public void ResolveUrl_ThrowsArgumentNull_PayloadUri()
{
var message = new ODataMessageWrapper();
Assert.ThrowsArgumentNull(
() => message.ResolveUrl(new Uri("http://localhost"), null),
"payloadUri");
}
public void WriteMessageAsync_WritesResponseMessage()
{
MemoryStream ms = new MemoryStream();
HttpContent content = new StringContent(String.Empty, Encoding.UTF8, "multipart/mixed");
content.Headers.ContentType.Parameters.Add(new NameValueHeaderValue("boundary", Guid.NewGuid().ToString()));
IODataResponseMessage odataResponse = new ODataMessageWrapper(ms, content.Headers);
var batchWriter = new ODataMessageWriter(odataResponse).CreateODataBatchWriter();
HttpResponseMessage response = new HttpResponseMessage()
{
Content = new StringContent("example content", Encoding.UTF8, "text/example")
};
response.Headers.Add("customHeader", "bar");
batchWriter.WriteStartBatch();
ODataBatchResponseItem.WriteMessageAsync(batchWriter, response).Wait();
batchWriter.WriteEndBatch();
ms.Position = 0;
string result = new StreamReader(ms).ReadToEnd();
Assert.Contains("example content", result);
Assert.Contains("text/example", result);
Assert.Contains("customHeader", result);
Assert.Contains("bar", result);
}
public void ResolveUrl_ReturnsNull_IfNoContentIdInUri()
{
var message = new ODataMessageWrapper();
Uri uri = message.ResolveUrl(new Uri("http://localhost"), new Uri("/values", UriKind.Relative));
Assert.Null(uri);
}
public void ResolveUrl_ThrowsArgumentNull_PayloadUri()
{
var message = new ODataMessageWrapper();
Assert.ThrowsArgumentNull(
() => message.ResolveUrl(new Uri("http://localhost"), null),
"payloadUri");
}
public void ResolveUrl_ReturnsNull_IfNoContentIdInUri()
{
var message = new ODataMessageWrapper();
Uri uri = message.ResolveUrl(new Uri("http://localhost"), new Uri("/values", UriKind.Relative));
Assert.Null(uri);
}
public void ResolveUrl_ReturnsOriginalUri_IfContentIdCannotBeResolved()
{
StringContent content = new StringContent(String.Empty);
var message = new ODataMessageWrapper(new MemoryStream(), content.Headers);
Uri uri = message.ResolveUrl(new Uri("http://localhost"), new Uri("$1", UriKind.Relative));
Assert.Equal("$1", uri.OriginalString);
}
public void ResolveUrl_ReturnsOriginalUri_IfContentIdCannotBeResolved()
{
StringContent content = new StringContent(String.Empty);
var message = new ODataMessageWrapper(new MemoryStream(), content.Headers);
Uri uri = message.ResolveUrl(new Uri("http://localhost"), new Uri("$1", UriKind.Relative));
Assert.Equal("$1", uri.OriginalString);
}
/// <inheritdoc/>
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");
}
object result = null;
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
// If content length is 0 then return default value for this type
if (contentHeaders != null && contentHeaders.ContentLength == 0)
{
result = GetDefaultValueForType(type);
}
else
{
bool isPatchMode = TryGetInnerTypeForDelta(ref type);
ODataDeserializer deserializer = ODataDeserializerProvider.GetODataDeserializer(type);
if (deserializer == null)
{
throw Error.Argument("type", SRResources.FormatterReadIsNotSupportedForType, type.FullName, GetType().FullName);
}
ODataMessageReader oDataMessageReader = null;
ODataMessageReaderSettings oDataReaderSettings = new ODataMessageReaderSettings {
DisableMessageStreamDisposal = true
};
try
{
IODataRequestMessage oDataRequestMessage = new ODataMessageWrapper(readStream, contentHeaders);
oDataMessageReader = new ODataMessageReader(oDataRequestMessage, oDataReaderSettings, ODataDeserializerProvider.EdmModel);
ODataDeserializerContext readContext = new ODataDeserializerContext {
IsPatchMode = isPatchMode, PatchKeyMode = PatchKeyMode
};
result = deserializer.Read(oDataMessageReader, readContext);
}
finally
{
if (oDataMessageReader != null)
{
oDataMessageReader.Dispose();
}
}
}
return(TaskHelpers.FromResult(result));
}
public void WriteMessageAsync_NullResponse_Throws()
{
HttpContent content = new StringContent(String.Empty, Encoding.UTF8, "multipart/mixed");
content.Headers.ContentType.Parameters.Add(new NameValueHeaderValue("boundary", Guid.NewGuid().ToString()));
IODataResponseMessage odataResponse = new ODataMessageWrapper(new MemoryStream(), content.Headers);
ODataMessageWriter messageWriter = new ODataMessageWriter(odataResponse);
Assert.ThrowsArgumentNull(
() => ODataBatchResponseItem.WriteMessageAsync(messageWriter.CreateODataBatchWriter(), null).Wait(),
"response");
}
/// <summary>
/// Gets the <see cref="ODataMessageReader"/> for the <see cref="HttpContent"/> stream.
