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.jstorm.example.unittests.window;
  
  import backtype.storm.task.OutputCollector;
  import backtype.storm.task.TopologyContext;
  import backtype.storm.topology.base.BaseWindowedBolt;
  import backtype.storm.tuple.Tuple;
  import backtype.storm.windowing.TupleWindow;
  import com.alibaba.jstorm.common.metric.AsmCounter;
  import com.alibaba.jstorm.metric.MetricClient;
  
  import java.util.List;
  import java.util.Map;
  
  /**
   * @author binyang.dby on 2016/7/21.
   */
  public class SlidingTupleTestBolt extends BaseWindowedBolt {
  
      private MetricClient metricClient;
      private AsmCounter asmCounter;
  
      @Override
      public void prepare(Map stormConf, TopologyContext context, OutputCollector collector) {
          this.metricClient = new MetricClient(context);
          this.asmCounter = metricClient.registerCounter("SlidingTupleTsTopologyTest.BoltSum");
      }
  
      @Override
      public void execute(TupleWindow inputWindow) {
  
          List<Tuple> tuplesInWindow = inputWindow.get();
          int sum = 0;
          for(Tuple tuple : tuplesInWindow)
              sum += tuple.getInteger(0);
  
          asmCounter.update(sum);
      }
  }
  