Forgot to mention that is just an experiment for now and contributions
are welcomed via pull requests.

On Fri, Jan 27, 2012 at 3:07 PM, Alin Dreghiciu <adreghi...@gmail.com> wrote:
> Did you guys considered using
> https://docs.sonatype.org/display/Nexus/Nexus+OSGi+Experimental+Features+-+Bundle+Maker
> I wrote an email some months ago about it on this list. Basically the
> result is the same. It generates the bundles on the fly based on an
> autogenerated recipe or on a custom made one for cases when default is
> not enough.
> I think the test server is down but I can put it back on if you wanna
> try it out.
> In plus with the adition of OSS OBR and P2 Nexus plugins we get the
> obr xml and p2 repository for all of this generated bundles.
>
> On Fri, Jan 27, 2012 at 12:55 PM, David Bosschaert
> <david.bosscha...@gmail.com> wrote:
>> Hi all,
>>
>> I think providing such an OSGi bundle repository is a really useful
>> thing to do, and I would be more than happy to help if help is needed
>> here.
>>
>> Just a couple of thoughts
>> * I think just providing the poms diminishes the value, even though
>> this might be more or invisible to the end user, as:
>>  1. Guillaume's point that bundles with the same bsn + version aren't
>> 100% the same when you compare the bytes, this might exclude certain
>> uses
>>  2. Creating bundles on-the-fly on the server when they are requested
>> can cause serious server load issues and therefore may not scale well
>> * I think it would be good to ultimately provide an OSGi OBR view over
>> this repository as well. This is specified in OSGi RFC 112 [1] and
>> would allow querying for artifacts based on their metadata (i.e. I
>> want a bundle that exports x version y).
>>
>> Overall, I'm quite excited by this proposal!
>>
>> David
>>
>> [1] There is a draft available here:
>> http://www.osgi.org/download/osgi-early-draft-2011-09.pdf should be
>> available as a public spec sometime in March.
>>
>> On 27 January 2012 10:04, Glyn Normington <glyn.norming...@gmail.com> wrote:
>>> About on-the-fly-bundleisation, I really liked that idea. If there was some
>>> way of providing manifest templates which could influence the process to
>>> produce the desired manifest in cases where the default is insufficient
>>> (e.g. when the bundle really needs to be a fragment of a closely related
>>> bundle, essentially part of point 1 below) that would be ideal IMO.
>>>
>>> Care would need to be taken about versioning though, because it would be
>>> possible to change the manifest template and cause the next on-the-fly
>>> result for the corresponding bundle to be different from the previous result
>>> but have the same version.
>>>
>>> Regards,
>>> Glyn
>>>
>>> On 27 Jan 2012, at 09:49, Toni Menzel wrote:
>>>
>>> So to be clear: The idea is to host (on Github) poms under the
>>> org.ops4j.pax.tipi flag that:
>>>
>>> 1. osgified imports/export only?
>>> Or do the more complex Osgi-fication as well: Activators, building
>>> composites that work well. What i mean is: its a good start to have things
>>> with proper headers in manifest and in centralrepo but its usually just the
>>> start of things. The real pain is to actually make it work. One example i am
>>> working on right now is the Spring Data Neo4J stuff (famous for SDN). What
>>> is really needed is a working example in concise code. This is good for
>>> starters (they don't have to figure out the really evil details) as well as
>>> we can provide much higher quality components with confidence via tipi.
>>>
>>> This is a different kind of effort - its much more difficult. I just see
>>> little value in ramping up artifacts under Pax Tipi that resolve well on the
>>> package level but actually do not work because of crappy resource loading
>>> (namespace-less xml resources for example).
>>> With Exam & Tinybundles we might have some candidates to create proof of
>>> concept examples for the known-to-be-problematic cases (SDN for example)
>>> In Tipi we could create facilities to writing such "proof of concepts"
>>> easily.
>>>
>>> 2. Is this just about OSGi ?
>>> I know, Pax is the OSGi umbrella here. But i also have other candidates in
>>> mind that i am missing in Central: Akka (akka.io) for example. Yes, Akka has
>>> proper manifest headers already, but i am speaking of it as a library, not
>>> as a bundle right now.
>>> So, also pick the non OSGi guys?
>>>
>>> 3. Alin showed an on-the-fly bundleization service some time ago
>>> I think this was a Nexus plugin installed on Sonatype hosts. The idea was to
>>> grab Central artifacts (or from wherever ) and have them bundleized on the
>>> server-side. This is of cause very similar to pax-url-wrap but with the
>>> difference that the server side knows about that step and can possibly
>>> "learn" and provide better manifests over time automatically. This may to
>>> too much (uncontrollable?) magic, also with the ideas in [1] in mind.
