/// <summary>
/// Get the client type annotation for the given name.
/// </summary>
/// <param name="edmTypeName">Name of the type.</param>
/// <returns>An instance of ClientTypeAnnotation for the type with the given name.</returns>
internal ClientTypeAnnotation GetClientTypeAnnotation(string edmTypeName)
{
Debug.Assert(WebUtil.GetCollectionItemWireTypeName(edmTypeName) == null, "This method must not be called for collections");
IEdmType result = this.clrToEdmTypeCache.Values.First(e => e.EdmType.FullName() == edmTypeName).EdmType;
Debug.Assert(result != null, "result != null");
return(this.GetClientTypeAnnotation(result));
}
/// <summary>
/// Resolves the client type that should be used for materialization.
/// </summary>
/// <param name="expectedType">Expected client clr type based on the API called.</param>
/// <param name="readerTypeName">
/// The name surfaced by the ODataLib reader.
/// If we have a server model, this will be a server type name that needs to be resolved.
/// If not, then this will already be a client type name.</param>
/// <returns>The resolved annotation for the client type to materialize into.</returns>
internal ClientTypeAnnotation ResolveTypeForMaterialization(Type expectedType, string readerTypeName)
{
// If its a collection, get the collection item name
string collectionItemTypeName = WebUtil.GetCollectionItemWireTypeName(readerTypeName);
if (collectionItemTypeName == null)
{
// Resolve the primitive type first
PrimitiveType primitiveType;
if (PrimitiveType.TryGetPrimitiveType(readerTypeName, out primitiveType))
{
return(this.clientEdmModel.GetClientTypeAnnotation(primitiveType.ClrType));
}
ClientTypeAnnotation resultType;
if (this.edmTypeNameMap.TryGetValue(readerTypeName, out resultType))
{
return(resultType);
}
if (this.serviceModel != null)
{
var resolvedType = this.ResolveTypeFromName(readerTypeName, expectedType);
return(this.clientEdmModel.GetClientTypeAnnotation(resolvedType));
}
// If there was no type name specified in the payload, then the type resolver won't be invoked
// and hence that edm type name might not be in the resolver cache. Hence look that up in the
// ClientEdmModel cache. This lookup is more expensive and is unique across the app domain for the
// given version.
return(this.clientEdmModel.GetClientTypeAnnotation(readerTypeName));
}
Type collectionImplementationType = ClientTypeUtil.GetImplementationType(expectedType, typeof(ICollection <>));
Type collectionElementType = collectionImplementationType.GetGenericArguments()[0];
// In case of collection, the expectedType might be collection of nullable types (for e.g. ICollection<int?>).
// There is no way to know the nullability from the wireTypeName (For e.g. Collection(Edm.Int32)).
// Hence in case of collections of primitives, we need to look at the element type of the expected type
// and use that to create the instance otherwise we will not be able to assign the created ICollection<>
// instance to the property on the user's entity (ICollection<int> cannot be assigned to ICollection<int?>).
// There is also no need to invoke the resolver for primitives, so we just use the element type.
if (!PrimitiveType.IsKnownType(collectionElementType))
{
collectionElementType = this.ResolveTypeForMaterialization(collectionElementType, collectionItemTypeName).ElementType;
}
Type clrCollectionType = WebUtil.GetBackingTypeForCollectionProperty(expectedType);
return(this.clientEdmModel.GetClientTypeAnnotation(clrCollectionType));
}