Business service Directory provides service routing information that the ESB is relying on, while supporting communications between service requestors and providers.
业务服务目录提供ESB所依赖的服务路由信息，同时支持服务请求者和提供者之间的通信。
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The ESB provides a distributed infrastructure while maintaining centralization of control, requiring some form of service routingdirectory and perhaps a business service directory as well.
You have two options, the first is to write a pre-processing exit for the File Directory Receiver that will set the routing information required by Partner Gateway.