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 backtype.storm.testing;
  
  import backtype.storm.coordination.BatchOutputCollector;
  import backtype.storm.task.TopologyContext;
  import backtype.storm.topology.OutputFieldsDeclarer;
  import backtype.storm.topology.base.BaseBatchBolt;
  import backtype.storm.tuple.Fields;
  import backtype.storm.tuple.Tuple;
  import backtype.storm.tuple.Values;
  import java.util.ArrayList;
  import java.util.Collections;
  import java.util.List;
  import java.util.Map;
  
  public class BatchNumberList extends BaseBatchBolt {
  
      @Override
      public void declareOutputFields(OutputFieldsDeclarer declarer) {
          declarer.declare(new Fields("word", "list"));
      }
  
      String _wordComponent;
  
      public BatchNumberList(String wordComponent) {
          _wordComponent = wordComponent;
      }
  
      String word = null;
      List<Integer> intSet = new ArrayList<Integer>();
      BatchOutputCollector _collector;
  
      @Override
      public void prepare(Map conf, TopologyContext context, BatchOutputCollector collector, Object id) {
          _collector = collector;
      }
  
      @Override
      public void execute(Tuple tuple) {
          if (tuple.getSourceComponent().equals(_wordComponent)) {
              this.word = tuple.getString(1);
          } else {
              intSet.add(tuple.getInteger(1));
          }
      }
  
      @Override
      public void finishBatch() {
          if (word != null) {
              Collections.sort(intSet);
              _collector.emit(new Values(word, intSet));
          }
      }
  
  }
  