/// <summary>
/// Converts a primitive data type to type.
/// </summary>
/// <param name="primitiveType">The primitive data type to convert.</param>
/// <returns>The corresponding primitive type.</returns>
private static IEdmPrimitiveTypeReference GetPrimitiveTypeReference(PrimitiveDataType primitiveType)
{
Debug.Assert(primitiveType != null, "primitiveType != null");
Type systemType = EntityModelUtils.GetPrimitiveClrType(primitiveType);
// NOTE: if the primitiveType is not nullable but the type reference constructed from the CLR type is,
// adjust the nullability if necessary.
IEdmPrimitiveTypeReference primitiveTypeReference = MetadataUtils.GetPrimitiveTypeReference(systemType);
if (primitiveType.IsNullable != primitiveTypeReference.IsNullable)
{
primitiveTypeReference = (IEdmPrimitiveTypeReference)primitiveTypeReference.Clone(primitiveType.IsNullable);
}
return(primitiveTypeReference);
}
/// <summary>
/// Gets the data type of a property value specified in the property instance payload element.
/// </summary>
/// <param name="propertyInstance">The property instance payload element to inspect.</param>
/// <returns>The data type of the property value (can be used to define the metadata for this property).</returns>
public static IEdmTypeReference GetPayloadEdmElementPropertyValueType(PropertyInstance propertyInstance)
{
ExceptionUtilities.CheckArgumentNotNull(propertyInstance, "propertyInstance");
IEdmTypeReference result = GetEdmTypeFromEntityModelTypeAnnotation(propertyInstance);
if (result == null)
{
switch (propertyInstance.ElementType)
{
case ODataPayloadElementType.NullPropertyInstance:
NullPropertyInstance nullPropertyInstance = (NullPropertyInstance)propertyInstance;
if (nullPropertyInstance.FullTypeName != null)
{
result = GetPrimitiveEdmType(nullPropertyInstance.FullTypeName);
if (result == null)
{
result = CreateComplexTypeReference(nullPropertyInstance.FullTypeName);
}
}
break;
case ODataPayloadElementType.PrimitiveProperty:
result = GetEdmTypeFromEntityModelTypeAnnotation(((PrimitiveProperty)propertyInstance).Value);
if (result == null)
{
result = GetPrimitiveEdmType(((PrimitiveProperty)propertyInstance).Value.FullTypeName);
}
break;
case ODataPayloadElementType.ComplexProperty:
result = GetEdmTypeFromEntityModelTypeAnnotation(((ComplexProperty)propertyInstance).Value);
if (result == null)
{
result = CreateComplexTypeReference(((ComplexProperty)propertyInstance).Value.FullTypeName);
}
break;
case ODataPayloadElementType.NamedStreamInstance:
result = EdmCoreModel.Instance.GetStream(isNullable: false);
break;
case ODataPayloadElementType.PrimitiveMultiValueProperty:
PrimitiveMultiValue primitiveMultiValue = ((PrimitiveMultiValueProperty)propertyInstance).Value;
result = GetEdmTypeFromEntityModelTypeAnnotation(primitiveMultiValue);
if (result == null && primitiveMultiValue.FullTypeName != null)
{
string itemTypeName = EntityModelUtils.GetCollectionItemTypeName(primitiveMultiValue.FullTypeName);
if (itemTypeName != null)
{
result = EdmCoreModel.GetCollection(GetPrimitiveEdmType(itemTypeName));
}
}
break;
case ODataPayloadElementType.ComplexMultiValueProperty:
ComplexMultiValue complexMultiValue = ((ComplexMultiValueProperty)propertyInstance).Value;
result = GetEdmTypeFromEntityModelTypeAnnotation(complexMultiValue);
if (result == null && complexMultiValue.FullTypeName != null)
{
string itemTypeName = EntityModelUtils.GetCollectionItemTypeName(complexMultiValue.FullTypeName);
if (itemTypeName != null)
{
return(EdmCoreModel.GetCollection(CreateComplexTypeReference(itemTypeName)));
}
}
break;
case ODataPayloadElementType.PrimitiveCollection:
case ODataPayloadElementType.ComplexInstanceCollection:
ExceptionUtilities.Assert(false, "Primitive and complex collections cannot be used in properties but only at the top-level.");
return(null);
default:
ExceptionUtilities.Assert(false, "GetPayloadElementPropertyValueType doesn't support '{0}' yet.", propertyInstance.ElementType);
return(null);
}
}
// Use the expected type if there's any since it also specifies metadata
if (result == null)
{
ExpectedTypeODataPayloadElementAnnotation expectedTypeAnnotation = propertyInstance.GetAnnotation <ExpectedTypeODataPayloadElementAnnotation>();
if (expectedTypeAnnotation != null && expectedTypeAnnotation.ExpectedType != null)
{
result = expectedTypeAnnotation.EdmExpectedType;
}
}
return(result);
}