/// <inheritdoc/>
public override void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (graph == null)
{
throw Error.ArgumentNull("graph");
}
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
ODataError oDataError = graph as ODataError;
if (oDataError == null)
{
HttpError httpError = graph as HttpError;
if (httpError == null)
{
string message = Error.Format(SRResources.ErrorTypeMustBeODataErrorOrHttpError, graph.GetType().FullName);
throw new SerializationException(message);
}
else
{
oDataError = httpError.CreateODataError();
}
}
bool includeDebugInformation = oDataError.InnerError != null;
messageWriter.WriteError(oDataError, includeDebugInformation);
}
/// <inheritdoc />
public override void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
IEdmEntitySetBase entitySet = writeContext.NavigationSource as IEdmEntitySetBase;
if (entitySet == null)
{
throw new SerializationException(SRResources.EntitySetMissingDuringSerialization);
}
IEdmTypeReference feedType = writeContext.GetEdmType(graph, type);
Contract.Assert(feedType != null);
IEdmEntityTypeReference entityType = GetEntityType(feedType);
ODataWriter writer = messageWriter.CreateODataFeedWriter(entitySet, entityType.EntityDefinition());
WriteObjectInline(graph, feedType, writer, writeContext);
}
/// <inheritdoc/>
public override void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (graph != null)
{
ODataEntityReferenceLink entityReferenceLink = graph as ODataEntityReferenceLink;
if (entityReferenceLink == null)
{
Uri uri = graph as Uri;
if (uri == null)
{
throw new SerializationException(Error.Format(SRResources.CannotWriteType, GetType().Name, graph.GetType().FullName));
}
entityReferenceLink = new ODataEntityReferenceLink { Url = uri };
}
messageWriter.WriteEntityReferenceLink(entityReferenceLink);
}
}
/// <summary>
/// Creates an <see cref="ODataEnumValue"/> for the object represented by <paramref name="graph"/>.
/// </summary>
/// <param name="graph">The enum value.</param>
/// <param name="enumType">The EDM enum type of the value.</param>
/// <param name="writeContext">The serializer write context.</param>
/// <returns>The created <see cref="ODataEnumValue"/>.</returns>
public virtual ODataEnumValue CreateODataEnumValue(object graph, IEdmEnumTypeReference enumType,
ODataSerializerContext writeContext)
{
if (graph == null)
{
return null;
}
string value = null;
if (graph.GetType().GetTypeInfo().IsEnum)
{
value = graph.ToString();
}
else
{
if (graph.GetType() == typeof(EdmEnumObject))
{
value = ((EdmEnumObject)graph).Value;
}
}
ODataEnumValue enumValue = new ODataEnumValue(value, enumType.FullName());
ODataMetadataLevel metadataLevel = writeContext != null
? writeContext.MetadataLevel
: ODataMetadataLevel.MinimalMetadata;
AddTypeNameAnnotationAsNeeded(enumValue, enumType, metadataLevel);
return enumValue;
}
/// <inheritdoc />
public override void WriteObjectInline(object graph, IEdmTypeReference expectedType, ODataWriter writer,
ODataSerializerContext writeContext)
{
if (writer == null)
{
throw Error.ArgumentNull("writer");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (expectedType == null)
{
throw Error.ArgumentNull("expectedType");
}
if (graph == null)
{
throw new SerializationException(Error.Format(SRResources.CannotSerializerNull, Feed));
}
IEnumerable enumerable = graph as IEnumerable; // Data to serialize
if (enumerable == null)
{
throw new SerializationException(
Error.Format(SRResources.CannotWriteType, GetType().Name, graph.GetType().FullName));
}
WriteFeed(enumerable, expectedType, writer, writeContext);
}
internal ODataProperty CreateProperty(object graph, IEdmTypeReference expectedType, string elementName,
ODataSerializerContext writeContext)
{
Contract.Assert(elementName != null);
return new ODataProperty
{
Name = elementName,
Value = CreateODataValue(graph, expectedType, writeContext)
};
}
private EntityInstanceContext(ODataSerializerContext serializerContext, IEdmEntityTypeReference entityType, IEdmEntityObject edmObject)
{
if (serializerContext == null)
{
throw Error.ArgumentNull("serializerContext");
}
SerializerContext = serializerContext;
EntityType = entityType.EntityDefinition();
EdmObject = edmObject;
}
/// <inheritdoc/>
/// <remarks>The metadata written is from the model set on the <paramref name="messageWriter"/>. The <paramref name="graph" />
/// is not used.</remarks>
public override void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
// NOTE: ODataMessageWriter doesn't have a way to set the IEdmModel. So, there is an underlying assumption here that
// the model received by this method and the model passed(from configuration) while building ODataMessageWriter is the same (clr object).
messageWriter.WriteMetadataDocument();
}
/// <summary>
/// Writes the entity collection results to the response message.