/// </summary>
/// <param name="content">The <see cref="HttpContent"/>.</param>
/// <param name="settings">The <see cref="ODataMessageReaderSettings"/>.</param>
/// <returns>A <see cref="ODataMessageReader"/>.</returns>
public static async Task<ODataMessageReader> GetODataMessageReaderAsync(this HttpContent content, ODataMessageReaderSettings settings)
{
if (content == null)
{
throw Error.ArgumentNull("content");
}
Stream contentStream = await content.ReadAsStreamAsync();
IODataRequestMessage oDataRequestMessage = new ODataMessageWrapper(contentStream, content.Headers);
ODataMessageReader oDataMessageReader = new ODataMessageReader(oDataRequestMessage, settings);
return oDataMessageReader;
}
public void ResolveUrl_ResolvesUriWithContentId()
{
StringContent content = new StringContent(String.Empty);
Dictionary<string, string> contentIdMapping = new Dictionary<string, string>
{
{"1", "http://localhost/values(1)"},
{"11", "http://localhost/values(11)"},
};
var message = new ODataMessageWrapper(new MemoryStream(), content.Headers, contentIdMapping);
Uri uri = message.ResolveUrl(new Uri("http://localhost"), new Uri("$1", UriKind.Relative));
Assert.Equal("http://localhost/values(1)", uri.OriginalString);
}
public void ResolveUrl_ResolvesUriWithContentId()
{
StringContent content = new StringContent(String.Empty);
Dictionary <string, string> contentIdMapping = new Dictionary <string, string>
{
{ "1", "http://localhost/values(1)" },
{ "11", "http://localhost/values(11)" },
};
var message = new ODataMessageWrapper(new MemoryStream(), content.Headers, contentIdMapping);
Uri uri = message.ResolveUrl(new Uri("http://localhost"), new Uri("$1", UriKind.Relative));
Assert.Equal("http://localhost/values(1)", uri.OriginalString);
}
/// <inheritdoc/>
protected override async Task SerializeToStreamAsync(Stream stream, TransportContext context)
{
IODataResponseMessage responseMessage = new ODataMessageWrapper(stream, Headers);
ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, _writerSettings);
ODataBatchWriter writer = messageWriter.CreateODataBatchWriter();
writer.WriteStartBatch();
foreach (ODataBatchResponseItem response in Responses)
{
await response.WriteResponseAsync(writer, CancellationToken.None);
}
writer.WriteEndBatch();
}
public void WriteResponseAsync_WritesOperation()
{
OperationResponseItem responseItem = new OperationResponseItem(new HttpResponseMessage(HttpStatusCode.Accepted));
MemoryStream memoryStream = new MemoryStream();
IODataResponseMessage responseMessage = new ODataMessageWrapper(memoryStream);
ODataMessageWriter writer = new ODataMessageWriter(responseMessage);
ODataBatchWriter batchWriter = writer.CreateODataBatchWriter();
batchWriter.WriteStartBatch();
responseItem.WriteResponseAsync(batchWriter, CancellationToken.None).Wait();
batchWriter.WriteEndBatch();
memoryStream.Position = 0;
string responseString = new StreamReader(memoryStream).ReadToEnd();
Assert.Contains("Accepted", responseString);
}
public void Posting_NonDerivedType_To_Action_Expecting_BaseType_Throws()
{
StringContent content = new StringContent("{ '__metadata' : { 'type' : 'System.Web.Http.OData.Builder.TestModels.Motorcycle' } }");
content.Headers.ContentType = MediaTypeHeaderValue.Parse("application/json;odata=verbose");
IODataRequestMessage oDataRequest = new ODataMessageWrapper(content.ReadAsStreamAsync().Result, content.Headers);
ODataMessageReader reader = new ODataMessageReader(oDataRequest, new ODataMessageReaderSettings(), _model);
ODataDeserializerProvider deserializerProvider = new DefaultODataDeserializerProvider();
ODataDeserializerContext context = new ODataDeserializerContext {
Model = _model
};
context.Path = new ODataPath(new ActionPathSegment(_model.EntityContainers().Single().FunctionImports().Single(f => f.Name == "PostMotorcycle_When_Expecting_Car")));
Assert.Throws <ODataException>(
() => new ODataEntityDeserializer(deserializerProvider).Read(reader, typeof(Car), context),
"An entry with type 'System.Web.Http.OData.Builder.TestModels.Motorcycle' was found, " +
"but it is not assignable to the expected type 'System.Web.Http.OData.Builder.TestModels.Car'. " +
"The type specified in the entry must be equal to either the expected type or a derived type.");
}
private IEnumerable <KeyValuePair <string, string> > GetResponseMessageHeaders(Type graphType, ODataFormat odataFormat, ODataVersion version)
{
IODataResponseMessage responseMessage = new ODataMessageWrapper();
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings()
{
BaseUri = new Uri(ODataFormatterConstants.DefaultNamespace),
Version = version,
Indent = false
};
writerSettings.SetContentType(odataFormat);
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings))
{
ODataSerializer serializer = ODataSerializerProvider.GetODataPayloadSerializer(graphType);
// get the OData specific headers for the payloadkind
ODataUtils.SetHeadersForPayload(messageWriter, serializer.ODataPayloadKind);
}
return(responseMessage.Headers);
}
public void WriteResponseAsync_WritesChangeSet()
{
HttpResponseMessage[] responses = new HttpResponseMessage[]
{
new HttpResponseMessage(HttpStatusCode.Accepted),
new HttpResponseMessage(HttpStatusCode.NoContent)
};
ChangeSetResponseItem responseItem = new ChangeSetResponseItem(responses);
MemoryStream memoryStream = new MemoryStream();
IODataResponseMessage responseMessage = new ODataMessageWrapper(memoryStream);
ODataMessageWriter writer = new ODataMessageWriter(responseMessage);
ODataBatchWriter batchWriter = writer.CreateODataBatchWriter();
batchWriter.WriteStartBatch();
responseItem.WriteResponseAsync(batchWriter).Wait();
batchWriter.WriteEndBatch();
memoryStream.Position = 0;
string responseString = new StreamReader(memoryStream).ReadToEnd();
Assert.Contains("changesetresponse", responseString);
Assert.Contains("Accepted", responseString);
Assert.Contains("No Content", responseString);
}
public void Posting_NonDerivedType_To_Action_Expecting_BaseType_Throws()
{
StringContent content = new StringContent("{ '__metadata' : { 'type' : 'System.Web.Http.OData.Builder.TestModels.Motorcycle' } }");
content.Headers.ContentType = MediaTypeHeaderValue.Parse("application/json;odata=verbose");
IODataRequestMessage oDataRequest = new ODataMessageWrapper(content.ReadAsStreamAsync().Result, content.Headers);
ODataMessageReader reader = new ODataMessageReader(oDataRequest, new ODataMessageReaderSettings(), _model);
ODataDeserializerProvider deserializerProvider = new DefaultODataDeserializerProvider();
ODataDeserializerContext context = new ODataDeserializerContext { Model = _model };
context.Path = new ODataPath(new ActionPathSegment(_model.EntityContainers().Single().FunctionImports().Single(f => f.Name == "PostMotorcycle_When_Expecting_Car")));
Assert.Throws<ODataException>(
() => new ODataEntityDeserializer(deserializerProvider).Read(reader, typeof(Car), context),
"An entry with type 'System.Web.Http.OData.Builder.TestModels.Motorcycle' was found, " +
"but it is not assignable to the expected type 'System.Web.Http.OData.Builder.TestModels.Car'. " +
"The type specified in the entry must be equal to either the expected type or a derived type.");
}
private void WriteToStream(Type type, object value, Stream writeStream, HttpContent content, HttpContentHeaders contentHeaders)
{
IEdmModel model = Request.GetEdmModel();
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
ODataSerializer serializer = GetSerializer(type, value, model, _serializerProvider);
UrlHelper urlHelper = Request.GetUrlHelper();
Contract.Assert(urlHelper != null);
ODataPath path = Request.GetODataPath();
IEdmEntitySet targetEntitySet = path == null ? null : path.EntitySet;
// serialize a response
HttpConfiguration configuration = Request.GetConfiguration();
if (configuration == null)
{
throw Error.InvalidOperation(SRResources.RequestMustContainConfiguration);
}
IODataResponseMessage responseMessage = new ODataMessageWrapper(writeStream, content.Headers);
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings(MessageWriterSettings)
{
BaseUri = GetBaseAddress(Request),
Version = _version,
};
// The MetadataDocumentUri is never required for errors. Additionally, it sometimes won't be available
// for errors, such as when routing itself fails. In that case, the route data property is not
// available on the request, and due to a bug with HttpRoute.GetVirtualPath (bug #669) we won't be able
// to generate a metadata link.
