/******************************************************************************
* Copyright © 2013-2016 The Nxt Core Developers. *
* *
* See the AUTHORS.txt, DEVELOPER-AGREEMENT.txt and LICENSE.txt files at *
* the top-level directory of this distribution for the individual copyright *
* holder information and the developer policies on copyright and licensing. *
* *
* Unless otherwise agreed in a custom licensing agreement, no part of the *
* Nxt software, including this file, may be copied, modified, propagated, *
* or distributed except according to the terms contained in the LICENSE.txt *
* file. *
* *
* Removal or modification of this copyright notice is prohibited. *
* *
******************************************************************************/
package nxt.http;
import nxt.CurrencyBuyOffer;
import nxt.db.DbIterator;
import nxt.db.DbUtils;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.JSONStreamAware;
import javax.servlet.http.HttpServletRequest;
public final class GetBuyOffers extends APIServlet.APIRequestHandler {
static final GetBuyOffers instance = new GetBuyOffers();
private GetBuyOffers() {
super(new APITag[] {APITag.MS}, "currency", "account", "availableOnly", "firstIndex", "lastIndex");
}
@Override
JSONStreamAware processRequest(HttpServletRequest req) throws ParameterException {
long currencyId = ParameterParser.getUnsignedLong(req, "currency", false);
long accountId = ParameterParser.getAccountId(req, false);
if (currencyId == 0 && accountId == 0) {
return JSONResponses.MISSING_CURRENCY_ACCOUNT;
}
boolean availableOnly = "true".equalsIgnoreCase(req.getParameter("availableOnly"));
int firstIndex = ParameterParser.getFirstIndex(req);
int lastIndex = ParameterParser.getLastIndex(req);
JSONObject response = new JSONObject();
JSONArray offerData = new JSONArray();
response.put("offers", offerData);
DbIterator<CurrencyBuyOffer> offers= null;
try {
if (accountId == 0) {
offers = CurrencyBuyOffer.getCurrencyOffers(currencyId, availableOnly, firstIndex, lastIndex);
} else if (currencyId == 0) {
offers = CurrencyBuyOffer.getAccountOffers(accountId, availableOnly, firstIndex, lastIndex);
} else {
CurrencyBuyOffer offer = CurrencyBuyOffer.getOffer(currencyId, accountId);
if (offer != null) {
offerData.add(JSONData.offer(offer));
}
return response;
}
while (offers.hasNext()) {
offerData.add(JSONData.offer(offers.next()));
}
} finally {
DbUtils.close(offers);
}
return response;
}
}