Nuxeo World Session: Nuxeo & OSGi

Nuxeo & OSGiWhere are we going?Stefanescu Bogdan 1

Is Nuxeo OSGI Ready?● Yes, most of the Nuxeo bundles are OSGi ready. ● The core and most Nuxeo services are OSGi ready. ● WebEngine is OSGi ready.● What is then not ready for OSGi? ● The totality of the JSF web platform. ● Add-ons. ● Optional and web related services like the forum, etc. Really? ;-) 2●

What Does “OSGi Ready” Mean?● Deliverable as a set of OSGi bundles.● Able to run in an OSGi framework.● What is an OSGi bundle? ● A JAR with a valid OSGi manifest – So that a bundle can be started by an OSGi framework. – So that it may register a Bundle Activator to be notified about bundle activation and be able to interact with the framework. ● Having all its transitive dependencies OSGi enabled. 3 ● It is not enough to provide a valid manifest:

Why us e OSGi?● Because we need a module life cycle.● Nuxeo Runtime, which is also an OSGi Bundle, uses the OSGi model to register extension points and to contribute extensions.● Because it is the only Java framework to provide the features we need.● Do we use all the features proposed by OSGi? ● No. For now we are only using the life cycle model. But OSGi also provides a service model. 4

Nuxeo fully OSGi one day?● I hope so. But there are many things to do.● Fix bundles not already OSGi ready.● Maintain a fully Nuxeo OSGi distribution. ● We must change the way of developing at Nuxeo – either use Eclipse tooling or maintain Manifests by hand – we need more discipline when programming ● We must change our artifact repositories – this means changing all the poms at Nuxeo. – This means maintaining an OSGi bundle repository 5 accessible from maven – and align all other

So, where are we going?● Make use of OSGi services. ● Nuxeo Services - exposed as real OSGi services. ● Framework.getService() will still exist but will wrap a real OSGi service manager.● Provide a full OSGi distribution using Virgo.● Provide an OSGi repository of third party bundles.● Integrate with Spring Source Tool Suite?● Any other ideas? 6

Thank you! 7

Nuxeo World Session: Nuxeo & OSGi

by Nuxeo - Open Source ECM on Nov 24, 2010

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Nuxeo World Session: Nuxeo & OSGi — Presentation Transcript