The Business Process Execution Language for Web Services (BPEL) is frequently used to implement business processes on a technical level. BPEL allows describing long-running workflows using graphical editors to present workflows on human-friendly diagrams. Recently open source implementations like the Orchestration Director Engine (ODE) developed from the Apache Foundation and the Eclipse BPEL project have reached a maturity level which enables their use in a productive environment. Advanced integration features like dynamic endpoint resolution or policy driven configuration require a SOA runtime framework. We present the integration of ODE and the Eclipse BPEL editor with Eclipse Swordfish. Our extensions to the eclipse BPEL editor support the whole process development cycle including both visual and textual process design, deployment and testing. Web service meta data can be imported from the Swordfish service registry, orchestrated services can directly be registered as service providers and used by other services. Sample projects and wizards reduce the required familiarization effort.

1. Practical Process Orchestration using
Eclipse SOA
Dr. Dietmar Wolz
Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

2. Agenda
 Introduction
 Process Orchestration in Swordfish
 Sample scenario
 Eclipse BPEL Editor
 Demo
2 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

3. Agenda
 Introduction
 Process Orchestration in Swordfish
 Sample scenario
 Eclipse BPEL Editor
 Demo
3 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

4. What is Swordfish?
 Swordfish is the codename of the Eclipse SOA Runtime
Framework Project (under the Runtime top level project)
 Mission: Create a flexible and modular SOA runtime framework
that can be complemented by other components – both open
source and commercial – to create a full-fledged Enterprise
Service Bus.
 Swordfish builds upon existing proven open source SOA
technology and extends it with enterprise features such as service
registry integration, remote configuration and monitoring
capabilities.
4 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

5. Swordfish builds upon proven open
source ESB technology, extending it
with enterprise features
.
5 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

6. How to implement Services in
Swordfish?
 Swordfish is a framework – there's no single way to implement
services with Swordfish
 The options currently available include:
 BPEL (requires the Apache ODE BPEL Engine to be installed as a plugin)
 Java using JAX-WS (requires Apache CXF to be installed as a plugin)
 Java using low-level JBI APIs
 Swordfish is based on Equinox, so everything you deploy into
Swordfish must be packaged into an OSGi bundle.
6 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

7. Agenda
 Introduction
 Process Orchestration in Swordfish
 Sample scenario
 Eclipse BPEL Editor
 Demo
7 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

8. Composite Services in Swordfish
8 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

9. Why to use BPEL?
 Industry standard language for expressing business processes
 Business services can be designed to be process-agnostic
 The BPEL process manages and coordinates the state
 Designed to fit naturally into the Web services stack
 Uses and extends WSDL 1.1
 Expressed entirely in XML
 Provides and consumes Web services in an abstract way, using
WSDL to define service interfaces
9 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

10. BPEL features
 Parallel processing
 Delayed execution - persisting process state
 Concurrent/selective event processing
 Asynchronous execution
 Message correlation
 Data manipulation - XPath based
 Data validation
 Scoped error handling / compensation handlers
 Dynamic Endpoint Resolution
 Extendable - for example XSLT transformations
10 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

11. Swordfish features (will be extended)
 Events / Monitoring
 The Swordfish Event API builds upon the OSGi EventAdmin Service
 Configuration (local/remotely)
 The Configuration API builds upon the OSGi ConfigurationAdmin service
 A ConfigurationAgent receives configurations from a ConfigurationSource
(possibly a remote one) and provides them to other components through the
OSGi Configuration Admin service
 A component that implements ConfigurationConsumer receives updated
configurations as they become available
 Dynamic Endpoint Resolution / Service Discovery
 The Service Resolver API builds upon the general interceptor API
 The ServiceResolverInterceptor is reponsible for translating the (logical)
service interface name carried inside a message exchange into a physical
endpoint
11 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

12. Dynamic Service Discovery
12 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

13. Process-Tooling
Service
Registry/
Service Discovery/
File System
WSDL Import
Eclipse BPEL
Editor
Deployment
Apache ODE
JBI Service Unit
13 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

14. Swordfish-Tooling
14 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

15. BPEL Editor for Ganymede/Gallileo
- check the Swordfish Wiki
http://wiki.eclipse.org/Swordfish_Documentation:_Installing_BPEL_Editor_in_Ganymede
15 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

16. BPEL – WSDL - PartnerLinks
BPEL-Process
Partner Partner
Service
Process
Link Link Provider
Consumer invokes
inbound outbound
calls
import
abstract abstract
WSDL WSDL
inbound outbound
16 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

17. Process Execution
Process
BPEL-Process
Execution
calls
Process
Consumer
invokes
Service
Provider
replies
17 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

18. Standard JBI deployment
Inbound
Swordfish/ http-binding
SMIX 4 JBI Service Unit
Apache ODE NMR
external internal
JBI Service Unit
endpoints endpoints
Outbound
http-binding
JBI Service Unit
18 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

19. Alternative deployment
Inbound
http-binding
Swordfish/
JBI Service Unit
SMIX 4
Apache ODE NMR
external internal
JBI Service Unit
endpoints endpoints
Swordfish
ServiceResolverInterceptor
19 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

20. Agenda
 Introduction
 Process Orchestration in Swordfish
 Sample scenario
 Eclipse BPEL Editor
 Demo
20 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

21. Flight Reservation Service Process
Reservation Service
BPEL-Process
Partner Partner Reservation
Reservation
Storage
Link Link
Service
Service
invokes
Reservation Storage
Consumer calls
Provider
import
WSDL WSDL
Reservation Storage
21 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

22. Flight Reservation Service WSDLs
invokes
22 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

23. Physical Endpoints are not specified
in the Process Description
 Physical Endpoints are either
 defined in the http-binding SU
 or are provided dynamically by the
Swordfish Service Resolver Interceptor
23 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

24. Agenda
 Introduction
 Process Orchestration in Swordfish
 Sample scenario
 Eclipse BPEL Editor
 Demo
24 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

25. The Reservation Process in the
BPEL Editor
25 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

26. The BPEL source view
26 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

27. The missing view
 missing: a (really) human
readable process DSL
 Intalio developed such a
DSL called SimPEL
 a SimPEL compiler
translates SimPEL code
into BPEL
 Disadvantage: textual
representation is not
standardized
27 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

28. Import a WSDL
28 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

29. Receive the Process Parameters
29 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

30. The providerRequest Variable
30 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

31. The providerResponse Variable
31 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

32. The consumerRequest Variable
32 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

33. The consumerResponse Variable
33 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

34. The Inbound PartnerLink
34 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

35. The Outbound PartnerLink
35 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

36. Assigning Data
36 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

37. Invoke an External Web Service
37 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

38. Deployment to Apache ODE
38 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

39. Customizing ODE log output
39 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

40. Debugging / Tracing service calls
 Tracing outgoing service calls using httptracer
40 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0

41. Agenda
 Introduction
 Process Orchestration in Swordfish
 Sample scenario
 Eclipse BPEL Editor
 Demo
41 Practical Process Orchestration using Eclipse SOA | © 2009 by SOPERA ; made available under the EPL v1.0