The Research For Enterprise Application Integration Based Reliability: Framework,Mapping And Message Routing

How to make a secure and efficient system of enterprise application integration is an issue of concern to the academic world and the industry all the time.This paper consists of four parts. In the first part, the service-oriented architecture (Service-Oriented Architecture, SOA) is studied based on the understanding of relevant enterprise application integration (EAI) technology. The second part has combined the former cognition and carried out a scalable and reliable service-oriented enterprise integration system WSTransact throught the introduction of intermediary service concept.The third is about the design and implementation of a semi-automatic Service Mapper (Semi-Automatic Service Mapper, SAMS) aiming at the problems of WSTransact in service like the heavy workload and error-prone manual mapping. The fourth is in regard to the solution of routing problem in the service of WSTransact based on JBI specification,From initial point-to-point application integration to middleware-based integration, the problem of enterprise integration has not been solved perfectly until the coming and development of Web service and related technology completed the service-oriented integration system.A service-oriented enterprise integration system WSTransact has been designed and implemented with reference to the enterprise integration and Web services system specification. WSTransact is a loosely coupled integration system with great flexibility and scalability. Through the introduction of intermediary service, it combines Web service by adopting the loosely coupled way of BPEL and achieves dynamic selection, integration and nesting of Web service so that enterprises can call Web service easily by considering the overall situation. WSTransact has not only solved the problems causing by Web service's own characteristics,dealed with the Web services brought about by its own characteristics, but also introduced the work mechanism to ensure the reliability and consistency of process.A Semi-Automatic Service Mapper is designed in order to implement the mapping between Mediation Services and Web Services.Set up on the open architecture, this Mapper releases the users from heavy and error-prone work by proving them with a series of candidate mapping through the analysis of the names and types of Schema elements, and achieves a fast mapping in Service.Finally, the corresponding system function and performance is tested.The test result shows that it has correctly achieved the various functions to meet the need of integrated service in aspects of performance and flexibility.To meet the requirements of WSTransact in performance,flexibility, scalability,this paper is set in the background of JBI specification , implements a service-oriented integration of message router which has the functions such as the creation of message exchange, synchronous and asynchronous message calls, the registration and management of service information, and routing distribution, and discusses model concurrent, asynchronous message, cross case and other issues round the JBI container message router (Normalized Message Router).