/// <summary>
///
/// </summary>
/// <param name="symbol">Security symbol</param>
/// <param name="exchange">Security exchange</param>
/// <param name="date">Request date</param>
public static List <Spark.Event> Execute(string symbol, string exchange, DateTime date)
{
//Connect to Spark API if required
ApiControl.Instance.Connect();
//Determine what Spark considers to be the current date
DateTime sparkDate = ApiFunctions.GetCurrentSparkDate();
Debug.WriteLine("\tCurrent Spark Date: " + date.ToShortDateString());
//Get instance to stock
Spark.Stock stock;
List <Spark.Event> result = null;
if (ApiFunctions.GetSparkStock(symbol, exchange, out stock))
{
//Request stock events
Spark.Event sparkEvent = new Spark.Event();
result = new List <Spark.Event>();
if (date == sparkDate)
{
//Wait to allow Spark API to prepare for download (it may only return a small number of events without this)
System.Threading.Thread.Sleep(1000);
//NOTE: This is only returning 1 event when requested over a mobile wireless connection. It may require more delay or some other sort of test.
//Execute query using current day request method
Debug.WriteLine("\tSpark.GetAllStockEvents(" + symbol + ")");
if (Spark.GetAllStockEvents(ref stock, ref sparkEvent))
{
while (Spark.GetNextStockEvent(ref stock, ref sparkEvent, 1000)) //Specifying 0 timeout will return events until there are no more in the queue
{
result.Add(sparkEvent);
}
}
Spark.ReleaseStockEvents(ref stock);
}
else
{
//Execute query using historical request method
Debug.WriteLine("\tSpark.GetPastStockEvents(" + symbol + ", " + date.ToShortDateString() + ")");
if (Spark.GetPastStockEvents(ref stock, ref sparkEvent, date))
{
while (Spark.GetNextPastStockEvent(ref stock, ref sparkEvent))
{
result.Add(sparkEvent);
}
}
Spark.ReleasePastStockEvents(ref stock, (DateTime)date);
}
}
return(result);
}
/// <summary>
/// Initiate data feed
/// </summary>
public override void Execute()
{
//Connect to Spark API if required
ApiControl.Instance.Connect();
//Get instance to stock
Spark.Stock stock;
if (ApiFunctions.GetSparkStock(Symbol, Exchange, out stock))
{
//Request all events for current day
Spark.Event sparkEvent = new Spark.Event();
if (Spark.GetAllStockEvents(ref stock, ref sparkEvent))
{
while (Spark.GetNextStockEvent(ref stock, ref sparkEvent, -1)) //Specifying -1 timeout will keep it waiting until end of day
{
RaiseEvent(new EventFeedArgs(sparkEvent, Spark.TimeToDateTime(sparkEvent.Time)));
}
}
//Release memory at end of day
Spark.ReleaseStockEvents(ref stock);
}
}