Or a remote instance can "ship" a client interacting with a remote REST service
exposed from an OSGi service.
Regards
JB
On 10/24/2017 09:24 AM, Massimo Bono wrote:
So, it's like saying:
We know DOSGI implements RPC with REST-ful services, so we exploit that in order
to create some rest webservices. Then, instead of query them from another OSGi
container, we directly query them from the browser.
Is my understanding correct?
2017-10-24 6:29 GMT+02:00 Jean-Baptiste Onofré <j...@nanthrax.net
<mailto:j...@nanthrax.net>>:
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
<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
<http://cxf.apache.org/distributed-osgi-reference.html>;
2) https://github.com/apache/cxf-dosgi
<https://github.com/apache/cxf-dosgi>;
http://www.liquid-reality.de/display/liquid/2013/02/13/Apache+Karaf+Tutorial+Part+8+-+Distributed+OSGi
<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 <mailto:jbono...@apache.org>
http://blog.nanthrax.net
Talend - http://www.talend.com
--
*Ing. Massimo Bono*
--
Jean-Baptiste Onofré
jbono...@apache.org
http://blog.nanthrax.net
Talend - http://www.talend.com
