internal static IODataResponseMessage PrepareResponseMessage(IWebApiRequestMessage internalRequest, IWebApiHeaders internalRequestHeaders, Func <IServiceProvider, ODataMessageWrapper> getODataMessageWrapper)
{
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(internalRequestHeaders);
string annotationFilter = null;
string omitValues = null;
int? maxPageSize = null;
if (!String.IsNullOrEmpty(preferHeader))
{
ODataMessageWrapper messageWrapper = getODataMessageWrapper(null);
messageWrapper.SetHeader(RequestPreferenceHelpers.PreferHeaderName, preferHeader);
annotationFilter = messageWrapper.PreferHeader().AnnotationFilter;
omitValues = messageWrapper.PreferHeader().OmitValues;
maxPageSize = messageWrapper.PreferHeader().MaxPageSize;
}
IODataResponseMessage responseMessage = getODataMessageWrapper(internalRequest.RequestContainer);
if (annotationFilter != null)
{
responseMessage.PreferenceAppliedHeader().AnnotationFilter = annotationFilter;
}
if (omitValues != null)
{
responseMessage.PreferenceAppliedHeader().OmitValues = omitValues;
}
if (maxPageSize != null)
{
responseMessage.PreferenceAppliedHeader().MaxPageSize = maxPageSize;
}
return(responseMessage);
}
private static object ConvertResourceOrResourceSet(object oDataValue, IEdmTypeReference edmTypeReference,
ODataDeserializerContext readContext)
{
string valueString = oDataValue as string;
Contract.Assert(valueString != null);
if (edmTypeReference.IsNullable && String.Equals(valueString, "null", StringComparison.Ordinal))
{
return(null);
}
IWebApiRequestMessage request = readContext.InternalRequest;
ODataMessageReaderSettings oDataReaderSettings = request.ReaderSettings;
using (MemoryStream stream = new MemoryStream(Encoding.UTF8.GetBytes(valueString)))
{
stream.Seek(0, SeekOrigin.Begin);
IODataRequestMessage oDataRequestMessage = new ODataMessageWrapper(stream, null,
request.ODataContentIdMapping);
using (
ODataMessageReader oDataMessageReader = new ODataMessageReader(oDataRequestMessage,
oDataReaderSettings, readContext.Model))
{
if (edmTypeReference.IsCollection())
{
return(ConvertResourceSet(oDataMessageReader, edmTypeReference, readContext));
}
else
{
return(ConvertResource(oDataMessageReader, edmTypeReference, readContext));
}
}
}
}
internal static void WriteToStream(
Type type,
object value,
IEdmModel model,
ODataVersion version,
Uri baseAddress,
MediaTypeHeaderValue contentType,
IWebApiUrlHelper internaUrlHelper,
IWebApiRequestMessage internalRequest,
IWebApiHeaders internalRequestHeaders,
Func <IServiceProvider, ODataMessageWrapper> getODataMessageWrapper,
Func <IEdmTypeReference, ODataSerializer> getEdmTypeSerializer,
Func <Type, ODataSerializer> getODataPayloadSerializer,
Func <ODataSerializerContext> getODataSerializerContext)
{
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
ODataSerializer serializer = GetSerializer(type, value, internalRequest, getEdmTypeSerializer, getODataPayloadSerializer);
ODataPath path = internalRequest.Context.Path;
IEdmNavigationSource targetNavigationSource = path == null ? null : path.NavigationSource;
// serialize a response
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(internalRequestHeaders);
string annotationFilter = null;
if (!String.IsNullOrEmpty(preferHeader))
{
ODataMessageWrapper messageWrapper = getODataMessageWrapper(null);
messageWrapper.SetHeader(RequestPreferenceHelpers.PreferHeaderName, preferHeader);
annotationFilter = messageWrapper.PreferHeader().AnnotationFilter;
}
IODataResponseMessage responseMessage = getODataMessageWrapper(internalRequest.RequestContainer);
if (annotationFilter != null)
{
responseMessage.PreferenceAppliedHeader().AnnotationFilter = annotationFilter;
}
ODataMessageWriterSettings writerSettings = internalRequest.WriterSettings;
writerSettings.BaseUri = baseAddress;
writerSettings.Version = version;
writerSettings.Validations = writerSettings.Validations & ~ValidationKinds.ThrowOnUndeclaredPropertyForNonOpenType;
string metadataLink = internaUrlHelper.CreateODataLink(MetadataSegment.Instance);
