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// Copyright (c) All contributors. All rights reserved.
// Licensed under the MIT license. See LICENSE file in the project root for full license information.
using System.Threading.Tasks;
using Microsoft.AspNetCore.Mvc.Formatters;
namespace MessagePack.AspNetCoreMvcFormatter
{
public class MessagePackOutputFormatter : OutputFormatter
{
private const string ContentType = "application/x-msgpack";
private readonly MessagePackSerializerOptions options;
public MessagePackOutputFormatter()
: this(null)
{
}
public MessagePackOutputFormatter(MessagePackSerializerOptions options)
{
this.options = options;
SupportedMediaTypes.Add(ContentType);
}
public override Task WriteResponseBodyAsync(OutputFormatterWriteContext context)
{
if (context.ObjectType == typeof(object))
{
if (context.Object == null)
{
#if NETSTANDARD2_0
context.HttpContext.Response.Body.WriteByte(MessagePackCode.Nil);
return Task.CompletedTask;
#else
var writer = context.HttpContext.Response.BodyWriter;
if (writer == null)
{
context.HttpContext.Response.Body.WriteByte(MessagePackCode.Nil);
return Task.CompletedTask;
}
var span = writer.GetSpan(1);
span[0] = MessagePackCode.Nil;
writer.Advance(1);
return writer.FlushAsync().AsTask();
#endif
}
else
{
#if NETSTANDARD2_0
return MessagePackSerializer.SerializeAsync(context.Object.GetType(), context.HttpContext.Response.Body, context.Object, this.options, context.HttpContext.RequestAborted);
#else
var writer = context.HttpContext.Response.BodyWriter;
if (writer == null)
{
return MessagePackSerializer.SerializeAsync(context.Object.GetType(), context.HttpContext.Response.Body, context.Object, this.options, context.HttpContext.RequestAborted);
}
MessagePackSerializer.Serialize(context.Object.GetType(), writer, context.Object, this.options, context.HttpContext.RequestAborted);
return writer.FlushAsync().AsTask();
#endif
}
}
else
{
#if NETSTANDARD2_0
return MessagePackSerializer.SerializeAsync(context.ObjectType, context.HttpContext.Response.Body, context.Object, this.options, context.HttpContext.RequestAborted);
#else
var writer = context.HttpContext.Response.BodyWriter;
if (writer == null)
{
return MessagePackSerializer.SerializeAsync(context.ObjectType, context.HttpContext.Response.Body, context.Object, this.options, context.HttpContext.RequestAborted);
}
MessagePackSerializer.Serialize(context.ObjectType, writer, context.Object, this.options, context.HttpContext.RequestAborted);
return writer.FlushAsync().AsTask();
#endif
}
}
}
}
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