5주차: 유효성검사 추가 및 회원관리

app/src/main/java/com/codesoom/assignment/application/common/exception/BaseException.java

@@ -0,0 +1,31 @@
+package com.codesoom.assignment.application.common.exception;
+
+import com.codesoom.assignment.dto.ErrorResponse;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public abstract class BaseException extends RuntimeException {
+    public final List<ErrorValidation> errors = new ArrayList<>();
+
+    public BaseException() {
+    }
+
+    public BaseException(String message) {
+        super(message);
+    }
+
+    public abstract int getStatusCode();
+
+    public void addValidation(String source, String type, String message) {
+        errors.add(new ErrorValidation(source, type, message));
+    }
+
+    public ErrorResponse toErrorResponse() {
+        return new ErrorResponse(
+                String.valueOf(getStatusCode()),
+                getMessage(),
+                errors
+        );
+    }
+}

app/src/main/java/com/codesoom/assignment/application/common/exception/ErrorValidation.java

@@ -0,0 +1,18 @@
+package com.codesoom.assignment.application.common.exception;
+
+import lombok.Builder;
+import lombok.Getter;
+
+@Getter
+public class ErrorValidation {
+    private final String source;
+    private final String type;
+    private final String message;
+
+    @Builder
+    public ErrorValidation(String source, String type, String message) {
+        this.source = source;
+        this.type = type;
+        this.message = message;
+    }
+}

app/src/main/java/com/codesoom/assignment/application/product/ProductCreator.java

@@ -0,0 +1,25 @@
+package com.codesoom.assignment.application.product;
+
+import com.codesoom.assignment.domain.product.Product;
+import com.codesoom.assignment.domain.product.ProductRepository;
+import com.codesoom.assignment.dto.product.ProductData;
+import org.springframework.stereotype.Service;
+
+@Service
+public class ProductCreator {
+    private final ProductRepository productRepository;
+
+    public ProductCreator(ProductRepository productRepository) {
+        this.productRepository = productRepository;
+    }
+
+    public Product createProduct(ProductData productData) {
+        Product product = Product.builder()
+                .name(productData.getName())
+                .maker(productData.getMaker())
+                .price(productData.getPrice())
+                .imageUrl(productData.getImageUrl())
+                .build();
+        return productRepository.save(product);
+    }
+}

app/src/main/java/com/codesoom/assignment/application/product/ProductDeleter.java

@@ -0,0 +1,25 @@
+package com.codesoom.assignment.application.product;
+
+import com.codesoom.assignment.domain.product.Product;
+import com.codesoom.assignment.domain.product.ProductRepository;
+import org.springframework.stereotype.Service;
+
+@Service
+public class ProductDeleter {
+
+    private final ProductRepository productRepository;
+    private final ProductReader productReader;
+
+    public ProductDeleter(ProductRepository productRepository, ProductReader productReader) {
+        this.productRepository = productRepository;
+        this.productReader = productReader;
+    }
+
+    public Product deleteProduct(Long id) {
+        Product product = productReader.getProduct(id);
+
+        productRepository.delete(product);
+
+        return product;
+    }
+}

app/src/main/java/com/codesoom/assignment/application/product/ProductReader.java

@@ -0,0 +1,31 @@
+package com.codesoom.assignment.application.product;
+
+import com.codesoom.assignment.infra.product.exception.ProductNotFoundException;
+import com.codesoom.assignment.domain.product.Product;
+import com.codesoom.assignment.domain.product.ProductRepository;
+import org.springframework.stereotype.Service;
+
+import java.util.List;
+
+@Service
+public class ProductReader {
+
+    private final ProductRepository productRepository;
+
+    public ProductReader(ProductRepository productRepository) {
+        this.productRepository = productRepository;
+    }
+
+    public List<Product> getProducts() {
+        return productRepository.findAll();
+    }
+
+    public Product getProduct(Long id) {
+        return findProduct(id);
+    }
+
+    private Product findProduct(Long id) {
+        return productRepository.findById(id)
+                .orElseThrow(() -> new ProductNotFoundException());
+    }
+}

app/src/main/java/com/codesoom/assignment/application/product/ProductUpdater.java

@@ -0,0 +1,35 @@
+package com.codesoom.assignment.application.product;
+
+import com.codesoom.assignment.domain.product.Product;
+import com.codesoom.assignment.domain.product.ProductRepository;
+import com.codesoom.assignment.dto.product.ProductData;
+import org.springframework.stereotype.Service;
+
+import javax.transaction.Transactional;
+
+@Service
+public class ProductUpdater {
+
+    private final ProductRepository productRepository;
+    private final ProductReader productReader;
+
+    public ProductUpdater(ProductRepository productRepository, ProductReader productReader) {
+        this.productRepository = productRepository;
+        this.productReader = productReader;
+    }
+
+    @Transactional
+    public Product updateProduct(Long id, ProductData productData) {
+        Product product = productReader.getProduct(id);
+
+        product.change(
+                productData.getName(),
+                productData.getMaker(),
+                productData.getPrice(),
+                productData.getImageUrl()
+        );
+
+        return productRepository.save(product);
+    }
+
+}

