public async Task <IListener> CreateAsync(IFunctionExecutor executor, CancellationToken cancellationToken)
{
SharedQueueWatcher sharedQueueWatcher = _sharedContextProvider.GetOrCreate <SharedQueueWatcher>(
new SharedQueueWatcherFactory(_messageEnqueuedWatcherSetter));
SharedBlobListener sharedBlobListener = _sharedContextProvider.GetOrCreate <SharedBlobListener>(
new SharedBlobListenerFactory(_account, _backgroundExceptionDispatcher, _blobWrittenWatcherSetter));
// Note that these clients are intentionally for the storage account rather than for the dashboard account.
// We use the storage, not dashboard, account for the blob receipt container and blob trigger queues.
IStorageQueueClient queueClient = _account.CreateQueueClient();
IStorageBlobClient blobClient = _account.CreateBlobClient();
string hostId = await _hostIdProvider.GetHostIdAsync(cancellationToken);
string hostBlobTriggerQueueName = HostQueueNames.GetHostBlobTriggerQueueName(hostId);
IStorageQueue hostBlobTriggerQueue = queueClient.GetQueueReference(hostBlobTriggerQueueName);
IListener blobDiscoveryToQueueMessageListener = await CreateBlobDiscoveryToQueueMessageListenerAsync(
hostId, sharedBlobListener, blobClient, hostBlobTriggerQueue, sharedQueueWatcher, cancellationToken);
IListener queueMessageToTriggerExecutionListener = CreateQueueMessageToTriggerExecutionListener(executor,
_sharedContextProvider, sharedQueueWatcher, queueClient, hostBlobTriggerQueue, blobClient,
sharedBlobListener.BlobWritterWatcher);
IListener compositeListener = new CompositeListener(
blobDiscoveryToQueueMessageListener,
queueMessageToTriggerExecutionListener);
return(compositeListener);
}
public void Run()
{
StreamSink <int> sX = new StreamSink <int>();
StreamSink <int> sY = new StreamSink <int>();
// Should throw an exception because you're not allowed to use Send() inside
// a callback.
IListener l = new CompositeListener(new[]
{
sX.Listen(x => sY.Send(x)),
sY.Listen(Console.WriteLine)
});
sX.Send(1);
sX.Send(2);
sX.Send(3);
l.Unlisten();
}