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package com.tanpu.community.service;
import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.tanpu.common.constant.BizStatus;
import com.tanpu.common.exception.BizException;
import com.tanpu.common.util.AliyunOSSHelper;
import com.tanpu.common.util.JsonUtil;
import com.tanpu.common.uuid.UuidGenHelper;
import com.tanpu.community.api.CommunityConstant;
import com.tanpu.community.api.enums.FileTypeEnum;
import com.tanpu.community.api.enums.OssRelType;
import com.tanpu.community.dao.entity.community.FileRecordEntity;
import com.tanpu.community.dao.mapper.community.FileRecordMapper;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang3.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.ByteArrayInputStream;
import java.util.HashMap;
import java.util.List;
@Slf4j
@Service
public class OSSFileService {
@Value("${aliyun.oss.endpoint}")
public String endpoint;
@Value("${aliyun.oss.accessId}")
public String accessId;
@Value("${aliyun.oss.accessSK}")
public String accessSK;
@Value("${aliyun.oss.bucketName}")
public String bucketName;
private AliyunOSSHelper ossHelper;
@Resource
private FileRecordMapper fileRecordMapper;
@Autowired
private UuidGenHelper uuidGenHelper;
@PostConstruct
public void init() {
ossHelper = AliyunOSSHelper.build(endpoint, accessId, accessSK);
}
@Transactional
public FileRecordEntity uploadFile(byte[] data, String fileName) {
String fileSuffix = fileName.substring(fileName.lastIndexOf('.') + 1);
return uploadFile(data, fileName, fileSuffix, null, OssRelType.None);
}
@Transactional
public FileRecordEntity uploadFile(byte[] data, String fileName, String relId, OssRelType relType) {
String fileSuffix = fileName.substring(fileName.lastIndexOf('.') + 1);
return uploadFile(data, fileName, fileSuffix, relId, relType);
}
@Transactional
public FileRecordEntity uploadFile(byte[] data, String fileName, String fileSuffix,
String relId, OssRelType relType) {
// todo uniqueLong
String[] arr = StringUtils.split(fileName, ".");
String suffix = arr[arr.length - 1];
if (FileTypeEnum.imageTypeSet.contains(suffix)) {
//上传
String id = uuidGenHelper.getUuidStr();
String key = CommunityConstant.OSS_PREFIX_FOLDER+id + "." + suffix;
ossHelper.writeFile(bucketName, key, data, fileSuffix);
//落库
FileRecordEntity record = new FileRecordEntity();
record.setFileId(uuidGenHelper.getUuidStr());
record.setDeleteTag(BizStatus.DeleteTag.tag_init);
record.setFileOssKey(key);
record.setFileName(fileName);
record.setFileId(id);
record.setPreviewUrl(ossHelper.getPreSignedUrl(bucketName, key));
record.setFileType(FileTypeEnum.IMAGE.getCode());
HashMap<String, Integer> attr = getStringIntegerHashMap(data);
record.setExtInfo(JsonUtil.toJson(attr));
fileRecordMapper.insert(record);
return record;
}else {
throw new BizException("文件格式暂不支持:"+suffix);
}
}
private HashMap<String, Integer> getStringIntegerHashMap(byte[] data) {
ByteArrayInputStream bins = new ByteArrayInputStream(data);
BufferedImage bi = null;
try {
bi = ImageIO.read(bins);
} catch (Exception e) {
e.printStackTrace();
}
HashMap<String, Integer> attr = new HashMap<>();
attr.put("width",bi.getWidth());
attr.put("height",bi.getHeight());
return attr;
}
public FileRecordEntity queryById(String fileId) {
return fileRecordMapper.selectOne(new LambdaQueryWrapper<FileRecordEntity>()
.eq(FileRecordEntity::getFileId,fileId));
}
public List<FileRecordEntity> queryByIds(List<String> fileIds) {
return fileRecordMapper.selectList(new LambdaQueryWrapper<FileRecordEntity>()
.in(FileRecordEntity::getFileId,fileIds));
}
}