CounterMonitorThresholdTest.java revision 9330:8b1f1c2a400f 
1/*
2 * Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24/*
25 * @test
26 * @bug 6229368 8025207
27 * @summary Wrong threshold value in CounterMonitor with offset and modulus.
28 * @author Luis-Miguel Alventosa
29 * @run clean CounterMonitorThresholdTest
30 * @run build CounterMonitorThresholdTest
31 * @run main CounterMonitorThresholdTest
32 */
33
34import java.lang.management.ManagementFactory;
35import javax.management.MBeanServer;
36import javax.management.MBeanServerInvocationHandler;
37import javax.management.Notification;
38import javax.management.NotificationEmitter;
39import javax.management.NotificationListener;
40import javax.management.ObjectName;
41import javax.management.monitor.CounterMonitor;
42import javax.management.monitor.CounterMonitorMBean;
43import javax.management.monitor.MonitorNotification;
44
45public class CounterMonitorThresholdTest {
46
47    // Offset = 1
48    private static int counter1[]      = { 0, 1, 2, 3, 4, 4, 5, 5, 0, 1, 2, 3, 4, 5, 0, 1 };
49    private static int derivedGauge1[] = { 0, 1, 2, 3, 4, 4, 5, 5, 0, 1, 2, 3, 4, 5, 0, 1 };
50    private static int threshold1[]    = { 1, 2, 3, 4, 5, 5, 1, 1, 1, 2, 3, 4, 5, 1, 1, 2 };
51
52    // Offset = 3
53    private static int counter2[]      = { 0, 1, 2, 3, 3, 4, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1 };
54    private static int derivedGauge2[] = { 0, 1, 2, 3, 3, 4, 4, 5, 0, 1, 2, 3, 4, 5, 0, 1 };
55    private static int threshold2[]    = { 1, 4, 4, 4, 4, 1, 1, 1, 1, 4, 4, 4, 1, 1, 1, 4 };
56
57    public interface TestMBean {
58        public int getCounter();
59        public void setCounter(int count);
60    }
61
62    public static class Test implements TestMBean {
63        public int getCounter() {
64            return count;
65        }
66        public void setCounter(int count) {
67            this.count = count;
68        }
69        private int count = 0;
70    }
71
72    public static class Listener implements NotificationListener {
73        public void handleNotification(Notification n, Object hb) {
74            System.out.println("\tReceived notification: " + n.getType());
75            if (n instanceof MonitorNotification) {
76                MonitorNotification mn = (MonitorNotification) n;
77                System.out.println("\tSource: " +
78                    mn.getSource());
79                System.out.println("\tType: " +
80                    mn.getType());
81                System.out.println("\tTimeStamp: " +
82                    mn.getTimeStamp());
83                System.out.println("\tObservedObject: " +
84                    mn.getObservedObject());
85                System.out.println("\tObservedAttribute: " +
86                    mn.getObservedAttribute());
87                System.out.println("\tDerivedGauge: " +
88                    mn.getDerivedGauge());
89                System.out.println("\tTrigger: " +
90                    mn.getTrigger());
91            }
92        }
93    }
94
95    public static void runTest(int offset,
96                               int counter[],
97                               int derivedGauge[],
98                               int threshold[]) throws Exception {
99        // Retrieve the platform MBean server
100        //
101        System.out.println("\nRetrieve the platform MBean server");
102        MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
103        String domain = mbs.getDefaultDomain();
104
105        // Create and register TestMBean
106        //
107        ObjectName name =
108            new ObjectName(domain +
109                           ":type=" + Test.class.getName() +
110                           ",offset=" + offset);
111        mbs.createMBean(Test.class.getName(), name);
112        TestMBean mbean = (TestMBean)
113            MBeanServerInvocationHandler.newProxyInstance(
114                mbs, name, TestMBean.class, false);
115
116        // Create and register CounterMonitorMBean
117        //
118        ObjectName cmn =
119            new ObjectName(domain +
120                           ":type=" + CounterMonitor.class.getName() +
121                           ",offset=" + offset);
122        CounterMonitor m = new CounterMonitor();
123        mbs.registerMBean(m, cmn);
124        CounterMonitorMBean cm = (CounterMonitorMBean)
125            MBeanServerInvocationHandler.newProxyInstance(
126                mbs, cmn, CounterMonitorMBean.class, true);
127        ((NotificationEmitter) cm).addNotificationListener(
128            new Listener(), null, null);
129        cm.addObservedObject(name);
130        cm.setObservedAttribute("Counter");
131        cm.setGranularityPeriod(100);
132        cm.setInitThreshold(1);
133        cm.setOffset(offset);
134        cm.setModulus(5);
135        cm.setNotify(true);
136
137        // Start the monitor
138        //
139        System.out.println("\nStart monitoring...");
140        cm.start();
141
142        // Play with counter
143        //
144        for (int i = 0; i < counter.length; i++) {
145            mbean.setCounter(counter[i]);
146            System.out.println("\nCounter = " + mbean.getCounter());
147            Integer derivedGaugeValue;
148            // either pass or test timeout (killed by test harness)
149            // see 8025207
150            do {
151                Thread.sleep(150);
152                derivedGaugeValue = (Integer) cm.getDerivedGauge(name);
153            } while (derivedGaugeValue.intValue() != derivedGauge[i]);
154
155            Number thresholdValue = cm.getThreshold(name);
156            System.out.println("Threshold = " + thresholdValue);
157            if (thresholdValue.intValue() != threshold[i]) {
158                System.out.println("Wrong threshold! Current value = " +
159                    thresholdValue + " Expected value = " + threshold[i]);
160                System.out.println("\nStop monitoring...");
161                cm.stop();
162                throw new IllegalArgumentException("wrong threshold");
163            }
164        }
165
166        // Stop the monitor
167        //
168        System.out.println("\nStop monitoring...");
169        cm.stop();
170    }
171
172    public static void main(String[] args) throws Exception {
173        runTest(1, counter1, derivedGauge1, threshold1);
174        runTest(3, counter2, derivedGauge2, threshold2);
175    }
176}
177