97 lines
4.3 KiB
Java
97 lines
4.3 KiB
Java
package com.rest.api.service.board;
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import com.rest.api.advice.exception.CForbiddenWordException;
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import com.rest.api.advice.exception.CNotOwnerException;
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import com.rest.api.advice.exception.CResourceNotExistException;
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import com.rest.api.advice.exception.CUserNotFoundException;
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import com.rest.api.annotation.ForbiddenWordCheck;
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import com.rest.api.common.CacheKey;
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import com.rest.api.entity.User;
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import com.rest.api.entity.board.Board;
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import com.rest.api.entity.board.Post;
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import com.rest.api.model.board.ParamsPost;
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import com.rest.api.repo.UserJpaRepo;
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import com.rest.api.repo.board.BoardJpaRepo;
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import com.rest.api.repo.board.PostJpaRepo;
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import com.rest.api.service.cache.CacheSevice;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.cache.annotation.CacheEvict;
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import org.springframework.cache.annotation.CachePut;
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import org.springframework.cache.annotation.Cacheable;
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import org.springframework.stereotype.Service;
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import javax.transaction.Transactional;
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import java.util.Arrays;
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import java.util.List;
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import java.util.Optional;
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@Slf4j
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@Service
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@Transactional
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@RequiredArgsConstructor
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public class BoardService {
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private final BoardJpaRepo boardJpaRepo;
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private final PostJpaRepo postJpaRepo;
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private final UserJpaRepo userJpaRepo;
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private final CacheSevice cacheSevice;
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public Board insertBoard(String boardName) {
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return boardJpaRepo.save(Board.builder().name(boardName).build());
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}
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// 게시판 이름으로 게시판을 조회. 없을경우 CResourceNotExistException 처리
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@Cacheable(value = CacheKey.BOARD, key = "#boardName", unless = "#result == null")
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public Board findBoard(String boardName) {
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return Optional.ofNullable(boardJpaRepo.findByName(boardName)).orElseThrow(CResourceNotExistException::new);
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}
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// 게시판 이름으로 게시글 리스트 조회.
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@Cacheable(value = CacheKey.POSTS, key = "#boardName", unless = "#result == null")
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public List<Post> findPosts(String boardName) {
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return postJpaRepo.findByBoardOrderByPostIdDesc(findBoard(boardName));
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}
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// 게시글ID로 게시글 단건 조회. 없을경우 CResourceNotExistException 처리
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@Cacheable(value = CacheKey.POST, key = "#postId", unless = "#result == null")
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public Post getPost(long postId) {
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return postJpaRepo.findById(postId).orElseThrow(CResourceNotExistException::new);
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}
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// 게시글을 등록합니다. 게시글의 회원UID가 조회되지 않으면 CUserNotFoundException 처리합니다.
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@CacheEvict(value = CacheKey.POSTS, key = "#boardName")
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@ForbiddenWordCheck
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public Post writePost(String uid, String boardName, ParamsPost paramsPost) {
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Board board = findBoard(boardName);
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Post post = new Post(userJpaRepo.findByUid(uid).orElseThrow(CUserNotFoundException::new), board, paramsPost.getAuthor(), paramsPost.getTitle(), paramsPost.getContent());
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return postJpaRepo.save(post);
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}
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// 게시글을 수정합니다. 게시글 등록자와 로그인 회원정보가 틀리면 CNotOwnerException 처리합니다.
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//@CachePut(value = CacheKey.POST, key = "#postId") 갱신된 정보만 캐시할경우에만 사용!
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@ForbiddenWordCheck
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public Post updatePost(long postId, String uid, ParamsPost paramsPost) {
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Post post = getPost(postId);
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User user = post.getUser();
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if (!uid.equals(user.getUid()))
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throw new CNotOwnerException();
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// 영속성 컨텍스트의 변경감지(dirty checking) 기능에 의해 조회한 Post내용을 변경만 해도 Update쿼리가 실행됩니다.
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post.setUpdate(paramsPost.getAuthor(), paramsPost.getTitle(), paramsPost.getContent());
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cacheSevice.deleteBoardCache(post.getPostId(), post.getBoard().getName());
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return post;
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}
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// 게시글을 삭제합니다. 게시글 등록자와 로그인 회원정보가 틀리면 CNotOwnerException 처리합니다.
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public boolean deletePost(long postId, String uid) {
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Post post = getPost(postId);
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User user = post.getUser();
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if (!uid.equals(user.getUid()))
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throw new CNotOwnerException();
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postJpaRepo.delete(post);
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cacheSevice.deleteBoardCache(post.getPostId(), post.getBoard().getName());
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return true;
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}
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}
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