create :: 도서 신청 조회

src/main/java/com/mindway/server/v2/domain/order/service/GetBookOrdersService.java

@@ -0,0 +1,9 @@
+package com.mindway.server.v2.domain.order.service;
+
+import com.mindway.server.v2.domain.order.presentation.dto.response.OrdersResponse;
+
+import java.util.List;
+
+public interface GetBookOrdersService {
+    List<OrdersResponse> execute();
+}

src/main/java/com/mindway/server/v2/domain/order/service/impl/GetBookOrdersServiceImpl.java

@@ -0,0 +1,42 @@
+package com.mindway.server.v2.domain.order.service.impl;
+
+import com.mindway.server.v2.domain.order.entity.Orders;
+import com.mindway.server.v2.domain.order.exception.NotAccessStudentException;
+import com.mindway.server.v2.domain.order.presentation.dto.response.OrdersResponse;
+import com.mindway.server.v2.domain.order.repository.OrdersRepository;
+import com.mindway.server.v2.domain.order.service.GetBookOrdersService;
+import com.mindway.server.v2.domain.order.util.OrdersConverter;
+import com.mindway.server.v2.domain.user.entity.Authority;
+import com.mindway.server.v2.domain.user.entity.User;
+import com.mindway.server.v2.domain.user.util.UserUtil;
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+import org.springframework.transaction.annotation.Transactional;
+
+import java.util.List;
+import java.util.stream.Collectors;
+
+@Service
+@RequiredArgsConstructor
+@Transactional(readOnly = true, rollbackFor = {Exception.class})
+public class GetBookOrdersServiceImpl implements GetBookOrdersService {
+    private final UserUtil userUtil;
+    private final OrdersRepository ordersRepository;
+    private final OrdersConverter ordersConverter;
+
+    @Override
+    public List<OrdersResponse> execute() {
+        User user = userUtil.getCurrentUser();
+
+        if (user.getAuthority() != Authority.ROLE_TEACHER
+                && user.getAuthority() != Authority.ROLE_HELPER) {
+            throw new NotAccessStudentException();
+        }
+
+        List<Orders> orders = ordersRepository.findAll();
+
+        return orders.stream()
+                .map(ordersConverter::toDto)
+                .collect(Collectors.toList());
+    }
+}