public override bool Notify(ref PluginNotification notifyData)
{
bool result = true;
switch (notifyData.Reason)
{
case Reason.DatabaseLoaded:
// if database is loaded
if (controller != null)
{
// disconnect from TWS and reset all data
controller.Disconnect();
((IDisposable)controller).Dispose();
controller = null;
}
Workspace = notifyData.Workspace;
DatabasePath = notifyData.DatabasePath;
MainWindowHandle = notifyData.MainWnd;
AllowMixedEODIntra = Workspace.AllowMixedEODIntra != 0;
// start logging the opening of the database
LogAndMessage.Log(MessageType.Info, "Database: " + DatabasePath);
LogAndMessage.Log(MessageType.Info, "Mixed EOD/Intra: " + (Workspace.AllowMixedEODIntra != 0));
LogAndMessage.Log(MessageType.Info, "Number of bars: " + Workspace.NumBars);
LogAndMessage.Log(MessageType.Info, "Database config: " + Settings);
// create the config object
IBConfiguration = FTConfiguration.GetConfigObject(Settings);
LogAndMessage.VerboseLog = IBConfiguration.VerboseLog;
RthOnly = IBConfiguration.RthOnly;
CalcNextAutoRefreshTime();
// create new controller
connectionRetryTime = DateTime.Now.AddSeconds(ConnectionRetryInterval);
prevPluginState = IBPluginState.Disconnected;
firstConnection = true;
controller = new FTController();
// connect database to tws
controller.Connect(false);
if (rtWindowTickersBck.Count > 0)
{
for (int i = 0; i < rtWindowTickersBck.Count; i++)
{
controller.GetRecentInfo(rtWindowTickersBck[i]);
}
}
break;
// user changed the db
case Reason.DatabaseUnloaded:
// disconnect from TWS
if (controller != null)
{
controller.Disconnect();
((IDisposable)controller).Dispose();
controller = null;
}
// clean up
Workspace = new Workspace();
DatabasePath = null;
MainWindowHandle = IntPtr.Zero;
searchForm = null;
break;
// seams to be obsolete
case Reason.SettingsChanged:
break;
// user right clicks data plugin area in AB
case Reason.RightMouseClick:
if (controller != null)
{
currentSI = notifyData.CurrentSI;
if (currentSI != null)
{
currentTicker = currentSI.ShortName;
if (currentTicker.Length > 10)
{
currentTickerShortend = currentTicker.Substring(0, 7) + "...";
}
else
{
currentTickerShortend = currentTicker;
}
}
else
{
currentTicker = null;
currentTickerShortend = null;
}
}
SetContextMenuState();
ShowContextMenu(mContextMenu);
break;
default:
result = false;
break;
}
return(result);
}
/// <summary>
/// Timer event handler
/// </summary>
/// <param name="sender"></param>
/// <remarks>
/// If connection is broken, it tries to reconnect in every 30 secs.
/// If it reconnects, it starts a backfill of all tickers
/// If status is ready and autorefresh is configured, it starts the scheduled refresh
/// </remarks>
private void timer_Tick(object sender)
{
if (controller == null)
{
return;
}
// check and indicate thread entry
if (Interlocked.CompareExchange(ref inTimerTick, 1, 0) != 0)
{
return;
}
IBPluginState currPluginState = IBPluginState.Disconnected;
try
{
currPluginState = controller.GetIBPluginState();
if (currPluginState != prevPluginState)
{
LogAndMessage.Log(MessageType.Info, "Plugin status: " + currPluginState);
}
// if no connection between the data plugin and the TWS client
if (currPluginState == IBPluginState.Disconnected)
{
// if not manually disconnected, try to reconnect
if (manuallyDisconnected == false)
{
// if retry period has elapsed
if (connectionRetryTime < DateTime.Now)
{
// if connection has just got broken (prevent repeated log entries)
if (prevPluginState != IBPluginState.Disconnected)
{
LogAndMessage.LogAndQueue(MessageType.Warning, "Data plugin has been disconnected from TWS. Trying to reconnect in every " + ConnectionRetryInterval + " sec.");
}
// set new retry time and increase interval up to 30 secs
connectionRetryTime = DateTime.Now.AddSeconds(ConnectionRetryInterval);
// try to reconnect
controller.Connect(true);
}
}
}
// data plugin is connected to TWS
else
{
// reset connection retrying
connectionRetryTime = DateTime.MinValue;
// if an existing connection was disconnected
if (prevPluginState == IBPluginState.Disconnected && !firstConnection || controller.RestartStreaming)
{
LogAndMessage.LogAndQueue(MessageType.Warning, "TWS has been reconnected. Starting database refresh.");
// request refresh of all tickers, restart subscriptions, etc.
