Using request-response messaging with JMS

This recipe shows you how to implement the request/reply design patterns over JMS. For this we need two queues, the RequestQueue where the request is sent to and consumed by the replier, and the ResponseQueue where the answer/reply is sent to by the replier and then consumed by the initial requester.

This is shown in the following diagram where on the left the requestor is implemented by a business service on OSB, and on the right the replier is implemented as a proxy service on OSB.

In a real case, the OSB normally only plays one role of either the requestor or the replier, and hence it is only on one side. On the other side, we would usually find legacy systems only capable of communicating through queues, such as a mainframe system.

Getting ready

For this recipe, we will use the two queues RequestQueue and ResponseQueue from the OSB Cookbook standard environment.

In order to start, we will use the setup from the recipe Consuming messages from a JMS...