if (serializer.ODataPayloadKind != ODataPayloadKind.Error)
{
string metadataLink = urlHelper.ODataLink(new MetadataPathSegment());
if (metadataLink == null)
{
throw new SerializationException(SRResources.UnableToDetermineMetadataUrl);
}
string selectClause = GetSelectClause(Request);
writerSettings.SetMetadataDocumentUri(new Uri(metadataLink), selectClause);
}
MediaTypeHeaderValue contentType = null;
if (contentHeaders != null && contentHeaders.ContentType != null)
{
contentType = contentHeaders.ContentType;
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, model))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
Request = Request,
RequestContext = Request.GetRequestContext(),
Url = urlHelper,
EntitySet = targetEntitySet,
Model = model,
RootElementName = GetRootElementName(path) ?? "root",
SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.Feed,
Path = path,
MetadataLevel = ODataMediaTypes.GetMetadataLevel(contentType),
SelectExpandClause = Request.GetSelectExpandClause()
};
serializer.WriteObject(value, type, messageWriter, writeContext);
}
}
private object ReadFromStream(Type type, Stream readStream, HttpContent content, IFormatterLogger formatterLogger)
{
object result;
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
// If content length is 0 then return default value for this type
if (contentHeaders == null || contentHeaders.ContentLength == 0)
{
result = GetDefaultValueForType(type);
}
else
{
IEdmModel model = Request.GetEdmModel();
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
IEdmTypeReference expectedPayloadType;
ODataDeserializer deserializer = GetDeserializer(type, Request.GetODataPath(), model, _deserializerProvider, out expectedPayloadType);
if (deserializer == null)
{
throw Error.Argument("type", SRResources.FormatterReadIsNotSupportedForType, type.FullName, GetType().FullName);
}
try
{
ODataMessageReaderSettings oDataReaderSettings = new ODataMessageReaderSettings(MessageReaderSettings);
oDataReaderSettings.BaseUri = GetBaseAddress(Request);
IODataRequestMessage oDataRequestMessage = new ODataMessageWrapper(readStream, contentHeaders, Request.GetODataContentIdMapping());
ODataMessageReader oDataMessageReader = new ODataMessageReader(oDataRequestMessage, oDataReaderSettings, model);
Request.RegisterForDispose(oDataMessageReader);
ODataPath path = Request.GetODataPath();
ODataDeserializerContext readContext = new ODataDeserializerContext
{
Path = path,
Model = model,
Request = Request,
ResourceType = type,
ResourceEdmType = expectedPayloadType,
RequestContext = Request.GetRequestContext(),
};
result = deserializer.Read(oDataMessageReader, type, readContext);
}
catch (Exception e)
{
if (formatterLogger == null)
{
throw;
}
formatterLogger.LogError(String.Empty, e);
result = GetDefaultValueForType(type);
}
}
return result;
}
public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
{
if (type == null)
{
throw Error.ArgumentNull("type");
}
if (writeStream == null)
{
throw Error.ArgumentNull("writeStream");
}
if (Request == null)
{
throw Error.NotSupported(SRResources.WriteToStreamAsyncMustHaveRequest);
}
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
return TaskHelpers.RunSynchronously(() =>
{
// Get the format and version to use from the ODataServiceVersion content header or if not available use the
// values configured for the specialized formatter instance.
ODataVersion version;
if (contentHeaders == null)
{
version = _defaultODataVersion;
}
else
{
version = GetODataVersion(contentHeaders, ODataFormatterConstants.ODataServiceVersion) ?? _defaultODataVersion;
}
// get the most appropriate serializer given that we support inheritance.
type = value == null ? type : value.GetType();
ODataSerializer serializer = ODataSerializerProvider.GetODataPayloadSerializer(type);
if (serializer == null)
{
throw Error.InvalidOperation(SRResources.TypeCannotBeSerialized, type.Name, typeof(ODataMediaTypeFormatter).Name);
}
UrlHelper urlHelper = Request.GetUrlHelper();
IEdmEntitySet targetEntitySet = null;
ODataUriHelpers.TryGetEntitySetAndEntityType(Request.RequestUri, Model, out targetEntitySet);
// serialize a response
Uri baseAddress = new Uri(Request.RequestUri, Request.GetConfiguration().VirtualPathRoot);
// TODO: Bug 467617: figure out the story for the operation name on the client side and server side.
// This is clearly a workaround. We are assuming that the operation name is the last segment in the request uri
// which works for most cases and fall back to the type name of the object being written.
