package com.dl.system.service.impl;
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import cn.hutool.core.convert.Convert;
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import cn.hutool.core.io.IoUtil;
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import cn.hutool.core.util.ObjectUtil;
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import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
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import com.baomidou.mybatisplus.core.toolkit.Wrappers;
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import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
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import com.dl.common.constant.CacheNames;
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import com.dl.common.core.domain.PageQuery;
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import com.dl.common.core.page.TableDataInfo;
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import com.dl.common.core.service.OssService;
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import com.dl.common.exception.ServiceException;
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import com.dl.common.utils.BeanCopyUtils;
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import com.dl.common.utils.StringUtils;
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import com.dl.common.utils.file.FileUtils;
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import com.dl.common.utils.spring.SpringUtils;
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import com.dl.oss.core.OssClient;
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import com.dl.oss.entity.UploadResult;
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import com.dl.oss.enumd.AccessPolicyType;
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import com.dl.oss.factory.OssFactory;
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import com.dl.system.domain.SysOss;
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import com.dl.system.domain.bo.SysOssBo;
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import com.dl.system.domain.vo.SysOssVo;
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import com.dl.system.mapper.SysOssMapper;
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import com.dl.system.service.ISysOssService;
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import lombok.RequiredArgsConstructor;
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import org.springframework.cache.annotation.Cacheable;
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import org.springframework.http.MediaType;
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import org.springframework.stereotype.Service;
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import org.springframework.web.multipart.MultipartFile;
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import javax.servlet.http.HttpServletResponse;
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import java.io.IOException;
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import java.io.InputStream;
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import java.util.*;
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import java.util.stream.Collectors;
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/**
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* 文件上传 服务层实现
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*
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* @author Lion Li
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*/
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@RequiredArgsConstructor
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@Service
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public class SysOssServiceImpl implements ISysOssService, OssService {
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private final SysOssMapper baseMapper;
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@Override
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public TableDataInfo<SysOssVo> queryPageList(SysOssBo bo, PageQuery pageQuery) {
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LambdaQueryWrapper<SysOss> lqw = buildQueryWrapper(bo);
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Page<SysOssVo> result = baseMapper.selectVoPage(pageQuery.build(), lqw);
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List<SysOssVo> filterResult = result.getRecords().stream().map(this::matchingUrl).collect(Collectors.toList());
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result.setRecords(filterResult);
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return TableDataInfo.build(result);
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}
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@Override
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public List<SysOssVo> listByIds(Collection<Long> ossIds) {
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List<SysOssVo> list = new ArrayList<>();
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for (Long id : ossIds) {
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SysOssVo vo = SpringUtils.getAopProxy(this).getById(id);
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if (ObjectUtil.isNotNull(vo)) {
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list.add(this.matchingUrl(vo));
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}
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}
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return list;
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}
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@Override
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public String selectUrlByIds(String ossIds) {
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List<String> list = new ArrayList<>();
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for (Long id : StringUtils.splitTo(ossIds, Convert::toLong)) {
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SysOssVo vo = SpringUtils.getAopProxy(this).getById(id);
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if (ObjectUtil.isNotNull(vo)) {
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list.add(this.matchingUrl(vo).getUrl());
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}
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}
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return String.join(StringUtils.SEPARATOR, list);
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}
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private LambdaQueryWrapper<SysOss> buildQueryWrapper(SysOssBo bo) {
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Map<String, Object> params = bo.getParams();
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LambdaQueryWrapper<SysOss> lqw = Wrappers.lambdaQuery();
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lqw.like(StringUtils.isNotBlank(bo.getFileName()), SysOss::getFileName, bo.getFileName());
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lqw.like(StringUtils.isNotBlank(bo.getOriginalName()), SysOss::getOriginalName, bo.getOriginalName());
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lqw.eq(StringUtils.isNotBlank(bo.getFileSuffix()), SysOss::getFileSuffix, bo.getFileSuffix());
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lqw.eq(StringUtils.isNotBlank(bo.getUrl()), SysOss::getUrl, bo.getUrl());
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lqw.between(params.get("beginCreateTime") != null && params.get("endCreateTime") != null,
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SysOss::getCreateTime, params.get("beginCreateTime"), params.get("endCreateTime"));
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lqw.eq(StringUtils.isNotBlank(bo.getCreateBy()), SysOss::getCreateBy, bo.getCreateBy());
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lqw.eq(StringUtils.isNotBlank(bo.getService()), SysOss::getService, bo.getService());
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return lqw;
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}
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@Cacheable(cacheNames = CacheNames.SYS_OSS, key = "#ossId")
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@Override
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public SysOssVo getById(Long ossId) {
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return baseMapper.selectVoById(ossId);
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}
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@Override
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public void download(Long ossId, HttpServletResponse response) throws IOException {
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SysOssVo sysOss = SpringUtils.getAopProxy(this).getById(ossId);
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if (ObjectUtil.isNull(sysOss)) {
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throw new ServiceException("文件数据不存在!");
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}
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FileUtils.setAttachmentResponseHeader(response, sysOss.getOriginalName());
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response.setContentType(MediaType.APPLICATION_OCTET_STREAM_VALUE + "; charset=UTF-8");
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OssClient storage = OssFactory.instance();
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try(InputStream inputStream = storage.getObjectContent(sysOss.getUrl())) {
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int available = inputStream.available();
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IoUtil.copy(inputStream, response.getOutputStream(), available);
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response.setContentLength(available);
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} catch (Exception e) {
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throw new ServiceException(e.getMessage());
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}
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}
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@Override
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public SysOssVo upload(MultipartFile file) {
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String originalfileName = file.getOriginalFilename();
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String suffix = StringUtils.substring(originalfileName, originalfileName.lastIndexOf("."), originalfileName.length());
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OssClient storage = OssFactory.instance();
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UploadResult uploadResult;
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try {
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uploadResult = storage.uploadSuffix(file.getBytes(), suffix, file.getContentType());
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} catch (IOException e) {
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throw new ServiceException(e.getMessage());
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}
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// 保存文件信息
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SysOss oss = new SysOss();
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oss.setUrl(uploadResult.getUrl());
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oss.setFileSuffix(suffix);
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oss.setFileName(uploadResult.getFilename());
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oss.setOriginalName(originalfileName);
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oss.setService(storage.getConfigKey());
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baseMapper.insert(oss);
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SysOssVo sysOssVo = new SysOssVo();
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BeanCopyUtils.copy(oss, sysOssVo);
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return this.matchingUrl(sysOssVo);
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}
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@Override
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public Boolean deleteWithValidByIds(Collection<Long> ids, Boolean isValid) {
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if (isValid) {
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// 做一些业务上的校验,判断是否需要校验
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}
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List<SysOss> list = baseMapper.selectBatchIds(ids);
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for (SysOss sysOss : list) {
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OssClient storage = OssFactory.instance(sysOss.getService());
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storage.delete(sysOss.getUrl());
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}
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return baseMapper.deleteBatchIds(ids) > 0;
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}
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/**
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* 匹配Url
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*
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* @param oss OSS对象
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* @return oss 匹配Url的OSS对象
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*/
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private SysOssVo matchingUrl(SysOssVo oss) {
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OssClient storage = OssFactory.instance(oss.getService());
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// 仅修改桶类型为 private 的URL，临时URL时长为120s
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if (AccessPolicyType.PRIVATE == storage.getAccessPolicy()) {
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oss.setUrl(storage.getPrivateUrl(oss.getFileName(), 120));
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}
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return oss;
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}
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}
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