XmlObjectSerializerReadContextComplexJson.cs source code in C# .NET

                        Code:
                         / 4.0 / 4.0 / untmp / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / cdf / src / WCF / Serialization / System / Runtime / Serialization / Json / XmlObjectSerializerReadContextComplexJson.cs / 1305376 / XmlObjectSerializerReadContextComplexJson.cs
                        
                        
                            //------------------------------------------------------------ 
// Copyright (c) Microsoft Corporation.  All rights reserved.
//-----------------------------------------------------------

namespace System.Runtime.Serialization.Json 
{
    using System; 
    using System.Collections.Generic; 
    using System.Runtime;
    using System.Security; 
    using System.ServiceModel;
    using System.Text;
    using System.Xml;
 
#if USE_REFEMIT
    public class XmlObjectSerializerReadContextComplexJson : XmlObjectSerializerReadContextComplex 
#else 
    class XmlObjectSerializerReadContextComplexJson : XmlObjectSerializerReadContextComplex
#endif 
    {
        string extensionDataValueType;

        public XmlObjectSerializerReadContextComplexJson(DataContractJsonSerializer serializer, DataContract rootTypeDataContract) 
            : base(serializer, serializer.MaxItemsInObjectGraph,
                new StreamingContext(StreamingContextStates.All), 
                serializer.IgnoreExtensionDataObject) 
        {
            this.rootTypeDataContract = rootTypeDataContract; 
            this.serializerKnownTypeList = serializer.knownTypeList;
            this.dataContractSurrogate = serializer.DataContractSurrogate;
        }
 
        internal IList SerializerKnownTypeList
        { 
            get 
            {
                return this.serializerKnownTypeList; 
            }
        }

        protected override void StartReadExtensionDataValue(XmlReaderDelegator xmlReader) 
        {
            extensionDataValueType = xmlReader.GetAttribute(JsonGlobals.typeString); 
        } 

        protected override IDataNode ReadPrimitiveExtensionDataValue(XmlReaderDelegator xmlReader, string dataContractName, string dataContractNamespace) 
        {
            IDataNode dataNode;

            switch (extensionDataValueType) 
            {
                case null: 
                case JsonGlobals.stringString: 
                    dataNode = new DataNode(xmlReader.ReadContentAsString());
                    break; 
                case JsonGlobals.booleanString:
                    dataNode = new DataNode(xmlReader.ReadContentAsBoolean());
                    break;
                case JsonGlobals.numberString: 
                    dataNode = ReadNumericalPrimitiveExtensionDataValue(xmlReader);
                    break; 
                default: 
                    throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(
                        XmlObjectSerializer.CreateSerializationException(SR.GetString(SR.JsonUnexpectedAttributeValue, extensionDataValueType))); 
            }

            xmlReader.ReadEndElement();
            return dataNode; 
        }
 
        IDataNode ReadNumericalPrimitiveExtensionDataValue(XmlReaderDelegator xmlReader) 
        {
            TypeCode type; 
            object numericalValue = JsonObjectDataContract.ParseJsonNumber(xmlReader.ReadContentAsString(), out type);
            switch (type)
            {
                case TypeCode.Byte: 
                    return new DataNode((byte)numericalValue);
                case TypeCode.SByte: 
                    return new DataNode((sbyte)numericalValue); 
                case TypeCode.Int16:
                    return new DataNode((short)numericalValue); 
                case TypeCode.Int32:
                    return new DataNode((int)numericalValue);
                case TypeCode.Int64:
                    return new DataNode((long)numericalValue); 
                case TypeCode.UInt16:
                    return new DataNode((ushort)numericalValue); 
                case TypeCode.UInt32: 
                    return new DataNode((uint)numericalValue);
                case TypeCode.UInt64: 
                    return new DataNode((ulong)numericalValue);
                case TypeCode.Single:
                    return new DataNode((float)numericalValue);
                case TypeCode.Double: 
                    return new DataNode((double)numericalValue);
                case TypeCode.Decimal: 
                    return new DataNode((decimal)numericalValue); 
                default:
                    throw Fx.AssertAndThrow("JsonObjectDataContract.ParseJsonNumber shouldn't return a TypeCode that we're not expecting"); 
            }
        }

        internal static XmlObjectSerializerReadContextComplexJson CreateContext(DataContractJsonSerializer serializer, DataContract rootTypeDataContract) 
        {
            return new XmlObjectSerializerReadContextComplexJson(serializer, rootTypeDataContract); 
        } 

#if USE_REFEMIT 
        public override int GetArraySize()
#else
        internal override int GetArraySize()
#endif 
        {
            return -1; 
        } 

        protected override object ReadDataContractValue(DataContract dataContract, XmlReaderDelegator reader) 
        {
            return DataContractJsonSerializer.ReadJsonValue(dataContract, reader, this);
        }
 