// We should rather use uri parser semantic tree to figure out the operation name from the request url.
string operationName = ODataUriHelpers.GetOperationName(Request.RequestUri, baseAddress);
operationName = operationName ?? type.Name;
IODataResponseMessage responseMessage = new ODataMessageWrapper(writeStream);
// TODO: Issue 483: http://aspnetwebstack.codeplex.com/workitem/483
// We need to set the MetadataDocumentUri when this property is added to ODataMessageWriterSettings as
// part of the JSON Light work.
// This is required so ODataLib can coerce AbsoluteUri's into RelativeUri's when appropriate in JSON Light.
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings()
{
BaseUri = baseAddress,
Version = version,
Indent = true,
DisableMessageStreamDisposal = true
};
if (contentHeaders != null && contentHeaders.ContentType != null)
{
writerSettings.SetContentType(contentHeaders.ContentType.ToString(), Encoding.UTF8.WebName);
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, ODataDeserializerProvider.EdmModel))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
EntitySet = targetEntitySet,
UrlHelper = urlHelper,
ServiceOperationName = operationName,
SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.Feed,
Request = Request
};
serializer.WriteObject(value, messageWriter, writeContext);
}
});
}
public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
{
if (type == null)
{
throw Error.ArgumentNull("type");
}
if (writeStream == null)
{
throw Error.ArgumentNull("writeStream");
}
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
return(TaskHelpers.RunSynchronously(() =>
{
// Get the format and version to use from the ODataServiceVersion content header or if not available use the
// values configured for the specialized formatter instance.
ODataVersion version;
ODataFormat odataFormat;
if (contentHeaders == null)
{
version = _defaultODataVersion;
odataFormat = ODataFormatterConstants.DefaultODataFormat;
}
else
{
version = GetODataVersion(contentHeaders, ODataFormatterConstants.ODataServiceVersion) ?? _defaultODataVersion;
odataFormat = GetODataFormat(contentHeaders);
}
ODataSerializer serializer = ODataSerializerProvider.GetODataPayloadSerializer(type);
if (serializer == null)
{
throw Error.InvalidOperation(SRResources.TypeCannotBeSerialized, type.Name, typeof(ODataMediaTypeFormatter).Name);
}
if (IsClient)
{
// TODO: Bug 467617: figure out the story for the operation name on the client side and server side.
string operationName = (value != null ? value.GetType() : type).Name;
// serialize a request
IODataRequestMessage requestMessage = new ODataMessageWrapper(writeStream);
ODataResponseContext responseContext = new ODataResponseContext(requestMessage, odataFormat, version, new Uri(ODataFormatterConstants.DefaultNamespace), operationName);
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings()
{
BaseUri = responseContext.BaseAddress,
Version = responseContext.ODataVersion,
Indent = responseContext.IsIndented,
DisableMessageStreamDisposal = true,
};
writerSettings.SetContentType(responseContext.ODataFormat);
using (ODataMessageWriter messageWriter = new ODataMessageWriter(requestMessage, writerSettings, Model))
{
ODataSerializerWriteContext writeContext = new ODataSerializerWriteContext(responseContext);
serializer.WriteObject(value, messageWriter, writeContext);
}
}
else
{
UrlHelper urlHelper = Request.GetUrlHelper();
NameValueCollection queryStringValues = Request.RequestUri.ParseQueryString();
IEdmEntitySet targetEntitySet = null;
ODataUriHelpers.TryGetEntitySetAndEntityType(Request.RequestUri, Model, out targetEntitySet);
ODataQueryProjectionNode rootProjectionNode = null;
if (targetEntitySet != null)
{
// TODO: Bug 467621: Move to ODataUriParser once it is done.
rootProjectionNode = ODataUriHelpers.GetODataQueryProjectionNode(queryStringValues["$select"], queryStringValues["$expand"], targetEntitySet);
}
// serialize a response
Uri baseAddress = new Uri(Request.RequestUri, Request.GetConfiguration().VirtualPathRoot);
// TODO: Bug 467617: figure out the story for the operation name on the client side and server side.
// This is clearly a workaround. We are assuming that the operation name is the last segment in the request uri
// which works for most cases and fall back to the type name of the object being written.
// We should rather use uri parser semantic tree to figure out the operation name from the request url.
string operationName = ODataUriHelpers.GetOperationName(Request.RequestUri, baseAddress);
operationName = operationName ?? type.Name;
IODataResponseMessage responseMessage = new ODataMessageWrapper(writeStream);
ODataResponseContext responseContext = new ODataResponseContext(responseMessage, odataFormat, version, baseAddress, operationName);
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings()
{
BaseUri = responseContext.BaseAddress,
Version = responseContext.ODataVersion,
Indent = responseContext.IsIndented,
DisableMessageStreamDisposal = true,
};
if (contentHeaders != null && contentHeaders.ContentType != null)
{
writerSettings.SetContentType(contentHeaders.ContentType.ToString(), Encoding.UTF8.WebName);
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, ODataDeserializerProvider.EdmModel))
{
ODataSerializerWriteContext writeContext = new ODataSerializerWriteContext(responseContext)
{
EntitySet = targetEntitySet,
UrlHelper = urlHelper,
RootProjectionNode = rootProjectionNode,
CurrentProjectionNode = rootProjectionNode
};
serializer.WriteObject(value, messageWriter, writeContext);
}
}
}));
}
public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
{
if (type == null)
{
throw Error.ArgumentNull("type");
}
if (writeStream == null)
{
throw Error.ArgumentNull("writeStream");
}
if (_request == null)
{
throw Error.InvalidOperation(SRResources.WriteToStreamAsyncMustHaveRequest);
}
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
return(TaskHelpers.RunSynchronously(() =>
{
// get the most appropriate serializer given that we support inheritance.
