ufo砍价

@@ -37,6 +37,10 @@ public class BuyerOrderChangeEvent extends OrderChangeEvent {
         return buyerOrder;
     }
 
+    public OrderStatus getTargetStatus() {
+        return targetStatus;
+    }
+
     @Override
     public String toShortString() {
         return new StringBuilder(128).append("BuyerOrderChangeEvent[")
@@ -48,6 +52,9 @@ public class BuyerOrderChangeEvent extends OrderChangeEvent {
     }
 
     public enum BizCase {
-        CANCEL_BYBUYER, CANCEL_BYCS, CANCEL_BYSYSAUTO, CANCEL_BYSELLER, PAY_SUCCESS;
+        //cancel
+        CANCEL_BYBUYER, CANCEL_BYCS, CANCEL_BYSYSAUTO, CANCEL_BYSELLER,
+        //paySuccess
+        PAY_SUCCESS;
     }
 }

@@ -23,7 +23,7 @@ public abstract class OrderChangeEvent extends Event {
      *
      * @return
      */
-    abstract OrderCodeType getOrderCodeType();
+    public abstract OrderCodeType getOrderCodeType();
 
 
     @Override

 package com.yohoufo.order.service.listener;
 
-import com.yohoufo.dal.order.BuyerOrderMetaMapper;
-import com.yohoufo.dal.order.model.BuyerOrder;
-import com.yohoufo.order.constants.ActivityTypeEnum;
-import com.yohoufo.order.constants.MetaKey;
 import com.yohoufo.order.event.BuyerOrderChangeEvent;
-import com.yohoufo.order.event.OrderChangeEvent;
-import com.yohoufo.order.model.bo.ActivityBo;
-import com.yohoufo.order.service.proxy.BargainProxyService;
-import com.yohoufo.order.service.support.BuyerOrderMetaMapperSupport;
-import com.yohoufo.order.utils.LoggerUtils;
-import org.slf4j.Logger;
+import com.yohoufo.order.service.listener.processor.BuyerOrderChangeBusinessPostProcessor;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Component;
 
-import java.util.Objects;
-
 /**
  * Created by jiexiang.wu on 2019/5/23.
  */
 @Component
 public class BuyOrderChangeListener implements IOrderChangeListener<BuyerOrderChangeEvent> {
-    final private Logger logger = LoggerUtils.getBuyerOrderLogger();
-
-    @Autowired
-    private BuyerOrderMetaMapperSupport buyerOrderMetaMapperSupport;
 
     @Autowired
-    private BargainProxyService bargainProxyService;
-
-    @Override
-    public boolean shouldHandle(OrderChangeEvent event) {
-        return event instanceof BuyerOrderChangeEvent;
-    }
+    private BuyerOrderChangeBusinessPostProcessor businessPostProcessor;
 
     @Override
-    public void handleEvent(BuyerOrderChangeEvent buyerOrderChangeEvent) {
-        BuyerOrder buyerOrder = buyerOrderChangeEvent.getBuyerOrder();
-        if (Objects.equals(buyerOrder.getActivityType(), ActivityTypeEnum.BARGAIN.getCode())) {
-            //砍价订单
-            handleBargainOrderEvent(buyerOrderChangeEvent.getBizCase(), buyerOrder);
-        }
-    }
-
-    /**
-     * 砍价订单
-     *
-     * @param bizCase
-     * @param buyerOrder
-     */
-    private void handleBargainOrderEvent(BuyerOrderChangeEvent.BizCase bizCase, BuyerOrder buyerOrder) {
-        ActivityBo activityBo = buyerOrderMetaMapperSupport.selectByMetaKey(buyerOrder.getUid(), buyerOrder.getOrderCode(), MetaKey.ACTIVITY_KEY, ActivityBo.class);
-
-        if (activityBo == null || activityBo.getUserActivityId() < 0) {
-            logger.warn("[{}] has no userActivityId for orderCode: {}", buyerOrder.getOrderCode());
-            return;
-        }
+    public void apply(BuyerOrderChangeEvent changeEvent) {
+        BuyerOrderChangeEvent.BizCase bizCase = changeEvent.getBizCase();
         switch (bizCase) {
             case CANCEL_BYSYSAUTO:
             case CANCEL_BYBUYER:
             case CANCEL_BYCS:
             case CANCEL_BYSELLER:
-                bargainProxyService.cancelCutPriceUseRecord(buyerOrder.getUid(), buyerOrder.getOrderCode(), activityBo.getUserActivityId());
+                businessPostProcessor.cancel(changeEvent.getBuyerOrder(), changeEvent.getBizCase(), changeEvent.getTargetStatus());
                 break;
             case PAY_SUCCESS:
-                bargainProxyService.payCutPrice(buyerOrder.getUid(), buyerOrder.getOrderCode(), activityBo.getUserActivityId());
+                businessPostProcessor.paySuccess(changeEvent.getBuyerOrder(), changeEvent.getBizCase(), changeEvent.getTargetStatus());
                 break;
             default:
                 throw new IllegalStateException("unknown bizCase" + bizCase);

