/// <summary>
/// Deserializes the given <paramref name="complexValue"/> under the given <paramref name="readContext"/>.
/// </summary>
/// <param name="complexValue">The complex value to deserialize.</param>
/// <param name="complexType">The EDM type of the complex value to read.</param>
/// <param name="readContext">The deserializer context.</param>
/// <returns>The deserialized complex value.</returns>
public virtual object ReadComplexValue(ODataComplexValue complexValue, IEdmComplexTypeReference complexType,
ODataDeserializerContext readContext)
{
if (complexValue == null)
{
throw Error.ArgumentNull("complexValue");
}
if (readContext == null)
{
throw Error.ArgumentNull("readContext");
}
if (readContext.Model == null)
{
throw Error.Argument("readContext", SRResources.ModelMissingFromReadContext);
}
object complexResource = CreateResource(complexType, readContext);
foreach (ODataProperty complexProperty in complexValue.Properties)
{
DeserializationHelpers.ApplyProperty(complexProperty, complexType, complexResource, DeserializerProvider, readContext);
}
return complexResource;
}
public void ReadJsonLight()
{
// Arrange
var deserializer = new ODataEntityReferenceLinkDeserializer();
MockODataRequestMessage requestMessage = new MockODataRequestMessage();
ODataMessageWriterSettings writerSettings = new ODataMessageWriterSettings();
writerSettings.SetContentType(ODataFormat.Json);
IEdmModel model = CreateModel();
ODataMessageWriter messageWriter = new ODataMessageWriter(requestMessage, writerSettings, model);
messageWriter.WriteEntityReferenceLink(new ODataEntityReferenceLink { Url = new Uri("http://localhost/samplelink") });
ODataMessageReader messageReader = new ODataMessageReader(new MockODataRequestMessage(requestMessage),
new ODataMessageReaderSettings(), model);
IEdmNavigationProperty navigationProperty = GetNavigationProperty(model);
ODataDeserializerContext context = new ODataDeserializerContext
{
Path = new ODataPath(new NavigationPathSegment(navigationProperty))
};
// Act
Uri uri = deserializer.Read(messageReader, context) as Uri;
// Assert
Assert.NotNull(uri);
Assert.Equal("http://localhost/samplelink", uri.AbsoluteUri);
}
/// <inheritdoc />
public sealed override object ReadInline(object item, IEdmTypeReference edmType, ODataDeserializerContext readContext)
{
if (item == null)
{
throw Error.ArgumentNull("item");
}
if (edmType == null)
{
throw Error.ArgumentNull("edmType");
}
if (!edmType.IsEntity())
{
throw Error.Argument("edmType", SRResources.ArgumentMustBeOfType, EdmTypeKind.Entity);
}
ODataEntryWithNavigationLinks entryWrapper = item as ODataEntryWithNavigationLinks;
if (entryWrapper == null)
{
throw Error.Argument("item", SRResources.ArgumentMustBeOfType, typeof(ODataEntry).Name);
}
// Recursion guard to avoid stack overflows
RuntimeHelpers.EnsureSufficientExecutionStack();
return ReadEntry(entryWrapper, edmType.AsEntity(), readContext);
}
internal static void ApplyProperty(ODataProperty property, IEdmStructuredTypeReference resourceType, object resource,
ODataDeserializerProvider deserializerProvider, ODataDeserializerContext readContext)
{
IEdmProperty edmProperty = resourceType.FindProperty(property.Name);
string propertyName = property.Name;
IEdmTypeReference propertyType = edmProperty != null ? edmProperty.Type : null; // open properties have null values
EdmTypeKind propertyKind;
object value = ConvertValue(property.Value, ref propertyType, deserializerProvider, readContext, out propertyKind);
if (propertyKind == EdmTypeKind.Collection)
{
SetCollectionProperty(resource, edmProperty, value);
}
else
{
if (propertyKind == EdmTypeKind.Primitive && !readContext.IsUntyped)
{
value = EdmPrimitiveHelpers.ConvertPrimitiveValue(value, GetPropertyType(resource, propertyName));
}
SetProperty(resource, propertyName, value);
}
}
internal static void RecurseEnter(ODataDeserializerContext readContext)
{
if (!readContext.IncrementCurrentReferenceDepth())
{
throw Error.InvalidOperation(SRResources.RecursionLimitExceeded);
}
}
/// <inheritdoc />
public override object Read(ODataMessageReader messageReader, Type type, ODataDeserializerContext readContext)
{
if (messageReader == null)
{
throw Error.ArgumentNull("messageReader");
}
if (readContext == null)
{
throw Error.ArgumentNull("readContext");
}
IEdmNavigationProperty navigationProperty = GetNavigationProperty(readContext.Path);
if (navigationProperty == null)
{
throw new SerializationException(SRResources.NavigationPropertyMissingDuringDeserialization);
}
ODataEntityReferenceLink entityReferenceLink = messageReader.ReadEntityReferenceLink(navigationProperty);
if (entityReferenceLink != null)
{
return ResolveContentId(entityReferenceLink.Url, readContext);
}
return null;
}
/// <inheritdoc />
public override object Read(ODataMessageReader messageReader, Type type, ODataDeserializerContext readContext)
{
if (messageReader == null)
{
throw Error.ArgumentNull("messageReader");
}
IEdmTypeReference edmType = readContext.GetEdmType(type);
Contract.Assert(edmType != null);
if (!edmType.IsCollection())
{
throw Error.Argument("type", SRResources.ArgumentMustBeOfType, EdmTypeKind.Collection);
}
IEdmCollectionTypeReference collectionType = edmType.AsCollection();
IEdmTypeReference elementType = collectionType.ElementType();
IEnumerable result = ReadInline(ReadCollection(messageReader, elementType), edmType, readContext) as IEnumerable;
if (result != null && readContext.IsUntyped && elementType.IsComplex())
{
EdmComplexObjectCollection complexCollection = new EdmComplexObjectCollection(collectionType);
foreach (EdmComplexObject complexObject in result)
{
complexCollection.Add(complexObject);
}
return complexCollection;
}
return result;
}
internal static void ApplyProperty(ODataProperty property, IEdmStructuredTypeReference resourceType, object resource, ODataDeserializerProvider deserializerProvider, ODataDeserializerContext readContext)
{
IEdmProperty edmProperty = resourceType.FindProperty(property.Name);
string propertyName = property.Name;
IEdmTypeReference propertyType = edmProperty != null ? edmProperty.Type : null; // open properties have null values
// If we are in patch mode and we are deserializing an entity object then we are updating Delta<T> and not T.
