cf105cf085
6218920: API bug - impossible to delete last MBeanServerForwarder on a connector Reviewed-by: emcmanus
128 lines
4.6 KiB
Java
128 lines
4.6 KiB
Java
/*
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* Copyright 2008 Sun Microsystems, Inc. All Rights Reserved.
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* This code is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 only, as
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* published by the Free Software Foundation.
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*
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* This code is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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* version 2 for more details (a copy is included in the LICENSE file that
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* accompanied this code).
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*
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* You should have received a copy of the GNU General Public License version
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* 2 along with this work; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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* CA 95054 USA or visit www.sun.com if you need additional information or
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* have any questions.
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*/
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/*
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* @test
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* @bug 5108776
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* @summary Test that EventSubscriber.subscribe works
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* @author Eamonn McManus
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*/
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import java.lang.management.ManagementFactory;
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import javax.management.MBeanServer;
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import javax.management.Notification;
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import javax.management.NotificationBroadcasterSupport;
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import javax.management.NotificationFilter;
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import javax.management.NotificationListener;
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import javax.management.ObjectName;
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import javax.management.event.EventSubscriber;
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public class SubscribeTest {
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private static class CountListener implements NotificationListener {
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volatile int count;
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public void handleNotification(Notification n, Object h) {
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count++;
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}
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}
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private static class SwitchFilter implements NotificationFilter {
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volatile boolean enabled;
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public boolean isNotificationEnabled(Notification n) {
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return enabled;
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}
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}
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public static interface SenderMBean {}
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public static class Sender extends NotificationBroadcasterSupport
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implements SenderMBean {
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void send() {
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Notification n = new Notification("type", this, 1L);
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sendNotification(n);
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}
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}
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public static void main(String[] args) throws Exception {
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MBeanServer mbs = ManagementFactory.getPlatformMBeanServer();
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ObjectName name1 = new ObjectName("d:type=Sender,id=1");
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ObjectName name2 = new ObjectName("d:type=Sender,id=2");
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ObjectName pattern = new ObjectName("d:type=Sender,*");
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Sender sender1 = new Sender();
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Sender sender2 = new Sender();
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mbs.registerMBean(sender1, name1);
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mbs.registerMBean(sender2, name2);
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EventSubscriber sub = EventSubscriber.getEventSubscriber(mbs);
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System.out.println("Single subscribe covering both MBeans");
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CountListener listen1 = new CountListener();
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sub.subscribe(pattern, listen1, null, null);
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sender1.send();
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assertEquals("Notifs after sender1 send", 1, listen1.count);
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sender2.send();
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assertEquals("Notifs after sender2 send", 2, listen1.count);
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System.out.println("Unsubscribe");
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sub.unsubscribe(pattern, listen1);
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sender1.send();
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assertEquals("Notifs after sender1 send", 2, listen1.count);
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System.out.println("Subscribe twice to same MBean with same listener " +
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"but different filters");
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SwitchFilter filter1 = new SwitchFilter();
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sub.subscribe(name1, listen1, null, null);
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sub.subscribe(name1, listen1, filter1, null);
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listen1.count = 0;
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sender1.send();
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// switch is off, so only one notif expected
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assertEquals("Notifs after sender1 send", 1, listen1.count);
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filter1.enabled = true;
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sender1.send();
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// switch is on, so two more notifs expected
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assertEquals("Notifs after sender1 send", 3, listen1.count);
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System.out.println("Remove those subscriptions");
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sub.unsubscribe(name1, listen1);
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sender1.send();
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assertEquals("Notifs after sender1 send", 3, listen1.count);
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}
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private static void assertEquals(String what, Object expected, Object actual)
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throws Exception {
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if (!equal(expected, actual)) {
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String msg = "Expected " + expected + "; got " + actual;
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throw new Exception("TEST FAILED: " + what + ": " + msg);
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}
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}
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private static boolean equal(Object x, Object y) {
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if (x == y)
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return true;
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if (x == null)
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return false;
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return (x.equals(y));
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}
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}
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