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/*

 * @test

 * @bug 6229368 8025207

 * @summary Wrong threshold value in CounterMonitor with offset and modulus.

 * @author Luis-Miguel Alventosa

 * @run clean CounterMonitorThresholdTest

 * @run build CounterMonitorThresholdTest

 * @run main CounterMonitorThresholdTest

 */

import java.lang.management.ManagementFactory;

import javax.management.MBeanServer;

import javax.management.MBeanServerInvocationHandler;

import javax.management.Notification;

import javax.management.NotificationEmitter;

import javax.management.NotificationListener;

import javax.management.ObjectName;

import javax.management.monitor.CounterMonitor;

import javax.management.monitor.CounterMonitorMBean;

import javax.management.monitor.MonitorNotification;

public class CounterMonitorThresholdTest {

    // Offset = 1

    private static int counter1[]      = { 0, 1, 2, 3, 4, 4, 5, 5, 0, 1, 2, 3, 4, 5, 0, 1 };

    private static int derivedGauge1[] = { 0, 1, 2, 3, 4, 4, 5, 5, 0, 1, 2, 3, 4, 5, 0, 1 };

    private static int threshold1[]    = { 1, 2, 3, 4, 5, 5, 1, 1, 1, 2, 3, 4, 5, 1, 1, 2 };

    // Offset = 3

    private static int counter2[]      = { 0, 1, 2, 3, 3, 4, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1 };

    private static int derivedGauge2[] = { 0, 1, 2, 3, 3, 4, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1 };

    private static int threshold2[]    = { 1, 4, 4, 4, 4, 1, 1, 1, 1, 4, 4, 4, 1, 1, 1, 4 };

    public interface TestMBean {

        public int getCounter();

        public void setCounter(int count);

    }

    public static class Test implements TestMBean {

        public int getCounter() {

            return count;

        }

        public void setCounter(int count) {

            this.count = count;

        }

        private int count = 0;

    }

    public static class Listener implements NotificationListener {

        public void handleNotification(Notification n, Object hb) {

            System.out.println("\tReceived notification: " + n.getType());

            if (n instanceof MonitorNotification) {

                MonitorNotification mn = (MonitorNotification) n;

                System.out.println("\tSource: " +

                    mn.getSource());

                System.out.println("\tType: " +

                    mn.getType());

                System.out.println("\tTimeStamp: " +

                    mn.getTimeStamp());

                System.out.println("\tObservedObject: " +

                    mn.getObservedObject());

                System.out.println("\tObservedAttribute: " +

                    mn.getObservedAttribute());

                System.out.println("\tDerivedGauge: " +

                    mn.getDerivedGauge());

                System.out.println("\tTrigger: " +

                    mn.getTrigger());

            }

        }

    }

    public static void runTest(int offset,

                               int counter[],

                               int derivedGauge[],

                               int threshold[]) throws Exception {

        // Retrieve the platform MBean server

        //

        System.out.println("\nRetrieve the platform MBean server");

        MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();

        String domain = mbs.getDefaultDomain();

        // Create and register TestMBean

        //

        ObjectName name =

            new ObjectName(domain +

                           ":type=" + Test.class.getName() +

                           ",offset=" + offset);

        mbs.createMBean(Test.class.getName(), name);

        TestMBean mbean = (TestMBean)

            MBeanServerInvocationHandler.newProxyInstance(

                mbs, name, TestMBean.class, false);

        // Create and register CounterMonitorMBean

        //

        ObjectName cmn =

            new ObjectName(domain +

                           ":type=" + CounterMonitor.class.getName() +

                           ",offset=" + offset);

        CounterMonitor m = new CounterMonitor();

        mbs.registerMBean(m, cmn);

        CounterMonitorMBean cm = (CounterMonitorMBean)

            MBeanServerInvocationHandler.newProxyInstance(

                mbs, cmn, CounterMonitorMBean.class, true);

        ((NotificationEmitter) cm).addNotificationListener(

            new Listener(), null, null);

        cm.addObservedObject(name);

        cm.setObservedAttribute("Counter");

        cm.setGranularityPeriod(100);

        cm.setInitThreshold(1);

        cm.setOffset(offset);

        cm.setModulus(5);

        cm.setNotify(true);

        // Start the monitor

        //

        System.out.println("\nStart monitoring...");

        cm.start();

        // Play with counter

        //

        for (int i = 0; i < counter.length; i++) {

            mbean.setCounter(counter[i]);

            System.out.println("\nCounter = " + mbean.getCounter());

            Integer derivedGaugeValue;

            // either pass or test timeout (killed by test harness)

            // see 8025207

            do {

                Thread.sleep(150);

                derivedGaugeValue = (Integer) cm.getDerivedGauge(name);

            } while (derivedGaugeValue.intValue() != derivedGauge[i]);

            Number thresholdValue = cm.getThreshold(name);

            System.out.println("Threshold = " + thresholdValue);

            if (thresholdValue.intValue() != threshold[i]) {

                System.out.println("Wrong threshold! Current value = " +

                    thresholdValue + " Expected value = " + threshold[i]);

                System.out.println("\nStop monitoring...");

                cm.stop();

                throw new IllegalArgumentException("wrong threshold");

            }

        }

        // Stop the monitor

        //

        System.out.println("\nStop monitoring...");

        cm.stop();

    }

    public static void main(String[] args) throws Exception {

        runTest(1, counter1, derivedGauge1, threshold1);

        runTest(3, counter2, derivedGauge2, threshold2);

    }

}