public void OnReceive(IConnectionChannel channel, IConnectionSession session, byte[] bytes)
{
var factory = channel.Factory;
var dispatcher = channel.Dispatcher;
string crid = null;
try
{
var message = Encoding.UTF8.GetString(bytes);
MessageLogger.LogDebug($"Received: {message}");
var isError = false;
var wrapper = factory.DeserializeMessage(message, out crid, ref isError);
if (isError)
{
return;
}
if (!dispatcher.Dispatch(session, wrapper, (r, rc) => channel.Send(session, new ResponseMessage(r, r.GetType().Name, crid, (byte)rc))))
{
channel.SendError(session, crid);
}
}
catch (Exception e)
{
channel.SendError(session, crid);
Logger.Log("ConnectionService ex:", e);
}
}
// TODO why here ?
private void SendSignedNewLedgerNotification(IConnectionSession session)
{
var signedLedger = LedgerService.LedgerManager.GetSignedLedger();
var notification = NotificationHelper.CreateSignedNewLedgerNotification(signedLedger);
ConnectionService.BlockchainChannel.Send(session, notification);
}
public void ShouldOpen(IConnectionSession session)
{
if (shouldOpen(session))
{
session.Session.OpenChannel(Channel);
}
}
public void Send(IConnectionSession session, NotificationMessage message)
{
var serialized = Factory.SerializeNotification(message);
messageLogger.LogDebug($"Sent: {serialized}");
var bytes = Encoding.UTF8.GetBytes(serialized);
Channel.Send(session.Session, bytes);
}
public void Send(IConnectionSession session, ErrorMessage message)
{
var responseMessage = Factory.SerializeError(message);
messageLogger.LogDebug($"Sent: {responseMessage}");
var bytes = Encoding.UTF8.GetBytes(responseMessage);
Channel.Send(session.Session, bytes);
}
void OnSessionEnded(IConnectionSession connection)
{
if (_contexts.TryRemove(connection, out IInstanceContext context))
{
this.SessionInstanceRemoved?.Invoke(this, context);
}
else
{
//TODO log info
}
}
private bool TryRequest(IConnectionSession session, long incoming, long next)
{
if (preventHeight.HasValue && preventHeight.Value == next)
{
return(false);
}
// if incoming height is next or greater than next then request next
if (next <= incoming)
{
targetHeight = incoming;
ConnectionService.BlockchainChannel.Send(session, RequestHelper.CreateGetSignedLedgerRequest(next));
logger.Log($"CatchupManager : Requesting [{next} of {incoming}] ");
preventHeight = next;
return(true);
}
return(false);
}
public SignedNewLedgerCommand(SignedNewLedger data, IConnectionSession session) : base(data)
{
this.session = session;
}
// TODO Change name
// we need to see if an incoming height is ahead of us
public bool TryProcessIncomingHeight(IConnectionSession session, long incoming)
{
return(TryRequest(session, incoming, LedgerService.LedgerManager.GetNextHeight()));
}
// TODO Change name
// after we receive a ledger and we catch up
public bool TryProcessHeight(IConnectionSession session)
{
return(TryProcessIncomingHeight(session, targetHeight));
}
public void Send(IConnectionSession session, Request request)
{
Send(session, new RequestMessage(request, request.GetType().Name, Guid.NewGuid().ToString("N")));
}
public void SendError(IConnectionSession session, string crid)
{
Send(session, new ErrorMessage(crid, (byte)ResultCode.Failed));
}