/// <inheritdoc/>
public override void WriteObject(object graph, ODataMessageWriter messageWriter, ODataSerializerWriteContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
ODataCollectionWriter writer = messageWriter.CreateODataCollectionWriter();
writer.WriteStart(
new ODataCollectionStart
{
Name = writeContext.ResponseContext.ServiceOperationName
});
ODataProperty property = CreateProperty(graph, writeContext.ResponseContext.ServiceOperationName, writeContext);
if (property != null)
{
ODataCollectionValue collectionValue = property.Value as ODataCollectionValue;
foreach (object item in collectionValue.Items)
{
writer.WriteItem(item);
}
writer.WriteEnd();
writer.Flush();
}
}
public ODataFeedSerializerTests()
{
_model = SerializationTestsHelpers.SimpleCustomerOrderModel();
_customerSet = _model.FindDeclaredEntityContainer("Default.Container").FindEntitySet("Customers");
_customers = new[] {
new Customer()
{
FirstName = "Foo",
LastName = "Bar",
ID = 10,
},
new Customer()
{
FirstName = "Foo",
LastName = "Bar",
ID = 42,
}
};
_customersType = new EdmCollectionTypeReference(
new EdmCollectionType(
new EdmEntityTypeReference(
_customerSet.ElementType,
isNullable: false)),
isNullable: false);
_urlHelper = new Mock <UrlHelper>(new HttpRequestMessage()).Object;
_writeContext = new ODataSerializerWriteContext(new ODataResponseContext())
{
EntitySet = _customerSet, UrlHelper = _urlHelper
};
}
public ODataFeedSerializerTests()
{
_model = SerializationTestsHelpers.SimpleCustomerOrderModel();
_customerSet = _model.FindDeclaredEntityContainer("Default.Container").FindEntitySet("Customers");
_customers = new[] {
new Customer()
{
FirstName = "Foo",
LastName = "Bar",
ID = 10,
},
new Customer()
{
FirstName = "Foo",
LastName = "Bar",
ID = 42,
}
};
_customersType = new EdmCollectionTypeReference(
new EdmCollectionType(
new EdmEntityTypeReference(
_customerSet.ElementType,
isNullable: false)),
isNullable: false);
_urlHelper = new Mock<UrlHelper>(new HttpRequestMessage()).Object;
_writeContext = new ODataSerializerWriteContext(new ODataResponseContext()) { EntitySet = _customerSet, UrlHelper = _urlHelper };
}
private IEnumerable <ODataProperty> CreatePropertyBag(object graph, ODataSerializerWriteContext writeContext)
{
IEnumerable <IEdmStructuralProperty> selectProperties;
if (writeContext.CurrentProjectionNode != null && writeContext.CurrentProjectionNode.Selects.Any())
{
selectProperties = _edmEntityTypeReference
.StructuralProperties()
.Where(p => writeContext.CurrentProjectionNode.Selects.Any(node => node.Name == p.Name));
}
else
{
selectProperties = _edmEntityTypeReference.StructuralProperties();
}
List <ODataProperty> properties = new List <ODataProperty>();
foreach (IEdmStructuralProperty property in selectProperties)
{
ODataSerializer serializer = SerializerProvider.GetEdmTypeSerializer(property.Type);
if (serializer == null)
{
throw Error.NotSupported(SRResources.TypeCannotBeSerialized, property.Type.FullName(), typeof(ODataMediaTypeFormatter).Name);
}
object propertyValue = graph.GetType().GetProperty(property.Name).GetValue(graph, index: null);
properties.Add(serializer.CreateProperty(propertyValue, property.Name, writeContext));
}
return(properties);
}
public override void WriteObject(object graph, ODataMessageWriter messageWriter, ODataSerializerWriteContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
messageWriter.WriteEntityReferenceLink(new ODataEntityReferenceLink { Url = graph as Uri });
}
public override ODataProperty CreateProperty(object graph, string elementName, ODataSerializerWriteContext writeContext)
{
if (String.IsNullOrWhiteSpace(elementName))
{
throw Error.ArgumentNullOrEmpty("elementName");
}
// TODO: Bug 467598: validate the type of the object being passed in here with the underlying primitive type.
