Examples of GaugeMonitor

javax.management.monitor.GaugeMonitor
The gauge monitor service. @author Adrian Brock @version $Revision: 1.2 $

Examples of javax.management.monitor.GaugeMonitor

     */
    public int gaugeMonitorNotification(int testCase)
        throws Exception {


        gaugeMessageReceived = false;
        GaugeMonitor gaugeMonitor = null;
        try {
            MBeanServer server = MBeanServerFactory.newMBeanServer();


            String domain = server.getDefaultDomain();


            // Create a new GaugeMonitor MBean and add it to the MBeanServer.
            //
            echo(">>> CREATE a new GaugeMonitor MBean");
            ObjectName gaugeMonitorName = new ObjectName(
                            domain + ":type=" + GaugeMonitor.class.getName());
            gaugeMonitor = new GaugeMonitor();
            server.registerMBean(gaugeMonitor, gaugeMonitorName);


            echo(">>> ADD a listener to the GaugeMonitor");
            gaugeMonitor.addNotificationListener(this, null, null);


            //
            // MANAGEMENT OF A STANDARD MBEAN
            //


            echo(">>> CREATE a new ObservedObject MBean");


            ObjectName obsObjName =
                ObjectName.getInstance(domain + ":type=ObservedObject");
            ObservedObject obsObj = new ObservedObject();
            ComplexAttribute ca = new ComplexAttribute();
            switch (testCase) {
                case 1:
                    obsObj.da = 0.0;
                    break;
                case 2:
                    ca.setDoubleAttribute(0.0);
                    obsObj.setComplexAttribute(ca);
                    break;
                case 3:
                    ca.setArrayAttribute(new Integer[0]);
                    obsObj.setComplexAttribute(ca);
                    break;
            }
            server.registerMBean(obsObj, obsObjName);


            echo(">>> SET the attributes of the GaugeMonitor:");


            gaugeMonitor.addObservedObject(obsObjName);
            echo("\tATTRIBUTE \"ObservedObject\"    = " + obsObjName);


            switch (testCase) {
                case 1:
                    gaugeMonitor.setObservedAttribute(
                         "CompositeDataAttribute.DoubleAttribute");
                    echo("\tATTRIBUTE \"ObservedAttribute\" = " +
                         "CompositeDataAttribute.DoubleAttribute");
                    break;
                case 2:
                    gaugeMonitor.setObservedAttribute(
                         "ComplexAttribute.doubleAttribute");
                    echo("\tATTRIBUTE \"ObservedAttribute\" = " +
                         "ComplexAttribute.doubleAttribute");
                    break;
                case 3:
                    gaugeMonitor.setObservedAttribute(
                         "ComplexAttribute.arrayAttribute.length");
                    echo("\tATTRIBUTE \"ObservedAttribute\" = " +
                         "ComplexAttribute.arrayAttribute.length");
                    break;
            }


            gaugeMonitor.setNotifyLow(false);
            gaugeMonitor.setNotifyHigh(true);
            echo("\tATTRIBUTE \"Notify Low  Flag\"  = false");
            echo("\tATTRIBUTE \"Notify High Flag\"  = true");


            switch (testCase) {
                case 1:
                case 2:
                    Double highThresholdD = 3.0, lowThresholdD = 2.5;
                    gaugeMonitor.setThresholds(highThresholdD, lowThresholdD);
                    echo("\tATTRIBUTE \"Low  Threshold\"    = " + lowThresholdD);
                    echo("\tATTRIBUTE \"High Threshold\"    = " + highThresholdD);
                    break;
                case 3:
                    Integer highThreshold = 2, lowThreshold = 1;
                    gaugeMonitor.setThresholds(highThreshold, lowThreshold);
                    echo("\tATTRIBUTE \"Low  Threshold\"    = " + lowThreshold);
                    echo("\tATTRIBUTE \"High Threshold\"    = " + highThreshold);
                    break;
            }


            int granularityperiod = 500;
            gaugeMonitor.setGranularityPeriod(granularityperiod);
            echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);


            echo(">>> START the GaugeMonitor");
            gaugeMonitor.start();


            // Wait for granularity period (multiplied by 2 for sure)
            //
            Thread.sleep(granularityperiod * 2);


            switch (testCase) {
                case 1:
                    obsObj.da = 2.0;
                    break;
                case 2:
                    ca.setDoubleAttribute(2.0);
                    break;
                case 3:
                    ca.setArrayAttribute(new Integer[2]);
                    break;
            }


            // Wait for granularity period (multiplied by 2 for sure)
            //
            Thread.sleep(granularityperiod * 2);


            switch (testCase) {
                case 1:
                    obsObj.da = 4.0;
                    break;
                case 2:
                    ca.setDoubleAttribute(4.0);
                    break;
                case 3:
                    ca.setArrayAttribute(new Integer[4]);
                    break;
            }


