code: /*
   * 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.intel.hibench.flinkbench.microbench;
  
  import com.intel.hibench.flinkbench.datasource.StreamBase;
  import com.intel.hibench.flinkbench.util.FlinkBenchConfig;
  
  import org.apache.flink.api.common.functions.MapFunction;
  import org.apache.flink.api.java.tuple.Tuple2;
  import org.apache.flink.streaming.api.datastream.DataStream;
  import org.apache.flink.streaming.api.environment.StreamExecutionEnvironment;
  
  import com.intel.hibench.common.streaming.metrics.KafkaReporter;
  
  public class Repartition extends StreamBase {
  
    @Override
    public void processStream(final FlinkBenchConfig config) throws Exception {
  
      final StreamExecutionEnvironment env = StreamExecutionEnvironment.getExecutionEnvironment();
      env.setBufferTimeout(config.bufferTimeout);
  
      createDataStream(config);
      DataStream<Tuple2<String, String>> dataStream = env.addSource(getDataStream());
  
      dataStream.rebalance().map(
          new MapFunction<Tuple2<String, String>, Tuple2<String, String>>() {
  
            @Override
            public Tuple2<String, String> map(Tuple2<String, String> value) throws Exception {
              KafkaReporter kafkaReporter = new KafkaReporter(config.reportTopic, config.brokerList);
  
              kafkaReporter.report(Long.parseLong(value.f0), System.currentTimeMillis());
              return value;
            }
          });
  
  
      env.execute("Repartition Job");
    }
  }
  