On Mon, Sep 7, 2015 at 9:25 AM, Achim Nierbeck <bcanh...@googlemail.com> wrote:
> hmm, must have overseen that sentence:
>
>>  The onl difference in
>> bundle inventory from blueprint to DS is the addition of the
>> compendium jar, which is not even loaded by loading up CXF.
>
>
> actually it's no good idea to include that, and afaik all of the felix
> bundles already provide all of the needed
> compendium packages.
> So remove that one, cause that will make trouble and that's for sure :-)

So, 'scope provided'? I'll try that before I go out for the walk.


>
> regards, Achim
>
>
> 2015-09-07 15:20 GMT+02:00 Benson Margulies <ben...@basistech.com>:
>>
>> Achim and David,
>>
>> I am not currently using the most recent felix resolver; that requires
>> building the trunk of Karaf with a patch.
>>
>> Over on the Karaf list, I'm pestering Achim with the following situation:
>>
>> I have, now, a working version of my system which is 100% blueprint.
>> (I did solve the problem which started all of this.) Nevertheless, you
>> and others make a convincing case for DS, so I decided to try to move
>> to DS.
>>
>> To start, I picked a bundle that has no use of CXF -- it just consumes
>> a service and registers a service. The service it consumes has no
>> Provide-Capability in its metadata.
>>
>>  I:
>>
>> * removed the blueprint metadata,
>> * added a dependency on the compendium jar (5.0.0)
>> * added the DS annotations
>> * added -dsannotations: * for bnd.
>>
>> In Karaf, I install the prerequisites, which have not changed. Then I
>> install the DS service. I feared that I'd get a wiring error due to
>> the Require-Capability. But I don't. Instead, Karaf (very noisily)
>> restarts the CXF bundles that are already there. The onl difference in
>> bundle inventory from blueprint to DS is the addition of the
>> compendium jar, which is not even loaded by loading up CXF.
>>
>> If I then install an (unchanged) bundle that uses blueprint and
>> consumes the DS service, I get an NPE in the Karaf resolver.
>>
>> I think I'm going to go take a walk and then try to produce an open
>> source test case for this hysteria.
>>
>> --benson
>>
>>
>>
>>
>>
>> On Mon, Sep 7, 2015 at 9:06 AM, Achim Nierbeck <bcanh...@googlemail.com>
>> wrote:
>> > The felix-resolver does actually look for those Require-Capabilities and
>> > throws an error if they can't be met.
>> > Now karaf uses this resolver to resolve all features, and therefore will
>> > run
>> > into the same issue when installing a feature as installing a bundle.
>> >
>> > regards, Achim
>> >
>> >
>> > 2015-09-07 15:04 GMT+02:00 David Jencks <david_jen...@yahoo.com>:
>> >>
>> >> I think you mean @Reference?
>> >>
>> >> I was a bit worried about including those Require-Capability for
>> >> services,
>> >> but the people on the spec committee  who understand resolving more
>> >> than me
>> >> said that it would not be used at runtime but only to sort of plan what
>> >> set
>> >> of bundles would be a good idea to run together.  I wouldn’t rule out
>> >> this
>> >> causing the NPE however.  Do you/Karaf have the latest felix resolver
>> >> installed?
>> >>
>> >> BTW Felix DS includes a gogo and a normal shell command.   I wouldn’t
>> >> think this would cause a restart — it seems to me that this would
>> >> indicate a
>> >> non-osgi-friendly console — but I don’t know how the karaf console is
>> >> set
>> >> up.
>> >>
>> >> hope you continue making progress :-)
>> >>
>> >> david jencks
>> >>
>> >> > On Sep 7, 2015, at 8:52 AM, Benson Margulies <ben...@basistech.com>
>> >> > wrote:
>> >> >
>> >> > David, I note that the use of an @Requirement leads to a
>> >> > Require-Capability in the manifest. In one case, I need to consume a
>> >> > service which is registered by a boring old Activator class in a
>> >> > bundle I do not control, and which does not have the corresponding
>> >> > Provide-Capability. I haven't seen a wiring error yet, but this may
>> >> > be
>> >> > related to an NPE in the Karaf resolver that afflicts me.
>> >> >
>> >> >
>> >> > On Sun, Sep 6, 2015 at 9:46 PM, Benson Margulies
>> >> > <ben...@basistech.com>
>> >> > wrote:
>> >> >> So, the good news is that I read the spec, I followed you hints, and
>> >> >> I
>> >> >> converted a simple bundle of mine from blueprint to DS.
>> >> >>
>> >> >> The bad news is that Karaf 4.0.1 was unable to start up with a
>> >> >> combination of aries-blueprint and scr enabled. I am going to see if
>> >> >> the Karaf folks can give me a path through that before I try
>> >> >> converting _all_ my services all at once.
>> >>
>> >
>> >
>> >
>> > --
>> >
>> > Apache Member
>> > Apache Karaf <http://karaf.apache.org/> Committer & PMC
>> > OPS4J Pax Web <http://wiki.ops4j.org/display/paxweb/Pax+Web/> Committer
>> > &
>> > Project Lead
>> > blog <http://notizblog.nierbeck.de/>
>> > Co-Author of Apache Karaf Cookbook <http://bit.ly/1ps9rkS>
>> >
>> > Software Architect / Project Manager / Scrum Master
>> >
>
>
>
>
> --
>
> Apache Member
> Apache Karaf <http://karaf.apache.org/> Committer & PMC
> OPS4J Pax Web <http://wiki.ops4j.org/display/paxweb/Pax+Web/> Committer &
> Project Lead
> blog <http://notizblog.nierbeck.de/>
> Co-Author of Apache Karaf Cookbook <http://bit.ly/1ps9rkS>
>
> Software Architect / Project Manager / Scrum Master
>

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