if (metadataLink == null)
{
throw new SerializationException(SRResources.UnableToDetermineMetadataUrl);
}
//Set this variable if the SelectExpandClause is different from the processed clause on the Query options
SelectExpandClause selectExpandDifferentFromQueryOptions = null;
if (internalRequest.Context.QueryOptions != null && internalRequest.Context.QueryOptions.SelectExpand != null)
{
if (internalRequest.Context.QueryOptions.SelectExpand.ProcessedSelectExpandClause != internalRequest.Context.ProcessedSelectExpandClause)
{
selectExpandDifferentFromQueryOptions = internalRequest.Context.ProcessedSelectExpandClause;
}
}
else if (internalRequest.Context.ProcessedSelectExpandClause != null)
{
selectExpandDifferentFromQueryOptions = internalRequest.Context.ProcessedSelectExpandClause;
}
writerSettings.ODataUri = new ODataUri
{
ServiceRoot = baseAddress,
SelectAndExpand = internalRequest.Context.ProcessedSelectExpandClause,
Apply = internalRequest.Context.ApplyClause,
Path = ConvertPath(path),
};
ODataMetadataLevel metadataLevel = ODataMetadataLevel.MinimalMetadata;
if (contentType != null)
{
IEnumerable <KeyValuePair <string, string> > parameters =
contentType.Parameters.Select(val => new KeyValuePair <string, string>(val.Name, val.Value));
metadataLevel = ODataMediaTypes.GetMetadataLevel(contentType.MediaType, parameters);
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, model))
{
ODataSerializerContext writeContext = getODataSerializerContext();
writeContext.NavigationSource = targetNavigationSource;
writeContext.Model = model;
writeContext.RootElementName = GetRootElementName(path) ?? "root";
writeContext.SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.ResourceSet;
writeContext.Path = path;
writeContext.MetadataLevel = metadataLevel;
writeContext.QueryOptions = internalRequest.Context.QueryOptions;
//Set the SelectExpandClause on the context if it was explicitly specified.
if (selectExpandDifferentFromQueryOptions != null)
{
writeContext.SelectExpandClause = selectExpandDifferentFromQueryOptions;
}
serializer.WriteObject(value, type, messageWriter, writeContext);
}
}
private void WriteResponseBody(OutputFormatterContext context)
{
HttpRequest request = context.ActionContext.HttpContext.Request;
HttpResponse response = context.ActionContext.HttpContext.Response;
IEdmModel model = request.ODataProperties().Model;
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
object value = context.Object;
Type type = value.GetType();
ODataSerializer serializer = GetSerializer(type, value, model, new DefaultODataSerializerProvider(), request);
IUrlHelper urlHelper = context.ActionContext.HttpContext.UrlHelper();
ODataPath path = request.ODataProperties().Path;
IEdmNavigationSource targetNavigationSource = path == null ? null : path.NavigationSource;
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(request);
string annotationFilter = null;
if (!String.IsNullOrEmpty(preferHeader))
{
ODataMessageWrapper messageWrapper = new ODataMessageWrapper(response.Body, response.Headers);
messageWrapper.SetHeader(RequestPreferenceHelpers.PreferHeaderName, preferHeader);
annotationFilter = messageWrapper.PreferHeader().AnnotationFilter;
}
IODataResponseMessage responseMessage = new ODataMessageWrapper(response.Body, response.Headers);
if (annotationFilter != null)
{
responseMessage.PreferenceAppliedHeader().AnnotationFilter = annotationFilter;
}
Uri baseAddress = GetBaseAddress(request);
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings(_messageWriterSettings)
{
PayloadBaseUri = baseAddress,
Version = ODataProperties.DefaultODataVersion,
};
string metadataLink = urlHelper.CreateODataLink(new MetadataPathSegment());
if (metadataLink == null)
{
throw new SerializationException(SRResources.UnableToDetermineMetadataUrl);
}
writerSettings.ODataUri = new ODataUri
{
ServiceRoot = baseAddress,
// TODO: 1604 Convert webapi.odata's ODataPath to ODL's ODataPath, or use ODL's ODataPath.
