1 /*

     2  * Copyright 2008 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  *

    26  * @test NamespaceNotificationsTest.java 1.12

    27  * @summary General Namespace & Notifications test.

    28  * @author Daniel Fuchs

    29  * @run clean NamespaceNotificationsTest

    30  *            Wombat WombatMBean JMXRemoteTargetNamespace

    31  *            NamespaceController NamespaceControllerMBean

    32  * @compile -XDignore.symbol.file=true  NamespaceNotificationsTest.java

    33  *            Wombat.java WombatMBean.java JMXRemoteTargetNamespace.java

    34  *            NamespaceController.java NamespaceControllerMBean.java

    35  * @run main NamespaceNotificationsTest

    36  */

    37 import com.sun.jmx.remote.util.EventClientConnection;

    38 import java.lang.management.ManagementFactory;

    39 import java.util.Arrays;

    40 import java.util.HashMap;

    41 import java.util.Map;

    42 import java.util.concurrent.ArrayBlockingQueue;

    43 import java.util.concurrent.BlockingQueue;

    44 import java.util.concurrent.TimeUnit;

    45 import java.util.logging.Logger;

    46 import javax.management.JMX;

    47 import javax.management.MBeanServer;

    48 import javax.management.MBeanServerConnection;

    49 import javax.management.MBeanServerDelegate;

    50 import javax.management.MBeanServerFactory;

    51 import javax.management.MBeanServerNotification;

    52 import javax.management.MalformedObjectNameException;

    53 import javax.management.Notification;

    54 import javax.management.NotificationEmitter;

    55 import javax.management.NotificationListener;

    56 import javax.management.ObjectInstance;

    57 import javax.management.ObjectName;

    58 import javax.management.loading.MLet;

    59 import javax.management.namespace.JMXNamespace;

    60 import javax.management.namespace.JMXNamespaces;

    61 import javax.management.remote.JMXAddressable;

    62 import javax.management.remote.JMXConnector;

    63 import javax.management.remote.JMXConnectorFactory;

    64 import javax.management.remote.JMXConnectorServer;

    65 import javax.management.remote.JMXConnectorServerFactory;

    66 import javax.management.remote.JMXServiceURL;

    67 

    68 /**

    69  *

    70  * @author Sun Microsystems, Inc.

    71  */

    72 public class NamespaceNotificationsTest {

    73 

    74     /**

    75      * A logger for this class.

    76      **/

    77     private static final Logger LOG =

    78             Logger.getLogger(NamespaceNotificationsTest.class.getName());

    79 

    80     /** Creates a new instance of NamespaceNotificationsTest */

    81     public NamespaceNotificationsTest() {

    82     }

    83 

    84 

    85     public static JMXServiceURL export(MBeanServer server)

    86     throws Exception {

    87         final JMXServiceURL in = new JMXServiceURL("rmi",null,0);

    88         final JMXConnectorServer cs =

    89                 JMXConnectorServerFactory.newJMXConnectorServer(in,null,null);

    90         final ObjectName csname = ObjectName.

    91                 getInstance(cs.getClass().getPackage().getName()+

    92                 ":type="+cs.getClass().getSimpleName());

    93         server.registerMBean(cs,csname);

    94         cs.start();

    95         return cs.getAddress();

    96     }

    97 

    98     public static class Counter {

    99         int count;

   100         public synchronized int count() {

   101             count++;

   102             notifyAll();

   103             return count;

   104         }

   105         public synchronized int peek() {

   106             return count;

   107         }

   108         public synchronized int waitfor(int max, long timeout)

   109         throws InterruptedException {

   110             final long start = System.currentTimeMillis();

   111             while (count < max && timeout > 0) {

   112                 final long rest = timeout -

   113                         (System.currentTimeMillis() - start);

   114                 if (rest <= 0) break;

   115                 wait(rest);

   116             }

   117             return count;

   118         }

   119     }

   120 

   121     public static class CounterListener

   122             implements NotificationListener {

   123         final private Counter counter;

   124         public CounterListener(Counter counter) {

   125             this.counter = counter;

   126         }

   127         public void handleNotification(Notification notification,

   128                 Object handback) {

   129             System.out.println("Received notif from " + handback +

   130                     ":\n\t" + notification);

   131             if (!notification.getSource().equals(handback)) {

   132                 System.err.println("OhOh... Unexpected source: \n\t"+

   133                         notification.getSource()+"\n\twas expecting:\n\t"+

   134                         handback);

   135             }

   136             counter.count();

   137         }

   138     }

   139 

   140     public static void simpleTest(String[] args) {

   141         try {

   142             final MBeanServer server1 =

   143                     ManagementFactory.getPlatformMBeanServer();

   144             final JMXServiceURL url1 = export(server1);

   145 

   146             final MBeanServer server2 =

   147                     MBeanServerFactory.createMBeanServer("server2");

   148             final JMXServiceURL url2 = export(server2);

   149 

   150             final MBeanServer server3 =

   151                     MBeanServerFactory.createMBeanServer("server3");

   152             final JMXServiceURL url3 = export(server3);

