package com.kidgrow.filecenter.service.impl;
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import cn.hutool.core.util.IdUtil;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
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import com.kidgrow.common.constant.CommonConstant;
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import com.kidgrow.common.model.PageResult;
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import com.kidgrow.common.utils.DateUtil;
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import com.kidgrow.common.utils.MultipartFileUtils;
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import com.kidgrow.common.utils.RandomValueUtils;
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import com.kidgrow.common.utils.StringUtils;
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import com.kidgrow.filecenter.mapper.FileMapper;
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import com.kidgrow.filecenter.model.FileInfo;
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import com.kidgrow.filecenter.service.IFileService;
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import com.kidgrow.filecenter.util.FileUtil;
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import lombok.extern.slf4j.Slf4j;
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import net.coobird.thumbnailator.Thumbnails;
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import org.apache.commons.collections4.MapUtils;
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import org.springframework.web.multipart.MultipartFile;
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import java.io.File;
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import java.io.FileInputStream;
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import java.io.InputStream;
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import java.util.Date;
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import java.util.List;
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import java.util.Map;
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/**
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* 石家庄喜高科技有限责任公司 版权所有 © Copyright 2020<br>
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*
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* @Description: <br>
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* @Project: <br>
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* @CreateDate: Created in 2020/2/18 11:24 <br>
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* @Author: <a href="4345453@kidgrow.com">liuke</a>
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*/
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@Slf4j
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public abstract class AbstractIFileService extends ServiceImpl<FileMapper, FileInfo> implements IFileService {
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private static final String FILE_SPLIT = ".";
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@Override
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public FileInfo upload(MultipartFile file) throws Exception {
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FileInfo fileInfo = FileUtil.getFileInfo(file);
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FileInfo oldFileInfo = baseMapper.selectById(fileInfo.getId());
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if (oldFileInfo != null) {
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return oldFileInfo;
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}
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if (!fileInfo.getName().contains(FILE_SPLIT)) {
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throw new IllegalArgumentException("缺少后缀名");
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}
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uploadFile(file, fileInfo);
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// 设置文件来源
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fileInfo.setSource(fileType());
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// 将文件信息保存到数据库
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baseMapper.insert(fileInfo);
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return fileInfo;
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}
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@Override
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public FileInfo upload(MultipartFile file,String imgType) throws Exception {
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FileInfo fileInfo = FileUtil.getFileInfo(file);
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FileInfo oldFileInfo = baseMapper.selectById(fileInfo.getId());
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if (oldFileInfo != null) {
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return oldFileInfo;
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}
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if (!fileInfo.getName().contains(FILE_SPLIT)) {
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throw new IllegalArgumentException("缺少后缀名");
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}
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fileInfo.setImgType(imgType); // X光片或者Logo
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uploadFile(file, fileInfo);
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// 设置文件来源
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fileInfo.setSource(fileType());
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// 将文件信息保存到数据库
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baseMapper.insert(fileInfo);
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return fileInfo;
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}
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/**
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* 文件来源
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*
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* @return
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*/
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protected abstract String fileType();
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/**
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* 上传文件
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*
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* @param file
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* @param fileInfo
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*/
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protected abstract void uploadFile(MultipartFile file, FileInfo fileInfo) throws Exception;
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protected abstract void fileUpLoadOss(FileInfo fileInfo,String newFilePath, InputStream fileStream);
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protected abstract String FilePath(String imgType,String folderByDate);
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/**
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* 删除文件
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* @param id 文件id
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*/
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@Override
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public void delete(String id) {
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FileInfo fileInfo = baseMapper.selectById(id);
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if (fileInfo != null) {
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baseMapper.deleteById(fileInfo.getId());
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this.deleteFile(fileInfo);
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}
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}
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/**
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* 删除文件资源
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*
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* @param fileInfo
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* @return
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*/
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protected abstract boolean deleteFile(FileInfo fileInfo);
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@Override
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public PageResult<FileInfo> findList(Map<String, Object> params) {
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Page<FileInfo> page = new Page<>(MapUtils.getInteger(params, "page"), MapUtils.getInteger(params, "limit"));
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List<FileInfo> list = baseMapper.findList(page, params);
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return PageResult.<FileInfo>builder().data(list).code(0).count(page.getTotal()).build();
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}
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/**
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* 上传图片-并缩略，其实是给文件服务器存储了两个文件 一个原文件 一个缩略图文件
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* @param file form内的文件数据
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* @param imgType 业务类型 例如logo
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* @return 返回的实体中 path字段保存的是缩略图地址
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* @throws Exception
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*/
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@Override
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public FileInfo uploadForThumbnails(MultipartFile file, String imgType) throws Exception {
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FileInfo fileInfo=this.upload(file,imgType);
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if (StringUtils.isNotBlank(fileInfo.getUrl())) {
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//生成缩略图上传
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File nowFile= MultipartFileUtils.multipartFileToFile(file);
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//暂存目录 发布后真实存在的磁盘目录
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String result = CommonConstant.TEMP_IMAGE_PATH;
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//文件扩展名
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String suffix=file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf("."));
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String newFileName= RandomValueUtils.uuid()+suffix;
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//生成缩略图
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Thumbnails.of(nowFile).size(CommonConstant.TH_IMG_WIDTH, CommonConstant.TH_IMG_HEIGHT).toFile(result+newFileName);
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File thuFile= new File(result+newFileName);
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if (thuFile.exists()) {
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//将生成的文件转换为流
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InputStream inputStream=new FileInputStream(new File(result+newFileName));
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String folderByDate = DateUtil.formatDate(new Date());
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String filefloder=this.FilePath(imgType,folderByDate);
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FileInfo newfileInfo=new FileInfo();
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newfileInfo.setName(newFileName);
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newfileInfo.setId(IdUtil.fastSimpleUUID());
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newfileInfo.setSize(thuFile.length());
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newfileInfo.setIsImg(true);
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newfileInfo.setContentType(file.getContentType());
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newfileInfo.setSource(fileInfo.getSource());
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newfileInfo.setImgType(imgType);
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newfileInfo.setCreateTime(new Date());
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//文件上传到oss
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this.fileUpLoadOss(newfileInfo,filefloder+newFileName,inputStream);
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inputStream.close();
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//删除暂存文件
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MultipartFileUtils.delteTempFile(thuFile);
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// 将文件信息保存到数据库
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baseMapper.insert(newfileInfo);
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fileInfo.setPath(newfileInfo.getUrl());
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}
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return fileInfo;
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}
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else
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{
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return fileInfo;
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}
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}
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}
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