public static async Task <NotifyingBlobStream> BindStreamAsync(BlobWithContainer <BlobBaseClient> blob,
ValueBindingContext context, IBlobWrittenWatcher blobWrittenWatcher)
{
var blockBlob = blob.BlobClient as BlockBlobClient;
if (blockBlob == null)
{
throw new InvalidOperationException("Cannot bind to page or append blobs using 'out string', 'TextWriter', or writable 'Stream' parameters.");
}
var functionID = context.FunctionInstanceId;
BlobProperties properties = await blockBlob.FetchPropertiesOrNullIfNotExistAsync().ConfigureAwait(false);
Dictionary <string, string> metadata = new Dictionary <string, string>();
if (properties != null && properties.Metadata != null)
{
metadata = new Dictionary <string, string>(properties.Metadata);
}
BlobCausalityManager.SetWriter(metadata, functionID);
BlockBlobOpenWriteOptions options = new BlockBlobOpenWriteOptions()
{
Metadata = metadata,
};
Stream rawStream = await blockBlob.OpenWriteAsync(true, options).ConfigureAwait(false);
IBlobCommitedAction committedAction = new BlobCommittedAction(blob, blobWrittenWatcher);
return(await Task.FromResult(new NotifyingBlobStream(rawStream, committedAction)).ConfigureAwait(false));
}
public void SetWriter_IfNullObject_Throws()
{
// Arrange
Guid g = Guid.NewGuid();
// Act & Assert
ExceptionAssert.ThrowsArgumentNull(() => BlobCausalityManager.SetWriter(null, g), "metadata");
}
public void SetWriter_IfValidGuid_AddsWriter()
{
// Arrange
IDictionary <string, string> metadata = new Dictionary <string, string>();
Guid g = Guid.NewGuid();
// Act
BlobCausalityManager.SetWriter(metadata, g);
// Assert
AssertWriterEqual(g, metadata);
}
public static async Task <WatchableCloudBlobStream> BindStreamAsync(IStorageBlob blob,
ValueBindingContext context, IBlobWrittenWatcher blobWrittenWatcher)
{
IStorageBlockBlob blockBlob = blob as IStorageBlockBlob;
if (blockBlob == null)
{
throw new InvalidOperationException("Cannot bind a page blob using an out string.");
}
BlobCausalityManager.SetWriter(blob.Metadata, context.FunctionInstanceId);
CloudBlobStream rawStream = await blockBlob.OpenWriteAsync(context.CancellationToken);
IBlobCommitedAction committedAction = new BlobCommittedAction(blob, blobWrittenWatcher);
return(new WatchableCloudBlobStream(rawStream, committedAction));
}
public static async Task <WatchableCloudBlobStream> BindStreamAsync(ICloudBlob blob,
ValueBindingContext context, IBlobWrittenWatcher blobWrittenWatcher)
{
var blockBlob = blob as CloudBlockBlob;
if (blockBlob == null)
{
throw new InvalidOperationException("Cannot bind to page or append blobs using 'out string', 'TextWriter', or writable 'Stream' parameters.");
}
BlobCausalityManager.SetWriter(blob.Metadata, context.FunctionInstanceId);
CloudBlobStream rawStream = await blockBlob.OpenWriteAsync(context.CancellationToken);
IBlobCommitedAction committedAction = new BlobCommittedAction(blob, blobWrittenWatcher);
return(new WatchableCloudBlobStream(rawStream, committedAction));
}
