96 lines
3.0 KiB
Java
96 lines
3.0 KiB
Java
/*
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* Copyright (c) 2003, 2011, Oracle and/or its affiliates. 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. Oracle designates this
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* particular file as subject to the "Classpath" exception as provided
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* by Oracle in the LICENSE file that accompanied this code.
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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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
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* or visit www.oracle.com if you need additional information or have any
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* questions.
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*/
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package sun.management;
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import java.lang.management.ManagementFactory;
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import java.lang.management.MemoryManagerMXBean;
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import java.lang.management.MemoryPoolMXBean;
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import javax.management.MBeanNotificationInfo;
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import javax.management.ObjectName;
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/**
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* Implementation class for a memory manager.
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* Standard and committed hotspot-specific metrics if any.
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*
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* ManagementFactory.getMemoryManagerMXBeans() returns a list
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* of instances of this class.
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*/
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class MemoryManagerImpl extends NotificationEmitterSupport
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implements MemoryManagerMXBean {
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private final String name;
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private final boolean isValid;
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private MemoryPoolMXBean[] pools;
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MemoryManagerImpl(String name) {
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this.name = name;
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this.isValid = true;
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this.pools = null;
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}
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public String getName() {
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return name;
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}
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public boolean isValid() {
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return isValid;
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}
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public String[] getMemoryPoolNames() {
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MemoryPoolMXBean[] ps = getMemoryPools();
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String[] names = new String[ps.length];
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for (int i = 0; i < ps.length; i++) {
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names[i] = ps[i].getName();
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}
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return names;
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}
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synchronized MemoryPoolMXBean[] getMemoryPools() {
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if (pools == null) {
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pools = getMemoryPools0();
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}
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return pools;
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}
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private native MemoryPoolMXBean[] getMemoryPools0();
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private MBeanNotificationInfo[] notifInfo = null;
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public MBeanNotificationInfo[] getNotificationInfo() {
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synchronized (this) {
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if(notifInfo == null) {
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notifInfo = new MBeanNotificationInfo[0];
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}
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}
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return notifInfo;
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}
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public ObjectName getObjectName() {
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return Util.newObjectName(ManagementFactory.MEMORY_MANAGER_MXBEAN_DOMAIN_TYPE, getName());
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}
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}
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