| /* |
| * Copyright (c) 2005, 2015, Oracle and/or its affiliates. All rights reserved. |
| * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| * |
| * This code is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License version 2 only, as |
| * published by the Free Software Foundation. |
| * |
| * This code is distributed in the hope that it will be useful, but WITHOUT |
| * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| * 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). |
| * |
| * You should have received a copy of the GNU General Public License version |
| * 2 along with this work; if not, write to the Free Software Foundation, |
| * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| * |
| * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| * or visit www.oracle.com if you need additional information or have any |
| * questions. |
| */ |
| |
| /* |
| * @test |
| * @bug 6222826 6379712 |
| * @summary Test that all monitors will be well started when sharing |
| * a single thread pool. |
| * @author Luis-Miguel Alventosa |
| * |
| * @run clean ThreadPoolTest |
| * @run build ThreadPoolTest |
| * @run main/othervm/timeout=300 ThreadPoolTest 1 |
| * @run main/othervm/timeout=300 ThreadPoolTest 2 |
| * @run main/othervm/timeout=300 ThreadPoolTest 3 |
| * @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=5 ThreadPoolTest 1 |
| * @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=5 ThreadPoolTest 2 |
| * @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=5 ThreadPoolTest 3 |
| * @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=-5 ThreadPoolTest 1 |
| * @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=-5 ThreadPoolTest 2 |
| * @run main/othervm/timeout=300 -Djmx.x.monitor.maximum.pool.size=-5 ThreadPoolTest 3 |
| */ |
| |
| import java.util.concurrent.atomic.AtomicInteger; |
| import javax.management.MBeanServer; |
| import javax.management.MBeanServerFactory; |
| import javax.management.Notification; |
| import javax.management.NotificationListener; |
| import javax.management.ObjectName; |
| import javax.management.monitor.CounterMonitor; |
| import javax.management.monitor.GaugeMonitor; |
| import javax.management.monitor.Monitor; |
| import javax.management.monitor.MonitorNotification; |
| import javax.management.monitor.StringMonitor; |
| |
| public class ThreadPoolTest { |
| |
| static int maxPoolSize; |
| static int nTasks; |
| private static Waiter waiter; |
| |
| static final long MAX_WAITING_TIME = 10000; |
| |
| // MBean class |
| public class ObservedObject implements ObservedObjectMBean { |
| private boolean called = false; |
| public Integer getInteger() { |
| inform("getInteger()"); |
| return 0; |
| } |
| public Double getDouble() { |
| inform("getDouble()"); |
| return 0.0; |
| } |
| public String getString() { |
| inform("getString()"); |
| return ""; |
| } |
| private void inform(String prop) { |
| synchronized(waiter) { |
| if (!called) { |
| called = true; |
| waiter.count(); |
| } |
| } |
| |
| echo(">>> TASK "+prop+" is called."); |
| } |
| } |
| |
| // MBean interface |
| public interface ObservedObjectMBean { |
| public Integer getInteger(); |
| public Double getDouble(); |
| public String getString(); |
| } |
| |
| /** |
| * Run test |
| */ |
| public int runTest(int monitorType) throws Exception { |
| |
| |
| ObjectName[] mbeanNames = new ObjectName[nTasks]; |
| ObservedObject[] monitored = new ObservedObject[nTasks]; |
| ObjectName[] monitorNames = new ObjectName[nTasks]; |
| Monitor[] monitor = new Monitor[nTasks]; |
| String[] attributes = { "Integer", "Double", "String" }; |
| |
| try { |
| echo(">>> CREATE MBeanServer"); |
| MBeanServer server = MBeanServerFactory.newMBeanServer(); |
| |
| String domain = server.getDefaultDomain(); |
| |
| for (int i = 0; i < nTasks; i++) { |
| mbeanNames[i] = |
| new ObjectName(":type=ObservedObject,instance=" + (i + 1)); |
| monitored[i] = new ObservedObject(); |
| echo(">>> CREATE ObservedObject = " + mbeanNames[i].toString()); |
| server.registerMBean(monitored[i], mbeanNames[i]); |
| switch (monitorType) { |
| case 1: |
| monitorNames[i] = new ObjectName(":type=CounterMonitor," + |
| "instance=" + (i + 1)); |
| 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(); |
| break; |
| default: |
| echo("Unsupported monitor type"); |
| return 1; |
| } |
| echo(">>> CREATE Monitor = " + monitorNames[i].toString()); |
| server.registerMBean(monitor[i], monitorNames[i]); |
| monitor[i].addObservedObject(mbeanNames[i]); |
| monitor[i].setObservedAttribute(attributes[monitorType-1]); |
| monitor[i].setGranularityPeriod(50); |
| monitor[i].start(); |
| } |
| |
| if (!waiter.waiting(MAX_WAITING_TIME)) { |
| echo("Error, not all "+nTasks+" monitor tasks are called after " |
| +MAX_WAITING_TIME); |
| return 1; |
| } |
| } finally { |
| for (int i = 0; i < nTasks; i++) |
| if (monitor[i] != null) |
| monitor[i].stop(); |
| } |
| |
| echo("All "+nTasks+" monitors are called."); |
| return 0; |
| } |
| |
| /* |
| * Print message |
| */ |
| private static void echo(String message) { |
| System.out.println(message); |
| } |
| |
| /* |
| * Standalone entry point. |
| * |
| * Run the test and report to stdout. |
| */ |
| public static void main (String args[]) throws Exception { |
| Integer size = Integer.getInteger("jmx.x.monitor.maximum.pool.size"); |
| if (size == null) { |
| maxPoolSize = 10; |
| echo(">>> MAXIMUM POOL SIZE = 10 [default value]"); |
| } else { |
| maxPoolSize = size.intValue() < 1 ? 1 : size.intValue(); |
| echo(">>> MAXIMUM POOL SIZE = " + maxPoolSize); |
| } |
| |
| nTasks = maxPoolSize + 2; |
| waiter = new Waiter(nTasks); |
| ThreadPoolTest test = new ThreadPoolTest(); |
| |
| int error = test.runTest(Integer.parseInt(args[0])); |
| if (error > 0) { |
| echo(">>> Unhappy Bye, Bye!"); |
| throw new IllegalStateException( |
| "Test FAILED: Unexpected Maximum Pool Size Overflow!"); |
| } else { |
| echo(">>> Happy Bye, Bye!"); |
| } |
| } |
| |
| private static class Waiter { |
| public Waiter(int waitedNB) { |
| this.waitedNB = waitedNB; |
| } |
| |
| public void count() { |
| synchronized(this) { |
| counted++; |
| |
| if (counted == waitedNB) { |
| this.notifyAll(); |
| } |
| } |
| } |
| |
| public boolean waiting(long timeout) { |
| final long startTime = System.currentTimeMillis(); |
| long toWait = timeout; |
| |
| synchronized(this) { |
| while(counted < waitedNB && toWait > 0) { |
| try { |
| this.wait(toWait); |
| } catch (InterruptedException ire) { |
| break; |
| } |
| |
| toWait = timeout - |
| (System.currentTimeMillis() - startTime); |
| } |
| } |
| |
| return counted == waitedNB; |
| } |
| |
| private int waitedNB; |
| private int counted = 0; |
| } |
| } |