return new ODataProperty() { Value = graph, Name = elementName };
}
public override void WriteObject(object graph, ODataMessageWriter messageWriter, ODataSerializerWriteContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
ODataWriter writer = messageWriter.CreateODataFeedWriter();
WriteObjectInline(graph, writer, writeContext);
writer.Flush();
}
private void WriteNavigationLinks(EntityInstanceContext context, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
foreach (IEdmNavigationProperty navProperty in _edmEntityTypeReference.NavigationProperties())
{
IEdmTypeReference propertyType = navProperty.Type;
object propertyValue = context.EntityInstance.GetType().GetProperty(navProperty.Name).GetValue(context.EntityInstance, index: null);
if (writeContext.EntitySet != null)
{
IEdmEntitySet currentEntitySet = writeContext.EntitySet.FindNavigationTarget(navProperty);
IEntitySetLinkBuilder linkBuilder = SerializerProvider.EdmModel.GetEntitySetLinkBuilder(writeContext.EntitySet);
ODataNavigationLink navigationLink = new ODataNavigationLink
{
IsCollection = propertyType.IsCollection(),
Name = navProperty.Name,
Url = linkBuilder.BuildNavigationLink(context, navProperty)
};
ODataQueryProjectionNode expandNode = null;
if (writeContext.CurrentProjectionNode != null)
{
expandNode = writeContext.CurrentProjectionNode.Expands.FirstOrDefault(p => p.Name == navProperty.Name);
}
if (expandNode != null && propertyValue != null)
{
writer.WriteStart(navigationLink);
ODataSerializer serializer = SerializerProvider.GetEdmTypeSerializer(propertyType);
if (serializer == null)
{
throw Error.NotSupported(SRResources.TypeCannotBeSerialized, navProperty.Type.FullName(), typeof(ODataMediaTypeFormatter).Name);
}
ODataSerializerWriteContext childWriteContext = new ODataSerializerWriteContext(writeContext.ResponseContext);
childWriteContext.UrlHelper = writeContext.UrlHelper;
childWriteContext.EntitySet = currentEntitySet;
childWriteContext.RootProjectionNode = writeContext.RootProjectionNode;
childWriteContext.CurrentProjectionNode = expandNode;
serializer.WriteObjectInline(propertyValue, writer, childWriteContext);
writer.WriteEnd();
}
else if (!writeContext.IsRequest)
{
// delayed links cannot be written on requests
writer.WriteStart(navigationLink);
writer.WriteEnd();
}
}
}
}
public override ODataProperty CreateProperty(object graph, string elementName, ODataSerializerWriteContext writeContext)
{
if (String.IsNullOrWhiteSpace(elementName))
{
throw Error.ArgumentNullOrEmpty("elementName");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
List<ODataProperty> propertyCollection = null;
if (graph != null)
{
propertyCollection = new List<ODataProperty>();
foreach (IEdmProperty property in _edmComplexType.ComplexDefinition().Properties())
{
IEdmTypeReference propertyType = property.Type;
ODataSerializer propertySerializer = SerializerProvider.GetEdmTypeSerializer(propertyType);
if (propertySerializer == null)
{
throw Error.NotSupported("Type {0} is not a serializable type", propertyType.FullName());
}
// TODO 453795: [OData]Cleanup reflection code in the ODataFormatter.
