public async override Task<InputFormatterResult> ReadRequestBodyAsync(InputFormatterContext context, Encoding selectedEncoding)
{
var serializationStrategies = DataContractSerializationStrategies.Create(context.ModelType);
string content;
using (var reader = new StreamReader(context.HttpContext.Request.Body, selectedEncoding))
{
Task<string> contentReading = reader.ReadToEndAsync();
content = await contentReading;
}
using (MemoryStream stream = new MemoryStream())
{
stream.Write(Encoding.UTF8.GetBytes(content));
content = null;
stream.Position = 0;
object composedInstance = serializationStrategies.ComposedModelJsonSerializer.ReadObject(stream);
var composedInstances = composedInstance as IEnumerable;
if (composedInstances != null)
{
foreach (var item in composedInstances)
{
var extensibleInstance = item as IExtensibleDataObject;
if (extensibleInstance != null)
extensibleInstance.ExtensionData = null;
}
}
else
{
var extensibleInstance = composedInstance as IExtensibleDataObject;
if (extensibleInstance != null)
extensibleInstance.ExtensionData = null;
}
stream.SetLength(0);
serializationStrategies.ComposedModelXmlSerializer.WriteObject(stream, composedInstance);
stream.Position = 0;
object model = serializationStrategies.BaseModelSerializer.ReadObject(stream);
return await InputFormatterResult.SuccessAsync(model);
}
}
public async override Task WriteResponseBodyAsync(OutputFormatterWriteContext context, Encoding selectedEncoding)
{
var serializationStrategies = DataContractSerializationStrategies.Create(context.ObjectType);
using (var stream = new MemoryStream())
{
var items = context.Object as IEnumerable;
if (items != null)
{
var composedInstances = serializationStrategies.ComposedItemsCollectionFactory();
foreach (var item in items)
{
serializationStrategies.BaseItemXmlSerializer.WriteObject(stream, item);
stream.Position = 0;
// extra cycle to handle incorrect collection serialization
var composedInstance = serializationStrategies.ComposedItemXmlDeserializer.Deserialize(stream);
stream.SetLength(0);
composedInstances.Add(composedInstance);
}
stream.SetLength(0);
serializationStrategies.ComposedModelJsonSerializer.WriteObject(stream, composedInstances);
}
else
{
serializationStrategies.BaseItemXmlSerializer.WriteObject(stream, context.Object);
stream.Position = 0;
// extra cycle to handle incorrect collection serialization
var composedInstance = serializationStrategies.ComposedItemXmlDeserializer.Deserialize(stream);
stream.SetLength(0);
serializationStrategies.ComposedModelJsonSerializer.WriteObject(stream, composedInstance);
}
stream.Position = 0;
using (StreamReader reader = new StreamReader(stream))
{
string json = reader.ReadToEnd();
await context.HttpContext.Response.WriteAsync(json, selectedEncoding);
}
}
}
