public async Task <IValueProvider> BindAsync(IStorageBlob blob, ValueBindingContext context)
{
WatchableCloudBlobStream watchableStream = await WriteBlobArgumentBinding.BindStreamAsync(blob,
context, _blobWrittenWatcherGetter.Value);
return(new CloudBlobStreamValueBinder(blob, watchableStream));
}
public async Task <IValueProvider> BindAsync(IStorageBlob blob, ValueBindingContext context)
{
WatchableCloudBlobStream watchableStream = await WriteBlobArgumentBinding.BindStreamAsync(blob,
context, _blobWrittenWatcherGetter.Value);
const int DefaultBufferSize = 1024;
TextWriter writer = new StreamWriter(watchableStream, Encoding.UTF8, DefaultBufferSize, leaveOpen: true);
return(new TextWriterValueBinder(blob, watchableStream, writer));
}
private async Task <Stream> CreateStreamAsync(
BlobAttribute blobAttribute,
ValueBindingContext context)
{
var cancellationToken = context.CancellationToken;
var blob = await GetBlobAsync(blobAttribute, cancellationToken).ConfigureAwait(false);
switch (blobAttribute.Access)
{
case FileAccess.Read:
var readStream = await ReadBlobArgumentBinding.TryBindStreamAsync(blob.BlobClient, context).ConfigureAwait(false);
return(readStream);
case FileAccess.Write:
var writeStream = await WriteBlobArgumentBinding.BindStreamAsync(blob,
context, _blobWrittenWatcherGetter.Value).ConfigureAwait(false);
return(writeStream);
default:
throw new InvalidOperationException("Cannot bind blob to Stream using FileAccess ReadWrite.");
}
}