1. © The Middleware Company SOA Blueprints Learning Best Practices and Sample Applications for SOA Steve Wilkes Senior Middleware Maven 7 THE MIDDLEWARE COMPANY 09.22.2004

2. © The Middleware Company AGENDA Why are we doing this? What are the goals? SOA Concepts The Reference Example The Specification Implementations

3. © The Middleware Company Why are we doing this? SOA is the new old thing -The concept has been around for years -The practical realization has only recently materialized J2EE had the PetStore -Initially a Patterns application without specification -Very successful as a learning tool -In some ways too successful – people learned architectural anti- patterns in addition to the technology that was shown SOA needs a PetStore not The PetStore -Demonstrating SOA best practice requires many applications -Industry focus on (inter) communication not eCommerce

4. © The Middleware Company What are the goals? Part of a long term project, SOA Blueprints aims to: -Define a baseline standardized set of enterprise applications -Focus on SOA principles -Highlight SOA design patterns and best practices -Encourage SOA adoption -Be industry agnostic -Be applicable to as many organizations as possible The specification will lead to: -An agreement on SOA terminology -A reference open source implementation -An implementation by vendors -Additional modules with particular industry focus

5. © The Middleware Company SOA Concepts SOA Much More Than Web Services Common SOA Terms Patterns SOA Platform Requirements Standards Glossary

6. © The Middleware Company SOA Much More than Web Services Service definition does not include protocol or wire format How many protocols in your organization? WSDL could be the key Service providers should concentrate on the service Service consumers just want to use the service It’s the SOA that allows providers and consumers to communicate

7. © The Middleware Company Common SOA Terms Common SOA Terms (the specification includes those highlighted in blue)

8. © The Middleware Company SOA Terms (cont) Synchronous and Asynchronous Services Component Services Data Services Composite (Business) Services Conversational (Workflow) Services Publish-Subscribe Services Service Brokers Exception Handling And Compensating Services Service Security Interception And Extensibility Interoperability

9. © The Middleware Company SOA Patterns Initial patterns will include: Service Registry and Static Binding Service Registry and Dynamic Binding Service Broker Distributed Service Broker Service Bus Distributed Service Bus

10. © The Middleware Company SOA Anti-Patterns Overly granular business services Remote access to local services Overuse of XML Use of loose coupling where tight coupling is required

11. © The Middleware Company SOA Granularity

12. © The Middleware Company SOA Development Requirements Target implementation environments should provide: Definition of services independent of implementation, location or use Implementation and hosting of services as a provider Location and usage of services as a consumer Assembly of services from other services and business rules Support for synchronous, asynchronous and conversational services Orchestration of application presentation built on services and rules Automated data transformation between disparate data structures Provisioning of local and remote services Support for simulating, testing and debugging of services

13. © The Middleware Company Standards Standards being considered for inclusion include: WS-I BPEL4WS WS-Security WS-Notification Jini WSRP WS-Manageability

14. © The Middleware Company Reference Example Common Enterprise Applications (the specification includes those highlighted in blue)

15. © The Middleware Company The Specified Applications Based around fictitious enterprise - GeneriCo A distributed enterprise wide security mechanism An employee self service portal providing: -Authentication -Organization Browser -Task List Management -Expense Reporting -Employee Reviews A Product data service Some payroll & supply chain functions as required by the specification A basic HR application for management of employees and departmental structure

16. © The Middleware Company The Security Mechanism Provide security for: -New Applications -Legacy Applications Provide indentity management Automate employee security

17. © The Middleware Company The Employee Portal

18. © The Middleware Company Employee Portal Utilizes Security Adaptor Services Provide Login / Logout Capabilities Enable Password Change Provide roles based access -to pages -to portlets -to actions Authentication

19. © The Middleware Company Employee Portal Search for Employees Browse Departments Get Department Details Get Employee Details Organization Browser

20. © The Middleware Company Employee Portal View Task List See Task Details Add Tasks Update Tasks Link to Expenses Link to Reviews Task List Management

21. © The Middleware Company Employee Portal View Report List See Report Details Add Report Update Report Authorize Report Pay Report Utilization of Pay Roll Services Expense Reporting

22. © The Middleware Company Employee Portal View Review List See Review Details Add Review Update Review Validate Review Add Ratings Finalize Review Utilization of Pay Roll Services Employee Reviews

23. © The Middleware Company Product Data Services Two Product Databases Different Schemas Want single data service to access product information Enable category listing Enable product listing Needs to generate unique keys Add missing information Query across sources

24. © The Middleware Company Message Definition Messages are defined within the specification in a platform agnostic fashion:

25. © The Middleware Company Process Definition Processes are also defined in an agnostic way:

26. © The Middleware Company Implementation Guidelines Specification is platform agnostic Database schema will be supplied WSDL will be provided for all services Service testing will be provided by PushToTest Transport protocols must be adhered to Use of Portal server is recommended Web design should follow guidelines Standards should be adhered to where stated

27. © The Middleware Company Vendor Implementations Currently have commitment from the following vendors to provide implementations of the reference example: BEA Systems Diamelle Technologies IONA Technologies Microsoft Oracle Pramati Sun Microsystems Rogue Wave Software

28. © The Middleware Company Open Source Implementation Looking to build open source team Currently have a number of committed members Technologies we’re hoping to use include: -Hibernate for persistence -Spring as a lightweight container -Axis for web service provisioning -eXo as an enterprise portal -Twister as a BPEL4WS engine -Maven for build and management Will become reference implementation for SOA

29. © The Middleware Company Possible Interesting Things An additional 10 or so vendors want to enhance the spec Service management (Qos) an interesting add-on Jini message board talking about an implementation Some vendors considering CORBA implementation Would like to include Mobility component WSRP seems natural extension to Portal specification Including more standards is a must Launching an SOA Blueprints Wiki very soon Open Source Implementation home announced soon

30. © The Middleware Company Next Steps Q & A Goto soablueprints.comsoablueprints.com Download the specification Send us feedback Get involved in open source implementation

31. © The Middleware Company TheServerSide.com TheServerSide.NET MiddlewareRESEARCH.com Steve Wilkes Senior Middleware Maven 7