/******************************************************************************
* 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.Alias;
import nxt.NxtException;
import nxt.db.DbIterator;
import nxt.util.Convert;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.JSONStreamAware;
import javax.servlet.http.HttpServletRequest;
public final class GetAliasesLike extends APIServlet.APIRequestHandler {
static final GetAliasesLike instance = new GetAliasesLike();
private GetAliasesLike() {
super(new APITag[] {APITag.ALIASES, APITag.SEARCH}, "aliasPrefix", "firstIndex", "lastIndex");
}
@Override
JSONStreamAware processRequest(HttpServletRequest req) throws NxtException {
int firstIndex = ParameterParser.getFirstIndex(req);
int lastIndex = ParameterParser.getLastIndex(req);
String prefix = Convert.emptyToNull(req.getParameter("aliasPrefix"));
if (prefix == null) {
return JSONResponses.missing("aliasPrefix");
}
if (prefix.length() < 2) {
return JSONResponses.incorrect("aliasPrefix", "aliasPrefix must be at least 2 characters long");
}
JSONObject response = new JSONObject();
JSONArray aliasJSON = new JSONArray();
response.put("aliases", aliasJSON);
try (DbIterator<Alias> aliases = Alias.getAliasesLike(prefix, firstIndex, lastIndex)) {
while (aliases.hasNext()) {
aliasJSON.add(JSONData.alias(aliases.next()));
}
}
return response;
}
}