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From Sergey Beryozkin <sberyoz...@gmail.com>
Subject Re: Activators for individual frontends
Date Tue, 20 Dec 2011 22:46:20 GMT
On 20/12/11 19:04, Daniel Kulp wrote:
> On Monday, December 19, 2011 10:35:07 AM Sergey Beryozkin wrote:
>> Hi KL, All,
>>
>> On 16/12/11 22:34, K Fung wrote:
>>>> In 2.5.2 on later we can think of introducing an activator into the
>>>> jaxrs>
>>> frontend so that it can discover custom Applications and providers
>>> registered as OSGI services
>>>
>>> Perhaps we should have a discussion on a separate thread to discuss how
>>> you envision seeing this? In particular, I'm wondering what's the
>>> baseline/environment you think this would be running. For example, right
>>> now there is no activator in the CXF JAX-RS bundle but what are the
>>> consequence of an activator in 2.5.2+ - can it be disabled? Do we rely
>>> on
>>> the OSGI HttpService or do we use a built-in Jetty? Can we support both?
>>>
>>> I guess you can see that I'm pretty interested in this topic :-)
>>
>> I was thinking earlier on that CXF can get a master/root activator which
>> will provide BundleContext, etc to individual activators which say JAXWS
>> and JAXRS frontends may offer; I think these activators will not act as
>> independent activators on its own, they will simply be able to react to
>> the information (BundleContext for ex) that the actual root activator
>> may offer.
>
> Well, we could have the current activator grab a list out of the current
> bundle (cxf-bundle) of other activators to instantiate and call.  For example,
> we could have a META-INF/cxf/osgi-activators.txt that is created during
> bundling (shade can do it) that the OSGiExtensionLocator thing will grab and
> then call the start/stop on it.

Super, this looks like a good way to start

> We'd only need to look in the current
> bundle.  Once we split into modules, the "core" bundle would not have that and
> thus wouldn't do anything, but the jaxrs bundle could properly define it's own
> activator in it's manifest.    This wouldn't be hard to do.
>
Yea;

Cheers, Sergey

> Dan
>
>> For example, in case of JAX-RS, this sub-activator will probably
>> register ServiceTrackers and start listening for (JAX-RS) Application
>> interfaces and then will create an endpoint by using HttpService or
>> embedded Jetty, something like that
>>
>> What do you think ?
>> Sergey


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