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From Milen Dyankov <milendyan...@gmail.com>
Subject Re: [DISCUSSION] Introduction to OSGi powered by Apache Karaf
Date Mon, 14 Sep 2015 09:13:20 GMT
You have 2 steps presentation then ;)

*what OSGi is *

Bundle resolving lifecycle, requirements and capabilities, service
registry, whiteboard pattern, config admin, ... Basically those things that
make OSGi unique. If you wish to compare with microservices you may have a
look at
It's not state of the art deck but may give some ideas.

*how Karaf can simplify the life  *

Definitely features. Both form "easy to install applications with complex
dependency graphs" and "easy to create your own features" perspective. I
would also mention instances and perhaps clustering with cellar. Obviously
the console and the fact that you can ssh directly inside you application
(even though you can do that with plain Felix/Equinox too) and script


On Sun, Sep 13, 2015 at 9:44 PM, Christian Schneider <
chris@die-schneider.net> wrote:

> I think the main arguments for karaf are the console, the maven
> integration and the support for a wide range of Apache and other projects
> out of the box like
> ActiveMQ, CXF, Camel, Aries, Hibernate, Eclipselink, OpenJPA, pax exam,
> pax cdi, pax jdbc. Of course you can not look into these in detail in an
> hour but you can
> show how easy it is to install some of these especially with the repo-add
> aliases.
> Something that might work well is to prepare a very small application that
> shows how to combine some of the above projects. For all OSGi projects
> outside karaf integrating all these project is a really big challenge.
> For example I showed a little karaf application with a web UI, rest
> service (CXF) and twitter integration (Camel) some time ago:
> https://github.com/cschneider/Karaf-Tutorial/tree/master/voting
> https://docs.google.com/presentation/d/1990fWP3I0-WN2ZRiOJQY2o_HdAkIWmArPRDc_122dF0/
> Christian
> On 13.09.2015 21:15, Krzysztof Sobkowiak wrote:
>> Hi
>> Assume you have 1 hour for a talk and you would like to show the Java
>> developers what OSGi is and how Karaf can simplify the life while
>> developing the OSGi application. Which topics would you include in this
>> talk?
>> Kindly regards
>> Krzysztof
> --
> Christian Schneider
> http://www.liquid-reality.de
> Open Source Architect
> http://www.talend.com


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