feat: Article 생성, 에러 코드 추가

src/main/java/com/teamB/pcs/common/dto/ResponseDto.java

@@ -0,0 +1,24 @@
+package com.teamB.pcs.common.dto;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.http.ResponseEntity;
+
+import java.io.Serializable;
+
+public record ResponseDto<T>(T data) implements Serializable {
+    public static <T> ResponseEntity<T> ok(T data) {
+        return ResponseEntity.ok(data);
+    }
+
+    public static <T> ResponseEntity<T> created(T data) {
+        return ResponseEntity
+                .status(HttpStatus.CREATED)
+                .body(data);
+    }
+
+    public static ResponseEntity<Void> noContent() {
+        return ResponseEntity
+                .status(HttpStatus.NO_CONTENT)
+                .build();
+    }
+}

src/main/java/com/teamB/pcs/controller/ArticleController.java

@@ -1,10 +1,13 @@
 package com.teamB.pcs.controller;
 
+import com.teamB.pcs.common.dto.ResponseDto;
 import com.teamB.pcs.dto.request.ArticleRequest;
+import com.teamB.pcs.dto.request.ArticleSaveRequestDto;
 import com.teamB.pcs.dto.response.ArticleListResponse;
 import com.teamB.pcs.dto.response.ArticleResponse;
 import com.teamB.pcs.service.ArticleService;
 import lombok.RequiredArgsConstructor;
+import org.springframework.http.ResponseEntity;
 import org.springframework.stereotype.Controller;
 import org.springframework.web.bind.annotation.*;
 
@@ -21,9 +24,10 @@ public ArticleListResponse getAll(){
         return articleService.getAll();
     }
 
-    @PostMapping("")
-    public void create(@RequestBody ArticleRequest articleRequest){
-        articleService.create(articleRequest);
+    @PostMapping()
+    public ResponseEntity<Void> create(@RequestBody ArticleSaveRequestDto articleSaveRequestDto){
+        articleService.create(articleSaveRequestDto);
+        return ResponseDto.noContent();
     }
 
     @GetMapping("/{articleId}")

src/main/java/com/teamB/pcs/domain/Article.java

@@ -27,24 +27,26 @@ public class Article {
 
     private String body;
 
-    private List<String> tagList;//따로 태그 엔티티를 파야하나?
+    private List<Tag> tags;
 
     @CreationTimestamp
     private LocalDateTime createdAt;
 
     @UpdateTimestamp
     private LocalDateTime updatedAt;
 
-    @Builder
-    public Article(String title, String description, String body) {//태그도 추가되게해야됨
+
+    public void update(String title, String description, String body) {
         this.title = title;
         this.description = description;
         this.body = body;
     }
 
-    public void update(String title, String description, String body) {
+    @Builder
+    public Article(String title, String description, String body, List<Tag> tags) {
         this.title = title;
         this.description = description;
         this.body = body;
+        this.tags = tags;
     }
 }

src/main/java/com/teamB/pcs/domain/Tag.java

@@ -0,0 +1,31 @@
+package com.teamB.pcs.domain;
+
+import com.fasterxml.jackson.annotation.JsonCreator;
+import com.teamB.pcs.error.ErrorCode;
+import com.teamB.pcs.error.exception.BusinessException;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+
+import java.util.ArrayList;
+import java.util.List;
+import java.util.stream.Stream;
+
+@RequiredArgsConstructor
+@Getter
+public enum Tag {
+    STUDY, HEALTH, DRINK, OTHER;
+
+    @JsonCreator
+    public static List<Tag> create(List<String> requestValue) {
+        List<Tag> tags = new ArrayList<>();
+        for (String r : requestValue) {
+            Tag tag = Stream.of(values())
+                    .filter(v -> v.toString().equalsIgnoreCase(r))
+                    .findFirst()
+                    .orElseThrow(() -> new BusinessException(ErrorCode.INVALID_TAG));
+            tags.add(tag);
+        }
+        return tags;
+    }
+
+}

src/main/java/com/teamB/pcs/dto/request/ArticleSaveRequestDto.java

@@ -0,0 +1,18 @@
+package com.teamB.pcs.dto.request;
+
+import com.teamB.pcs.domain.Article;
+import com.teamB.pcs.domain.Tag;
+
+import java.util.List;
+
+public record ArticleSaveRequestDto(String title, String description, String body, List<String> tags) {
+
+    public Article toEntity(String title, String description, String body, List<Tag> tags) {
+        return Article.builder()
+                .title(title)
+                .description(description)
+                .body(body)
+                .tags(tags)
+                .build();
+    }
+}

src/main/java/com/teamB/pcs/dto/response/ArticleResponse.java

@@ -1,6 +1,7 @@
 package com.teamB.pcs.dto.response;
 
 import com.teamB.pcs.domain.Article;
+import com.teamB.pcs.domain.Tag;
 import lombok.Getter;
 import lombok.NoArgsConstructor;
 
@@ -18,7 +19,7 @@ public class ArticleResponse {
 
     private String body;
 
-    private List<String> tagList;
+    private List<Tag> tagList;
 
     private LocalDateTime createdAt;//반환할때 LocalDateTime으로 해도되나?
 