bool isDelta = readContext.IsPatchMode && resourceType.IsEntity();
EdmTypeKind propertyKind;
object value = ConvertValue(property.Value, ref propertyType, deserializerProvider, readContext, out propertyKind);
if (propertyKind == EdmTypeKind.Collection)
{
SetCollectionProperty(resource, propertyName, isDelta, value);
}
else
{
if (propertyKind == EdmTypeKind.Primitive)
{
value = EdmPrimitiveHelpers.ConvertPrimitiveValue(value, GetPropertyType(resource, propertyName, isDelta));
}
SetProperty(resource, propertyName, isDelta, value);
}
}
public void Can_deserialize_payload_with_primitive_parameters()
{
string actionName = "Primitive";
int quantity = 1;
string productCode = "PCode";
string body = "{" + string.Format(@" ""Quantity"": {0} , ""ProductCode"": ""{1}"" ", quantity, productCode) + "}";
ODataMessageWrapper message = new ODataMessageWrapper(GetStringAsStream(body));
message.SetHeader("Content-Type", "application/json;odata=verbose");
IEdmModel model = GetModel();
ODataMessageReader reader = new ODataMessageReader(message as IODataRequestMessage, new ODataMessageReaderSettings(), model);
ODataActionPayloadDeserializer deserializer = new ODataActionPayloadDeserializer(new DefaultODataDeserializerProvider());
ODataPath path = CreatePath(model, actionName);
ODataDeserializerContext context = new ODataDeserializerContext { Path = path, Model = model };
ODataActionParameters payload = deserializer.Read(reader, context) as ODataActionParameters;
Assert.NotNull(payload);
Assert.Same(
model.EntityContainers().Single().FunctionImports().SingleOrDefault(f => f.Name == "Primitive"),
ODataActionPayloadDeserializer.GetFunctionImport(context));
Assert.True(payload.ContainsKey("Quantity"));
Assert.Equal(quantity, payload["Quantity"]);
Assert.True(payload.ContainsKey("ProductCode"));
Assert.Equal(productCode, payload["ProductCode"]);
}
/// <inheritdoc />
public sealed override object ReadInline(object item, IEdmTypeReference edmType, ODataDeserializerContext readContext)
{
if (readContext == null)
{
throw Error.ArgumentNull("readContext");
}
if (item == null)
{
return null;
}
ODataComplexValue complexValue = item as ODataComplexValue;
if (complexValue == null)
{
throw Error.Argument("item", SRResources.ArgumentMustBeOfType, typeof(ODataComplexValue).Name);
}
if (!edmType.IsComplex())
{
throw Error.Argument("edmType", SRResources.ArgumentMustBeOfType, EdmTypeKind.Complex);
}
// Recursion guard to avoid stack overflows
RuntimeHelpers.EnsureSufficientExecutionStack();
return ReadComplexValue(complexValue, edmType.AsComplex(), readContext);
}
/// <inheritdoc />
public sealed override object ReadInline(object item, IEdmTypeReference edmType, ODataDeserializerContext readContext)
{
if (item == null)
{
return null;
}
if (edmType == null)
{
throw Error.ArgumentNull("edmType");
}
if (!edmType.IsCollection() || !edmType.AsCollection().ElementType().IsEntity())
{
throw Error.Argument("edmType", SRResources.TypeMustBeEntityCollection, edmType.ToTraceString(), typeof(IEdmEntityType).Name);
}
IEdmEntityTypeReference elementType = edmType.AsCollection().ElementType().AsEntity();
ODataFeedWithEntries feed = item as ODataFeedWithEntries;
if (feed == null)
{
throw Error.Argument("item", SRResources.ArgumentMustBeOfType, typeof(ODataFeedWithEntries).Name);
}
// Recursion guard to avoid stack overflows
RuntimeHelpers.EnsureSufficientExecutionStack();
return ReadFeed(feed, elementType, readContext);
}
/// <inheritdoc />
public override object Read(ODataMessageReader messageReader, ODataDeserializerContext readContext)
{
if (messageReader == null)
{
throw Error.ArgumentNull("messageReader");
}
if (readContext == null)
{
throw Error.ArgumentNull("readContext");
}
if (readContext.Path == null)
{
throw Error.Argument("readContext", SRResources.ODataPathMissing);
}
IEdmEntitySet entitySet = GetEntitySet(readContext.Path);
if (entitySet == null)
{
throw new SerializationException(SRResources.EntitySetMissingDuringDeserialization);
}
ODataReader odataReader = messageReader.CreateODataEntryReader(entitySet, EntityType.EntityDefinition());
ODataEntryWithNavigationLinks topLevelEntry = ReadEntryOrFeed(odataReader) as ODataEntryWithNavigationLinks;
Contract.Assert(topLevelEntry != null);
return ReadInline(topLevelEntry, readContext);
}
public void Can_find_action(string actionName, string url)
{
ODataDeserializerContext context = new ODataDeserializerContext { Request = GetPostRequest(url), Model = GetModel() };
IEdmFunctionImport action = new ODataActionParameters().GetFunctionImport(context);
Assert.NotNull(action);
Assert.Equal(actionName, action.Name);
}
/// <summary>
/// Deserializes the given <paramref name="collectionValue"/> under the given <paramref name="readContext"/>.
