David,

Have you had chance to take a look at the changes mentioned in ARIES-353?

I can rename the main SPI-Fly project to something else than
spi-fly-core/org.apache.aries.spifly.core and send updated pom.xml
files if you like :).

Thanks,
  Bartek

2010/7/8 Bartosz Kowalewski <[email protected]>:
> Hi David,
>
> I've just created ARIES-353. It covers initial changes to be applied
> to to the SPI-Fly project structure. These changes transform SPI-Fly
> into a multi-module project. Once these changes are in SVN, I'll start
> contributing itests and other improvements.
>
> Thanks,
>  Bartek
>
> 2010/6/29 David Bosschaert <[email protected]>:
>> Hi Bartek,
>>
>> On 25 June 2010 22:32, Bartosz Kowalewski <[email protected]> 
>> wrote:
>>> Hi David,
>>>
>>> I managed to make Eclipse Aspects/Weaving work inside a Pax Exam test.
>>> I can contribute this simple project with integration tests (of course
>>> after applying some clean-up) if you find it useful. I think that
>>> SPI-Fly requires a change in project structure anyway - it needs a
>>> parent project and a second subproject - spifly-itests.
>>
>> That would be greatly appreciated!
>>
>>> Some more comments on the SPI-Fly + AOP topic:
>>> 1. My understanding is that there's no single uniform mechanism for
>>> supporting AspectJ load-time weaving that would work in all OSGi
>>> containers. Due to the specifics of the OSGi world, container-specific
>>> mechanism are required. Am I right? For Equinox it's Equinox
>>> Aspects/Weaving and there's no such mechanism for Felix. This seems to
>>> be a really important disadvantage of using LTW in SPI-Fly.
>>
>> Yes - there is currently no general mechanism to support load-time
>> weaving in OSGi but this is something being worked on in the OSGi
>> Alliance so I expect that it will be possible in a standardized way in
>> the future.
>>
>>> 2. The problem with adding aspects to bundles is still unresolved. I'm
>>> not sure if there's a clean solution for adding aspects to consumer
>>> bundles (or bundles that provide the API). Of course some ugly
>>> solutions can be applied (like my original headache causing fragment
>>> based one), but these are more intrusive that we might wish.
>>
>> Yes, this is still an open question. Maybe something for the AspectJ
>> mailing list. I will post there.
>>
>>> 3. I started implementing support for SPI-Consumer and SPI-Provider
>>> headers that contain some data helpful whne running the aspect, i.e.
>>> api name and provider name/version for the Provider header, and some
>>> mechanism to define consumer constraints/hints in the SPI-Consumer
>>> header that would help the aspect that will tweak the thread context
>>> classloader to make decisions about providers. These mechanisms are
>>> similar to the ones that you described in one of your e-mails.
>>> However, I feel that we should first solve #1 and #2 above and only
>>> then it makes sense to continue with the implementation.
>>
>> cool stuff - looking forward to your contributions :)
>>
>> Best regards,
>>
>> David
>>
>

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