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//----------------------------------------------------------------
// Copyright (c) Microsoft Corporation. All rights reserved.
//----------------------------------------------------------------
namespace System.Runtime.Serialization.Json
{
using System.Xml;
#if !MONO
using System.ServiceModel;
#endif
using System.Runtime.Serialization;
using System.Globalization;
class JsonObjectDataContract : JsonDataContract
{
public JsonObjectDataContract(DataContract traditionalDataContract)
: base(traditionalDataContract)
{
}
public override object ReadJsonValueCore(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson context)
{
object obj;
string contentMode = jsonReader.GetAttribute(JsonGlobals.typeString);
switch (contentMode)
{
case JsonGlobals.nullString:
jsonReader.Skip();
obj = null;
break;
case JsonGlobals.booleanString:
obj = jsonReader.ReadElementContentAsBoolean();
break;
case JsonGlobals.stringString:
case null:
obj = jsonReader.ReadElementContentAsString();
break;
case JsonGlobals.numberString:
obj = ParseJsonNumber(jsonReader.ReadElementContentAsString());
break;
case JsonGlobals.objectString:
jsonReader.Skip();
obj = new object();
break;
case JsonGlobals.arrayString:
// Read as object array
return DataContractJsonSerializer.ReadJsonValue(DataContract.GetDataContract(Globals.TypeOfObjectArray), jsonReader, context);
default:
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
XmlObjectSerializer.CreateSerializationException(SR.GetString(SR.JsonUnexpectedAttributeValue, contentMode)));
}
if (context != null)
{
context.AddNewObject(obj);
}
return obj;
}
public override void WriteJsonValueCore(XmlWriterDelegator jsonWriter, object obj, XmlObjectSerializerWriteContextComplexJson context, RuntimeTypeHandle declaredTypeHandle)
{
jsonWriter.WriteAttributeString(null, JsonGlobals.typeString, null, JsonGlobals.objectString);
}
internal static object ParseJsonNumber(string value, out TypeCode objectTypeCode)
{
if (value == null)
{
throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new XmlException(System.Runtime.Serialization.SR.GetString(System.Runtime.Serialization.SR.XmlInvalidConversion, value, Globals.TypeOfInt)));
}
if (value.IndexOfAny(JsonGlobals.floatingPointCharacters) == -1)
{
int intValue;
if (Int32.TryParse(value, NumberStyles.Float, NumberFormatInfo.InvariantInfo, out intValue))
{
objectTypeCode = TypeCode.Int32;
return intValue;
}
long longValue;
if (Int64.TryParse(value, NumberStyles.Float, NumberFormatInfo.InvariantInfo, out longValue))
{
objectTypeCode = TypeCode.Int64;
return longValue;
}
}
decimal decimalValue;
if (Decimal.TryParse(value, NumberStyles.Float, NumberFormatInfo.InvariantInfo, out decimalValue))
{
objectTypeCode = TypeCode.Decimal;
//check for decimal underflow
if (decimalValue == Decimal.Zero)
{
double doubleValue = XmlConverter.ToDouble(value);
if (doubleValue != 0.0)
{
objectTypeCode = TypeCode.Double;
return doubleValue;
}
}
return decimalValue;
}
objectTypeCode = TypeCode.Double;
return XmlConverter.ToDouble(value);
}
static object ParseJsonNumber(string value)
{
TypeCode unusedTypeCode;
return ParseJsonNumber(value, out unusedTypeCode);
}
}
}
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