object propertyValue = graph.GetType().GetProperty(property.Name).GetValue(graph, index: null);
propertyCollection.Add(propertySerializer.CreateProperty(propertyValue, property.Name, writeContext));
}
}
if (propertyCollection != null)
{
return new ODataProperty()
{
Name = elementName,
Value = new ODataComplexValue()
{
Properties = propertyCollection,
TypeName = _edmComplexType.FullName()
}
};
}
else
{
return null;
}
}
public override void WriteObject(object graph, ODataMessageWriter messageWriter, ODataSerializerWriteContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
ODataProperty property = CreateProperty(graph, writeContext.ResponseContext.ServiceOperationName, writeContext);
messageWriter.WriteProperty(property);
}
public override void WriteObjectInline(object graph, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
if (writer == null)
{
throw Error.ArgumentNull("writer");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (graph != null)
{
WriteFeed(graph, writer, writeContext);
}
else
{
throw new SerializationException(Error.Format(SRResources.CannotSerializerNull, ODataFormatterConstants.Feed));
}
}
public override void WriteObject(object graph, ODataMessageWriter messageWriter, ODataSerializerWriteContext writeContext)
{
if (graph == null)
{
throw Error.ArgumentNull("graph");
}
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
ODataError odataError = graph as ODataError;
if (odataError == null)
{
throw Error.InvalidOperation(SRResources.ErrorTypeMustBeODataError, graph.GetType().FullName);
}
bool includeDebugInformation = odataError.InnerError != null;
messageWriter.WriteError(odataError, includeDebugInformation);
}
public override void WriteObjectInline(object graph, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
if (writer == null)
{
throw Error.ArgumentNull("writer");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (graph != null)
{
WriteFeed(graph, writer, writeContext);
}
else
{
throw new SerializationException(Error.Format(SRResources.CannotSerializerNull, ODataFormatterConstants.Feed));
}
}
public override void WriteObjectInline(object graph, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
if (writer == null)
{
throw Error.ArgumentNull("writer");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (graph != null)
{
IEnumerable <ODataProperty> propertyBag = CreatePropertyBag(graph, writeContext);
WriteEntry(graph, propertyBag, writer, writeContext);
}
else
{
throw new SerializationException(Error.Format(Properties.SRResources.CannotSerializerNull, ODataFormatterConstants.Entry));
}
}
public override void WriteObjectInline(object graph, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
if (writer == null)
{
throw Error.ArgumentNull("writer");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
if (graph != null)
{
IEnumerable<ODataProperty> propertyBag = CreatePropertyBag(graph, writeContext);
WriteEntry(graph, propertyBag, writer, writeContext);
}
else
{
throw new SerializationException(Error.Format(Properties.SRResources.CannotSerializerNull, ODataFormatterConstants.Entry));
}
}
private void WriteEntry(object graph, IEnumerable<ODataProperty> propertyBag, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
IEdmEntityType entityType = _edmEntityTypeReference.EntityDefinition();
EntityInstanceContext entityInstanceContext = new EntityInstanceContext(SerializerProvider.EdmModel, writeContext.EntitySet, entityType, writeContext.UrlHelper, graph);
ODataEntry entry = new ODataEntry
{
TypeName = _edmEntityTypeReference.FullName(),
Properties = propertyBag,
};
if (writeContext.EntitySet != null)
{
IEntitySetLinkBuilder linkBuilder = SerializerProvider.EdmModel.GetEntitySetLinkBuilder(writeContext.EntitySet);
string idLink = linkBuilder.BuildIdLink(entityInstanceContext);
if (idLink != null)
{
entry.Id = idLink;
}
Uri readLink = linkBuilder.BuildReadLink(entityInstanceContext);
if (readLink != null)
{
entry.ReadLink = readLink;
}
Uri editLink = linkBuilder.BuildEditLink(entityInstanceContext);
if (editLink != null)
{
entry.EditLink = editLink;
}
}
writer.WriteStart(entry);
WriteNavigationLinks(entityInstanceContext, writer, writeContext);
writer.WriteEnd();
}
private void WriteFeed(object graph, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
ODataSerializer entrySerializer = SerializerProvider.GetEdmTypeSerializer(_edmCollectionType.ElementType());
if (entrySerializer == null)
{
throw Error.NotSupported(SRResources.TypeCannotBeSerialized, _edmCollectionType.ElementType(), typeof(ODataMediaTypeFormatter).Name);
}
Contract.Assert(entrySerializer.ODataPayloadKind == ODataPayloadKind.Entry);
IEnumerable enumerable = graph as IEnumerable; // Data to serialize
if (enumerable != null)
{
ODataFeed feed = new ODataFeed();
// TODO: Bug 467590: remove the hardcoded feed id. Get support for it from the model builder ?
feed.Id = FeedNamespace + _edmCollectionType.FullName();
// If we have more OData format specific information apply it now.
