Architectural Patterns

Reply queue

In some scenarios, it is required to send a response back to an event request. In such situations, it is required to have a response or reply queue to provide support. The following diagram depicts one such example. From the diagram, it is clear that the response needs to be sent back to the appropriate event collector. For example, if the incoming request is in HTTP format and is sent by the HTTP collector into the event queue, then the response has to be sent back to the source through the HTTP collector only. The point to be noted here is that the responses are not recorded in the event log: