/// <inheritdoc/>
public override void SetDefaultContentHeaders(Type type, HttpContentHeaders headers, MediaTypeHeaderValue mediaType)
{
// Determine the content type or let base class handle it.
MediaTypeHeaderValue newMediaType = null;
if (ODataOutputFormatterHelper.TryGetContentHeader(type, mediaType, out newMediaType))
{
headers.ContentType = newMediaType;
}
else
{
// This is the case when a user creates a new ObjectContent<T> passing in a null mediaType
base.SetDefaultContentHeaders(type, headers, mediaType);
}
// Set the character set.
IEnumerable <string> acceptCharsetValues = Request.Headers.AcceptCharset.Select(cs => cs.Value);
string newCharSet = String.Empty;
if (ODataOutputFormatterHelper.TryGetCharSet(headers.ContentType, acceptCharsetValues, out newCharSet))
{
headers.ContentType.CharSet = newCharSet;
}
// Add version header.
headers.TryAddWithoutValidation(
ODataVersionConstraint.ODataServiceVersionHeader,
ODataUtils.ODataVersionToString(ResultHelpers.GetODataResponseVersion(Request)));
}
internal static Task <HttpResponseMessage> CreateODataBatchResponseAsync(this HttpRequestMessage request, IEnumerable <ODataBatchResponseItem> responses, ODataMessageQuotas messageQuotas)
{
Contract.Assert(request != null);
ODataVersion odataVersion = ResultHelpers.GetODataResponseVersion(request);
IServiceProvider requestContainer = request.GetRequestContainer();
ODataMessageWriterSettings writerSettings =
requestContainer.GetRequiredService <ODataMessageWriterSettings>();
writerSettings.Version = odataVersion;
writerSettings.MessageQuotas = messageQuotas;
MediaTypeHeaderValue responseContentType = null;
if (request.Headers.Accept.Any(
t => t.MediaType.Equals(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeMime, StringComparison.OrdinalIgnoreCase)))
{
responseContentType = MediaTypeHeaderValue.Parse(
String.Format(CultureInfo.InvariantCulture, "multipart/mixed;boundary=batchresponse_{0}",
Guid.NewGuid()));
}
else if (request.Headers.Accept.Any(
t => t.MediaType.Equals(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeJson, StringComparison.OrdinalIgnoreCase)))
{
responseContentType = MediaTypeHeaderValue.Parse(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeJson);
}
HttpResponseMessage response = request.CreateResponse(HttpStatusCode.OK);
response.Content = new ODataBatchContent(responses, requestContainer, responseContentType);
return(Task.FromResult(response));
}
/// <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.GetODataResponseVersion(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));
}
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);
}
try
{
HttpResponse response = context.HttpContext.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>();
ODataOutputFormatterHelper.WriteToStream(
type,
context.Object,
request.GetModel(),
ResultHelpers.GetODataResponseVersion(request),
baseAddress,
contentType,
new WebApiUrlHelper(request.GetUrlHelper()),
new WebApiRequestMessage(request),
new WebApiRequestHeaders(request.Headers),
(services) => ODataMessageWrapperHelper.Create(response.Body, response.Headers, services),
(edmType) => serializerProvider.GetEdmTypeSerializer(edmType),
(objectType) => serializerProvider.GetODataPayloadSerializer(objectType, request),
getODataSerializerContext);
return(TaskHelpers.Completed());
}
catch (Exception ex)
{
return(TaskHelpers.FromError(ex));
}
}
internal static Task <HttpResponseMessage> CreateODataBatchResponseAsync(this HttpRequestMessage request, IEnumerable <ODataBatchResponseItem> responses, ODataMessageQuotas messageQuotas)
{
Contract.Assert(request != null);
ODataVersion odataVersion = ResultHelpers.GetODataResponseVersion(request);
IServiceProvider requestContainer = request.GetRequestContainer();
ODataMessageWriterSettings writerSettings =
requestContainer.GetRequiredService <ODataMessageWriterSettings>();
writerSettings.Version = odataVersion;
writerSettings.MessageQuotas = messageQuotas;
HttpHeaderValueCollection <MediaTypeWithQualityHeaderValue> acceptHeaderValues = request.Headers.Accept;
MediaTypeHeaderValue responseContentType = null;
foreach (MediaTypeWithQualityHeaderValue acceptHeader in acceptHeaderValues.OrderByDescending(h => h.Quality == null ? 1 : h.Quality))
{
if (acceptHeader.MediaType.Equals(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeMime, StringComparison.OrdinalIgnoreCase))
{
responseContentType = MediaTypeHeaderValue.Parse(
String.Format(CultureInfo.InvariantCulture, "multipart/mixed;boundary=batchresponse_{0}",
Guid.NewGuid()));
break;
}
else if (acceptHeader.MediaType.Equals(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeJson, StringComparison.OrdinalIgnoreCase))
{
responseContentType = MediaTypeHeaderValue.Parse(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeJson);
break;
}
}
if (responseContentType == null)
{
// In absence of accept, if request was JSON then default response to be JSON.
// Note that, if responseContentType is not set, then it will default to multipart/mixed
// when constructing the BatchContent, so we don't need to handle that case here
if (request.Content != null && request.Content.Headers.Any(h => String.Equals(h.Key, ODataBatchHttpRequestMessageExtensions.ContentType, StringComparison.OrdinalIgnoreCase) &&
h.Value.Any(v => v.IndexOf(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeJson, StringComparison.OrdinalIgnoreCase) > -1)))
{
responseContentType = MediaTypeHeaderValue.Parse(ODataBatchHttpRequestMessageExtensions.BatchMediaTypeJson);
}
}
HttpResponseMessage response = request.CreateResponse(HttpStatusCode.OK);
response.Content = new ODataBatchContent(responses, requestContainer, responseContentType);
return(Task.FromResult(response));
}
/// <inheritdoc/>
public override void SetDefaultContentHeaders(Type type, HttpContentHeaders headers, MediaTypeHeaderValue mediaType)
{
// Determine the content type or let base class handle it.
