private Task SendProgressUpdate(string connectionId, StateChangeTracker tracker, object value, HubRequest request)
{
var hubResult = new HubResponse
{
State = tracker.GetChanges(),
Progress = new { I = request.Id, D = value },
// We prefix the ID here to ensure old clients treat this as a hub response
// but fail to lookup a corresponding callback and thus no-op
Id = "P|" + request.Id,
};
return(Connection.Send(connectionId, hubResult));
}
private Task ProcessResponse(StateChangeTracker tracker, object result, HubRequest request, Exception error)
{
var hubResult = new HubResponse
{
State = tracker.GetChanges(),
Result = result,
Id = request.Id,
};
if (error != null)
{
_counters.ErrorsHubInvocationTotal.Increment();
_counters.ErrorsHubInvocationPerSec.Increment();
_counters.ErrorsAllTotal.Increment();
_counters.ErrorsAllPerSec.Increment();
var hubError = error.InnerException as HubException;
if (_enableDetailedErrors || hubError != null)
{
var exception = error.InnerException ?? error;
hubResult.StackTrace = _isDebuggingEnabled ? exception.StackTrace : null;
hubResult.Error = exception.Message;
if (hubError != null)
{
hubResult.IsHubException = true;
hubResult.ErrorData = hubError.ErrorData;
}
}
else
{
hubResult.Error = String.Format(CultureInfo.CurrentCulture, Resources.Error_HubInvocationFailed, request.Hub, request.Method);
}
}
Trace.TraceVerbose("Sending hub invocation result to connection {0} using transport {1}", Transport.ConnectionId, Transport.GetType().Name);
return(Transport.Send(hubResult));
}
