void printPrices(IO2GSession *session, IO2GResponse *response)
{
if (response != 0)
{
if (response->getType() == MarketDataSnapshot)
{
std::cout << "Request with RequestID='" << response->getRequestID() << "' is completed:" << std::endl;
O2G2Ptr<IO2GResponseReaderFactory> factory = session->getResponseReaderFactory();
if (factory)
{
O2G2Ptr<IO2GMarketDataSnapshotResponseReader> reader = factory->createMarketDataSnapshotReader(response);
if (reader)
{
char sTime[20];
for (int ii = reader->size() - 1; ii >= 0; ii--)
{
DATE dt = reader->getDate(ii);
formatDate(dt, sTime);
if (reader->isBar())
{
printf("DateTime=%s, BidOpen=%f, BidHigh=%f, BidLow=%f, BidClose=%f, AskOpen=%f, AskHigh=%f, AskLow=%f, AskClose=%f, Volume=%i\n",
sTime, reader->getBidOpen(ii), reader->getBidHigh(ii), reader->getBidLow(ii), reader->getBidClose(ii),
reader->getAskOpen(ii), reader->getAskHigh(ii), reader->getAskLow(ii), reader->getAskClose(ii), reader->getVolume(ii));
}
else
{
printf("DateTime=%s, Bid=%f, Ask=%f\n", sTime, reader->getBid(ii), reader->getAsk(ii));
}
}
}
}
}
}
}
bool getHistoryPrices(IO2GSession *session, const char *sInstrument, const char *sTimeframe, DATE dtFrom, DATE dtTo, ResponseListener *responseListener)
{
O2G2Ptr<IO2GRequestFactory> factory = session->getRequestFactory();
if (!factory)
{
std::cout << "Cannot create request factory" << std::endl;
return false;
}
//find timeframe by identifier
O2G2Ptr<IO2GTimeframeCollection> timeframeCollection = factory->getTimeFrameCollection();
O2G2Ptr<IO2GTimeframe> timeframe = timeframeCollection->get(sTimeframe);
if (!timeframe)
{
std::cout << "Timeframe '" << sTimeframe << "' is incorrect!" << std::endl;
return false;
}
O2G2Ptr<IO2GRequest> request = factory->createMarketDataSnapshotRequestInstrument(sInstrument, timeframe, timeframe->getQueryDepth());
DATE dtFirst = dtTo;
// there is limit for returned candles amount
do
{
factory->fillMarketDataSnapshotRequestTime(request, dtFrom, dtFirst, false);
responseListener->setRequestID(request->getRequestID());
session->sendRequest(request);
if (!responseListener->waitEvents())
{
std::cout << "Response waiting timeout expired" << std::endl;
return false;
}
// shift "to" bound to oldest datetime of returned data
O2G2Ptr<IO2GResponse> response = responseListener->getResponse();
if (response && response->getType() == MarketDataSnapshot)
{
O2G2Ptr<IO2GResponseReaderFactory> readerFactory = session->getResponseReaderFactory();
if (readerFactory)
{
O2G2Ptr<IO2GMarketDataSnapshotResponseReader> reader = readerFactory->createMarketDataSnapshotReader(response);
if (reader->size() > 0)
{
if (abs(dtFirst - reader->getDate(0)) > 0.0001)
dtFirst = reader->getDate(0); // earliest datetime of returned data
else
break;
}
else
{
std::cout << "0 rows received" << std::endl;
break;
}
}
printPrices(session, response);
}
else
{
break;
}
} while (dtFirst - dtFrom > 0.0001);
return true;
}