/// <summary>
/// Resolves the payload type versus the expected type and validates that such combination is allowed when strict validation is enabled.
/// </summary>
/// <param name="expectedTypeKind">The expected type kind for the value.</param>
/// <param name="expectedTypeReference">The expected type reference, or null if no expected type is available.</param>
/// <param name="payloadType">The payload type, or null if the payload type was not specified, or it didn't resolve against the model.</param>
/// <returns>The target type reference to use for parsing the value.</returns>
private static IEdmTypeReference ResolveAndValidateTargetTypeStrictValidationEnabled(
EdmTypeKind expectedTypeKind,
IEdmTypeReference expectedTypeReference,
IEdmType payloadType)
{
// Strict validation logic
switch (expectedTypeKind)
{
case EdmTypeKind.Complex:
if (payloadType != null)
{
// The payload type must be compatible to the expected type.
VerifyComplexType(expectedTypeReference, payloadType, /* failIfNotRelated */ true);
// Use the payload type
return payloadType.ToTypeReference(/*nullable*/ true);
}
break;
case EdmTypeKind.Entity:
if (payloadType != null)
{
// The payload type must be assignable to the expected type.
IEdmTypeReference payloadTypeReference = payloadType.ToTypeReference(/*nullable*/ true);
ValidationUtils.ValidateEntityTypeIsAssignable((IEdmEntityTypeReference)expectedTypeReference, (IEdmEntityTypeReference)payloadTypeReference);
// Use the payload type
return payloadTypeReference;
}
break;
case EdmTypeKind.Enum:
if (payloadType != null && string.CompareOrdinal(payloadType.ODataFullName(), expectedTypeReference.ODataFullName()) != 0)
{
throw new ODataException(Strings.ValidationUtils_IncompatibleType(payloadType.ODataFullName(), expectedTypeReference.ODataFullName()));
}
break;
case EdmTypeKind.Collection:
// The type must be exactly equal - note that we intentionally ignore nullability of the items here, since the payload type
// can't specify that.
if (payloadType != null && !payloadType.IsElementTypeEquivalentTo(expectedTypeReference.Definition))
{
VerifyCollectionComplexItemType(expectedTypeReference, payloadType);
throw new ODataException(Strings.ValidationUtils_IncompatibleType(payloadType.ODataFullName(), expectedTypeReference.ODataFullName()));
}
break;
case EdmTypeKind.TypeDefinition:
if (payloadType != null && !expectedTypeReference.Definition.IsAssignableFrom(payloadType))
{
throw new ODataException(Strings.ValidationUtils_IncompatibleType(payloadType.ODataFullName(), expectedTypeReference.ODataFullName()));
}
break;
default:
throw new ODataException(Strings.General_InternalError(InternalErrorCodes.ReaderValidationUtils_ResolveAndValidateTypeName_Strict_TypeKind));
}
// Either there's no payload type, in which case use the expected one, or the payload one and the expected one are equal.
return expectedTypeReference;
}
