상품에 OneToMany 로직 추가

README.md

@@ -1 +1,2 @@
 # orders
+http http://localhost:8081/orders productId=2 quantity=3 customerId=1@uengine.org

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

@@ -1,6 +1,13 @@
 package com.example.template;
 
+import com.example.template.config.kafka.KafkaProcessor;
+import com.fasterxml.jackson.core.JsonProcessingException;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.springframework.messaging.MessageChannel;
+import org.springframework.messaging.MessageHeaders;
+import org.springframework.messaging.support.MessageBuilder;
 import org.springframework.stereotype.Service;
+import org.springframework.util.MimeTypeUtils;
 
 public class AbstractEvent {
 
@@ -23,4 +30,37 @@ public class AbstractEvent {
         this.timestamp = timestamp;
     }
 
+    public boolean isMe(){
+        return getEventType().equals(getClass().getSimpleName());
+    }
+
+    public String toJson(){
+        ObjectMapper objectMapper = new ObjectMapper();
+        String json = null;
+
+        try {
+            json = objectMapper.writeValueAsString(this);
+        } catch (JsonProcessingException e) {
+            throw new RuntimeException("JSON format exception", e);
+        }
+
+        return json;
+    }
+
+    public void sendMessage(String json){
+        if( json != null ){
+
+            /**
+             * spring streams 방식
+             */
+            KafkaProcessor processor = Application.applicationContext.getBean(KafkaProcessor.class);
+            MessageChannel outputChannel = processor.outboundTopic();
+
+            outputChannel.send(MessageBuilder
+                    .withPayload(json)
+                    .setHeader(MessageHeaders.CONTENT_TYPE, MimeTypeUtils.APPLICATION_JSON)
+                    .build());
+
+        }
+    }
 }

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

@@ -42,10 +42,7 @@ public class Order {
     @ExceptionHandler(OrderException.class)
     private void publishOrderPlaced(){
         RestTemplate restTemplate = Application.applicationContext.getBean(RestTemplate.class);
-
         Environment env = Application.applicationContext.getEnvironment();
-        ObjectMapper objectMapper = new ObjectMapper();
-        String json = null;
 
         if( productId == null ){
             throw new RuntimeException();
@@ -74,34 +71,16 @@ public class Order {
             }
         }
 
-        OrderPlaced orderPlaced = new OrderPlaced();
-        try {
-            orderPlaced.setOrderId(id);
-            BeanUtils.copyProperties(this, orderPlaced);
-            json = objectMapper.writeValueAsString(orderPlaced);
-        } catch (JsonProcessingException e) {
-            throw new RuntimeException("JSON format exception", e);
-        }
+        OrderPlaced orderPlaced = new OrderPlaced(this);
+        orderPlaced.sendMessage(orderPlaced.toJson());
+    }
 
-        // 2. 주문이 발생함 이벤트 발송
-        /**
-         * spring kafka 방식
-         */
-//            Environment env = Application.applicationContext.getEnvironment();
-//            String topicName = env.getProperty("eventTopic");
-//            ProducerRecord producerRecord = new ProducerRecord<>(topicName, json);
-//            kafkaTemplate.send(producerRecord);
+    public Long getId() {
+        return id;
+    }
 
-        /**
-         * spring streams 방식
-         */
-        KafkaProcessor processor = Application.applicationContext.getBean(KafkaProcessor.class);
-        MessageChannel outputChannel = processor.outboundTopic();
-
-        outputChannel.send(MessageBuilder
-                .withPayload(json)
-                .setHeader(MessageHeaders.CONTENT_TYPE, MimeTypeUtils.APPLICATION_JSON)
-                .build());
+    public void setId(Long id) {
+        this.id = id;
     }
 
     public Long getProductId() {

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

@@ -23,6 +23,18 @@ public class OrderPlaced extends AbstractEvent{
         this.timestamp = defaultSimpleDateFormat.format(new Date());
     }
 
+    public OrderPlaced(Order order){
+        this();
+        this.setProductId(order.getProductId());
+        this.setProductName(order.getProductName());
+        this.setOrderId(order.getId());
+        this.setQuantity(order.getQuantity());
+        this.setPrice(order.getPrice());
+        this.setCustomerId(order.getCustomerId());
+        this.setCustomerName(order.getCustomerName());
+        this.setCustomerAddr(order.getCustomerAddr());
+    }
+
     public String getStateMessage() {
         return stateMessage;
     }

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

@@ -18,9 +18,6 @@ import java.util.Optional;
 @Service
 public class OrderService {
 
-    @Autowired
-    private KafkaTemplate kafkaTemplate;
-
     @Autowired
     private ProductRepository productRepository;
 
@@ -38,16 +35,15 @@ public class OrderService {
         ProductChanged productChanged = null;
         try {
             productChanged = objectMapper.readValue(message, ProductChanged.class);
-            if( productChanged.getEventType().equals(ProductChanged.class.getSimpleName())){
+            if( productChanged.isMe()){
+                Product product = new Product();
+                product.setId(productChanged.getProductId());
+                product.setStock(productChanged.getProductStock());
+                product.setName(productChanged.getProductName());
+                product.setPrice(productChanged.getProductPrice());
 
+                productRepository.save(product);
             }
-            Product product = new Product();
-            product.setId(productChanged.getProductId());
-            product.setStock(productChanged.getProductStock());
-            product.setName(productChanged.getProductName());
-            product.setPrice(productChanged.getProductPrice());
-
-            productRepository.save(product);
 
         }catch (Exception e){