@@ -7,7 +7,5 @@ import com.yohoufo.order.event.OrderChangeEvent;
  */
 public interface IOrderChangeListener<T extends OrderChangeEvent> {
 
-    boolean shouldHandle(OrderChangeEvent event);
-
-    void handleEvent(T t);
+    void apply(T event);
 }
\ No newline at end of file

 package com.yohoufo.order.service.listener;
 
 import com.google.common.eventbus.Subscribe;
+import com.yohobuy.ufo.model.order.common.OrderCodeType;
 import com.yohoufo.common.alarm.EventBusPublisher;
 import com.yohoufo.common.alarm.IEventHandler;
 import com.yohoufo.common.alarm.SmsAlarmEvent;
+import com.yohoufo.order.event.BuyerOrderChangeEvent;
 import com.yohoufo.order.event.OrderChangeEvent;
 import com.yohoufo.order.utils.LoggerUtils;
 import org.slf4j.Logger;
@@ -22,7 +24,8 @@ public class OrderChangeListenerContainer implements IEventHandler<OrderChangeEv
 
     final private Logger logger = LoggerUtils.getBuyerOrderLogger();
 
-    private List<IOrderChangeListener> listeners = new ArrayList<>();
+    //购买者监听器
+    private List<IOrderChangeListener> buyerListeners = new ArrayList<>();
 
     @Autowired
     private EventBusPublisher eventBusPublisher;
@@ -33,7 +36,7 @@ public class OrderChangeListenerContainer implements IEventHandler<OrderChangeEv
 
     @PostConstruct
     public void initListener() {
-        listeners.add(buyOrderChangeListener);
+        buyerListeners.add(buyOrderChangeListener);
     }
 
     //触发异步处理
@@ -44,21 +47,27 @@ public class OrderChangeListenerContainer implements IEventHandler<OrderChangeEv
     @Override
     @Subscribe
     public void handle(OrderChangeEvent event) {
-        logger.info("handle order change event:{}", event);
+        if (event.getOrderCodeType() == OrderCodeType.BUYER_TYPE) {
+            buyerOrderChangeHandle((BuyerOrderChangeEvent) event, buyerListeners);
+        } else {
+            logger.warn("there is not any listener to handle event:{}", event);
+        }
+    }
+
+    private void buyerOrderChangeHandle(BuyerOrderChangeEvent event, List<IOrderChangeListener> listeners) {
+        logger.info("listeners apply buyerOrderChangeEvent:{}", event);
         for (IOrderChangeListener listener : listeners) {
             try {
-                if (listener.shouldHandle(event)) {
-                    listener.handleEvent(event);
-                }
+                listener.apply(event);
             } catch (Exception ex) {
-                logger.warn("handler:{} handle event:{} error", listener.getClass().getName(), event, ex);
+                logger.warn("{} apply buyerOrderChangeEvent:{} error", listener.getClass().getName(), event, ex);
                 //告警
                 EventBusPublisher.publishEvent(
-                        new SmsAlarmEvent("ufo.orderChangeEvent", "handle_exception",
+                        new SmsAlarmEvent("ufo.buyerOrderChangeEvent", "handle_exception",
                                 listener.getClass().getName() + "(" + event.toShortString() + ")", ex)
                 );
             }
         }
-        logger.info("handle order change event end");
+        logger.info("listeners apply buyerOrderChangeEvent end");
     }
 }