/// </summary>
/// <param name="collectionValue">The <see cref="ODataCollectionValue"/> to deserialize.</param>
/// <param name="readContext">The deserializer context.</param>
/// <returns>The deserialized collection.</returns>
public virtual IEnumerable ReadCollectionValue(ODataCollectionValue collectionValue, ODataDeserializerContext readContext)
{
if (collectionValue == null)
{
throw Error.ArgumentNull("collectionValue");
}
ODataEdmTypeDeserializer deserializer = DeserializerProvider.GetEdmTypeDeserializer(ElementType);
if (deserializer == null)
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeDeserialized, ElementType.FullName(), typeof(ODataMediaTypeFormatter).Name));
}
foreach (object entry in collectionValue.Items)
{
if (ElementType.IsPrimitive())
{
yield return entry;
}
else
{
yield return deserializer.ReadInline(entry, readContext);
}
}
}
public void Can_deserialize_payload_with_complex_parameters()
{
string actionName = "Complex";
string body = @"{ ""Quantity"": 1 , ""Address"": { ""StreetAddress"":""1 Microsoft Way"", ""City"": ""Redmond"", ""State"": ""WA"", ""ZipCode"": 98052 } }";
ODataMessageWrapper message = new ODataMessageWrapper(GetStringAsStream(body));
message.SetHeader("Content-Type", "application/json;odata=verbose");
IEdmModel model = GetModel();
ODataMessageReader reader = new ODataMessageReader(message as IODataRequestMessage, new ODataMessageReaderSettings(), model);
ODataActionPayloadDeserializer deserializer = new ODataActionPayloadDeserializer(typeof(ODataActionParameters), new DefaultODataDeserializerProvider(model));
string url = "http://server/service/Customers(10)/" + actionName;
HttpRequestMessage request = GetPostRequest(url);
ODataDeserializerContext context = new ODataDeserializerContext { Request = request, Model = model };
ODataActionParameters payload = deserializer.Read(reader, context) as ODataActionParameters;
Assert.NotNull(payload);
Assert.Same(model.EntityContainers().Single().FunctionImports().SingleOrDefault(f => f.Name == "Complex"), payload.GetFunctionImport(context));
Assert.True(payload.ContainsKey("Quantity"));
Assert.Equal(1, payload["Quantity"]);
Assert.True(payload.ContainsKey("Address"));
MyAddress address = payload["Address"] as MyAddress;
Assert.NotNull(address);
Assert.Equal("1 Microsoft Way", address.StreetAddress);
Assert.Equal("Redmond", address.City);
Assert.Equal("WA", address.State);
Assert.Equal(98052, address.ZipCode);
}
/// <inheritdoc />
public sealed override object ReadInline(object item, IEdmTypeReference edmType, ODataDeserializerContext readContext)
{
if (item == null)
{
return null;
}
if (edmType == null)
{
throw Error.ArgumentNull("edmType");
}
if (!edmType.IsCollection())
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeDeserialized, edmType.ToTraceString(), typeof(ODataMediaTypeFormatter)));
}
IEdmCollectionTypeReference collectionType = edmType.AsCollection();
IEdmTypeReference elementType = collectionType.ElementType();
ODataCollectionValue collection = item as ODataCollectionValue;
if (collection == null)
{
throw Error.Argument("item", SRResources.ArgumentMustBeOfType, typeof(ODataCollectionValue).Name);
}
// Recursion guard to avoid stack overflows
RuntimeHelpers.EnsureSufficientExecutionStack();
return ReadCollectionValue(collection, elementType, readContext);
}
public void Can_find_action(string actionName, string url)
{
IODataActionResolver resolver = new DefaultODataActionResolver();
ODataDeserializerContext context = new ODataDeserializerContext { Request = GetPostRequest(url), Model = GetModel() };
IEdmFunctionImport action = resolver.Resolve(context);
Assert.NotNull(action);
Assert.Equal(actionName, action.Name);
}
public void Throws_Serialization_WhenPathNotFound()
{
ODataDeserializerContext context = new ODataDeserializerContext { Path = null };
Assert.Throws<SerializationException>(() =>
{
IEdmFunctionImport action = ODataActionPayloadDeserializer.GetFunctionImport(context);
}, "The operation cannot be completed because no ODataPath is available for the request.");
}
public void Throws_InvalidOperation_when_action_not_found()
{
ODataDeserializerContext context = new ODataDeserializerContext { Request = GetPostRequest("http://server/service/MissingOperation"), Model = GetModel() };
Assert.Throws<InvalidOperationException>(() =>
{
IEdmFunctionImport action = new ODataActionParameters().GetFunctionImport(context);
}, "The request URI 'http://server/service/MissingOperation' was not recognized as an OData path.");
}
public void Throws_InvalidOperation_when_multiple_overloads_found()
{
ODataDeserializerContext context = new ODataDeserializerContext { Request = GetPostRequest("http://server/service/Vehicles/System.Web.Http.OData.Builder.TestModels.Car(8)/Park"), Model = GetModel() };
InvalidOperationException ioe = Assert.Throws<InvalidOperationException>(() =>
{
IEdmFunctionImport action = new ODataActionParameters().GetFunctionImport(context);
}, "Action resolution failed. Multiple actions matching the action identifier 'Park' were found. The matching actions are: org.odata.Container.Park, org.odata.Container.Park.");
}
public void Throws_InvalidOperation_when_action_not_found()
{
IODataActionResolver resolver = new DefaultODataActionResolver();
ODataDeserializerContext context = new ODataDeserializerContext { Request = GetPostRequest("http://server/service/MissingOperation"), Model = GetModel() };
Assert.Throws<InvalidOperationException>(() =>
{
IEdmFunctionImport action = resolver.Resolve(context);
}, "Action 'MissingOperation' was not found for RequestUri 'http://server/service/MissingOperation'.");
}
public void Throws_InvalidOperation_when_multiple_overloads_found()
{
IODataActionResolver resolver = new DefaultODataActionResolver();
ODataDeserializerContext context = new ODataDeserializerContext { Request = GetPostRequest("http://server/service/Vehicles/Container.Car(8)/Park"), Model = GetModel() };
InvalidOperationException ioe = Assert.Throws<InvalidOperationException>(() =>
{
IEdmFunctionImport action = resolver.Resolve(context);
}, "Action resolution failed. Multiple actions matching the action identifier 'Park' were found. The matching actions are: org.odata.Container.Park, org.odata.Container.Park.");
}
/// <summary>
/// Deserializes the primitive from the given <paramref name="primitiveProperty"/> under the given <paramref name="readContext"/>.
/// </summary>
/// <param name="primitiveProperty">The primitive property to deserialize.</param>
/// <param name="readContext">The deserializer context.</param>
/// <returns>The deserialized OData primitive value.</returns>
public virtual object ReadPrimitive(ODataProperty primitiveProperty, ODataDeserializerContext readContext)
{
if (primitiveProperty == null)
{
throw Error.ArgumentNull("primitiveProperty");
}
return primitiveProperty.Value;
}
public void Can_find_action(string actionName, string url)
{
IEdmModel model = GetModel();
ODataPath path = new DefaultODataPathHandler().Parse(model, url);
Assert.NotNull(path); // Guard
ODataDeserializerContext context = new ODataDeserializerContext { Path = path, Model = model };
