| /* |
| * Copyright 2003-2005 Sun Microsystems, Inc. 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. Sun designates this |
| * particular file as subject to the "Classpath" exception as provided |
| * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, |
| * CA 95054 USA or visit www.sun.com if you need additional information or |
| * have any questions. |
| */ |
| |
| package sun.management; |
| |
| import java.lang.management.MemoryManagerMXBean; |
| import java.lang.management.MemoryPoolMXBean; |
| |
| /** |
| * Implementation class for a memory manager. |
| * Standard and committed hotspot-specific metrics if any. |
| * |
| * ManagementFactory.getMemoryManagerMXBeans() returns a list |
| * of instances of this class. |
| */ |
| class MemoryManagerImpl implements MemoryManagerMXBean { |
| |
| private final String name; |
| private final boolean isValid; |
| private MemoryPoolMXBean[] pools; |
| |
| MemoryManagerImpl(String name) { |
| this.name = name; |
| this.isValid = true; |
| this.pools = null; |
| } |
| |
| public String getName() { |
| return name; |
| } |
| |
| public boolean isValid() { |
| return isValid; |
| } |
| |
| public String[] getMemoryPoolNames() { |
| MemoryPoolMXBean[] ps = getMemoryPools(); |
| |
| String[] names = new String[ps.length]; |
| for (int i = 0; i < ps.length; i++) { |
| names[i] = ps[i].getName(); |
| } |
| return names; |
| } |
| |
| synchronized MemoryPoolMXBean[] getMemoryPools() { |
| if (pools == null) { |
| pools = getMemoryPools0(); |
| } |
| return pools; |
| } |
| private native MemoryPoolMXBean[] getMemoryPools0(); |
| |
| } |