Examples with Notification javax.management.Notification used on opensource projects

Example 86 with Notification

use of javax.management.Notification in project jdk8u_jdk by JetBrains.

the class DirectoryScanner method notifyMatch.

// Notifies of a matching file.
private boolean notifyMatch(File file) {
    try {
        final Notification n = new Notification(FILE_MATCHES_NOTIFICATION, this, getNextSeqNumber(), file.getAbsolutePath());
        // This method *is not* called from any synchronized block, so
        // we can happily call broadcaster.sendNotification() here.
        // Note that verifying whether a method is called from within
        // a synchronized block demends a thoroughful code reading,
        // examining each of the 'parent' methods in turn.
        //
        broadcaster.sendNotification(n);
        return true;
    } catch (Exception x) {
        LOG.fine("Failed to notify: " + file.getAbsolutePath());
    }
    return false;
}

Example 87 with Notification

use of javax.management.Notification in project jdk8u_jdk by JetBrains.

the class ResultLogManager method checkLogFile.

/**
     * Check whether a new log file should be created.
     * If a new file needs to be created, creates it, renaming
     * previously existing file by appending '~' to its name.
     * Also reset the log count and file capacity.
     * Sends a notification indicating that the log file was changed.
     * Returns the new log stream;
     * Creation of a new file can be forced by passing force=true.
     **/
private OutputStream checkLogFile(String basename, long maxRecords, boolean force) throws IOException {
    final OutputStream newStream;
    synchronized (this) {
        if ((force == false) && (logCount < maxRecords))
            return logStream;
        final OutputStream oldStream = logStream;
        //
        if (oldStream != null) {
            oldStream.flush();
            oldStream.close();
        }
        final File newFile = (basename == null) ? null : createNewLogFile(basename);
        newStream = (newFile == null) ? null : new FileOutputStream(newFile, true);
        logStream = newStream;
        logFile = newFile;
        fileCapacity = maxRecords;
        logCount = 0;
    }
    sendNotification(new Notification(LOG_FILE_CHANGED, objectName, getNextSeqNumber(), basename));
    return newStream;
}

Example 88 with Notification

use of javax.management.Notification in project jdk8u_jdk by JetBrains.

the class Client method run.

public static void run(String url) throws Exception {
    final int notifEmittedCnt = 10;
    final CountDownLatch counter = new CountDownLatch(notifEmittedCnt);
    final Set<Long> seqSet = Collections.synchronizedSet(new HashSet<Long>());
    final AtomicBoolean duplNotification = new AtomicBoolean();
    JMXServiceURL serverUrl = new JMXServiceURL(url);
    ObjectName name = new ObjectName("test", "foo", "bar");
    JMXConnector jmxConnector = JMXConnectorFactory.connect(serverUrl);
    System.out.println("client connected");
    jmxConnector.addConnectionNotificationListener(new NotificationListener() {

        @Override
        public void handleNotification(Notification notification, Object handback) {
            System.out.println("connection notification: " + notification);
            if (!seqSet.add(notification.getSequenceNumber())) {
                duplNotification.set(true);
            }
            if (notification.getType().equals(JMXConnectionNotification.NOTIFS_LOST)) {
                long lostNotifs = ((Long) ((JMXConnectionNotification) notification).getUserData()).longValue();
                for (int i = 0; i < lostNotifs; i++) {
                    counter.countDown();
                }
            }
        }
    }, null, null);
    MBeanServerConnection jmxServer = jmxConnector.getMBeanServerConnection();
    jmxServer.addNotificationListener(name, new NotificationListener() {

