+1 for all

regards,

François
fpa...@apache.org

Le 04/05/2020 à 09:26, Grzegorz Grzybek a écrit :
> Hello
>
> ad1) About JAXB. Currently,
> `org.apache.karaf.features.internal.model.processing` package contains not
> that complex model for "Feature override and blacklisting", which reads
> etc/org.apache.karaf.features.xml file to _alter_ features model using
> `org.apache.karaf.features.internal.service.FeaturesProcessor`.
> Nothing that can't be done without JAXB. But I'd have to rewrite some code
> to use StAX/SAX instead.
>
> ad2) as long as the _model_ read from JSON feature files is still rooted at
> org.apache.karaf.features.internal.model.Features class, it's fine wrt
> _feature processing_ ;)
>
> ad3) +1 for simpler resolver. But I remember it's complex not for the sake
> of complexity, but due to complexity of bundle model and reqs/caps model. I
> have a _strange case_ in
> https://github.com/apache/karaf/commits/ggrzybek-conditionals, where
> resolution depends on whether (or not) a feature is in
> <conditional>/<condition>.
>
> ad4) +1
>
> ad5) +2
>
> regards
> Grzegorz Grzybek
>
> pon., 4 maj 2020 o 07:30 Jean-Baptiste Onofre <j...@nanthrax.net> napisał(a):
>
>> Hi guys,
>>
>> I’m working on several improvements this week where I would need your
>> review and thoughts.
>>
>> 1. JAXB remove
>> We have a JAXB dependency in Karaf core just for the features service. As
>> the features model is "static" (we don’t change features model at runtime),
>> I would like to remove the JAXB dependency and generate the parser at build
>> time with SXC for instance. I will add a build profile to generate the
>> parse when the model change (it doesn’t happen very often to be honest).
>> The purpose is to provide a even lighter Karaf runtime. About that, I
>> would like also to promote a bit the minimal distribution and do it even
>> lighter. I propose to push minimal as official docker image, allowing
>> people to start from minimal to create their own docker image (we will
>> provide improved tools about that).
>>
>> 2. Features JSON
>> As an alternative to features XML repo, I’ve working on features JSON
>> repo. It’s similar in term of content, but you will now have the choice
>> between XML and JSON.
>>
>> 3. Simple resolver
>> Several users complained about the features resolver: it might be seen as
>> complex (you have to understand req/caps, etc), it’s not always predictable
>> (due to refresh with optional import, etc). I would like to propose an
>> alternative: the simple resolver. It’s pretty simple: it just takes what
>> you have in features definition. It’s an optional resolver, meaning that
>> the default will be still the regular resolver. The simple resolver can be
>> enabled in etc/org.apache.karaf.features.cfg.
>>
>> 4. Spec features and cleanup
>> As already discussed, I would like to remove the lib/jdk9plus folder and
>> all spec packages from etc/jre.properties to use spec features instead.
>> That will give us more control in the specs version and support of JDK.
>>
>> 5. ConfigAdmin persistence repository overwrite with env var
>> It will be possible now to overwrite configuration with env var. For
>> instance, if you have a property foo in my.config pid, you will be able to
>> overwrite this property with -Dmy.config:foo=bar at bootstrap.
>>
>> If you agree, I would like to include those improvements in coming release
>> (4.2.9 and 4.3.0.RC2).
>>
>> Regards
>> JB
>>
>>
>>

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