Hi,
CXF DOSGi implementation is based on CXF and exposes OSGi services as REST
service.
That's an approach for DOSGi, but it's not the only one.
In Cellar, you have another DOSGi implementation based on NIO/Hazelcast.
Another one is Eclipse RemoteService.
Each has pros/cons.
Anyway, the purpose of DOSGi is to provide remote service invocation. So, a
service is exposed on a node and used remotely on another one. It should be
transparent for your code (the only minor change is that the service that has to
be exposed for remote call should contain exported.service.interface property).
Regards
JB
On 10/23/2017 10:13 PM, Massimo Bono wrote:
Hello,
I'm trying to grasp my mind on DOSGi; I want to have a general idea on the main
concepts before start coding.
A while ago I tried (with success) to replicate the awesome tutorial Christian
provided (available https://github.com/apache/cxf-dosgi/tree/master/samples/rest).
Now, before continuing coding, I want to understand why DOSGi is useful in my
use case.
Briefly, I want to code with Declarative Services with Karaf because i feel it's
a more OSGi oriented way to define and bind services.
Furthermore, I want my OSGi framework to recreate a web page the user can
interact with: CXF can easily be deployed in Karaf, so I felt like it was a good
choice over the other alternatives (like jetty). I used RESTful services as
well, just to have something well structured.
In a previous question, Christian suggested me to use DOSGi to fullly implement
this scenario.
After the successful attempt, I read the following resources on the topic.
1) http://cxf.apache.org/distributed-osgi-reference.html;
2) https://github.com/apache/cxf-dosgi;
http://www.liquid-reality.de/display/liquid/2013/02/13/Apache+Karaf+Tutorial+Part+8+-+Distributed+OSGi;
Especially from the last one: It seems that DOSGi is used to let an OSGi
framework B access to services located on a OSGi framework A. This is all good
and dandy but in my scenario (Karaf + CXF exposing a REST service) where are the
2 OSGI containers? I can see only one, namely the one on my laptop in localhost!
I'm sure I'm missing something, probably for my inexperience.
Can someone solves this question of mine?
Thanks!
--
*Ing. Massimo Bono*
--
Jean-Baptiste Onofré
jbono...@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com
