OSGi – where do I start?A practical introduction to OSGi

Zoë Slattery &

Valentin Mahrwald

Objectives

Projects that will be useful to you in creating and building OSGi applications

Practical introduction – demos

Open source or free tools

OSGi

bundle=jar + extra manifest fields

RawDeclarative services

Blueprint

InstalledResolved

Active

Let's break the problem down

DevelopCreate bundle

Unit Test

Write associated XML

TestAs a bundle

DeployRun on OSGi framework

In the beginning there was....BND Link:http://www.aqute.biz/Code/Bnd

License: ASL2

Manifest-Version: 1.0Export-Package: org.example.api;version="0.0.0"Bundle-Version: 0.0.0Bundle-Name: org.example.apiBundle-ManifestVersion: 2Bundle-SymbolicName: org.example.api

BND

Demo BND

Eclipse BND Tools

Link: http://njbartlett.name/bndtools.htmlLicense: EPL

Java CodeOSGi

A rich forms-style editor for Bnd descriptor files,

Integration of Bnd into the Eclipse incremental build

IBM Rational Development Tools for OSGi Applications 1.0

Link: http://marketplace.eclipse.org/content/ibm-rational-development-tools-osgi-applicationsLicense: IBM Commercial (Free but not open source)

Java Code

OSGi

http://www.eclipse.org/proposals/osgi-enterprise-tools/

Create and edit OSGi bundles, applications.

Convert Java EE web, JPA, plug-in, or Java projects into OSGi bundles.

Edit OSGi application manifest files.

Create and edit OSGi blueprint configuration and binding configuration files.

Demo

Eclipse – BND/RAD

Maven

Most OSGi projects build using Maven

BND plugin

mvn eclipse:eclipse

Link: http://maven.apache.org/License: ASL2

Next up - deployment

DevelopCreate bundle

Unit Test

Write associated XML

TestAs a bundle

DeployRun on OSGi framework

OSGi deployment

My Application Bundle

OSGi

The Vision ...more oftenThe VisionThe Vision

My Application Bundle

OSGi

org.osgi.framework.BundleException: The bundle could not be resolved.

Increasing capability

Runtime options

Runtime options

Link: http://eclipse.org/equinox/License: EPL

Link: http://felix.apache.org/License: ASL2

Link: http://www.knopflerfish.org/License: BSD

PAX Runner

Link: http://paxrunner.ops4j.org/space/Pax+RunnerLicense: ASL2

Apache Karaf

Link: http://karaf.apache.org/License: ASL2

OSGi

AdminConsole Logging BlueprintDeployerProvisioning

Karaf

Hot deployment

Dynamic configuration

Logging System

Provisioning

Extensible Shell console

Security framework based on JAAS

Supports Apache Felix Framework 3.0 and Eclipse Equinox 3.6

Demo

Equinox

Pax-Runner

Karaf

Apache Aries

Link: http://incubator.apache.org/aries/License: ASL2

Blueprint

JMX

JPA

Transactions

JNDI

Application

Apache Geronimo

Link: http://geronimo.apache.org/License: ASL2

DEMO?

Eclipse Gemini

Link:http://www.eclipse.org/gemini/ License: EPL

Eclipse Virgo

Link: http://www.eclipse.org/virgo/License: EPL

DEMO?

Demo

Geronimo – if time

PAX Exam

Link: http://srv07.ops4j.org:8081/display/paxexam/Pax+ExamLicense: ASL2

In Summary

There are good OSGi tools – they will get better

It's not hard to get started :-)

Questions?