Virgo is an open source dynamic enterprise application platform based on SpringSource dm Server 2.0. It aims to provide a better OSGi platform and enable easier migration of Java EE applications. Virgo solves problems with managing OSGi bundles and using existing libraries. It provisions applications from repositories and provides extensive diagnostics. Users can get started by downloading Virgo, dropping applications into its pickup directory, and exploring its documentation. The project is currently working to rename components, complete IP scrutiny, and release an initial baseline version.

1. Eclipse Virgo
Glyn Normington
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2. Agenda
• What is Virgo?
• Externals
• Concepts
• How can I get started?
• Current Status
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3. 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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4. 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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5. Virgo and EclipseRT
Virgo Gemini
web web container
kernel blueprint
... ...
Equinox
Spring
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6. Virgo Externals
Admin
startup.sh -clean console
service wrapper JMX client
/pickup Virgo Shell
/config
/serviceability
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7. Artifacts
Regions
Plans
Virgo
Concepts
Pipelines Repositories
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8. Artifacts
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9. Artifacts
• Identified by type, name, version
• Types:
• bundle - OSGi bundle
• configuration - properties file
• plan - list of artifacts
• ...
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10. Plans
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11. Plans
• XML
• List artifacts by type, name, version range
• Scoping
• Atomicity
• PARs
• Contain artifacts
• Scoped, atomic
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12. Scoping
Synthetic
Context
A B
A
B
Y X
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13. Repositories
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14. Repositories
• Artifacts indexed by type, name, version
• Supports queries e.g. by version range
• Repository types:
• External
• Watched
• Remote
• Repositories may be chained
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15. Repository Chaining
remote
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16. Pipelines
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17. Pipelines
install
transform quasiInstall
resolve
quasiResolve commit
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18. Regions
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19. Regions
User Region
services
packages services
Kernel Region
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20. How can I get started?
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21. Getting Started
• Pre-req: Java 6
• Download & unzip
• bin/startup.sh or binstartup.bat
• drop WAR files or bundles into pickup dir
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22. Then What?
• Read documentation
• User Guide
• Programmer Guide
• Getting Started Guide
• Join the community
• http://wiki.eclipse.org/Virgo/Community
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23. Roles
• Casual user
• Expert user
• Contributor
• Committer
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24. 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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25. Work Areas
• Developer docs & wiki
• Jetty adapter
• Regions and nested frameworks
• p2 integration
• More server types
• Integration, batch, ECF, ...
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26. 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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27. Further Information
• 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
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