IEdmModel model = _request.GetEdmModel();
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
type = value == null ? type : value.GetType();
ODataSerializer serializer = _serializerProvider.GetODataPayloadSerializer(model, type);
if (serializer == null)
{
string message = Error.Format(SRResources.TypeCannotBeSerialized, type.Name, typeof(ODataMediaTypeFormatter).Name);
throw new SerializationException(message);
}
UrlHelper urlHelper = _request.GetUrlHelper();
Contract.Assert(urlHelper != null);
ODataPath path = _request.GetODataPath();
IEdmEntitySet targetEntitySet = path == null ? null : path.EntitySet;
// serialize a response
HttpConfiguration configuration = _request.GetConfiguration();
if (configuration == null)
{
throw Error.InvalidOperation(SRResources.RequestMustContainConfiguration);
}
IODataResponseMessage responseMessage = new ODataMessageWrapper(writeStream, content.Headers);
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings()
{
BaseUri = GetBaseAddress(_request),
Version = _version,
Indent = true,
DisableMessageStreamDisposal = true,
MessageQuotas = MessageWriterQuotas
};
// The MetadataDocumentUri is never required for errors. Additionally, it sometimes won't be available
// for errors, such as when routing itself fails. In that case, the route data property is not
// available on the request, and due to a bug with HttpRoute.GetVirtualPath (bug #669) we won't be able
// to generate a metadata link.
if (serializer.ODataPayloadKind != ODataPayloadKind.Error)
{
string metadataLink = urlHelper.ODataLink(new MetadataPathSegment());
if (metadataLink == null)
{
throw new SerializationException(SRResources.UnableToDetermineMetadataUrl);
}
writerSettings.SetMetadataDocumentUri(new Uri(metadataLink));
}
MediaTypeHeaderValue contentType = null;
if (contentHeaders != null && contentHeaders.ContentType != null)
{
contentType = contentHeaders.ContentType;
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, model))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
Request = _request,
Url = urlHelper,
EntitySet = targetEntitySet,
Model = model,
RootElementName = GetRootElementName(path) ?? "root",
SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.Feed,
Path = path,
MetadataLevel = ODataMediaTypes.GetMetadataLevel(contentType),
};
serializer.WriteObject(value, messageWriter, writeContext);
}
}));
}
private void WriteToStream(Type type, object value, Stream writeStream, HttpContent content, HttpContentHeaders contentHeaders)
{
IEdmModel model = Request.GetEdmModel();
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
ODataSerializer serializer = GetSerializer(type, value, model, _serializerProvider);
UrlHelper urlHelper = Request.GetUrlHelper();
Contract.Assert(urlHelper != null);
ODataPath path = Request.GetODataPath();
IEdmEntitySet targetEntitySet = path == null ? null : path.EntitySet;
// serialize a response
HttpConfiguration configuration = Request.GetConfiguration();
if (configuration == null)
{
throw Error.InvalidOperation(SRResources.RequestMustContainConfiguration);
}
IODataResponseMessage responseMessage = new ODataMessageWrapper(writeStream, content.Headers);
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings(MessageWriterSettings)
{
BaseUri = GetBaseAddress(Request),
Version = _version,
};
// The MetadataDocumentUri is never required for errors. Additionally, it sometimes won't be available
// for errors, such as when routing itself fails. In that case, the route data property is not
// available on the request, and due to a bug with HttpRoute.GetVirtualPath (bug #669) we won't be able
// to generate a metadata link.
if (serializer.ODataPayloadKind != ODataPayloadKind.Error)
{
string metadataLink = urlHelper.ODataLink(new MetadataPathSegment());
if (metadataLink == null)
{
throw new SerializationException(SRResources.UnableToDetermineMetadataUrl);
}
string selectClause = GetSelectClause(Request);
writerSettings.SetMetadataDocumentUri(new Uri(metadataLink), selectClause);
}
MediaTypeHeaderValue contentType = null;
if (contentHeaders != null && contentHeaders.ContentType != null)
{
contentType = contentHeaders.ContentType;
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, model))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
Request = Request,
RequestContext = Request.GetRequestContext(),
Url = urlHelper,
EntitySet = targetEntitySet,
Model = model,
RootElementName = GetRootElementName(path) ?? "root",
SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.Feed,
Path = path,
MetadataLevel = ODataMediaTypes.GetMetadataLevel(contentType),
SelectExpandClause = Request.GetSelectExpandClause()
};
serializer.WriteObject(value, type, messageWriter, writeContext);
}
}
private object ReadFromStream(Type type, Stream readStream, HttpContent content, IFormatterLogger formatterLogger)
{
object result;
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
// If content length is 0 then return default value for this type
if (contentHeaders == null || contentHeaders.ContentLength == 0)
{
result = GetDefaultValueForType(type);
}
else
{
IEdmModel model = Request.GetEdmModel();
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
IEdmTypeReference expectedPayloadType;
ODataDeserializer deserializer = GetDeserializer(type, Request.GetODataPath(), model, _deserializerProvider, out expectedPayloadType);
if (deserializer == null)
{
throw Error.Argument("type", SRResources.FormatterReadIsNotSupportedForType, type.FullName, GetType().FullName);
}
try
{
ODataMessageReaderSettings oDataReaderSettings = new ODataMessageReaderSettings(MessageReaderSettings);
oDataReaderSettings.BaseUri = GetBaseAddress(Request);
IODataRequestMessage oDataRequestMessage = new ODataMessageWrapper(readStream, contentHeaders, Request.GetODataContentIdMapping());
ODataMessageReader oDataMessageReader = new ODataMessageReader(oDataRequestMessage, oDataReaderSettings, model);
Request.RegisterForDispose(oDataMessageReader);
ODataPath path = Request.GetODataPath();
ODataDeserializerContext readContext = new ODataDeserializerContext
{
Path = path,
Model = model,
Request = Request,
ResourceType = type,
ResourceEdmType = expectedPayloadType,
RequestContext = Request.GetRequestContext(),
};
result = deserializer.Read(oDataMessageReader, type, readContext);
}
catch (Exception e)
{
if (formatterLogger == null)
{
throw;
}
formatterLogger.LogError(String.Empty, e);
result = GetDefaultValueForType(type);
}
}
return(result);
}
public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
{
if (type == null)
{
throw Error.ArgumentNull("type");
}
if (writeStream == null)
{
throw Error.ArgumentNull("writeStream");
}
if (_request == null)
{
throw Error.NotSupported(SRResources.WriteToStreamAsyncMustHaveRequest);
}
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
return TaskHelpers.RunSynchronously(() =>
{
// get the most appropriate serializer given that we support inheritance.
type = value == null ? type : value.GetType();
ODataSerializer serializer = _serializerProvider.GetODataPayloadSerializer(type);
if (serializer == null)
{
throw Error.InvalidOperation(SRResources.TypeCannotBeSerialized, type.Name, typeof(ODataMediaTypeFormatter).Name);
}
UrlHelper urlHelper = _request.GetUrlHelper();
ODataPath path = _request.GetODataPath();
IEdmEntitySet targetEntitySet = path == null ? null : path.EntitySet;
// serialize a response
HttpConfiguration configuration = _request.GetConfiguration();
Uri baseAddress = new Uri(_request.RequestUri, configuration.VirtualPathRoot);
IODataResponseMessage responseMessage = new ODataMessageWrapper(writeStream);
// TODO: Issue 483: http://aspnetwebstack.codeplex.com/workitem/483
// We need to set the MetadataDocumentUri when this property is added to ODataMessageWriterSettings as
// part of the JSON Light work.
