// concurrent/Workable.java
// (c)2017 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 onjava.Nap;

public class Workable {
 String id;
 final double duration;
 public Workable(String id, double duration) {
 this.id = id;
 this.duration = duration;
 }
 @Override
 public String toString() {
 return "Workable[" + id + "]";
 }
 public static Workable work(Workable tt) {
 new Nap(tt.duration); // Seconds
 tt.id = tt.id + "W";
 System.out.println(tt);
 return tt;
 }
 public static CompletableFuture<Workable>
 make(String id, double duration) {
 return
 CompletableFuture.completedFuture(
 new Workable(id, duration))
 .thenApplyAsync(Workable::work);
 }
}