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 com.conwet.silbops.model.MessageType; import com.conwet.silbops.model.Notification; import org.json.simple.JSONObject; /** * * @author sortega */ public class NotifyMsg extends Message { private Notification notification; public NotifyMsg() { this(new Notification()); } public NotifyMsg(JSONObject payload) { this(Notification.fromJSON((JSONObject) payload.get("notification"))); } public NotifyMsg(Notification notification) { super(MessageType.NOTIFY); this.notification = Objects.requireNonNull(notification, "Notification is null"); } public Notification getNotification() { return notification; } public void setNotification(Notification notification) { this.notification = Objects.requireNonNull(notification); } @Override @SuppressWarnings("unchecked") public JSONObject getPayloadAsJSON() { JSONObject json = new JSONObject(); json.put("notification", notification.toJSON()); return json; } @Override public boolean equals(Object obj) { if (this == obj) { return true; } if (obj instanceof NotifyMsg) { NotifyMsg other = (NotifyMsg) obj; return notification.equals(other.notification); } return false; } @Override public int hashCode() { int hash = 7; hash = 59 * hash + notification.hashCode(); return hash; } }