BPEL Conformance in Open Source Engines
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The document summarizes a study on the conformance of 5 open source BPEL engines (Apache ODE, bpel-g, OpenESB, Orchestra, Petals ESB) to the BPEL 2.0 standard. 128 test cases covering the BPEL specification were executed against each engine over 10 hours. The results showed that bpel-g and Apache ODE demonstrated the highest conformance at 80% and 67% respectively, while Petals ESB showed the lowest conformance at 24%.
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BPEL Conformance in Open Source Engines
- 1. BPEL Conformance in Open Source Engines Simon Harrer, J?rg Lenhard and Guido Wirtz Distributed Systems Group University of Bamberg Bamberg, Germany {simon.harrer,joerg.lenhard,guido.wirtz}@uni-bamberg.de
- 3. Source: Jens Rasch / pixelio.de
- 4. Travel Booking Service BPEL 2.0
- 5. BPEL 2.0 Open OASIS Standard; finalized in 2007 De facto Standard for Orchestrations Used in many approaches
- 6. BPEL 2.0 Open OASIS Standard; finalized in 2007 De facto Standard for Orchestrations Used in many approaches Fully Conformant Engines ensure - Portability - Avoidance of Vendor Lock-In
- 7. BPEL 2.0 Open OASIS Standard; finalized in 2007 De facto Standard for Orchestrations Used in many approaches Fully Conformant Engines ensure - Portability - Avoidance of Vendor Lock-In Are we there, yet?
- 8. 5 Open Source BPEL Engines 128 BPEL Test Cases 10 Hours 640 Test Results
- 9. 5 Open Source BPEL Engines
- 10. 5 Open Source BPEL Engines Apache ODE* bpel-g** OpenESB Orchestra Petals ESB * Used in WSO2 Business Process Server, Intalio|BPMS and JBoss RiftSaw ** Based on ActiveBPEL, a previously commercial product of active endpoint
- 11. 5 Open Source BPEL Engines Apache ODE Maintained bpel-g OpenESB Latest Release Orchestra Petals ESB Mature
- 12. 5 Open Source BPEL Engines ¡°BPEL 2.0 conformant¡± Apache ODE Maintained bpel-g OpenESB Latest Release Orchestra Petals ESB Mature
- 13. 128 BPEL Test Cases
- 14. 128 BPEL Test Cases BPEL Specification
- 15. 128 BPEL Test Cases BPEL Specification basic structured scopes activities activities Chapter 10 Chapter 12 Chapter 11
- 16. 128 BPEL Test Cases BPEL Specification basic structured scopes activities activities Assign EventHandlers If Empty FaultHandlers While ¡. ¡. ¡.
- 17. 128 BPEL Test Cases BPEL Specification basic structured scopes activities activities Assign EventHandlers If Empty FaultHandlers While ¡. ¡. ¡.
- 18. 128 BPEL Test Cases While <process> <partnerLinks /> <variables /> <sequence> <receive /> <!??MAIN EXTENSION POINT??> <assign /> <reply /> </sequence> </process>
- 19. 128 BPEL Test Cases While <process> <partnerLinks /> <variables /> <sequence> <receive /> <assign name="InitializeLoopCounter"> <!-- $Counter = 0 --> </assign> <while name="While"> <condition>$Counter < $Input</condition> <assign name="IncrementLoopCounter¡° > <!-- $Counter++ --> </assign> </while> <assign /> <reply /> </sequence> </process>
- 20. 128 BPEL Test Cases While <process> <partnerLinks /> <variables /> <sequence> <receive /> <assign name="InitializeLoopCounter"> <!-- $Counter = 0 --> </assign> <while name="While"> <condition>$Counter < $Input</condition> <assign name="IncrementLoopCounter¡° > <!-- $Counter++ --> </assign> </while> <assign /> <reply /> </sequence> Test Input Assertions </process> synchronous: 5 output: 5