/// </summary>
/// <param name="graph">The entity collection results.</param>
/// <param name="type">The type of the entities.</param>
/// <param name="messageWriter">The message writer.</param>
/// <param name="writeContext">The writing context.</param>
public override void WriteObject(
object graph,
Type type,
ODataMessageWriter messageWriter,
ODataSerializerContext writeContext)
{
EntityCollectionResult collectionResult = graph as EntityCollectionResult;
if (collectionResult != null)
{
graph = collectionResult.Query;
}
base.WriteObject(graph, type, messageWriter, writeContext);
}
/// <summary>
/// Writes the entity result to the response message.
/// </summary>
/// <param name="graph">The entity result to write.</param>
/// <param name="type">The type of the entity.</param>
/// <param name="messageWriter">The message writer.</param>
/// <param name="writeContext">The writing context.</param>
public override void WriteObject(
object graph,
Type type,
ODataMessageWriter messageWriter,
ODataSerializerContext writeContext)
{
EntityResult entityResult = graph as EntityResult;
if (entityResult != null)
{
graph = entityResult.Result;
}
base.WriteObject(graph, type, messageWriter, writeContext);
}
/// <summary>
/// Writes the complex result to the response message.
/// </summary>
/// <param name="graph">The complex result to write.</param>
/// <param name="type">The type of the complex.</param>
/// <param name="messageWriter">The message writer.</param>
/// <param name="writeContext">The writing context.</param>
public override void WriteObject(
object graph,
Type type,
ODataMessageWriter messageWriter,
ODataSerializerContext writeContext)
{
ComplexResult complexResult = graph as ComplexResult;
if (complexResult != null)
{
graph = complexResult.Result;
}
base.WriteObject(graph, type, messageWriter, writeContext);
}
/// <inheritdoc/>
public override sealed ODataValue CreateODataValue(object graph, IEdmTypeReference expectedType, ODataSerializerContext writeContext)
{
if (!expectedType.IsPrimitive())
{
throw Error.InvalidOperation(SRResources.CannotWriteType, typeof(ODataPrimitiveSerializer), expectedType.FullName());
}
ODataPrimitiveValue value = CreateODataPrimitiveValue(graph, expectedType.AsPrimitive(), writeContext);
if (value == null)
{
return new ODataNullValue();
}
return value;
}
/// <inheritdoc/>
public override void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (graph == null)
{
throw Error.ArgumentNull("graph");
}
ODataServiceDocument serviceDocument = graph as ODataServiceDocument;
if (serviceDocument == null)
{
throw new SerializationException(Error.Format(SRResources.CannotWriteType, GetType().Name, type.Name));
}
messageWriter.WriteServiceDocument(serviceDocument);
}
/// <summary>
/// Writes the entity result to the response message.
/// </summary>
/// <param name="graph">The entity result to write.</param>
/// <param name="type">The type of the entity.</param>
/// <param name="messageWriter">The message writer.</param>
/// <param name="writeContext">The writing context.</param>
public override void WriteObject(
object graph,
Type type,
ODataMessageWriter messageWriter,
ODataSerializerContext writeContext)
{
RawResult rawResult = graph as RawResult;
if (rawResult != null)
{
graph = rawResult.Result;
}
if (writeContext != null)
{
graph = RestierPrimitiveSerializer.ConvertToPayloadValue(writeContext.Model, graph);
}
base.WriteObject(graph, type, messageWriter, writeContext);
}
/// <inheritdoc/>
public override void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (writeContext.RootElementName == null)
{
throw Error.Argument("writeContext", SRResources.RootElementNameMissing, typeof(ODataSerializerContext).Name);
}
IEdmTypeReference edmType = writeContext.GetEdmType(graph, type);
Contract.Assert(edmType != null);
messageWriter.WriteProperty(CreateProperty(graph, edmType, writeContext.RootElementName, writeContext));
}
/// <inheritdoc/>
public override void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (graph == null)
{
throw Error.ArgumentNull("graph");
}
if (graph.GetType().GetTypeInfo().IsEnum)
{
messageWriter.WriteValue(graph.ToString());
}
else
{
messageWriter.WriteValue(ODataPrimitiveSerializer.ConvertUnsupportedPrimitives(graph));
}
}
/// <inheridoc />
public override void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (graph != null)
{
ODataEntityReferenceLinks entityReferenceLinks = graph as ODataEntityReferenceLinks;
if (entityReferenceLinks == null)
{
IEnumerable<Uri> uris = graph as IEnumerable<Uri>;
if (uris == null)
{
throw new SerializationException(Error.Format(SRResources.CannotWriteType, GetType().Name, graph.GetType().FullName));
}
entityReferenceLinks = new ODataEntityReferenceLinks
{
Links = uris.Select(uri => new ODataEntityReferenceLink { Url = uri })
};
if (writeContext.Request != null)
{
entityReferenceLinks.Count = writeContext.Request.ODataProperties().TotalCount;
}
}
messageWriter.WriteEntityReferenceLinks(entityReferenceLinks);
}
}
/// <summary>
/// Initializes a new instance of the <see cref="EntityInstanceContext"/> class.