MediaTypeHeaderValue newMediaType = null;
if (ODataOutputFormatterHelper.TryGetContentHeader(type, mediaType, out newMediaType))
{
headers.ContentType = newMediaType;
}
else
{
// This is the case when a user creates a new ObjectContent<T> passing in a null mediaType
base.SetDefaultContentHeaders(type, headers, mediaType);
}
// Set the character set.
IEnumerable <string> acceptCharsetValues = Request.Headers.AcceptCharset.Select(cs => cs.Value);
string newCharSet = String.Empty;
if (ODataOutputFormatterHelper.TryGetCharSet(headers.ContentType, acceptCharsetValues, out newCharSet))
{
headers.ContentType.CharSet = newCharSet;
}
// Add version header.
headers.TryAddWithoutValidation(
ODataVersionConstraint.ODataServiceVersionHeader,
ODataUtils.ODataVersionToString(ResultHelpers.GetODataResponseVersion(Request)));
// Add Preference-Applied headers
var responseMessage = ODataOutputFormatterHelper.PrepareResponseMessage(
new WebApiRequestMessage(Request),
new WebApiRequestHeaders(Request.Headers),
(services) => ODataMessageWrapperHelper.Create(null, headers, services));
foreach (var header in responseMessage.Headers)
{
if (!headers.Contains(header.Key))
{
headers.TryAddWithoutValidation(header.Key, header.Value);
}
}
}
/// <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.GetODataResponseVersion(request));
}
public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content,
TransportContext transportContext, CancellationToken cancellationToken)
{
if (type == null)
{
throw Error.ArgumentNull("type");
}
if (writeStream == null)
{
throw Error.ArgumentNull("writeStream");
}
if (Request == null)
{
throw Error.InvalidOperation(SRResources.WriteToStreamAsyncMustHaveRequest);
}
if (cancellationToken.IsCancellationRequested)
{
return(TaskHelpers.Canceled());
}
try
{
HttpConfiguration configuration = Request.GetConfiguration();
if (configuration == null)
{
throw Error.InvalidOperation(SRResources.RequestMustContainConfiguration);
}
HttpContentHeaders contentHeaders = (content == null) ? null : content.Headers;
UrlHelper urlHelper = Request.GetUrlHelper() ?? new UrlHelper(Request);
Func <ODataSerializerContext> getODataSerializerContext = () =>
{
return(new ODataSerializerContext()
{
Request = Request,
Url = urlHelper,
});
};
ODataSerializerProvider serializerProvider = Request.GetRequestContainer()
.GetRequiredService <ODataSerializerProvider>();
ODataOutputFormatterHelper.WriteToStream(
type,
value,
Request.GetModel(),
ResultHelpers.GetODataResponseVersion(Request),
GetBaseAddressInternal(Request),
contentHeaders == null ? null : contentHeaders.ContentType,
new WebApiUrlHelper(urlHelper),
new WebApiRequestMessage(Request),
new WebApiRequestHeaders(Request.Headers),
(services) => ODataMessageWrapperHelper.Create(writeStream, contentHeaders, services),
(edmType) => serializerProvider.GetEdmTypeSerializer(edmType),
(objectType) => serializerProvider.GetODataPayloadSerializer(objectType, Request),
getODataSerializerContext);
return(TaskHelpers.Completed());
}
catch (Exception ex)
{
return(TaskHelpers.FromError(ex));
}
}
public override Task <object> ReadFromStreamAsync(Type type, Stream readStream, HttpContent content, IFormatterLogger formatterLogger)
{
if (type == null)
{
throw Error.ArgumentNull("type");
}
if (readStream == null)
{
throw Error.ArgumentNull("readStream");
}
if (Request == null)
{
throw Error.InvalidOperation(SRResources.ReadFromStreamAsyncMustHaveRequest);
}
object defaultValue = GetDefaultValueForType(type);
// If content length is 0 then return default value for this type
HttpContentHeaders contentHeaders = (content == null) ? null : content.Headers;
if (contentHeaders == null || contentHeaders.ContentLength == 0)
{
return(Task.FromResult(defaultValue));
}
try
{
Func <ODataDeserializerContext> getODataDeserializerContext = () =>
{
return(new ODataDeserializerContext
{
Request = Request,
});
};
Action <Exception> logErrorAction = (ex) =>
{
if (formatterLogger == null)
{
throw ex;
}
formatterLogger.LogError(String.Empty, ex);
};
ODataDeserializerProvider deserializerProvider = Request.GetRequestContainer()
.GetRequiredService <ODataDeserializerProvider>();
return(Task.FromResult(ODataInputFormatterHelper.ReadFromStream(
type,
defaultValue,
Request.GetModel(),
ResultHelpers.GetODataResponseVersion(Request),
GetBaseAddressInternal(Request),
new WebApiRequestMessage(Request),
() => ODataMessageWrapperHelper.Create(readStream, contentHeaders, Request.GetODataContentIdMapping(), Request.GetRequestContainer()),
(objectType) => deserializerProvider.GetEdmTypeDeserializer(objectType),
(objectType) => deserializerProvider.GetODataDeserializer(objectType, Request),
getODataDeserializerContext,
(disposable) => Request.RegisterForDispose(disposable),
logErrorAction)));
}
catch (Exception ex)
{
return(TaskHelpers.FromError <object>(ex));
}
}