/// <inheritdoc/>
public override Task WriteResponseBodyAsync(OutputFormatterWriteContext context, Encoding selectedEncoding)
{
Type type = context.ObjectType;
if (type == null)
{
throw Error.ArgumentNull("type");
}
type = TypeHelper.GetTaskInnerTypeOrSelf(type);
HttpRequest request = context.HttpContext.Request;
if (request == null)
{
throw Error.InvalidOperation(SRResources.WriteToStreamAsyncMustHaveRequest);
}
HttpResponse response = context.HttpContext.Response;
if (typeof(Stream).IsAssignableFrom(type))
{
// Ideally, it should go into the "ODataRawValueSerializer",
// However, OData lib doesn't provide the method to overwrite/copyto stream
// So, Here's the workaround
Stream objStream = context.Object as Stream;
return(CopyStreamAsync(objStream, response));
}
Uri baseAddress = GetBaseAddressInternal(request);
MediaTypeHeaderValue contentType = GetContentType(response.Headers[HeaderNames.ContentType].FirstOrDefault());
Func <ODataSerializerContext> getODataSerializerContext = () =>
{
return(new ODataSerializerContext()
{
Request = request,
});
};
ODataSerializerProvider serializerProvider = request.GetRequestContainer().GetRequiredService <ODataSerializerProvider>();
return(ODataOutputFormatterHelper.WriteToStreamAsync(
type,
context.Object,
request.GetModel(),
ResultHelpers.GetODataVersion(request),
baseAddress,
contentType,
new WebApiUrlHelper(request.GetUrlHelper()),
new WebApiRequestMessage(request),
new WebApiRequestHeaders(request.Headers),
(services) => ODataMessageWrapperHelper.Create(new StreamWrapper(response.Body), response.Headers, services),
(edmType) => serializerProvider.GetEdmTypeSerializer(edmType),
(objectType) => serializerProvider.GetODataPayloadSerializer(objectType, request),
getODataSerializerContext));
}
/// <inheritdoc/>
public override void WriteResponseHeaders(OutputFormatterWriteContext context)
{
if (context == null)
{
throw Error.ArgumentNull("context");
}
Type type = context.ObjectType;
if (type == null)
{
throw Error.ArgumentNull("type");
}
type = TypeHelper.GetTaskInnerTypeOrSelf(type);
HttpRequest request = context.HttpContext.Request;
if (request == null)
{
throw Error.InvalidOperation(SRResources.WriteToStreamAsyncMustHaveRequest);
}
HttpResponse response = context.HttpContext.Response;
response.ContentType = context.ContentType.Value;
MediaTypeHeaderValue contentType = GetContentType(response.Headers[HeaderNames.ContentType].FirstOrDefault());
// Determine the content type.
MediaTypeHeaderValue newMediaType = null;
if (ODataOutputFormatterHelper.TryGetContentHeader(type, contentType, out newMediaType))
{
response.Headers[HeaderNames.ContentType] = new StringValues(newMediaType.ToString());
}
// Set the character set.
MediaTypeHeaderValue currentContentType = GetContentType(response.Headers[HeaderNames.ContentType].FirstOrDefault());
RequestHeaders requestHeader = request.GetTypedHeaders();
if (requestHeader != null && requestHeader.AcceptCharset != null)
{
IEnumerable <string> acceptCharsetValues = requestHeader.AcceptCharset.Select(cs => cs.Value.Value);
string newCharSet = string.Empty;
if (ODataOutputFormatterHelper.TryGetCharSet(currentContentType, acceptCharsetValues, out newCharSet))
{
currentContentType.CharSet = newCharSet;
response.Headers[HeaderNames.ContentType] = new StringValues(currentContentType.ToString());
}
}
// Add version header.
response.Headers[ODataVersionConstraint.ODataServiceVersionHeader] = ODataUtils.ODataVersionToString(ResultHelpers.GetODataVersion(request));
}
public override async Task <InputFormatterResult> ReadRequestBodyAsync(InputFormatterContext context, Encoding encoding)
{
if (context == null)
{
throw Error.ArgumentNull("context");
}
Type type = context.ModelType;
if (type == null)
{
throw Error.ArgumentNull("type");
}
HttpRequest request = context.HttpContext.Request;
if (request == null)
{
throw Error.InvalidOperation(SRResources.ReadFromStreamAsyncMustHaveRequest);
}
// If content length is 0 then return default value for this type
RequestHeaders contentHeaders = request.GetTypedHeaders();
object defaultValue = GetDefaultValueForType(type);
if (contentHeaders == null || contentHeaders.ContentLength == 0)
{
return(InputFormatterResult.Success(defaultValue));
}
try
{
Func <ODataDeserializerContext> getODataDeserializerContext = () =>
{
return(new ODataDeserializerContext
{
Request = request,
});
};
Action <Exception> logErrorAction = (ex) =>
{
ILogger logger = context.HttpContext.RequestServices.GetService <ILogger>();
if (logger == null)
{
throw ex;
}
logger.LogError(ex, String.Empty);
};
List <IDisposable> toDispose = new List <IDisposable>();
ODataDeserializerProvider deserializerProvider = request.GetRequestContainer().GetRequiredService <ODataDeserializerProvider>();
object result = await ODataInputFormatterHelper.ReadFromStreamAsync(
type,
defaultValue,
request.GetModel(),
ResultHelpers.GetODataVersion(request),
GetBaseAddressInternal(request),
new WebApiRequestMessage(request),
() => ODataMessageWrapperHelper.Create(new StreamWrapper(request.Body), request.Headers, request.GetODataContentIdMapping(), request.GetRequestContainer()),
(objectType) => deserializerProvider.GetEdmTypeDeserializer(objectType),
(objectType) => deserializerProvider.GetODataDeserializer(objectType, request),
getODataDeserializerContext,
(disposable) => toDispose.Add(disposable),
logErrorAction);
foreach (IDisposable obj in toDispose)
{
obj.Dispose();
}
return(InputFormatterResult.Success(result));
}
catch (Exception ex)
{
context.ModelState.AddModelError(context.ModelName, ex, context.Metadata);
return(InputFormatterResult.Failure());
}
}