IEdmFunctionImport action = ODataActionPayloadDeserializer.GetFunctionImport(context);
Assert.NotNull(action);
Assert.Equal(actionName, action.Name);
}
/// <inheritdoc />
public override object Read(ODataMessageReader messageReader, ODataDeserializerContext readContext)
{
if (messageReader == null)
{
throw Error.ArgumentNull("messageReader");
}
ODataCollectionValue value = ReadCollection(messageReader);
return ReadInline(value, readContext);
}
/// <inheritdoc />
public override object Read(ODataMessageReader messageReader, ODataDeserializerContext readContext)
{
if (messageReader == null)
{
throw Error.ArgumentNull("messageReader");
}
ODataProperty property = messageReader.ReadProperty();
return ReadInline(property, readContext);
}
public void ReadThrowsWhenPathIsMissing()
{
// Arrange
var deserializer = new ODataEntityReferenceLinkDeserializer();
ODataMessageReader reader = new ODataMessageReader(new MockODataRequestMessage());
ODataDeserializerContext context = new ODataDeserializerContext();
// Act & Assert
Assert.Throws<SerializationException>(() => deserializer.Read(reader, context),
"The operation cannot be completed because no ODataPath is available for the request.");
}
public void Can_find_action_overload_using_bindingparameter_type()
{
string url = "http://server/service/Vehicles(8)/System.Web.Http.OData.Builder.TestModels.Car/Wash";
ODataDeserializerContext context = new ODataDeserializerContext { Request = GetPostRequest(url), Model = GetModel() };
IEdmFunctionImport action = new ODataActionParameters().GetFunctionImport(context);
Assert.NotNull(action);
Assert.Equal("Wash", action.Name);
}
private object Convert(object value, IEdmTypeReference parameterType, ODataDeserializerContext readContext)
{
if (parameterType.IsPrimitive())
{
return value;
}
else
{
ODataEntryDeserializer deserializer = _provider.GetODataDeserializer(parameterType);
return deserializer.ReadInline(value, readContext);
}
}
public ODataEntityDeserializerTests()
{
_edmModel = EdmTestHelpers.GetModel();
IEdmEntitySet entitySet = _edmModel.EntityContainers().Single().FindEntitySet("Products");
_readContext = new ODataDeserializerContext
{
Path = new ODataPath(new EntitySetPathSegment(entitySet)),
Model = _edmModel
};
_productEdmType = _edmModel.GetEdmTypeReference(typeof(Product)).AsEntity();
_supplierEdmType = _edmModel.GetEdmTypeReference(typeof(Supplier)).AsEntity();
_deserializerProvider = new DefaultODataDeserializerProvider();
}
private static object ConvertComplexValue(ODataComplexValue complexValue, ref IEdmTypeReference propertyType, ODataDeserializerProvider deserializerProvider, ODataDeserializerContext readContext)
{
IEdmComplexTypeReference edmComplexType;
if (propertyType == null)
{
// open complex property
Contract.Assert(!String.IsNullOrEmpty(complexValue.TypeName), "ODataLib should have verified that open complex value has a type name since we provided metadata.");
IEdmType edmType = deserializerProvider.EdmModel.FindType(complexValue.TypeName);
Contract.Assert(edmType.TypeKind == EdmTypeKind.Complex, "ODataLib should have verified that complex value has a complex resource type.");
edmComplexType = new EdmComplexTypeReference(edmType as IEdmComplexType, isNullable: true);
}
else
{
edmComplexType = propertyType.AsComplex();
}
ODataEntryDeserializer deserializer = deserializerProvider.GetODataDeserializer(edmComplexType);
return(deserializer.ReadInline(complexValue, readContext));
}
private void ApplyEntryInNavigationProperty(IEdmNavigationProperty navigationProperty, object entityResource, ODataEntry entry, ODataDeserializerContext readContext)
{
Contract.Assert(navigationProperty != null && navigationProperty.PropertyKind == EdmPropertyKind.Navigation, "navigationProperty != null && navigationProperty.TypeKind == ResourceTypeKind.EntityType");
Contract.Assert(entityResource != null, "entityResource != null");
ODataEntryDeserializer deserializer = DeserializerProvider.GetODataDeserializer(navigationProperty.Type);
object value = deserializer.ReadInline(entry, readContext);
if (readContext.IsPatchMode)
{
throw Error.InvalidOperation(SRResources.CannotPatchNavigationProperties, navigationProperty.Name, navigationProperty.DeclaringEntityType().FullName());
}
SetProperty(entityResource, navigationProperty.Name, isDelta: false, value: value);
}
/// <summary>
/// Deserializes the structural properties from <paramref name="entryWrapper"/> into <paramref name="entityResource"/>.
/// </summary>
/// <param name="entityResource">The object into which the structural properties should be read.</param>
/// <param name="entryWrapper">The entry object containing the structural properties.</param>
/// <param name="entityType">The entity type of the entity resource.</param>
/// <param name="readContext">The deserializer context.</param>
public virtual void ApplyStructuralProperties(object entityResource, ODataEntryWithNavigationLinks entryWrapper,
IEdmEntityTypeReference entityType, ODataDeserializerContext readContext)
{
if (entryWrapper == null)
{
throw Error.ArgumentNull("entryWrapper");
}
foreach (ODataProperty property in entryWrapper.Entry.Properties)
{
ApplyStructuralProperty(entityResource, property, entityType, readContext);
}
}
/// <summary>
/// Deserializes the given <paramref name="structuralProperty"/> into <paramref name="entityResource"/>.
/// </summary>
/// <param name="entityResource">The object into which the structural property should be read.</param>
/// <param name="structuralProperty">The entry object containing the structural properties.</param>
/// <param name="entityType">The entity type of the entity resource.</param>
/// <param name="readContext">The deserializer context.</param>
public virtual void ApplyStructuralProperty(object entityResource, ODataProperty structuralProperty,
IEdmEntityTypeReference entityType, ODataDeserializerContext readContext)
{
if (entityResource == null)
{
throw Error.ArgumentNull("entityResource");
}
if (structuralProperty == null)
{
throw Error.ArgumentNull("structuralProperty");
}
DeserializationHelpers.ApplyProperty(structuralProperty, entityType, entityResource, DeserializerProvider, readContext);
}
private void ApplyValueProperties(ODataEntry entry, IEdmStructuredTypeReference entityType, object entityResource, ODataDeserializerContext readContext)
{
foreach (ODataProperty property in entry.Properties)
{
ApplyProperty(property, entityType, entityResource, DeserializerProvider, readContext);
}
}
internal static void ApplyProperty(ODataProperty property, IEdmStructuredTypeReference resourceType, object resource,
ODataDeserializerProvider deserializerProvider, ODataDeserializerContext readContext)
{
IEdmProperty edmProperty = resourceType.FindProperty(property.Name);
string propertyName = property.Name;
IEdmTypeReference propertyType = edmProperty != null ? edmProperty.Type : null; // open properties have null values
EdmTypeKind propertyKind;
object value = ConvertValue(property.Value, ref propertyType, deserializerProvider, readContext, out propertyKind);
if (propertyKind == EdmTypeKind.Collection)
{
SetCollectionProperty(resource, edmProperty, value);
