socket.io java ack take wait future

In Java, when using the `socket.io` library, you can use the `Ack` interface to handle acknowledgments in socket communication. The `Ack` interface allows you to send acknowledgments from the server to the client or vice versa.

To wait for an acknowledgment using a `Future`, you can follow these steps:

1. Create an instance of a `CompletableFuture`:

CompletableFuture<Object> future = new CompletableFuture<>();

2. Emit the event with the acknowledgment callback:

socket.emit("eventName", data, (Ack) args -> {
    // Handle acknowledgment
    future.complete(args[0]); // Complete the future with the acknowledgment data
});

3. Wait for the acknowledgment using the `get()` method of the `CompletableFuture`:

try {
    Object acknowledgmentData = future.get(); // Waits for the acknowledgment and retrieves the data
    // Handle the acknowledgment data
} catch (InterruptedException | ExecutionException e) {
    // Handle any exceptions
}

By using a `CompletableFuture`, you can wait for the acknowledgment response and handle it accordingly.