public static void GenPriceData(string stockCode)
{
DateTime dt = DateTime.Now;
decimal lastHighPrice = 0, lastLowPrice = 0, lastClosePrice = 0, lastOpenPrice = 0, lastVolume = 0;
data.baseDS.priceDataSumRow dayPriceRow = myDailyPrice.GetData(stockCode, dt);
if (dayPriceRow == null)
{
data.baseDS.priceDataRow priceRow = application.DbAccess.GetLastPriceData(stockCode);
lastHighPrice = priceRow.highPrice;
lastLowPrice = priceRow.lowPrice;
lastClosePrice = priceRow.closePrice;
lastOpenPrice = priceRow.openPrice;
lastVolume = 0;
}
else
{
lastHighPrice = dayPriceRow.highPrice;
lastLowPrice = dayPriceRow.lowPrice;
lastClosePrice = dayPriceRow.closePrice;
lastOpenPrice = dayPriceRow.openPrice;
lastVolume = dayPriceRow.volume;
}
priceDataTbl.Clear();
importPriceTbl.Clear();
data.importDS.importPriceRow importRow = importPriceTbl.NewimportPriceRow();
application.DbAccess.InitData(importRow);
decimal highPrice = lastHighPrice + lastHighPrice * (decimal)common.system.Random(-4, 5) / 100;
decimal lowPrice = lastLowPrice + lastLowPrice * (decimal)common.system.Random(-4, 5) / 100;
decimal closePrice = lastClosePrice + lastClosePrice * (decimal)common.system.Random(-5, 5) / 100;
importRow.openPrice = lastOpenPrice;
importRow.highPrice = Math.Max(lastHighPrice, highPrice);
if (lowPrice < importRow.highPrice)
{
importRow.lowPrice = lowPrice;
}
else
{
importRow.lowPrice = importRow.highPrice;
}
if (closePrice >= importRow.lowPrice && closePrice <= importRow.highPrice)
{
importRow.closePrice = closePrice;
}
else
{
importRow.closePrice = (importRow.lowPrice + importRow.highPrice) / 2;
}
importRow.volume = lastVolume + common.system.Random(0, 100);
importRow.onDate = dt;
importRow.stockCode = stockCode;
importPriceTbl.AddimportPriceRow(importRow);
imports.libs.AddImportPrice(importPriceTbl, priceDataTbl);
application.DbAccess.UpdateData(priceDataTbl);
// In VN culture : start of week is Monday (not Sunday)
imports.libs.AggregatePriceData(priceDataTbl, vnCulture, null);
myDailyPrice.UpdateData(importRow);
}
//Use the idea from http://www.codeproject.com/KB/database/CsvReader.aspx by Sebastien Lorion
public static bool ImportOHLCV_CSV(string csvFileName, char delimiter, common.dateTimeLibs.DateTimeFormats dataDateFormat,
string stockExchangeForNewCode, CultureInfo culture,
data.baseDS.priceDataDataTable priceDataTbl,
ImportRow ImportRowFunc,
OnUpdatePriceData onUpdateDataFunc,
OnEndImportPriceData onEndImportFunc)
{
libs.importStat myImportStat = new libs.importStat();
myImportStat.Reset();
myImportStat.dateFormat = dataDateFormat;
myImportStat.culture = culture;
data.baseDS.stockCodeDataTable stockCodeTbl = new data.baseDS.stockCodeDataTable();
data.baseDS.priceDataRow priceDataRow;
DataRowView[] foundRows;
application.DbAccess.LoadData(stockCodeTbl, AppTypes.CommonStatus.Enable);
DataView stockCodeView = new DataView(stockCodeTbl);
stockCodeView.Sort = stockCodeTbl.codeColumn.ColumnName;
bool fCanceled = false;
DateTime lastPriceDate = common.Consts.constNullDate;
importOHLCV data;
// open the file "data.csv" which is a CSV file with headers
using (CsvReader csv = new CsvReader(new StreamReader(csvFileName), true, delimiter))
{
// missing fields will not throw an exception,
// but will instead be treated as if there was a null value
csv.MissingFieldAction = MissingFieldAction.ReplaceByNull;
int fieldCount = csv.FieldCount;
if (fieldCount < 7)
{
return(false);
}
while (csv.ReadNextRecord())
{
Application.DoEvents();
myImportStat.dataCount++;
data = ImportRowFunc(csv, myImportStat);
if (myImportStat.cancel)
{
fCanceled = true; break;
}
if (data == null)
{
myImportStat.errorCount++;
continue;
}
//Assume that all price must be valid
if (data.Open <= 0 || data.High <= 0 || data.Low <= 0 || data.Close <= 0)
{
continue;
}
foundRows = stockCodeView.FindRows(data.code);
if (foundRows.Length == 0)
{
//Try to add new stock code
libs.AddNewCode(data.code, stockExchangeForNewCode, stockCodeTbl);
application.DbAccess.UpdateData(stockCodeTbl);
}
// Ignore all data that was in database
//if (!foundLastPriceDate)
//{
// lastPriceDate = libs.FindLastPriceDate(data.code);
// foundLastPriceDate = true;
//}
if (lastPriceDate != common.Consts.constNullDate && data.dateTime <= lastPriceDate)
{
continue;
}
if (priceDataTbl.FindBystockCodeonDate(data.code, data.dateTime) != null)
{
myImportStat.errorCount++;
continue;
}
myImportStat.updateCount++;
priceDataRow = priceDataTbl.NewpriceDataRow();
commonClass.AppLibs.InitData(priceDataRow);
priceDataRow.stockCode = data.code;
priceDataRow.onDate = data.dateTime;
//Try to fix some error in data
priceDataRow.openPrice = (decimal)data.Open;
priceDataRow.highPrice = (decimal)data.High;
priceDataRow.lowPrice = (decimal)data.Low;
priceDataRow.closePrice = (decimal)data.Close;
priceDataRow.volume = (decimal)data.Volume;
priceDataTbl.AddpriceDataRow(priceDataRow);
if (onUpdateDataFunc != null)
{
onUpdateDataFunc(priceDataRow, myImportStat);
}
}
}
if (fCanceled)
{
priceDataTbl.Clear();
return(false);
}
if (onEndImportFunc != null)
{
onEndImportFunc(priceDataTbl);
}
return(true);
}