}
else
{
if (propertyKind == EdmTypeKind.Primitive && !readContext.IsUntyped)
{
value = EdmPrimitiveHelpers.ConvertPrimitiveValue(value, GetPropertyType(resource, propertyName));
}
SetProperty(resource, propertyName, value);
}
}
/// <inheritdoc />
public sealed override object ReadInline(object item, IEdmTypeReference edmType, ODataDeserializerContext readContext)
{
if (item == null)
{
return(null);
}
if (edmType == null)
{
throw Error.ArgumentNull("edmType");
}
if (!edmType.IsCollection() || !edmType.AsCollection().ElementType().IsEntity())
{
throw Error.Argument("edmType", SRResources.TypeMustBeEntityCollection, edmType.ToTraceString(), typeof(IEdmEntityType).Name);
}
IEdmEntityTypeReference elementType = edmType.AsCollection().ElementType().AsEntity();
ODataFeedWithEntries feed = item as ODataFeedWithEntries;
if (feed == null)
{
throw Error.Argument("item", SRResources.ArgumentMustBeOfType, typeof(ODataFeedWithEntries).Name);
}
// Recursion guard to avoid stack overflows
RuntimeHelpers.EnsureSufficientExecutionStack();
return(ReadFeed(feed, elementType, readContext));
}
/// <inheritdoc />
public sealed override object ReadInline(object item, IEdmTypeReference edmType, ODataDeserializerContext readContext)
{
if (readContext == null)
{
throw Error.ArgumentNull("readContext");
}
if (item == null)
{
return(null);
}
ODataComplexValue complexValue = item as ODataComplexValue;
if (complexValue == null)
{
throw Error.Argument("item", SRResources.ArgumentMustBeOfType, typeof(ODataComplexValue).Name);
}
if (!edmType.IsComplex())
{
throw Error.Argument("edmType", SRResources.ArgumentMustBeOfType, EdmTypeKind.Complex);
}
// Recursion guard to avoid stack overflows
RuntimeHelpers.EnsureSufficientExecutionStack();
return(ReadComplexValue(complexValue, edmType.AsComplex(), readContext));
}
/// <inheritdoc />
public sealed override object ReadInline(object item, IEdmTypeReference edmType, ODataDeserializerContext readContext)
{
if (item == null)
{
return(null);
}
if (edmType == null)
{
throw Error.ArgumentNull("edmType");
}
if (!edmType.IsCollection())
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeDeserialized, edmType.ToTraceString(), typeof(ODataMediaTypeFormatter)));
}
IEdmCollectionTypeReference collectionType = edmType.AsCollection();
IEdmTypeReference elementType = collectionType.ElementType();
ODataCollectionValue collection = item as ODataCollectionValue;
if (collection == null)
{
throw Error.Argument("item", SRResources.ArgumentMustBeOfType, typeof(ODataCollectionValue).Name);
}
// Recursion guard to avoid stack overflows
RuntimeHelpers.EnsureSufficientExecutionStack();
IEnumerable result = ReadCollectionValue(collection, elementType, readContext);
if (result != null)
{
if (readContext.IsUntyped && elementType.IsComplex())
{
EdmComplexObjectCollection complexCollection = new EdmComplexObjectCollection(collectionType);
foreach (EdmComplexObject complexObject in result)
{
complexCollection.Add(complexObject);
}
return(complexCollection);
}
else
{
Type elementClrType = EdmLibHelpers.GetClrType(elementType, readContext.Model);
IEnumerable castedResult = _castMethodInfo.MakeGenericMethod(elementClrType).Invoke(null, new object[] { result }) as IEnumerable;
return(castedResult);
}
}
return(null);
}
internal static object ConvertValue(object oDataValue, ref IEdmTypeReference propertyType, ODataDeserializerProvider deserializerProvider, ODataDeserializerContext readContext, out EdmTypeKind typeKind)
{
if (oDataValue == null)
{
typeKind = EdmTypeKind.None;
return(null);
}
ODataComplexValue complexValue = oDataValue as ODataComplexValue;
if (complexValue != null)
{
typeKind = EdmTypeKind.Complex;
return(ConvertComplexValue(complexValue, ref propertyType, deserializerProvider, readContext));
}
ODataCollectionValue collection = oDataValue as ODataCollectionValue;
if (collection != null)
{
typeKind = EdmTypeKind.Collection;
Contract.Assert(propertyType != null, "Open collection properties are not supported.");
return(ConvertCollectionValue(collection, propertyType, deserializerProvider, readContext));
}
typeKind = EdmTypeKind.Primitive;
return(ConvertPrimitiveValue(oDataValue, ref propertyType));
}
internal static void ApplyProperty(ODataProperty property, IEdmStructuredTypeReference resourceType, object resource, ODataDeserializerProvider deserializerProvider, ODataDeserializerContext readContext)
{
IEdmProperty edmProperty = resourceType.FindProperty(property.Name);
string propertyName = property.Name;
IEdmTypeReference propertyType = edmProperty != null ? edmProperty.Type : null; // open properties have null values
bool isDelta = readContext.IsPatchMode && resourceType.IsEntity();
if (isDelta && resourceType.AsEntity().Key().Select(key => key.Name).Contains(propertyName))
{
// we are patching a key property.
if (readContext.PatchKeyMode == PatchKeyMode.Ignore)
{
return;
}
else if (readContext.PatchKeyMode == PatchKeyMode.Throw)
{
throw Error.InvalidOperation(SRResources.CannotPatchKeyProperty, propertyName, resourceType.FullName(), typeof(PatchKeyMode).Name, PatchKeyMode.Throw);
}
}
EdmTypeKind propertyKind;
object value = ConvertValue(property.Value, ref propertyType, deserializerProvider, readContext, out propertyKind);
if (propertyKind == EdmTypeKind.Primitive)
{
value = ConvertPrimitiveValue(value, GetPropertyType(resource, propertyName, isDelta), propertyName, resource.GetType().FullName);
}
SetProperty(resource, propertyName, isDelta, value);
}
/// <inheritdoc />
public sealed override object ReadInline(object item, IEdmTypeReference edmType, ODataDeserializerContext readContext)
{
if (item == null)
{
throw Error.ArgumentNull("item");
}
if (edmType == null)
{
throw Error.ArgumentNull("edmType");
}
if (!edmType.IsEntity())
{
throw Error.Argument("edmType", SRResources.ArgumentMustBeOfType, EdmTypeKind.Entity);
}
ODataEntryWithNavigationLinks entryWrapper = item as ODataEntryWithNavigationLinks;
if (entryWrapper == null)
{
throw Error.Argument("item", SRResources.ArgumentMustBeOfType, typeof(ODataEntry).Name);
}
// Recursion guard to avoid stack overflows
RuntimeHelpers.EnsureSufficientExecutionStack();
return(ReadEntry(entryWrapper, edmType.AsEntity(), readContext));
}
private void ApplyNavigationProperty(ODataNavigationLink navigationLink, IEdmNavigationProperty navigationProperty, object entityResource, ODataDeserializerContext readContext)
{
ODataNavigationLinkAnnotation navigationLinkAnnotation = navigationLink.GetAnnotation <ODataNavigationLinkAnnotation>();
Contract.Assert(navigationLinkAnnotation != null, "navigationLinkAnnotation != null");
Contract.Assert(navigationLink.IsCollection.HasValue, "We should know the cardinality of the navigation link by now.");
foreach (ODataItem childItem in navigationLinkAnnotation)
{
ODataEntityReferenceLink entityReferenceLink = childItem as ODataEntityReferenceLink;
if (entityReferenceLink != null)
{
// ignore links.
continue;
}
ODataFeed feed = childItem as ODataFeed;
if (feed != null)
{
ApplyFeedInNavigationProperty(navigationProperty, entityResource, feed, readContext);
continue;
}
// It must be entry by now.
