/// <summary>Reconnects the client.</summary>
/// <remarks>This method is invoked when the client has disconnected.</remarks>
/// <exception cref="AggregateException">Aggregate exception containing all exceptions occured over all reconnect attempts.</exception>
private async void OnClientDisconnected(object sender, EventArgs e)
{
this.Config.Log?.LogDebug("Attempting to reconnect, max {Attempts} times. Delay: {Delay}",
this.Config.ReconnectAttempts, this.Config.ReconnectionDelay);
bool isInfinite = this.Config.ReconnectAttempts < 0;
ICollection <Exception> exceptions = new List <Exception>(isInfinite ? 0 : this.Config.ReconnectAttempts);
for (int i = 1; isInfinite || i <= this.Config.ReconnectAttempts; i++)
{
try
{
this.Config.CancellationToken.ThrowIfCancellationRequested();
this.Config.Log?.LogTrace("Reconnection attempt {Attempt}", i);
// wait reconnection delay if any
if (this.Config.ReconnectionDelay > TimeSpan.Zero)
{
await Task.Delay(this.Config.ReconnectionDelay, this.Config.CancellationToken).ConfigureAwait(false);
}
// attempt to reconnnect unconditionally
await _client.ConnectAsync(this.Config.CancellationToken).ConfigureAwait(false);
return;
}
catch (OperationCanceledException ex)
{
exceptions.Add(ex);
break;
}
catch (Exception ex) when(
(isInfinite && ex.LogAsError(this.Config.Log, "Failed to auto-reconnect")) ||
ex.LogAsWarning(this.Config.Log, "Failed to auto-reconnect"))
{
exceptions.Add(ex);
}
}
AggregateException aggrEx = exceptions.Any() ?
new AggregateException("Error(s) occured when trying to automatically reconnect", exceptions) :
new AggregateException("Failed to reconnect, but no exceptions were thrown");
this.Config.Log?.LogCritical(aggrEx, "Failed to reconnect after {Attempts} attempts", this.Config.ReconnectAttempts > 0 ? this.Config.ReconnectAttempts.ToString() : "Infinite");
FailedToReconnect?.Invoke(this, new UnhandledExceptionEventArgs(aggrEx, true));
throw aggrEx;
}
/// <summary>Reconnects the client.</summary>
/// <remarks>This method is invoked when the client has disconnected.</remarks>
/// <exception cref="AggregateException">Aggregate exception containing all exceptions occured over all reconnect attempts.</exception>
private async void OnClientDisconnected(object sender, EventArgs e)
{
this.Config.Log?.LogDebug("Attempting to reconnect, max {Attempts} times. Delay: {Delay}",
this.Config.ReconnectAttempts, this.Config.ReconnectionDelay);
ICollection <Exception> exceptions = new List <Exception>(this.Config.ReconnectAttempts);
for (int i = 1; i <= this.Config.ReconnectAttempts; i++)
{
try
{
this.Config.Log?.LogTrace("Reconnection attempt {Attempt}", i);
// wait reconnection delay if any
if (this.Config.ReconnectionDelay > TimeSpan.Zero)
{
await Task.Delay(this.Config.ReconnectionDelay);
}
// attempt to reconnnect unconditionally
await _client.ConnectAsync(this.Config.CancellationToken).ConfigureAwait(false);
return;
}
catch (Exception ex)
{
exceptions.Add(ex);
}
}
AggregateException aggrEx = exceptions.Any() ?
new AggregateException("Error(s) occured when trying to automatically reconnect", exceptions) :
new AggregateException("Failed to reconnect, but no exceptions were thrown");
this.Config.Log?.LogError(aggrEx, "Failed to reconnect after {Attempts} attempts", this.Config.ReconnectAttempts);
FailedToReconnect?.Invoke(this, new UnhandledExceptionEventArgs(aggrEx, true));
throw aggrEx;
}