ODataResult odataFeedAnnotations = graph as ODataResult;
if (odataFeedAnnotations != null)
{
feed.Count = odataFeedAnnotations.Count;
feed.NextPageLink = odataFeedAnnotations.NextPageLink;
}
writer.WriteStart(feed);
foreach (object entry in enumerable)
{
entrySerializer.WriteObjectInline(entry, writer, writeContext);
}
writer.WriteEnd();
}
}
/// <inheritdoc/>
public override ODataProperty CreateProperty(object graph, string elementName, ODataSerializerWriteContext writeContext)
{
if (String.IsNullOrWhiteSpace(elementName))
{
throw Error.ArgumentNullOrEmpty("elementName");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
IEnumerable enumerable = graph as IEnumerable;
if (enumerable != null)
{
ArrayList valueCollection = new ArrayList();
IEdmTypeReference itemType = _edmCollectionType.ElementType();
ODataSerializer itemSerializer = SerializerProvider.GetEdmTypeSerializer(itemType);
if (itemSerializer == null)
{
throw Error.NotSupported(SRResources.TypeCannotBeSerialized, itemType.FullName(), typeof(ODataMediaTypeFormatter).Name);
}
foreach (object item in enumerable)
{
valueCollection.Add(itemSerializer.CreateProperty(item, ODataFormatterConstants.Element, writeContext).Value);
}
// 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.
// Also, note that TypeName is an optional property for ODataCollectionValue
return new ODataProperty() { Name = elementName, Value = new ODataCollectionValue { Items = valueCollection } };
}
return null;
}
private void WriteFeed(object graph, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
ODataSerializer entrySerializer = SerializerProvider.GetEdmTypeSerializer(_edmCollectionType.ElementType());
if (entrySerializer == null)
{
throw Error.NotSupported(SRResources.TypeCannotBeSerialized, _edmCollectionType.ElementType(), typeof(ODataMediaTypeFormatter).Name);
}
Contract.Assert(entrySerializer.ODataPayloadKind == ODataPayloadKind.Entry);
IEnumerable enumerable = graph as IEnumerable; // Data to serialize
if (enumerable != null)
{
ODataFeed feed = new ODataFeed();
// TODO: Bug 467590: remove the hardcoded feed id. Get support for it from the model builder ?
feed.Id = FeedNamespace + _edmCollectionType.FullName();
// If we have more OData format specific information apply it now.
