content: package hip.ch5;
  
  import hip.util.Cli;
  import org.apache.hadoop.conf.Configuration;
  import org.apache.hadoop.conf.Configured;
  import org.apache.hadoop.fs.FSDataOutputStream;
  import org.apache.hadoop.fs.FileSystem;
  import org.apache.hadoop.fs.Path;
  import org.apache.hadoop.io.IOUtils;
  import org.apache.hadoop.util.Tool;
  import org.apache.hadoop.util.ToolRunner;
  
  import java.io.IOException;
  
  import static hip.util.CliCommonOpts.OutputFileOption;
  
  /**
   * Streams standard input to a file in HDFS.
   */
  public final class CopyStreamToHdfs extends Configured implements Tool {
  
    /**
     * Main entry point for the example.
     *
     * @param args arguments
     * @throws Exception when something goes wrong
     */
    public static void main(final String[] args) throws Exception {
      int res = ToolRunner.run(new Configuration(), new CopyStreamToHdfs(), args);
      System.exit(res);
    }
  
    /**
     * The MapReduce driver - setup and launch the job.
     *
     * @param args the command-line arguments
     * @return the process exit code
     * @throws Exception if something goes wrong
     */
    public int run(final String[] args) throws Exception {
  
      Cli cli = Cli.builder().setArgs(args).addOptions(OutputFileOption.values()).build();
      int result = cli.runCmd();
  
      if (result != 0) {
        return result;
      }
  
      Path output = new Path(cli.getArgValueAsString(OutputFileOption.OUTPUT));
  
      Configuration conf = super.getConf();
  
      FileSystem fs = FileSystem.get(conf);
  
      try {
        FSDataOutputStream out = fs.create(output, false);
  
        try {
          IOUtils.copyBytes(System.in, out, getConf(), false);
        } finally {
          out.close();
        }
      } catch (IOException e) {
        e.printStackTrace();
        return 1;
      }
      return 0;
    }
  
  }
  