- 21. 128 BPEL Test Cases tests Assign 18 Empty 1 Exit 1 Invoke 11 Receive 5 basic ReceiveReply 11 Rethrow 3 Throw 5 Validate 2 Variables 3 Wait 3 Compensation 5 CorrelationSets 2 EventHandlers 8 scopes FaultHandlers 6 MessageExchanges 3 PartnerLinks 1 Scope-Attributes 3 TerminationHandlers 2 Variables 2 Flow 9 structured ForEach 10 If 5 Pick 5 RepeatUntil 2 Sequence 1 While 1
- 22. 128 BPEL Test Cases tests Assign 18 Empty 1 Exit 1 Invoke 11 Receive 5 Quality Assurance basic ReceiveReply 11 Rethrow 3 Throw 5 Validate 2 Variables Wait 3 3 - Permutate Configuration Compensation CorrelationSets 5 2 - XML Schema Validation EventHandlers - Peer¡ªReview in Group 8 scopes FaultHandlers 6 MessageExchanges 3 PartnerLinks Scope-Attributes 1 3 - Publicly availability - 95% of Test Cases run TerminationHandlers 2 Variables 2 Flow 9 on at least one engine structured ForEach 10 If 5 Pick 5 RepeatUntil 2 Sequence 1 While 1
- 23. 10 Hours Source: Bernd Deschauer / pixelio.de
- 24. 10 Hours Generate Reports per engine and per test case Generate Generate Install Start Deploy Execute Stop BPEL Test Engine Engine BPEL Test Engine Prepare Folders
- 25. 10 Hours Generate Reports 640 times = 5 engines * 128 test cases Generate Generate Install Start Deploy Execute Stop BPEL Test Engine Engine BPEL Test Engine Prepare Folders
- 26. 10 Hours Generate Reports 640 times = 5 engines * 128 test cases Generate Generate Install Start Deploy Execute Stop BPEL Test Engine Engine BPEL Test Engine Prepare Folders 8 hours for test isolation
- 27. 640 Test Results Source: S. Hofschlaeger / pixelio.de
- 28. 640 Test Results bpel-g 1 Apache ODE 2 OpenESB 3 Orchestra 4 PetalsESB 5
- 29. 640 Test Results in % bpel-g 67 80 Apache ODE OpenESB Orchestra 66 PetalsESB 49 24
- 30. 640 Test Results in % bpel-g Apache ODE OpenESB Orchestra Petals ESB basic activities78 60 54 41 25 scopes 78 78 84 47 22 structured 88 70 70 activities 58 24 ¦² 80 67 66 49 24
- 31. 640 Test Results ????? 100 ???? 75-99 ??? 50-74 ?? 1-49 ? 0 bpel-g Apache ODE OpenESB Orchestra Petals ESB Assign ??? ??? ??? ?? ?? Empty ????? ????? ????? ????? ????? Exit ????? ????? ????? ????? ????? Invoke ??? ??? ?? ??? ?? Receive ???? ??? ?? ?? ?? basic ReceiveReply ??? ?? ?? ?? ?? Rethrow ????? ??? ?? ? ? Throw ????? ????? ???? ? ? Validate ????? ? ????? ? ? Variables ????? ??? ??? ?? ?? Wait ?? ????? ????? ??? ?? Compensation ????? ???? ????? ?? ? CorrelationSets ????? ????? ??? ? ? EventHandlers ?? ???? ???? ??? ? scopes FaultHandlers ????? ????? ????? ?? ???? MessageExchanges ????? ?? ?? ?? ? PartnerLinks ????? ????? ????? ????? ? Scope-Attributes ????? ??? ????? ?? ??? TerminationHandlers ? ? ????? ????? ? Variables ????? ????? ????? ????? ? Flow ????? ????? ?? ???? ? structured ForEach ???? ?? ???? ? ?? If ????? ???? ???? ???? ???? Pick ??? ????? ???? ???? ?? RepeatUntil ????? ??? ????? ????? ? Sequence ????? ????? ????? ????? ????? While ????? ????? ????? ????? ?????
- 32. Portability ? 0,8 0,59 0,45 0,25 0,15 1 2 3 4 5
- 33. Portability ? 0,8 0,59 0,45 0,25 0,15 1 2 3 4 5
- 34. 5 Open Source BPEL Engines 128 BPEL Test Cases 10 Hours 640 Test Results
- 35. 5 Open Source BPEL Engines 128 BPEL Test Cases 10 Hours 640 Test Results Limited Portability
- 36. Source: Karl Dichtler / pixelio.de
- 37. 5 BPEL Engines 128 BPEL Test Cases 10 Hours 640 Test Results
- 38. 5 BPEL Engines 128 BPEL Test Cases 10 Hours 640 Test Results
- 39. 5 BPEL Engines 128 BPEL Test Cases 10 Hours 640 Test Results
- 40. Try it! Web Site https://github.com/uniba-dsg/betsy/ Source Code https://github.com/uniba-dsg/betsy/tree/soca-2012 We ? Feedback