javaone 2012, osgi for the earthlings: meet eclipse libra

OSGi for the Earthlings: Meet Eclipse LibraMurat Yener (@yenerm)

Wednesday, October 3, 12

Who am I?

• Java/JavaEE, OSGi, GWT, Flex, Android, iOS, Node.js... simply Code Geek!

• GDG/GTUG Istanbul Lead

• Eclipse Committer

• Conference Speaker


OSGi vs Developerspointed ears rounded ears OSGi?!?Human

nature?

Fully supported by USS Enterprise Looking for IDE support


OSGi: The good(s)...

•Architecture for developing and deploying modular apps

•Build using OSGi APIs

•Deploy to an OSGi Container


OSGi Containers?

•Runtime for the OSGi Apps

•from Symbian to Enterprise

•equinox, felix, knoplerfish...


JavaEE: If the shoe does not fit

•Tightly coupled -- hardwired

•Not Dynamic -- restarts with every deploy

•Isolation -- no sharing, common libraries, version conflicts, hierarchical class loading


Enterprise OSGi

•OSGi programming model: proven, standarts-based, dynamic, modular, manageable, ubiquitous, evolvable

•Enterprise Infrastructure: persistence, transactions, distributed, management, naming


Enterprise OSGi


OSGi Tools: the bad..

•Ant tools: bnd, bundlor

•Eclipse tools: bnd, bndtools, bundlor, pax, sigil, concierge

•Rational

•Spring tools

•Too many/Not enough tools

•Different philosophies (OSGi Transperent, Generate Manifests)

•OSGi Frameworks are tricky (launching, installing...)


OSGi: the ugly...

•development complexity, no more plain java (bundles, activators, manifests)

•each tool adds its own behaivour and complexity

•different containers, different packaging and configuration


Five Levels of OSGi (Alex Blewit)can’t possibly work

written by IBM, right?eclipse use OSGi, I don’t use Eclipse

OSGi is too complex

why can’t this bundles see this classwhy am I getting ClassNotFound Ex

these two same classes are not the samewhy doesn’t hibernate work

if you can start up the services in this orderwhy does this work in equinox but not felixplease let there be a StackOverflow answer

how do I load a JDBC driverwhy doen’t my custom Log4J logger work

why do I have to write a Manifest manually

sudden dawn of understanding of bundlessee how services can be connected with DS

remote services to other Systemsdynamically upgrade running code

evangelise & tweet & give keynote on OSGi

DENIAL

ANGER

BARGAINING

DEPRESSION

ACCEPTANCE


Developer: the poor...

•need to learn the OSGi way

•need to learn tools

•need to learn containers


Developer: the poor...

•need to learn the OSGi way

•need to learn tools

•need to learn containers

wait!!!Wednesday, October 3, 12

Building Web/EE Apps

•Different servers

•Different configurations

•Abstraction of Development


Building Web/EE Apps

•Different servers

•Different configurations

•Abstraction of Development

do we really need to invent a new wheel??


soo what if...

++


Earthlings, meet Eclipse Libra

WTP

PDE

Tools


Libra Tools Scopein out

frameworks

standarts&

technologies

virgo

eclipselink

aries

equinox

jetty

geminitomcat

felixwebsphere (liberty)

uJonasweblogic

PARs

EABs

blueprint subsystemsOSGi

JPAJavaEE blueprint

WEBOBR

declerative services


What is in JUNO Release...•OSGi Bundle Facet

•WAR Products

•OSGi Framework Adapters

•adapted from WTP server adapters

•launch configs

•supports Felix/equinox/knoplerfish

•Gemini/Apache Aries

•Virgo tools not yet ported


also...

•Framework Editor

•refactoring from virgo tools

•server console

•bundle overview

•dependency graphs

•Provisional: bundle projects and Manifest Editor


Bundle Projects

•OSGi Bundle Facet

•PDE / WTP project types

•versioned

•Tools can add more behaviour


Framework Adapters

•Vanilla OSGi Frameworks

•eclipse equinox, apache felix, knoplerfish

•Eclipse RT (with above)

•gemini, virgo, eclipselink, jetty...

•Apache Aries (with above)


Bundle Overview

•Part of framework editor, list and control all bundles


Bundle Dependency ViewGraphical representation of bundle dependencies with drill downs


Server ConsoleSimilar to console shells


Bundle Repository Browser(Virgo) Resolves bundles from OBRsSpring Enterprise Bundle Repository


WAR Products•Equinox running in JavaEE server in bridget mode

•Simply add your plugins to a product definition that exports a WAR file (includes all necessary files!)


demos

•Available online http://www.eclipse.org/libra/documentation/video/

•Launchers and Declerative Services

•Gemini Web

•Http Service and WAR products


QnA

http://eclipse.org/libra

Murat Yener

[email protected]

@yenerm

blogs.eteration.com / devchronicles.com




mailto:[email protected]

mailto:[email protected]

javaone 2012, osgi for the earthlings: meet eclipse libra

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