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*
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
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* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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/*
* @test
* @bug 6229368
* @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());
Thread.sleep(300);
Integer derivedGaugeValue = (Integer) cm.getDerivedGauge(name);
System.out.println("Derived Gauge = " + derivedGaugeValue);
if (derivedGaugeValue.intValue() != derivedGauge[i]) {
System.out.println("Wrong derived gauge! Current value = " +
derivedGaugeValue + " Expected value = " + derivedGauge[i]);
System.out.println("\nStop monitoring...");
cm.stop();
throw new IllegalArgumentException("wrong derived gauge");
}
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");
}
Thread.sleep(300);
}
// 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);
}
}