The broker architectural pattern is used to architect distributed systems. These systems make use of a middleman component to coordinate and communicate between components. This decoupling of components removes dependencies and can result in greater system-wide efficiencies.
The middleman component's mission means that it is essential for it to be able to receive requests and broker the proper service or request. As illustrated by the following diagram, the middleman brokers requests from both the Server and the Client:
The broker architectural pattern is similar to the facade design pattern covered in Chapter 5, Structural Design Patterns. The facade design pattern established an interface to serve as a medium between the system and its subsystems.
There is an option in the broker architectural pattern for the middleman...
