주문 취소 이벤트 발생

src/main/java/com/example/template/OrderCancelled.java

@@ -0,0 +1,69 @@
+package com.example.template;
+
+public class OrderCancelled extends AbstractEvent{
+
+    private Long productId;
+    private Long orderId;
+    private String productName;
+    private int quantity;
+    private int price;
+    private String customerId;
+    private String customerName;
+
+    public Long getProductId() {
+        return productId;
+    }
+
+    public void setProductId(Long productId) {
+        this.productId = productId;
+    }
+
+    public Long getOrderId() {
+        return orderId;
+    }
+
+    public void setOrderId(Long orderId) {
+        this.orderId = orderId;
+    }
+
+    public String getProductName() {
+        return productName;
+    }
+
+    public void setProductName(String productName) {
+        this.productName = productName;
+    }
+
+    public int getQuantity() {
+        return quantity;
+    }
+
+    public void setQuantity(int quantity) {
+        this.quantity = quantity;
+    }
+
+    public int getPrice() {
+        return price;
+    }
+
+    public void setPrice(int price) {
+        this.price = price;
+    }
+
+    public String getCustomerId() {
+        return customerId;
+    }
+
+    public void setCustomerId(String customerId) {
+        this.customerId = customerId;
+    }
+
+    public String getCustomerName() {
+        return customerName;
+    }
+
+    public void setCustomerName(String customerName) {
+        this.customerName = customerName;
+    }
+
+}

src/main/java/com/example/template/OrderPlaced.java

@@ -1,7 +1,5 @@
 package com.example.template;
 
-import java.io.Serializable;
-
 public class OrderPlaced extends AbstractEvent {
 
     private Long productId;

src/main/java/com/example/template/ProductService.java

@@ -42,6 +42,17 @@ public class ProductService {
 
             }
 
+            /**
+             * 주문 취소시, 수량을 늘인다
+             */
+            if( orderPlaced.getEventType().equals(OrderCancelled.class.getSimpleName())){
+                Optional<Product> productOptional = productRepository.findById(orderPlaced.getProductId());
+                Product product = productOptional.get();
+                product.setStock(product.getStock() + orderPlaced.getQuantity());
+
+                productRepository.save(product);
+            }
+
         }catch (Exception e){
 
         }