Using ManagedExecutorService and server-side callbacks

In this section, we're going to take a look at using a ManagedExecutorService instance for asynchronous request processing. I'm going to show you how to use CompletableFuture to run and resume asynchronous requests. We will talk about using a TimeoutHandler instance for fine-grained timer control, and we'll be using CompletionCallback and ConnectionCallback instances for even further control of the request processing.

Let's get started and switch to code. As usual, we prepare a template project to get started. The first thing we want to do is use a ManagedExecutorService instance. Thus, we will inject this instance into our REST resource:

@Resource
private ManagedEcecutorService executorService;

 

 

 

 

Then, we want to use this ManagedExecutorService instance to do some heavy processing, such as processing Fibonacci numbers. We will use the ManagedExecutorService instance and call the execute method on it. In this execute method, we then call...