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8044473: Allow for extended set of platform MXBeans

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Add ExtendedPlatformComponent

Reviewed-by: dfuchs
This commit is contained in:
Brent Christian 2014-09-05 09:45:13 -07:00
parent 55312612fb
commit e99423e062
2 changed files with 89 additions and 3 deletions
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38
jdk/src/java.management/share/classes/java/lang/management/ManagementFactory.java
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@ -52,6 +52,7 @@ import java.security.PrivilegedActionException;
import java.security.PrivilegedExceptionAction;
import javax.management.JMX;
import sun.management.ManagementFactoryHelper;
import sun.management.ExtendedPlatformComponent;
/**
* The {@code ManagementFactory} class is a factory class for getting
@ -489,6 +490,12 @@ public class ManagementFactory {
for (Map.Entry<ObjectName, DynamicMBean> e : dynmbeans.entrySet()) {
addDynamicMBean(platformMBeanServer, e.getValue(), e.getKey());
}
for (final PlatformManagedObject o :
ExtendedPlatformComponent.getMXBeans()) {
if (!platformMBeanServer.isRegistered(o.getObjectName())) {
addMXBean(platformMBeanServer, o);
}
}
}
return platformMBeanServer;
}
@ -655,9 +662,14 @@ public class ManagementFactory {
public static <T extends PlatformManagedObject>
T getPlatformMXBean(Class<T> mxbeanInterface) {
PlatformComponent pc = PlatformComponent.getPlatformComponent(mxbeanInterface);
if (pc == null)
if (pc == null) {
T mbean = ExtendedPlatformComponent.getMXBean(mxbeanInterface);
if (mbean != null) {
return mbean;
}
throw new IllegalArgumentException(mxbeanInterface.getName() +
" is not a platform management interface");
}
if (!pc.isSingleton())
throw new IllegalArgumentException(mxbeanInterface.getName() +
" can have zero or more than one instances");
@ -690,9 +702,14 @@ public class ManagementFactory {
public static <T extends PlatformManagedObject> List<T>
getPlatformMXBeans(Class<T> mxbeanInterface) {
PlatformComponent pc = PlatformComponent.getPlatformComponent(mxbeanInterface);
if (pc == null)
if (pc == null) {
T mbean = ExtendedPlatformComponent.getMXBean(mxbeanInterface);
if (mbean != null) {
return Collections.singletonList(mbean);
}
throw new IllegalArgumentException(mxbeanInterface.getName() +
" is not a platform management interface");
}
return Collections.unmodifiableList(pc.getMXBeans(mxbeanInterface));
}
@ -737,9 +754,17 @@ public class ManagementFactory {
throws java.io.IOException
{
PlatformComponent pc = PlatformComponent.getPlatformComponent(mxbeanInterface);
if (pc == null)
if (pc == null) {
T mbean = ExtendedPlatformComponent.getMXBean(mxbeanInterface);
if (mbean != null) {
ObjectName on = mbean.getObjectName();
return ManagementFactory.newPlatformMXBeanProxy(connection,
on.getCanonicalName(),
mxbeanInterface);
}
throw new IllegalArgumentException(mxbeanInterface.getName() +
" is not a platform management interface");
}
if (!pc.isSingleton())
throw new IllegalArgumentException(mxbeanInterface.getName() +
" can have zero or more than one instances");
@ -781,6 +806,13 @@ public class ManagementFactory {
{
PlatformComponent pc = PlatformComponent.getPlatformComponent(mxbeanInterface);
if (pc == null) {
T mbean = ExtendedPlatformComponent.getMXBean(mxbeanInterface);
if (mbean != null) {
ObjectName on = mbean.getObjectName();
T proxy = ManagementFactory.newPlatformMXBeanProxy(connection,
on.getCanonicalName(), mxbeanInterface);
return Collections.singletonList(proxy);
}
throw new IllegalArgumentException(mxbeanInterface.getName() +
" is not a platform management interface");
}

54
jdk/src/java.management/share/classes/sun/management/ExtendedPlatformComponent.java Normal file
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@ -0,0 +1,54 @@
/*
* Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.management;
import java.util.Collections;
import java.util.List;
import java.lang.management.PlatformManagedObject;
/**
* Class to allow for an extended set of platform MXBeans
*/
public final class ExtendedPlatformComponent {
private ExtendedPlatformComponent() {} // Don't create any instances
/**
* Get the extended set of platform MXBeans that should be registered in the
* platform MBeanServer, or an empty list if there are no such MXBeans.
*/
public static List<? extends PlatformManagedObject> getMXBeans() {
return Collections.emptyList();
}
/**
* Returns the extended platform MXBean implementing the given
* mxbeanInterface, or null if there is no such MXBean.
*/
public static <T extends PlatformManagedObject>
T getMXBean(Class<T> mxbeanInterface) {
return null;
}
}