Java tutorial
/* Copyright 2016 Christiaan Martinez * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package com.sagalasan.swivel.control; import com.google.inject.Inject; import com.sagalasan.swivel.message.Ping; import com.sagalasan.swivel.message.Time; import com.sagalasan.swivel.message.codec.PingCodec; import com.sagalasan.swivel.message.codec.TimeCodec; import com.sagalasan.swivel.service.CurrentTimeService; import io.vertx.core.AbstractVerticle; import io.vertx.core.Future; import io.vertx.core.Vertx; import io.vertx.core.eventbus.Message; /** * @author Christiaan Martinez */ public abstract class Controller extends AbstractVerticle { private Vertx vertx; private String deploymentID; @Inject public void setVertx(Vertx vertx) { this.vertx = vertx; vertx.deployVerticle(this, res -> { deploymentID = res.result(); System.out.println(this.getClass().getSimpleName() + " deployed"); vertx.eventBus().send(CurrentTimeService.RECEIVE, new Ping(), reply -> { if (reply.succeeded()) { System.out.println("Reply successful"); Time time = (Time) reply.result().body(); onCurrentTimeReceived(time.getTime()); } }); onDeploy(); }); } @Override public void start(Future<Void> future) { vertx.eventBus().consumer(CurrentTimeService.class.getName(), this::handleTimeReceived); future.complete(); } public void handleTimeReceived(Message message) { Time time = (Time) message.body(); onCurrentTimeReceived(time.getTime()); } public void onCurrentTimeReceived(long time) { } public void undeploy() { vertx.undeploy(deploymentID); } public abstract void onDeploy(); }