   153 

   154             final ObjectInstance ncinst =

   155                     NamespaceController.createInstance(server1);

   156 

   157             final NamespaceControllerMBean nc =

   158                     JMX.newMBeanProxy(server1,ncinst.getObjectName(),

   159                     NamespaceControllerMBean.class);

   160 

   161             final Map<String,Object> options = new HashMap<String,Object>();

   162             options.put(JMXRemoteTargetNamespace.CREATE_EVENT_CLIENT,"true");

   163 

   164             final String mount1 =

   165                     nc.mount(url1,"server1",options);

   166             final String mount2 = nc.mount(url2,"server1//server2",

   167                     options);

   168             final String mount3 = nc.mount(url3,

   169                     "server1//server2//server3",

   170                     options);

   171             final String mount13 = nc.mount(

   172                     url1,

   173                     "server3",

   174                     "server2//server3",

   175                     options);

   176             final String mount21 = nc.mount(url1,"server2//server1",

   177                     options);

   178             final String mount31 = nc.mount(

   179                     url1,

   180                     "server3//server1",

   181                     "server1",

   182                     options);

   183             final String mount32 = nc.mount(

   184                     url1,

   185                     "server3//server2",

   186                     "server2",

   187                     options);

   188 

   189 

   190             final ObjectName deep =

   191                     new ObjectName("server1//server2//server3//bush:type=Wombat,name=kanga");

   192             server1.createMBean(Wombat.class.getName(),deep);

   193 

   194             System.err.println("There's a wombat in the bush!");

   195 

   196             final Counter counter = new Counter();

   197 

   198             final NotificationListener listener =

   199                     new CounterListener(counter);

   200 

   201             final JMXConnector jc = JMXConnectorFactory.connect(url1);

   202             final MBeanServerConnection aconn =

   203                     EventClientConnection.getEventConnectionFor(

   204                         jc.getMBeanServerConnection(),null);

   205             aconn.addNotificationListener(deep,listener,null,deep);

   206 

   207 

   208             final JMXServiceURL urlx = new JMXServiceURL(url1.toString());

   209             System.out.println("conn: "+urlx);

   210             final JMXConnector jc2 = JMXNamespaces.narrowToNamespace(

   211                     JMXConnectorFactory.connect(urlx),"server1//server1");

   212             final JMXConnector jc3 = JMXNamespaces.narrowToNamespace(jc2,"server3");

   213             jc3.connect();

   214             System.out.println("JC#3: " +

   215                     ((jc3 instanceof JMXAddressable)?

   216                         ((JMXAddressable)jc3).getAddress():

   217                         jc3.toString()));

   218             final MBeanServerConnection bconn =

   219                     jc3.getMBeanServerConnection();

   220             final ObjectName shallow =

   221                     new ObjectName("bush:"+

   222                     deep.getKeyPropertyListString());

   223             final WombatMBean proxy =

   224                     JMX.newMBeanProxy(EventClientConnection.getEventConnectionFor(

   225                         bconn,null),shallow,WombatMBean.class,true);

   226 

   227             ((NotificationEmitter)proxy).

   228                     addNotificationListener(listener,null,shallow);

   229             proxy.setCaption("I am a new Wombat!");

   230             System.err.println("New caption: "+proxy.getCaption());

   231             final int rcvcount = counter.waitfor(2,3000);

   232             if (rcvcount != 2)

   233                 throw new RuntimeException("simpleTest failed: "+

   234                         "received count is " +rcvcount);

   235 

   236             System.err.println("simpleTest passed: got "+rcvcount+

   237                     " notifs");

   238 

   239         } catch (RuntimeException x) {

   240             throw x;

   241         } catch (Exception x) {

   242             throw new RuntimeException("simpleTest failed: " + x,x);

   243         }

   244     }

   245 

   246     public static class LocalNamespace extends

   247             JMXNamespace {

   248         LocalNamespace() {

   249             super(MBeanServerFactory.newMBeanServer());

   250         }

   251 

   252     }

   253 

   254     public static class ContextObject<K,V> {

   255         public final K name;

   256         public final V object;

   257         public ContextObject(K name, V object) {

   258             this.name = name;

   259             this.object = object;

   260         }

   261         private Object[] data() {

   262             return new Object[] {name,object};

   263         }

   264 

   265         @Override

   266         public boolean equals(Object x) {

   267             if (x instanceof ContextObject)

   268                 return Arrays.deepEquals(data(),((ContextObject<?,?>)x).data());

   269             return false;

   270         }

   271         @Override

   272         public int hashCode() {

   273             return Arrays.deepHashCode(data());

   274         }

   275     }

   276 

   277     private static <K,V> ContextObject<K,V> context(K k, V v) {

   278         return new ContextObject<K,V>(k,v);

   279     }

   280 

   281     private static ObjectName name(String name) {

   282         try {

   283             return new ObjectName(name);

   284         } catch(MalformedObjectNameException x) {

   285             throw new IllegalArgumentException(name,x);

