주문시 상품 변경 추가

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

@@ -2,9 +2,15 @@ package com.example.template;
 
 import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.databind.ObjectMapper;
+import com.google.gson.Gson;
+import com.google.gson.JsonObject;
+import com.google.gson.JsonParser;
 import org.apache.kafka.clients.producer.ProducerRecord;
 import org.springframework.beans.BeanUtils;
+import org.springframework.core.env.Environment;
+import org.springframework.http.ResponseEntity;
 import org.springframework.kafka.core.KafkaTemplate;
+import org.springframework.web.client.RestTemplate;
 
 import javax.persistence.*;
 
@@ -28,13 +34,33 @@ public class Order {
     @PostPersist
     private void publishOrderPlaced() {
         KafkaTemplate kafkaTemplate = Application.applicationContext.getBean(KafkaTemplate.class);
+        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();
+        }
+
+        String productUrl = env.getProperty("productUrl") + "/products/" + productId;
+
+        // 1. checkInventory
+        ResponseEntity<String> productEntity = restTemplate.getForEntity(productUrl, String.class);
+        System.out.println(productEntity.getStatusCode());
+        System.out.println(productEntity.getBody());
+
+        JsonParser parser = new JsonParser();
+        JsonObject jsonObject = parser.parse(productEntity.getBody()).getAsJsonObject();
+
         OrderPlaced orderPlaced = new OrderPlaced();
         try {
             orderPlaced.setOrderId(id);
+
+            this.setPrice(jsonObject.get("price").getAsInt());
+            this.setProductName(jsonObject.get("name").getAsString());
+
             BeanUtils.copyProperties(this, orderPlaced);
             json = objectMapper.writeValueAsString(orderPlaced);
         } catch (JsonProcessingException e) {

src/main/java/com/example/template/config/RestTemplateConfig.java

@@ -0,0 +1,22 @@
+package com.example.template.config;
+
+import com.fasterxml.jackson.databind.ObjectMapper;
+import org.springframework.context.annotation.Bean;
+import org.springframework.context.annotation.Configuration;
+import org.springframework.http.converter.json.MappingJackson2HttpMessageConverter;
+import org.springframework.web.client.RestTemplate;
+
+
+@Configuration
+public class RestTemplateConfig {
+
+	@Bean
+	RestTemplate restTemplate() {
+		RestTemplate restTemplate = new RestTemplate();
+		MappingJackson2HttpMessageConverter converter = new MappingJackson2HttpMessageConverter();
+		converter.setObjectMapper(new ObjectMapper());
+		restTemplate.getMessageConverters().add(converter);
+		return restTemplate;
+	}
+    
+}

src/main/resources/application.yml

@@ -23,6 +23,9 @@ logging:
     org:
       hibernate:
         type: trace
+
+productUrl: http://localhost:8085
+
 server:
   port: 8081
 ---
@@ -32,3 +35,5 @@ spring:
     bootstrap-servers: my-kafka.kafka.svc.cluster.local:9092
     consumer:
       enable-auto-commit: true
+
+productUrl: http://product:8085