Glyn Normington

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Eclipse Virgo

Wednesday, April 28, 2010

Agenda

• What is Virgo?

• Externals

• Concepts

• How can I get started?

• Current Status

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Wednesday, April 28, 2010

What is Virgo?• “Dynamic Enterprise Application Platform”

• Based on SpringSource dm Server 2.0

• Not to be confused with Spring DM

• Objectives:

• Better OSGi platform

• Migration of Java EE apps

• Modular and extensible

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Problems Virgo Solves

• Groups bundles into manageable units

• Enables the use of existing open source libraries

• TCCL, LTW, implicit package use

• Provisions from repositories

• Extensive diagnostics

• resolution failure, deadlock, delayed services

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Virgo and EclipseRT

Equinox

Gemini

web container

Spring

...

Virgo

kernel

...

web

blueprint

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Virgo Externals

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Virgo

Admin console

Shell

startup.sh -clean

/config

/pickup

JMX client

/serviceability

service wrapper

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Virgo Concepts

Artifacts

Repositories

Plans

Pipelines

Regions

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Artifacts

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Artifacts

• Identified by type, name, version

• Types:

• bundle - OSGi bundle

• configuration - properties file

• plan - list of artifacts

• ...

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Plans

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Plans

• XML

• List artifacts by type, name, version range

• Scoping

• Atomicity

• PARs

• Contain artifacts

• Scoped, atomic

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Scoping

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A

B

SyntheticContext

A B

XY

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Repositories

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Repositories

• Artifacts indexed by type, name, version

• Supports queries e.g. by version range

• Repository types:

• External

• Watched

• Remote

• Repositories may be chained14

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Repository Chainingremote

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Pipelines

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Pipelines

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resolve

install

quasiInstall

quasiResolve commit

transform

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Regions

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Regions

Kernel Region

User Region

packages services

services

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How can I get started?

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Getting Started

• Pre-req: Java 6

• Download & unzip

• bin/startup.sh or bin\startup.bat

• drop WAR files or bundles into pickup dir

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Then What?

• Read documentation

• User Guide

• Programmer Guide

• Getting Started Guide

• Join the community

• http://wiki.eclipse.org/Virgo/Community

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Roles

• Casual user

• Expert user

• Contributor

• Committer

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Committer Skills

• Know or willing to learn:

• Clean architecture & code

• Unit and integration testing

• Concurrency

• (Deep) OSGi

• git, ant, ivy, etc.

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Work Areas

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• Developer docs & wiki

• Jetty adapter

• Regions and nested frameworks

• p2 integration

• More server types

• Integration, batch, ECF, ...

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Current Status

• Renaming & relicensing complete

• IP scrutiny progressing well

• 6 out of 20 git repos available

• Baseline release is the goal

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Further Information

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• http://www.eclipse.org/virgo

• http://wiki.eclipse.org/Virgo/Community

• #VirgoRT

• http://www.springsource.org/dmserver

• Download dm Server 2.0 and try it out

Wednesday, April 28, 2010