static void Main(string[] args)
        {
            O2GSession session = null;

            try
            {
                LoginParams  loginParams  = new LoginParams(ConfigurationManager.AppSettings);
                SampleParams sampleParams = new SampleParams(ConfigurationManager.AppSettings);

                PrintSampleParams("PrintRollover", loginParams, sampleParams);

                session = O2GTransport.createSession();
                session.useTableManager(O2GTableManagerMode.Yes, null);
                SessionStatusListener statusListener = new SessionStatusListener(session, loginParams.SessionID, loginParams.Pin);
                session.subscribeSessionStatus(statusListener);
                statusListener.Reset();
                session.login(loginParams.Login, loginParams.Password, loginParams.URL, loginParams.Connection);

                O2GRolloverProvider rolloverProvider = session.getRolloverProvider();

                AutoResetEvent           autoEvent = new AutoResetEvent(false);
                RolloverProviderListener rolloverProviderListener = new RolloverProviderListener(autoEvent);

                rolloverProvider.subscribe(rolloverProviderListener);

                if (statusListener.WaitEvents() && statusListener.Connected)
                {
                    O2GTableManager       tableManager  = session.getTableManager();
                    O2GTableManagerStatus managerStatus = tableManager.getStatus();
                    while (managerStatus == O2GTableManagerStatus.TablesLoading)
                    {
                        Thread.Sleep(50);
                        managerStatus = tableManager.getStatus();
                    }

                    if (managerStatus == O2GTableManagerStatus.TablesLoadFailed)
                    {
                        throw new Exception("Cannot refresh all tables of table manager");
                    }
                    O2GAccountRow account = GetAccount(tableManager, sampleParams.AccountID);
                    if (account == null)
                    {
                        if (string.IsNullOrEmpty(sampleParams.AccountID))
                        {
                            throw new Exception("No valid accounts");
                        }
                        else
                        {
                            throw new Exception(string.Format("The account '{0}' is not valid", sampleParams.AccountID));
                        }
                    }
                    sampleParams.AccountID = account.AccountID;

                    O2GOfferRow offer = GetOffer(tableManager, sampleParams.Instrument);
                    if (offer == null)
                    {
                        throw new Exception(string.Format("The instrument '{0}' is not valid", sampleParams.Instrument));
                    }

                    if (autoEvent.WaitOne(10000)) //wait 10s
                    {
                        PrintRollover(rolloverProvider, account, offer);
                    }
                    else
                    {
                        Console.WriteLine("Waiting time expired: Rollover is not available");
                    }

                    rolloverProvider.unsubscribe(rolloverProviderListener);

                    statusListener.Reset();
                    session.logout();
                    statusListener.WaitEvents();
                }
                session.unsubscribeSessionStatus(statusListener);
            }
            catch (Exception e)
            {
                Console.WriteLine("Exception: {0}", e.ToString());
            }
            finally
            {
                if (session != null)
                {
                    session.Dispose();
                }
            }
        }