J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005-2006 Sun Microsystems, Inc. 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 20 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 21 | * have any questions. |
| 22 | */ |
| 23 | |
| 24 | /* |
| 25 | * @test |
| 26 | * @bug 6222826 6379712 |
| 27 | * @summary Test that all monitors will be well started when sharing |
| 28 | * a single thread pool. |
| 29 | * @author Luis-Miguel Alventosa |
| 30 | * @run clean ThreadPoolTest |
| 31 | * @run build ThreadPoolTest |
| 32 | * @run main/othervm/timeout=300 ThreadPoolTest 1 |
| 33 | * @run main/othervm/timeout=300 ThreadPoolTest 2 |
| 34 | * @run main/othervm/timeout=300 ThreadPoolTest 3 |
| 35 | * @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=5 ThreadPoolTest 1 |
| 36 | * @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=5 ThreadPoolTest 2 |
| 37 | * @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=5 ThreadPoolTest 3 |
| 38 | * @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=-5 ThreadPoolTest 1 |
| 39 | * @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=-5 ThreadPoolTest 2 |
| 40 | * @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=-5 ThreadPoolTest 3 |
| 41 | */ |
| 42 | |
| 43 | import java.util.concurrent.atomic.AtomicInteger; |
| 44 | import javax.management.MBeanServer; |
| 45 | import javax.management.MBeanServerFactory; |
| 46 | import javax.management.Notification; |
| 47 | import javax.management.NotificationListener; |
| 48 | import javax.management.ObjectName; |
| 49 | import javax.management.monitor.CounterMonitor; |
| 50 | import javax.management.monitor.GaugeMonitor; |
| 51 | import javax.management.monitor.Monitor; |
| 52 | import javax.management.monitor.MonitorNotification; |
| 53 | import javax.management.monitor.StringMonitor; |
| 54 | |
| 55 | public class ThreadPoolTest { |
| 56 | |
| 57 | static int maxPoolSize; |
| 58 | static int nTasks; |
| 59 | private static Waiter waiter; |
| 60 | |
| 61 | static final long MAX_WAITING_TIME = 10000; |
| 62 | |
| 63 | // MBean class |
| 64 | public class ObservedObject implements ObservedObjectMBean { |
| 65 | private boolean called = false; |
| 66 | public Integer getInteger() { |
| 67 | inform("getInteger()"); |
| 68 | return 0; |
| 69 | } |
| 70 | public Double getDouble() { |
| 71 | inform("getDouble()"); |
| 72 | return 0.0; |
| 73 | } |
| 74 | public String getString() { |
| 75 | inform("getString()"); |
| 76 | return ""; |
| 77 | } |
| 78 | private void inform(String prop) { |
| 79 | synchronized(waiter) { |
| 80 | if (!called) { |
| 81 | called = true; |
| 82 | waiter.count(); |
| 83 | } |
| 84 | } |
| 85 | |
| 86 | echo(">>> TASK "+prop+" is called."); |
| 87 | } |
| 88 | } |
| 89 | |
| 90 | // MBean interface |
| 91 | public interface ObservedObjectMBean { |
| 92 | public Integer getInteger(); |
| 93 | public Double getDouble(); |
| 94 | public String getString(); |
| 95 | } |
| 96 | |
| 97 | /** |
| 98 | * Run test |
| 99 | */ |
| 100 | public int runTest(int monitorType) throws Exception { |
| 101 | |
| 102 | |
| 103 | ObjectName[] mbeanNames = new ObjectName[nTasks]; |
| 104 | ObservedObject[] monitored = new ObservedObject[nTasks]; |
| 105 | ObjectName[] monitorNames = new ObjectName[nTasks]; |
| 106 | Monitor[] monitor = new Monitor[nTasks]; |
| 107 | String[] attributes = { "Integer", "Double", "String" }; |
| 108 | |
| 109 | try { |
| 110 | echo(">>> CREATE MBeanServer"); |
| 111 | MBeanServer server = MBeanServerFactory.newMBeanServer(); |
| 112 | |
| 113 | String domain = server.getDefaultDomain(); |
| 114 | |
| 115 | for (int i = 0; i < nTasks; i++) { |
| 116 | mbeanNames[i] = |
| 117 | new ObjectName(":type=ObservedObject,instance=" + (i + 1)); |
| 118 | monitored[i] = new ObservedObject(); |