#if USE_REFEMIT
        public override void ReadAttributes(XmlReaderDelegator xmlReader) 
#else 
        internal override void ReadAttributes(XmlReaderDelegator xmlReader)
#endif 
        {
            if (attributes == null)
                attributes = new Attributes();
            attributes.Reset(); 

            if (xmlReader.MoveToAttribute(JsonGlobals.typeString) && xmlReader.Value == JsonGlobals.nullString) 
            { 
                attributes.XsiNil = true;
            } 
            else if (xmlReader.MoveToAttribute(JsonGlobals.serverTypeString))
            {
                XmlQualifiedName qualifiedTypeName = JsonReaderDelegator.ParseQualifiedName(xmlReader.Value);
                attributes.XsiTypeName = qualifiedTypeName.Name; 

                string serverTypeNamespace = qualifiedTypeName.Namespace; 
 
                if (!string.IsNullOrEmpty(serverTypeNamespace))
                { 
                    switch (serverTypeNamespace[0])
                    {
                        case '#':
                            serverTypeNamespace = string.Concat(Globals.DataContractXsdBaseNamespace, serverTypeNamespace.Substring(1)); 
                            break;
                        case '\\': 
                            if (serverTypeNamespace.Length >= 2) 
                            {
                                switch (serverTypeNamespace[1]) 
                                {
                                    case '#':
                                    case '\\':
                                        serverTypeNamespace = serverTypeNamespace.Substring(1); 
                                        break;
                                    default: 
                                        break; 
                                }
                            } 
                            break;
                        default:
                            break;
                    } 
                }
 
                attributes.XsiTypeNamespace = serverTypeNamespace; 
            }
            xmlReader.MoveToElement(); 
        }

        public int GetJsonMemberIndex(XmlReaderDelegator xmlReader,  XmlDictionaryString[] memberNames, int memberIndex, ExtensionDataObject extensionData)
        { 
            int length = memberNames.Length;
            if (length != 0) 
            { 
                for (int i = 0, index = (memberIndex + 1) % length; i < length; i++, index = (index + 1) % length)
                { 
                    if (xmlReader.IsStartElement(memberNames[index], XmlDictionaryString.Empty))
                    {
                        return index;
                    } 
                }
                string name; 
                if (TryGetJsonLocalName(xmlReader, out name)) 
                {
                    for (int i = 0, index = (memberIndex + 1) % length; i < length; i++, index = (index + 1) % length) 
                    {
                        if (memberNames[index].Value == name)
                        {
                            return index; 
                        }
                    } 
                } 
            }
            HandleMemberNotFound(xmlReader, extensionData, memberIndex); 
            return length;
        }

        internal static bool TryGetJsonLocalName(XmlReaderDelegator xmlReader, out string name) 
        {
            if (xmlReader.IsStartElement(JsonGlobals.itemDictionaryString, JsonGlobals.itemDictionaryString)) 
            { 
                if (xmlReader.MoveToAttribute(JsonGlobals.itemString))
                { 
                    name = xmlReader.Value;
                    return true;
                }
            } 
            name = null;
            return false; 
        } 

        public static void ThrowMissingRequiredMembers(object obj, XmlDictionaryString[] memberNames, byte[] expectedElements, byte[] requiredElements) 
        {
            StringBuilder stringBuilder = new StringBuilder();
            int missingMembersCount = 0;
            for (int i = 0; i < memberNames.Length; i++) 
            {
                if (IsBitSet(expectedElements, i) && IsBitSet(requiredElements, i)) 
                { 
                    if (stringBuilder.Length != 0)
                        stringBuilder.Append(", "); 
                    stringBuilder.Append(memberNames[i]);
                    missingMembersCount++;
                }
            } 

            if (missingMembersCount == 1) 
            { 
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SerializationException(SR.GetString(
                 SR.JsonOneRequiredMemberNotFound, DataContract.GetClrTypeFullName(obj.GetType()), stringBuilder.ToString()))); 
            }
            else
            {
                throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SerializationException(SR.GetString( 
                    SR.JsonRequiredMembersNotFound, DataContract.GetClrTypeFullName(obj.GetType()), stringBuilder.ToString())));
            } 
        } 

 

        public static void ThrowDuplicateMemberException(object obj, XmlDictionaryString[] memberNames, int memberIndex)
        {
            throw DiagnosticUtility.ExceptionUtility.ThrowHelperError(new SerializationException( 
                SR.GetString(SR.JsonDuplicateMemberInInput, DataContract.GetClrTypeFullName(obj.GetType()), memberNames[memberIndex])));
        } 
 
        [Fx.Tag.SecurityNote(Critical = "Accesses SecurityCritical helper class 'BitFlagsGenerator'.",
            Safe = "This method is safe to call.")] 
        [SecuritySafeCritical]
        static bool IsBitSet(byte[] bytes, int bitIndex)
        {
            return BitFlagsGenerator.IsBitSet(bytes, bitIndex); 
        }
 
        protected override bool IsReadingCollectionExtensionData(XmlReaderDelegator xmlReader) 
        {
            return xmlReader.GetAttribute(JsonGlobals.typeString) == JsonGlobals.arrayString; 
        }

        protected override bool IsReadingClassExtensionData(XmlReaderDelegator xmlReader)
        { 
            return xmlReader.GetAttribute(JsonGlobals.typeString) == JsonGlobals.objectString;
        } 
 
        protected override XmlReaderDelegator CreateReaderDelegatorForReader(XmlReader xmlReader)
        { 
            return new JsonReaderDelegator(xmlReader);
        }

        internal override DataContract GetDataContract(RuntimeTypeHandle typeHandle, Type type) 
        {
            DataContract dataContract = base.GetDataContract(typeHandle, type); 
            DataContractJsonSerializer.CheckIfTypeIsReference(dataContract); 
            return dataContract;
        } 

        internal override DataContract GetDataContractSkipValidation(int typeId, RuntimeTypeHandle typeHandle, Type type)
        {
            DataContract dataContract = base.GetDataContractSkipValidation(typeId, typeHandle, type); 
            DataContractJsonSerializer.CheckIfTypeIsReference(dataContract);
            return dataContract; 
        } 

        internal override DataContract GetDataContract(int id, RuntimeTypeHandle typeHandle) 
        {
            DataContract dataContract = base.GetDataContract(id, typeHandle);
            DataContractJsonSerializer.CheckIfTypeIsReference(dataContract);
            return dataContract; 
        }
    } 
} 

// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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