private static void OnUploadProgress(
IUploadProgress uploadProgress,
ulong totalSize,
IGcsFileOperationCallback operation)
{
operation.Progress((double)uploadProgress.BytesSent / totalSize);
}
private void OnDownloadProgress(
IDownloadProgress downloadProgress,
ulong totalSize,
IGcsFileOperationCallback operation)
{
operation.Progress((double)downloadProgress.BytesDownloaded / totalSize);
}
/// <summary>
/// Starts a delete operation, sending the notifications to the given <paramref name="operation"/>.
/// </summary>
/// <param name="bucket">The bucket that owns the file.</param>
/// <param name="name">The name of the file.</param>
/// <param name="operation">The operation that will receive the status and progress notifications.</param>
/// <param name="token">The cancellation token to cancel the operation.</param>
public async void StartDeleteOperation(string bucket, string name, IGcsFileOperationCallback operation, CancellationToken token)
{
try
{
var response = await Service.Objects.Delete(bucket, name).ExecuteAsync(token);
operation.Completed();
}
catch (GoogleApiException ex)
{
operation.Error(new DataSourceException(ex.Message, ex));
}
catch (OperationCanceledException)
{
operation.Cancelled();
}
}
/// <summary>
/// Starts a file upload operation reporting the status and progress to the given <paramref name="operation"/>.
/// </summary>
/// <param name="sourcePath">The path to the file to open, should be a full path.</param>
/// <param name="bucket">The bucket that will own the file.</param>
/// <param name="name">The name to use.</param>
/// <param name="operation">The operation that will receive the status and progress notifications.</param>
/// <param name="token">The cancellation token to cancel the operation.</param>
public async void StartFileUploadOperation(
string sourcePath,
string bucket,
string name,
IGcsFileOperationCallback operation,
CancellationToken token)
{
try
{
using (var stream = new FileStream(sourcePath, FileMode.Open, FileAccess.Read))
{
var totalSize = (ulong)stream.Length;
var request = Service.Objects.Insert(
new Google.Apis.Storage.v1.Data.Object
{
Name = name,
Size = totalSize,
},
bucket,
stream,
null);
request.ProgressChanged += (p) => OnUploadProgress(p, totalSize, operation);
var response = await request.UploadAsync(token);
operation.Completed();
}
}
catch (IOException ex)
{
operation.Error(new DataSourceException(ex.Message, ex));
}
catch (GoogleApiException ex)
{
operation.Error(new DataSourceException(ex.Message, ex));
}
catch (OperationCanceledException)
{
operation.Cancelled();
}
}
/// <summary>
/// Starts a file download operation, reporting the status and progress to the given <paramref name="operation"/>.
/// </summary>
/// <param name="bucket">The bucket that owns the file.</param>
/// <param name="name">The file name.</param>
/// <param name="destPath">Where to save the file, this should be a full path.</param>
/// <param name="operation">The operation that will receive the status and progress notifications.</param>
/// <param name="token">The cancellation token to cancel the operation.</param>
public async void StartFileDownloadOperation(
string bucket,
string name,
string destPath,
IGcsFileOperationCallback operation,
CancellationToken token)
{
try
{
using (var stream = new FileStream(destPath, FileMode.OpenOrCreate, FileAccess.Write))
{
// Find out the total size of the file to download.
var request = Service.Objects.Get(bucket, name);
var obj = await request.ExecuteAsync(token);
ulong totalSize = obj.Size ?? 0;
// Hookup the progress indicator.
request.MediaDownloader.ProgressChanged += (p) => OnDownloadProgress(p, totalSize, operation);
var response = await request.DownloadAsync(stream, token);
operation.Completed();
}
}
catch (IOException ex)
{
operation.Error(new DataSourceException(ex.Message, ex));
}
catch (GoogleApiException ex)
{
operation.Error(new DataSourceException(ex.Message, ex));
}
catch (OperationCanceledException)
{
operation.Cancelled();
}
}
/// <summary>
/// Starts a move operation, sending the notifications to the given <paramref name="operation"/>.
/// </summary>
/// <param name="bucket">The bucket where the files reside.</param>
/// <param name="fromName">The file to move.</param>
/// <param name="toName">The new file name.</param>
/// <param name="operation">The operation to callback.</param>
/// <param name="cancellationToken">The cancellation token for the operation.</param>
public async void StartMoveOperation(
string bucket,
string fromName,
string toName,
IGcsFileOperationCallback operation,
CancellationToken cancellationToken)
{
try
{
await Service.Objects.Copy(null, bucket, fromName, bucket, toName).ExecuteAsync(cancellationToken);
await Service.Objects.Delete(bucket, fromName).ExecuteAsync(cancellationToken);
operation.Completed();
}
catch (GoogleApiException ex)
{
operation.Error(new DataSourceException(ex.Message, ex));
}
catch (OperationCanceledException)
{
operation.Cancelled();
}
}