ODataResult odataFeedAnnotations = graph as ODataResult;
if (odataFeedAnnotations != null)
{
feed.Count = odataFeedAnnotations.Count;
feed.NextPageLink = odataFeedAnnotations.NextPageLink;
}
writer.WriteStart(feed);
foreach (object entry in enumerable)
{
entrySerializer.WriteObjectInline(entry, writer, writeContext);
}
writer.WriteEnd();
}
}
public override void WriteObject(object graph, ODataMessageWriter messageWriter, ODataSerializerWriteContext writeContext)
{
if (graph == null)
{
throw Error.ArgumentNull("graph");
}
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
ODataError odataError = graph as ODataError;
if (odataError == null)
{
throw Error.InvalidOperation(SRResources.ErrorTypeMustBeODataError, graph.GetType().FullName);
}
bool includeDebugInformation = odataError.InnerError != null;
messageWriter.WriteError(odataError, includeDebugInformation);
}
public override ODataProperty CreateProperty(object graph, string elementName, ODataSerializerWriteContext writeContext)
{
if (String.IsNullOrWhiteSpace(elementName))
{
throw Error.ArgumentNullOrEmpty("elementName");
}
string value = null;
if (graph != null)
{
// TODO: Bug 453831: [OData] Figure out how OData serializes enum flags
value = graph.ToString();
}
ODataProperty property = new ODataProperty()
{
Name = elementName,
Value = value
};
return property;
}
public override void WriteObject(object graph, ODataMessageWriter messageWriter, ODataSerializerWriteContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
messageWriter.WriteEntityReferenceLink(new ODataEntityReferenceLink {
Url = graph as Uri
});
}
private void WriteEntry(object graph, IEnumerable <ODataProperty> propertyBag, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
IEdmEntityType entityType = _edmEntityTypeReference.EntityDefinition();
EntityInstanceContext entityInstanceContext = new EntityInstanceContext(SerializerProvider.EdmModel, writeContext.EntitySet, entityType, writeContext.UrlHelper, graph);
ODataEntry entry = new ODataEntry
{
TypeName = _edmEntityTypeReference.FullName(),
Properties = propertyBag,
};
if (writeContext.EntitySet != null)
{
IEntitySetLinkBuilder linkBuilder = SerializerProvider.EdmModel.GetEntitySetLinkBuilder(writeContext.EntitySet);
string idLink = linkBuilder.BuildIdLink(entityInstanceContext);
if (idLink != null)
{
entry.Id = idLink;
}
Uri readLink = linkBuilder.BuildReadLink(entityInstanceContext);
if (readLink != null)
{
entry.ReadLink = readLink;
}
Uri editLink = linkBuilder.BuildEditLink(entityInstanceContext);
if (editLink != null)
{
entry.EditLink = editLink;
}
}
writer.WriteStart(entry);
WriteNavigationLinks(entityInstanceContext, writer, writeContext);
writer.WriteEnd();
}
/// <inheritdoc/>
public override void WriteObject(object graph, ODataMessageWriter messageWriter, ODataSerializerWriteContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
ODataCollectionWriter writer = messageWriter.CreateODataCollectionWriter();
writer.WriteStart(
new ODataCollectionStart
{
Name = writeContext.ResponseContext.ServiceOperationName
});
ODataProperty property = CreateProperty(graph, writeContext.ResponseContext.ServiceOperationName, writeContext);
if (property != null)
{
ODataCollectionValue collectionValue = property.Value as ODataCollectionValue;
foreach (object item in collectionValue.Items)
{
writer.WriteItem(item);
}
writer.WriteEnd();
writer.Flush();
}
}
public override void WriteObject(object graph, ODataMessageWriter messageWriter, ODataSerializerWriteContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
ODataWriter writer = messageWriter.CreateODataEntryWriter();
WriteObjectInline(graph, writer, writeContext);
writer.Flush();
}
public override ODataProperty CreateProperty(object graph, string elementName, ODataSerializerWriteContext writeContext)
{
if (String.IsNullOrWhiteSpace(elementName))
{
throw Error.ArgumentNullOrEmpty("elementName");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
List <ODataProperty> propertyCollection = null;
if (graph != null)
{
propertyCollection = new List <ODataProperty>();
foreach (IEdmProperty property in _edmComplexType.ComplexDefinition().Properties())
{
IEdmTypeReference propertyType = property.Type;
ODataSerializer propertySerializer = SerializerProvider.GetEdmTypeSerializer(propertyType);
if (propertySerializer == null)
{
throw Error.NotSupported("Type {0} is not a serializable type", propertyType.FullName());
}
// TODO 453795: [OData]Cleanup reflection code in the ODataFormatter.