/// </summary>
public EntityInstanceContext()
{
SerializerContext = new ODataSerializerContext();
}
/// <summary>
/// Initializes a new instance of the <see cref="EntityInstanceContext"/> class.
/// </summary>
/// <param name="serializerContext">The backing <see cref="ODataSerializerContext"/>.</param>
/// <param name="entityType">The EDM entity type of this instance context.</param>
/// <param name="entityInstance">The object representing the instance of this context.</param>
public EntityInstanceContext(ODataSerializerContext serializerContext, IEdmEntityTypeReference entityType, object entityInstance)
: this(serializerContext, entityType, AsEdmEntityObject(entityInstance, entityType, serializerContext.Model))
{
}
private void WriteFeed(IEnumerable enumerable, IEdmTypeReference feedType, ODataWriter writer,
ODataSerializerContext writeContext)
{
Contract.Assert(writer != null);
Contract.Assert(writeContext != null);
Contract.Assert(enumerable != null);
Contract.Assert(feedType != null);
IEdmEntityTypeReference elementType = GetEntityType(feedType);
ODataFeed feed = CreateODataFeed(enumerable, feedType.AsCollection(), writeContext);
if (feed == null)
{
throw new SerializationException(Error.Format(SRResources.CannotSerializerNull, Feed));
}
ODataEdmTypeSerializer entrySerializer = SerializerProvider.GetEdmTypeSerializer(elementType);
if (entrySerializer == null)
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeSerialized, elementType.FullName(), typeof(ODataOutputFormatter).Name));
}
// save this for later to support JSON odata.streaming.
Uri nextPageLink = feed.NextPageLink;
feed.NextPageLink = null;
writer.WriteStart(feed);
foreach (object entry in enumerable)
{
if (entry == null)
{
throw new SerializationException(SRResources.NullElementInCollection);
}
entrySerializer.WriteObjectInline(entry, elementType, writer, writeContext);
}
// Subtle and suprising behavior: If the NextPageLink property is set before calling WriteStart(feed),
// the next page link will be written early in a manner not compatible with odata.streaming=true. Instead, if
// the next page link is not set when calling WriteStart(feed) but is instead set later on that feed
// object before calling WriteEnd(), the next page link will be written at the end, as required for
// odata.streaming=true support.
if (nextPageLink != null)
{
feed.NextPageLink = nextPageLink;
}
writer.WriteEnd();
}
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);
}
}
/// <inheritdoc/>
public sealed override ODataValue CreateODataValue(object graph, IEdmTypeReference expectedType, ODataSerializerContext writeContext)
{
if (!expectedType.IsEnum())
{
throw Error.InvalidOperation(SRResources.CannotWriteType, typeof(ODataEnumSerializer).Name, expectedType.FullName());
}
ODataEnumValue value = CreateODataEnumValue(graph, expectedType.AsEnum(), writeContext);
if (value == null)
{
return(new ODataNullValue());
}
return(value);
}
private void WriteResourceSet(IEnumerable enumerable, IEdmTypeReference resourceSetType, ODataWriter writer,
ODataSerializerContext writeContext)
{
Contract.Assert(writer != null);
Contract.Assert(writeContext != null);
Contract.Assert(enumerable != null);
Contract.Assert(resourceSetType != null);
IEdmStructuredTypeReference elementType = GetResourceType(resourceSetType);
ODataResourceSet resourceSet = CreateResourceSet(enumerable, resourceSetType.AsCollection(), writeContext);
if (resourceSet == null)
{
throw new SerializationException(Error.Format(SRResources.CannotSerializerNull, ResourceSet));
}
IEdmEntitySetBase entitySet = writeContext.NavigationSource as IEdmEntitySetBase;
if (entitySet == null)
{
resourceSet.SetSerializationInfo(new ODataResourceSerializationInfo
{
IsFromCollection = true,
NavigationSourceEntityTypeName = elementType.FullName(),
NavigationSourceKind = EdmNavigationSourceKind.UnknownEntitySet,
NavigationSourceName = null
});
}
ODataEdmTypeSerializer resourceSerializer = SerializerProvider.GetEdmTypeSerializer(elementType);
if (resourceSerializer == null)
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeSerialized, elementType.FullName()));
}
// save this for later to support JSON odata.streaming.
