private void DownloadObjectImpl(
string baseUri,
Stream destination,
DownloadObjectOptions options,
IProgress <IDownloadProgress> progress)
{
// URI will definitely not be null; that's constructed internally.
GaxPreconditions.CheckNotNull(destination, nameof(destination));
var downloader = new HashValidatingDownloader(Service);
options?.ModifyDownloader(downloader);
ApplyEncryptionKey(options?.EncryptionKey, downloader);
string uri = options == null ? baseUri : options.GetUri(baseUri);
if (progress != null)
{
downloader.ProgressChanged += progress.Report;
progress.Report(InitialDownloadProgress.Instance);
}
var result = downloader.Download(uri, destination);
if (result.Status == DownloadStatus.Failed)
{
throw result.Exception;
}
}
private async Task DownloadObjectAsyncImpl(
string baseUri,
Stream destination,
DownloadObjectOptions options,
CancellationToken cancellationToken,
IProgress <IDownloadProgress> progress)
{
GaxPreconditions.CheckNotNull(destination, nameof(destination));
var downloader = new HashValidatingDownloader(Service);
options?.ModifyDownloader(downloader);
ApplyEncryptionKey(options?.EncryptionKey, downloader);
string uri = options == null ? baseUri : options.GetUri(baseUri);
if (progress != null)
{
downloader.ProgressChanged += progress.Report;
// Avoid reporting progress synchronously in the original call.
await Task.Yield();
progress.Report(InitialDownloadProgress.Instance);
}
var result = await downloader.DownloadAsync(uri, destination, cancellationToken).ConfigureAwait(false);
if (result.Status == DownloadStatus.Failed)
{
throw result.Exception;
}
}
private Task DownloadObjectAsyncImpl(
string baseUri,
Stream destination,
DownloadObjectOptions options,
CancellationToken cancellationToken,
IProgress <IDownloadProgress> progress) =>
// Use Task.Run to prevent reporting progress synchronously in the original call.
// We used to await Task.Yield(), but that doesn't actually achieve what we want.
Task.Run(async() =>
{
GaxPreconditions.CheckNotNull(destination, nameof(destination));
var downloader = CreateDownloader(options);
string uri = options == null ? baseUri : options.GetUri(baseUri);
if (progress != null)
{
downloader.ProgressChanged += progress.Report;
progress.Report(InitialDownloadProgress.Instance);
}
var result = await downloader.DownloadAsync(uri, destination, cancellationToken).ConfigureAwait(false);
if (result.Status == DownloadStatus.Failed)
{
throw result.Exception;
}
});