+package com.yohoufo.order.service.listener.processor;
+
+import com.google.common.collect.Lists;
+import com.yohobuy.ufo.model.order.common.OrderStatus;
+import com.yohoufo.common.alarm.EventBusPublisher;
+import com.yohoufo.common.alarm.SmsAlarmEvent;
+import com.yohoufo.dal.order.model.BuyerOrder;
+import com.yohoufo.order.constants.ActivityTypeEnum;
+import com.yohoufo.order.constants.MetaKey;
+import com.yohoufo.order.event.BuyerOrderChangeEvent;
+import com.yohoufo.order.model.bo.ActivityBo;
+import com.yohoufo.order.service.proxy.BargainProxyService;
+import com.yohoufo.order.service.support.BuyerOrderMetaMapperSupport;
+import com.yohoufo.order.utils.LoggerUtils;
+import org.slf4j.Logger;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+import java.util.Objects;
+
+/**
+ * Created by jiexiang.wu on 2019/5/24.
+ * 买家订单状态发生变化后,可以异步处理的业务逻辑，如
+ * 1.砍价订单需要通知活动模块
+ * 等等
+ */
+@Component
+public class BuyerOrderChangeBusinessPostProcessor {
+
+    final private Logger logger = LoggerUtils.getBuyerOrderLogger();
+
+    @Autowired
+    private BuyerOrderMetaMapperSupport buyerOrderMetaMapperSupport;
+
+    @Autowired
+    private BargainProxyService bargainProxyService;
+
+    //业务处理器
+    private List<BusinessProcessor> processors = Lists.newArrayList(
+            //砍价
+            new BargainBusinessProcessor()
+    );
+
+
+    /**
+     * 取消业务
+     *
+     * @param buyerOrder
+     * @param bizCase
+     * @param targetStatus
+     */
+    public void cancel(BuyerOrder buyerOrder, BuyerOrderChangeEvent.BizCase bizCase, OrderStatus targetStatus) {
+        BusinessProcessorContext context = buildBusinessProcessorContext(buyerOrder, bizCase, targetStatus);
+        for (BusinessProcessor processor : processors) {
+            try {
+                processor.cancel(context);
+            } catch (Exception ex) {
+                logger.warn("{} cancel error,context:{}", processor.getClass().getName(), context, ex);
+                //告警
+                EventBusPublisher.publishEvent(
+                        new SmsAlarmEvent("ufo.buyerOrderBusinessPostProcessor", "cancel_exception",
+                                processor.getClass().getName() + "(" + buyerOrder.getOrderCode() + ")", ex)
+                );
+            }
+        }
+    }
+
+
+    /**
+     * 支付成功
+     *
+     * @param buyerOrder
+     * @param bizCase
+     * @param targetStatus
+     */
+    public void paySuccess(BuyerOrder buyerOrder, BuyerOrderChangeEvent.BizCase bizCase, OrderStatus targetStatus) {
+        BusinessProcessorContext context = buildBusinessProcessorContext(buyerOrder, bizCase, targetStatus);
+        for (BusinessProcessor processor : processors) {
+            try {
+                processor.paySuccess(context);
+            } catch (Exception ex) {
+                logger.warn("{} paySuccess error,context:{}", processor.getClass().getName(), context, ex);
+                //告警
+                EventBusPublisher.publishEvent(
+                        new SmsAlarmEvent("ufo.buyerOrderBusinessPostProcessor", "paySuccess_exception",
+                                processor.getClass().getName() + "(" + buyerOrder.getOrderCode() + ")", ex)
+                );
+            }
+        }
+    }
+
+
+    public BusinessProcessorContext buildBusinessProcessorContext(BuyerOrder buyerOrder, BuyerOrderChangeEvent.BizCase bizCase, OrderStatus targetStatus) {
+        BusinessProcessorContext context = new BusinessProcessorContext();
+        context.buyerOrder = buyerOrder;
+        context.bizCase = bizCase;
+        context.targetStatus = targetStatus;
+        //sql超时，会在listenerContainer层告警
+        context.activityBo = buyerOrderMetaMapperSupport.selectByMetaKey(buyerOrder.getUid(), buyerOrder.getOrderCode(), MetaKey.ACTIVITY_KEY, ActivityBo.class);
+        return context;
+    }
+
+
+    public static class BusinessProcessorContext {
+        public BuyerOrder buyerOrder;
+        public BuyerOrderChangeEvent.BizCase bizCase;
+        //事件发生后的状态,可能为null
+        public OrderStatus targetStatus;
+        //活动信息
+        public ActivityBo activityBo;
+
+        @Override
+        public String toString() {
+            return "BusinessProcessorContext{" +
+                    "orderCode=" + buyerOrder.getOrderCode() +
+                    ", bizCase=" + bizCase +
+                    ", targetStatus=" + targetStatus +
+                    '}';
+        }
+    }
+
+    /**
+     * 业务处理
+     * 按照业务归类如下：
+     * 取消
+     * 支付成功
+     * 等等
+     */
+    private interface BusinessProcessor {
+        //取消
+        void cancel(BusinessProcessorContext context);
+
+        //支付成功
+        void paySuccess(BusinessProcessorContext context);
+    }
+
+    //砍价业务
+    private class BargainBusinessProcessor implements BusinessProcessor {
+
+        @Override
+        public void cancel(BusinessProcessorContext context) {
+            BuyerOrder buyerOrder = context.buyerOrder;
+            ActivityBo activityBo = context.activityBo;
+            if (shouldProcess(buyerOrder, activityBo)) {
+                bargainProxyService.cancelCutPriceUseRecord(buyerOrder.getUid(), buyerOrder.getOrderCode(), activityBo.getUserActivityId());
+            }
+        }
+
+        @Override
+        public void paySuccess(BusinessProcessorContext context) {
+            BuyerOrder buyerOrder = context.buyerOrder;
+            ActivityBo activityBo = context.activityBo;
+            if (shouldProcess(buyerOrder, activityBo)) {
+                bargainProxyService.payCutPrice(buyerOrder.getUid(), buyerOrder.getOrderCode(), activityBo.getUserActivityId());
+            }
+        }
+
+        public boolean shouldProcess(BuyerOrder buyerOrder, ActivityBo activityBo) {
+            if (!Objects.equals(buyerOrder.getActivityType(), ActivityTypeEnum.BARGAIN.getCode())) {
+                return false;
+            }
+            if (activityBo == null || activityBo.getUserActivityId() < 0) {
+                logger.warn("[{}] has no userActivityId", buyerOrder.getOrderCode());
+                return false;
+            }
+            return true;
+        }
+    }
+
+}