public Indexer() 
{
    
    super(null);
}

 public Indexer(Configuration conf) 
{
    super(conf);
}

 public  void index(Path luceneDir,
    Path crawlDb,
    Path linkDb,
    List segments) throws IOException 
{
    LOG.info("Indexer: starting");
    final JobConf job = new NutchJob(getConf());
    job.setJobName("index-lucene " + luceneDir);
    IndexerMapReduce.initMRJob(crawlDb, linkDb, segments, job);
    FileOutputFormat.setOutputPath(job, luceneDir);
    LuceneWriter.addFieldOptions("segment", LuceneWriter.STORE.YES, LuceneWriter.INDEX.NO, job);
    LuceneWriter.addFieldOptions("digest", LuceneWriter.STORE.YES, LuceneWriter.INDEX.NO, job);
    LuceneWriter.addFieldOptions("boost", LuceneWriter.STORE.YES, LuceneWriter.INDEX.NO, job);
    NutchIndexWriterFactory.addClassToConf(job, LuceneWriter.class);
    JobClient.runJob(job);
    LOG.info("Indexer: done");
}

 public static  void main(String[] args) throws Exception 
{
    final int res = ToolRunner.run(NutchConfiguration.create(), new Indexer(), args);
    System.exit(res);
}

 public int run(String[] args) throws Exception 
{
    if (args.length <  4) {
      System.err.println("Usage: Indexer < index > < crawldb > < linkdb > < segment > ...");
      return -1;
    }
    final Path luceneDir = new Path(args[0]);
    final Path crawlDb = new Path(args[1]);
    final Path linkDb = new Path(args[2]);
    final List< Path > segments = new ArrayList< Path >();
    for (int i = 3; i <  args.length; i++) {
      segments.add(new Path(args[i]));
    }
    try {
      index(luceneDir, crawlDb, linkDb, segments);
      return 0;
    } catch (final Exception e) {
      LOG.fatal("Indexer: " + StringUtils.stringifyException(e));
      return -1;
    }
}