}//constructor
//
//
#endregion//Constructors
#region Public Methods
// *****************************************************************
// **** Public Methods ****
// *****************************************************************
//
//
public override void RequestStop()
{ // Request gentle shut down
QueryBuilderHubRequest e = new QueryBuilderHubRequest();
e.Request = QueryBuilderHubRequestCode.Stop;
this.HubEventEnqueue(e);
}
//
//
/// <summary>
/// Called by external thread to request that the hub thread create a
/// query to check to make sure out database has the
/// instrument details supplied
/// correctly in the database.
/// </summary>
/// <param name="instrDetails"></param>
public void RequestCheckInstrDBDetails(InstrumentDetails instrDetails)
{
QueryBuilderHubRequest e = new QueryBuilderHubRequest();
e.Request = QueryBuilderHubRequestCode.RequestCheckDBInstrDetails;
e.Data.Add(instrDetails);
this.HubEventEnqueue(e);
}
}// ProcessQueryBuildEvent()
//
//
//
/// <summary>
/// called by the hub thread to process a request to create a query for instrument details
/// </summary>
/// <param name="requestArg"></param>
private void ProcessRquestDBInstrDetails(QueryBuilderHubRequest requestArg)
{
Log.NewEntry(LogLevel.Minor, "ProcessCheckDBInstrDetails: Processing Request");
foreach (object obj in requestArg.Data)
{
InstrumentDetails instrDetails = (InstrumentDetails)obj;
// TODO CALL DB INSTRUMENT METHODS FROM HERE
}
}
//
//
//
#endregion//Private Methods
#region Hub Event Handler
// *****************************************************************
// **** Event Handlers ****
// *****************************************************************
//
protected override void HubEventHandler(EventArgs[] eArgList)
{
foreach (EventArgs e in eArgList)
{
if (e is BarEventArgs)
{ // This is a bar event. It was pushed onto me from the data hub.
if (!m_IsShuttingDown)
{
m_EventList.Enqueue((BarEventArgs)e);
}
}
else if (e is QueryBuilderHubRequest)
{ // this is an request to do something besides baring data!
QueryBuilderHubRequest requestArg = (QueryBuilderHubRequest)e;
switch (requestArg.Request)
{
case QueryBuilderHubRequestCode.Stop:
m_IsShuttingDown = true;
break;
case QueryBuilderHubRequestCode.RequestCheckDBInstrDetails:
ProcessRquestDBInstrDetails(requestArg); // not fully implemented
break;
default:
Log.NewEntry(LogLevel.Error, "HubEventHandler : QueryBuilderHub {0} not implemented", requestArg.ToString());
break;
}
}
else
{
Log.NewEntry(LogLevel.Error, "Unknown event type: {0}", e.ToString());
}
}
// Process Queries
if (m_IsShuttingDown || m_EventList.Count >= WriteBlockSize)
{
ProcessQueryBuildEvent();
}
if (m_IsShuttingDown)
{
base.Stop();
}
}//HubEventHandler()
