[Order API TDD] JPA 적용하기]

product-order-service/README.md

@@ -148,6 +148,8 @@ final UpdateProductRequest request = new UpdateProductRequest(name, price, disco
 
 **JPA 적용**
 
+> [JPA 적용하기]()
+
 ---
 
 Point.

product-order-service/src/main/java/com/example/productorderservice/order/OrderRepository.java

@@ -2,5 +2,5 @@
 
 import org.springframework.data.jpa.repository.JpaRepository;
 
-interface OrderRepository extends JpaRepository<Order, Long> {
+public interface OrderRepository extends JpaRepository<Order, Long> {
 }

product-order-service/src/main/java/com/example/productorderservice/payment/Payment.java

@@ -1,14 +1,23 @@
 package com.example.productorderservice.payment;
 
 import com.example.productorderservice.order.Order;
+import jakarta.persistence.*;
+import lombok.AccessLevel;
 import lombok.Getter;
+import lombok.NoArgsConstructor;
 import org.springframework.util.Assert;
 
+@Entity
+@Table(name = "payment")
 @Getter
+@NoArgsConstructor(access = AccessLevel.PROTECTED)
 class Payment {
+    @Id
+    @GeneratedValue(strategy = GenerationType.IDENTITY)
     private Long id;
-    private final Order order;
-    private final String cardNumber;
+    @OneToOne
+    private Order order;
+    private String cardNumber;
 
     public Payment(final Order order, final String cardNumber) {
         Assert.notNull(order, "주문은 필수입니다.");
@@ -17,10 +26,6 @@ public Payment(final Order order, final String cardNumber) {
         this.cardNumber = cardNumber;
     }
 
-    public void assignId(final Long id) {
-        this.id = id;
-    }
-
     public int getPrice() {
         return order.getTotalPrice();
     }

product-order-service/src/main/java/com/example/productorderservice/payment/PaymentAdapter.java

@@ -1,6 +1,7 @@
 package com.example.productorderservice.payment;
 
 import com.example.productorderservice.order.Order;
+import com.example.productorderservice.order.OrderRepository;
 import com.example.productorderservice.product.DiscountPolicy;
 import com.example.productorderservice.product.Product;
 import org.springframework.stereotype.Component;
@@ -9,15 +10,18 @@
 class PaymentAdapter implements PaymentPort {
     private final PaymentGateway paymentGateway;
     private final PaymentRepository paymentRepository;
+    private final OrderRepository orderRepository;
 
-    PaymentAdapter(final PaymentGateway paymentGateway, final PaymentRepository paymentRepository) {
+    PaymentAdapter(final PaymentGateway paymentGateway, final PaymentRepository paymentRepository, final OrderRepository orderRepository) {
         this.paymentGateway = paymentGateway;
         this.paymentRepository = paymentRepository;
+        this.orderRepository = orderRepository;
     }
 
     @Override
     public Order getOrder(final long orderId) {
-        return new Order(new Product("상품1", 1000, DiscountPolicy.NONE), 1);
+        return orderRepository.findById(orderId)
+                .orElseThrow(() -> new IllegalArgumentException("주문이 존재하지 않습니다."));
     }
 
     @Override

product-order-service/src/main/java/com/example/productorderservice/payment/PaymentRepository.java

@@ -1,17 +1,6 @@
 package com.example.productorderservice.payment;
 
-import org.springframework.stereotype.Repository;
+import org.springframework.data.jpa.repository.JpaRepository;
 
-import java.util.HashMap;
-import java.util.Map;
-
-@Repository
-class PaymentRepository {
-    private Map<Long, Payment> persistence = new HashMap<>();
-    private Long sequence = 0L;
-
-    public void save(final Payment payment) {
-        payment.assignId(++sequence);
-        persistence.put(payment.getId(), payment);
-    }
+interface PaymentRepository extends JpaRepository<Payment, Long> {
 }

product-order-service/src/main/java/com/example/productorderservice/payment/PaymentService.java

@@ -2,6 +2,7 @@
 
 import com.example.productorderservice.order.Order;
 import org.springframework.http.ResponseEntity;
+import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.bind.annotation.PostMapping;
 import org.springframework.web.bind.annotation.RequestBody;
 import org.springframework.web.bind.annotation.RequestMapping;
@@ -17,6 +18,7 @@ class PaymentService {
     }
 
     @PostMapping
+    @Transactional
     public ResponseEntity<Void> payment(@RequestBody final PaymentRequest request) {
         Order order = paymentPort.getOrder(request.orderId());
 

product-order-service/src/test/java/com/example/productorderservice/order/OrderApiTest.java

@@ -18,7 +18,4 @@ class OrderApiTest extends ApiTest {
 
         assertThat(response.statusCode()).isEqualTo(HttpStatus.CREATED.value());
     }
-
-
-
 }