public synchronized void renderStatusText(RouteMetricSet metrics, PrintStream stream) {
        String headline = "Messages sent to vespa (route " + metrics.getRoute() + ") :";
        stream.println(headline);
        stream.println(getDashes(headline.length()));
        printMetrics(stream, metrics);
    }
Class that takes progress from the feed and prints to a stream.
vespaclient-java/src/main/java/com/yahoo/vespafeeder/ProgressPrinter.java