Re: D-OSGi and REST

Tue, 20 Oct 2009 21:17:23 -0700 


I think this is what you meant here probably with 'no annotations' ..

and here :

http://svn.apache.org/repos/asf/cxf/dosgi/trunk/samples/greeter_rest/int
erface/src/main/java/org/apache/cxf/dosgi/samples/greeter/rest/GreeterSe
rvice2.java

(has no annotations at all) but GreeterService2 uses this model :
http://svn.apache.org/repos/asf/cxf/dosgi/trunk/samples/greeter_rest/int
erface/src/main/resources/OSGI-INF/cxf/jaxrs/GreeterService2-model.xml



Demetris wrote:


Hi Sergey,
it is possible to execute bundles as RESTful resources on Felix without the need for JAX-RS annotations or the CXF libs? Felix has a full-featured HTTP bundlified server? 

Thanks

Sergey Beryozkin wrote:

Hi

no problems at all - your questions are welcome.
I know DOSGi does not run under J2ME(I tested the single distribution and 
it didn't go far)


What happened during that test ? Just curious...

I haven't worked with J2ME so I don't have any recommendations, sorry...

cheers, Sergey


Demetris-2 wrote:
Sergey one more question if you don't mind - you probably saw some of my earlier postings with Benson regarding running Web Services on mobiles. I can easily run KF or Equinox on mobiles and I can run some SOAP-based engines (ksoap-osgi) and open source Web Servers. I am leaning towards running REST-based services on mobiles - I know DOSGi does not run under J2ME (I tested the single distribution and it didn't go far) so I am hoping to follow another avenue along the same lines. If you have any advice on this I would greatly appreciate it. 

Thanks and regards

Sergey Beryozkin wrote:

Hi
Yes, we do, it is the CXF JAXRS implementation which is embedded inside 
the
DOSGI RI but given that the RI is based on CXF it's probably can be
expected. But DOSGi is an open spec.
Can I conceivably run this particular REST GreeterService and its 
client on any OSGi Web
Server (how about Knopflerfish) with the  JAX-RS libraries.
You should have no problems publishing (RESTful) services on Knopflerfish 
as
the DOSGI RI DSW component relies on the OSGI ServiceListener. It won't 
be
possible to run the (REST GreeterService) client on Knopflerfish though 
untill it implements the relevant OSGI spec (RFC 119 ?), but it should
not
be too difficult to do. In meantime the only option on the client side is 
to
load the bundles containing code explicitly consuming a remote service
(using proxy-based or http-centric api)...
cheers, Sergey 
Demetris-2 wrote:
In other words, without trying to make this too convoluted, my question is do you guys use your 
own implementation of JAX-RS (instead of Jersey etc.).

Thanks again

Demetris wrote:

Hi Sergey,
I followed up on your info below in the distribution baseline - thanks, things are making a bit 
more sense now.
Can I conceivably run this particular REST GreeterService and its client on any OSGi Web Server (how about Knopflerfish) with the JAX-RS libraries. I do see you are using Felix and 
Equinox in your examples so I am assuming the answer is yes.
What do you guys add to such a service with the cxf-dosgi-ri-singlebundle-distribution_1.0.0? The reason I am asking is because I want to connect the REST service with its client by 
over p2p instead of over HTTP.

Thanks

Sergey Beryozkin wrote:

Hi

Have a look please at
http://svn.apache.org/repos/asf/cxf/dosgi/trunk/samples/greeter_rest/ 

it is indeed virtually identical to a soap based greeter demo but
the difference is here :
http://svn.apache.org/repos/asf/cxf/dosgi/trunk/samples/greeter_rest/int erface/src/main/java/org/apache/cxf/dosgi/samples/greeter/rest/GreeterSe 
rvice.java

(note JAXRS annotations)

and here :
http://svn.apache.org/repos/asf/cxf/dosgi/trunk/samples/greeter_rest/int erface/src/main/java/org/apache/cxf/dosgi/samples/greeter/rest/GreeterSe 
rvice2.java

(has no annotations at all) but GreeterService2 uses this model :
http://svn.apache.org/repos/asf/cxf/dosgi/trunk/samples/greeter_rest/int erface/src/main/resources/OSGI-INF/cxf/jaxrs/GreeterService2-model.xml 

some more info is here :
http://cxf.apache.org/distributed-osgi-reference.html#DistributedOSGiRef erence-ServiceProviderpropertiesForConfiguringRESTfulJAXRSbasedendpoints 
andconsumers

hope it helps
Sergey



-----Original Message-----
From: Demetris [mailto:demet...@ece.neu.edu] Sent: 23 September 2009 08:13 
To: dev@cxf.apache.org
Subject: D-OSGi and REST


Hi Sergey,
you mentioned in the blog that users can now expose bundles/beans 
as

SOAP and
REST services. I looked over the example listed on the D-OSGi web site but both Greeter examples are the same for SOAP and REST - unless I am missing something. 
Do you have any examples of RESTful bundles?

Thanks

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