Programming services with correlation sets

  • Authors:
  • Fabrizio Montesi;Marco Carbone

  • Affiliations:
  • IT University of Copenhagen, Denmark;IT University of Copenhagen, Denmark

  • Venue:
  • ICSOC'11 Proceedings of the 9th international conference on Service-Oriented Computing
  • Year:
  • 2011

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Abstract

Correlation sets define a powerful mechanism for routing incoming communications to the correct running session within a server, by inspecting the content of the received messages. We present a language for programming services based on correlation sets taking into account key aspects of service-oriented systems, such as distribution, loose coupling, open-endedness and integration. Distinguishing features of our approach are the notion of correlation aliases and an asynchronous communication model. Our language is equipped with formal syntax, semantics, and a typing system for ensuring desirable properties of programs with respect to correlation sets. We provide an implementation as an extension of the JOLIE language and apply it to a nontrivial real-world example of a fully-functional distributed user authentication system.