Java tutorial
/* * @(#) MapperStatusQuery.java * * This code is part of the JNavigator project. * Copyright (c) 2012 Clemens Krainer * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software Foundation, * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ package at.uni_salzburg.cs.ckgroup.cscpp.mapper.json; import java.util.Map; import java.util.Map.Entry; import org.json.simple.JSONArray; import org.json.simple.JSONObject; import org.json.simple.JSONValue; import at.uni_salzburg.cs.ckgroup.cpcc.mapper.api.IMapper; import at.uni_salzburg.cs.ckgroup.cpcc.mapper.api.IRegistrationData; import at.uni_salzburg.cs.ckgroup.cscpp.utils.IQuery; import at.uni_salzburg.cs.ckgroup.cscpp.utils.IServletConfig; public class MapperStatusQuery implements IQuery { private IMapper mapper; public MapperStatusQuery(IMapper mapper) { this.mapper = mapper; } @SuppressWarnings("unchecked") public String execute(IServletConfig config, String[] parameters) { if (mapper == null) { return ""; } Map<String, IRegistrationData> registrationData = mapper.getRegistrationData(); // Map<String, IStatusProxy> statusProxyMap = mapper.getStatusProxyMap(); // List<IVirtualVehicleInfo> virtualVehicleList = mapper.getVirtualVehicleList(); JSONArray a = new JSONArray(); for (Entry<String, IRegistrationData> rdEntry : registrationData.entrySet()) { IRegistrationData rd = rdEntry.getValue(); JSONObject o = new JSONObject(); o.put("regDat", rd); a.add(o); } return JSONValue.toJSONString(a); } }