The Research Of The Dynamic Service Routing In The Enterprise Service Bus

SOA Service Oriented Architecture emphasis on the dynamic binding and loose coupling in enterprise integration, this needs the ESB enterprise service bus to provide a dynamic and reliable service routing mechanism which can support the selection and adaption of the service providers. But most of the ESB products lack the support for dynamic service routing and the p2p close coupling with static configuring is still the main method for the message transporting in the bus. Therefore, the research of a reliable and dynamic service routing mechanism is very meaningful.For the issues of the reliability and efficiency in dynamic service routing, this thesis proposes a new dynamic service routing model, called as ERDSR (Efficient and Reliable Dynamic Service Routing) model. This model mainly takes the following two things into consideration:the first is how to change the routing path in the routing table, and the second is how to redirect the request message when the service provider can’t respond properly. This model first uses the abstract service name to represent the routing path and then uses this abstract name to search all the available service providers and choose one to respond to the request message and use it to replace the abstract service name in the routing table. On the other hand this model employing a listener to supervise the state of service provider to dynamically maintain the abstract routing table. When the service provider encounteres some problems the listener will use the candidate service providers to respond and use the new address to replace the old un-functional address in the abstract routing path table.Runing of the ERDSR model has shown that it can improve the efficiency at some point and maintain the reliability of service routing at the same time.