>>> Anyway, perhaps Alin can comment on the whereabouts?
>>> Maybe we can use something from it for Tipi ?
>>>
>>> 4. As a last thought, i need to re-address the origin of the problem, Harald
>>> wrote "In an ideal world this would not be necessary". But we are not in an
>>> ideal world, so we slam a "bug fix" onto this not-ideal world.
>>>
>>> I am now thinking what can help to make the world more ideal ?
>>> Why is eclipse not pushing to Central ?  -> Strange since Sonatypes heavy
>>> involvement..
>>> Am i correct that we want to fix to (unrelated!) things with Tipi:
>>> 4.1 Send missing artifacts to Central (not necessarily OSGi)
>>> 4.2 OSGify non OSGi artifacts on a truly open platform (OPS4J)
>>> 4.3 Provide, simple, isolated proof of concept examples (SDN)
>>> 4.4 Have a feedback pipe to the original projects (similar to the
>>> oss.sonatype.org program using Jira) assisting them to make the bug fixes we
>>> created (see 4.1,4.2 and 4.3) go away.
>>>
>>> So the idea goal is 4.4: Tipi projects shrink again over time because
>>> original projects have adopted the "bug fixes" into their own environment.
>>>
>>> Sound too good to be just called Pax Tipi.
>>>
>>> Wdyt ?
>>>
>>> Toni
>>>
>>>
>>> On Fri, Jan 27, 2012 at 9:24 AM, Glyn Normington <glyn.norming...@gmail.com>
>>> wrote:
>>>>
>>>> This sounds like a great proposal if the licensing issues can be ironed
>>>> out. Certainly SpringSource/VMware have been exploring ways to transition
>>>> the SpringSource Enterprise Bundle Repository (EBR, [i]) to a community
>>>> model for some time, but discussions with other vendors are taking a while,
>>>> mainly due to licensing issues as you might expect.
>>>>
>>>> Please note that the build and manifest template files from the EBR are
>>>> available on github ([ii]) should the community want to populate Tipi with
>>>> equivalents of the bundleised 3rd party JARs in the EBR so they can
>>>> reasonably claim Tipi has superseded the EBR.
>>>>
>>>> Regards,
>>>> Glyn
>>>> [i] http://ebr.springsource.com/repository/app/
>>>> [ii] https://github.com/glyn/bundlerepo
>>>>
>>>> On 26 Jan 2012, at 19:34, Harald Wellmann wrote:
>>>>
>>>> > In an ideal world, there would be no need for this...
>>>> >
>>>> > Every open source Java project would build OSGi bundles instead of plain
>>>> > old JARs and push them to The Central Repository (aka Maven Central).
>>>> >
>>>> > But the harsh reality is, Maven-based OSGi projects often require
>>>> > third-party libs that are not mavenized or osgified, or neither.
>>>> >
>>>> > Some notorious examples that affect Pax Exam:
>>>> > - JUnit 4.10 is in Maven Central, but not osgified
>>>> > - Equinox 3.7.1 is OSGi (obviously...) but not in Maven Central.
>>>> >
>>>> > Of course, the preferred approach is submitting enhancement or pull
>>>> > requests to the original developers and hoping they'll do their homework
>>>> > within reasonable time.
>>>> >
>>>> > Sometimes this works (example: TestNG [1]), sometimes it doesn't
>>>> > (examples: JUnit [2][3], Equinox [4]).
>>>> >
>>>> > So what I'm proposing is similar to Apache Servicemix Bundles or
>>>> > SpringSource Enterprise Bundle Repository, but with a big difference - 
>>>> > the
>>>> > OPS4J low-to-no barrier philosophy: if you want to get a job done, just 
>>>> > do
>>>> > it and share it.
>>>> >
>>>> > In essence, Pax Tipi should contain nothing but POMs or other build
>>>> > scripts, it's only about repackaging existing libraries and pushing them 
>>>> > to
>>>> > Central using the existing OPS4J infrastructure.
>>>> >
>>>> > We'd have to set up some naming and versioning standards, but that's
>>>> > about it.
>>>> >
>>>> > What do you think?
>>>> >
>>>> > [1] https://github.com/cbeust/testng/pull/86
>>>> > [2] https://issuetracker.springsource.com/browse/EBR-803
>>>> > [3] https://github.com/KentBeck/junit/pull/368
>>>> > [4] https://bugs.eclipse.org/bugs/show_bug.cgi?id=365798
>>>> >
>>>> > Cheers,
>>>> > Harald
>>>> >
>>>> >
>>>> >
>>>> > _______________________________________________
>>>> > general mailing list
>>>> > general@lists.ops4j.org
>>>> > http://lists.ops4j.org/mailman/listinfo/general
>>>>
>>>>
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>>>
>>>
>>>
>>>
>>> --
>>> Toni Menzel Source
>>>
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>
>
> --
> Alin Dreghiciu
> Software Developer
> My profile: http://www.linkedin.com/in/alindreghiciu
> My blog: http://adreghiciu.wordpress.com
> http://sonatype.com - Sonatype - The Maven Company
> http://www.ops4j.org - New Energy for OSS Communities - Open
> Participation Software.



-- 
Alin Dreghiciu
Software Developer
My profile: http://www.linkedin.com/in/alindreghiciu
My blog: http://adreghiciu.wordpress.com
http://sonatype.com - Sonatype - The Maven Company
http://www.ops4j.org - New Energy for OSS Communities - Open
Participation Software.

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