| 1 | package com.hammurapi.eventbus.tests.fastfood; |
| 2 | |
| 3 | import java.util.concurrent.atomic.AtomicBoolean; |
| 4 | import java.util.concurrent.atomic.AtomicInteger; |
| 5 | |
| 6 | public class Dish { |
| 7 | |
| 8 | private static AtomicInteger INSTANCE_COUNTER = new AtomicInteger(); |
| 9 | |
| 10 | private AtomicBoolean consumed = new AtomicBoolean(false); |
| 11 | |
| 12 | private final int instanceId = INSTANCE_COUNTER.incrementAndGet(); |
| 13 | |
| 14 | /** |
| 15 | * Consumes dish |
| 16 | * @return true if dish successfully consumed. Dish can be consumed only once. |
| 17 | */ |
| 18 | public boolean consume() { |
| 19 | if (consumed.getAndSet(true)) { |
| 20 | System.err.println("Already consumed: "+this); |
| 21 | } |
| 22 | return true; |
| 23 | } |
| 24 | |
| 25 | public boolean isConsumed() { |
| 26 | return consumed.get(); |
| 27 | } |
| 28 | |
| 29 | @Override |
| 30 | public String toString() { |
| 31 | String cName = getClass().getName(); |
| 32 | int idx = cName.lastIndexOf('.'); |
| 33 | return cName.substring(idx+1)+" ("+instanceId+")"; |
| 34 | } |
| 35 | |
| 36 | } |