public int run()

in src/java/org/apache/nutch/hostdb/UpdateHostDb.java [164:252]
82 lines of code
16 McCabe index (conditional complexity)

  public int run(String[] args) throws Exception {
    if (args.length < 2) {
      System.err.println("Usage: UpdateHostDb -hostdb <hostdb> " +
        "[-tophosts <tophosts>] [-crawldb <crawldb>] [-checkAll] [-checkFailed]" +
        " [-checkNew] [-checkKnown] [-force] [-filter] [-normalize] [-urlLimit <N>]");
      return -1;
    }

    Path hostDb = null;
    Path crawlDb = null;
    Path topHosts = null;

    boolean checkFailed = false;
    boolean checkNew = false;
    boolean checkKnown = false;
    boolean force = false;
    boolean filter = false;
    boolean normalize = false;
    long urlLimit = -1l;

    for (int i = 0; i < args.length; i++) {
      if (args[i].equals("-hostdb")) {
        hostDb = new Path(args[i + 1]);
        LOG.info("UpdateHostDb: hostdb: " + hostDb);
        i++;
      }
      if (args[i].equals("-crawldb")) {
        crawlDb = new Path(args[i + 1]);
        LOG.info("UpdateHostDb: crawldb: " + crawlDb);
        i++;
      }
      if (args[i].equals("-tophosts")) {
        topHosts = new Path(args[i + 1]);
        LOG.info("UpdateHostDb: tophosts: " + topHosts);
        i++;
      }

      if (args[i].equals("-checkFailed")) {
        LOG.info("UpdateHostDb: checking failed hosts");
        checkFailed = true;
      }
      if (args[i].equals("-checkNew")) {
        LOG.info("UpdateHostDb: checking new hosts");
        checkNew = true;
      }
      if (args[i].equals("-checkKnown")) {
        LOG.info("UpdateHostDb: checking known hosts");
        checkKnown = true;
      }
      if (args[i].equals("-checkAll")) {
        LOG.info("UpdateHostDb: checking all hosts");
        checkFailed = true;
        checkNew = true;
        checkKnown = true;
      }
      if (args[i].equals("-force")) {
        LOG.info("UpdateHostDb: forced check");
        force = true;
      }
      if (args[i].equals("-filter")) {
        LOG.info("UpdateHostDb: filtering enabled");
        filter = true;
      }
      if (args[i].equals("-normalize")) {
        LOG.info("UpdateHostDb: normalizing enabled");
        normalize = true;
      }
      if (args[i].equals("-urlLimit")) {
        urlLimit = Long.valueOf(args[i + 1]);
        LOG.info("UpdateHostDb: URL limit set to " + urlLimit);
        i++;
      }
    }

    if (hostDb == null) {
      System.err.println("hostDb is mandatory");
      return -1;
    }

    try {
      updateHostDb(hostDb, crawlDb, topHosts, checkFailed, checkNew,
        checkKnown, force, filter, normalize, urlLimit);

      return 0;
    } catch (Exception e) {
      LOG.error("UpdateHostDb: " + StringUtils.stringifyException(e));
      return -1;
    }
  }