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From Lance Frohman <lfroh...@gmail.com>
Subject Re: repoAdmin.discoverResources() parameters
Date Tue, 06 Dec 2011 17:04:44 GMT
Thanks, we would rather do things the "correct OSGi" way.
How do applications normally handle this?

On Mon, Dec 5, 2011 at 9:33 PM, Richard S. Hall <heavy@ungoverned.org>wrote:

> There really is no way to do this, since (if I understand correctly) you
> are trying to reverse the capability/requirement model.
> Normally, you perform a query to find matching capabilities. From what I
> understand, you want to perform a query to find matching requirements.
> A similar situation exists for fragments, since the host doesn't know
> about fragments and fragments have a dependency on the host. This was one
> of the reasons behind the not-fully-baked "extends" concept in OBR. The
> idea with extends is that you could find all bundles that "extend" another
> bundle. Still, to do this, you had to manually go through all bundles and
> check for "extends" requirements and then determine if it extended your
> target bundle. Not super great, but it works.
> So, you'll likely have to do something similar here. Manually go through
> all bundles and determine which ones are importing your package.
> An alternative, is to add a "IGB plugin" capability to each of your
> plugin's OBR resource description, which would contain the version as an
> attribute. Then you could easily query for all "IGB plugin" capabilities.
> -> richard
> On 12/5/11 15:07, Lance Frohman wrote:
>> My group is using Apache Felix for plugins for a swing application (IGB),
>> that has versions released every few months
>> and we need to match the plugins to the appropriate versions of IGB. We
>> are
>> using OBR, but I don't know what parameters
>> to give the repoAdmin.discoverResources() inside IGB to only receive the
>> plugins for that version. IGB has a version number,
>> currently 6.7.0, and in all the plugins, I have an Import-Package for one
>> of the IGB packages, with the version suffix, like:
>> Import-Package: com.affymetrix.common;version=**"6.6.0",
>> now the statement is
>> Resource[] allResourceArray =
>> repoAdmin.discoverResources("(**symbolicname=*)");
>> can anyone tell me what to use as the parameter to only return bundles
>> with
>> package com.affymetrix.common fulfilling the current version of the
>> application?
>> (the repositories are at
>> http://bioviz.org/igbserver/
>> http://research-pub.gene.com/**igb_plugins/<http://research-pub.gene.com/igb_plugins/>
>> http://research-pub.gene.com/**igb_plugins/development/<http://research-pub.gene.com/igb_plugins/development/>
>> )
>> thanks,
>> Lance
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