public static void DownloadAndConvertHistoricalData(object downloadParams)
{
Variables.DownloadedCount = 0; // track downloads
Variables.threadList.Clear();
HistoricalDownloadParams _downloadParams = downloadParams as HistoricalDownloadParams;
if (_downloadParams.StartDownloadProcess != null)
{
_downloadParams.StartDownloadProcess();
}
List <string> tmpList = new List <string>();
tmpList.AddRange(_downloadParams.stockList.ToArray());
const int NUM_THREADS = 5;
int stockCount = tmpList.Count;
int threadCount = stockCount / NUM_THREADS;
if (threadCount == 0)
{
threadCount = 1;
}
int startIndex = 0;
int adder = 0;
for (int i = 0; i < threadCount; i++)
{
// add the remainder of the stocks in the list
if (threadCount == i + 1)
{
adder = stockCount % NUM_THREADS;
}
int downloadItemCount = (stockCount >= NUM_THREADS) ? NUM_THREADS + adder : adder;
// take the items
List <string> l = new List <string>();
l.AddRange(tmpList.Take(downloadItemCount).ToArray());
DoDownloadHistoricalData(l, _downloadParams.NumYears, _downloadParams.OutputSettings,
_downloadParams.BeforeStockDataDownloadCallback, _downloadParams.AfterStockDataDownloadCallback,
_downloadParams.OnExceptionCallback);
// remove added items
tmpList.RemoveRange(startIndex, downloadItemCount);
}
// wait for everything to complete
while (true)
{
int count = (from t in Variables.threadList
where t.IsAlive == true
select t).Count();
if (count == 0)
{
if (_downloadParams.DownloadAllCompleteCallback != null)
{
_downloadParams.DownloadAllCompleteCallback();
}
break;
}
}
}
