Java tutorial
package com.conwet.silbops.msg; /* * #%L * SilboPS API Broker * %% * Copyright (C) 2011 - 2014 CoNWeT Lab., Universidad Politcnica de Madrid * %% * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU Affero General Public License as published by * the Free Software Foundation, either version 3 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 Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. * #L% */ import java.util.Objects; import org.json.simple.JSONArray; import org.json.simple.JSONObject; import com.conwet.silbops.model.Advertise; import com.conwet.silbops.model.MessageType; /** * * @author sergio */ public class AdvertiseMsg extends Message { private Advertise advertise; private Advertise context; public AdvertiseMsg() { this(new Advertise(), new Advertise()); } public AdvertiseMsg(JSONObject payload) { this(Advertise.fromJSON((JSONArray) payload.get("advertise")), Advertise.fromJSON((JSONArray) payload.get("context"))); } public AdvertiseMsg(Advertise advertise, Advertise context) { super(MessageType.ADVERTISE); this.advertise = Objects.requireNonNull(advertise, "Advertise is null"); this.context = Objects.requireNonNull(context, "Context is null"); } @Override @SuppressWarnings("unchecked") public JSONObject getPayloadAsJSON() { JSONObject json = new JSONObject(); json.put("advertise", advertise.toJSON()); json.put("context", context.toJSON()); return json; } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj instanceof AdvertiseMsg) { AdvertiseMsg other = (AdvertiseMsg) obj; return advertise.equals(other.advertise) && context.equals(other.context); } return false; } @Override public int hashCode() { int hash = 7; hash = 59 * hash + advertise.hashCode(); hash = 59 * hash + context.hashCode(); return hash; } public Advertise getAdvertise() { return advertise; } public void setAdvertise(Advertise advertise) { this.advertise = Objects.requireNonNull(advertise); } public Advertise getContext() { return context; } public void setContext(Advertise context) { this.context = Objects.requireNonNull(context); } }