        @Override
        public void handleNotification(Notification notification, Object handback) {
            System.out.println("client got: " + notification);
            if (!seqSet.add(notification.getSequenceNumber())) {
                duplNotification.set(true);
            }
            counter.countDown();
        }
    }, null, null);
    System.out.println("client invoking foo (" + notifEmittedCnt + " times)");
    for (int i = 0; i < notifEmittedCnt; i++) {
        System.out.print(".");
        jmxServer.invoke(name, "foo", new Object[] {}, new String[] {});
    }
    System.out.println();
    try {
        System.out.println("waiting for " + notifEmittedCnt + " notifications to arrive");
        if (!counter.await(30, TimeUnit.SECONDS)) {
            throw new InterruptedException();
        }
        if (duplNotification.get()) {
            System.out.println("ERROR: received duplicated notifications");
            throw new Error("received duplicated notifications");
        }
        System.out.println("\nshutting down client");
    } catch (InterruptedException e) {
        System.out.println("ERROR: notification processing thread interrupted");
        throw new Error("notification thread interrupted unexpectedly");
    }
}

Example 89 with Notification

use of javax.management.Notification in project jdk8u_jdk by JetBrains.

the class RelationNotificationSeqNoTest method main.

public static void main(String[] args) throws Exception {
    MBeanServer mbs = MBeanServerFactory.newMBeanServer();
    ObjectName relSvcName = new ObjectName("a:type=relationService");
    RelationServiceMBean relSvc = JMX.newMBeanProxy(mbs, relSvcName, RelationServiceMBean.class);
    mbs.createMBean("javax.management.relation.RelationService", relSvcName, new Object[] { Boolean.TRUE }, new String[] { "boolean" });
    final BlockingQueue<Notification> q = new ArrayBlockingQueue<Notification>(100);
    NotificationListener qListener = new NotificationListener() {

        public void handleNotification(Notification notification, Object handback) {
            q.add(notification);
        }
    };
    mbs.addNotificationListener(relSvcName, qListener, null, null);
    RoleInfo leftInfo = new RoleInfo("left", "javax.management.timer.TimerMBean");
    RoleInfo rightInfo = new RoleInfo("right", "javax.management.timer.Timer");
    relSvc.createRelationType("typeName", new RoleInfo[] { leftInfo, rightInfo });
    ObjectName timer1 = new ObjectName("a:type=timer,number=1");
    ObjectName timer2 = new ObjectName("a:type=timer,number=2");
    mbs.createMBean("javax.management.timer.Timer", timer1);
    mbs.createMBean("javax.management.timer.Timer", timer2);
    Role leftRole = new Role("left", Arrays.asList(new ObjectName[] { timer1 }));
    Role rightRole = new Role("right", Arrays.asList(new ObjectName[] { timer2 }));
    RoleList roles = new RoleList(Arrays.asList(new Role[] { leftRole, rightRole }));
    final int NREPEAT = 10;
    for (int i = 0; i < NREPEAT; i++) {
        relSvc.createRelation("relationName", "typeName", roles);
        relSvc.removeRelation("relationName");
    }
    Notification firstNotif = q.remove();
    long seqNo = firstNotif.getSequenceNumber();
    for (int i = 0; i < NREPEAT * 2 - 1; i++) {
        Notification n = q.remove();
        long nSeqNo = n.getSequenceNumber();
        if (nSeqNo != seqNo + 1) {
            throw new Exception("TEST FAILED: expected seqNo " + (seqNo + 1) + "; got " + nSeqNo);
        }
        seqNo++;
    }
    System.out.println("TEST PASSED: got " + (NREPEAT * 2) + " notifications " + "with contiguous sequence numbers");
}

Example 90 with Notification

use of javax.management.Notification in project jdk8u_jdk by JetBrains.

the class RMIPasswdAuthTest method main.

