/******************************************************************************
* 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.Currency;
import nxt.NxtException;
import nxt.util.Convert;
import org.json.simple.JSONStreamAware;
import javax.servlet.http.HttpServletRequest;
import static nxt.http.JSONResponses.MISSING_CURRENCY;
import static nxt.http.JSONResponses.UNKNOWN_CURRENCY;
public final class GetCurrency extends APIServlet.APIRequestHandler {
static final GetCurrency instance = new GetCurrency();
private GetCurrency() {
super(new APITag[] {APITag.MS}, "currency", "code", "includeCounts");
}
@Override
JSONStreamAware processRequest(HttpServletRequest req) throws NxtException {
boolean includeCounts = "true".equalsIgnoreCase(req.getParameter("includeCounts"));
long currencyId = ParameterParser.getUnsignedLong(req, "currency", false);
Currency currency;
if (currencyId == 0) {
String currencyCode = Convert.emptyToNull(req.getParameter("code"));
if (currencyCode == null) {
return MISSING_CURRENCY;
}
currency = Currency.getCurrencyByCode(currencyCode);
} else {
currency = Currency.getCurrency(currencyId);
}
if (currency == null) {
throw new ParameterException(UNKNOWN_CURRENCY);
}
return JSONData.currency(currency, includeCounts);
}
}