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dc.contributor.authorMEIER, RENEen
dc.date.accessioned2010-10-15T11:19:53Z
dc.date.available2010-10-15T11:19:53Z
dc.date.createdDecemberen
dc.date.issued2005en
dc.date.submitted2005en
dc.identifier.citationD. Dahlem, D. McKitterick, L. Nickel, J. Dowling, B. Biskupski, and R. Meier, Binding- and Port-Agnostic Service Composition using a P2P SOA, International ICSOC Workshop on Dynamic Web Processes (DWP 2005), Amsterdam, The Netherlands, December, IBM T.J. Watson Research Center, 2005, 61 - 72en
dc.identifier.otherYen
dc.identifier.urihttp://hdl.handle.net/2262/41070
dc.descriptionPUBLISHEDen
dc.description.abstractThe assumption of the availability of port information at design time of service compositions in Service-Oriented Architectures (SOAs) is not valid for an increasing number of hosts on the Internet that do not have a public, static IP address. Existing workflow engines do not support services deployed on such hosts, as service invocations require the availability of port information defined either in concrete WSDL definitions or within a deployment descriptor of the BPEL workflow engine. This paper presents a workflow engine that supports runtime look-up of service endpoints based on a P2P middleware. Using a service identifier based on a DHT identifier, Service Proxy objects that encapsulate port information are downloaded over the structured P2P network from the host where the service is deployed. A Service Proxy delegates service invocations to an abstract protocol adaptor framework that uses dynamic invocation mechanisms to provide a protocol-independent execution of remote services, e.g., over GIOP/IIOP or SOAP. This allows us to specify binding- and port-agnostic service compositions in BPEL using abstract WSDL and our service identifiers. To validate our approach, we extended the ActiveBPEL workflow engine to support the discovery and consumption of services using our P2P middleware and the abstract protocol adaptor.en
dc.description.sponsorshipThe work described in this paper was partly supported by the ?Information Society Technology? Programme of the Commission of the European Union under research contract IST-507953 (DBE).en
dc.format.extent61en
dc.format.extent72en
dc.language.isoenen
dc.publisherIBM T.J. Watson Research Centeren
dc.rightsYen
dc.subjectComputer scienceen
dc.subjectActiveBPEL workflowen
dc.titleBinding- and Port-Agnostic Service Composition using a P2P SOAen
dc.title.alternativeInternational ICSOC Workshop on Dynamic Web Processes (DWP 2005)en
dc.typeConference Paperen
dc.type.supercollectionscholarly_publicationsen
dc.type.supercollectionrefereed_publicationsen
dc.identifier.peoplefinderurlhttp://people.tcd.ie/rmeieren
dc.identifier.rssinternalid33103en
dc.identifier.rssurihttp://www.cs.tcd.ie/publications/tech-reports/reports.06/TCD-CS-2006-13.pdfen


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