// This is required so ODataLib can coerce AbsoluteUri's into RelativeUri's when appropriate in JSON Light.
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings()
{
BaseUri = baseAddress,
Version = _version,
Indent = true,
DisableMessageStreamDisposal = true
};
if (contentHeaders != null && contentHeaders.ContentType != null)
{
MediaTypeHeaderValue contentType = contentHeaders.ContentType;
writerSettings.SetContentType(contentType.ToString(), contentType.CharSet);
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, _deserializerProvider.EdmModel))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
EntitySet = targetEntitySet,
UrlHelper = urlHelper,
PathHandler = configuration.GetODataPathHandler() ?? new DefaultODataPathHandler(Model),
RootElementName = GetRootElementName(path) ?? ElementNameDefault,
SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.Feed,
Request = _request
};
serializer.WriteObject(value, messageWriter, writeContext);
}
});
}
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);
}
return TaskHelpers.RunSynchronously<object>(() =>
{
object result;
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
// If content length is 0 then return default value for this type
if (contentHeaders == null || contentHeaders.ContentLength == 0)
{
result = GetDefaultValueForType(type);
}
else
{
IEdmModel model = _request.GetEdmModel();
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
Type originalType = type;
bool isPatchMode = TryGetInnerTypeForDelta(ref type);
ODataDeserializer deserializer = _deserializerProvider.GetODataDeserializer(model, type);
if (deserializer == null)
{
throw Error.Argument("type", SRResources.FormatterReadIsNotSupportedForType, type.FullName, GetType().FullName);
}
ODataMessageReader oDataMessageReader = null;
ODataMessageReaderSettings oDataReaderSettings = new ODataMessageReaderSettings
{
DisableMessageStreamDisposal = true,
MessageQuotas = MessageReaderQuotas,
BaseUri = GetBaseAddress(_request)
};
try
{
IODataRequestMessage oDataRequestMessage = new ODataMessageWrapper(readStream, contentHeaders);
oDataMessageReader = new ODataMessageReader(oDataRequestMessage, oDataReaderSettings, model);
_request.RegisterForDispose(oDataMessageReader);
ODataPath path = _request.GetODataPath();
ODataDeserializerContext readContext = new ODataDeserializerContext
{
IsPatchMode = isPatchMode,
Path = path,
Model = model,
Request = _request
};
if (isPatchMode)
{
readContext.PatchEntityType = originalType;
}
result = deserializer.Read(oDataMessageReader, readContext);
}
catch (Exception e)
{
if (formatterLogger == null)
{
throw;
}
formatterLogger.LogError(String.Empty, e);
result = GetDefaultValueForType(type);
}
}
return result;
});
}
public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
{
if (type == null)
{
throw Error.ArgumentNull("type");
}
if (writeStream == null)
{
throw Error.ArgumentNull("writeStream");
}
if (_request == null)
{
throw Error.NotSupported(SRResources.WriteToStreamAsyncMustHaveRequest);
}
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
return(TaskHelpers.RunSynchronously(() =>
{
// get the most appropriate serializer given that we support inheritance.
type = value == null ? type : value.GetType();
ODataSerializer serializer = _serializerProvider.GetODataPayloadSerializer(type);
if (serializer == null)
{
throw Error.InvalidOperation(SRResources.TypeCannotBeSerialized, type.Name, typeof(ODataMediaTypeFormatter).Name);
}
UrlHelper urlHelper = _request.GetUrlHelper();
ODataPath path = _request.GetODataPath();
IEdmEntitySet targetEntitySet = path == null ? null : path.EntitySet;
// serialize a response
HttpConfiguration configuration = _request.GetConfiguration();
Uri baseAddress = new Uri(_request.RequestUri, configuration.VirtualPathRoot);
IODataResponseMessage responseMessage = new ODataMessageWrapper(writeStream);
// TODO: Issue 483: http://aspnetwebstack.codeplex.com/workitem/483
// We need to set the MetadataDocumentUri when this property is added to ODataMessageWriterSettings as
// part of the JSON Light work.
// This is required so ODataLib can coerce AbsoluteUri's into RelativeUri's when appropriate in JSON Light.
