/** * 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 backtype.storm.testing; import backtype.storm.topology.BasicOutputCollector; import backtype.storm.topology.OutputFieldsDeclarer; import backtype.storm.topology.base.BaseBasicBolt; import backtype.storm.tuple.Fields; import backtype.storm.tuple.Tuple; import backtype.storm.tuple.Values; public class BatchRepeatA extends BaseBasicBolt { @Override public void execute(Tuple input, BasicOutputCollector collector) { Object id = input.getValue(0); String word = input.getString(1); for (int i = 0; i < word.length(); i++) { if (word.charAt(i) == 'a') { collector.emit("multi", new Values(id, word.substring(0, i))); } } collector.emit("single", new Values(id, word)); } @Override public void declareOutputFields(OutputFieldsDeclarer declarer) { declarer.declareStream("multi", new Fields("id", "word")); declarer.declareStream("single", new Fields("id", "word")); } }