92 lines
3.1 KiB
Java
92 lines
3.1 KiB
Java
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package com.ga.common.file;
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import com.ga.common.exception.BizException;
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import com.ga.common.exception.ErrorCode;
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import com.ga.common.util.SecurityUtil;
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import lombok.RequiredArgsConstructor;
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import lombok.extern.slf4j.Slf4j;
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import org.springframework.beans.factory.annotation.Value;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import org.springframework.web.multipart.MultipartFile;
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import java.io.IOException;
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import java.nio.file.Files;
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import java.nio.file.Path;
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import java.nio.file.Paths;
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import java.time.LocalDate;
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import java.util.List;
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import java.util.UUID;
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/**
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* 파일 업로드/다운로드. 로컬 파일시스템 저장 (S3 등으로 교체 가능한 구조).
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*/
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@Slf4j
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@Service
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@RequiredArgsConstructor
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public class FileService {
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private final FileMapper mapper;
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@Value("${ga.file.upload-dir:./uploads}")
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private String uploadDir;
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@Transactional
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public FileVO upload(MultipartFile file, String fileGroup) {
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if (file == null || file.isEmpty()) {
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throw new BizException(ErrorCode.FILE_UPLOAD_FAIL, "빈 파일입니다");
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}
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String original = file.getOriginalFilename();
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if (original == null) original = "unknown";
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String ext = extension(original);
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String stored = UUID.randomUUID() + (ext.isEmpty() ? "" : "." + ext);
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String relPath = LocalDate.now().toString().replace("-", "/");
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Path dir = Paths.get(uploadDir, relPath);
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try {
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Files.createDirectories(dir);
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Path dest = dir.resolve(stored);
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file.transferTo(dest.toFile());
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FileVO vo = new FileVO();
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vo.setFileGroup(fileGroup);
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vo.setOriginalName(original);
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vo.setStoredName(stored);
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vo.setFilePath(dest.toAbsolutePath().toString());
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vo.setFileSize(file.getSize());
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vo.setContentType(file.getContentType());
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vo.setExtension(ext);
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vo.setCreatedBy(SecurityUtil.getCurrentUserId());
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vo.setCreatedAt(java.time.LocalDateTime.now());
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mapper.insert(vo);
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return vo;
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} catch (IOException e) {
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log.error("File upload error", e);
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throw new BizException(ErrorCode.FILE_UPLOAD_FAIL, e.getMessage());
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}
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}
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public FileVO download(Long fileId) {
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FileVO vo = mapper.selectById(fileId);
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if (vo == null) throw new BizException(ErrorCode.FILE_NOT_FOUND);
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mapper.incrementDownloadCount(fileId);
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return vo;
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}
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public List<FileVO> listByGroup(String fileGroup) {
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return mapper.selectByGroup(fileGroup);
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}
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@Transactional
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public void delete(Long fileId) {
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FileVO vo = mapper.selectById(fileId);
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if (vo == null) throw new BizException(ErrorCode.FILE_NOT_FOUND);
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mapper.markDeleted(fileId);
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// 물리 삭제는 배치로 처리
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}
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private String extension(String name) {
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int idx = name.lastIndexOf('.');
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return idx >= 0 ? name.substring(idx + 1).toLowerCase() : "";
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}
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}
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