Method main

storm-core/src/jvm/org/apache/storm/command/Monitor.java:20–50

(String[] args)

public class Monitor {

    public static void main(String[] args) throws Exception {
        Map<String, Object> cl = CLI.opt("i", "interval", 4, CLI.AS_INT)
                                    .opt("m", "component", null)
                                    .opt("s", "stream", "default")
                                    .opt("w", "watch", "emitted")
                                    .arg("topologyName", CLI.FIRST_WINS)
                                    .parse(args);
        final org.apache.storm.utils.Monitor monitor = new org.apache.storm.utils.Monitor();
        Integer interval = (Integer) cl.get("i");
        if (null != interval) {
            monitor.setInterval(interval);
        }
        String component = (String) cl.get("m");
        if (null != component) {
            monitor.setComponent(component);
        }
        String stream = (String) cl.get("s");
        if (null != stream) {
            monitor.setStream(stream);
        }
        String watch = (String) cl.get("w");
        if (null != watch) {
            monitor.setWatch(watch);
        }
        String topologyName = (String) cl.get("topologyName");
        if (null != topologyName) {
            monitor.setTopology(topologyName);
        }

        NimbusClient.withConfiguredClient(nimbus -> monitor.metrics(nimbus));
    }
}