Network dispatcher: a connection router for scalable Internet services
WWW7 Proceedings of the seventh international conference on World Wide Web 7
Concurrent Programming in Java: Design Principles and Patterns
Concurrent Programming in Java: Design Principles and Patterns
A performance study of the Squid proxy on HTTP/1.0
World Wide Web
Multi-protocol web services for enterprises and the grid
EuroWeb'02 Proceedings of the 2002 international conference on EuroWeb
Building web services for scientific grid applications
IBM Journal of Research and Development
A P2P SOA enabling group collaboration through service composition
Proceedings of the 5th international conference on Pervasive services
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In this paper we test the suitability of Java to implement a scalable Web Service that solves a set of problems related to peer-to-peer interactions between Web Services that are behind firewalls or not generally accessible. In particular we describe how to enable reliable and long running conversations through firewalls betweenWeb Service peers that have no accessible network endpoints. Our solution is to implement in Java a Web Services Dispatcher (WSD) that is an intermediary service that forwards messages and can facilitate message exchanges by supporting SOAP RPC over HTTP and WS-Addressing for asynchronous messaging. We describe how Web Service clients that have no network endpoints, such as applets, can become Web Service peers by using an additional message store-and-forward service ("mailbox"). Then we conduct a set of experiments to evaluate performance of Java implementation in realistic Web Service scenarios, involving intercontinental tests between France and the US.