private List<RequestOfferMatch> cloneMatchList(List<RequestOfferMatch> origList) {
List<RequestOfferMatch> copy = new ArrayList<RequestOfferMatch>();
for (RequestOfferMatch match : origList) {
copy.add(match.clone());
}
return copy;
}
private RequestOfferMatch checkForMatchingOffers(PriceRequest req) {
RequestOfferMatch match = null;
List<PriceOffer> matchingOffers = market.getOffersFromPrice(req.getPrice());
if (matchingOffers.isEmpty()) {
return null;
} else {
int amountToFill = req.getAmount();
int totalMatchedAmount = 0;
match = new RequestOfferMatch();
// The first match will be the best price
match.setPrice(matchingOffers.get(0).getPrice());
match.setRequestList(new ArrayList<PriceRequest>());
match.setOfferList(new ArrayList<PriceOffer>());
ListIterator<PriceOffer> iter = matchingOffers.listIterator();
while (amountToFill > 0 && iter.hasNext()) {
PriceOffer offer = iter.next();
if (offer.getAmount() >= amountToFill) {
PriceOffer matchedOffer = offer.clone();
matchedOffer.setAmount(amountToFill);
offer.setAmount(offer.getAmount() - amountToFill);
if (offer.getAmount() == 0) {
market.removeOffer(offer);
}
match.getOfferList().add(matchedOffer);
if (match.getRequestList().isEmpty()) {
match.getRequestList().add(req.clone());
} else {
PriceRequest matchedRequest = match.getRequestList().get(0);
matchedRequest.setAmount(matchedRequest.getAmount() + amountToFill);
}
market.removeRequest(req);
totalMatchedAmount += amountToFill;
amountToFill = 0;
} else {
PriceOffer matchedOffer = offer.clone();
match.getOfferList().add(matchedOffer);
PriceRequest matchedRequest;
if (match.getRequestList().isEmpty()) {
matchedRequest = req.clone();
matchedRequest.setAmount(0);
match.getRequestList().add(matchedRequest);
} else {
matchedRequest = match.getRequestList().get(0);
}
int matchedAmount = offer.getAmount();
matchedRequest.setAmount(matchedRequest.getAmount() + matchedAmount);
amountToFill -= matchedAmount;
totalMatchedAmount += matchedAmount;
req.setAmount(amountToFill);
iter.remove();
market.removeOffer(offer);
}
}
match.setMatchedAmount(totalMatchedAmount);
match.setMatchTime(new Date());
matchList.push(match);
return match.clone();
}
}