/** * Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The ASF licenses this file to you 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 org.apache.storm.starter; import java.util.concurrent.TimeUnit; import org.apache.storm.Config; import org.apache.storm.StormSubmitter; import org.apache.storm.starter.bolt.PrinterBolt; import org.apache.storm.starter.bolt.SlidingWindowSumBolt; import org.apache.storm.starter.spout.RandomIntegerSpout; import org.apache.storm.topology.TopologyBuilder; import org.apache.storm.topology.base.BaseWindowedBolt; import org.apache.storm.topology.base.BaseWindowedBolt.Duration; /** * Windowing based on tuple timestamp (e.g. the time when tuple is generated * rather than when its processed). */ public class SlidingTupleTsTopology { public static void main(String[] args) throws Exception { TopologyBuilder builder = new TopologyBuilder(); BaseWindowedBolt bolt = new SlidingWindowSumBolt() .withWindow(new Duration(5, TimeUnit.SECONDS), new Duration(3, TimeUnit.SECONDS)) .withTimestampField("ts") .withLag(new Duration(5, TimeUnit.SECONDS)); builder.setSpout("integer", new RandomIntegerSpout(), 1); builder.setBolt("slidingsum", bolt, 1).shuffleGrouping("integer"); builder.setBolt("printer", new PrinterBolt(), 1).shuffleGrouping("slidingsum"); Config conf = new Config(); conf.setDebug(true); String topoName = "test"; if (args != null && args.length > 0) { topoName = args[0]; } conf.setNumWorkers(1); StormSubmitter.submitTopologyWithProgressBar(topoName, conf, builder.createTopology()); } }