Uri nextPageLink = resourceSet.NextPageLink;
resourceSet.NextPageLink = null;
writer.WriteStart(resourceSet);
foreach (object item in enumerable)
{
if (item == null || item is NullEdmComplexObject)
{
if (elementType.IsEntity())
{
throw new SerializationException(SRResources.NullElementInCollection);
}
// for null complex element, it can be serialized as "null" in the collection.
writer.WriteStart(resource: null);
writer.WriteEnd();
}
else
{
resourceSerializer.WriteObjectInline(item, elementType, writer, writeContext);
}
}
// Subtle and surprising behavior: If the NextPageLink property is set before calling WriteStart(resourceSet),
// the next page link will be written early in a manner not compatible with odata.streaming=true. Instead, if
// the next page link is not set when calling WriteStart(resourceSet) but is instead set later on that resourceSet
// object before calling WriteEnd(), the next page link will be written at the end, as required for
// odata.streaming=true support.
if (nextPageLink != null)
{
resourceSet.NextPageLink = nextPageLink;
}
writer.WriteEnd();
}
public virtual ODataOperation CreateODataOperation(IEdmOperation operation, ResourceSetContext resourceSetContext, ODataSerializerContext writeContext)
{
if (operation == null)
{
throw Error.ArgumentNull("operation");
}
if (resourceSetContext == null)
{
throw Error.ArgumentNull("resourceSetContext");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
ODataMetadataLevel metadataLevel = writeContext.MetadataLevel;
IEdmModel model = writeContext.Model;
if (metadataLevel != ODataMetadataLevel.FullMetadata)
{
return(null);
}
OperationLinkBuilder builder;
builder = model.GetOperationLinkBuilder(operation);
if (builder == null)
{
return(null);
}
Uri target = builder.BuildLink(resourceSetContext);
if (target == null)
{
return(null);
}
Uri baseUri = new Uri(writeContext.InternalUrlHelper.CreateODataLink(MetadataSegment.Instance));
Uri metadata = new Uri(baseUri, "#" + operation.FullName());
ODataOperation odataOperation;
IEdmAction action = operation as IEdmAction;
if (action != null)
{
odataOperation = new ODataAction();
}
else
{
odataOperation = new ODataFunction();
}
odataOperation.Metadata = metadata;
// Always omit the title in minimal/no metadata modes.
ODataResourceSerializer.EmitTitle(model, operation, odataOperation);
// Omit the target in minimal/no metadata modes unless it doesn't follow conventions.
if (metadataLevel == ODataMetadataLevel.FullMetadata || !builder.FollowsConventions)
{
odataOperation.Target = target;
}
return(odataOperation);
}
/// <summary>
/// Creates an <see cref="ODataPrimitiveValue"/> for the object represented by <paramref name="graph"/>.
/// </summary>
/// <param name="graph">The primitive value.</param>
/// <param name="primitiveType">The EDM primitive type of the value.</param>
/// <param name="writeContext">The serializer write context.</param>
/// <returns>The created <see cref="ODataPrimitiveValue"/>.</returns>
public virtual ODataPrimitiveValue CreateODataPrimitiveValue(object graph, IEdmPrimitiveTypeReference primitiveType,
ODataSerializerContext writeContext)
{
// TODO: Bug 467598: validate the type of the object being passed in here with the underlying primitive type.
