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Distributed OSGi - OSGi DevCon - Eclipsecon 2011
- 1. Distributed the Way Transforming OSGi the World Runs Applications Robert Dunne robert.dunne@paremus.com www.paremus.com Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 2. Overview • OSGi Remote Services basics • What OSGi Remote Services Admin (RSA) adds • What’s a Topology Manager? • What’s still missing? Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 3. Bundles share services via the registry Transforming the Way the World Runs Applications Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 4. Add remoting at service registry level Transforming the Way the World Runs Applications Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 5. Remote Services: Distribution Providers • Monitor Service Properties ‣ Export matching services • Monitor Service Listeners (With hooks) ‣ Import on demand (maybe!) • There can be multiple, independent DPs Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 6. Remote Service Properties • Configurations (remoting stacks) - configuration specific properties • Interfaces • Intents (from SCA) ‣ QoS & Non-Functional ‣ Can be - Built in to services - Required by services - Required by admins Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 7. Remote Services Open issues • Open Issues ‣ How are services discovered ‣ When should they be imported ‣ How can system builders control remoting Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 8. Remote Services Admin (RSA) • API for Import and Export • Endpoint Descriptions and Listeners Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 9. RSA import and export Transforming the Way the World Runs Applications Imports and Exports are now explicit Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 10. RSA Discovery with EndpointDescriptions • EndpointDescriptions ‣ Just Properties • Where do they come from? ‣ Created when you Export ‣ Can be embedded in bundles ‣ Discovered via an EndpointListener - Or any way you like Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 11. RSA: Discovery with EndpointDescriptions Transforming the Way the World Runs Applications Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 12. What’s a Topology Manager? • RSA for remoting mechanics • Topology managers for Remoting Policy and Goals ‣ Just a Concept/Role ‣ No API Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 13. Alternative Topologies Independent Pipelines Transforming the Way the World Runs Applications Round Robin Pipelines Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 14. Federated Topology Management Transforming the Way the World Runs Applications Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 15. Open Issue: Topology Descriptions • How to express topology ‣ Description -> Federated TM -> Distributed System ‣ Lots of room for innovation ‣ Too early to standardise Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 16. Open Issue: Distributed Provisioning • RSA controls the wireup • But how do the services get deployed Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 17. RSA Implementations • Eclipse ECF • Apache CXF • Paremus Nimble Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 18. Where we fit in OSGi Distribution (like Ubuntu is a Linux distribution) Transforming the Way Ships with OSGi Remote Service Admin the World Runs Applications Builds on Nimble A Distributed Model Driven OSGi runtime Provisioning and Topology descriptions Paremus www.paremus.com March 2011 Copyright © 2011 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.
- 19. Making Modularity Manageable™ Thank you for coming http://www.paremus.com/nimble Robert Dunne robert.dunne@paremus.com Paremus www.paremus.com Feb 2010 Copyright © 2009 Paremus Ltd. May not be reproduced by any means without express permission. All rights reserved.