Presentation of SOA standards at OW2 track of the first Open World Forum. Focus on WSDL, JBI and SCA, and their use in PEtALS and Dragon open source projects.

1. SOA Track

2. Gaël Blondelle

4. SOA Standards
Open Source Solutions

5. SOA
Reuse

6. SOA
Agility

7. SOA
Interoperability

8. Standards

9. Java WSDL
JBI
XML
WSI
WS-*
SCA
BPEL WS-Security

10. Interface
Loos ht
Cou e Tig ng
pling
ou pli
C

12. “In the beginning was the interface
definition, and the interface
definition language was WSDL”
Dr N. Salatgé, Research Engineer
at EBM WebSourcing
WSDL enthusiast

13. WSDL by W3C
WSDL 1.1 WSDL 2.0
<definitions name=« … »> <description>
<types> <types>
</types> = </types>
<messages>
</messages> Ǿ
<portTypes> <interface>
</portTypes> ≈ </interface>
<binding> <binding>
</binding>
SOAP1.1 ≈ </binding> SOAP
SOAP1.2
HTTP
<service> <service>
</service>
HTTP
≈ </service> RPC
MIME
</definitions> </description>

14. Non consistent solutions
• WSDL4J:
http://wsdl4j.sourceforge.net/
– Handle WSDL 1.1: read/write/create
• Woden:
http://ws.apache.org/woden/
– Handle WSDL 2.0: read/write/create
– Converts WSDL1.1 to WSDL2.0 using the
W3C XSL Stylesheet with loss of data

15. Easy WSDL Toolbox
<description>
<types>
</types>
<messages>
</messages>
<interface>
WSDL 1.1 </interface> WSDL 2.0
<binding>
</binding> SOAP
HTTP
<service>
RPC
</service>
SOAP1.1
</description>
SOAP1.2
HTTP
MIME

16. Easy WSDL Toolbox
• Unifies WSDL1.1 and WSDL 2.0*
– Read
– Write
– Create
– Convert
• Can be extended
– easy-SAWSDL
– easy-WSDL4BPEL

17. WSDL
Loos ht
Cou e Tig ng
pling
ou pli
C

18. SOA
Loosely coupling

19. Connect the Silos

20. JBI
• NMR : The key for loosely coupling
External services
Process
Process
pattern
pattern
Artifacts
XSL
XSL
SOAP JMS EJB JBI
XSLT BPEL EIP Components
HTTP MOM RMI
JBI NMR

21. Distributed ESB
JBI Compliant
Scalable
Robust
Agile

22. Eclipse Tools and Web Monitoring

23. WSDL
ht
Tig ng
JBI Cou pli

24. “What if” too many integration steps?

25. Integration logic
• Managed as usual project
– One project manager
– Create composite applications / composite
services
• Tight coupling
– BPEL - Create services that support compensation
– Java (JSR 181 or EJB 3)
– SCA

26. SCA

27. SCA and JBI
• SCA composites inside
• JBI connections outside
Composite Binding
Service JBI
Binding
Component
WS
Binding
WS

28. WSDL
S CA
JBI EL
BP a
Ja v

29. ( )
PEtALS V3
( )
• BPEL V2 support based on Orchestra
• JSR 181 support based on Axis 2
( )
• SCA support based on Frascati
– Full features SCA implementation
– Supports SCA for Java specification
– Support SCA assembly specification
( )
– Extends the Fractal Component Model

30. Dragon Governance solution
• Based on CBDI SOA metamodel
• Manage service lifecycle
• Manage SLA
• Connects to PEtALS
• Proposed to OW2
• First release by the end of 2008

32. Reading Advice
• Available at
www.soaadoptionfordummies.com
• Written by Software AG
• Good principles explained
• Consider Open Source solutions

33. Gouverner