Thank you all for your replies , I did not find any example on embedding karaf in my container , I use weblogic for deplyment and jetty for developemnt , please advice meif there are any examples for embedding karaf .(I did google but found nothing) Thanks a lot.
Caspar MacRae-2 wrote: > > Hi fachhoch, > > A few months ago I converted a Wicket & Spring app running on Tomcat have > an > OSGi running on Karaf. Basically the front-end Wicket stuff still thinks > it's talking to vanilla Spring, with Spring bridging to the OSGi registry. > > I couldn't get Hibernate to play nicely so first migrated to vanilla JPA, > then changed the provider to EclipseLink (this was a fair bit of work on > it's own, you might have better luck with Hibernate than I did). > > At this point you should be able to deploy your monolithic WAR (assuming > your Jar is packed into the War) to the OSGi container (using the pax war > handler). > > Then try to modularise (i.e. pull out a small Jar and convert to OSGi > bundle) a service at a time - by changing your Spring config it'll happily > pickup any OSGi services: > > <beans xmlns="http://www.springframework.org/schema/beans"; > xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"; > xmlns:util="http://www.springframework.org/schema/util"; > xmlns:aop="http://www.springframework.org/schema/aop"; > > xmlns:context="http://www.springframework.org/schema/context > " > xmlns:task="http://www.springframework.org/schema/task"; > xmlns:osgi="http://www.springframework.org/schema/osgi"; > xsi:schemaLocation=" > http://www.springframework.org/schema/beans > http://www.springframework.org/schema/beans/spring-beans-2.5.xsd > http://www.springframework.org/schema/util > http://www.springframework.org/schema/util/spring-util-2.5.xsd > http://www.springframework.org/schema/aop > http://www.springframework.org/schema/aop/spring-aop-2.5.xsd > http://www.springframework.org/schema/task > http://www.springframework.org/schema/task/spring-task-3.0.xsd > http://www.springframework.org/schema/context > http://www.springframework.org/schema/context/spring-context-2.5.xsd > http://www.springframework.org/schema/osgi > > http://www.springframework.org/schema/osgi/spring-osgi.xsd";> > > > Your service references are then defined with: > > <osgi:reference cardinality="0..1" interface="my.corp.SomeService" id=" > SomeService" /> > > The cardinality bit above is import as it allows Spring to rebind the > service when you deploy an update. > > This approach *should* allow you to migrate in a piecemeal manner, I'm not > certain you can mix the spring references as I didn't do it quite this way > - > so it might require a big bang migration of all services (this what I > did). > > > It wasn't a painless experience, but definitely worth it - we've a modular > app that supports dynamic updates of backend services, and it starts much > quicker. > > If you're using maven there's plenty of docs to help on the OSGi side; I > used Declarative Services (using felix SCR annotations) and Felix's > maven-bundle-plugin. I found Felix is a bit too bare metal for production > use, Karaf uses an underlying framework (Felix/Equinox/..) but gives you a > lot of stuff out of the box (SSH access, XML features, service scripts and > a > really nice OSGi shell). > > > Good luck =) > > Caspar > > > On 15 June 2011 16:12, fachhoch <[email protected]> wrote: > >> >> I like the osgi approach of modifying modules without restarting the >> server, I want to use this , and wondering If I can integrate apache >> felix >> in my exsisting app, I have a web application built with wicket , spring >> , >> hibernate , using pom , I have subprojects one for war and for jar , >> please >> suggest me are there any tutorials on integrating osgi into exisisting >> app >> ? >> is this kind of pluggable ? >> >> -- >> View this message in context: >> http://old.nabble.com/modifying-my-app-to-use-osgi-tp31852339p31852339.html >> Sent from the Apache Felix - Users mailing list archive at Nabble.com. >> >> >> --------------------------------------------------------------------- >> To unsubscribe, e-mail: [email protected] >> For additional commands, e-mail: [email protected] >> >> > > -- View this message in context: http://old.nabble.com/modifying-my-app-to-use-osgi-tp31852339p31854354.html Sent from the Apache Felix - Users mailing list archive at Nabble.com. --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
