private DataContract ConvertMessage(MessageDescriptor messageDescriptor)
{
if (IsWellKnownType(messageDescriptor))
{
if (IsWrapperType(messageDescriptor))
{
var field = messageDescriptor.Fields[Int32Value.ValueFieldNumber];
return(_innerContractResolver.GetDataContractForType(MessageDescriptorHelpers.ResolveFieldType(field)));
}
if (messageDescriptor.FullName == Timestamp.Descriptor.FullName ||
messageDescriptor.FullName == Duration.Descriptor.FullName ||
messageDescriptor.FullName == FieldMask.Descriptor.FullName)
{
return(DataContract.ForPrimitive(messageDescriptor.ClrType, DataType.String, dataFormat: null));
}
if (messageDescriptor.FullName == Struct.Descriptor.FullName)
{
return(DataContract.ForObject(messageDescriptor.ClrType, Array.Empty <DataProperty>(), extensionDataType: typeof(Value)));
}
if (messageDescriptor.FullName == ListValue.Descriptor.FullName)
{
return(DataContract.ForArray(messageDescriptor.ClrType, typeof(Value)));
}
if (messageDescriptor.FullName == Value.Descriptor.FullName)
{
return(DataContract.ForPrimitive(messageDescriptor.ClrType, DataType.Unknown, dataFormat: null));
}
if (messageDescriptor.FullName == Any.Descriptor.FullName)
{
var anyProperties = new List <DataProperty>
{
new DataProperty("@type", typeof(string), isRequired: true)
};
return(DataContract.ForObject(messageDescriptor.ClrType, anyProperties, extensionDataType: typeof(Value)));
}
}
var properties = new List <DataProperty>();
foreach (var field in messageDescriptor.Fields.InFieldNumberOrder())
{
// Enum type will later be used to call this contract resolver.
// Register the enum type so we know to resolve its names from the descriptor.
if (field.FieldType == FieldType.Enum)
{
_enumTypeMapping.TryAdd(field.EnumType.ClrType, field.EnumType);
}
Type fieldType;
if (field.IsMap)
{
var mapFields = field.MessageType.Fields.InFieldNumberOrder();
var valueType = MessageDescriptorHelpers.ResolveFieldType(mapFields[1]);
fieldType = typeof(IDictionary <,>).MakeGenericType(typeof(string), valueType);
}
else if (field.IsRepeated)
{
fieldType = typeof(IList <>).MakeGenericType(MessageDescriptorHelpers.ResolveFieldType(field));
}
else
{
fieldType = MessageDescriptorHelpers.ResolveFieldType(field);
}
properties.Add(new DataProperty(field.JsonName, fieldType));
}
var schema = DataContract.ForObject(messageDescriptor.ClrType, properties: properties);
return(schema);
}
private static ApiDescription CreateApiDescription(RouteEndpoint routeEndpoint, HttpRule httpRule, MethodDescriptor methodDescriptor, string pattern, string verb)
{
var apiDescription = new ApiDescription();
apiDescription.HttpMethod = verb;
apiDescription.ActionDescriptor = new ActionDescriptor
{
RouteValues = new Dictionary <string, string>
{
// Swagger uses this to group endpoints together.
// Group methods together using the service name.