object propertyValue = graph.GetType().GetProperty(property.Name).GetValue(graph, index: null);
propertyCollection.Add(propertySerializer.CreateProperty(propertyValue, property.Name, writeContext));
}
}
if (propertyCollection != null)
{
return(new ODataProperty()
{
Name = elementName,
Value = new ODataComplexValue()
{
Properties = propertyCollection,
TypeName = _edmComplexType.FullName()
}
});
}
else
{
return(null);
}
}
/// <inheritdoc/>
public override ODataProperty CreateProperty(object graph, string elementName, ODataSerializerWriteContext writeContext)
{
if (String.IsNullOrWhiteSpace(elementName))
{
throw Error.ArgumentNullOrEmpty("elementName");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
IEnumerable enumerable = graph as IEnumerable;
if (enumerable != null)
{
ArrayList valueCollection = new ArrayList();
IEdmTypeReference itemType = _edmCollectionType.ElementType();
ODataSerializer itemSerializer = SerializerProvider.GetEdmTypeSerializer(itemType);
if (itemSerializer == null)
{
throw Error.NotSupported(SRResources.TypeCannotBeSerialized, itemType.FullName(), typeof(ODataMediaTypeFormatter).Name);
}
foreach (object item in enumerable)
{
valueCollection.Add(itemSerializer.CreateProperty(item, ODataFormatterConstants.Element, writeContext).Value);
}
// 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.
// Also, note that TypeName is an optional property for ODataCollectionValue
return(new ODataProperty()
{
Name = elementName, Value = new ODataCollectionValue {
Items = valueCollection
}
});
}
return(null);
}
private void WriteNavigationLinks(EntityInstanceContext context, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
foreach (IEdmNavigationProperty navProperty in _edmEntityTypeReference.NavigationProperties())
{
IEdmTypeReference propertyType = navProperty.Type;
object propertyValue = context.EntityInstance.GetType().GetProperty(navProperty.Name).GetValue(context.EntityInstance, index: null);
if (writeContext.EntitySet != null)
{
IEdmEntitySet currentEntitySet = writeContext.EntitySet.FindNavigationTarget(navProperty);
IEntitySetLinkBuilder linkBuilder = SerializerProvider.EdmModel.GetEntitySetLinkBuilder(writeContext.EntitySet);
ODataNavigationLink navigationLink = new ODataNavigationLink
{
IsCollection = propertyType.IsCollection(),
Name = navProperty.Name,
Url = linkBuilder.BuildNavigationLink(context, navProperty)
};
ODataQueryProjectionNode expandNode = null;
if (writeContext.CurrentProjectionNode != null)
{
expandNode = writeContext.CurrentProjectionNode.Expands.FirstOrDefault(p => p.Name == navProperty.Name);
}
if (expandNode != null && propertyValue != null)
{
writer.WriteStart(navigationLink);
ODataSerializer serializer = SerializerProvider.GetEdmTypeSerializer(propertyType);
if (serializer == null)
{
throw Error.NotSupported(SRResources.TypeCannotBeSerialized, navProperty.Type.FullName(), typeof(ODataMediaTypeFormatter).Name);
}
ODataSerializerWriteContext childWriteContext = new ODataSerializerWriteContext(writeContext.ResponseContext);
childWriteContext.UrlHelper = writeContext.UrlHelper;
childWriteContext.EntitySet = currentEntitySet;
childWriteContext.RootProjectionNode = writeContext.RootProjectionNode;
childWriteContext.CurrentProjectionNode = expandNode;
serializer.WriteObjectInline(propertyValue, writer, childWriteContext);
writer.WriteEnd();
}
else if (!writeContext.IsRequest)
{
// delayed links cannot be written on requests
writer.WriteStart(navigationLink);
writer.WriteEnd();
}
}
}
}
public override void WriteObject(object graph, ODataMessageWriter messageWriter, ODataSerializerWriteContext 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();
}
private IEnumerable<ODataProperty> CreatePropertyBag(object graph, ODataSerializerWriteContext writeContext)
{
IEnumerable<IEdmStructuralProperty> selectProperties;
if (writeContext.CurrentProjectionNode != null && writeContext.CurrentProjectionNode.Selects.Any())
{
selectProperties = _edmEntityTypeReference
.StructuralProperties()
