public Task <IStorageBlob> ConvertAsync(string input, CancellationToken cancellationToken)
{
BlobPath path = BlobPath.ParseAndValidate(input);
IStorageBlobContainer container = _client.GetContainerReference(path.ContainerName);
return(container.GetBlobReferenceFromServerAsync(path.BlobName, cancellationToken));
}
// For describing InvokeStrings.
private async Task <IStorageBlob> ConvertFromInvokeString(DirectInvokeString input, Attribute attr, ValueBindingContext context)
{
var attrResolved = (BlobTriggerAttribute)attr;
var account = await _accountProvider.GetStorageAccountAsync(attrResolved, CancellationToken.None);
var client = account.CreateBlobClient();
var cancellationToken = context.CancellationToken;
BlobPath path = BlobPath.ParseAndValidate(input.Value);
IStorageBlobContainer container = client.GetContainerReference(path.ContainerName);
var blob = await container.GetBlobReferenceFromServerAsync(path.BlobName, cancellationToken);
return(blob);
}
private static async Task<IStorageBlob> GetExistingOrNewBlockBlobReferenceAsync(IStorageBlobContainer container,
string blobName, CancellationToken cancellationToken)
{
try
{
return await container.GetBlobReferenceFromServerAsync(blobName, cancellationToken);
}
catch (StorageException exception)
{
RequestResult result = exception.RequestInformation;
if (result == null || result.HttpStatusCode != 404)
{
throw;
}
else
{
return container.GetBlockBlobReference(blobName);
}
}
}
private static async Task <IStorageBlob> GetExistingOrNewBlockBlobReferenceAsync(IStorageBlobContainer container,
string blobName, CancellationToken cancellationToken)
{
try
{
return(await container.GetBlobReferenceFromServerAsync(blobName, cancellationToken));
}
catch (StorageException exception)
{
RequestResult result = exception.RequestInformation;
if (result == null || result.HttpStatusCode != 404)
{
throw;
}
else
{
return(container.GetBlockBlobReference(blobName));
}
}
}