            // Wait for granularity period (multiplied by 2 for sure)
            //
            Thread.sleep(granularityperiod * 2);


            switch (testCase) {
                case 1:
                    obsObj.da = 6.0;
                    break;
                case 2:
                    ca.setDoubleAttribute(6.0);
                    break;
                case 3:
                    ca.setArrayAttribute(new Integer[6]);
                    break;
            }


            // Check if notification was received
            //
            if (gaugeMessageReceived) {
                echo("\tOK: GaugeMonitor notification received");
            } else {
                echo("\tKO: GaugeMonitor notification missed or not emitted");
                return 1;
            }
        } finally {
            if (gaugeMonitor != null)
                gaugeMonitor.stop();
        }


        return 0;
    }

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Examples of javax.management.monitor.GaugeMonitor

    /**
     * Update the gauge and check for notifications
     */
    public int gaugeMonitorNotification() throws Exception {


        GaugeMonitor gaugeMonitor = new GaugeMonitor();
        try {
            // Create a new GaugeMonitor MBean and add it to the MBeanServer.
            //
            echo(">>> CREATE a new GaugeMonitor MBean");
            ObjectName gaugeMonitorName = new ObjectName(
                            domain + ":type=" + GaugeMonitor.class.getName());
            server.registerMBean(gaugeMonitor, gaugeMonitorName);


            echo(">>> ADD a listener to the GaugeMonitor");
            gaugeMonitor.addNotificationListener(this, null, null);


            //
            // MANAGEMENT OF A STANDARD MBEAN
            //


            echo(">>> SET the attributes of the GaugeMonitor:");


            gaugeMonitor.addObservedObject(obsObjName);
            echo("\tATTRIBUTE \"ObservedObject\"    = " + obsObjName);


            gaugeMonitor.setObservedAttribute("IntegerAttribute");
            echo("\tATTRIBUTE \"ObservedAttribute\" = IntegerAttribute");


            gaugeMonitor.setNotifyLow(false);
            gaugeMonitor.setNotifyHigh(false);
            echo("\tATTRIBUTE \"Notify Low  Flag\"  = false");
            echo("\tATTRIBUTE \"Notify High Flag\"  = false");


            Integer highThreshold = 3, lowThreshold = 2;
            gaugeMonitor.setThresholds(highThreshold, lowThreshold);
            echo("\tATTRIBUTE \"Low  Threshold\"    = " + lowThreshold);
            echo("\tATTRIBUTE \"High Threshold\"    = " + highThreshold);


            int granularityperiod = 500;
            gaugeMonitor.setGranularityPeriod(granularityperiod);
            echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);


            echo(">>> START the GaugeMonitor");
            gaugeMonitor.start();


            // Wait for granularity period (multiplied by 2 for sure)
            //
            Thread.sleep(granularityperiod * 2);


            // Check if notification was received
            //
            if (messageReceived) {
                echo("\tOK: GaugeMonitor got RUNTIME_ERROR notification!");
            } else {
                echo("\tKO: GaugeMonitor did not get " +
                     "RUNTIME_ERROR notification!");
                return 1;
            }
        } finally {
            messageReceived = false;
            if (gaugeMonitor != null)
                gaugeMonitor.stop();
        }


        return 0;
    }

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Examples of javax.management.monitor.GaugeMonitor

                    monitor[i] = new CounterMonitor();
                    break;
                case 2:
                    monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
                                                     "instance=" + (i + 1));
                    monitor[i] = new GaugeMonitor();
                    break;
                case 3:
                    monitorNames[i] = new ObjectName(":type=StringMonitor," +
                                                     "instance=" + (i + 1));
                    monitor[i] = new StringMonitor();

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Examples of javax.management.monitor.GaugeMonitor

                    monitor[i] = new CounterMonitor();
                    break;
                case 2:
                    monitorNames[i] = new ObjectName(":type=GaugeMonitor," +
                                                     "instance=" + (i + 1));
                    monitor[i] = new GaugeMonitor();
                    break;
                case 3:
                    monitorNames[i] = new ObjectName(":type=StringMonitor," +
                                                     "instance=" + (i + 1));
                    monitor[i] = new StringMonitor();

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Examples of javax.management.monitor.GaugeMonitor


        void run() throws Exception {
            final MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
            final ObjectName observedName = new ObjectName("a:b=c");
            final ObjectName monitorName = new ObjectName("a:type=Monitor");
            mbs.registerMBean(new GaugeMonitor(), monitorName);
            final GaugeMonitorMBean monitorProxy =
                JMX.newMBeanProxy(mbs, monitorName, GaugeMonitorMBean.class);
            final TestMBean observedProxy =
                JMX.newMBeanProxy(mbs, observedName, TestMBean.class);