ODataEntry entry = (ODataEntry)childItem;
if (entry != null)
{
ApplyEntryInNavigationProperty(navigationProperty, entityResource, entry, readContext);
}
}
}
/// <summary>
/// Deserializes the navigation properties from <paramref name="entryWrapper"/> into <paramref name="entityResource"/>.
/// </summary>
/// <param name="entityResource">The object into which the navigation properties should be read.</param>
/// <param name="entryWrapper">The entry object containing the navigation properties.</param>
/// <param name="entityType">The entity type of the entity resource.</param>
/// <param name="readContext">The deserializer context.</param>
public virtual void ApplyNavigationProperties(object entityResource, ODataEntryWithNavigationLinks entryWrapper,
IEdmEntityTypeReference entityType, ODataDeserializerContext readContext)
{
if (entryWrapper == null)
{
throw Error.ArgumentNull("entryWrapper");
}
foreach (ODataNavigationLinkWithItems navigationLink in entryWrapper.NavigationLinks)
{
ApplyNavigationProperty(entityResource, navigationLink, entityType, readContext);
}
}
/// <summary>
/// Reads an <see cref="IODataRequestMessage"/> using messageReader.
/// </summary>
/// <param name="messageReader">The messageReader to use.</param>
/// <param name="readContext">The read context.</param>
/// <returns>The deserialized object.</returns>
public virtual object Read(ODataMessageReader messageReader, ODataDeserializerContext readContext)
{
throw Error.NotSupported(SRResources.DeserializerDoesNotSupportRead, GetType().Name);
}
private static object ConvertCollectionValue(ODataCollectionValue collection, IEdmTypeReference propertyType, ODataDeserializerProvider deserializerProvider, ODataDeserializerContext readContext)
{
IEdmCollectionTypeReference collectionType = propertyType as IEdmCollectionTypeReference;
Contract.Assert(collectionType != null, "The type for collection must be a IEdmCollectionType.");
IList collectionList = CreateNewCollection(EdmLibHelpers.GetClrType(collectionType.ElementType(), deserializerProvider.EdmModel));
RecurseEnter(readContext);
Contract.Assert(collection.Items != null, "The ODataLib reader should always populate the ODataCollectionValue.Items collection.");
foreach (object odataItem in collection.Items)
{
IEdmTypeReference itemType = collectionType.ElementType();
EdmTypeKind propertyKind;
collectionList.Add(ConvertValue(odataItem, ref itemType, deserializerProvider, readContext, out propertyKind));
Contract.Assert(propertyKind != EdmTypeKind.Primitive, "no collection property support yet.");
}
RecurseLeave(readContext);
return(collectionList);
}
private static object ConvertCollectionValue(ODataCollectionValue collection, IEdmTypeReference propertyType,
ODataDeserializerProvider deserializerProvider, ODataDeserializerContext readContext)
{
IEdmCollectionTypeReference collectionType = propertyType as IEdmCollectionTypeReference;
Contract.Assert(collectionType != null, "The type for collection must be a IEdmCollectionType.");
ODataEdmTypeDeserializer deserializer = deserializerProvider.GetEdmTypeDeserializer(collectionType);
return(deserializer.ReadInline(collection, collectionType, readContext));
}
/// <summary>
/// Deserializes the item into a new object of type corresponding to <see cref="EdmType"/>.
/// </summary>
/// <param name="item">The item to deserialize.</param>
/// <param name="readContext">The <see cref="ODataDeserializerContext"/></param>
/// <returns>The deserialized object.</returns>
public virtual object ReadInline(object item, ODataDeserializerContext readContext)
{
throw Error.NotSupported(SRResources.DoesNotSupportReadInLine, GetType().Name);
}
/// <summary>
/// Deserializes the given <paramref name="feed"/> under the given <paramref name="readContext"/>.
/// </summary>
/// <param name="feed">The feed to deserialize.</param>
/// <param name="readContext">The deserializer context.</param>
/// <param name="elementType">The element type of the feed being read.</param>
/// <returns>The deserialized feed object.</returns>
public virtual IEnumerable ReadFeed(ODataFeedWithEntries feed, IEdmEntityTypeReference elementType, ODataDeserializerContext readContext)
{
ODataEdmTypeDeserializer deserializer = DeserializerProvider.GetEdmTypeDeserializer(elementType);
if (deserializer == null)
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeDeserialized, elementType.FullName(), typeof(ODataMediaTypeFormatter).Name));
}
foreach (ODataEntryWithNavigationLinks entry in feed.Entries)
{
yield return(deserializer.ReadInline(entry, elementType, readContext));
}
}
internal static void RecurseLeave(ODataDeserializerContext readContext)
{
readContext.DecrementCurrentReferenceDepth();
}
/// <inheritdoc />
public sealed override object ReadInline(object item, IEdmTypeReference edmType, ODataDeserializerContext readContext)
{
if (item == null)
{
return(null);
}
if (edmType == null)
{
throw Error.ArgumentNull("edmType");
}
if (!edmType.IsCollection())
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeDeserialized, edmType.ToTraceString(), typeof(ODataMediaTypeFormatter)));
}
IEdmCollectionTypeReference collectionType = edmType.AsCollection();
IEdmTypeReference elementType = collectionType.ElementType();
ODataCollectionValue collection = item as ODataCollectionValue;
if (collection == null)
{
throw Error.Argument("item", SRResources.ArgumentMustBeOfType, typeof(ODataCollectionValue).Name);
}
// Recursion guard to avoid stack overflows
RuntimeHelpers.EnsureSufficientExecutionStack();
return(ReadCollectionValue(collection, elementType, readContext));
}
/// <summary>
/// Creates a new instance of the backing CLR object for the given entity type.
