| /** |
| * 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.heron.examples.eco; |
| |
| import java.util.Map; |
| import java.util.Random; |
| import java.util.logging.Logger; |
| |
| import org.apache.storm.spout.SpoutOutputCollector; |
| import org.apache.storm.task.TopologyContext; |
| import org.apache.storm.topology.OutputFieldsDeclarer; |
| import org.apache.storm.topology.base.BaseRichSpout; |
| import org.apache.storm.tuple.Fields; |
| import org.apache.storm.tuple.Values; |
| import org.apache.storm.utils.Utils; |
| |
| @SuppressWarnings({"serial", "rawtypes", "HiddenField"}) |
| public class TestFibonacciSpout extends BaseRichSpout { |
| private static final Logger LOG = Logger.getLogger(TestFibonacciSpout.class.getName()); |
| private TestPropertyHolder holder; |
| private SpoutOutputCollector collector; |
| |
| public TestFibonacciSpout(TestPropertyHolder holder) { |
| this.holder = holder; |
| } |
| |
| @Override |
| public void open(Map conf, TopologyContext context, |
| SpoutOutputCollector collector) { |
| this.collector = collector; |
| } |
| |
| @Override |
| public void nextTuple() { |
| Utils.sleep(100); |
| final int[] words = new int[] {0, 1, 2, 3, 5, 8, 13, 21, 34}; |
| final Random rand = new Random(); |
| final int number = words[rand.nextInt(words.length)]; |
| final String property = holder.getProperty(); |
| final int numberProperty = holder.getNumberProperty(); |
| final String publicProperty = holder.publicProperty; |
| LOG.info("Constructor Args: " + property); |
| LOG.info("Property set by setter: " + numberProperty); |
| LOG.info("Property set by public field: " + publicProperty); |
| LOG.info("Emitting: number " + number); |
| collector.emit(new Values(number)); |
| } |
| |
| @Override |
| public void declareOutputFields(OutputFieldsDeclarer declarer) { |
| declarer.declare(new Fields("number")); |
| } |
| } |