浅谈JAVA工作流的优雅实现方式

 <dependency>
      <groupId>commons-chain</groupId>
      <artifactId>commons-chain</artifactId>
      <version>1.2</version>
    </dependency>

/**
 * 退商旅卡Cash
 * Created by 一代天骄 on 2018/7/1.
 */
@Slf4j
public class RefundBusinessCardCommand implements Command{
  public boolean execute(Context context) throws Exception {
    RefundContext refundContext = (RefundContext) context;
    log.info("orderId:{} 退款开始,第一步：退商旅卡，金额：{}",refundContext.getOrderId(),"10");
    return false;
  }
}

/**
 * 退现金
 * Created by 一代天骄 on 2018/7/1.
 */
@Slf4j
public class RefundCashCommand implements Command {
 
  public boolean execute(Context context) throws Exception {
    RefundContext refundContext = (RefundContext) context;
    log.info("orderId:{}退款开始,第二步：退现金，金额：{}",refundContext.getOrderId(),"5");
    return false;
  }
}

/**
 * 退优惠券
 * Created by 一代天骄 on 2018/7/1.
 */
@Slf4j
public class RefundPromotionCommand implements Command{
 
 
  public boolean execute(Context context) throws Exception {
    RefundContext refundContext = (RefundContext) context;
    log.info("orderId:{} 退款开始,第二步：退优惠券，金额：{}",refundContext.getOrderId(),"20");
    return false;
  }
}

/**
 * Created by 一代天骄 on 2018/7/1.
 */
@Data
public class RefundContext extends ContextBase {
 
  /**
   * 订单号
   */
  private Integer orderId;
 
 
}

/**
 *
 * 退票的工作流实现
 * Created by 一代天骄 on 2018/7/1.
 */
public class RefundTicketChain extends ChainBase {
 
  public void init() {
    //退商旅卡
    this.addCommand(new RefundBusinessCardCommand());
    //退现金
    this.addCommand(new RefundCashCommand());
    //退优惠券
    this.addCommand(new RefundPromotionCommand());
  }
 
 
  public static void main(String[] args) throws Exception {
    RefundTicketChain refundTicketChain = new RefundTicketChain();
    refundTicketChain.init();
    RefundContext context = new RefundContext();
    context.setOrderId(1621940242);
    refundTicketChain.execute(context);
  }
}