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From "Bartosz Kowalewski (JIRA)" <>
Subject [jira] Updated: (ARIES-373) Sample implementention of AspectJ-based SPI mechanisms for SPI-Fly
Date Sun, 12 Sep 2010 20:04:34 GMT


Bartosz Kowalewski updated ARIES-373:

    Attachment:     (was: org.aspectj.weaver-

> Sample implementention of AspectJ-based SPI mechanisms for SPI-Fly
> ------------------------------------------------------------------
>                 Key: ARIES-373
>                 URL:
>             Project: Aries
>          Issue Type: Improvement
>         Environment: SPI-Fly
>            Reporter: Bartosz Kowalewski
>         Attachments: aries-373-20100912.patch, aries-373-updated.patch, ARIES-373.patch
> David Bosschaert some time ago contributed a set of Equinox Aspects-based examples showing
how to use aspects to make SPI work inside an OSGi container. I promised to contribute an
enhanced version of these mechanisms and integrate these into SPI-Fly /Maven projects, Pax
Exam, etc./. I'll attach a patch with those changes in a moment. 
> Few important notes:
> 1. This is not intended to be committed directly to Aries SVN. The only purpose of this
patch is to provide initial impl that could be used when doing additional experiments and
evaluation. The patch is dirty, I was in hurry when doing it and there are lots of ugly pieces
of code inside :). If we decide to go with this approach, I'll prepare a clean patch once
I'm back from vacation - in two weeks' time.
> 2. The problems that were identified in the discussion about using AspectJ in SPI-Fly
haven't been resolved yet. This includes (but is not limited to): 
> - being tightly coupled to Equinox; this piece of code is based on Equinox Aspects/Weaving;
this will not work wit any other container
> - inability to tell AspectJ to run an aspect on behalf of other bundle; each bundle that
wants to use these new features, needs to contain an aspect and other settings like a Require-Bundle
> 3. This patch introduces a SPI-Consumer header and enhances the SPI-Provider header.
A Pax Exam test show how to use this new functionality once you copy the aspect to your bundle
and configure Require-Bundle header.
> 4. I haven't found the latest version of Equinox Weaving in any of publicly available
Maven repos. That is why, these libraries will need to be copied manually to the itests project
(to the weaverBundles subdirectory). I'll attach these bundles to this JIRA.
> This patch is huge, so I guess there might some issues with applying it. If you have
problems with that, let me know and I'll try to generate it again.

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