/// <summary>
/// 将UploadCheckPoint中的字段数据写入CheckPointFile文件
/// </summary>
/// 多个线程都需要调用该方法，需保证线程安全性
public void Record(string checkPointFile)
{
this.Md5 = ComputeHash.HashCode <UploadCheckPoint>(this);
XmlSerializer serializer = new XmlSerializer(this.GetType());
using (XmlTextWriter fs = new XmlTextWriter(checkPointFile, Encoding.UTF8))
{
fs.Formatting = Formatting.Indented;
serializer.Serialize(fs, this);
}
}
/// <summary>
/// 序列化记录文件的数据一致性校验
/// Md5值；文件的名字、大小、最后修改时间；CheckSum值
/// </summary>
/// <param name="uploadFile"></param>
/// <param name="uploadStream"></param>
/// <param name="enableCheckSum"></param>
/// <returns></returns>
public bool IsValid(string uploadFile, Stream uploadStream, bool enableCheckSum, ResumableUploadTypeEnum uploadType)
{
if (this.Md5 != ComputeHash.HashCode <UploadCheckPoint>(this))
{
return(false);
}
if (uploadType == ResumableUploadTypeEnum.UploadFile)
{
FileInfo upload = new FileInfo(uploadFile);
if (this.FileStatus.Size != upload.Length || this.FileStatus.LastModified != upload.LastWriteTime)
{
return(false);
}
}
else if (this.FileStatus.Size != uploadStream.Length - uploadStream.Position)
{
return(false);
}
if (enableCheckSum)
{
if (this.FileStatus.CheckSum != null)
{
try
{
if (uploadType == ResumableUploadTypeEnum.UploadFile)
{
using (FileStream fileStream = new FileStream(uploadFile, FileMode.Open))
{
//校验CheckSum值--UploadFile文件的一致性
return(this.FileStatus.CheckSum.Equals(CommonUtil.Base64Md5(fileStream)));
}
}
else
{
//校验CheckSum值--UploadStream流的一致性
long originPosition = uploadStream.Position;
bool flag = this.FileStatus.CheckSum.Equals(CommonUtil.Base64Md5(uploadStream));
uploadStream.Seek(originPosition, SeekOrigin.Begin);
return(flag);
}
}
catch (Exception ex)
{
ObsException e = new ObsException(ex.Message, ex.InnerException);
e.ErrorType = ErrorType.Sender;
throw e;
}
}
}
return(true);
}
/// <summary>
/// 将DownloadCheckPoint中的字段数据写入CheckPointFile文件
/// </summary>
/// 多个线程都需要调用该方法，需保证线程安全性
/// <param name="checkPointFile"></param>
public void Record(string checkPointFile)
{
this.Md5 = ComputeHash.HashCode <DownloadCheckPoint>(this);
try
{
XmlSerializer serializer = new XmlSerializer(this.GetType());
using (XmlTextWriter fs = new XmlTextWriter(checkPointFile, Encoding.UTF8))
{
serializer.Serialize(fs, this);
}
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// 序列化记录文件的数据一致性校验
/// Md5值；临时文件的名字、大小；对象的大小、最后修改时间、Etag值
/// </summary>
/// <param name="tmpFilePath"></param>
/// <param name="obsClient"></param>
/// <returns></returns>
public bool IsValid(string tmpFilePath, ObsClient obsClient)
{
if (this.Md5 != ComputeHash.HashCode <DownloadCheckPoint>(this))
{
return(false);
}
FileInfo fileInfo = new FileInfo(tmpFilePath);
if (!this.TmpFileStatus.TmpFilePath.Equals(tmpFilePath) || this.TmpFileStatus.Size != fileInfo.Length)
{
return(false);
}
GetObjectMetadataResponse response = obsClient.GetObjectMetadata(BucketName, ObjectKey, VersionId);
if (!this.ObjectStatus.Etag.Equals(response.ETag) || this.ObjectStatus.Size != response.ContentLength || this.ObjectStatus.LastModified != response.LastModified)
{
return(false);
}
return(true);
}