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From "Alan D. Cabrera" <l...@toolazydogs.com>
Subject Re: Apache Portable Runtime artifacts
Date Sun, 09 Nov 2008 16:28:41 GMT
I'm going to CC the Felix project.  I'm sure their perspective will be  
very useful.

On Nov 9, 2008, at 7:57 AM, Graham Leggett wrote:

> Alan D. Cabrera wrote:
>
>> You bring up a good point in that it might be a good idea to  
>> describe the target deployments.  I'm sure that the APR team lives  
>> in a different universe than I.  You probably have to make sure  
>> that the code is general enough to run on my son's bluetooth  
>> enabled talking giraffe as well as stock Linux and Windows Vista  
>> boxes.  I'm sure the combinatorial space that you guys have to deal  
>> with is boggling.
>> I think in this case, my case, we only need to worry about a few  
>> stock configurations, e.g. Linux and Windows.  For me that would  
>> handle 99.9% of my universe.  More exotic configurations can use  
>> the naming conventions that we are currently working out and  
>> publish on an as needed basis; I don't anticipate this happening  
>> often.
>> To give some more color to what I want to do, I want to make OSGi  
>> bundles for APR.  For example, I need access to raw network  
>> sockets.  I don't want downstream users of my bundles to have to  
>> stitch by hand build runtime libraries to get my stuff to work.  In  
>> my narrow world it's inconvenient and, I believe, unnecessary.
>
> Hmmm...
>
> I think there are potentially two scenarios to be considered, the  
> first where a system installed APR is already present, and the  
> second is where APR is either not present at all, or not the version  
> you want to run.
>
> Potentially what might work is to have versions of APR that are  
> statically built, and then bundled into OSGi. Being static, there  
> would be few/no dependencies on the underlying system.
>
> Another option is to include a stub bundle that refers to a system  
> installed copy of APR. The stub bundle might be smart enough to  
> detect when the system copy of APR is either missing, or not within  
> the tolerated version range.

I think that there's something to be said about using the libraries  
that are bundled into OSGi rather than using libraries whose  
provenance is unknown.


Regards,
Alan






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