J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 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 | * @summary Test that we can create proxies which are NotificationEmitters. |
| 27 | * @bug 6411747 |
| 28 | * @author Daniel Fuchs |
| 29 | * @run clean NotificationEmitterProxy |
| 30 | * @run build NotificationEmitterProxy |
| 31 | * @run main NotificationEmitterProxy |
| 32 | */ |
| 33 | |
| 34 | import java.lang.management.ManagementFactory; |
| 35 | |
| 36 | import javax.management.*; |
| 37 | import javax.management.remote.*; |
| 38 | import javax.naming.NoPermissionException; |
| 39 | |
| 40 | public class NotificationEmitterProxy { |
| 41 | |
| 42 | public static class Counter { |
| 43 | int count; |
| 44 | public synchronized int count() { |
| 45 | count++; |
| 46 | notifyAll(); |
| 47 | return count; |
| 48 | } |
| 49 | public synchronized int peek() { |
| 50 | return count; |
| 51 | } |
| 52 | public synchronized int waitfor(int max, long timeout) |
| 53 | throws InterruptedException { |
| 54 | final long start = System.currentTimeMillis(); |
| 55 | while (count < max && timeout > 0) { |
| 56 | final long rest = timeout - |
| 57 | (System.currentTimeMillis() - start); |
| 58 | if (rest <= 0) break; |
| 59 | wait(rest); |
| 60 | } |
| 61 | return count; |
| 62 | } |
| 63 | } |
| 64 | |
| 65 | public static class CounterListener |
| 66 | implements NotificationListener { |
| 67 | final private Counter counter; |
| 68 | public CounterListener(Counter counter) { |
| 69 | this.counter = counter; |
| 70 | } |
| 71 | public void handleNotification(Notification notification, |
| 72 | Object handback) { |
| 73 | System.out.println("Received notif from " + handback + |
| 74 | ":\n\t" + notification); |
| 75 | counter.count(); |
| 76 | } |
| 77 | } |
| 78 | |
| 79 | public static void main(String[] args) throws Exception { |
| 80 | System.out.println("<<< Register for notification from a proxy"); |
| 81 | |
| 82 | MBeanServer mbs = ManagementFactory.getPlatformMBeanServer(); |
| 83 | final ObjectName name = new ObjectName(":class=Simple"); |
| 84 | |
| 85 | JMXServiceURL url = new JMXServiceURL("rmi", null, 0); |
| 86 | final JMXConnectorServer server = |
| 87 | JMXConnectorServerFactory.newJMXConnectorServer(url, null, mbs); |
| 88 | server.start(); |
| 89 | url = server.getAddress(); |
| 90 | |
| 91 | final JMXConnector client = JMXConnectorFactory.connect(url); |
| 92 | |
| 93 | final Counter counter = new Counter(); |
| 94 | final CounterListener listener = new CounterListener(counter); |
| 95 | final Counter mxcounter = new Counter(); |
| 96 | final CounterListener mxlistener = new CounterListener(mxcounter); |
| 97 | final NotificationFilterSupport filter = |
| 98 | new NotificationFilterSupport(); |
| 99 | filter.enableType(MBeanServerNotification.REGISTRATION_NOTIFICATION); |
| 100 | filter.enableType(MBeanServerNotification.UNREGISTRATION_NOTIFICATION); |
| 101 | int registered = 0; |
| 102 | try { |
| 103 | final MBeanServerDelegateMBean delegate = |
| 104 | JMX.newMBeanProxy(client.getMBeanServerConnection(), |
| 105 | MBeanServerDelegate.DELEGATE_NAME, |
| 106 | MBeanServerDelegateMBean.class, |
| 107 | true); |
| 108 | |
| 109 | NotificationEmitter emitter = (NotificationEmitter)delegate; |
