1. http://www.isencia.be Tango & Passerelle - Tango meeting at Synchrotron Soleil June 16, 2004

2. Synchrotron Soleil – Passerelle Workshop 2 © iSencia 2004 Topics iSencia Belgium Passerelle at Soleil - a solution component in the Tango environment Concepts Benefits Sample assemblies Extending Passerelle

3. Synchrotron Soleil – Passerelle Workshop 3 © iSencia 2004 iSencia Belgium

4. Synchrotron Soleil – Passerelle Workshop 4 © iSencia 2004 Who we are Technology-driven services company with extensive experience in Distributed systems Object Oriented Programming Web technology for building High-throughput robust transactional systems Data- and process-flow management systems in services and industries

5. Synchrotron Soleil – Passerelle Workshop 5 © iSencia 2004 Who we are Part of iSencia group : offices in Barcelona and Gent Total of approx. 20 IT professionals, with experience of OO and Java on several platforms: MS Windows, Unix flavours, iSeries Sample customers: au tomation, production planning (Brooks-PRI, Spiromatic, AutoJet) pharma (e.g. Abott) Belgacom, Belgian mail “De Post” Financial institutions (via big consultancies) …

6. Synchrotron Soleil – Passerelle Workshop 6 © iSencia 2004 What we do Expert Services Consulting Solution delivery based on robust frameworks and reusable components Passerelle : Suite for Model Driven Solution Assembly Target application domains Pervasive event and alert handling Automated process control Automated data flow Unified Event/Message handling Maestro : Leading production planning tool Main application domain: high-end automation of bulk processing

7. Synchrotron Soleil – Passerelle Workshop 7 © iSencia 2004 Passerelle at Soleil

8. Synchrotron Soleil – Passerelle Workshop 8 © iSencia 2004 Tango solution packages Devic e Bus Logiciel TANGO (moteur…) Hardware (E/S…) Hardware Environnements Utilisateurs: MATLAB, IGOR, python, Bindings Supervision Config uration Archiv age Séquen ceur: PASSE RELLE

9. Synchrotron Soleil – Passerelle Workshop 9 © iSencia 2004 Passerelle Concepts

10. Synchrotron Soleil – Passerelle Workshop 10 © iSencia 2004 Passerelle concepts Target solution domains Batch processing in business information systems Process sequencing and scheduling Event-based data-flow solutions Business activity monitoring Alert management... Basic principles A solution is constructed as an assembly model of interconnected actor components Each actor has a single, well-defined function/responsibility Actors are available in libraries for several categories Assemblies are described in XML files These XML files can be deployed to several execution options

11. Synchrotron Soleil – Passerelle Workshop 11 © iSencia 2004 Passerelle concepts Inter actors Applets Beans Admin Framework APIs Solution assembly models ExecutorsActors IDE engine scheduler cmd line Sources Sinks Transform... Unified Messaging Scheduler Db access...

12. Synchrotron Soleil – Passerelle Workshop 12 © iSencia 2004 Passerelle actors Actors are Java components, each with a clear task, e.g. Read a file Drive a Tango motor device Update a database Generate a trigger pulse according to some schedule Select alternative continuations based on some condition... Actors are maintained in category libraries, e.g. Sources Sinks Filters Flow control... They communicate via input and output ports (similar to digital electronics components) Their activity & life-cycle is controlled by a model Director

13. Synchrotron Soleil – Passerelle Workshop 13 © iSencia 2004 Passerelle concepts Execution of solution models The model Director defines the RULES for the model execution Sequential or parallel execution Actor communication via method-calls, message queues,...... An Executor defines HOW/WHEN the model is executed Inside the IDE From the command prompt By delivering a new model in a designated folder for the executor service According to a periodic or non-periodic schedule as defined by the Passerelle scheduler

14. Synchrotron Soleil – Passerelle Workshop 14 © iSencia 2004 Passerelle IDE Passerelle contains an IDE to design and test new assemblies

15. Synchrotron Soleil – Passerelle Workshop 15 © iSencia 2004 Assembling a solution Design models (IDE) Pick existing actors & identify gaps Use scriptable actors to fill gaps, or develop new actors Configure actors (rules, source/sink identification, …) Test Deploy models Models can be deployed to different executors ( Engine, Scheduler, Command Line ) Admin Web-based admin console

16. Synchrotron Soleil – Passerelle Workshop 16 © iSencia 2004 Passerelle Benefits

17. Synchrotron Soleil – Passerelle Workshop 17 © iSencia 2004 Passerelle Benefits Designed for reuse Pipe-and-filter architecture Promotes clear definition of component responsibilities Promotes low coupling of component implementations Actor development framework Graphical solution assembly Clear split between actor development and solution assembly Ready for different solution domains Based on proven open-source frameworks&tools Ptolemy (Univ.of Berkeley) Netbeans (Sun) Jboss Tomcat, Log4J,... (Apache)

18. Synchrotron Soleil – Passerelle Workshop 18 © iSencia 2004 Samples

19. Synchrotron Soleil – Passerelle Workshop 19 © iSencia 2004 “Hello World”

20. Synchrotron Soleil – Passerelle Workshop 20 © iSencia 2004 Simple file-driven motor positioning

21. Synchrotron Soleil – Passerelle Workshop 21 © iSencia 2004... with some timing condition

22. Synchrotron Soleil – Passerelle Workshop 22 © iSencia 2004... or a plot of the sequence

23. Synchrotron Soleil – Passerelle Workshop 23 © iSencia 2004 Extending Passerelle

24. Synchrotron Soleil – Passerelle Workshop 24 © iSencia 2004 Extending Passerelle Options Extend actors (simple) Write JavaScript or Jython scripts for existing scriptable actor Develop new Java-based actors Investigate and reuse actors from Ptolemy Extend directors (complex) When new types of pipes are needed between actors When new execution rules are needed To support completely different application domains Cfr Ptolemy domains

25. Synchrotron Soleil – Passerelle Workshop 25 © iSencia 2004 Conclusion

26. Synchrotron Soleil – Passerelle Workshop 26 © iSencia 2004 Conclusion Passerelle is an open suite for component-based solutions for data- and process-flow Current goal at Soleil: process sequencing Easy to integrate in a distributed IT infrastructure, such as the Tango environment Will be part of a well-controlled Soleil open-source community Easy to extend/customize Based on proven Java technology