content: // == OldMaxTemperatureWithMapOutputCompression
  package oldapi;
  
  import java.io.IOException;
  
  import org.apache.hadoop.fs.Path;
  import org.apache.hadoop.io.IntWritable;
  import org.apache.hadoop.io.Text;
  import org.apache.hadoop.io.compress.*;
  import org.apache.hadoop.mapred.FileInputFormat;
  import org.apache.hadoop.mapred.FileOutputFormat;
  import org.apache.hadoop.mapred.JobClient;
  import org.apache.hadoop.mapred.JobConf;
  
  public class MaxTemperatureWithMapOutputCompression {
  
    public static void main(String[] args) throws IOException {
      if (args.length != 2) {
        System.err.println("Usage: MaxTemperatureWithMapOutputCompression " +
        		"<input path> <output path>");
        System.exit(-1);
      }
      
      JobConf conf = new JobConf(MaxTemperatureWithCompression.class);
      conf.setJobName("Max temperature with map output compression");
  
      FileInputFormat.addInputPath(conf, new Path(args[0]));
      FileOutputFormat.setOutputPath(conf, new Path(args[1]));
      
      conf.setOutputKeyClass(Text.class);
      conf.setOutputValueClass(IntWritable.class);
      
      // vv OldMaxTemperatureWithMapOutputCompression
      conf.setCompressMapOutput(true);
      conf.setMapOutputCompressorClass(GzipCodec.class);
      // ^^ OldMaxTemperatureWithMapOutputCompression
  
      conf.setMapperClass(MaxTemperatureMapper.class);
      conf.setCombinerClass(MaxTemperatureReducer.class);
      conf.setReducerClass(MaxTemperatureReducer.class);
  
      JobClient.runJob(conf);
    }
  
  }
  