internal IEdmType ResolveExpectedTypeForReading(Type clientClrType)
{
Debug.Assert(clientClrType != null, "materializerType != null");
ClientTypeAnnotation clientTypeAnnotation = this.clientEdmModel.GetClientTypeAnnotation(clientClrType);
clientTypeAnnotation.EnsureEPMLoaded();
IEdmType clientType = clientTypeAnnotation.EdmType;
if (this.serviceModel == null)
{
return(clientType);
}
// for primitive types there is no need for the server's metadata
if (clientType.TypeKind == EdmTypeKind.Primitive)
{
return(clientType);
}
if (clientType.TypeKind == EdmTypeKind.Collection)
{
IEdmTypeReference clientEdmElementType = ((IEdmCollectionType)clientType).ElementType;
if (clientEdmElementType.IsPrimitive())
{
return(clientType);
}
var elementType = clientClrType.GetGenericArguments()[0];
var elementEdmType = this.ResolveExpectedTypeForReading(elementType);
if (elementEdmType == null)
{
// If we can't determine an expected element type, for whatever reason, then we cannot construct an expected collection type.
// This was introduced to fix SQLBU TFS Bug 1227624: Query for collection of complex values fails on JSON client when type-name resolver is not defined.
return(null);
}
return(new EdmCollectionType(elementEdmType.ToEdmTypeReference(clientEdmElementType.IsNullable)));
}
IEdmStructuredType serverType;
if (!this.TryToResolveServerType(clientTypeAnnotation, out serverType))
{
// if we don't know the server type, but do have a server model, then simply read without an expected type.
return(null);
}
return(serverType);
}
internal IEdmType ResolveWireTypeName(IEdmType expectedEdmType, string wireName)
{
Type elementType;
ClientEdmModel model = ClientEdmModel.GetModel(this.ResponseInfo.MaxProtocolVersion);
if (expectedEdmType != null)
{
ClientTypeAnnotation annotation = model.GetClientTypeAnnotation(expectedEdmType);
elementType = annotation.ElementType;
if (annotation.EdmType.TypeKind == EdmTypeKind.Primitive)
{
return(expectedEdmType);
}
}
else
{
elementType = typeof(object);
}
Type type2 = this.ResolveTypeFromName(wireName, elementType);
ClientTypeAnnotation clientTypeAnnotation = model.GetClientTypeAnnotation(model.GetOrCreateEdmType(type2));
if (clientTypeAnnotation.IsEntityType)
{
clientTypeAnnotation.EnsureEPMLoaded();
}
switch (clientTypeAnnotation.EdmType.TypeKind)
{
case EdmTypeKind.Entity:
case EdmTypeKind.Complex:
{
string key = clientTypeAnnotation.EdmType.FullName();
if (!this.edmTypeNameMap.ContainsKey(key))
{
this.edmTypeNameMap.Add(key, clientTypeAnnotation);
}
break;
}
}
return(clientTypeAnnotation.EdmType);
}
/// <summary>
/// ODL callback for client type resolution
/// </summary>
/// <param name="expectedEdmType">The expected type for the given wire name</param>
/// <param name="wireName">The name of the type from the payload</param>
/// <returns>An IEdmType</returns>
internal IEdmType ResolveWireTypeName(IEdmType expectedEdmType, string wireName)
{
// ODataLib should never pass an empty or null type name
Debug.Assert(!String.IsNullOrEmpty(wireName), "!String.IsNullOrEmpty(wireName)");
// For V3 and above, ODataLib will never call the type resolver if there is a collection
// type specified in the wire. However, in V1/V2, since there was no collection feature
// supported, it will call us with a collection wire name, but its okay to return null
// in that case, since there is no collection supported. If the user writes the type
// resolver in such a way to handle collections themselver, even then it will fail later
// in ODataLib stating collection types are not supported in V1/V2 versions.
if (expectedEdmType != null)
{
// In V1/V2, we never used to call the type resolver for primitives types.
// Instead, we just used to look at the expected property type and try to convert
// the value from the payload to the expected property type. In other words, we
// used to ignore the type name on the wire for primitive properties.
if (expectedEdmType.TypeKind == EdmTypeKind.Primitive)
{
return(expectedEdmType);
}
}
Type expectedType;
if (expectedEdmType != null)
{
ClientTypeAnnotation expectedAnnotation = this.clientEdmModel.GetClientTypeAnnotation(expectedEdmType);
Debug.Assert(expectedAnnotation != null, "expectedAnnotation != null");
expectedType = expectedAnnotation.ElementType;
}
else
{
expectedType = typeof(object);
}
// Breaking change: 353786 - we decided to validate against the resolved type if the type are not assignable.
Type resolvedType = this.ResolveTypeFromName(wireName, expectedType);
ClientTypeAnnotation resolvedTypeAnnotation = this.clientEdmModel.GetClientTypeAnnotation(this.clientEdmModel.GetOrCreateEdmType(resolvedType));
Debug.Assert(resolvedTypeAnnotation != null, "result != null -- otherwise ClientType.Create returned null");
if (resolvedTypeAnnotation.IsEntityType)
{
resolvedTypeAnnotation.EnsureEPMLoaded();
}
IEdmType clientEdmType = resolvedTypeAnnotation.EdmType;
EdmTypeKind typeKind = clientEdmType.TypeKind;
if (typeKind == EdmTypeKind.Entity || typeKind == EdmTypeKind.Complex)
{
// If the edm type name is not present in the dictionary, add it to the map
string edmTypeName = clientEdmType.FullName();
if (!this.edmTypeNameMap.ContainsKey(edmTypeName))
{
this.edmTypeNameMap.Add(edmTypeName, resolvedTypeAnnotation);
}
}
return(clientEdmType);
}