public GerritGraphiteReporter()

in src/main/java/com/googlesource/gerrit/plugins/metricsreporters/GerritGraphiteReporter.java [55:110]
52 lines of code
7 McCabe index (conditional complexity)

  public GerritGraphiteReporter(
      PluginConfigFactory configFactory, @PluginName String pluginName, MetricRegistry registry) {
    Config config = configFactory.getGlobalPluginConfig(pluginName);
    String host = config.getString(SECTION_GRAPHITE, null, KEY_HOST);

    if (host != null) {
      int port;
      try {
        port = config.getInt(SECTION_GRAPHITE, KEY_PORT, DEFAULT_PORT);
      } catch (IllegalArgumentException e) {
        log.warn(String.format("Invalid port value; default to %d", DEFAULT_PORT));
        port = DEFAULT_PORT;
      }
      String prefix = config.getString(SECTION_GRAPHITE, null, KEY_PREFIX);
      if (prefix == null) {
        try {
          prefix = name(DEFAULT_PREFIX, InetAddress.getLocalHost().getHostName());
        } catch (UnknownHostException e) {
          log.error("Failed to get hostname", e);
          throw new RuntimeException(e);
        }
      }

      long configRate;
      try {
        configRate =
            config.getTimeUnit(SECTION_GRAPHITE, null, KEY_RATE, DEFAULT_RATE, DEFAULT_RATE_UNIT);
      } catch (IllegalArgumentException e) {
        log.warn(String.format("Invalid rate value; default to %ds", DEFAULT_RATE));
        configRate = DEFAULT_RATE;
      }
      if (configRate > 0) {
        rate = (int) configRate;
      } else {
        log.warn(String.format("Rate value must be positive; default to %ds", DEFAULT_RATE));
        rate = DEFAULT_RATE;
      }

      log.info(
          String.format(
              "Reporting to Graphite at %s:%d with prefix %s at rate %ds",
              host, port, prefix, rate));

      graphiteReporter =
          GraphiteReporter.forRegistry(registry)
              .convertRatesTo(TimeUnit.MINUTES)
              .convertDurationsTo(TimeUnit.MILLISECONDS)
              .prefixedWith(prefix)
              .filter(MetricFilter.ALL)
              .build(new Graphite(new InetSocketAddress(host, port)));
    } else {
      log.warn("No hostname configured; not reporting to Graphite");
      graphiteReporter = null;
      rate = 0;
    }
  }