Hi guys,
I agree with Christian on the advantage, but not on the disadvantages,
especially in regards of the features provided compared to a framework.
I don't think it's fair to compare Karaf with a framework. Karaf should
be compared with other containers, or even application server like
WebSphere which run with OSGi. Now, compare the footprint, overhead, etc
between Karaf and WebSphere, or even Karaf and Tomcat.
So, we should not compare carrot and potatoes, it's not the same, not
the same purpose, not the same use cases.
Just my $0.02
Regards
JB
On 06/17/2014 08:06 AM, Christian Schneider wrote:
I have no experience with symphony so I can not compare.
For me there are three big advantages of karaf over other OSGi servers:
1. Karaf provides a very nice environment for management of the server
(Commands, Web interace jmx)
2. There are a lot of karaf features provided by karaf or external
projects (CXF including DOSGi, Camel, ActiveMQ, Hibernate, Eclipselink,
Openwebbeans, ....). So karaf already provides a feature set that is
comparable to big Java EE servers or even better while still being
pretty modular.
3. Testing integration with pax exam is very good so it is easy to set
up a QA environment
The one disadvantage of karaf I see is that it is quite big and complex
in itself (compared with a plain OSGi framework). For example it
currently needs blueprint which brings a lot of other dependencies in.
Also pax url is quite big. So karaf needs a lot of bundles for its own
"kernel". Luckily this will change for karaf 4. I experimented with it
and was able to run a basic karaf with shell and some commands with just
13 bundles. The foot print in MB is not reduced much but the fewer
bundles mean that you have less chances of something conflicting your
own dependencies.
Christian
Am 16.06.2014 23:37, schrieb lionceau:
Hi,
To build a modular software.
What are the advantages and disavantages of OSGi using apache Karaf vs
Symphony? and other modular softwares ?
For me the best advantage is to use DOGSGi , what more ?
--
View this message in context:
http://karaf.922171.n3.nabble.com/List-of-avantages-and-disavantages-of-OSGI-Karaf-vs-symphony-tp4033549.html
Sent from the Karaf - User mailing list archive at Nabble.com.
--
Jean-Baptiste Onofré
[email protected]
http://blog.nanthrax.net
Talend - http://www.talend.com
