#33 tdd(order-service): payment - apply jpa

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

@@ -1,13 +1,25 @@
 package com.example.productorderservice.payment;
 
 import com.example.productorderservice.order.Order;
+import lombok.AccessLevel;
+import lombok.Getter;
+import lombok.NoArgsConstructor;
 import org.springframework.util.Assert;
 
+import javax.persistence.*;
+
+@Entity
+@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(Order order, String cardNumber) {
         Assert.notNull(order, "주문은 필수입니다.");
@@ -16,19 +28,8 @@ class Payment {
         this.cardNumber = cardNumber;
     }
 
-    public void assign(Long id) {
-        this.id = id;
-    }
-
-    public Long getId() {
-        return id;
-    }
-
     public int getPrice() {
         return order.getTotalPrice();
     }
 
-    public String getCardNumber() {
-        return cardNumber;
-    }
 }

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 @@ import org.springframework.stereotype.Component;
 class PaymentAdapter implements PaymentPort {
     private final PaymentGateway paymentGateway;
     private final PaymentRepository paymentRepository;
+    private final OrderRepository orderRepository;
 
-    PaymentAdapter(PaymentGateway paymentGateway, PaymentRepository paymentRepository) {
+    PaymentAdapter(PaymentGateway paymentGateway, PaymentRepository paymentRepository, OrderRepository orderRepository) {
         this.paymentGateway = paymentGateway;
         this.paymentRepository = paymentRepository;
+        this.orderRepository = orderRepository;
     }
 
     @Override
     public Order getOrder(Long orderId) {
-        return new Order(new Product("상품1", 1000, DiscountPolicy.NONE), 2);
+        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 +1,8 @@
 package com.example.productorderservice.payment;
 
+import org.springframework.data.jpa.repository.JpaRepository;
 import org.springframework.stereotype.Repository;
 
-import java.util.HashMap;
-import java.util.Map;
-
 @Repository
-class PaymentRepository {
-    private final Map<Long, Payment> persistence = new HashMap<>();
-    private Long sequence = 0L;
-
-    public void save(Payment payment) {
-        payment.assign(++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 @@ package com.example.productorderservice.payment;
 
 import com.example.productorderservice.order.Order;
 import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
 
 @Service
 public class PaymentService {
@@ -11,6 +12,7 @@ public class PaymentService {
         this.paymentPort = paymentPort;
     }
 
+    @Transactional
     public void payment(PaymentRequest request) {
         final Order order = paymentPort.getOrder(request.orderId());
 

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

@@ -1,27 +0,0 @@
-package com.example.productorderservice.payment;
-
-import org.junit.jupiter.api.BeforeEach;
-import org.junit.jupiter.api.Test;
-
-class PaymentServicePojoTest {
-
-    private PaymentService paymentService;
-    private PaymentPort paymentPort;
-
-    @BeforeEach
-    void setUp() {
-        final PaymentGateway paymentGateway = new ConsolePaymentGateway();
-        final PaymentRepository paymentRepository= new PaymentRepository();
-        paymentPort = new PaymentAdapter(paymentGateway, paymentRepository);
-        paymentService = new PaymentService(paymentPort);
-    }
-
-    @Test
-    void 상품주문() {
-
-        final PaymentRequest request = PaymentSteps.주문결제요청_생성();
-
-        paymentService.payment(request);
-    }
-
-}