/******************************************************************************
* 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.util.Convert;
import nxt.util.JSON;
import org.json.simple.JSONObject;
import org.json.simple.JSONStreamAware;
import javax.servlet.http.HttpServletRequest;
import java.math.BigInteger;
public final class LongConvert extends APIServlet.APIRequestHandler {
static final LongConvert instance = new LongConvert();
private LongConvert() {
super(new APITag[] {APITag.UTILS}, "id");
}
@Override
JSONStreamAware processRequest(HttpServletRequest req) {
String id = Convert.emptyToNull(req.getParameter("id"));
if (id == null) {
return JSON.emptyJSON;
}
JSONObject response = new JSONObject();
BigInteger bigInteger = new BigInteger(id);
if (bigInteger.signum() < 0) {
if (bigInteger.negate().compareTo(Convert.two64) > 0) {
return JSONResponses.OVERFLOW;
} else {
response.put("stringId", bigInteger.add(Convert.two64).toString());
response.put("longId", String.valueOf(bigInteger.longValue()));
}
} else {
if (bigInteger.compareTo(Convert.two64) >= 0) {
return JSONResponses.OVERFLOW;
} else {
response.put("stringId", bigInteger.toString());
response.put("longId", String.valueOf(bigInteger.longValue()));
}
}
return response;
}
@Override
boolean allowRequiredBlockParameters() {
return false;
}
@Override
boolean requireBlockchain() {
return false;
}
}