private[this] def loop()

in src/main/scala/com/twitter/iago/server/AutoStats.scala [115:164]
42 lines of code
4 McCabe index (conditional complexity)

  private[this] def loop(serviceName: String) {
    val statsSource = statsSourceF()
    val logLocally = logLocallyF()

    val logIt: () => Service[Sample, Unit] =
      if (logLocally) {
        Logger.configure(
          List(
            new LoggerFactory(
              node = "stats",
              level = Some(Level.INFO),
              useParents = false,
              handlers = List(
                FileHandler(
                  filename = localStatsLogNameF(),
                  rollPolicy = Policy.MaxSize(10.megabytes),
                  rotateCount = 6
                )
              )
            )
          )
        )
        toFile()
      } else {
        val scribeDest = "scribe=" + statsScribeF()
        lg.info("the scribe destination for statistics collection is %s", scribeDest)
        () =>
          toScribe(Thrift.client.newIface[Scribe.FutureIface](scribeDest))
      }

    var startTime = System.currentTimeMillis()
    val sleepInterval = 1000 * (if (logLocally) 1 else 60)
    while (go) {

      // sleep for an interval, correcting for drift

      startTime += sleepInterval
      val delta = startTime - System.currentTimeMillis()
      if (delta > 0) {

        // write a sample

        val stats = sample(serviceName, statsSource) andThen
          ignoreErrors[Sample] andThen
          logIt()
        stats()
        Thread.sleep(delta)
      }
    }
  }