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Examples of javax.management.monitor.GaugeMonitor

    public static void test(String attr) throws Exception {
        System.err.println("Testing "+ attr);
        final MBeanServer server = MBeanServerFactory.createMBeanServer();
        final ObjectName mbean = new ObjectName("ugly:type=cr.p");
        final My my = new My();
        final GaugeMonitor mon2 = new GaugeMonitor();
        final ObjectName mon2n = new ObjectName("mon1:type=GaugeMonitor");
        final CounterMonitor mon1 = new CounterMonitor();
        final ObjectName mon1n = new ObjectName("mon2:type=CounterMonitor");
        
        server.registerMBean(my, mbean);
        server.registerMBean(mon1, mon1n);
        server.registerMBean(mon2, mon2n);
        
        mon1.addObservedObject(mbean);
        mon1.setGranularityPeriod(60000); // 60 sec...
        mon1.setObservedAttribute(attr);
        mon1.setDifferenceMode(true);
        check(attr,server,mon1n,mbean);
        
        mon2.addObservedObject(mbean);
        mon2.setGranularityPeriod(60000); // 60 sec...
        mon2.setObservedAttribute(attr);
        mon2.setDifferenceMode(true);
        check(attr,server,mon2n,mbean);
        
        final long approxStart = System.currentTimeMillis(); 
        mon1.start();
        mon2.start();
        
        try {
            check(attr,server,mon1n,mbean,approxStart);
            check(attr,server,mon2n,mbean,approxStart);
            check(attr,server,mon1n,mbean,approxStart);
            check(attr,server,mon2n,mbean,approxStart);




            mon1.setGranularityPeriod(5);
            mon2.setGranularityPeriod(5);


            my.cdl.await(1000, TimeUnit.MILLISECONDS);
            if (my.cdl.getCount() > 0) 
                throw new Exception(attr+": Count down not reached!");
            
            // just check that we don't get an exception now...
            System.err.println(attr+": [" + mon1n+
                    "] DerivedGauge is now "+
                    server.getAttribute(mon1n, "DerivedGauge"));
            System.err.println(attr+": [" + mon2n+
                    "] DerivedGauge is now "+
                    server.getAttribute(mon2n, "DerivedGauge"));
        } finally {
           try {mon1.stop();} catch (Exception x) {}
           try {mon2.stop();} catch (Exception x) {}
        }
    }

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Examples of javax.management.monitor.GaugeMonitor

    /**
     * Update the gauge and check for notifications
     */
    public int gaugeMonitorNotification() throws Exception {


        GaugeMonitor gaugeMonitor = new GaugeMonitor();
        try {
            // Create a new GaugeMonitor MBean and add it to the MBeanServer.
            //
            echo(">>> CREATE a new GaugeMonitor MBean");
            ObjectName gaugeMonitorName = new ObjectName(
                            domain + ":type=" + GaugeMonitor.class.getName());
            server.registerMBean(gaugeMonitor, gaugeMonitorName);


            echo(">>> ADD a listener to the GaugeMonitor");
            gaugeMonitor.addNotificationListener(this, null, null);


            //
            // MANAGEMENT OF A STANDARD MBEAN
            //


            echo(">>> SET the attributes of the GaugeMonitor:");


            gaugeMonitor.addObservedObject(obsObjName);
            echo("\tATTRIBUTE \"ObservedObject\"    = " + obsObjName);


            gaugeMonitor.setObservedAttribute("IntegerAttribute");
            echo("\tATTRIBUTE \"ObservedAttribute\" = IntegerAttribute");


            gaugeMonitor.setNotifyLow(false);
            gaugeMonitor.setNotifyHigh(false);
            echo("\tATTRIBUTE \"Notify Low  Flag\"  = false");
            echo("\tATTRIBUTE \"Notify High Flag\"  = false");


            Integer highThreshold = 3, lowThreshold = 2;
            gaugeMonitor.setThresholds(highThreshold, lowThreshold);
            echo("\tATTRIBUTE \"Low  Threshold\"    = " + lowThreshold);
            echo("\tATTRIBUTE \"High Threshold\"    = " + highThreshold);


            int granularityperiod = 500;
            gaugeMonitor.setGranularityPeriod(granularityperiod);
            echo("\tATTRIBUTE \"GranularityPeriod\" = " + granularityperiod);


            echo(">>> START the GaugeMonitor");
            gaugeMonitor.start();


            // Wait for granularity period (multiplied by 2 for sure)
            //
            Thread.sleep(granularityperiod * 2);


            // Check if notification was received
            //
            if (messageReceived) {
                echo("\tOK: GaugeMonitor got RUNTIME_ERROR notification!");
            } else {
                echo("\tKO: GaugeMonitor did not get " +
                     "RUNTIME_ERROR notification!");
                return 1;
            }
        } finally {
            messageReceived = false;
            if (gaugeMonitor != null)
                gaugeMonitor.stop();
        }


        return 0;
    }

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