app/src/main/java/com/codesoom/assignment/application/user/UserCreator.java

@@ -0,0 +1,20 @@
+package com.codesoom.assignment.application.user;
+
+import com.codesoom.assignment.domain.user.User;
+import com.codesoom.assignment.domain.user.UserRepository;
+import com.codesoom.assignment.dto.user.UserData;
+import org.springframework.stereotype.Service;
+
+@Service
+public class UserCreator {
+
+    private final UserRepository userRepository;
+
+    public UserCreator(UserRepository userRepository) {
+        this.userRepository = userRepository;
+    }
+
+    public User createUser(UserData userRequest) {
+        return userRepository.save(userRequest.toUser());
+    }
+}

app/src/main/java/com/codesoom/assignment/application/user/UserDeleter.java

@@ -0,0 +1,22 @@
+package com.codesoom.assignment.application.user;
+
+import com.codesoom.assignment.domain.user.User;
+import com.codesoom.assignment.domain.user.UserRepository;
+import org.springframework.stereotype.Service;
+
+@Service
+public class UserDeleter {
+    private final UserRepository userRepository;
+
+    private final UserReader userReader;
+
+    public UserDeleter(UserRepository userRepository, UserReader userReader) {
+        this.userRepository = userRepository;
+        this.userReader = userReader;
+    }
+
+    public void delete(Long id) {
+        User user = userReader.getUser(id);
+        userRepository.deleteById(user.getId());
+    }
+}

app/src/main/java/com/codesoom/assignment/application/user/UserReader.java

@@ -0,0 +1,20 @@
+
+package com.codesoom.assignment.application.user;
+
+import com.codesoom.assignment.domain.user.User;
+import com.codesoom.assignment.domain.user.UserRepository;
+import org.springframework.stereotype.Service;
+
+@Service
+public class UserReader {
+    private final UserRepository userRepository;
+
+    public UserReader(UserRepository userRepository) {
+        this.userRepository = userRepository;
+    }
+
+    public User getUser(Long id) {
+        return userRepository.findById(id)
+                .orElseThrow(() -> new IllegalArgumentException("해당하는 유저가 없습니다."));
+    }
+}

app/src/main/java/com/codesoom/assignment/application/user/UserUpdater.java

@@ -0,0 +1,30 @@
+package com.codesoom.assignment.application.user;
+
+import com.codesoom.assignment.domain.user.User;
+import com.codesoom.assignment.domain.user.UserRepository;
+import com.codesoom.assignment.dto.user.UserData;
+import org.springframework.stereotype.Service;
+
+import javax.transaction.Transactional;
+
+@Service
+public class UserUpdater {
+
+    private UserRepository userRepository;
+
+    private UserReader userReader;
+
+    public UserUpdater(UserRepository userRepository, UserReader userReader) {
+        this.userRepository = userRepository;
+        this.userReader = userReader;
+    }
+
+    @Transactional
+    public User update(Long id, UserData userRequest) {
+        User user = userReader.getUser(id);
+        user.change(userRequest.getName(), userRequest.getEmail(), userRequest.getPassword());
+
+        return userRepository.save(user);
+
+    }
+}

app/src/main/java/com/codesoom/assignment/controllers/ExceptionAdvice.java

@@ -0,0 +1,46 @@
+package com.codesoom.assignment.controllers;
+
+import com.codesoom.assignment.application.common.exception.ErrorValidation;
+import com.codesoom.assignment.infra.product.exception.ProductNotFoundException;
+import com.codesoom.assignment.dto.ErrorResponse;
+import org.springframework.http.HttpStatus;
+import org.springframework.validation.FieldError;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ControllerAdvice;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.ResponseBody;
+import org.springframework.web.bind.annotation.ResponseStatus;
+
+import java.util.ArrayList;
+import java.util.List;
+
+@ControllerAdvice
+public class ExceptionAdvice {
+    @ResponseBody
+    @ResponseStatus(HttpStatus.NOT_FOUND)
+    @ExceptionHandler(ProductNotFoundException.class)
+    public ErrorResponse handleProductTaskNotFound() {
+        return new ErrorResponse("해당하는 상품이 존재하지 않습니다");
+    }
+    @ResponseStatus(HttpStatus.BAD_REQUEST)
+    @ExceptionHandler(MethodArgumentNotValidException.class)
+    @ResponseBody
+    public ErrorResponse InvalidRequestHandler(MethodArgumentNotValidException e) {
+
+        List<FieldError> fieldErrors = e.getBindingResult().getFieldErrors();
+        List<ErrorValidation> errors = new ArrayList<>();
+
+        for (FieldError fieldError : fieldErrors) {
+            errors.add(new ErrorValidation(fieldError.getField(),"BAD_REQUEST",fieldError.getDefaultMessage()));
+        }
+
+        ErrorResponse response = ErrorResponse.builder()
+                .code("400")
+                .message("잘못된 요청입니다.")
+                .errors(errors)
+                .build();
+
+        return response;
+    }
+
+}