A Novel Way of Providing Dynamic Adaptability and Invocation of JADE Agent Services from P2P JXTA Using Aspect Oriented Programming

Rapid development of the Internet and increasing number of available Web services has generated a need for tools and environments facilitating automated composition of atomic Web services into more complex Web processes. JADE is an agent development environment where Web services and agents can be linked together to enable semantic Web applications. However, the current JADE message transportation protocols do not allow agent communication through firewalls and network address translators (NAT-s). Fortunately, the firewall/NAT issue can be solved by using the current JXTA implementation for agent communication. In this paper we describe our efforts to incorporate JXTA protocols into JADE for facilitating inter-agent communication over the Internet. We also describe the design and implementation of an agent-based Web service composition environment, where service registration and discovery are resolved using the JXTA advertisements. By combining the capabilities of JADE and JXTA, agent-based Web service applications can be supported in JADE at a higher level of abstraction. In this paper we are using Aspect oriented programming (AOP) to enable dynamic adaptation at the time of invoking Agent web services in P2P network. We propose an approach to implement dynamic adaptability especially in existing Agent Services, p2p JXTA-WS programs and Aspect weaving in P2P JXTA using AOP. We have used AspectJ; Java based language to create aspects in Eclipse supported framework.