return CreatePrimitive(graph, primitiveType, writeContext);
}
/// <inheritdoc/>
public override Task WriteObjectAsync(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (graph == null)
{
throw Error.ArgumentNull("graph");
}
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
ODataError oDataError = GetError(graph);
bool includeDebugInformation = oDataError.InnerError != null;
return(messageWriter.WriteErrorAsync(oDataError, includeDebugInformation));
}
private IEnumerable <ODataOperation> CreateODataOperations(IEnumerable <IEdmOperation> operations, ResourceSetContext resourceSetContext, ODataSerializerContext writeContext)
{
Contract.Assert(operations != null);
Contract.Assert(resourceSetContext != null);
Contract.Assert(writeContext != null);
foreach (IEdmOperation operation in operations)
{
ODataOperation oDataOperation = CreateODataOperation(operation, resourceSetContext, writeContext);
if (oDataOperation != null)
{
yield return(oDataOperation);
}
}
}
/// <summary>
/// Creates an <see cref="ODataCollectionValue"/> for the enumerable represented by <paramref name="enumerable"/>.
/// </summary>
/// <param name="enumerable">The value of the collection to be created.</param>
/// <param name="elementType">The element EDM type of the collection.</param>
/// <param name="writeContext">The serializer context to be used while creating the collection.</param>
/// <returns>The created <see cref="ODataCollectionValue"/>.</returns>
public virtual ODataCollectionValue CreateODataCollectionValue(IEnumerable enumerable, IEdmTypeReference elementType,
ODataSerializerContext writeContext)
{
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (elementType == null)
{
throw Error.ArgumentNull("elementType");
}
ArrayList valueCollection = new ArrayList();
if (enumerable != null)
{
ODataEdmTypeSerializer itemSerializer = null;
foreach (object item in enumerable)
{
if (item == null)
{
if (elementType.IsNullable)
{
valueCollection.Add(value: null);
continue;
}
throw new SerializationException(SRResources.NullElementInCollection);
}
IEdmTypeReference actualType = writeContext.GetEdmType(item, item.GetType());
Contract.Assert(actualType != null);
itemSerializer = itemSerializer ?? SerializerProvider.GetEdmTypeSerializer(actualType);
if (itemSerializer == null)
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeSerialized, actualType.FullName()));
}
// ODataCollectionWriter expects the individual elements in the collection to be the underlying
// values and not ODataValues.
valueCollection.Add(
itemSerializer.CreateODataValue(item, actualType, writeContext).GetInnerValue());
}
}
// Ideally, we'd like to do this:
// string typeName = _edmCollectionType.FullName();
// But ODataLib currently doesn't support .FullName() for collections. As a workaround, we construct the
// collection type name the hard way.
string typeName = "Collection(" + elementType.FullName() + ")";
// ODataCollectionValue is only a V3 property, arrays inside Complex Types or Entity types are only supported in V3
// if a V1 or V2 Client requests a type that has a collection within it ODataLib will throw.
ODataCollectionValue value = new ODataCollectionValue
{
Items = valueCollection.Cast <object>(),
TypeName = typeName
};
AddTypeNameAnnotationAsNeeded(value, writeContext.MetadataLevel);
return(value);
}
/// <summary>
/// Creates an <see cref="ODataComplexValue"/> for the object represented by <paramref name="graph"/>.
/// </summary>
/// <param name="graph">The value of the <see cref="ODataComplexValue"/> to be created.</param>
/// <param name="complexType">The EDM complex type of the object.</param>
/// <param name="writeContext">The serializer context.</param>
/// <returns>The created <see cref="ODataComplexValue"/>.</returns>
public virtual ODataComplexValue CreateODataComplexValue(object graph, IEdmComplexTypeReference complexType,
ODataSerializerContext writeContext)
{
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (graph == null || graph is NullEdmComplexObject)
{
return(null);
}
IEdmComplexObject complexObject = graph as IEdmComplexObject ?? new TypedEdmComplexObject(graph, complexType, writeContext.Model);
List <ODataProperty> propertyCollection = new List <ODataProperty>();
foreach (IEdmProperty property in complexType.ComplexDefinition().Properties())
{
IEdmTypeReference propertyType = property.Type;
ODataEdmTypeSerializer propertySerializer = SerializerProvider.GetEdmTypeSerializer(propertyType);
if (propertySerializer == null)
{
throw Error.NotSupported(SRResources.TypeCannotBeSerialized, propertyType.FullName(), typeof(ODataOutputFormatter).Name);
}
object propertyValue;
if (complexObject.TryGetPropertyValue(property.Name, out propertyValue))
{
if (propertyType != null && propertyType.IsComplex())
{
IEdmTypeReference actualType = writeContext.GetEdmType(propertyValue, propertyValue.GetType());
if (actualType != null && propertyType != actualType)
{
propertyType = actualType;
}
}
propertyCollection.Add(
propertySerializer.CreateProperty(propertyValue, propertyType, property.Name, writeContext));
}
}
// Try to add the dynamic properties if the complex type is open.
