P2P-DIET: A Query and Notification Service Based on Mobile Agents for Rapid Implementation of P2P Applications

The paradigm of data sharing peer-to-peer systems has recently become a hot area of research due to the popularity of file sharing applications such as Napster, Gnutella and KazaA that adopt the “information pull ” model. Peer-to-peer systems exhibit many interesting features like adaptivity, load balancing, self-organization, fault-tolerance and the ability to pool together large amounts of resources and put them at the disposal of a large community of users. In the last few years, the publish-subscribe paradigm has also emerged as a very promising one for the development of Internet applications concentrating on the “information push ” model. This dissertation presents the design and development of P2P-DIET, a peer-to-peer service that unifies the above two paradigms. The service has been im-plemented using the mobile agent system DIET Core developed in project DIET. Our service supports queries, subscriptions and notifications in a single unifying framework, and can be used for building various peer-to-peer applications lik