author | sjiang |
Fri, 17 Apr 2015 09:40:02 +0200 | |
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parent 28775 | d786aae24263 |
child 32834 | e1dca5fe4de3 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2015, 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.*; |
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import javax.management.InstanceAlreadyExistsException; |
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import javax.management.InstanceNotFoundException; |
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import javax.management.MBeanServer; |
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import javax.management.MBeanRegistrationException; |
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import javax.management.NotCompliantMBeanException; |
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import javax.management.ObjectName; |
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import javax.management.RuntimeOperationsException; |
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import java.security.AccessController; |
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import java.security.PrivilegedActionException; |
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import java.security.PrivilegedExceptionAction; |
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import sun.util.logging.LoggingSupport; |
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import java.util.ArrayList; |
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import java.util.List; |
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/** |
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* ManagementFactoryHelper provides static factory methods to create |
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* instances of the management interface. |
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*/ |
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public class ManagementFactoryHelper { |
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static { |
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// make sure that the management lib is loaded within |
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// java.lang.management.ManagementFactory |
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sun.misc.Unsafe.getUnsafe().ensureClassInitialized(ManagementFactory.class); |
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} |
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private static final VMManagement jvm = new VMManagementImpl(); |
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private ManagementFactoryHelper() {}; |
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public static VMManagement getVMManagement() { |
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return jvm; |
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} |
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private static ClassLoadingImpl classMBean = null; |
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private static MemoryImpl memoryMBean = null; |
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private static ThreadImpl threadMBean = null; |
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private static RuntimeImpl runtimeMBean = null; |
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private static CompilationImpl compileMBean = null; |
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private static BaseOperatingSystemImpl osMBean = null; |
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public static synchronized ClassLoadingMXBean getClassLoadingMXBean() { |
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if (classMBean == null) { |
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classMBean = new ClassLoadingImpl(jvm); |
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} |
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return classMBean; |
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} |
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public static synchronized MemoryMXBean getMemoryMXBean() { |
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if (memoryMBean == null) { |
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memoryMBean = new MemoryImpl(jvm); |
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} |
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return memoryMBean; |
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} |
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public static synchronized ThreadMXBean getThreadMXBean() { |
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if (threadMBean == null) { |
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threadMBean = new ThreadImpl(jvm); |
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} |
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return threadMBean; |
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} |
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public static synchronized RuntimeMXBean getRuntimeMXBean() { |
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if (runtimeMBean == null) { |
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runtimeMBean = new RuntimeImpl(jvm); |
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} |
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return runtimeMBean; |
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} |
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public static synchronized CompilationMXBean getCompilationMXBean() { |
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if (compileMBean == null && jvm.getCompilerName() != null) { |
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compileMBean = new CompilationImpl(jvm); |
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} |
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return compileMBean; |
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} |
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public static synchronized OperatingSystemMXBean getOperatingSystemMXBean() { |
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if (osMBean == null) { |
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osMBean = new BaseOperatingSystemImpl(jvm); |
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} |
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return osMBean; |
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} |
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public static List<MemoryPoolMXBean> getMemoryPoolMXBeans() { |
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MemoryPoolMXBean[] pools = MemoryImpl.getMemoryPools(); |
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List<MemoryPoolMXBean> list = new ArrayList<>(pools.length); |
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for (MemoryPoolMXBean p : pools) { |
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list.add(p); |
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} |
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return list; |
