springboot责任链模式实现多级校验

@Data
@AllArgsConstructor
@NoArgsConstructor
@Builder
public class Order {

    private Integer creditScore;
    private Integer quantity;
}

public interface OrderHandler {

    boolean handle(Order order);
}

@Component
public class CreditHandler implements OrderHandler{
    @Override
    public boolean handle(Order order) {
        if (order.getCreditScore() % 2 != 0){
            System.out.println("信用不足");
            return false;
        }
        return true;
    }
}

@Component
public class StockHandler implements OrderHandler{
    @Override
    public boolean handle(Order order) {
        if (order.getQuantity() > 20){
            System.out.println("库存不足");
            return false;
        }
        return true;
    }
}

@Component
public class OrderHandlerChain {

    private final List<OrderHandler> handlers;

    public OrderHandlerChain(List<OrderHandler> handlers){
        this.handlers = handlers;
    }

    public boolean process(Order order){
        for (OrderHandler handler : handlers) {
            if (!handler.handle(order)){
                return false;
            }
        }
        return true;
    }
}

@Component
public class OrderService {

    private final OrderHandlerChain handlerChain;

    private OrderService(OrderHandlerChain handlerChain){
        this.handlerChain = handlerChain;
    }

    public boolean processOrder(Order order){
        boolean process = handlerChain.process(order);
        if (process){
            System.out.println("校验成功");
        }
        return process;
    }
}

@SpringBootTest
public class OrderServiceTest {

    @Autowired
    private OrderService orderService;

    @Test
    public void testOrderProcess(){
        Order order = new Order(2, 5);
        orderService.processOrder(order);

        Order order1 = new Order(2, 5);
        orderService.processOrder(order1);

        Order order2 = new Order(2, 21);
        orderService.processOrder(order2);
    }

}