public IPromise <string> Call(RpcRoute route, string argument)
{
var message = new RpcMessage
{
Type = RpcMessageType.ActionRequest,
Id = Id(),
ControllerName = route.ControllerName,
ActionName = route.ActionName,
Data = argument,
ReturnTag = new Tag(Aos.Node.NodeId)
};
var promise = new Promise <string>();
_waitingForResult.Add(message.Id, promise);
_sender.DispatchMessage(route.TargetTag, message.ToString());
return(promise);
}
void ExecuteAction(RpcMessage message)
{
var impl = _implementationsByName[message.ControllerName];
var operation = impl.Actions[message.ActionName];
operation
.Do(message.Data)
.Then(result =>
{
var data = (result as IStringifiable)?.Stringify() ?? result.ToString();
var returnMessage = new RpcMessage()
{
Id = message.Id,
Type = RpcMessageType.ReturnedResult,
Data = data
};
_sender.DispatchMessage(message.ReturnTag, returnMessage.ToString());
});
}
public object DecodeFrame(IByteBuffer frame)
{
byte b0 = frame.ReadByte();
byte b1 = frame.ReadByte();
if (ProtocolConstants.MAGIC_CODE_BYTES[0] != b0 ||
ProtocolConstants.MAGIC_CODE_BYTES[1] != b1)
{
throw new ArgumentException("Unknown magic code: " + b0 + ", " + b1);
}
byte version = frame.ReadByte();
// TODO check version compatible here
int fullLength = frame.ReadInt();
short headLength = frame.ReadShort();
byte messageType = frame.ReadByte();
byte codecType = frame.ReadByte();
byte compressorType = frame.ReadByte();
int requestId = frame.ReadInt();
var rpcMessage = new RpcMessage
{
Id = requestId,
Codec = codecType,
Compressor = compressorType,
MessageType = messageType
};
// direct read head with zero-copy
int headMapLength = headLength - ProtocolConstants.V1_HEAD_LENGTH;
if (headMapLength > 0)
{
var map = HeadMapSerializer.getInstance().Decode(frame, headMapLength);
rpcMessage.HeadMap.PutAll(map);
}
// read body
if (messageType == ProtocolConstants.MSGTYPE_HEARTBEAT_REQUEST)
{
rpcMessage.Body = HeartbeatMessage.PING;
}
else if (messageType == ProtocolConstants.MSGTYPE_HEARTBEAT_RESPONSE)
{
rpcMessage.Body = HeartbeatMessage.PONG;
}
else
{
int bodyLength = fullLength - headLength;
if (bodyLength > 0)
{
byte[] bs = new byte[bodyLength];
frame.ReadBytes(bs);
ICompressor compressor = CompressorFactory.GetCompressor(compressorType);
bs = compressor.Decompress(bs);
ISerializer serializer = EnhancedServiceLoader.Load <ISerializer>(((SerializerType)rpcMessage.Codec).ToString());
rpcMessage.Body = serializer.Deserialize <AbstractMessage>(bs);
}
}
if (Logger().IsEnabled(LogLevel.Debug))
{
Logger().LogDebug(rpcMessage.ToString());
}
return(rpcMessage);
}