public static void main(String[] args) {
    try {
        // Set the default password file
        //
        final String passwordFile = System.getProperty("test.src") + File.separator + "jmxremote.password";
        System.out.println("Password file = " + passwordFile);
        // Create an RMI registry
        //
        System.out.println("Start RMI registry...");
        Registry reg = null;
        int port = 5800;
        while (port++ < 6000) {
            try {
                reg = LocateRegistry.createRegistry(port);
                System.out.println("RMI registry running on port " + port);
                break;
            } catch (RemoteException e) {
                // Failed to create RMI registry...
                System.out.println("Failed to create RMI registry " + "on port " + port);
            }
        }
        if (reg == null) {
            System.exit(1);
        }
        // Instantiate the MBean server
        //
        System.out.println("Create the MBean server");
        MBeanServer mbs = MBeanServerFactory.createMBeanServer();
        // Register the ClassPathClassLoaderMBean
        //
        System.out.println("Create ClassPathClassLoader MBean");
        ObjectName cpcl = new ObjectName("ClassLoader:name=ClassPathClassLoader");
        mbs.createMBean("javax.management.loading.MLet", cpcl);
        // Register the SimpleStandardMBean
        //
        System.out.println("Create SimpleStandard MBean");
        mbs.createMBean("SimpleStandard", new ObjectName("MBeans:name=SimpleStandard"));
        // Create Properties containing the location of the password file
        //
        Properties props = new Properties();
        props.setProperty("jmx.remote.x.password.file", passwordFile);
        // Initialize environment map to be passed to the connector server
        //
        System.out.println("Initialize environment map");
        HashMap env = new HashMap();
        env.put("jmx.remote.authenticator", new JMXPluggableAuthenticator(props));
        // Create an RMI connector server
        //
        System.out.println("Create an RMI connector server");
        JMXServiceURL url = new JMXServiceURL("rmi", null, 0, "/jndi/rmi://:" + port + "/server" + port);
        JMXConnectorServer rcs = JMXConnectorServerFactory.newJMXConnectorServer(url, env, mbs);
        rcs.start();
        // Create an RMI connector client
        //
        System.out.println("Create an RMI connector client");
        HashMap cli_env = new HashMap();
        // These credentials must match those in the supplied password file
        //
        String[] credentials = new String[] { "monitorRole", "QED" };
        cli_env.put("jmx.remote.credentials", credentials);
        JMXConnector jmxc = JMXConnectorFactory.connect(url, cli_env);
        MBeanServerConnection mbsc = jmxc.getMBeanServerConnection();
        // Get domains from MBeanServer
        //
        System.out.println("Domains:");
        String[] domains = mbsc.getDomains();
        for (int i = 0; i < domains.length; i++) {
            System.out.println("\tDomain[" + i + "] = " + domains[i]);
        }
        // Get MBean count
        //
        System.out.println("MBean count = " + mbsc.getMBeanCount());
        // Get State attribute
        //
        String oldState = (String) mbsc.getAttribute(new ObjectName("MBeans:name=SimpleStandard"), "State");
        System.out.println("Old State = \"" + oldState + "\"");
        // Set State attribute
        //
        System.out.println("Set State to \"changed state\"");
        mbsc.setAttribute(new ObjectName("MBeans:name=SimpleStandard"), new Attribute("State", "changed state"));
        // Get State attribute
        //
        String newState = (String) mbsc.getAttribute(new ObjectName("MBeans:name=SimpleStandard"), "State");
        System.out.println("New State = \"" + newState + "\"");
        if (!newState.equals("changed state")) {
            System.out.println("Invalid State = \"" + newState + "\"");
            System.exit(1);
        }
        // Add notification listener on SimpleStandard MBean
        //
        System.out.println("Add notification listener...");
        mbsc.addNotificationListener(new ObjectName("MBeans:name=SimpleStandard"), new NotificationListener() {

            public void handleNotification(Notification notification, Object handback) {
                System.out.println("Received notification: " + notification);
            }
        }, null, null);
        // Unregister SimpleStandard MBean
        //
        System.out.println("Unregister SimpleStandard MBean...");
        mbsc.unregisterMBean(new ObjectName("MBeans:name=SimpleStandard"));
        // Close MBeanServer connection
        //
        jmxc.close();
        System.out.println("Bye! Bye!");
    } catch (Exception e) {
        System.out.println("Unexpected exception caught = " + e);
        e.printStackTrace();
        System.exit(1);
    }
}