private object ReadNestedResourceSetInline(ODataResourceSetWrapper resourceSetWrapper, IEdmTypeReference edmType,
ODataDeserializerContext readContext)
{
Contract.Assert(resourceSetWrapper != null);
Contract.Assert(edmType != null);
Contract.Assert(readContext != null);
ODataEdmTypeDeserializer deserializer = DeserializerProvider.GetEdmTypeDeserializer(edmType);
if (deserializer == null)
{
throw new SerializationException(Error.Format(SRResources.TypeCannotBeDeserialized, edmType.FullName()));
}
IEdmStructuredTypeReference structuredType = edmType.AsCollection().ElementType().AsStructured();
var nestedReadContext = new ODataDeserializerContext
{
Path = readContext.Path,
Model = readContext.Model,
};
if (readContext.IsUntyped)
{
if (structuredType.IsEntity())
{
nestedReadContext.ResourceType = typeof(EdmEntityObjectCollection);
}
else
{
nestedReadContext.ResourceType = typeof(EdmComplexObjectCollection);
}
}
else
{
Type clrType = EdmLibHelpers.GetClrType(structuredType, readContext.Model);
if (clrType == null)
{
throw new ODataException(
Error.Format(SRResources.MappingDoesNotContainResourceType, structuredType.FullName()));
}
nestedReadContext.ResourceType = typeof(List <>).MakeGenericType(clrType);
}
return(deserializer.ReadInline(resourceSetWrapper, edmType, nestedReadContext));
}
private void ApplyDynamicResourceSetInNestedProperty(string propertyName, object resource, IEdmStructuredTypeReference structuredType,
ODataResourceSetWrapper resourceSetWrapper, ODataDeserializerContext readContext)
{
Contract.Assert(resource != null);
Contract.Assert(readContext != null);
if (String.IsNullOrEmpty(resourceSetWrapper.ResourceSet.TypeName))
{
string message = Error.Format(SRResources.DynamicResourceSetTypeNameIsRequired, propertyName);
throw new ODataException(message);
}
string elementTypeName =
DeserializationHelpers.GetCollectionElementTypeName(resourceSetWrapper.ResourceSet.TypeName,
isNested: false);
IEdmSchemaType elementType = readContext.Model.FindDeclaredType(elementTypeName);
IEdmTypeReference edmTypeReference = elementType.ToEdmTypeReference(true);
EdmCollectionTypeReference collectionType = new EdmCollectionTypeReference(new EdmCollectionType(edmTypeReference));
ODataEdmTypeDeserializer deserializer = DeserializerProvider.GetEdmTypeDeserializer(collectionType);
if (deserializer == null)
{
throw new SerializationException(Error.Format(SRResources.TypeCannotBeDeserialized, collectionType.FullName()));
}
IEnumerable value = ReadNestedResourceSetInline(resourceSetWrapper, collectionType, readContext) as IEnumerable;
object result = value;
if (value != null)
{
if (readContext.IsUntyped)
{
result = value.ConvertToEdmObject(collectionType);
}
}
DeserializationHelpers.SetDynamicProperty(resource, structuredType, EdmTypeKind.Collection, propertyName,
result, collectionType, readContext.Model);
}
/// <summary>
/// Deserializes the given <paramref name="resourceWrapper"/> under the given <paramref name="readContext"/>.
/// </summary>
/// <param name="resourceWrapper">The OData resource to deserialize.</param>
/// <param name="structuredType">The type of the resource to deserialize.</param>
/// <param name="readContext">The deserializer context.</param>
/// <returns>The deserialized resource.</returns>
public virtual object ReadResource(ODataResourceWrapper resourceWrapper, IEdmStructuredTypeReference structuredType,
ODataDeserializerContext readContext)
{
if (resourceWrapper == null)
{
throw Error.ArgumentNull("resourceWrapper");
}
if (readContext == null)
{
throw Error.ArgumentNull("readContext");
}
if (!String.IsNullOrEmpty(resourceWrapper.Resource.TypeName) && structuredType.FullName() != resourceWrapper.Resource.TypeName)
{
// received a derived type in a base type deserializer. delegate it to the appropriate derived type deserializer.
