@Override
public TradeRow apply(Trade input) {
TradeRow tradeRow = new TradeRow();
tradeRow.setBuyingBroker(input.getBuyBroker());
tradeRow.setPrice(input.getPrice());
tradeRow.setQuantity(input.getQuantity());
tradeRow.setSellingBroker(input.getSellBroker());
return tradeRow;
}
public void add(Trade trade) throws TradeException {
// Is a valid trade?
if (trade.getDate() == null) throw new TradeException("Trade date must be informed!");
if (trade.getPrice() <= 0) throw new TradeException("Trade price must be greater than zero!");
if (trade.getQuantity() <= 0)
throw new TradeException("Trade quantity must be greater than zero!");
tradesRecordTable.add(trade);
Collections.sort(tradesRecordTable);
}
public double calculateVolumeWeightedStockPrice(String stockSymbol, int lastMinutes) {
// Get end date
Calendar startDate = Calendar.getInstance();
startDate.add(Calendar.MINUTE, lastMinutes * -1);
double totalTradedPrice = 0, totalQuantity = 0;
// Acumulate quantity and price
for (Trade trade : tradesRecordTable) {
// Is the stock requested?
if (!trade.getStock().getStockSymbol().equals(stockSymbol)) continue;
// Check date range of trade
if (lastMinutes > 0 && trade.getDate().before(startDate.getTime())) continue;
totalTradedPrice += (trade.getPrice() * trade.getQuantity());
totalQuantity += trade.getQuantity();
}
// Prevent zero divide
if (totalQuantity == 0) return 0;
return totalTradedPrice / totalQuantity;
}
