/// <summary>
/// Converts a value to primitive value.
/// </summary>
/// <param name="value">The value.</param>
/// <param name="propertyType">Type of the property.</param>
/// <returns>The converted value if the value can be converted</returns>
internal object ConvertPrimitiveValue(object value, Type propertyType)
{
// System.Xml.Linq.XElement and System.Data.Linq.Binaries primitive types are not supported by ODataLib directly,
// so if the property is of one of those types, we need to convert the value to that type here.
if (propertyType != null && value != null)
{
Debug.Assert(PrimitiveType.IsKnownNullableType(propertyType), "GetPrimitiveValue must be called only for primitive types");
// Fast path for the supported primitive types that have a type code and are supported by ODataLib.
Type nonNullablePropertyType = Nullable.GetUnderlyingType(propertyType) ?? propertyType;
TypeCode typeCode = PlatformHelper.GetTypeCode(nonNullablePropertyType);
switch (typeCode)
{
case TypeCode.Boolean: // fall through
case TypeCode.Byte: // fall through
case TypeCode.DateTime: // fall through
case TypeCode.Decimal: // fall through
case TypeCode.Double: // fall through
case TypeCode.Int16: // fall through
case TypeCode.Int32: // fall through
case TypeCode.Int64: // fall through
case TypeCode.SByte: // fall through
case TypeCode.Single: // fall through
case TypeCode.String:
return(this.ConvertValueIfNeeded(value, propertyType));
}
// Do the conversion for types that are not supported by ODataLib e.g. char[], char, etc
// PropertyType might be nullable. Hence to avoid nullable checks, we currently check for
// primitiveType.ClrType
if (typeCode == TypeCode.Char ||
typeCode == TypeCode.UInt16 ||
typeCode == TypeCode.UInt32 ||
typeCode == TypeCode.UInt64 ||
nonNullablePropertyType == typeof(Char[]) ||
nonNullablePropertyType == typeof(Type) ||
nonNullablePropertyType == typeof(Uri) ||
nonNullablePropertyType == typeof(Xml.Linq.XDocument) ||
nonNullablePropertyType == typeof(Xml.Linq.XElement))
{
PrimitiveType primitiveType;
PrimitiveType.TryGetPrimitiveType(propertyType, out primitiveType);
Debug.Assert(primitiveType != null, "must be a known primitive type");
string stringValue = (string)this.ConvertValueIfNeeded(value, typeof(string));
return(primitiveType.TypeConverter.Parse(stringValue));
}
#if !ASTORIA_LIGHT && !PORTABLELIB
if (propertyType == BinaryTypeConverter.BinaryType)
{
byte[] byteArray = (byte[])this.ConvertValueIfNeeded(value, typeof(byte[]));
Debug.Assert(byteArray != null, "If the property is of type System.Data.Linq.Binary then ODataLib should have read it as byte[].");
return(Activator.CreateInstance(BinaryTypeConverter.BinaryType, byteArray));
}
#endif
}
return(this.ConvertValueIfNeeded(value, propertyType));
}
/// <summary>
/// Converts a primitive OData value to the corresponding <see cref="IEdmDelayedValue"/>.
/// </summary>
/// <param name="primitiveValue">The primitive OData value to convert.</param>
/// <param name="type">The <see cref="IEdmTypeReference"/> for the primitive value (if available).</param>
/// <returns>An <see cref="IEdmDelayedValue"/> for the <paramref name="primitiveValue"/>.</returns>
internal static IEdmDelayedValue ConvertPrimitiveValue(object primitiveValue, IEdmPrimitiveTypeReference type)
{
#if !ASTORIA_CLIENT
DebugUtils.CheckNoExternalCallers();
#endif
Debug.Assert(primitiveValue != null, "primitiveValue != null");
TypeCode typeCode = PlatformHelpers.GetTypeCode(primitiveValue.GetType());
switch (typeCode)
{
case TypeCode.Boolean:
type = EnsurePrimitiveType(type, EdmPrimitiveTypeKind.Boolean);
return(new EdmBooleanConstant(type, (bool)primitiveValue));
case TypeCode.Byte:
type = EnsurePrimitiveType(type, EdmPrimitiveTypeKind.Byte);
return(new EdmIntegerConstant(type, (byte)primitiveValue));
case TypeCode.SByte:
type = EnsurePrimitiveType(type, EdmPrimitiveTypeKind.SByte);
return(new EdmIntegerConstant(type, (sbyte)primitiveValue));
case TypeCode.Int16:
type = EnsurePrimitiveType(type, EdmPrimitiveTypeKind.Int16);
return(new EdmIntegerConstant(type, (Int16)primitiveValue));
case TypeCode.Int32:
type = EnsurePrimitiveType(type, EdmPrimitiveTypeKind.Int32);
return(new EdmIntegerConstant(type, (Int32)primitiveValue));
case TypeCode.Int64:
type = EnsurePrimitiveType(type, EdmPrimitiveTypeKind.Int64);
return(new EdmIntegerConstant(type, (Int64)primitiveValue));
case TypeCode.DateTime:
IEdmTemporalTypeReference dateTimeType = (IEdmTemporalTypeReference)EnsurePrimitiveType(type, EdmPrimitiveTypeKind.DateTime);
return(new EdmDateTimeConstant(dateTimeType, (DateTime)primitiveValue));
case TypeCode.Decimal:
IEdmDecimalTypeReference decimalType = (IEdmDecimalTypeReference)EnsurePrimitiveType(type, EdmPrimitiveTypeKind.Decimal);
return(new EdmDecimalConstant(decimalType, (decimal)primitiveValue));
case TypeCode.Single:
type = EnsurePrimitiveType(type, EdmPrimitiveTypeKind.Single);
return(new EdmFloatingConstant(type, (Single)primitiveValue));
case TypeCode.Double:
type = EnsurePrimitiveType(type, EdmPrimitiveTypeKind.Double);
return(new EdmFloatingConstant(type, (double)primitiveValue));
case TypeCode.String:
IEdmStringTypeReference stringType = (IEdmStringTypeReference)EnsurePrimitiveType(type, EdmPrimitiveTypeKind.String);
return(new EdmStringConstant(stringType, (string)primitiveValue));
default:
return(ConvertPrimitiveValueWithoutTypeCode(primitiveValue, type));
}
}
/// <summary>
/// Converts a non-spatial primitive value to the target type.
/// </summary>
/// <param name="value">The value to convert.</param>
/// <param name="targetType">The target type of the conversion.</param>
/// <returns>The converted value.</returns>
private static object ConvertNonSpatialValue(object value, Type targetType)
{
Debug.Assert(value != null, "value != null");
TypeCode targetTypeCode = PlatformHelper.GetTypeCode(targetType);
// These types can be safely converted to directly, as there is no risk of precision being lost.
switch (targetTypeCode)
{
case TypeCode.Boolean:
case TypeCode.Byte:
case TypeCode.SByte:
case TypeCode.Int16:
case TypeCode.Int32:
case TypeCode.Int64:
return(Convert.ChangeType(value, targetType, CultureInfo.InvariantCulture));
}
string stringValue = ClientConvert.ToString(value);
return(ClientConvert.ChangeType(stringValue, targetType));
}