if (complexType.ComplexDefinition().IsOpen)
{
List <ODataProperty> dynamicProperties =
AppendDynamicProperties(complexObject, complexType, writeContext, propertyCollection, new string[0]);
if (dynamicProperties != null)
{
propertyCollection.AddRange(dynamicProperties);
}
}
string typeName = complexType.FullName();
ODataComplexValue value = new ODataComplexValue()
{
Properties = propertyCollection,
TypeName = typeName
};
AddTypeNameAnnotationAsNeeded(value, writeContext.MetadataLevel);
return(value);
}
internal static ODataPrimitiveValue CreatePrimitive(object value, IEdmPrimitiveTypeReference primitveType,
ODataSerializerContext writeContext)
{
if (value == null)
{
return null;
}
object supportedValue = ConvertUnsupportedPrimitives(value);
ODataPrimitiveValue primitive = new ODataPrimitiveValue(supportedValue);
if (writeContext != null)
{
AddTypeNameAnnotationAsNeeded(primitive, primitveType, writeContext.MetadataLevel);
}
return primitive;
}
/// <inheritdoc />
public override void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
IEdmEntitySetBase entitySet = writeContext.NavigationSource as IEdmEntitySetBase;
IEdmTypeReference resourceSetType = writeContext.GetEdmType(graph, type);
Contract.Assert(resourceSetType != null);
IEdmStructuredTypeReference resourceType = GetResourceType(resourceSetType);
ODataWriter writer = messageWriter.CreateODataResourceSetWriter(entitySet, resourceType.StructuredDefinition());
WriteObjectInline(graph, resourceSetType, writer, writeContext);
}
/// <summary>
/// Writes the given object specified by the parameter graph as a part of an existing OData message using the given
/// messageWriter and the writeContext.
/// </summary>
/// <param name="graph">The object to be written.</param>
/// <param name="expectedType">The expected EDM type of the object represented by <paramref name="graph"/>.</param>
/// <param name="writer">The <see cref="ODataWriter" /> to be used for writing.</param>
/// <param name="writeContext">The <see cref="ODataSerializerContext"/>.</param>
public virtual void WriteObjectInline(object graph, IEdmTypeReference expectedType, ODataWriter writer,
ODataSerializerContext writeContext)
{
throw Error.NotSupported(SRResources.WriteObjectInlineNotSupported, GetType().Name);
}
/// <inheritdoc/>
public override Task WriteObjectAsync(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (graph != null)
{
ODataEntityReferenceLink entityReferenceLink = GetEntityReferenceLink(graph);
return(messageWriter.WriteEntityReferenceLinkAsync(entityReferenceLink));
}
return(TaskHelpers.Completed());
}
/// <inheritdoc/>
public override void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (writeContext.RootElementName == null)
{
throw Error.Argument("writeContext", SRResources.RootElementNameMissing, typeof(ODataSerializerContext).Name);
}
IEdmTypeReference edmType = writeContext.GetEdmType(graph, type);
Contract.Assert(edmType != null);
messageWriter.WriteProperty(CreateProperty(graph, edmType, writeContext.RootElementName, writeContext));
}
/// <summary>
/// Create the <see cref="ODataFeed"/> to be written for the given feed instance.
/// </summary>
/// <param name="feedInstance">The instance representing the feed being written.</param>
/// <param name="feedType">The EDM type of the feed being written.</param>
/// <param name="writeContext">The serializer context.</param>
/// <returns>The created <see cref="ODataFeed"/> object.</returns>
public virtual ODataFeed CreateODataFeed(IEnumerable feedInstance, IEdmCollectionTypeReference feedType,
ODataSerializerContext writeContext)
{
ODataFeed feed = new ODataFeed();
if (writeContext.ExpandedEntity == null)
{
// If we have more OData format specific information apply it now, only if we are the root feed.
