/// <summary>
/// Attempts to create a communication connection.
/// </summary>
/// <param name="exception">Returns an <see cref="Exception"/> if anything should go wrong in the attempt.</param>
/// <returns>The state of the channel's connection.</returns>
protected override bool OnOpen(out Exception exception)
{
exception = null;
bool result = false;
if (_Factory == null)
{
try
{
_ClientActual = new ClientActual(base.ClientConfiguration,
base.TransportController,
new Action <MessageEventArgs>((e) =>
{
// OnSendMessage
base.SendMessageOnMessageBus(e);
}),
new Action(() =>
{
// OnCloseClient
Task.Run(() =>
{
base.Close(out Exception ex);
});
}),
new Action <int, TimeSpan>((retryCount, retryDuration) =>
{
// OnRestartClient
Task.Run(() =>
{
// close client
base.Close(out Exception exClose);
// attempt to restart client
for (int i = 0; i < retryCount; i++)
{
Threading.ThreadingHelper.Sleep(retryDuration);
var openState = base.Open(out Exception exState);
if (openState == ChannelStates.Open)
{
break;
}
}
});
}));
_Factory = new System.ServiceModel.DuplexChannelFactory <IService>(new System.ServiceModel.InstanceContext(_ClientActual),
Binding,
new System.ServiceModel.EndpointAddress(AddressUri));
_ServiceProxy = _Factory.CreateChannel();
result = true;
}
catch (Exception ex)
{
DestroyConnection();
exception = new Exception("Unable to establish connection with server at " + Address, ex);
}
}
return(result);
}
private void DestroyConnection()
{
if (_Factory != null)
{
try
{
_Factory.Close();
}
catch { _Factory.Abort(); }
((IDisposable)_Factory).Dispose();
_Factory = null;
}
_ServiceProxy = null;
_ClientActual = null;
}