WSIP(Web Service Interoperability Platform)

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WSIP(Web Service Interoperability Platform)

• Pyounguk Cho, Oracle Corporation
• Nilesh Junnarkar , Oracle Corporation

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Agenda

• Web Service status quo
• Interoperability challenges
• WSIP
• Demo
• Q A

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Where is Web Service today?

• Adoption
• Everybody understands what it is
• Ubiquitously adopted and deployed
• Popular for connecting platforms and applications
• Starting to go beyond basics
• Web service has been evolving(WS-)
• What are the pain points?
• Performance
• Complexity
• Acronyms
• Interoperability

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Web Services Interoperability

• Perception Web Services are the most
  interoperable technology available today as WSDL
  clearly defines the message contract
• Reality A lot of surprises!
• Mitigation efforts
• Web Services Interoperability (WS-I)
• Vendor-sponsored interop-events
• Developer community knowledge sharing
  (SOAPBuilders,)
• Tools
• Runtime relaxation

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Interoperability Challenges

• Potential sources of friction
• Complex schema definitions
• XML-language(Java, C, C/C,) impedance
• Loss of precision
• Unsigned data types
• WS- version mismatch
• Compositions
• Bugs in tools or stacks
• Namespace qualification
• Null values
• Empty values

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Interoperability Challenges(Cont.)

• Common guidelines and best practices available
• Dont try to be fancy with schema definitions
• Dont use RPC/Encoded
• Comply with WS-I Profiles
• .
• Assurance of interoperability remains
  challenging
• Following best practices does not guarantee
  anything
• Compositions for QoS
• Basic SOAP vs.
• WS-RM SAML XML-encryption MTOM
• Hard to diagnose and resolve
• Declarative, not procedural programming model
  (WSDL -gt SOAP)
• Supposed to be a black box to end users

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Interoperabilty Combinatorials

• Dimensions
• WS- JAX-
• WS- versions (WS-Addressing namespace
  2003/2004/2005)
• WS- compositions
• Development time tools and runtime stacks
• Stack versions(Axis 1.x/2.x, WSEx/WCF, ..)
• Exponential test cases

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Interoperability Assurance Measures

• Manual testing
• Time-consuming
• Learning-curve for different stacks
• Not scalable
• Error-prone
• Lack of expertise
• Any magic tool box? not yet

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Systematic Interoperability testing

• Requirements
• Scalable
• Minimal manual steps
• Coverage
• WS-
• Platforms/stacks
• Intelligence
• Knowledge-base
• Annotated test cases
• Golden images
• Troubles and remedies

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Web Services Interoperability Platform (WSIP)

• What WSIP is A Platform to
• Test deterministic product level Interoperability
  between Web Services vendors/platforms
• Identify interoperability issues early in
  development cycle
• Help reproduce and fix interoperability issues
• Scalable automation of interoperability
  regressions testing
• What WSIP is not
• A product you can buy

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Why WSIP?

• Help minimize the non-oracle application server
  learning curve
• Get to test interoperability right away No
  non-oracle WS platforms to install/ learn their
  tools Developer Productivity
• End-to-End testing with multiple WS vendors
• Capability beyond other SOA test tools
• Test true interoperability

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WSIP Features

• Hosted services for different WS platforms
• Profile a Web Service
• Dynamically generate, build and Execute a Client
• WSIP WSIL Browser
• Replay Mechanism
• WSDL repository with analyzed data
• ANT Tasks/JUNIT Test integration

• Analyze a WSDL using integrated WS-I Analyzer
• Auto Service generation and deployment

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WS Interoperability Platform
WSDL
Report
Service Endpoint
Simulation Client
Repository
Capture -Replay
Response
Response received

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Demo WSIP In Action
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Q A
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Future considerations

• Productization
• Continual coverage expansion
• New standards
• More platforms
• Knowledge repository
• Various test cases
• Results and error types
• Intelligence
• Root cause analysis for errors
• Prediction based on
• Client platform characteristics
• Service platform characteristics
• WSDL
• Remedy suggestion

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Further information

• Contact Info
• Pyounguk Cho (pyounguk.cho_at_oracle.com)
• Nilesh Junnarkar (nilesh.junnarkar_at_oracle.com)