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings()
{
BaseUri = baseAddress,
Version = _version,
Indent = true,
DisableMessageStreamDisposal = true
};
if (contentHeaders != null && contentHeaders.ContentType != null)
{
MediaTypeHeaderValue contentType = contentHeaders.ContentType;
writerSettings.SetContentType(contentType.ToString(), contentType.CharSet);
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, _deserializerProvider.EdmModel))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
EntitySet = targetEntitySet,
UrlHelper = urlHelper,
PathHandler = configuration.GetODataPathHandler() ?? new DefaultODataPathHandler(Model),
RootElementName = GetRootElementName(path) ?? ElementNameDefault,
SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.Feed,
Request = _request
};
serializer.WriteObject(value, messageWriter, writeContext);
}
}));
}
/// <inheritdoc/>
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");
}
object result = null;
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
// If content length is 0 then return default value for this type
if (contentHeaders != null && contentHeaders.ContentLength == 0)
{
result = GetDefaultValueForType(type);
}
else
{
bool isPatchMode = TryGetInnerTypeForDelta(ref type);
ODataDeserializer deserializer = ODataDeserializerProvider.GetODataDeserializer(type);
if (deserializer == null)
{
throw Error.Argument("type", SRResources.FormatterReadIsNotSupportedForType, type.FullName, GetType().FullName);
}
ODataMessageReader oDataMessageReader = null;
ODataMessageReaderSettings oDataReaderSettings = new ODataMessageReaderSettings { DisableMessageStreamDisposal = true };
try
{
IODataRequestMessage oDataRequestMessage = new ODataMessageWrapper(readStream, contentHeaders);
oDataMessageReader = new ODataMessageReader(oDataRequestMessage, oDataReaderSettings, ODataDeserializerProvider.EdmModel);
ODataDeserializerContext readContext = new ODataDeserializerContext { IsPatchMode = isPatchMode, PatchKeyMode = PatchKeyMode };
result = deserializer.Read(oDataMessageReader, readContext);
}
finally
{
if (oDataMessageReader != null)
{
oDataMessageReader.Dispose();
}
}
}
return TaskHelpers.FromResult(result);
}
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);
}
return(TaskHelpers.RunSynchronously <object>(() =>
{
object result;
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
// If content length is 0 then return default value for this type
if (contentHeaders == null || contentHeaders.ContentLength == 0)
{
result = GetDefaultValueForType(type);
}
else
{
IEdmModel model = _request.GetEdmModel();
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
Type originalType = type;
bool isPatchMode = TryGetInnerTypeForDelta(ref type);
ODataDeserializer deserializer = _deserializerProvider.GetODataDeserializer(model, type);
if (deserializer == null)
{
throw Error.Argument("type", SRResources.FormatterReadIsNotSupportedForType, type.FullName, GetType().FullName);
}
ODataMessageReader oDataMessageReader = null;
ODataMessageReaderSettings oDataReaderSettings = new ODataMessageReaderSettings
{
DisableMessageStreamDisposal = true,
MessageQuotas = MessageReaderQuotas,
BaseUri = GetBaseAddress(_request)
};
try
{
IODataRequestMessage oDataRequestMessage = new ODataMessageWrapper(readStream, contentHeaders);
oDataMessageReader = new ODataMessageReader(oDataRequestMessage, oDataReaderSettings, model);
_request.RegisterForDispose(oDataMessageReader);
ODataPath path = _request.GetODataPath();
ODataDeserializerContext readContext = new ODataDeserializerContext
{
IsPatchMode = isPatchMode,
Path = path,
Model = model,
Request = _request
};
if (isPatchMode)
{
readContext.PatchEntityType = originalType;
}
result = deserializer.Read(oDataMessageReader, readContext);
}
catch (Exception e)
{
if (formatterLogger == null)
{
throw;
}
formatterLogger.LogError(String.Empty, e);
result = GetDefaultValueForType(type);
}
}
return result;
}));
}
public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
{
if (type == null)
{
throw Error.ArgumentNull("type");
}
if (writeStream == null)
{
throw Error.ArgumentNull("writeStream");
}
if (Request == null)
{
throw Error.NotSupported(SRResources.WriteToStreamAsyncMustHaveRequest);
}
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
return TaskHelpers.RunSynchronously(() =>
{
// Get the format and version to use from the ODataServiceVersion content header or if not available use the
// values configured for the specialized formatter instance.
ODataVersion version;
ODataFormat odataFormat;
if (contentHeaders == null)
{
version = _defaultODataVersion;
odataFormat = ODataFormatterConstants.DefaultODataFormat;
}
else
{
version = GetODataVersion(contentHeaders, ODataFormatterConstants.ODataServiceVersion) ?? _defaultODataVersion;
odataFormat = GetODataFormat(contentHeaders);
}
ODataSerializer serializer = ODataSerializerProvider.GetODataPayloadSerializer(type);
if (serializer == null)
{
throw Error.InvalidOperation(SRResources.TypeCannotBeSerialized, type.Name, typeof(ODataMediaTypeFormatter).Name);
}
UrlHelper urlHelper = Request.GetUrlHelper();
NameValueCollection queryStringValues = Request.RequestUri.ParseQueryString();
IEdmEntitySet targetEntitySet = null;
ODataUriHelpers.TryGetEntitySetAndEntityType(Request.RequestUri, Model, out targetEntitySet);
ODataQueryProjectionNode rootProjectionNode = null;
if (targetEntitySet != null)
{
// TODO: Bug 467621: Move to ODataUriParser once it is done.
rootProjectionNode = ODataUriHelpers.GetODataQueryProjectionNode(queryStringValues["$select"], queryStringValues["$expand"], targetEntitySet);
}
// serialize a response
Uri baseAddress = new Uri(Request.RequestUri, Request.GetConfiguration().VirtualPathRoot);
// TODO: Bug 467617: figure out the story for the operation name on the client side and server side.
// This is clearly a workaround. We are assuming that the operation name is the last segment in the request uri
// which works for most cases and fall back to the type name of the object being written.
// We should rather use uri parser semantic tree to figure out the operation name from the request url.
string operationName = ODataUriHelpers.GetOperationName(Request.RequestUri, baseAddress);
operationName = operationName ?? type.Name;
IODataResponseMessage responseMessage = new ODataMessageWrapper(writeStream);
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings()
{
BaseUri = baseAddress,
Version = version,
Indent = true,
DisableMessageStreamDisposal = true,
};
if (contentHeaders != null && contentHeaders.ContentType != null)
{
writerSettings.SetContentType(contentHeaders.ContentType.ToString(), Encoding.UTF8.WebName);
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, ODataDeserializerProvider.EdmModel))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
EntitySet = targetEntitySet,
UrlHelper = urlHelper,
RootProjectionNode = rootProjectionNode,
CurrentProjectionNode = rootProjectionNode,
ServiceOperationName = operationName
};
serializer.WriteObject(value, messageWriter, writeContext);
}
});
}
private IEnumerable<KeyValuePair<string, string>> GetResponseMessageHeaders(Type graphType, ODataFormat odataFormat, ODataVersion version)
{
IODataResponseMessage responseMessage = new ODataMessageWrapper();
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings()
{
BaseUri = new Uri(ODataFormatterConstants.DefaultNamespace),
Version = version,
Indent = false
};
writerSettings.SetContentType(odataFormat);
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings))
{
ODataSerializer serializer = ODataSerializerProvider.GetODataPayloadSerializer(graphType);
// get the OData specific headers for the payloadkind
ODataUtils.SetHeadersForPayload(messageWriter, serializer.ODataPayloadKind);
}
return responseMessage.Headers;
}
public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
{
if (type == null)
{
throw Error.ArgumentNull("type");
}
if (writeStream == null)
{
throw Error.ArgumentNull("writeStream");
}
if (_request == null)
{
throw Error.InvalidOperation(SRResources.WriteToStreamAsyncMustHaveRequest);
}
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
return TaskHelpers.RunSynchronously(() =>
{
// get the most appropriate serializer given that we support inheritance.