   286         }

   287     }

   288 

   289     public static void simpleTest2() {

   290         try {

   291             System.out.println("\nsimpleTest2: STARTING\n");

   292             final LocalNamespace foo = new LocalNamespace();

   293             final LocalNamespace joe = new LocalNamespace();

   294             final LocalNamespace bar = new LocalNamespace();

   295             final MBeanServer server = MBeanServerFactory.newMBeanServer();

   296 

   297             server.registerMBean(foo,JMXNamespaces.getNamespaceObjectName("foo"));

   298             server.registerMBean(joe,JMXNamespaces.getNamespaceObjectName("foo//joe"));

   299             server.registerMBean(bar,JMXNamespaces.getNamespaceObjectName("foo//bar"));

   300             final BlockingQueue<ContextObject<String,MBeanServerNotification>> queue =

   301                     new ArrayBlockingQueue<ContextObject<String,MBeanServerNotification>>(20);

   302 

   303             final NotificationListener listener = new NotificationListener() {

   304                 public void handleNotification(Notification n, Object handback) {

   305                     if (!(n instanceof MBeanServerNotification)) {

   306                         System.err.println("Error: expected MBeanServerNotification");

   307                         return;

   308                     }

   309                     final MBeanServerNotification mbsn =

   310                             (MBeanServerNotification) n;

   311 

   312                     // We will pass the namespace name in the handback.

   313                     //

   314                     final String namespace = (String) handback;

   315                     System.out.println("Received " + mbsn.getType() +

   316                             " for MBean " + mbsn.getMBeanName() +

   317                             " from name space " + namespace);

   318                     try {

   319                         queue.offer(context(namespace,mbsn),500,TimeUnit.MILLISECONDS);

   320                     } catch (Exception x) {

   321                         System.err.println("Failed to enqueue received notif: "+mbsn);

   322                         x.printStackTrace();

   323                     }

   324                 }

   325             };

   326 

   327             server.addNotificationListener(JMXNamespaces.insertPath("foo//joe",

   328                     MBeanServerDelegate.DELEGATE_NAME),listener,null,"foo//joe");

   329             server.addNotificationListener(JMXNamespaces.insertPath("foo//bar",

   330                     MBeanServerDelegate.DELEGATE_NAME),listener,null,"foo//bar");

   331             server.createMBean(MLet.class.getName(),

   332                     name("foo//joe//domain:type=MLet"));

   333             checkQueue(queue,"foo//joe",

   334                     MBeanServerNotification.REGISTRATION_NOTIFICATION);

   335             server.createMBean(MLet.class.getName(),

   336                     name("foo//bar//domain:type=MLet"));

   337             checkQueue(queue,"foo//bar",

   338                     MBeanServerNotification.REGISTRATION_NOTIFICATION);

   339             server.unregisterMBean(

   340                     name("foo//joe//domain:type=MLet"));

   341             checkQueue(queue,"foo//joe",

   342                     MBeanServerNotification.UNREGISTRATION_NOTIFICATION);

   343             server.unregisterMBean(

   344                     name("foo//bar//domain:type=MLet"));

   345             checkQueue(queue,"foo//bar",

   346                     MBeanServerNotification.UNREGISTRATION_NOTIFICATION);

   347         } catch (RuntimeException x) {

   348             System.err.println("FAILED: "+x);

   349             throw x;

   350         } catch(Exception x) {

   351             System.err.println("FAILED: "+x);

   352             throw new RuntimeException("Unexpected exception: "+x,x);

   353         }

   354     }

   355 

   356 

   357     private static void checkQueue(

   358             BlockingQueue<ContextObject<String,MBeanServerNotification>> q,

   359                               String path, String type) {

   360         try {

   361           final ContextObject<String,MBeanServerNotification> ctxt =

   362                     q.poll(500,TimeUnit.MILLISECONDS);

   363           if (ctxt == null)

   364             throw new RuntimeException("Timeout expired: expected notif from "+

   365                     path +", type="+type);

   366           if (!ctxt.name.equals(path))

   367             throw new RuntimeException("expected notif from "+

   368                     path +", got "+ctxt.name);

   369           if (!ctxt.object.getType().equals(type))

   370             throw new RuntimeException(ctxt.name+": expected type="+

   371                     type +", got "+ctxt.object.getType());

   372           if (!ctxt.object.getType().equals(type))

   373             throw new RuntimeException(ctxt.name+": expected type="+

   374                     type +", got "+ctxt.object.getType());

   375           if (!ctxt.object.getMBeanName().equals(name("domain:type=MLet")))

   376             throw new RuntimeException(ctxt.name+": expected MBean=domain:type=MLet"+

   377                     ", got "+ctxt.object.getMBeanName());

   378         } catch(InterruptedException x) {

   379             throw new RuntimeException("unexpected interruption: "+x,x);

   380         }

   381     }

   382 

   383     public static void main(String[] args) {

   384         simpleTest(args);

   385         simpleTest2();

   386     }

   387 

   388 }