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From Jeremy Hughes <hugh...@apache.org>
Subject Re: {DISCUSS] Home for Daytrader sample leveraging Aries
Date Tue, 12 Jan 2010 21:47:45 GMT
+1 to putting it under samples at least for now!

Jeremy

2010/1/12 Alasdair Nottingham <not@apache.org>:
> I would stick with putting it under samples for now. We can always move it
> later and we have not discussed releases yet, so we cannot know what
> implications there are for release if it is under samples.
>
> Alasdair
>
> On 12 Jan 2010, at 19:17, Joe Bohn <joebohn@gmail.com> wrote:
>
>>
>> Good points Lin.  Perhaps we should consider another location under Aries
>> trunk ... or we can check it in initially under trunk/samples and move it if
>> it proves to be an issue.
>>
>> Regarding the itest ... sure, we should give that some consideration. I'd
>> personally have to understand the current itests better and the capabilities
>> before I could assert that daytrader could be added in for additional
>> testing.
>>
>> Joe
>>
>>
>> Lin Sun wrote:
>>>
>>> Hi Joe,
>>> I think it makes sense to have the new daytrader in apache aries.
>>> Just wondering if you want to have it under trunk/samples or have a
>>> separate directory for daytrader so that you could release daytrader
>>> separately like daytrader in Geronimo.   Another advantage of doing
>>> this separately is that people can easily build the samples without
>>> building daytrader which i know sometimes we have trouble to build due
>>> to its complexity.
>>> Also wondering if it is possible to use the daytrader sample as part
>>> of our itest after moving it over to apache aries.
>>> Thanks
>>> Lin
>>> On Mon, Jan 11, 2010 at 2:57 PM, Joe Bohn <joebohn@gmail.com> wrote:
>>>>
>>>> Greetings all,
>>>>
>>>> I've been working on a version of the Geronimo Daytrader performance
>>>> benchmark to leverage the enterprise OSGi application programming model.
>>>> I've been doing this work in my sandbox under Apache Geronimo
>>>> (https://svn.apache.org/repos/asf/geronimo/sandbox/jbohn with the most
>>>> recent changes under daytrader-bp-new).
>>>>
>>>> I'd like to find a more permanent location for this work and get it out
>>>> of
>>>> my sandbox.
>>>>
>>>> Here is a brief description of what I have thus far in sandbox:
>>>> - A restructured Daytrader to support an enterprise OSGi application
>>>> programming model including blueprint, web container, jndi, jpa, etc...
>>>> - To further support this programming model I have also reorganized the
>>>> classes, packages, and bundles.
>>>> - Simplification and removal of content not yet available in the
>>>> enterprise
>>>> OSGi application programming model such as EJB support and removal of
>>>> Geronimo specific artifacts such as the plugins.
>>>> - Refactoring the way components gain knowledge of each other and
>>>> interact
>>>> to support blueprint concepts such as reference list and reference
>>>> listeners.
>>>> - Support for just two different persistence mechanisms - direct JDBC
>>>> and
>>>> direct JPA which are currently included in the enterprise OSGi
>>>> application
>>>> programming model.
>>>> - packaging using the Aries Application concepts.
>>>>
>>>> After seeing the recently introduced Apache Aries Blog Sample and its
>>>> assembly for Equinox it encouraged me to do something similar for
>>>> Daytrader
>>>> so that I could get this running with Apache Aries.  I now have a
>>>> further
>>>> subset of my sandbox work that could be added as a peer to the
>>>> blog-sample
>>>> which includes just the JDBC persistence mechanism, is hard-wired to
>>>> Derby,
>>>> and includes an Equinox assembly to run it. This is not currently in any
>>>> svn
>>>> because I did it on my local repository under aries/trunk/samples with
>>>> hopes
>>>> of checking it in there.
>>>>
>>>> I think it is time to get this code to a better home and I'm currently
>>>> thinking that aries/trunk/samples is a good place to start.  For now I
>>>> would
>>>> check in just the version with JDBC and the equinox assembly. However, I
>>>> would extend this with other capabilities already in my sandbox for JPA
>>>> persistence, the Aries Application packaging, etc... as these become
>>>> available in Aries.
>>>>
>>>> I'm interested if others agree with this approach, if it seems like a
>>>> worthwhile endeavor, and if it is acceptable to include this code under
>>>> aries/trunk/samples.
>>>>
>>>> Here are the current discussion points and concerns as I see them:
>>>> 1) Duplication of code between Geronimo and Aries if I check it into
>>>> Aries.
>>>> However, the code is already split from the JavaEE Daytrader version and
>>>> I
>>>> doubt it would be possible to fully merge the code base and keep both
>>>> the
>>>> JavaEE and Aries versions working from a common code base without
>>>> cluttering
>>>> up the code with environment checks.   So, even if we keep it all in
>>>> Geronimo I think we will still end up with multiple code streams.
>>>> 2) The Equinox assembly version for DayTrader currently doesn't exploit
>>>> anything directly in Apache Geronimo.  It depends upon the pax web
>>>> container
>>>> among other things.  It is certainly my intention that this should run
>>>> on
>>>> Geronimo when Geronimo supports osgi rfc 66 among other things.  However
>>>> it
>>>> seems strange to include this in Geronimo at this point in time.
>>>> 3) Daytrader has always supported running in multiple web containers.  I
>>>> think moving this enterprise OSGi application version of Daytrader to
>>>> Aries
>>>> further supports this goal and ensures that it won't become too tightly
>>>> coupled to Geronimo.
>>>>
>>>> My apologies for the length of this description.  Please let me know
>>>> your
>>>> thoughts - especially if you have any concerns with checking this
>>>> version of
>>>> Daytrader in under
>>>> https://svn.apache.org/repos/asf/incubator/aries/trunk/samples
>>>>
>>>> Thanks,
>>>> Joe
>>>>
>>>>
>>
>>
>> --
>> Joe
>

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