| 119 | echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString()); |
| 120 | server.registerMBean(monitored[i], mbeanNames[i]); |
| 121 | switch (monitorType) { |
| 122 | case 1: |
| 123 | monitorNames[i] = new ObjectName(":type=CounterMonitor," + |
| 124 | "instance=" + (i + 1)); |
| 125 | monitor[i] = new CounterMonitor(); |
| 126 | break; |
| 127 | case 2: |
| 128 | monitorNames[i] = new ObjectName(":type=GaugeMonitor," + |
| 129 | "instance=" + (i + 1)); |
| 130 | monitor[i] = new GaugeMonitor(); |
| 131 | break; |
| 132 | case 3: |
| 133 | monitorNames[i] = new ObjectName(":type=StringMonitor," + |
| 134 | "instance=" + (i + 1)); |
| 135 | monitor[i] = new StringMonitor(); |
| 136 | break; |
| 137 | default: |
| 138 | echo("Unsupported monitor type"); |
| 139 | return 1; |
| 140 | } |
| 141 | echo(">>> CREATE Monitor = " + monitorNames[i].toString()); |
| 142 | server.registerMBean(monitor[i], monitorNames[i]); |
| 143 | monitor[i].addObservedObject(mbeanNames[i]); |
| 144 | monitor[i].setObservedAttribute(attributes[monitorType-1]); |
| 145 | monitor[i].setGranularityPeriod(50); |
| 146 | monitor[i].start(); |
| 147 | } |
| 148 | |
| 149 | if (!waiter.waiting(MAX_WAITING_TIME)) { |
| 150 | echo("Error, not all "+nTasks+" monitor tasks are called after " |
| 151 | +MAX_WAITING_TIME); |
| 152 | return 1; |
| 153 | } |
| 154 | } finally { |
| 155 | for (int i = 0; i < nTasks; i++) |
| 156 | if (monitor[i] != null) |
| 157 | monitor[i].stop(); |
| 158 | } |
| 159 | |
| 160 | echo("All "+nTasks+" monitors are called."); |
| 161 | return 0; |
| 162 | } |
| 163 | |
| 164 | /* |
| 165 | * Print message |
| 166 | */ |
| 167 | private static void echo(String message) { |
| 168 | System.out.println(message); |
| 169 | } |
| 170 | |
| 171 | /* |
| 172 | * Standalone entry point. |
| 173 | * |
| 174 | * Run the test and report to stdout. |
| 175 | */ |
| 176 | public static void main (String args[]) throws Exception { |
| 177 | Integer size = Integer.getInteger("jmx.x.monitor.maximum.pool.size"); |
| 178 | if (size == null) { |
| 179 | maxPoolSize = 10; |
| 180 | echo(">>> MAXIMUM POOL SIZE = 10 [default value]"); |
| 181 | } else { |
| 182 | maxPoolSize = size.intValue() < 1 ? 1 : size.intValue(); |
| 183 | echo(">>> MAXIMUM POOL SIZE = " + maxPoolSize); |
| 184 | } |
| 185 | |
| 186 | nTasks = maxPoolSize + 2; |
| 187 | waiter = new Waiter(nTasks); |
| 188 | ThreadPoolTest test = new ThreadPoolTest(); |
| 189 | |
| 190 | int error = test.runTest(Integer.parseInt(args[0])); |
| 191 | if (error > 0) { |
| 192 | echo(">>> Unhappy Bye, Bye!"); |
| 193 | throw new IllegalStateException( |
| 194 | "Test FAILED: Unexpected Maximum Pool Size Overflow!"); |
| 195 | } else { |
| 196 | echo(">>> Happy Bye, Bye!"); |
| 197 | } |
| 198 | } |
| 199 | |
| 200 | private static class Waiter { |
| 201 | public Waiter(int waitedNB) { |
| 202 | this.waitedNB = waitedNB; |
| 203 | } |
| 204 | |
| 205 | public void count() { |
| 206 | synchronized(this) { |
| 207 | counted++; |
| 208 | |
| 209 | if (counted == waitedNB) { |
| 210 | this.notifyAll(); |
| 211 | } |
| 212 | } |
| 213 | } |
| 214 | |
| 215 | public boolean waiting(long timeout) { |
| 216 | final long startTime = System.currentTimeMillis(); |
| 217 | long toWait = timeout; |
| 218 | |
| 219 | synchronized(this) { |
| 220 | while(counted < waitedNB && toWait > 0) { |
| 221 | try { |
| 222 | this.wait(toWait); |
| 223 | } catch (InterruptedException ire) { |
| 224 | break; |
| 225 | } |
| 226 | |
| 227 | toWait = timeout - |
| 228 | (System.currentTimeMillis() - startTime); |
| 229 | } |
| 230 | } |
| 231 | |
| 232 | return counted == waitedNB; |
| 233 | } |
| 234 | |
| 235 | private int waitedNB; |
| 236 | private int counted = 0; |
| 237 | } |
| 238 | } |