["controller"] = methodDescriptor.Service.FullName
}
};
apiDescription.RelativePath = pattern.TrimStart('/');
apiDescription.SupportedRequestFormats.Add(new ApiRequestFormat {
MediaType = "application/json"
});
apiDescription.SupportedResponseTypes.Add(new ApiResponseType
{
ApiResponseFormats = { new ApiResponseFormat {
MediaType = "application/json"
} },
ModelMetadata = new GrpcModelMetadata(ModelMetadataIdentity.ForType(methodDescriptor.OutputType.ClrType)),
StatusCode = 200
});
var routeParameters = ServiceDescriptorHelpers.ResolveRouteParameterDescriptors(routeEndpoint.RoutePattern, methodDescriptor.InputType);
foreach (var routeParameter in routeParameters)
{
var field = routeParameter.Value.Last();
apiDescription.ParameterDescriptions.Add(new ApiParameterDescription
{
Name = routeParameter.Key,
ModelMetadata = new GrpcModelMetadata(ModelMetadataIdentity.ForType(MessageDescriptorHelpers.ResolveFieldType(field))),
Source = BindingSource.Path,
DefaultValue = string.Empty
});
}
ServiceDescriptorHelpers.ResolveBodyDescriptor(httpRule.Body, methodDescriptor, out var bodyDescriptor, out _, out _);
if (bodyDescriptor != null)
{
apiDescription.ParameterDescriptions.Add(new ApiParameterDescription
{
Name = "Input",
ModelMetadata = new GrpcModelMetadata(ModelMetadataIdentity.ForType(bodyDescriptor.ClrType)),
Source = BindingSource.Body
});
}
return(apiDescription);
}
private static ApiDescription CreateApiDescription(RouteEndpoint routeEndpoint, HttpRule httpRule, MethodDescriptor methodDescriptor, string pattern, string verb)
{
var apiDescription = new ApiDescription();
apiDescription.HttpMethod = verb;
apiDescription.ActionDescriptor = new ActionDescriptor
{
RouteValues = new Dictionary <string, string?>
{
// Swagger uses this to group endpoints together.
// Group methods together using the service name.
["controller"] = methodDescriptor.Service.FullName
},
EndpointMetadata = routeEndpoint.Metadata.ToList()
};
apiDescription.RelativePath = pattern.TrimStart('/');
apiDescription.SupportedRequestFormats.Add(new ApiRequestFormat {
MediaType = "application/json"
});
apiDescription.SupportedResponseTypes.Add(new ApiResponseType
{
ApiResponseFormats = { new ApiResponseFormat {
MediaType = "application/json"
} },
ModelMetadata = new GrpcModelMetadata(ModelMetadataIdentity.ForType(methodDescriptor.OutputType.ClrType)),
StatusCode = 200
});
var explorerSettings = routeEndpoint.Metadata.GetMetadata <ApiExplorerSettingsAttribute>();
if (explorerSettings != null)
{
apiDescription.GroupName = explorerSettings.GroupName;
}
var methodMetadata = routeEndpoint.Metadata.GetMetadata <GrpcMethodMetadata>() !;
var routeParameters = ServiceDescriptorHelpers.ResolveRouteParameterDescriptors(routeEndpoint.RoutePattern, methodDescriptor.InputType);
foreach (var routeParameter in routeParameters)
{
var field = routeParameter.Value.Last();
var parameterName = ServiceDescriptorHelpers.FormatUnderscoreName(field.Name, pascalCase: true, preservePeriod: false);
var propertyInfo = field.ContainingType.ClrType.GetProperty(parameterName);
// If from a property, create model as property to get its XML comments.
var identity = propertyInfo != null
? ModelMetadataIdentity.ForProperty(propertyInfo, MessageDescriptorHelpers.ResolveFieldType(field), field.ContainingType.ClrType)
: ModelMetadataIdentity.ForType(MessageDescriptorHelpers.ResolveFieldType(field));
apiDescription.ParameterDescriptions.Add(new ApiParameterDescription
{
Name = routeParameter.Key,
ModelMetadata = new GrpcModelMetadata(identity),
Source = BindingSource.Path,
DefaultValue = string.Empty
});
}
var bodyDescriptor = ServiceDescriptorHelpers.ResolveBodyDescriptor(httpRule.Body, methodMetadata.ServiceType, methodDescriptor);
if (bodyDescriptor != null)
{
// If from a property, create model as property to get its XML comments.
var identity = bodyDescriptor.PropertyInfo != null
? ModelMetadataIdentity.ForProperty(bodyDescriptor.PropertyInfo, bodyDescriptor.Descriptor.ClrType, bodyDescriptor.PropertyInfo.DeclaringType !)
: ModelMetadataIdentity.ForType(bodyDescriptor.Descriptor.ClrType);
// Or if from a parameter, create model as parameter to get its XML comments.
var parameterDescriptor = bodyDescriptor.ParameterInfo != null
? new ControllerParameterDescriptor {
ParameterInfo = bodyDescriptor.ParameterInfo
}
: null;
apiDescription.ParameterDescriptions.Add(new ApiParameterDescription
{
Name = "Input",
ModelMetadata = new GrpcModelMetadata(identity),
Source = BindingSource.Body,
ParameterDescriptor = parameterDescriptor !
});
