Java asynchronous socket-response data acquisition scheme

There is a need for a cloud central controller to connect multiple cloud Terminal controllers with multiple sockets in a project.

Because of the large number of terminals, the concurrent requirements for the whole central controller are proposed, but the process of acquiring the socket response is a continuous blocking process with performance risks. The normal runnable is not able to return processing results.

The author also thinks about the scheme of using Furthertask to do asynchronous callbacks. However, the results of the response are likely to be used globally. So he thought of a plan. If there are deficiencies, please correct me.

Java asynchronous socket-response data acquisition scheme