/// <summary>
/// private helper method return the specified object from the bucket
/// </summary>
/// <param name="args">GetObjectArgs Arguments Object encapsulates information like - bucket name, object name etc </param>
/// <param name="objectStat"> ObjectStat object encapsulates information like - object name, size, etag etc </param>
/// <param name="cancellationToken">Optional cancellation token to cancel the operation</param>
private Task getObjectFileAsync(GetObjectArgs args, ObjectStat objectStat, CancellationToken cancellationToken = default(CancellationToken))
{
long length = objectStat.Size;
string etag = objectStat.ETag;
long tempFileSize = 0;
string tempFileName = $"{args.FileName}.{etag}.part.minio";
if (!string.IsNullOrEmpty(args.VersionId))
{
tempFileName = $"{args.FileName}.{etag}.{args.VersionId}.part.minio";
}
if (File.Exists(args.FileName))
{
File.Delete(args.FileName);
}
utils.ValidateFile(tempFileName);
if (File.Exists(tempFileName))
{
File.Delete(tempFileName);
}
args = args.WithCallbackStream(stream =>
{
using (var fileStream = File.Create(tempFileName))
{
stream.CopyTo(fileStream);
}
FileInfo writtenInfo = new FileInfo(tempFileName);
long writtenSize = writtenInfo.Length;
if (writtenSize != (length - tempFileSize))
{
throw new IOException(tempFileName + ": unexpected data written. expected = " + (length - tempFileSize)
+ ", written = " + writtenSize);
}
utils.MoveWithReplace(tempFileName, args.FileName);
});
return(getObjectStreamAsync(args, objectStat, null, cancellationToken));
}
/// <summary>
/// private helper method return the specified object from the bucket
/// </summary>
/// <param name="args">GetObjectArgs Arguments Object encapsulates information like - bucket name, object name etc </param>
/// <param name="objectStat"> ObjectStat object encapsulates information like - object name, size, etag etc </param>
/// <param name="cancellationToken">Optional cancellation token to cancel the operation</param>
private Task getObjectFileAsync(GetObjectArgs args, ObjectStat objectStat, CancellationToken cancellationToken = default(CancellationToken))
{
long length = objectStat.Size;
string etag = objectStat.ETag;
string tempFileName = $"{args.FileName}.{etag}.part.minio";
if (!string.IsNullOrEmpty(args.VersionId))
{
tempFileName = $"{args.FileName}.{etag}.{args.VersionId}.part.minio";
}
if (File.Exists(args.FileName))
{
File.Delete(args.FileName);
}
utils.ValidateFile(tempFileName);
if (File.Exists(tempFileName))
{
File.Delete(tempFileName);
}
return(getObjectStreamAsync(args, objectStat, null, cancellationToken));
}
/// <summary>
/// private helper method to remove list of objects from bucket
/// </summary>
/// <param name="args">GetObjectArgs Arguments Object encapsulates information like - bucket name, object name etc </param>
/// <param name="objectStat"> ObjectStat object encapsulates information like - object name, size, etag etc, represents Object Information </param>
/// <param name="cb"> Action object of type Stream, callback to send Object contents, if assigned </param>
/// <param name="cancellationToken">Optional cancellation token to cancel the operation</param>
private async Task getObjectStreamAsync(GetObjectArgs args, ObjectStat objectStat, Action <Stream> cb, CancellationToken cancellationToken = default(CancellationToken))
{
RestRequest request = await this.CreateRequest(args).ConfigureAwait(false);
await this.ExecuteAsync(this.NoErrorHandlers, request, cancellationToken);
}
/// <summary>
/// private helper method to remove list of objects from bucket
/// </summary>
/// <param name="args">GetObjectArgs Arguments Object encapsulates information like - bucket name, object name etc </param>
/// <param name="objectStat"> ObjectStat object encapsulates information like - object name, size, etag etc, represents Object Information </param>
/// <param name="cb"> Action object of type Stream, callback to send Object contents, if assigned </param>
/// <param name="cancellationToken">Optional cancellation token to cancel the operation</param>
private async Task getObjectStreamAsync(GetObjectArgs args, ObjectStat objectStat, Action <Stream> cb, CancellationToken cancellationToken = default(CancellationToken))
{
HttpRequestMessageBuilder requestMessageBuilder = await CreateRequest(args).ConfigureAwait(false);
await ExecuteTaskAsync(this.NoErrorHandlers, requestMessageBuilder, cancellationToken).ConfigureAwait(false);
}