/// <summary>
/// Extension method for IPayloadTransformFactory which sets a composite transformed payload.
/// </summary>
/// <typeparam name="TPayload">Payload object type.</typeparam>
/// <param name="factory">Payload transform factory.</param>
/// <param name="payload">Original payload.</param>
/// <param name="transformedPayload">Transformed payload.</param>
/// <returns>True if the transform is applied else returns false.</returns>
public static bool TryTransform <TPayload>(this IPayloadTransformFactory factory, TPayload payload, out TPayload transformedPayload)
{
ExceptionUtilities.CheckArgumentNotNull(factory, "factory");
IPayloadTransform <TPayload> payloadElementTransform = factory.GetTransform <TPayload>();
transformedPayload = default(TPayload);
return(payloadElementTransform.TryTransform(payload, out transformedPayload));
}
/// <summary>
/// Returns the payload to be used for this test case and the specified test configuration.
/// </summary>
/// <param name="testConfiguration">The test configuration to use.</param>
/// <returns>The payload to use for testing.</returns>
public static byte[] GetPayload(
ReaderTestConfiguration testConfiguration,
List <Func <ReaderTestConfiguration, Func <ODataPayloadElement, ODataPayloadElement> > > payloadNormalizers,
PayloadReaderTestDescriptor.Settings settings,
ODataPayloadElement payloadElement)
{
IPayloadSerializer payloadSerializer = null;
// Apply all payload element transforms before serialization.
IPayloadTransform <ODataPayloadElement> payloadElementTransform = settings.PayloadTransformFactory.GetTransform <ODataPayloadElement>();
ODataPayloadElement transformedODataElement = null;
if (payloadElementTransform.TryTransform(payloadElement, out transformedODataElement))
{
payloadElement = transformedODataElement;
}
ODataPayloadElement payloadElementToSerialize = payloadElement;
// Apply all normalizers/fixups before serialization
if (payloadNormalizers != null)
{
ODataPayloadElement payloadElementCopy = null;
foreach (var getPayloadNormalizerFunc in payloadNormalizers)
{
var normalizer = getPayloadNormalizerFunc(testConfiguration);
if (normalizer != null)
{
if (payloadElementCopy == null)
{
payloadElementCopy = payloadElementToSerialize.DeepCopy();
}
payloadElementCopy = normalizer(payloadElementCopy);
}
}
payloadElementToSerialize = payloadElementCopy ?? payloadElementToSerialize;
}
if (testConfiguration.Format == ODataFormat.Atom)
{
payloadSerializer = new XmlPayloadSerializer(settings.PayloadElementToXmlConverter);
}
else if (testConfiguration.Format == ODataFormat.Json)
{
// Create a copy of the payload element so that we can add annotations to it.
payloadElementToSerialize = payloadElementToSerialize.DeepCopy();
// Annotate elements with version and response/request as appropriate
PayloadFormatVersionAnnotatingVisitor.AnnotateJsonLight(
payloadElementToSerialize,
testConfiguration.Version.ToDataServiceProtocolVersion(),
testConfiguration.IsRequest);
payloadSerializer = new JsonPayloadSerializer(settings.PayloadElementToJsonLightConverter.ConvertToJsonLight);
}
else if (testConfiguration.Format == null)
{
if (payloadElementToSerialize.ElementType == ODataPayloadElementType.PrimitiveValue)
{
PrimitiveValue primitiveValue = (PrimitiveValue)payloadElementToSerialize;
if (primitiveValue.ClrValue == null)
{
throw new NotSupportedException("Reading null values is not supported (since we don't support writing null values).");
}
else if (primitiveValue.ClrValue.GetType() == typeof(byte[]))
{
payloadSerializer = settings.BinaryValuePayloadElementConverter;
}
else
{
payloadSerializer = settings.TextValuePayloadElementConverter;
}
}
else if (payloadElementToSerialize.ElementType == ODataPayloadElementType.BatchRequestPayload || payloadElementToSerialize.ElementType == ODataPayloadElementType.BatchResponsePayload)
{
return(SerializeBatchPayload(payloadElementToSerialize, settings));
}
else
{
throw new NotImplementedException("Default format not yet implemented for payload test descriptor and payload element type '" + payloadElementToSerialize.ElementType + "'.");
}
}
else
{
throw new NotSupportedException("Unexpected format.");
}
// Default encoding is UTF8
return(payloadSerializer.SerializeToBinary(payloadElementToSerialize, null));
}