IEdmModel model = readContext.Model;
if (model == null)
{
throw Error.Argument("readContext", SRResources.ModelMissingFromReadContext);
}
IEdmStructuredType actualType = model.FindType(resourceWrapper.Resource.TypeName) as IEdmStructuredType;
if (actualType == null)
{
throw new ODataException(Error.Format(SRResources.ResourceTypeNotInModel, resourceWrapper.Resource.TypeName));
}
if (actualType.IsAbstract)
{
string message = Error.Format(SRResources.CannotInstantiateAbstractResourceType, resourceWrapper.Resource.TypeName);
throw new ODataException(message);
}
IEdmTypeReference actualStructuredType;
IEdmEntityType actualEntityType = actualType as IEdmEntityType;
if (actualEntityType != null)
{
actualStructuredType = new EdmEntityTypeReference(actualEntityType, isNullable: false);
}
else
{
actualStructuredType = new EdmComplexTypeReference(actualType as IEdmComplexType, isNullable: false);
}
ODataEdmTypeDeserializer deserializer = DeserializerProvider.GetEdmTypeDeserializer(actualStructuredType);
if (deserializer == null)
{
throw new SerializationException(
Error.Format(SRResources.TypeCannotBeDeserialized, actualEntityType.FullName()));
}
object resource = deserializer.ReadInline(resourceWrapper, actualStructuredType, readContext);
EdmStructuredObject structuredObject = resource as EdmStructuredObject;
if (structuredObject != null)
{
structuredObject.ExpectedEdmType = structuredType.StructuredDefinition();
}
return(resource);
}
else
{
object resource = CreateResourceInstance(structuredType, readContext);
ApplyResourceProperties(resource, resourceWrapper, structuredType, readContext);
return(resource);
}
}
public override object Read(ODataMessageReader messageReader, Type type, ODataDeserializerContext readContext)
{
if (messageReader == null)
{
throw Error.ArgumentNull("messageReader");
}
IEdmAction action = GetAction(readContext);
Contract.Assert(action != null);
// 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;
IEdmOperationParameter 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 = (ODataCollectionDeserializer)DeserializerProvider.GetEdmTypeDeserializer(collectionType);
payload[parameterName] = collectionDeserializer.ReadInline(value, collectionType, readContext);
break;
case ODataParameterReaderState.Resource:
parameterName = reader.Name;
parameter = action.Parameters.SingleOrDefault(p => p.Name == parameterName);
Contract.Assert(parameter != null, String.Format(CultureInfo.InvariantCulture, "Parameter '{0}' not found.", parameterName));
Contract.Assert(parameter.Type.IsStructured());
ODataReader resourceReader = reader.CreateResourceReader();
object item = resourceReader.ReadResourceOrResourceSet();
ODataResourceDeserializer resourceDeserializer = (ODataResourceDeserializer)DeserializerProvider.GetEdmTypeDeserializer(parameter.Type);
payload[parameterName] = resourceDeserializer.ReadInline(item, parameter.Type, readContext);
break;
case ODataParameterReaderState.ResourceSet:
parameterName = reader.Name;
parameter = action.Parameters.SingleOrDefault(p => p.Name == parameterName);
Contract.Assert(parameter != null, String.Format(CultureInfo.InvariantCulture, "Parameter '{0}' not found.", parameterName));
IEdmCollectionTypeReference resourceSetType = parameter.Type as IEdmCollectionTypeReference;
Contract.Assert(resourceSetType != null);
ODataReader resourceSetReader = reader.CreateResourceSetReader();
object feed = resourceSetReader.ReadResourceOrResourceSet();
ODataResourceSetDeserializer resourceSetDeserializer = (ODataResourceSetDeserializer)DeserializerProvider.GetEdmTypeDeserializer(resourceSetType);
object result = resourceSetDeserializer.ReadInline(feed, resourceSetType, readContext);
IEdmTypeReference elementTypeReference = resourceSetType.ElementType();
Contract.Assert(elementTypeReference.IsStructured());
IEnumerable enumerable = result as IEnumerable;
if (enumerable != null)
{
if (readContext.IsUntyped)
{
payload[parameterName] = enumerable.ConvertToEdmObject(resourceSetType);
}
else
{
Type elementClrType = EdmLibHelpers.GetClrType(elementTypeReference, readContext.Model);
IEnumerable castedResult =
_castMethodInfo.MakeGenericMethod(elementClrType)
.Invoke(null, new[] { result }) as IEnumerable;
payload[parameterName] = castedResult;
}
}
break;
}
}
return(payload);
}
