public float getVolumeWeightedStockPrice(StockContainer stockContainer, float timeInterval) {
float priceValue = Constants.ZERO_VALUE;
long currentTime = System.currentTimeMillis();
Date filterDateValue = new Date(currentTime - 15 * 60 * 1000); // milli seconds
TradeContainer tradeContainer = null;
int iteratedQuantity = 0;
// check for the values
if (stockContainer != null && stockContainer.getTradeMap().size() > Constants.ZERO_VALUE) {
Set<Date> iterSet = stockContainer.getTradeMap().keySet();
// filter based on the time interval
for (Date date : iterSet) {
// neglect values before the time interval
if (date.before(filterDateValue)) {
continue;
} else {
// Buy or sell calculate the quantity and price
tradeContainer = stockContainer.getTradeMap().get(date);
iteratedQuantity += tradeContainer.getQuantity();
// return value
priceValue += tradeContainer.getPrice() * tradeContainer.getQuantity();
}
}
// calculate the price
if (iteratedQuantity > Constants.ZERO_VALUE) {
priceValue = priceValue / iteratedQuantity;
}
}
return priceValue;
}
public float calculateMeanValueFromStocks(List<StockContainer> stockList) throws Exception {
float gbceValue = 0.0f;
for (StockContainer stockContainer : stockList) {
// iterate all trade buy and sell and calculate the price
for (TradeContainer tradeContainer : stockContainer.getTradeMap().values()) {
gbceValue += tradeContainer.getPrice();
}
}
return (float) Math.pow(gbceValue, 1.0 / stockList.size());
}