/// </summary>
/// <param name="entityType">The EDM type of the entity to create.</param>
/// <param name="readContext">The deserializer context.</param>
/// <returns>The created CLR object.</returns>
public virtual object CreateEntityResource(IEdmEntityTypeReference entityType, ODataDeserializerContext readContext)
{
if (readContext == null)
{
throw Error.ArgumentNull("readContext");
}
if (entityType == null)
{
throw Error.ArgumentNull("entityType");
}
IEdmModel model = readContext.Model;
if (model == null)
{
throw Error.Argument("readContext", SRResources.ModelMissingFromReadContext);
}
if (readContext.IsUntyped)
{
return(new EdmEntityObject(entityType));
}
else
{
Type clrType = EdmLibHelpers.GetClrType(entityType, model);
if (clrType == null)
{
throw new ODataException(
Error.Format(SRResources.MappingDoesNotContainEntityType, entityType.FullName()));
}
if (readContext.IsDeltaOfT)
{
IEnumerable <string> structuralProperties = entityType.StructuralProperties().Select(p => p.Name);
return(Activator.CreateInstance(readContext.ResourceType, clrType, structuralProperties));
}
else
{
return(Activator.CreateInstance(clrType));
}
}
}
internal static ODataItem ReadEntryOrFeed(ODataReader odataReader, ODataDeserializerContext readContext)
{
ODataItem topLevelItem = null;
Stack <ODataItem> itemsStack = new Stack <ODataItem>();
while (odataReader.Read())
{
switch (odataReader.State)
{
case ODataReaderState.EntryStart:
ODataEntry entry = (ODataEntry)odataReader.Item;
ODataEntryAnnotation entryAnnotation = null;
if (entry != null)
{
entryAnnotation = new ODataEntryAnnotation();
entry.SetAnnotation(entryAnnotation);
}
if (itemsStack.Count == 0)
{
Contract.Assert(entry != null, "The top-level entry can never be null.");
topLevelItem = entry;
}
else
{
ODataItem parentItem = itemsStack.Peek();
ODataFeed parentFeed = parentItem as ODataFeed;
if (parentFeed != null)
{
ODataFeedAnnotation parentFeedAnnotation = parentFeed.GetAnnotation <ODataFeedAnnotation>();
Contract.Assert(parentFeedAnnotation != null, "Every feed we added to the stack should have the feed annotation on it.");
parentFeedAnnotation.Add(entry);
}
else
{
ODataNavigationLink parentNavigationLink = (ODataNavigationLink)parentItem;
ODataNavigationLinkAnnotation parentNavigationLinkAnnotation = parentNavigationLink.GetAnnotation <ODataNavigationLinkAnnotation>();
Contract.Assert(parentNavigationLinkAnnotation != null, "Every navigation link we added to the stack should have the navigation link annotation on it.");
Contract.Assert(parentNavigationLink.IsCollection == false, "Only singleton navigation properties can contain entry as their child.");
Contract.Assert(parentNavigationLinkAnnotation.Count == 0, "Each navigation property can contain only one entry as its direct child.");
parentNavigationLinkAnnotation.Add(entry);
}
}
itemsStack.Push(entry);
RecurseEnter(readContext);
break;
case ODataReaderState.EntryEnd:
Contract.Assert(itemsStack.Count > 0 && itemsStack.Peek() == odataReader.Item, "The entry which is ending should be on the top of the items stack.");
itemsStack.Pop();
RecurseLeave(readContext);
break;
case ODataReaderState.NavigationLinkStart:
ODataNavigationLink navigationLink = (ODataNavigationLink)odataReader.Item;
Contract.Assert(navigationLink != null, "Navigation link should never be null.");
navigationLink.SetAnnotation(new ODataNavigationLinkAnnotation());
Contract.Assert(itemsStack.Count > 0, "Navigation link can't appear as top-level item.");
{
ODataEntry parentEntry = (ODataEntry)itemsStack.Peek();
ODataEntryAnnotation parentEntryAnnotation = parentEntry.GetAnnotation <ODataEntryAnnotation>();
Contract.Assert(parentEntryAnnotation != null, "Every entry we added to the stack should have the entry annotation on it.");
parentEntryAnnotation.Add(navigationLink);
}
itemsStack.Push(navigationLink);
RecurseEnter(readContext);
break;
case ODataReaderState.NavigationLinkEnd:
Contract.Assert(itemsStack.Count > 0 && itemsStack.Peek() == odataReader.Item, "The navigation link which is ending should be on the top of the items stack.");
itemsStack.Pop();
RecurseLeave(readContext);
break;
case ODataReaderState.FeedStart:
ODataFeed feed = (ODataFeed)odataReader.Item;
Contract.Assert(feed != null, "Feed should never be null.");
feed.SetAnnotation(new ODataFeedAnnotation());
if (itemsStack.Count > 0)
{
ODataNavigationLink parentNavigationLink = (ODataNavigationLink)itemsStack.Peek();
Contract.Assert(parentNavigationLink != null, "this has to be an inner feed. inner feeds always have a navigation link.");
ODataNavigationLinkAnnotation parentNavigationLinkAnnotation = parentNavigationLink.GetAnnotation <ODataNavigationLinkAnnotation>();
Contract.Assert(parentNavigationLinkAnnotation != null, "Every navigation link we added to the stack should have the navigation link annotation on it.");
Contract.Assert(parentNavigationLink.IsCollection == true, "Only collection navigation properties can contain feed as their child.");
parentNavigationLinkAnnotation.Add(feed);
}
else
{
topLevelItem = feed;
}
itemsStack.Push(feed);
RecurseEnter(readContext);
break;
case ODataReaderState.FeedEnd:
Contract.Assert(itemsStack.Count > 0 && itemsStack.Peek() == odataReader.Item, "The feed which is ending should be on the top of the items stack.");
itemsStack.Pop();
RecurseLeave(readContext);
break;
case ODataReaderState.EntityReferenceLink:
ODataEntityReferenceLink entityReferenceLink = (ODataEntityReferenceLink)odataReader.Item;
Contract.Assert(entityReferenceLink != null, "Entity reference link should never be null.");
Contract.Assert(itemsStack.Count > 0, "Entity reference link should never be reported as top-level item.");
{
ODataNavigationLink parentNavigationLink = (ODataNavigationLink)itemsStack.Peek();
ODataNavigationLinkAnnotation parentNavigationLinkAnnotation = parentNavigationLink.GetAnnotation <ODataNavigationLinkAnnotation>();
Contract.Assert(parentNavigationLinkAnnotation != null, "Every navigation link we added to the stack should have the navigation link annotation on it.");
parentNavigationLinkAnnotation.Add(entityReferenceLink);
}
break;
default:
Contract.Assert(false, "We should never get here, it means the ODataReader reported a wrong state.");
break;
}
}
Contract.Assert(odataReader.State == ODataReaderState.Completed, "We should have consumed all of the input by now.");
Contract.Assert(topLevelItem != null, "A top level entry or feed should have been read by now.");
return(topLevelItem);
}
/// <inheritdoc />
public override object Read(ODataMessageReader messageReader, Type type, ODataDeserializerContext readContext)
{
if (messageReader == null)
{
throw Error.ArgumentNull("messageReader");
}
IEdmFunctionImport action = GetFunctionImport(readContext);
// Create the correct resource type;
Dictionary <string, object> payload;
if (type == typeof(ODataActionParameters))
{
payload = new ODataActionParameters();
}
else
{
payload = new ODataUntypedActionParameters(action);
}
ODataParameterReader reader = messageReader.CreateODataParameterReader(action);
while (reader.Read())
{
string parameterName = null;
IEdmFunctionParameter parameter = null;
switch (reader.State)
{
case ODataParameterReaderState.Value:
parameterName = reader.Name;
parameter = action.Parameters.SingleOrDefault(p => p.Name == parameterName);
// ODataLib protects against this but asserting just in case.
