[infinispan-dev] help with Infinispan OSGi

Luca Stancapiano jedim at vige.it
Mon Dec 9 04:39:55 EST 2013


Hi Randall...... there is a opened issue on infinispan:

https://issues.jboss.org/browse/ISPN-800

It should be ok. It need only a simple test.

> I’d love to see this work proceed for Infinispan, since we want to do the
> same thing for ModeShape, which uses (but does not hide or encapsulate)
> Infinispan.
>
>
> On Dec 6, 2013, at 10:56 AM, Brett Meyer <brmeyer at redhat.com> wrote:
>
>> Sorry, forgot the link:
>>
>> [1] https://hibernate.atlassian.net/browse/HHH-8214
>>
>> Brett Meyer
>> Software Engineer
>> Red Hat, Hibernate ORM
>>
>> ----- Original Message -----
>> From: "Brett Meyer" <brmeyer at redhat.com>
>> To: "Randall Hauch" <rhauch at redhat.com>, "infinispan -Dev List"
>> <infinispan-dev at lists.jboss.org>
>> Cc: "Pete Muir" <pmuir at redhat.com>, "Steve Jacobs" <sjacobs at redhat.com>
>> Sent: Friday, December 6, 2013 11:51:33 AM
>> Subject: Re: [infinispan-dev] help with Infinispan OSGi
>>
>> Randall, that is *definitely* the case and is certainly true for
>> Hibernate.  The work involved:
>>
>> * correctly resolving ClassLoaders based on the activated bundles
>> * supporting multiple containers and contexts (container-managed JPA,
>> un-managed JPA/native, etc.)
>> * fully supporting OSGi/Blueprint services (both for internal services
>> as well as externally-registered)
>> * bundle scanning
>> * generally working towards supporting the dynamic nature
>> * full unit-tests with Arquillian and an OSGi container
>>
>> It's a matter of holistically supporting the "OSGi way" (for better or
>> worse), as opposed to simply ensuring the library's manifest is correct.
>>
>> There were a bloody ton of gotchas and caveats I hit along the way.
>> That's more along the lines of where I might be able to help.
>>
>> I'm even more interested in this effort so that we can support
>> hibernate-infinispan 2nd level caching within ORM.  On the first
>> attempt, I hit  ClassLoader issues [1].  Some of that may already be
>> resolved.
>>
>> The next step may simply be giving hibernate-infinispan another shot and
>> correcting things as I find them.  In parallel, feel free to let me know
>> if there's anything else!  ORM supports lots of OSGi-enabled extension
>> points, etc. that are powerful for users, but obviously I don't have the
>> Infinispan knowledge to know what would be necessary.
>>
>> Thanks!
>>
>> Brett Meyer
>> Software Engineer
>> Red Hat, Hibernate ORM
>>
>> ----- Original Message -----
>> From: "Randall Hauch" <rhauch at redhat.com>
>> To: "infinispan -Dev List" <infinispan-dev at lists.jboss.org>
>> Cc: "Pete Muir" <pmuir at redhat.com>, "Brett Meyer" <brmeyer at redhat.com>
>> Sent: Friday, December 6, 2013 10:57:23 AM
>> Subject: Re: [infinispan-dev] help with Infinispan OSGi
>>
>> Brett, correct me if I’m wrong, but isn’t there a difference in making
>> some library *work* in an OSGi environment and making that library
>> *naturally fit well* in an OSGi-enabled application? For example, making
>> the JAR’s be OSGi bundles is easy and technically makes it possible to
>> deploy a JAR into an OSGi env, but that’s not where the payoff is. IIUC
>> what you really want is a BundleActivator or Declarative Services [1] so
>> that the library’s components are readily available in a naturally-OSGi
>> way.
>>
>> [1]
>> http://blog.knowhowlab.org/2010/10/osgi-tutorial-4-ways-to-activate-code.html
>>
>> On Dec 6, 2013, at 7:30 AM, Mircea Markus <mmarkus at redhat.com> wrote:
>>
>>> + infinispan-dev
>>>
>>> Thanks for offering to look into this Brett!
>>> We're already producing OSGi bundles for our modules, but these are not
>>> tested extensively so if you'd review them and test them a bit would be
>>> great!
>>> Tristan can get you up to speed with this.
>>>
>>>
>>>>> Sanne/Galder/Pete,
>>>>>
>>>>> Random question: what's the current state of making Infinispan OSGi
>>>>> friendly?  I'm definitely interested in helping, if it's still a
>>>>> need.  This past year, I went through the exercise of making
>>>>> Hibernate work well in OSGi, so all of challenges (read: *many* of
>>>>> them) are still fairly fresh on my mind.  Plus, I'd love for
>>>>> hibernate-infinispan to work in OSGi.
>>>>>
>>>>> If you're up for it, fill me in?  I'm happy to pull everything down
>>>>> and start working with it.
>>>>>
>>>>> Brett Meyer
>>>>> Software Engineer
>>>>> Red Hat, Hibernate ORM
>>>>>
>>>>
>>>
>>> Cheers,
>>> --
>>> Mircea Markus
>>> Infinispan lead (www.infinispan.org)
>>>
>>>
>>>
>>>
>>>
>>> _______________________________________________
>>> infinispan-dev mailing list
>>> infinispan-dev at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/infinispan-dev
>>
>
>
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-- 
Luca Stancapiano
javaee consultant
skype: flashboss62
mobile: +393381584484


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