/******************************************************************************
* 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.Block;
import nxt.Constants;
import nxt.EconomicClustering;
import nxt.Nxt;
import nxt.NxtException;
import org.json.simple.JSONObject;
import org.json.simple.JSONStreamAware;
import javax.servlet.http.HttpServletRequest;
public final class GetECBlock extends APIServlet.APIRequestHandler {
static final GetECBlock instance = new GetECBlock();
private GetECBlock() {
super(new APITag[] {APITag.BLOCKS}, "timestamp");
}
@Override
JSONStreamAware processRequest(HttpServletRequest req) throws NxtException {
int timestamp = ParameterParser.getTimestamp(req);
if (timestamp == 0) {
timestamp = Nxt.getEpochTime();
}
if (timestamp < Nxt.getBlockchain().getLastBlock().getTimestamp() - Constants.MAX_TIMEDRIFT) {
return JSONResponses.INCORRECT_TIMESTAMP;
}
Block ecBlock = EconomicClustering.getECBlock(timestamp);
JSONObject response = new JSONObject();
response.put("ecBlockId", ecBlock.getStringId());
response.put("ecBlockHeight", ecBlock.getHeight());
response.put("timestamp", timestamp);
return response;
}
}