package com.iailab.module.infra.framework.file.core.client.db;
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import cn.hutool.core.collection.CollUtil;
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import cn.hutool.extra.spring.SpringUtil;
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import com.iailab.module.infra.dal.dataobject.file.FileContentDO;
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import com.iailab.module.infra.dal.mysql.file.FileContentMapper;
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import com.iailab.module.infra.framework.file.core.client.AbstractFileClient;
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import java.util.Comparator;
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import java.util.List;
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/**
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* 基于 DB 存储的文件客户端的配置类
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*
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* @author iailab
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*/
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public class DBFileClient extends AbstractFileClient<DBFileClientConfig> {
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private FileContentMapper fileContentMapper;
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public DBFileClient(Long id, DBFileClientConfig config) {
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super(id, config);
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}
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@Override
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protected void doInit() {
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fileContentMapper = SpringUtil.getBean(FileContentMapper.class);
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}
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@Override
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public String upload(byte[] content, String path, String type) {
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FileContentDO contentDO = new FileContentDO().setConfigId(getId())
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.setPath(path).setContent(content);
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fileContentMapper.insert(contentDO);
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// 拼接返回路径
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return super.formatFileUrl(config.getDomain(), path);
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}
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@Override
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public void delete(String path) {
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fileContentMapper.deleteByConfigIdAndPath(getId(), path);
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}
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@Override
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public byte[] getContent(String path) {
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List<FileContentDO> list = fileContentMapper.selectListByConfigIdAndPath(getId(), path);
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if (CollUtil.isEmpty(list)) {
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return null;
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}
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// 排序后,拿 id 最大的,即最后上传的
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list.sort(Comparator.comparing(FileContentDO::getId));
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return CollUtil.getLast(list).getContent();
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}
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}
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