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From K Fung <kfung4...@gmail.com>
Subject Re: How to contribue a CXF JAX-RS OSGi Sample?
Date Sat, 12 Nov 2011 06:28:14 GMT
Hi Sergey,

Nope, you haven't discouraged me :-) It was good feedback and I'm taking it
in for my next round of revision.

Unfortunately, I haven't had a lot of time to put into it but I should be
able to make another pass at it toward the end of November. I'm keen on
continuing to work on this as something to deliver in CXF.

One feedback that I did have was instead of using BundleListener to listen
for incoming bundles and registering JAX-RS things, do you think it makes
sense for us to use OSGI declarative services (e.g., the Maven SCR bundle)
instead to have the runtime automatically do this
registration/deregistration of resources? However, this would be considered
more of an enhancement to the existing CXF feature set, instead of
something that illustrates how to use JAX-RS, right?

Cheers,
kl


On Fri, Nov 11, 2011 at 9:03 AM, Sergey Beryozkin <sberyozkin@gmail.com>wrote:

> Hi,
>
> how is your demo going, hope I haven't discouraged with my comments :-)
>
> Sergey
>
>
> On 19/10/11 10:28, Sergey Beryozkin wrote:
>
>> By the way, at the next stage we can also probably create the Activator
>> part in the jaxrs fronentend/osgi - this can be optionally enabled and
>> what it will do it will probably do BundleListener and check which ones
>> contain Applications, as well as do ServiceTracker on Application,
>> MessageReaderWriter/Reader services, etc
>>
>> Cheers, Sergey
>>
>> On 18/10/11 14:18, Sergey Beryozkin wrote:
>>
>>> Hi
>>>
>>> Thanks for this patch, I think it's a nice interesting example, shows
>>> the bare Activator and ServiceTracker in action...
>>>
>>> Please see comments inline
>>>
>>> On 18/10/11 05:28, K Fung wrote:
>>>
>>>> Hi all,
>>>>
>>>> I've uploaded the initial code sample to
>>>> https://issues.apache.org/**jira/browse/CXF-3859<https://issues.apache.org/jira/browse/CXF-3859>to
garner the first
>>>> round of
>>>> feedback. Per request, it includes a README to explains how it works.
>>>>
>>>> In particular, I'm looking feedback for the following issues:
>>>>
>>>> - What's your opinion to using the Application model instead of
>>>> JAXRSServerFactoryBean directly?
>>>>
>>>
>>> One thing I noted that you introduce a SampleServlet, but
>>> CXFNonSpringJAXRSServlet can handle it itself. CXFNonSpringJAXRSServlet
>>> will also make sure Application instances can get JAX-RS contexts
>>> injected if needed and Applications themselves can be injected into
>>> resource classes which is all has to be supported in JAX-RS 1.1.
>>> Using Applications is probably better for the example, but using
>>> JAXRSServerFactoryBean will provide more options (such as applying
>>> external models to non-annotated classes).
>>>
>>> Actually, I'm seeing the READme, CXFNonSpringJAXRSServlet should still
>>> be capable though, as it delegates via ResourceUtils to load the
>>> Application classes, that should work ?
>>>
>>>
>>>  - Is it okay not to use the latest Eclipse Equinox? I'm not using the
>>>> latest
>>>> Eclipse Equinox at the moment because 1) it has issues with Felix due
>>>> to use
>>>> of generics and 2) the required services bundle is not registered in
>>>> Maven
>>>>
>>>
>>> probably OK for the purpose of the demo, perhaps README can clarify
>>> that. What about those java.net and snapshots repositories though, can
>>> we avoid using them ?
>>>
>>>  - What do you think about using Apache Felix's File Install to install
>>>> the
>>>> bundles?
>>>>
>>>
>>> Why not, Karaf is probably using that one too
>>>
>>>  - Does the README require further enhancement or more description or
>>>> perhaps
>>>> more documentation is necessary within the sample itself?
>>>>
>>>>
>>> READMe is fine but I'm wondering if we should make it sound a bit more
>>> optimistic :-), we just have JAX-RS demos working in Karaf :-). In the
>>> introduction I'd only have:
>>>
>>> "This sample demonstrates the minimal amount of bundles necessary to get
>>> a sample that uses CXF's JAX-RS implementation to work correctly in most
>>> OSGI environments", etc...
>>>
>>>
>>>  Before I declare it fit for prime time, I would like to work on the
>>>> following things:
>>>>
>>>> - Check if sample runs correctly on Java 5
>>>> - Check if sample should be compiled with other samples when running
>>>> maven
>>>> on the parent pom
>>>>
>>>
>>> Please do...
>>>
>>>  - Provide a run.sh sample (in addition to the current run.bat)
>>>>
>>>
>>> Can we make that run using a maven profile ? Instead of having
>>> run.bat/sh ? may be you can copy & paste the relevant "server" profile
>>> from jaxrs/spring-security or basic
>>>
>>>  - Provide an enhancement that includes the use of Apache Abdera to
>>>> show the
>>>> (optional) import of the Abdera bundles
>>>>
>>>>  I think the latest Abdera bundle is a bit broken, recall Dan mentioning
>>> it - may've been fixed already. I would not be worried about Abdera in
>>> OSGI at the moment.
>>>
>>> Actually see that you exclude wsdl4j which does indicate
>>>
>>> https://issues.apache.org/**jira/browse/CXF-3021<https://issues.apache.org/jira/browse/CXF-3021>
>>> may've been fixed after all, re the deps on the server side
>>>
>>>  I look forward to hearing what all of you have to say ... the good,
>>>> the bad,
>>>> and the ugly :-)
>>>>
>>>>
>>> Great stuff, thanks :-).
>>> One possible enhancement to the sample, get plain WebClient consuming
>>> the published service, using main() or from another bundle, whatever is
>>> simpler
>>>
>>> Sergey
>>>
>>>  Regards,
>>>> kl
>>>>
>>>>
>>>
>>
>

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