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} |
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public static List<MemoryManagerMXBean> getMemoryManagerMXBeans() { |
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MemoryManagerMXBean[] mgrs = MemoryImpl.getMemoryManagers(); |
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List<MemoryManagerMXBean> result = new ArrayList<>(mgrs.length); |
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for (MemoryManagerMXBean m : mgrs) { |
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result.add(m); |
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} |
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return result; |
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} |
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public static List<GarbageCollectorMXBean> getGarbageCollectorMXBeans() { |
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MemoryManagerMXBean[] mgrs = MemoryImpl.getMemoryManagers(); |
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List<GarbageCollectorMXBean> result = new ArrayList<>(mgrs.length); |
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for (MemoryManagerMXBean m : mgrs) { |
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if (GarbageCollectorMXBean.class.isInstance(m)) { |
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result.add(GarbageCollectorMXBean.class.cast(m)); |
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} |
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} |
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return result; |
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} |
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public static PlatformLoggingMXBean getPlatformLoggingMXBean() { |
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if (LoggingSupport.isAvailable()) { |
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return PlatformLoggingImpl.instance; |
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} else { |
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return null; |
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} |
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} |
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/** |
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* The logging MXBean object is an instance of |
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* PlatformLoggingMXBean and java.util.logging.LoggingMXBean |
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* but it can't directly implement two MXBean interfaces |
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* as a compliant MXBean implements exactly one MXBean interface, |
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* or if it implements one interface that is a subinterface of |
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* all the others; otherwise, it is a non-compliant MXBean |
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* and MBeanServer will throw NotCompliantMBeanException. |
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* See the Definition of an MXBean section in javax.management.MXBean spec. |
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* |
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* To create a compliant logging MXBean, define a LoggingMXBean interface |
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* that extend PlatformLoggingMXBean and j.u.l.LoggingMXBean |
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*/ |
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public interface LoggingMXBean |
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extends PlatformLoggingMXBean, java.util.logging.LoggingMXBean { |
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} |
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static class PlatformLoggingImpl implements LoggingMXBean |
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{ |
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final static PlatformLoggingMXBean instance = new PlatformLoggingImpl(); |
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final static String LOGGING_MXBEAN_NAME = "java.util.logging:type=Logging"; |
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|
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private volatile ObjectName objname; // created lazily |
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@Override |
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public ObjectName getObjectName() { |
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ObjectName result = objname; |
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if (result == null) { |
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synchronized (this) { |
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result = objname; |
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if (result == null) { |
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result = Util.newObjectName(LOGGING_MXBEAN_NAME); |
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objname = result; |
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} |
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} |
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} |
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return result; |
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} |
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@Override |
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public java.util.List<String> getLoggerNames() { |
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return LoggingSupport.getLoggerNames(); |
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} |
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@Override |
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public String getLoggerLevel(String loggerName) { |
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return LoggingSupport.getLoggerLevel(loggerName); |
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} |
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@Override |
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public void setLoggerLevel(String loggerName, String levelName) { |
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LoggingSupport.setLoggerLevel(loggerName, levelName); |
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} |
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|
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@Override |
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public String getParentLoggerName(String loggerName) { |
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return LoggingSupport.getParentLoggerName(loggerName); |
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} |
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} |
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|
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private static List<BufferPoolMXBean> bufferPools = null; |