| 110 | emitter.addNotificationListener(listener,filter,"JMX.newMBeanProxy"); |
| 111 | } catch (Exception x) { |
| 112 | throw new RuntimeException("Failed to register listener with "+ |
| 113 | " JMX.newMBeanProxy: " + x, x); |
| 114 | } |
| 115 | |
| 116 | try { |
| 117 | final MBeanServerDelegateMBean delegate = |
| 118 | MBeanServerInvocationHandler.newProxyInstance(mbs, |
| 119 | MBeanServerDelegate.DELEGATE_NAME, |
| 120 | MBeanServerDelegateMBean.class, |
| 121 | true); |
| 122 | |
| 123 | NotificationEmitter emitter = (NotificationEmitter)delegate; |
| 124 | emitter.addNotificationListener(listener,filter, |
| 125 | "MBeanServerInvocationHandler.newProxyInstance"); |
| 126 | } catch (Exception x) { |
| 127 | throw new RuntimeException("Failed to register listener with "+ |
| 128 | " MBeanServerInvocationHandler.newProxyInstance: " + x, x); |
| 129 | } |
| 130 | |
| 131 | System.out.println("<<< Register an MBean."); |
| 132 | |
| 133 | final Simple simple = new Simple(); |
| 134 | mbs.registerMBean(simple, name); |
| 135 | registered++; |
| 136 | |
| 137 | SimpleMXBean simple0 = |
| 138 | JMX.newMXBeanProxy(client.getMBeanServerConnection(), |
| 139 | name, |
| 140 | SimpleMXBean.class, |
| 141 | true); |
| 142 | |
| 143 | SimpleMXBean simple1 = |
| 144 | JMX.newMXBeanProxy(mbs, |
| 145 | name, |
| 146 | SimpleMXBean.class, |
| 147 | false); |
| 148 | |
| 149 | final int expected = 2*registered; |
| 150 | final int reg = counter.waitfor(expected,3000); |
| 151 | if (reg != expected) |
| 152 | throw new RuntimeException("Bad notification count: " + reg + |
| 153 | ", expected " +expected); |
| 154 | System.out.println("Received expected "+reg+ |
| 155 | " notifs after registerMBean"); |
| 156 | |
| 157 | ((NotificationEmitter)simple0) |
| 158 | .addNotificationListener(mxlistener,null,name); |
| 159 | simple1.equals("Are you a Wombat?"); |
| 160 | final int mxnotifs = mxcounter.waitfor(1,3000); |
| 161 | if (mxnotifs != 1) |
| 162 | throw new RuntimeException("Bad MXBean notification count: " + |
| 163 | mxnotifs); |
| 164 | System.out.println("Received expected "+mxnotifs+ |
| 165 | " notifs from MXBean"); |
| 166 | |
| 167 | mbs.unregisterMBean(name); |
| 168 | final int unreg = counter.waitfor(expected+reg,3000); |
| 169 | if (unreg != (expected+reg)) |
| 170 | throw new RuntimeException("Bad notification count: " + unreg + |
| 171 | ", expected " +expected+reg); |
| 172 | System.out.println("Received expected "+(unreg-reg)+ |
| 173 | " notifs after unregisterMBean"); |
| 174 | System.out.println("Total notifs received: " + unreg); |
| 175 | |
| 176 | |
| 177 | } |
| 178 | |
| 179 | public static interface Simplest { |
| 180 | |
| 181 | } |
| 182 | |
| 183 | public static interface SimpleMXBean extends Simplest { |
| 184 | public String equals(String x); |
| 185 | } |
| 186 | |
| 187 | private static class Simple extends NotificationBroadcasterSupport |
| 188 | implements SimpleMXBean { |
| 189 | public static final String NOTIF_TYPE = "simple.equals"; |
| 190 | private static long seq=0; |
| 191 | private static synchronized long seq() { return ++seq; }; |
| 192 | public String equals(String x) { |
| 193 | sendNotification(new Notification(NOTIF_TYPE,this,seq(),x)); |
| 194 | return x; |
| 195 | } |
| 196 | |
| 197 | } |
| 198 | |
| 199 | |
| 200 | |
| 201 | } |