PageResult odataFeedAnnotations = feedInstance as PageResult;
if (odataFeedAnnotations != null)
{
feed.Count = odataFeedAnnotations.Count;
feed.NextPageLink = odataFeedAnnotations.NextPageLink;
}
else if (writeContext.Request != null)
{
feed.NextPageLink = writeContext.Request.ODataProperties().NextLink;
long? countValue = writeContext.Request.ODataProperties().TotalCount;
if (countValue.HasValue)
{
feed.Count = countValue.Value;
}
}
}
else
{
// nested feed
ITruncatedCollection truncatedCollection = feedInstance as ITruncatedCollection;
if (truncatedCollection != null && truncatedCollection.IsTruncated)
{
feed.NextPageLink = GetNestedNextPageLink(writeContext, truncatedCollection.PageSize);
}
}
return feed;
}
private static Uri GetNestedNextPageLink(ODataSerializerContext writeContext, int pageSize)
{
Contract.Assert(writeContext.ExpandedEntity != null);
IEdmNavigationSource sourceNavigationSource = writeContext.ExpandedEntity.NavigationSource;
NavigationSourceLinkBuilderAnnotation linkBuilder = writeContext.Model.GetNavigationSourceLinkBuilder(sourceNavigationSource);
Uri navigationLink =
linkBuilder.BuildNavigationLink(writeContext.ExpandedEntity, writeContext.NavigationProperty);
if (navigationLink != null)
{
// return ODataQueryOptions.GetNextPageLink(navigationLink, pageSize);
throw new NotImplementedException("ODataQueryOptions");
}
return null;
}
/// <summary>
/// Create the <see cref="ODataResourceSet"/> to be written for the given resourceSet instance.
/// </summary>
/// <param name="resourceSetInstance">The instance representing the resourceSet being written.</param>
/// <param name="resourceSetType">The EDM type of the resourceSet being written.</param>
/// <param name="writeContext">The serializer context.</param>
/// <returns>The created <see cref="ODataResourceSet"/> object.</returns>
public virtual ODataResourceSet CreateResourceSet(IEnumerable resourceSetInstance, IEdmCollectionTypeReference resourceSetType,
ODataSerializerContext writeContext)
{
ODataResourceSet resourceSet = new ODataResourceSet
{
TypeName = resourceSetType.FullName()
};
IEdmStructuredTypeReference structuredType = GetResourceType(resourceSetType).AsStructured();
if (writeContext.NavigationSource != null && structuredType.IsEntity())
{
ResourceSetContext resourceSetContext = ResourceSetContext.Create(writeContext, resourceSetInstance);
IEdmEntityType entityType = structuredType.AsEntity().EntityDefinition();
var operations = writeContext.Model.GetAvailableOperationsBoundToCollection(entityType);
var odataOperations = CreateODataOperations(operations, resourceSetContext, writeContext);
foreach (var odataOperation in odataOperations)
{
ODataAction action = odataOperation as ODataAction;
if (action != null)
{
resourceSet.AddAction(action);
}
else
{
resourceSet.AddFunction((ODataFunction)odataOperation);
}
}
}
if (writeContext.ExpandedResource == null)
{
// If we have more OData format specific information apply it now, only if we are the root feed.
PageResult odataResourceSetAnnotations = resourceSetInstance as PageResult;
if (odataResourceSetAnnotations != null)
{
resourceSet.Count = odataResourceSetAnnotations.Count;
resourceSet.NextPageLink = odataResourceSetAnnotations.NextPageLink;
}
else if (writeContext.Request != null)
{
resourceSet.NextPageLink = writeContext.InternalRequest.Context.NextLink;
resourceSet.DeltaLink = writeContext.InternalRequest.Context.DeltaLink;
long?countValue = writeContext.InternalRequest.Context.TotalCount;
if (countValue.HasValue)
{
resourceSet.Count = countValue.Value;
}
}
}
else
{
// nested resourceSet
ITruncatedCollection truncatedCollection = resourceSetInstance as ITruncatedCollection;
if (truncatedCollection != null && truncatedCollection.IsTruncated)
{
resourceSet.NextPageLink = GetNestedNextPageLink(writeContext, truncatedCollection.PageSize);
}
ICountOptionCollection countOptionCollection = resourceSetInstance as ICountOptionCollection;
if (countOptionCollection != null && countOptionCollection.TotalCount != null)
{
resourceSet.Count = countOptionCollection.TotalCount;
}
}
return(resourceSet);
}
/// <inheritdoc/>
public override void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (graph != null)
{
ODataEntityReferenceLink entityReferenceLink = GetEntityReferenceLink(graph);
messageWriter.WriteEntityReferenceLink(entityReferenceLink);
}
}
/// <summary>
/// Creates an <see cref="ODataValue"/> for the object represented by <paramref name="graph"/>.
