/// <summary>
/// Initialize the web socket connection to the live data server
/// </summary>
public void Initialize()
{
_initialized = true;
_builder = new UriBuilder(new Uri(_liveDataUrl))
{
Port = _liveDataPort
};
_ws = new WebSocket(_builder.ToString());
var connectionRetryAttempts = 0;
var timeStamp = (int)Time.TimeStamp();
var hash = Api.CreateSecureHash(timeStamp, _token);
_ws.SetCookie(new Cookie("Timestamp", timeStamp.ToString()));
_ws.SetCookie(new Cookie("hash", hash));
_ws.SetCookie(new Cookie("uid", _userId.ToString()));
// Message received from server
_ws.OnMessage += (sender, e) =>
{
lock (_locker)
{
IEnumerable <BaseData> baseDatas = new List <BaseData>();
try
{
baseDatas = BaseData.DeserializeMessage(e.Data);
}
catch
{
Log.Error("ApiWebSocketConnection.OnMessage(): An error was received from the server: {0}", e.Data);
}
foreach (var baseData in baseDatas)
{
_baseDataFromServer.Enqueue(baseData);
}
}
};
// Error has in web socket connection
_ws.OnError += (sender, e) =>
{
Log.Error("WebSocketConnection.Initialize(): Web socket connection error: {0}", e.Message);
if (!_ws.IsAlive && connectionRetryAttempts < MaxRetryAttempts)
{
Log.Trace(
"WebSocketConnection.Initialize(): Attempting to reconnect {0}/{1}",
connectionRetryAttempts, MaxRetryAttempts);
connectionRetryAttempts++;
_ws.Connect();
}
else
{
Log.Trace(
"WebSocketConnection.Initialize(): Could not reconnect to web socket server. " +
"Closing web socket.");
if (_updateSubscriptions != null)
{
_updateSubscriptions -= UpdateSubscriptions;
}
_updateSubscriptions = null;
}
};
// Connection was closed
_ws.OnClose += (sender, e) =>
{
Log.Trace(
"WebSocketConnection.Initialize(): Web socket connection closed: {0}, {1}",
e.Code, e.Reason);
if (!_ws.IsAlive && connectionRetryAttempts < MaxRetryAttempts && e.Code == (ushort)CloseStatusCode.Abnormal)
{
Log.Error(
"WebSocketConnection.Initialize(): Web socket was closed abnormally. " +
"Attempting to reconnect {0}/{1}",
connectionRetryAttempts, MaxRetryAttempts);
connectionRetryAttempts++;
_ws.Connect();
}
else
{
Log.Trace(
"WebSocketConnection.Initialize(): Could not reconnect to web socket server. " +
"Closing web socket.");
if (_updateSubscriptions != null)
{
_updateSubscriptions -= UpdateSubscriptions;
}
_updateSubscriptions = null;
}
};
// Connection opened
_ws.OnOpen += (sender, e) =>
{
SendSubscription();
connectionRetryAttempts = 0;
};
_updateSubscriptions += UpdateSubscriptions;
_ws.Connect();
}
