public void ToParameterDescriptor_ReturnsExpectedDescriptor()
{
Mock<IArgumentBinding<IStorageBlobContainer>> mockArgumentBinding = new Mock<IArgumentBinding<IStorageBlobContainer>>(MockBehavior.Strict);
Mock<IStorageBlobClient> mockStorageClient = new Mock<IStorageBlobClient>(MockBehavior.Strict);
Mock<IBindableBlobPath> mockBlobPath = new Mock<IBindableBlobPath>(MockBehavior.Strict);
BlobContainerBinding binding = new BlobContainerBinding("testparam", mockArgumentBinding.Object, mockStorageClient.Object, mockBlobPath.Object);
ParameterDescriptor descriptor = binding.ToParameterDescriptor();
Assert.Equal(typeof(ParameterDescriptor), descriptor.GetType());
Assert.Equal("testparam", descriptor.Name);
Assert.Equal("Enter the blob container name or blob path prefix", descriptor.DisplayHints.Prompt);
}
public async Task <IBinding> TryCreateAsync(BindingProviderContext context)
{
ParameterInfo parameter = context.Parameter;
BlobAttribute blobAttribute = parameter.GetCustomAttribute <BlobAttribute>(inherit: false);
if (blobAttribute == null)
{
return(null);
}
string resolvedPath = Resolve(blobAttribute.BlobPath);
IBindableBlobPath path = null;
IStorageAccount account = await _accountProvider.GetStorageAccountAsync(context.Parameter, context.CancellationToken);
StorageClientFactoryContext clientFactoryContext = new StorageClientFactoryContext
{
Parameter = context.Parameter
};
IStorageBlobClient client = account.CreateBlobClient(clientFactoryContext);
// first try to bind to the Container
IArgumentBinding <IStorageBlobContainer> containerArgumentBinding = _blobContainerArgumentProvider.TryCreate(parameter);
if (containerArgumentBinding == null)
{
// if this isn't a Container binding, try a Blob binding
IBlobArgumentBinding blobArgumentBinding = _blobArgumentProvider.TryCreate(parameter, blobAttribute.Access);
if (blobArgumentBinding == null)
{
throw new InvalidOperationException("Can't bind Blob to type '" + parameter.ParameterType + "'.");
}
path = BindableBlobPath.Create(resolvedPath);
path.ValidateContractCompatibility(context.BindingDataContract);
return(new BlobBinding(parameter.Name, blobArgumentBinding, client, path));
}
path = BindableBlobPath.Create(resolvedPath, isContainerBinding: true);
path.ValidateContractCompatibility(context.BindingDataContract);
BlobContainerBinding.ValidateContainerBinding(blobAttribute, parameter.ParameterType, path);
return(new BlobContainerBinding(parameter.Name, containerArgumentBinding, client, path));
}