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