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public static synchronized List<BufferPoolMXBean> getBufferPoolMXBeans() { |
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if (bufferPools == null) { |
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bufferPools = new ArrayList<>(2); |
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bufferPools.add(createBufferPoolMXBean(sun.misc.SharedSecrets.getJavaNioAccess() |
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.getDirectBufferPool())); |
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bufferPools.add(createBufferPoolMXBean(sun.nio.ch.FileChannelImpl |
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.getMappedBufferPool())); |
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} |
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return bufferPools; |
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} |
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|
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private final static String BUFFER_POOL_MXBEAN_NAME = "java.nio:type=BufferPool"; |
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|
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/** |
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* Creates management interface for the given buffer pool. |
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*/ |
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private static BufferPoolMXBean |
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createBufferPoolMXBean(final sun.misc.JavaNioAccess.BufferPool pool) |
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{ |
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return new BufferPoolMXBean() { |
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private volatile ObjectName objname; // created lazily |
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|
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@Override |
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public ObjectName getObjectName() { |
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ObjectName result = objname; |
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if (result == null) { |
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synchronized (this) { |
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result = objname; |
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|
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if (result == null) { |
4156 | 236 |
result = Util.newObjectName(BUFFER_POOL_MXBEAN_NAME + |
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",name=" + pool.getName()); |
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objname = result; |
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|
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} |
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|
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} |
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|
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} |
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|
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return result; |
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|
243 |
} |
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|
244 |
@Override |
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|
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public String getName() { |
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|
246 |
return pool.getName(); |
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|
247 |
} |
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|
248 |
@Override |
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|
249 |
public long getCount() { |
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|
250 |
return pool.getCount(); |
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|
251 |
} |
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|
252 |
@Override |
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|
253 |
public long getTotalCapacity() { |
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|
254 |
return pool.getTotalCapacity(); |
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|
255 |
} |
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|
256 |
@Override |
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|
257 |
public long getMemoryUsed() { |
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|
258 |
return pool.getMemoryUsed(); |
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|
259 |
} |
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|
260 |
}; |
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|
261 |
} |
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|
262 |
|
2 | 263 |
private static HotspotRuntime hsRuntimeMBean = null; |
264 |
private static HotspotClassLoading hsClassMBean = null; |
|
265 |
private static HotspotThread hsThreadMBean = null; |
|
266 |
private static HotspotCompilation hsCompileMBean = null; |
|
267 |
private static HotspotMemory hsMemoryMBean = null; |
|
268 |
||
269 |
/** |
|
270 |
* This method is for testing only. |
|
271 |
*/ |
|
272 |
public static synchronized HotspotRuntimeMBean getHotspotRuntimeMBean() { |
|
273 |
if (hsRuntimeMBean == null) { |
|
274 |
hsRuntimeMBean = new HotspotRuntime(jvm); |
|
275 |
} |
|
276 |
return hsRuntimeMBean; |
|
277 |
} |
|
278 |
||
279 |
/** |
|
280 |
* This method is for testing only. |
|
281 |
*/ |
|
282 |
public static synchronized HotspotClassLoadingMBean getHotspotClassLoadingMBean() { |
|
283 |
if (hsClassMBean == null) { |
|
284 |
hsClassMBean = new HotspotClassLoading(jvm); |
|
285 |
} |
|
286 |
return hsClassMBean; |
|
287 |
} |
|
288 |
||
289 |
/** |
|
290 |
* This method is for testing only. |
|
291 |
*/ |
|
292 |
public static synchronized HotspotThreadMBean getHotspotThreadMBean() { |
|
293 |
if (hsThreadMBean == null) { |
|
294 |
hsThreadMBean = new HotspotThread(jvm); |
|
295 |
} |
|
296 |
return hsThreadMBean; |
|
297 |
} |
|
298 |
||
299 |
/** |
|
300 |
* This method is for testing only. |
|
301 |
*/ |
|
302 |
public static synchronized HotspotMemoryMBean getHotspotMemoryMBean() { |
|
303 |
if (hsMemoryMBean == null) { |
|
304 |
hsMemoryMBean = new HotspotMemory(jvm); |
|
305 |
} |
|
306 |
return hsMemoryMBean; |
|
307 |
} |
|
308 |
||
309 |
/** |
|
310 |
* This method is for testing only. |
|
311 |
*/ |
|
312 |
public static synchronized HotspotCompilationMBean getHotspotCompilationMBean() { |
|
313 |
if (hsCompileMBean == null) { |
|
314 |
hsCompileMBean = new HotspotCompilation(jvm); |
|
315 |
} |
|
316 |
return hsCompileMBean; |
|
317 |
} |
|
318 |
||
319 |
/** |
|
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|
320 |
* Registers a given MBean if not registered in the MBeanServer; |
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|
321 |
* otherwise, just return. |
2 | 322 |
*/ |
323 |
private static void addMBean(MBeanServer mbs, Object mbean, String mbeanName) { |
|
324 |
try { |
|
4156 | 325 |
final ObjectName objName = Util.newObjectName(mbeanName); |
