【设计模式】JAVA Design Patterns——Active Object（活动对象设计模式）

public abstract class ActiveCreature{
  private final Logger logger = LoggerFactory.getLogger(ActiveCreature.class.getName());
 
  private BlockingQueue<Runnable> requests;
  
  private String name;
  
  private Thread thread;
 
  public ActiveCreature(String name) {
    this.name = name;
    this.requests = new LinkedBlockingQueue<Runnable>();
    thread = new Thread(new Runnable() {
        @Override
        public void run() {
          while (true) {
            try {
              requests.take().run();
            } catch (InterruptedException e) { 
              logger.error(e.getMessage());
            }
          }
        }
      }
    );
    thread.start();
  }
  
  public void eat() throws InterruptedException {
    requests.put(new Runnable() {
        @Override
        public void run() { 
          logger.info("{} is eating!",name());
          logger.info("{} has finished eating!",name());
        }
      }
    );
  }
 
  public void roam() throws InterruptedException {
    requests.put(new Runnable() {
        @Override
        public void run() { 
          logger.info("{} has started to roam and the wastelands.",name());
        }
      }
    );
  }
  
  public String name() {
    return this.name;
  }
}

public class Orc extends ActiveCreature {
 
  public Orc(String name) {
    super(name);
  }
 
}

  public static void main(String[] args) {  
    var app = new App();
    app.run();
  }
  
  @Override
  public void run() {
    ActiveCreature creature;
    try {
      for (int i = 0;i < creatures;i++) {
        creature = new Orc(Orc.class.getSimpleName().toString() + i);
        creature.eat();
        creature.roam();
      }
      Thread.sleep(1000);
    } catch (InterruptedException e) {
      logger.error(e.getMessage());
    }
    Runtime.getRuntime().exit(1);
  }