1 / 31

SOA Blueprints

SOA Blueprints. Learning Best Practices and Sample Applications for SOA. Steve Wilkes Senior Middleware Maven 7 THE MIDDLEWARE COMPANY 09.22.2004. AGENDA. Why are we doing this? What are the goals? SOA Concepts The Reference Example The Specification Implementations.

herringm
Download Presentation

SOA Blueprints

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. SOA Blueprints Learning Best Practices and Sample Applications for SOA Steve Wilkes Senior Middleware Maven7 THE MIDDLEWARE COMPANY 09.22.2004

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

  3. 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. 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. SOA Concepts • SOA Much More Than Web Services • Common SOA Terms • Patterns • SOA Platform Requirements • Standards • Glossary

  6. 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. Common SOA Terms Common SOA Terms(the specification includes those highlighted in blue)

  8. 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. 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. 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. SOA Granularity

  12. 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. Standards Standards being considered for inclusion include: • WS-I • BPEL4WS • WS-Security • WS-Notification • Jini • WSRP • WS-Manageability

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

  15. 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 Security Mechanism • Provide security for: • New Applications • Legacy Applications • Provide indentity management • Automate employee security

  17. The Employee Portal

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

  19. Employee Portal Organization Browser • Search for Employees • Browse Departments • Get Department Details • Get Employee Details

  20. Employee Portal Task List Management • View Task List • See Task Details • Add Tasks • Update Tasks • Link to Expenses • Link to Reviews

  21. Employee Portal Expense Reporting • View Report List • See Report Details • Add Report • Update Report • Authorize Report • Pay Report • Utilization ofPay Roll Services

  22. Employee Portal Employee Reviews • View Review List • See Review Details • Add Review • Update Review • Validate Review • Add Ratings • Finalize Review • Utilization ofPay Roll Services

  23. Product Data Services • Two Product Databases • Different Schemas • Want single dataservice to accessproduct information • Enable categorylisting • Enable productlisting • Needs to generate unique keys • Add missing information • Query across sources

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

  25. Process Definition Processes are also defined in an agnostic way:

  26. 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. 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. 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. 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. Next Steps • Q & A • Goto soablueprints.com • Download the specification • Send us feedback • Get involved in open source implementation

  31. TheServerSide.com TheServerSide.NET MiddlewareRESEARCH.com Steve Wilkes Senior Middleware Maven7

More Related