2 | 326 |
|
327 |
// inner class requires these fields to be final |
|
328 |
final MBeanServer mbs0 = mbs; |
|
329 |
final Object mbean0 = mbean; |
|
401
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|
330 |
AccessController.doPrivileged(new PrivilegedExceptionAction<Void>() { |
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|
331 |
public Void run() throws MBeanRegistrationException, |
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|
332 |
NotCompliantMBeanException { |
2 | 333 |
try { |
401
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|
334 |
mbs0.registerMBean(mbean0, objName); |
2 | 335 |
return null; |
336 |
} catch (InstanceAlreadyExistsException e) { |
|
337 |
// if an instance with the object name exists in |
|
338 |
// the MBeanServer ignore the exception |
|
339 |
} |
|
340 |
return null; |
|
341 |
} |
|
342 |
}); |
|
343 |
} catch (PrivilegedActionException e) { |
|
344 |
throw Util.newException(e.getException()); |
|
345 |
} |
|
346 |
} |
|
347 |
||
348 |
private final static String HOTSPOT_CLASS_LOADING_MBEAN_NAME = |
|
349 |
"sun.management:type=HotspotClassLoading"; |
|
350 |
||
351 |
private final static String HOTSPOT_COMPILATION_MBEAN_NAME = |
|
352 |
"sun.management:type=HotspotCompilation"; |
|
353 |
||
354 |
private final static String HOTSPOT_MEMORY_MBEAN_NAME = |
|
355 |
"sun.management:type=HotspotMemory"; |
|
356 |
||
357 |
private static final String HOTSPOT_RUNTIME_MBEAN_NAME = |
|
358 |
"sun.management:type=HotspotRuntime"; |
|
359 |
||
360 |
private final static String HOTSPOT_THREAD_MBEAN_NAME = |
|
361 |
"sun.management:type=HotspotThreading"; |
|
362 |
||
363 |
static void registerInternalMBeans(MBeanServer mbs) { |
|
364 |
// register all internal MBeans if not registered |
|
365 |
// No exception is thrown if a MBean with that object name |
|
401
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|
366 |
// already registered |
2 | 367 |
addMBean(mbs, getHotspotClassLoadingMBean(), |
401
ef01e0dccd63
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diff
changeset
|
368 |
HOTSPOT_CLASS_LOADING_MBEAN_NAME); |
2 | 369 |
addMBean(mbs, getHotspotMemoryMBean(), |
401
ef01e0dccd63
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diff
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|
370 |
HOTSPOT_MEMORY_MBEAN_NAME); |
2 | 371 |
addMBean(mbs, getHotspotRuntimeMBean(), |
401
ef01e0dccd63
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diff
changeset
|
372 |
HOTSPOT_RUNTIME_MBEAN_NAME); |
2 | 373 |
addMBean(mbs, getHotspotThreadMBean(), |
401
ef01e0dccd63
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diff
changeset
|
374 |
HOTSPOT_THREAD_MBEAN_NAME); |
2 | 375 |
|
376 |
// CompilationMBean may not exist |
|
377 |
if (getCompilationMXBean() != null) { |
|
378 |
addMBean(mbs, getHotspotCompilationMBean(), |
|
401
ef01e0dccd63
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diff
changeset
|
379 |
HOTSPOT_COMPILATION_MBEAN_NAME); |
2 | 380 |
} |
381 |
} |
|
382 |
||
383 |
private static void unregisterMBean(MBeanServer mbs, String mbeanName) { |
|
384 |
try { |
|
4156 | 385 |
final ObjectName objName = Util.newObjectName(mbeanName); |
2 | 386 |
|
387 |
// inner class requires these fields to be final |
|
388 |
final MBeanServer mbs0 = mbs; |
|
401
ef01e0dccd63
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diff
changeset
|
389 |
AccessController.doPrivileged(new PrivilegedExceptionAction<Void>() { |
ef01e0dccd63
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parents:
2
diff
changeset
|
390 |
public Void run() throws MBeanRegistrationException, |
2 | 391 |
RuntimeOperationsException { |
392 |
try { |
|
393 |
mbs0.unregisterMBean(objName); |
|
394 |
} catch (InstanceNotFoundException e) { |
|
395 |
// ignore exception if not found |
|
396 |
} |
|
397 |
return null; |
|
398 |
} |
|
399 |
}); |
|
400 |
} catch (PrivilegedActionException e) { |
|
401 |
throw Util.newException(e.getException()); |
|
402 |
} |
|
403 |
} |
|
404 |
||
405 |
static void unregisterInternalMBeans(MBeanServer mbs) { |
|
406 |
// unregister all internal MBeans |
|
407 |
unregisterMBean(mbs, HOTSPOT_CLASS_LOADING_MBEAN_NAME); |
|
408 |
unregisterMBean(mbs, HOTSPOT_MEMORY_MBEAN_NAME); |
|
409 |
unregisterMBean(mbs, HOTSPOT_RUNTIME_MBEAN_NAME); |
|
410 |
unregisterMBean(mbs, HOTSPOT_THREAD_MBEAN_NAME); |
|
411 |
||
412 |
// CompilationMBean may not exist |
|
413 |
if (getCompilationMXBean() != null) { |
|
414 |
unregisterMBean(mbs, HOTSPOT_COMPILATION_MBEAN_NAME); |
|
415 |
} |
|
416 |
} |
|
417 |
||
418 |
public static boolean isThreadSuspended(int state) { |
|
419 |
return ((state & JMM_THREAD_STATE_FLAG_SUSPENDED) != 0); |
|
420 |
} |
|
421 |
||
422 |
public static boolean isThreadRunningNative(int state) { |
|
423 |
return ((state & JMM_THREAD_STATE_FLAG_NATIVE) != 0); |
|
424 |
} |
|
425 |
||
426 |
public static Thread.State toThreadState(int state) { |
|
427 |
// suspended and native bits may be set in state |
|
428 |
int threadStatus = state & ~JMM_THREAD_STATE_FLAG_MASK; |
|
429 |
return sun.misc.VM.toThreadState(threadStatus); |
|
430 |
} |
|
431 |
||
432 |
// These values are defined in jmm.h |
|
433 |
private static final int JMM_THREAD_STATE_FLAG_MASK = 0xFFF00000; |
|
434 |
private static final int JMM_THREAD_STATE_FLAG_SUSPENDED = 0x00100000; |
|
435 |
private static final int JMM_THREAD_STATE_FLAG_NATIVE = 0x00400000; |
|
436 |
||
30355
e37c7eba132f
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diff
changeset
|
437 |
// Invoked by the VM |
e37c7eba132f
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parents:
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diff
changeset
|
438 |
private static MemoryPoolMXBean createMemoryPool |
e37c7eba132f
8042901: Allow com.sun.management to be in a different module to java.lang.management
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parents:
28775
diff
changeset
|
439 |
(String name, boolean isHeap, long uThreshold, long gcThreshold) { |
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return new MemoryPoolImpl(name, isHeap, uThreshold, gcThreshold); |
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} |
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|
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private static MemoryManagerMXBean createMemoryManager(String name) { |
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return new MemoryManagerImpl(name); |
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} |
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|
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private static GarbageCollectorMXBean |
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createGarbageCollector(String name, String type) { |
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|
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// ignore type parameter which is for future extension |
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return new GarbageCollectorImpl(name); |
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} |
2 | 453 |
} |