JXTA P2P, Web Services and WS-Talk Royal Holloway, University of - - PowerPoint PPT Presentation

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JXTA P2P, Web Services and WS-Talk Royal Holloway, University of - - PowerPoint PPT Presentation

May 06, 2023 186 likes •299 views

JXTA P2P, Web Services and WS-Talk Royal Holloway, University of London Fionn Murtagh Dimitri Zervas Pedro Contreras Munich, 24 of June 2005 Why P2P? Scalable Decentralise Self-organised Performance

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SLIDE 1

Fionn Murtagh Dimitri Zervas Pedro Contreras

Royal Holloway, University of London

Munich, 24 of June 2005

JXTA P2P, Web Services and WS-Talk

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SLIDE 2

Why P2P?

  • Scalable
  • Decentralise
  • Self-organised
  • Performance
  • Interoperable
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SLIDE 3

Why JXTA?

  • P2P organisation
  • Set of language independent protocols
  • Open source
  • Active developers community
  • Implementations in Java and C

– Free, platform independent

  • XML base
  • Support for security protocols like SSL
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SLIDE 4

How JXTA works?

  • Protocols

– P. Discovery P., P. Resolver P. (generic query), P. Information P. (net monitoring), Pipe Binding P. (addressable messaging), Rendezvous P. (propagation service), Endpoint routing P.

  • Communication channel is called pipe
  • Communication based in XML

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– Module class adv., Module specification adv., Module implementation adv., Pipe adv., Peer group adv., Peer adv.

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JXTA / SOAP / WSDL Integration

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JXTA and SOAP

  • SOAP usually are put in HTML request/response

and handle by a web server

  • We want send SOAP messages using JXTA pipes

– Some work had been done in “JXTA-SOAP” project using Apache Axís

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SLIDE 7

JXTA and WSDL

  • Advertise WSDL service in JXTA through a

Module Specification Advertisement

Module Specification Adv. (XML File) WSDL Service Description (XML File)

<MSA> …….. …….. <WSDL> …….. <service 1> <service 2> <service.. > <service n> </WSDL> </MSA>

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SLIDE 8

Current and Future Work

  • Integration and Deployment

JXTA/SOAP

  • Integration and Deployment

JXTA/SOAP/WSDL

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Problems to tackle

  • Determine search method in P2P

context

  • Libraries (we’d like to use standard libraries for web

service)

  • Ontology integration (We have to decide

which standard RDF?, DAML-OIL?, OWL?, OWL-S?

etc..)

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SLIDE 10

Conclusion

  • We have a pure JXTA P2P service registry

working, then JXTA ✔

  • JXTA/SOAP should work ±

(Based in kevin Burton, Daniel Elenius work)

  • JXTA/WSDL should work ±

(Based in Daniel Elenius works)

Where we are?