controller.RestartAfterReconnect(lastUptodateTime);
return;
}
// clear flag of first connection
firstConnection = false;
// check if it's time to run AutoRefresh
if (prevPluginState == IBPluginState.Ready) // Plugin works with up to date data
{
lastUptodateTime = DateTime.Now;
if (IBConfiguration != null && IBConfiguration.AutoRefreshEnabled && // Auto refresh is enabled
nextAutoRefreshTime < DateTime.Now) // The time of auto refresh has passed
{
DateTime refreshStartDate = DateTime.Now.Date.AddDays(-IBConfiguration.AutoRefreshDays);
LogAndMessage.LogAndQueue(MessageType.Warning, "Starting automatic database refresh (" + refreshStartDate.ToShortDateString() + ").");
controller.RefreshAllUsed(refreshStartDate);
CalcNextAutoRefreshTime();
}
}
}
}
catch (Exception ex)
{
LogAndMessage.Log(MessageType.Error, "Error in data source timer event handler: " + ex);
}
finally
{
// update plugin state
prevPluginState = currPluginState;
// indicate thread exit
Interlocked.Exchange(ref inTimerTick, 0);
}
}
public override PluginStatus GetStatus()
{
PluginStatus status = new PluginStatus();
IBPluginState ibPluginState = IBPluginState.Disconnected;
if (controller != null)
{
ibPluginState = controller.GetIBPluginState();
}
switch (ibPluginState)
{
case IBPluginState.Disconnected:
status.Status = StatusCode.SevereError;
status.Color = System.Drawing.Color.IndianRed;
status.ShortMessage = "Off-line";
break;
case IBPluginState.Busy:
status.Status = StatusCode.OK;
status.Color = System.Drawing.Color.Yellow;
status.ShortMessage = "Busy";
break;
case IBPluginState.Ready:
status.Status = StatusCode.OK;
status.Color = System.Drawing.Color.ForestGreen;
status.ShortMessage = "Ready";
break;
}
status.LongMessage = LogAndMessage.GetMessages();
// collect and display data issues
string failedTickers = controller.GetFailedTickers();
bool dataError = !string.IsNullOrEmpty(failedTickers);
if (dataError && ibPluginState != IBPluginState.Disconnected) // if disconnected, data issues are meaningless...
{
status.ShortMessage += " !";
status.Status = StatusCode.Warning;
if (string.IsNullOrEmpty(status.LongMessage))
{
status.LongMessage = "Failed tickers: " + failedTickers;
}
}
// if there is no message, we show the short message (Busy, Ok, etc)
if (string.IsNullOrEmpty(status.LongMessage))
{
status.LongMessage = status.ShortMessage;
// save as last shown message to avoid status popup
lastLongMessageText = status.ShortMessage;
}
// if new message we use a new lastLongMessageTime value to cause status popup
if (lastLongMessageText != status.LongMessage)
{
lastLongMessageText = status.LongMessage;
lastLongMessageTime = (int)DateTime.Now.TimeOfDay.TotalMilliseconds;
}
// set status and "timestamp"
status.Status = (StatusCode)((int)status.Status + lastLongMessageTime);
return(status);
}