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 async Task BlobTrigger_IfHasUnboundParameter_CanCall()
{
// Arrange
var client = account.CreateBlobServiceClient();
var container = client.GetBlobContainerClient(ContainerName);
const string inputBlobName = "note-monday.csv";
var inputBlob = container.GetBlockBlobClient(inputBlobName);
await container.CreateIfNotExistsAsync();
await inputBlob.UploadTextAsync("abc");
IDictionary <string, object> arguments = new Dictionary <string, object>
{
{ "values", ContainerName + "/" + inputBlobName },
{ "unbound", "test" }
};
// Act
await CallAsync(account, typeof(BlobProgram), "UnboundParameter", arguments);
var outputBlob = container.GetBlockBlobClient("note.csv");
string content = await outputBlob.DownloadTextAsync();
Assert.Equal("done", content);
// $$$ Put this in its own unit test?
Guid?guid = BlobCausalityManager.GetWriterAsync(outputBlob,
CancellationToken.None).GetAwaiter().GetResult();
Assert.True(guid != Guid.Empty, "Blob is missing causality information");
}
public void SetWriter_IfNullObject_Throws()
{
// Arrange
Guid g = Guid.NewGuid();
// Act & Assert
ExceptionAssert.ThrowsArgumentNull(() => BlobCausalityManager.SetWriter(null, g), "metadata");
}
public void GetWriter_IfFetchFails_ReturnsNull()
{
// Arrange
Mock <BlobBaseClient> blobMock = SetupBlobMock(isFetchSuccess: false);
// Act
Guid?writer = BlobCausalityManager.GetWriterAsync(blobMock.Object, CancellationToken.None).GetAwaiter().GetResult();
// Assert
Assert.Null(writer);
blobMock.Verify();
}
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 void GetWriter_IfMetadataDoesNotHaveWriterProperty_ReturnsNull()
{
// Arrange
Mock <ICloudBlob> blobMock = SetupBlobMock(isFetchSuccess: true);
// Act
Guid?writer = BlobCausalityManager.GetWriterAsync(blobMock.Object, CancellationToken.None).GetAwaiter().GetResult();
// Assert
Assert.Null(writer);
blobMock.Verify();
}
public void GetWriter_IfMetadataPropertyIsGuid_ReturnsThatGuid()
{
// Arrange
Guid expected = Guid.NewGuid();
Mock <ICloudBlob> blobMock = SetupBlobMock(isFetchSuccess: true);
blobMock.Object.Metadata[BlobMetadataKeys.ParentId] = expected.ToString();
// Act
Guid?writer = BlobCausalityManager.GetWriterAsync(blobMock.Object, CancellationToken.None).GetAwaiter().GetResult();
// Assert
Assert.Equal(expected, writer);
blobMock.Verify();
}
public void GetWriter_IfMetadataPropertyIsNotGuid_ReturnsNull()
{
// Arrange
Mock <BlobBaseClient> blobMock = SetupBlobMock(
isFetchSuccess: true,
new Dictionary <string, string>()
{
{ BlobMetadataKeys.ParentId, "abc" }
});
// Act
Guid?writer = BlobCausalityManager.GetWriterAsync(blobMock.Object, CancellationToken.None).GetAwaiter().GetResult();
// Assert
Assert.Null(writer);
blobMock.Verify();
}
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));
}
public void GetWriter_IfMetadataPropertyIsGuid_ReturnsThatGuid()
{
// Arrange
Guid expected = Guid.NewGuid();
Mock <BlobBaseClient> blobMock = SetupBlobMock(
isFetchSuccess: true,
new Dictionary <string, string>()
{
{ BlobMetadataKeys.ParentId, expected.ToString() }
});
// Act
Guid?writer = BlobCausalityManager.GetWriterAsync(blobMock.Object, CancellationToken.None).GetAwaiter().GetResult();
// Assert
Assert.AreEqual(expected, writer);
blobMock.Verify();
}