/// </summary>
/// <param name="graph">The value of the <see cref="ODataValue"/> to be created.</param>
/// <param name="expectedType">The expected EDM type of the object represented by <paramref name="graph"/>.</param>
/// <param name="writeContext">The <see cref="ODataSerializerContext"/>.</param>
/// <returns>The <see cref="ODataValue"/> created.</returns>
public virtual ODataValue CreateODataValue(object graph, IEdmTypeReference expectedType, ODataSerializerContext writeContext)
{
throw Error.NotSupported(SRResources.CreateODataValueNotSupported, GetType().Name);
}
/// <summary>
/// Writes the given object specified by the parameter graph as a whole using the given messageWriter and writeContext.
/// </summary>
/// <param name="graph">The object to be written</param>
/// <param name="type">The type of the object to be written.</param>
/// <param name="messageWriter">The <see cref="ODataMessageWriter"/> to be used for writing.</param>
/// <param name="writeContext">The <see cref="ODataSerializerContext"/>.</param>
public virtual void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
throw Error.NotSupported(SRResources.WriteObjectNotSupported, GetType().Name);
}
internal List<ODataProperty> AppendDynamicProperties(object source, IEdmStructuredTypeReference structuredType,
ODataSerializerContext writeContext, List<ODataProperty> declaredProperties,
string[] selectedDynamicProperties)
{
Contract.Assert(source != null);
Contract.Assert(structuredType != null);
Contract.Assert(writeContext != null);
Contract.Assert(writeContext.Model != null);
PropertyInfo dynamicPropertyInfo = EdmLibHelpers.GetDynamicPropertyDictionary(
structuredType.StructuredDefinition(), writeContext.Model);
IEdmStructuredObject structuredObject = source as IEdmStructuredObject;
object value;
IDelta delta = source as IDelta;
if (delta == null)
{
if (dynamicPropertyInfo == null || structuredObject == null ||
!structuredObject.TryGetPropertyValue(dynamicPropertyInfo.Name, out value) || value == null)
{
return null;
}
}
else
{
value = ((EdmStructuredObject)structuredObject).TryGetDynamicProperties();
}
IDictionary<string, object> dynamicPropertyDictionary = (IDictionary<string, object>)value;
// Build a HashSet to store the declared property names.
// It is used to make sure the dynamic property name is different from all declared property names.
HashSet<string> declaredPropertyNameSet = new HashSet<string>(declaredProperties.Select(p => p.Name));
List<ODataProperty> dynamicProperties = new List<ODataProperty>();
IEnumerable<KeyValuePair<string, object>> dynamicPropertiesToSelect =
dynamicPropertyDictionary.Where(
x => !selectedDynamicProperties.Any() || selectedDynamicProperties.Contains(x.Key));
foreach (KeyValuePair<string, object> dynamicProperty in dynamicPropertiesToSelect)
{
if (String.IsNullOrEmpty(dynamicProperty.Key) || dynamicProperty.Value == null)
{
continue; // skip the null object
}
if (declaredPropertyNameSet.Contains(dynamicProperty.Key))
{
throw Error.InvalidOperation(SRResources.DynamicPropertyNameAlreadyUsedAsDeclaredPropertyName,
dynamicProperty.Key, structuredType.FullName());
}
IEdmTypeReference edmTypeReference = writeContext.GetEdmType(dynamicProperty.Value,
dynamicProperty.Value.GetType());
if (edmTypeReference == null)
{
throw Error.NotSupported(SRResources.TypeOfDynamicPropertyNotSupported,
dynamicProperty.Value.GetType().FullName, dynamicProperty.Key);
}
ODataEdmTypeSerializer propertySerializer = SerializerProvider.GetEdmTypeSerializer(edmTypeReference);
if (propertySerializer == null)
{
throw Error.NotSupported(SRResources.DynamicPropertyCannotBeSerialized, dynamicProperty.Key,
edmTypeReference.FullName());
}
dynamicProperties.Add(propertySerializer.CreateProperty(
dynamicProperty.Value, edmTypeReference, dynamicProperty.Key, writeContext));
}
return dynamicProperties;
}
/// <inheritdoc/>
public override void WriteObject(object graph, Type type, ODataMessageWriter messageWriter, ODataSerializerContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (graph == null)
{
throw Error.ArgumentNull("graph");
}
ODataServiceDocument serviceDocument = graph as ODataServiceDocument;
if (serviceDocument == null)
{
throw new SerializationException(Error.Format(SRResources.CannotWriteType, GetType().Name, type.Name));
}
messageWriter.WriteServiceDocument(serviceDocument);
}