Client%20Side%20Library

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Client Side Library

• Dr. Sheng Jiang
• Provenance Team
• sj_at_ecs.soton.ac.uk

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Concept and role of CSL

• Client Side Library (CSL) is a collection of
  functions, which
• allows provenance-aware applications to
  communicate with provenance store services
• helps application developers enforce architecture
  rules
• An implementation of the CSL should contain at
  least one of query library, record library and
  management library
• CSL is intends to be embedded as part of
  provenance-aware applications

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Interaction of Application
Host A
Host B
Message
Actor A
Actor B
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Provenance-aware Application
Host A
Host B


Actor A
Actor B
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Layered Model of CSL
Applications
Client Side Library
Provenance Store Server
Server API
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Server API

• Defined our provenance store interface in several
  WSDL files
• WSRF compatible
• Generated stubs from these WSDL
• Using WSDL2Java from the GT4
• Used as server API
• Security is not enabled yet
• Too complicated to be used by application
  developers

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Application API

• Simple interfaces and data structures
• Re-usable information
• Helper facilities
• Relationship helper
• Documentation style helper, Policy helper,
  P-Header helper, Tracer helper (not available
  yet)
• Is Mapped to the server API using utilities

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Simple Example

• ProvenanceService ps new ProvenanceServiceImpl
  (recordPort, xQueryPort, pQueryPort)
• InteractionRecord irInstance ps.newInteractionRe
  cord (msgSink, msgSource, asserter, viewKind)
• GlobalPAssertionKey gpakIPA irInstance.addIntera
  ctionPAssertion(message, documentationStyle)
• RecordResult rResult irInstance.record()