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package cn.fscode.commons.minio.client;

import com.google.common.collect.Multimap;
import io.minio.CreateMultipartUploadResponse;
import io.minio.ListPartsResponse;
import io.minio.MinioClient;
import io.minio.ObjectWriteResponse;
import io.minio.errors.*;
import io.minio.messages.Part;

import java.io.IOException;
import java.rmi.ServerException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

/**
 * 重写minio方法，实现断点续传
 * 最近开发功能需要大文件上传，正常会在业务代码中封装一层minio的上传，为了避免中转，实现了minio直传的方式。
 * 实现过程中也确实碰到了不少坑，只能查询文档，本着开箱即用，简单方便的原则，java版本的Minio sdk默认是不
 * 允许单独调用分片的相关方法，但是升级到8.0.3后可以通过继承MinioClient实现分片方法的使用，后来又碰到
 * 官方Minio版本的bug，提交issue，还好Minio github开发者处理非常迅捷，再次感谢，2021-02-04修复的，
 * 使用的开发者需要注意下。大致描述下流程：
 *
 * 1. 用户调用初始化接口，后端调用minio初始化，得到uploadId，生成每个分片的minio上传url
 * 2. 用户调用对应分片的上传地址，多次上传会覆盖
 * 3. 调用完成接口，后端查询所有上传的分片并合并
 */
public class CustomMinioClient extends MinioClient {

    public CustomMinioClient(MinioClient client) {
        super(client);
    }

    public String initMultiPartUpload(String bucket, String region, String object, Multimap headers, Multimap extraQueryParams) throws IOException, InvalidKeyException, NoSuchAlgorithmException, ServerException, XmlParserException, InvalidResponseException, ErrorResponseException, io.minio.errors.InternalException, io.minio.errors.InsufficientDataException, io.minio.errors.ServerException {
        CreateMultipartUploadResponse response = this.createMultipartUpload(bucket, region, object, headers, extraQueryParams);

        return response.result().uploadId();
    }

    public ObjectWriteResponse mergeMultipartUpload(String bucketName, String region, String objectName, String uploadId, Part[] parts, Multimap extraHeaders, Multimap extraQueryParams) throws IOException, InvalidKeyException, NoSuchAlgorithmException, ServerException, XmlParserException, InvalidResponseException, ErrorResponseException, io.minio.errors.InternalException, io.minio.errors.InsufficientDataException, io.minio.errors.ServerException {

        return this.completeMultipartUpload(bucketName, region, objectName, uploadId, parts, extraHeaders, extraQueryParams);
    }

    public ListPartsResponse listMultipart(String bucketName, String region, String objectName, Integer maxParts, Integer partNumberMarker, String uploadId, Multimap extraHeaders, Multimap extraQueryParams) throws NoSuchAlgorithmException, InsufficientDataException, IOException, InvalidKeyException, ServerException, XmlParserException, ErrorResponseException, InvalidResponseException, InternalException, InvalidKeyException, io.minio.errors.InternalException, io.minio.errors.InsufficientDataException, io.minio.errors.ServerException {
        return this.listParts(bucketName, region, objectName, maxParts, partNumberMarker, uploadId, extraHeaders, extraQueryParams);
    }
}