private synchronized void addToBook(BookSide side, Tradable trd) throws Exception {
if (ProductService.getInstance().getMarketState().equals(MarketState.PREOPEN)) {
switch (side) {
case BUY:
buySide.addToBook(trd);
break;
case SELL:
sellSide.addToBook(trd);
break;
}
} else {
HashMap<String, FillMessage> allFills = null;
switch (side) {
case BUY:
allFills = sellSide.tryTrade(trd);
break;
case SELL:
allFills = buySide.tryTrade(trd);
break;
}
if (allFills != null && !allFills.isEmpty()) {
this.updateCurrentMarket();
int difference = trd.getOriginalVolume() - trd.getRemainingVolume();
Price lastSalePrice = this.determineLastSalePrice(allFills);
LastSalePublisher.getInstance()
.publishLastSale(this.productSymbol, lastSalePrice, difference);
}
if (trd.getRemainingVolume() > 0) {
if (trd.getPrice().isMarket()) {
CancelMessage cm =
new CancelMessage(
trd.getUser(),
trd.getProduct(),
trd.getPrice(),
trd.getRemainingVolume(),
"Cancelled",
trd.getSide(),
trd.getId());
MessagePublisher.getInstance().publishCancel(cm);
} else {
switch (side) {
case BUY:
buySide.addToBook(trd);
break;
case SELL:
sellSide.addToBook(trd);
break;
}
}
}
}
}
public synchronized void openMarket() throws Exception {
Price bestBuyPrice = buySide.topOfBookPrice();
Price bestSellPrice = sellSide.topOfBookPrice();
if (bestBuyPrice != null && bestSellPrice != null) {
while (bestBuyPrice.greaterOrEqual(bestSellPrice)
|| bestBuyPrice.isMarket()
|| bestSellPrice.isMarket()) {
ArrayList<Tradable> topOfBuySide = buySide.getEntriesAtPrice(bestBuyPrice);
ArrayList<Tradable> toRemove = new ArrayList<Tradable>();
HashMap<String, FillMessage> allFills = null;
for (Tradable t : topOfBuySide) {
allFills = sellSide.tryTrade(t);
if (t.getRemainingVolume() == 0) {
toRemove.add(t);
}
}
for (Tradable t : toRemove) {
buySide.removeTradable(t);
}
updateCurrentMarket();
Price lastSalePrice = this.determineLastSalePrice(allFills);
int lastSaleVolume = this.determineLastSaleQuantity(allFills);
LastSalePublisher.getInstance()
.publishLastSale(productSymbol, lastSalePrice, lastSaleVolume);
bestBuyPrice = buySide.topOfBookPrice();
bestSellPrice = sellSide.topOfBookPrice();
if (bestBuyPrice == null || bestSellPrice == null) break;
}
}
}
