content: /**
   * 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 com.alipay.dw.jstorm.example.multilanguage;
  
  import java.util.HashMap;
  import java.util.Map;
  
  import org.apache.storm.starter.spout.RandomSentenceSpout;
  
  import com.alibaba.starter.utils.Assert;
  import com.alibaba.starter.utils.JStormHelper;
  
  import backtype.storm.Config;
  import backtype.storm.LocalCluster;
  import backtype.storm.StormSubmitter;
  import backtype.storm.task.ShellBolt;
  import backtype.storm.testing.MemoryTransactionalSpout;
  import backtype.storm.topology.BasicOutputCollector;
  import backtype.storm.topology.IRichBolt;
  import backtype.storm.topology.OutputFieldsDeclarer;
  import backtype.storm.topology.TopologyBuilder;
  import backtype.storm.topology.base.BaseBasicBolt;
  import backtype.storm.transactional.TransactionalTopologyBuilder;
  import backtype.storm.tuple.Fields;
  import backtype.storm.tuple.Tuple;
  import backtype.storm.tuple.Values;
  
  /**
   * This topology demonstrates Storm's stream groupings and multilang
   * capabilities.
   */
  public class WordCountTopology {
      public static class SplitSentence extends ShellBolt implements IRichBolt {
          
          public SplitSentence() {
              super("python", "splitsentence.py");
          }
          
          @Override
          public void declareOutputFields(OutputFieldsDeclarer declarer) {
              declarer.declare(new Fields("word"));
          }
          
          @Override
          public Map<String, Object> getComponentConfiguration() {
              return null;
          }
      }
      
      public static class WordCount extends BaseBasicBolt {
          Map<String, Integer> counts = new HashMap<String, Integer>();
          
          @Override
          public void execute(Tuple tuple, BasicOutputCollector collector) {
              String word = tuple.getString(0);
              Integer count = counts.get(word);
              if (count == null)
                  count = 0;
              count++;
              counts.put(word, count);
              collector.emit(new Values(word, count));
          }
          
          @Override
          public void declareOutputFields(OutputFieldsDeclarer declarer) {
              declarer.declare(new Fields("word", "count"));
          }
      }
      
      
      static boolean isLocal = true;
      static Config  conf    = JStormHelper.getConfig(null);
      
      public static void test() {
          TopologyBuilder builder = new TopologyBuilder();
          
          builder.setSpout("spout", new RandomSentenceSpout(), 5);
          
          builder.setBolt("split", new SplitSentence(), 8).shuffleGrouping("spout");
          builder.setBolt("count", new WordCount(), 12).fieldsGrouping("split", new Fields("word"));
          
          Config conf = new Config();
          conf.setDebug(true);
          
          String[] className = Thread.currentThread().getStackTrace()[1].getClassName().split("\\.");
          String topologyName = className[className.length - 1];
          
          try {
              JStormHelper.runTopology(builder.createTopology(), topologyName, conf, 60,
                      new JStormHelper.CheckAckedFail(conf), isLocal);
          } catch (Exception e) {
              // TODO Auto-generated catch block
              e.printStackTrace();
              Assert.fail("Failed");
          }
      }
      
      public static void main(String[] args) throws Exception {
          isLocal = false;
          test();
      }
  }
  