SelectAndExpand = request.ODataProperties().SelectExpandClause,
Path = (path == null || IsOperationPath(path)) ? null : path.ODLPath,
};
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, model))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
Request = request,
RequestContext = request.HttpContext,
Url = urlHelper,
NavigationSource = targetNavigationSource,
Model = model,
RootElementName = GetRootElementName(path) ?? "root",
SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.Feed,
Path = path,
MetadataLevel = ODataMediaTypes.GetMetadataLevel(context.SelectedContentType),
SelectExpandClause = request.ODataProperties().SelectExpandClause
};
serializer.WriteObject(value, type, messageWriter, writeContext);
}
}
private void WriteResponseBody(OutputFormatterContext context)
{
HttpRequest request = context.HttpContext.Request;
HttpResponse response = context.HttpContext.Response;
IEdmModel model = request.ODataProperties().Model;
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
object value = context.Object;
Type type = value.GetType();
ODataSerializer serializer = GetSerializer(type, value, model, new DefaultODataSerializerProvider(), request);
IUrlHelper urlHelper = context.HttpContext.UrlHelper();
ODataPath path = request.ODataProperties().Path;
IEdmNavigationSource targetNavigationSource = path == null ? null : path.NavigationSource;
string preferHeader = RequestPreferenceHelpers.GetRequestPreferHeader(request);
string annotationFilter = null;
if (!String.IsNullOrEmpty(preferHeader))
{
ODataMessageWrapper messageWrapper = new ODataMessageWrapper(response.Body, response.Headers);
messageWrapper.SetHeader(RequestPreferenceHelpers.PreferHeaderName, preferHeader);
annotationFilter = messageWrapper.PreferHeader().AnnotationFilter;
}
IODataResponseMessage responseMessage = new ODataMessageWrapper(response.Body, response.Headers);
if (annotationFilter != null)
{
responseMessage.PreferenceAppliedHeader().AnnotationFilter = annotationFilter;
}
Uri baseAddress = GetBaseAddress(request);
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings(_messageWriterSettings)
{
PayloadBaseUri = baseAddress,
Version = ODataProperties.DefaultODataVersion,
};
string metadataLink = urlHelper.CreateODataLink(new MetadataPathSegment());
if (metadataLink == null)
{
throw new SerializationException(SRResources.UnableToDetermineMetadataUrl);
}
writerSettings.ODataUri = new ODataUri
{
ServiceRoot = baseAddress,
// TODO: 1604 Convert webapi.odata's ODataPath to ODL's ODataPath, or use ODL's ODataPath.
SelectAndExpand = request.ODataProperties().SelectExpandClause,
Path = (path == null || IsOperationPath(path)) ? null : path.ODLPath,
};
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, model))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
Request = request,
RequestContext = request.HttpContext,
Url = urlHelper,
NavigationSource = targetNavigationSource,
Model = model,
RootElementName = GetRootElementName(path) ?? "root",
SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.Feed,
Path = path,
MetadataLevel = ODataMediaTypes.GetMetadataLevel(context.SelectedContentType),
SelectExpandClause = request.ODataProperties().SelectExpandClause
};
serializer.WriteObject(value, type, messageWriter, writeContext);
}
}