Contract.Assert(parameter != null, String.Format(CultureInfo.InvariantCulture, "Parameter '{0}' not found.", parameterName));
if (parameter.Type.IsPrimitive())
{
payload[parameterName] = reader.Value;
}
else
{
ODataEdmTypeDeserializer deserializer = DeserializerProvider.GetEdmTypeDeserializer(parameter.Type);
payload[parameterName] = deserializer.ReadInline(reader.Value, parameter.Type, readContext);
}
break;
case ODataParameterReaderState.Collection:
parameterName = reader.Name;
parameter = action.Parameters.SingleOrDefault(p => p.Name == parameterName);
// ODataLib protects against this but asserting just in case.
Contract.Assert(parameter != null, String.Format(CultureInfo.InvariantCulture, "Parameter '{0}' not found.", parameterName));
IEdmCollectionTypeReference collectionType = parameter.Type as IEdmCollectionTypeReference;
Contract.Assert(collectionType != null);
ODataCollectionValue value = ODataCollectionDeserializer.ReadCollection(reader.CreateCollectionReader());
ODataCollectionDeserializer collectionDeserializer = DeserializerProvider.GetEdmTypeDeserializer(collectionType) as ODataCollectionDeserializer;
payload[parameterName] = collectionDeserializer.ReadInline(value, collectionType, readContext);
break;
default:
break;
}
}
return(payload);
}
private void ApplyFeedInNavigationProperty(IEdmNavigationProperty navigationProperty, object entityResource, ODataFeed feed, ODataDeserializerContext readContext)
{
ODataFeedAnnotation feedAnnotation = feed.GetAnnotation <ODataFeedAnnotation>();
Contract.Assert(feedAnnotation != null, "Each feed we create should gave annotation on it.");
ODataEntryDeserializer deserializer = DeserializerProvider.GetODataDeserializer(navigationProperty.Type);
object value = deserializer.ReadInline(feed, readContext);
if (readContext.IsPatchMode)
{
throw Error.InvalidOperation(SRResources.CannotPatchNavigationProperties, navigationProperty.Name, navigationProperty.DeclaringEntityType().FullName());
}
SetCollectionProperty(entityResource, navigationProperty.Name, isDelta: false, value: value);
}
internal static object CreateResource(IEdmComplexTypeReference edmComplexType, ODataDeserializerContext readContext)
{
Contract.Assert(edmComplexType != null);
if (readContext.IsUntyped)
{
return(new EdmComplexObject(edmComplexType));
}
else
{
Type clrType = EdmLibHelpers.GetClrType(edmComplexType, readContext.Model);
if (clrType == null)
{
throw Error.InvalidOperation(SRResources.MappingDoesNotContainEntityType, edmComplexType.FullName());
}
return(Activator.CreateInstance(clrType));
}
}
private void ApplyFeedInNavigationProperty(IEdmNavigationProperty navigationProperty, object entityResource, ODataFeedWithEntries feed, ODataDeserializerContext readContext)
{
Contract.Assert(navigationProperty != null && navigationProperty.PropertyKind == EdmPropertyKind.Navigation, "navigationProperty != null && navigationProperty.TypeKind == ResourceTypeKind.EntityType");
Contract.Assert(entityResource != null, "entityResource != null");
if (readContext.IsDeltaOfT)
{
string message = Error.Format(SRResources.CannotPatchNavigationProperties, navigationProperty.Name, navigationProperty.DeclaringEntityType().FullName());
throw new ODataException(message);
}
ODataEdmTypeDeserializer deserializer = DeserializerProvider.GetEdmTypeDeserializer(navigationProperty.Type);
if (deserializer == null)
{
throw new SerializationException(Error.Format(SRResources.TypeCannotBeDeserialized, navigationProperty.Type.FullName(), typeof(ODataMediaTypeFormatter)));
}
object value = deserializer.ReadInline(feed, navigationProperty.Type, readContext);
DeserializationHelpers.SetCollectionProperty(entityResource, navigationProperty, value);
}
/// <summary>
/// Deserializes the navigation property from <paramref name="navigationLinkWrapper"/> into <paramref name="entityResource"/>.
/// </summary>
/// <param name="entityResource">The object into which the navigation property should be read.</param>
/// <param name="navigationLinkWrapper">The navigation link.</param>
/// <param name="entityType">The entity type of the entity resource.</param>
/// <param name="readContext">The deserializer context.</param>
public virtual void ApplyNavigationProperty(object entityResource, ODataNavigationLinkWithItems navigationLinkWrapper,
IEdmEntityTypeReference entityType, ODataDeserializerContext readContext)
{
if (navigationLinkWrapper == null)
{
throw Error.ArgumentNull("navigationLinkWrapper");
}
if (entityResource == null)
{
throw Error.ArgumentNull("entityResource");
}
IEdmNavigationProperty navigationProperty = entityType.FindProperty(navigationLinkWrapper.NavigationLink.Name) as IEdmNavigationProperty;
if (navigationProperty == null)
{
throw new ODataException(
Error.Format(SRResources.NavigationPropertyNotfound, navigationLinkWrapper.NavigationLink.Name, entityType.FullName()));
}
foreach (ODataItemBase childItem in navigationLinkWrapper.NestedItems)
{
ODataEntityReferenceLinkBase entityReferenceLink = childItem as ODataEntityReferenceLinkBase;
if (entityReferenceLink != null)
{
// ignore links.
continue;
}
ODataFeedWithEntries feed = childItem as ODataFeedWithEntries;
if (feed != null)
{
ApplyFeedInNavigationProperty(navigationProperty, entityResource, feed, readContext);
continue;
}
// It must be entry by now.
ODataEntryWithNavigationLinks entry = (ODataEntryWithNavigationLinks)childItem;
if (entry != null)
{
ApplyEntryInNavigationProperty(navigationProperty, entityResource, entry, readContext);
}
}
}
private void ApplyEntityProperties(object entityResource, ODataEntryWithNavigationLinks entryWrapper,
IEdmEntityTypeReference entityType, ODataDeserializerContext readContext)
{
ApplyStructuralProperties(entityResource, entryWrapper, entityType, readContext);
ApplyNavigationProperties(entityResource, entryWrapper, entityType, readContext);
}
private void ApplyNavigationProperties(ODataEntryAnnotation entryAnnotation, IEdmEntityTypeReference entityType, object entityResource, ODataDeserializerContext readContext)
{
Contract.Assert(entityType.TypeKind() == EdmTypeKind.Entity, "Only entity types can be specified for entities.");
foreach (ODataNavigationLink navigationLink in entryAnnotation)
{
IEdmNavigationProperty navigationProperty = entityType.FindProperty(navigationLink.Name) as IEdmNavigationProperty;
Contract.Assert(navigationProperty != null, "ODataLib reader should have already validated that all navigation properties are declared and none is open.");
ApplyNavigationProperty(navigationLink, navigationProperty, entityResource, readContext);
}
}