J. Duke | 319a3b9 | 2007-12-01 00:00:00 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2005-2006 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. Sun designates this |
| 8 | * particular file as subject to the "Classpath" exception as provided |
| 9 | * by Sun in the LICENSE file that accompanied this code. |
| 10 | * |
| 11 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 12 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 13 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 14 | * version 2 for more details (a copy is included in the LICENSE file that |
| 15 | * accompanied this code). |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License version |
| 18 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 19 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 20 | * |
| 21 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| 22 | * CA 95054 USA or visit www.sun.com if you need additional information or |
| 23 | * have any questions. |
| 24 | */ |
| 25 | |
| 26 | package com.sun.jmx.mbeanserver; |
| 27 | |
| 28 | import static com.sun.jmx.mbeanserver.Util.*; |
| 29 | |
| 30 | import java.lang.reflect.Method; |
| 31 | |
| 32 | import javax.management.MBeanInfo; |
| 33 | import javax.management.MBeanServer; |
| 34 | import javax.management.NotCompliantMBeanException; |
| 35 | import javax.management.ObjectName; |
| 36 | |
| 37 | /** |
| 38 | * Base class for Standard MBeans. |
| 39 | * |
| 40 | * @since 1.6 |
| 41 | */ |
| 42 | public class StandardMBeanSupport extends MBeanSupport<Method> { |
| 43 | |
| 44 | /** |
| 45 | <p>Construct a Standard MBean that wraps the given resource using the |
| 46 | given Standard MBean interface.</p> |
| 47 | |
| 48 | @param resource the underlying resource for the new MBean. |
| 49 | |
| 50 | @param mbeanInterface the interface to be used to determine |
| 51 | the MBean's management interface. |
| 52 | |
| 53 | @param <T> a type parameter that allows the compiler to check |
| 54 | that {@code resource} implements {@code mbeanInterface}, |
| 55 | provided that {@code mbeanInterface} is a class constant like |
| 56 | {@code SomeMBean.class}. |
| 57 | |
| 58 | @throws IllegalArgumentException if {@code resource} is null or |
| 59 | if it does not implement the class {@code mbeanInterface} or if |
| 60 | that class is not a valid Standard MBean interface. |
| 61 | */ |
| 62 | public <T> StandardMBeanSupport(T resource, Class<T> mbeanInterface) |
| 63 | throws NotCompliantMBeanException { |
| 64 | super(resource, mbeanInterface); |
| 65 | } |
| 66 | |
| 67 | @Override |
| 68 | MBeanIntrospector<Method> getMBeanIntrospector() { |
| 69 | return StandardMBeanIntrospector.getInstance(); |
| 70 | } |
| 71 | |
| 72 | @Override |
| 73 | Object getCookie() { |
| 74 | return null; |
| 75 | } |
| 76 | |
| 77 | @Override |
| 78 | public void register(MBeanServer mbs, ObjectName name) {} |
| 79 | |
| 80 | @Override |
| 81 | public void unregister() {} |
| 82 | |
| 83 | /* Standard MBeans that are NotificationBroadcasters can return a different |
| 84 | * MBeanNotificationInfo[] every time getMBeanInfo() is called, so we have |
| 85 | * to reconstruct this MBeanInfo if necessary. |
| 86 | */ |
| 87 | @Override |
| 88 | public MBeanInfo getMBeanInfo() { |
| 89 | MBeanInfo mbi = super.getMBeanInfo(); |
| 90 | Class<?> resourceClass = getResource().getClass(); |
| 91 | if (StandardMBeanIntrospector.isDefinitelyImmutableInfo(resourceClass)) |
| 92 | return mbi; |
| 93 | return new MBeanInfo(mbi.getClassName(), mbi.getDescription(), |
| 94 | mbi.getAttributes(), mbi.getConstructors(), |
| 95 | mbi.getOperations(), |
| 96 | MBeanIntrospector.findNotifications(getResource()), |
| 97 | mbi.getDescriptor()); |
| 98 | } |
| 99 | } |