90 lines
4.0 KiB
C#
90 lines
4.0 KiB
C#
//----------------------------------------------------------------
|
|
// Copyright (c) Microsoft Corporation. All rights reserved.
|
|
//----------------------------------------------------------------
|
|
|
|
namespace System.Runtime.Serialization.Json
|
|
{
|
|
using System.Xml;
|
|
using System.Collections.Generic;
|
|
using System.IO;
|
|
using System.Text;
|
|
|
|
class JsonXmlDataContract : JsonDataContract
|
|
{
|
|
public JsonXmlDataContract(XmlDataContract traditionalXmlDataContract)
|
|
: base(traditionalXmlDataContract)
|
|
{
|
|
}
|
|
|
|
public override object ReadJsonValueCore(XmlReaderDelegator jsonReader, XmlObjectSerializerReadContextComplexJson context)
|
|
{
|
|
string xmlContent = jsonReader.ReadElementContentAsString();
|
|
|
|
DataContractSerializer dataContractSerializer = new DataContractSerializer(TraditionalDataContract.UnderlyingType,
|
|
GetKnownTypesFromContext(context, (context == null) ? null : context.SerializerKnownTypeList), 1, false, false, null); // maxItemsInObjectGraph // ignoreExtensionDataObject // preserveObjectReferences // dataContractSurrogate
|
|
|
|
MemoryStream memoryStream = new MemoryStream(Encoding.UTF8.GetBytes(xmlContent));
|
|
object xmlValue;
|
|
XmlDictionaryReaderQuotas quotas = ((JsonReaderDelegator)jsonReader).ReaderQuotas;
|
|
if (quotas == null)
|
|
{
|
|
xmlValue = dataContractSerializer.ReadObject(memoryStream);
|
|
}
|
|
else
|
|
{
|
|
xmlValue = dataContractSerializer.ReadObject(XmlDictionaryReader.CreateTextReader(memoryStream, quotas));
|
|
}
|
|
if (context != null)
|
|
{
|
|
context.AddNewObject(xmlValue);
|
|
}
|
|
return xmlValue;
|
|
}
|
|
|
|
public override void WriteJsonValueCore(XmlWriterDelegator jsonWriter, object obj, XmlObjectSerializerWriteContextComplexJson context, RuntimeTypeHandle declaredTypeHandle)
|
|
{
|
|
DataContractSerializer dataContractSerializer = new DataContractSerializer(Type.GetTypeFromHandle(declaredTypeHandle),
|
|
GetKnownTypesFromContext(context, (context == null) ? null : context.SerializerKnownTypeList), 1, false, false, null); // maxItemsInObjectGraph // ignoreExtensionDataObject // preserveObjectReferences // dataContractSurrogate
|
|
|
|
MemoryStream memoryStream = new MemoryStream();
|
|
dataContractSerializer.WriteObject(memoryStream, obj);
|
|
memoryStream.Position = 0;
|
|
string serialized = new StreamReader(memoryStream).ReadToEnd();
|
|
jsonWriter.WriteString(serialized);
|
|
}
|
|
|
|
List<Type> GetKnownTypesFromContext(XmlObjectSerializerContext context, IList<Type> serializerKnownTypeList)
|
|
{
|
|
List<Type> knownTypesList = new List<Type>();
|
|
if (context != null)
|
|
{
|
|
List<XmlQualifiedName> stableNames = new List<XmlQualifiedName>();
|
|
Dictionary<XmlQualifiedName, DataContract>[] entries = context.scopedKnownTypes.dataContractDictionaries;
|
|
if (entries != null)
|
|
{
|
|
for (int i = 0; i < entries.Length; i++)
|
|
{
|
|
Dictionary<XmlQualifiedName, DataContract> entry = entries[i];
|
|
if (entry != null)
|
|
{
|
|
foreach (KeyValuePair<XmlQualifiedName, DataContract> pair in entry)
|
|
{
|
|
if (!stableNames.Contains(pair.Key))
|
|
{
|
|
stableNames.Add(pair.Key);
|
|
knownTypesList.Add(pair.Value.UnderlyingType);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if (serializerKnownTypeList != null)
|
|
{
|
|
knownTypesList.AddRange(serializerKnownTypeList);
|
|
}
|
|
}
|
|
return knownTypesList;
|
|
}
|
|
}
|
|
}
|