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.order;
  
  import backtype.storm.task.TopologyContext;
  import backtype.storm.topology.BasicOutputCollector;
  import backtype.storm.topology.OutputFieldsDeclarer;
  import backtype.storm.topology.base.BaseBasicBolt;
  import backtype.storm.tuple.Tuple;
  import com.alibaba.jstorm.common.metric.AsmCounter;
  import com.alibaba.jstorm.common.metric.AsmMetric;
  import com.alibaba.jstorm.metric.MetricClient;
  
  import java.util.HashMap;
  import java.util.Map;
  
  /**
   * @author binyang.dby
   */
  public class InOrderTestBolt extends BaseBasicBolt
  {
      private Map<Integer, Integer> expected = new HashMap<>();   //store the taskIndex and the content has received before.
      private transient MetricClient metricClient;
      private transient AsmCounter successCounter;
      private transient AsmCounter failCounter;
  
      @Override
      public void prepare(Map stormConf, TopologyContext context)
      {
          super.prepare(stormConf, context);
          metricClient = new MetricClient(context);
          successCounter = metricClient.registerCounter(InOrderTestMetricsDef.METRIC_BOLT_SUCCESS);
          successCounter.setOp(AsmMetric.MetricOp.LOG & AsmMetric.MetricOp.REPORT);
          failCounter = metricClient.registerCounter(InOrderTestMetricsDef.METRIC_BOLT_FAIL);
          failCounter.setOp(AsmMetric.MetricOp.LOG & AsmMetric.MetricOp.REPORT);
      }
  
      @Override
      public void execute(Tuple input, BasicOutputCollector collector) {
          Integer c1 = input.getInteger(0);
          Integer c2 = input.getInteger(1);
  
          Integer expect = expected.get(c1);
          if (expect == null)
              expect = 0;
  
          if (c2.intValue() == expect.intValue())
              successCounter.inc();
          else
              failCounter.inc();
  
          expect = c2 + 1;
          expected.put(c1, expect);
      }
  
      @Override
      public void declareOutputFields(OutputFieldsDeclarer declarer) {
  
      }
  }
  