// concurrent/FrostedCake.java

// (c)2021 MindView LLC: see Copyright.txt

// We make no guarantees that this code is fit for any purpose.

// Visit http://OnJava8.com for more book information.

import java.util.concurrent.*;

import java.util.stream.*;

import onjava.Nap;

final class Frosting {

private Frosting() {}

static CompletableFuture<Frosting> make() {

new Nap(0.1);

return CompletableFuture

.completedFuture(new Frosting());

}

}

public class FrostedCake {

public FrostedCake(Baked baked, Frosting frosting) {

new Nap(0.1);

}

@Override public String toString() {

return "FrostedCake";

}

public static void main(String[] args) {

Baked.batch().forEach(baked -> baked

.thenCombineAsync(Frosting.make(),

(cake, frosting) ->

new FrostedCake(cake, frosting))

.thenAcceptAsync(System.out::println)

.join());

}

}