@@ -29,7 +30,7 @@ public ArticleResponse(Article article){
         title=article.getTitle();
         description=article.getDescription();
         body=article.getBody();
-        tagList=article.getTagList();
+        tagList=article.getTags();
         createdAt=article.getCreatedAt();
         updatedAt=article.getUpdatedAt();
     }

src/main/java/com/teamB/pcs/error/ErrorCode.java

@@ -0,0 +1,24 @@
+package com.teamB.pcs.error;
+
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
+import org.springframework.http.HttpStatus;
+
+import static org.springframework.http.HttpStatus.*;
+import static org.springframework.http.HttpStatus.NOT_FOUND;
+
+@Getter
+@RequiredArgsConstructor
+public enum ErrorCode {
+
+    INVALID_TAG(BAD_REQUEST, "태그를 찾을 수 없습니다");
+
+
+    private final int code;
+    private final String message;
+
+    ErrorCode(HttpStatus code, String message) {
+        this.code = code.value();
+        this.message = message;
+    }
+}

src/main/java/com/teamB/pcs/error/dto/ErrorResponse.java

@@ -0,0 +1,8 @@
+package com.teamB.pcs.error.dto;
+
+public record ErrorResponse(int code, String message) {
+    public static ErrorResponse of(int code, String message){
+        return new ErrorResponse(code, message);
+    }
+
+}

src/main/java/com/teamB/pcs/error/exception/BusinessException.java

@@ -0,0 +1,15 @@
+package com.teamB.pcs.error.exception;
+
+import com.teamB.pcs.error.ErrorCode;
+import lombok.Getter;
+
+@Getter
+public class BusinessException extends RuntimeException{
+
+    private final int code;
+
+    public BusinessException(ErrorCode errorCode) {
+        super(errorCode.getMessage());
+        this.code = errorCode.getCode();
+    }
+}

src/main/java/com/teamB/pcs/error/exception/GlobalExceptionHandler.java

@@ -0,0 +1,41 @@
+package com.teamB.pcs.error.exception;
+
+import lombok.extern.slf4j.Slf4j;
+import org.springframework.http.ResponseEntity;
+import org.springframework.validation.BindingResult;
+import org.springframework.web.bind.MethodArgumentNotValidException;
+import org.springframework.web.bind.annotation.ExceptionHandler;
+import org.springframework.web.bind.annotation.RestControllerAdvice;
+
+import java.util.List;
+import java.util.stream.Collectors;
+import com.teamB.pcs.error.dto.ErrorResponse;
+import static org.springframework.http.HttpStatus.BAD_REQUEST;
+
+@Slf4j
+@RestControllerAdvice
+public class GlobalExceptionHandler {
+
+    @ExceptionHandler
+    public ResponseEntity<ErrorResponse> handle(final Exception e) {
+        log.error("Internal Error occurred", e);
+        return ResponseEntity.internalServerError().body(ErrorResponse.of(500, e.getMessage()));
+    }
+
+    @ExceptionHandler
+    public ResponseEntity<ErrorResponse> handle(final BusinessException e) {
+        log.info("businessException: {}", e);
+        return ResponseEntity.status(e.getCode()).body(ErrorResponse.of(e.getCode(), e.getMessage()));
+    }
+
+    @ExceptionHandler
+    public ResponseEntity<ErrorResponse> handle(MethodArgumentNotValidException e) {
+        BindingResult bindingResult = e.getBindingResult();
+        String firstErrorMessage = bindingResult.getFieldErrors().get(0).getDefaultMessage();
+
+        List<String> errorList = bindingResult.getFieldErrors().stream().map(err -> err.getDefaultMessage()).collect(Collectors.toList());
+        log.warn("MethodArgumentNotValidExceptionException = {}", errorList);
+
+        return ResponseEntity.status(BAD_REQUEST).body(ErrorResponse.of(BAD_REQUEST.value(), firstErrorMessage));
+    }
+}

src/main/java/com/teamB/pcs/service/ArticleService.java

@@ -1,7 +1,9 @@
 package com.teamB.pcs.service;
 
 import com.teamB.pcs.domain.Article;
+import com.teamB.pcs.domain.Tag;
 import com.teamB.pcs.dto.request.ArticleRequest;
+import com.teamB.pcs.dto.request.ArticleSaveRequestDto;
 import com.teamB.pcs.dto.response.ArticleListResponse;
 import com.teamB.pcs.dto.response.ArticleResponse;
 import com.teamB.pcs.repository.ArticleRepository;
@@ -17,6 +19,12 @@
 public class ArticleService {
     private final ArticleRepository articleRepository;
 
+    public void create(ArticleSaveRequestDto request) {
+        List<Tag> tags = Tag.create(request.tags());
+        Article article = request.toEntity(request.title(), request.description(), request.body(), tags);
+        articleRepository.save(article);
+    }
+
     public ArticleListResponse getAll() {
         List<ArticleResponse> articleResponses = articleRepository.findAll().stream()
                 .map(ArticleResponse::new)

src/main/resources/application.yml

@@ -1,5 +1,7 @@
 spring:
   profiles:
+    active:
+      local
     group:
       local-env:
         - local