.talend.com
>>>> 
> 


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