IEdmModel model = _request.GetEdmModel();
if (model == null)
{
throw Error.InvalidOperation(SRResources.RequestMustHaveModel);
}
type = value == null ? type : value.GetType();
ODataSerializer serializer = _serializerProvider.GetODataPayloadSerializer(model, type);
if (serializer == null)
{
string message = Error.Format(SRResources.TypeCannotBeSerialized, type.Name, typeof(ODataMediaTypeFormatter).Name);
throw new SerializationException(message);
}
UrlHelper urlHelper = _request.GetUrlHelper();
Contract.Assert(urlHelper != null);
ODataPath path = _request.GetODataPath();
IEdmEntitySet targetEntitySet = path == null ? null : path.EntitySet;
// serialize a response
HttpConfiguration configuration = _request.GetConfiguration();
if (configuration == null)
{
throw Error.InvalidOperation(SRResources.RequestMustContainConfiguration);
}
IODataResponseMessage responseMessage = new ODataMessageWrapper(writeStream, content.Headers);
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings()
{
BaseUri = GetBaseAddress(_request),
Version = _version,
Indent = true,
DisableMessageStreamDisposal = true,
MessageQuotas = MessageWriterQuotas
};
// The MetadataDocumentUri is never required for errors. Additionally, it sometimes won't be available
// for errors, such as when routing itself fails. In that case, the route data property is not
// available on the request, and due to a bug with HttpRoute.GetVirtualPath (bug #669) we won't be able
// to generate a metadata link.
if (serializer.ODataPayloadKind != ODataPayloadKind.Error)
{
string metadataLink = urlHelper.ODataLink(new MetadataPathSegment());
if (metadataLink == null)
{
throw new SerializationException(SRResources.UnableToDetermineMetadataUrl);
}
writerSettings.SetMetadataDocumentUri(new Uri(metadataLink));
}
MediaTypeHeaderValue contentType = null;
if (contentHeaders != null && contentHeaders.ContentType != null)
{
contentType = contentHeaders.ContentType;
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, model))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
Request = _request,
Url = urlHelper,
EntitySet = targetEntitySet,
Model = model,
RootElementName = GetRootElementName(path) ?? "root",
SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.Feed,
Path = path,
MetadataLevel = ODataMediaTypes.GetMetadataLevel(contentType),
};
serializer.WriteObject(value, messageWriter, writeContext);
}
});
}
public override Task WriteToStreamAsync(Type type, object value, Stream writeStream, HttpContent content, TransportContext transportContext)
{
if (type == null)
{
throw Error.ArgumentNull("type");
}
if (writeStream == null)
{
throw Error.ArgumentNull("writeStream");
}
if (Request == null)
{
throw Error.NotSupported(SRResources.WriteToStreamAsyncMustHaveRequest);
}
HttpContentHeaders contentHeaders = content == null ? null : content.Headers;
return(TaskHelpers.RunSynchronously(() =>
{
// Get the format and version to use from the ODataServiceVersion content header or if not available use the
// values configured for the specialized formatter instance.
ODataVersion version;
if (contentHeaders == null)
{
version = _defaultODataVersion;
}
else
{
version = GetODataVersion(contentHeaders, ODataFormatterConstants.ODataServiceVersion) ?? _defaultODataVersion;
}
// get the most appropriate serializer given that we support inheritance.
type = value == null ? type : value.GetType();
ODataSerializer serializer = ODataSerializerProvider.GetODataPayloadSerializer(type);
if (serializer == null)
{
throw Error.InvalidOperation(SRResources.TypeCannotBeSerialized, type.Name, typeof(ODataMediaTypeFormatter).Name);
}
UrlHelper urlHelper = Request.GetUrlHelper();
IEdmEntitySet targetEntitySet = null;
ODataUriHelpers.TryGetEntitySetAndEntityType(Request.RequestUri, Model, out targetEntitySet);
// serialize a response
Uri baseAddress = new Uri(Request.RequestUri, Request.GetConfiguration().VirtualPathRoot);
// TODO: Bug 467617: figure out the story for the operation name on the client side and server side.
// This is clearly a workaround. We are assuming that the operation name is the last segment in the request uri
// which works for most cases and fall back to the type name of the object being written.
// We should rather use uri parser semantic tree to figure out the operation name from the request url.
string operationName = ODataUriHelpers.GetOperationName(Request.RequestUri, baseAddress);
operationName = operationName ?? type.Name;
IODataResponseMessage responseMessage = new ODataMessageWrapper(writeStream);
// TODO: Issue 483: http://aspnetwebstack.codeplex.com/workitem/483
// We need to set the MetadataDocumentUri when this property is added to ODataMessageWriterSettings as
// part of the JSON Light work.
// This is required so ODataLib can coerce AbsoluteUri's into RelativeUri's when appropriate in JSON Light.
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings()
{
BaseUri = baseAddress,
Version = version,
Indent = true,
DisableMessageStreamDisposal = true
};
if (contentHeaders != null && contentHeaders.ContentType != null)
{
writerSettings.SetContentType(contentHeaders.ContentType.ToString(), Encoding.UTF8.WebName);
}
using (ODataMessageWriter messageWriter = new ODataMessageWriter(responseMessage, writerSettings, ODataDeserializerProvider.EdmModel))
{
ODataSerializerContext writeContext = new ODataSerializerContext()
{
EntitySet = targetEntitySet,
UrlHelper = urlHelper,
ServiceOperationName = operationName,
SkipExpensiveAvailabilityChecks = serializer.ODataPayloadKind == ODataPayloadKind.Feed,
Request = Request
};
serializer.WriteObject(value, messageWriter, writeContext);
}
}));
}
