private void Shutdown(O2GSession session, StatusListener statusListener,
TableListener tableListener, O2GTableManager tableManager)
{
if (tableListener != null)
{
tableListener.UnsubscribeEvents(tableManager);
}
if (statusListener != null)
{
if (session != null)
{
session.logout();
}
statusListener.WaitEvents();
}
}
private void DoWork()
{
O2GSession session = null;
O2GTableManager tableManager = null;
StatusListener statusListener = null;
TableListener tableListener = null;
bool canUnsubscribeSessionStatus = false;
try
{
session = O2GTransport.createSession();
session.useTableManager(O2GTableManagerMode.Yes, null);
var sessionId = Guid.NewGuid().ToString("N");
statusListener = new StatusListener(session, sessionId);
statusListener.OnStatus += (s, e) =>
{
var status = e.Item.ToStatus();
OnStatus?.Invoke(this, new GenericArgs <Status>(status));
if (status == Status.Disconnected)
{
OnDisconnected?.Invoke(this, EventArgs.Empty);
}
};
session.subscribeSessionStatus(statusListener);
session.login(userName, password, URL, connection.ToString());
if (statusListener.WaitEvents() && statusListener.Connected)
{
tableListener = new TableListener(testingMode);
tableListener.OnOffer += (s, e) =>
OnOffer?.Invoke(this, new GenericArgs <Offer>(e.Item));
// improve this plus get rid of response listener
tableListener.OnOfferIds += (s, e) =>
{
//var request = GetSetSubscriptionStatusRequest(session, e.Item);
//if (request == null)
// throw new Exception("Cannot create request");
//var responseListener = new ResponseListener();
//session.subscribeResponse(responseListener);
//responseListener.SetRequestID(request.RequestID);
//session.sendRequest(request);
//if (!responseListener.WaitEvents())
// throw new Exception("Response waiting timeout expired");
};
tableManager = session.getTableManager();
var managerStatus = tableManager.getStatus();
// max wait
while (managerStatus == O2GTableManagerStatus.TablesLoading)
{
Thread.Sleep(50);
managerStatus = tableManager.getStatus();
}
if (managerStatus == O2GTableManagerStatus.TablesLoadFailed)
{
throw new Exception("TableManager refresh failed!");
}
tableListener.SetSymbols(
Enum.GetValues(typeof(Symbol)).Cast <Symbol>().ToList());
tableListener.SubscribeEvents(tableManager);
O2GOffersTable offers = null;
offers = (O2GOffersTable)tableManager.getTable(O2GTableType.Offers);
tableListener.HandleOffers(offers);
cancelEvent.WaitOne();
OnCancelled?.Invoke(this, EventArgs.Empty);
}
}
catch (Exception error)
{
OnError?.Invoke(this, new GenericArgs <Exception>(error));
}
finally
{
Shutdown(session, statusListener, tableListener, tableManager);
if (canUnsubscribeSessionStatus)
{
session.unsubscribeSessionStatus(statusListener);
}
if (session != null)
{
session.Dispose();
}
}
}