.Where(p => writeContext.CurrentProjectionNode.Selects.Any(node => node.Name == p.Name));
}
else
{
selectProperties = _edmEntityTypeReference.StructuralProperties();
}
List<ODataProperty> properties = new List<ODataProperty>();
foreach (IEdmStructuralProperty property in selectProperties)
{
ODataSerializer serializer = SerializerProvider.GetEdmTypeSerializer(property.Type);
if (serializer == null)
{
throw Error.NotSupported(SRResources.TypeCannotBeSerialized, property.Type.FullName(), typeof(ODataMediaTypeFormatter).Name);
}
object propertyValue = graph.GetType().GetProperty(property.Name).GetValue(graph, index: null);
properties.Add(serializer.CreateProperty(propertyValue, property.Name, writeContext));
}
return properties;
}
/// <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="writer">The <see cref="ODataWriter" /> to be used for writing</param>
/// <param name="writeContext">The <see cref="ODataSerializerWriteContext" /></param>
public virtual void WriteObjectInline(object graph, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
throw Error.NotSupported(SRResources.WriteObjectInlineNotSupported, GetType().Name);
}
public override void WriteObject(object graph, ODataMessageWriter messageWriter, ODataSerializerWriteContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
if (writeContext == null)
{
throw Error.ArgumentNull("writeContext");
}
messageWriter.WriteProperty(
CreateProperty(graph, writeContext.ResponseContext.ServiceOperationName, writeContext));
}
/// <summary>
/// Create a <see cref="ODataProperty" /> that gets written as a part of an <see cref="ODataItem" /> with the given propertyName
/// and the writeContext.
/// </summary>
/// <param name="graph">The object to be written </param>
/// <param name="elementName">The name of the property to create</param>
/// <param name="writeContext">The <see cref="ODataSerializerWriteContext" /></param>
/// <returns>The <see cref="ODataProperty" /> created.</returns>
public virtual ODataProperty CreateProperty(object graph, string elementName, ODataSerializerWriteContext writeContext)
{
throw Error.NotSupported(SRResources.CreatePropertyNotSupported, GetType().Name);
}
/// <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="writer">The <see cref="ODataWriter" /> to be used for writing</param>
/// <param name="writeContext">The <see cref="ODataSerializerWriteContext" /></param>
public virtual void WriteObjectInline(object graph, ODataWriter writer, ODataSerializerWriteContext writeContext)
{
throw Error.NotSupported(SRResources.WriteObjectInlineNotSupported, GetType().Name);
}
public override ODataProperty CreateProperty(object graph, string elementName, ODataSerializerWriteContext writeContext)
{
if (String.IsNullOrWhiteSpace(elementName))
{
throw Error.ArgumentNullOrEmpty("elementName");
}
// TODO: Bug 467598: validate the type of the object being passed in here with the underlying primitive type.
return(new ODataProperty()
{
Value = graph, Name = elementName
});
}
/// <summary>
/// Create a <see cref="ODataProperty" /> that gets written as a part of an <see cref="ODataItem" /> with the given propertyName
/// and the writeContext.
/// </summary>
/// <param name="graph">The object to be written </param>
/// <param name="elementName">The name of the property to create</param>
/// <param name="writeContext">The <see cref="ODataSerializerWriteContext" /></param>
/// <returns>The <see cref="ODataProperty" /> created.</returns>
public virtual ODataProperty CreateProperty(object graph, string elementName, ODataSerializerWriteContext writeContext)
{
throw Error.NotSupported(SRResources.CreatePropertyNotSupported, GetType().Name);
}
public override void WriteObject(object graph, ODataMessageWriter messageWriter, ODataSerializerWriteContext writeContext)
{
if (messageWriter == null)
{
throw Error.ArgumentNull("messageWriter");
}
messageWriter.WriteServiceDocument(graph as ODataWorkspace);
}
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);
}
}
});
}
