author | mchung |
Fri, 14 Sep 2012 09:47:14 -0700 | |
changeset 13803 | 889df16bef60 |
parent 11530 | a9d059c15b80 |
child 14342 | 8435a30053c1 |
permissions | -rw-r--r-- |
2 | 1 |
/* |
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* Copyright (c) 2004, 2008, Oracle and/or its affiliates. All rights reserved. |
2 | 3 |
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 |
* |
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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 |
2 | 8 |
* particular file as subject to the "Classpath" exception as provided |
5506 | 9 |
* 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.ThreadInfo; |
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import java.lang.management.MonitorInfo; |
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import java.lang.management.LockInfo; |
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import javax.management.openmbean.CompositeType; |
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import javax.management.openmbean.CompositeData; |
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import javax.management.openmbean.CompositeDataSupport; |
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import javax.management.openmbean.OpenDataException; |
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import javax.management.openmbean.OpenType; |
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/** |
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* A CompositeData for ThreadInfo for the local management support. |
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* This class avoids the performance penalty paid to the |
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* construction of a CompositeData use in the local case. |
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*/ |
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public class ThreadInfoCompositeData extends LazyCompositeData { |
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private final ThreadInfo threadInfo; |
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private final CompositeData cdata; |
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private final boolean currentVersion; |
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47 |
private ThreadInfoCompositeData(ThreadInfo ti) { |
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this.threadInfo = ti; |
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this.currentVersion = true; |
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this.cdata = null; |
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51 |
} |
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52 |
||
53 |
private ThreadInfoCompositeData(CompositeData cd) { |
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this.threadInfo = null; |
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55 |
this.currentVersion = ThreadInfoCompositeData.isCurrentVersion(cd); |
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this.cdata = cd; |
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} |
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public ThreadInfo getThreadInfo() { |
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return threadInfo; |
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61 |
} |
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public boolean isCurrentVersion() { |
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return currentVersion; |
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} |
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public static ThreadInfoCompositeData getInstance(CompositeData cd) { |
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validateCompositeData(cd); |
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return new ThreadInfoCompositeData(cd); |
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} |
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public static CompositeData toCompositeData(ThreadInfo ti) { |
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ThreadInfoCompositeData ticd = new ThreadInfoCompositeData(ti); |
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return ticd.getCompositeData(); |
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} |
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protected CompositeData getCompositeData() { |
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// Convert StackTraceElement[] to CompositeData[] |
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StackTraceElement[] stackTrace = threadInfo.getStackTrace(); |
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CompositeData[] stackTraceData = |
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new CompositeData[stackTrace.length]; |
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for (int i = 0; i < stackTrace.length; i++) { |
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StackTraceElement ste = stackTrace[i]; |
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stackTraceData[i] = StackTraceElementCompositeData.toCompositeData(ste); |
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} |
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// Convert MonitorInfo[] and LockInfo[] to CompositeData[] |
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CompositeData lockInfoData = |
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LockInfoCompositeData.toCompositeData(threadInfo.getLockInfo()); |
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// Convert LockInfo[] and MonitorInfo[] to CompositeData[] |
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LockInfo[] lockedSyncs = threadInfo.getLockedSynchronizers(); |
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CompositeData[] lockedSyncsData = |
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new CompositeData[lockedSyncs.length]; |
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for (int i = 0; i < lockedSyncs.length; i++) { |
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LockInfo li = lockedSyncs[i]; |
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lockedSyncsData[i] = LockInfoCompositeData.toCompositeData(li); |
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} |
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MonitorInfo[] lockedMonitors = threadInfo.getLockedMonitors(); |
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CompositeData[] lockedMonitorsData = |
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new CompositeData[lockedMonitors.length]; |
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for (int i = 0; i < lockedMonitors.length; i++) { |
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MonitorInfo mi = lockedMonitors[i]; |
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lockedMonitorsData[i] = MonitorInfoCompositeData.toCompositeData(mi); |
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} |
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// CONTENTS OF THIS ARRAY MUST BE SYNCHRONIZED WITH |
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// threadInfoItemNames! |
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final Object[] threadInfoItemValues = { |
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new Long(threadInfo.getThreadId()), |
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threadInfo.getThreadName(), |
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threadInfo.getThreadState().name(), |
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new Long(threadInfo.getBlockedTime()), |
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new Long(threadInfo.getBlockedCount()), |
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new Long(threadInfo.getWaitedTime()), |
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new Long(threadInfo.getWaitedCount()), |
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lockInfoData, |
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threadInfo.getLockName(), |
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new Long(threadInfo.getLockOwnerId()), |
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threadInfo.getLockOwnerName(), |
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stackTraceData, |
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new Boolean(threadInfo.isSuspended()), |
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new Boolean(threadInfo.isInNative()), |
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lockedMonitorsData, |
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lockedSyncsData, |
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}; |
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try { |
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return new CompositeDataSupport(threadInfoCompositeType, |
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threadInfoItemNames, |
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threadInfoItemValues); |
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} catch (OpenDataException e) { |
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// Should never reach here |
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throw new AssertionError(e); |
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} |
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} |
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// Attribute names |
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private static final String THREAD_ID = "threadId"; |
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private static final String THREAD_NAME = "threadName"; |
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private static final String THREAD_STATE = "threadState"; |
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private static final String BLOCKED_TIME = "blockedTime"; |
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private static final String BLOCKED_COUNT = "blockedCount"; |
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private static final String WAITED_TIME = "waitedTime"; |
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private static final String WAITED_COUNT = "waitedCount"; |
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private static final String LOCK_INFO = "lockInfo"; |
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private static final String LOCK_NAME = "lockName"; |
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private static final String LOCK_OWNER_ID = "lockOwnerId"; |
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private static final String LOCK_OWNER_NAME = "lockOwnerName"; |
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private static final String STACK_TRACE = "stackTrace"; |
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private static final String SUSPENDED = "suspended"; |
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private static final String IN_NATIVE = "inNative"; |
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private static final String LOCKED_MONITORS = "lockedMonitors"; |
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private static final String LOCKED_SYNCS = "lockedSynchronizers"; |
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private static final String[] threadInfoItemNames = { |
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THREAD_ID, |
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THREAD_NAME, |
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THREAD_STATE, |
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BLOCKED_TIME, |
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BLOCKED_COUNT, |
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WAITED_TIME, |
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WAITED_COUNT, |
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LOCK_INFO, |
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LOCK_NAME, |
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LOCK_OWNER_ID, |
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LOCK_OWNER_NAME, |
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STACK_TRACE, |
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SUSPENDED, |
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IN_NATIVE, |
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LOCKED_MONITORS, |
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LOCKED_SYNCS, |
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}; |
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// New attributes added in 6.0 ThreadInfo |
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private static final String[] threadInfoV6Attributes = { |
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LOCK_INFO, |
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LOCKED_MONITORS, |
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LOCKED_SYNCS, |
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}; |
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// Current version of ThreadInfo |
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private static final CompositeType threadInfoCompositeType; |
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// Previous version of ThreadInfo |
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private static final CompositeType threadInfoV5CompositeType; |
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private static final CompositeType lockInfoCompositeType; |
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static { |
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try { |
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threadInfoCompositeType = (CompositeType) |
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MappedMXBeanType.toOpenType(ThreadInfo.class); |
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// Form a CompositeType for JDK 5.0 ThreadInfo version |
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String[] itemNames = |
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threadInfoCompositeType.keySet().toArray(new String[0]); |
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int numV5Attributes = threadInfoItemNames.length - |
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threadInfoV6Attributes.length; |
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String[] v5ItemNames = new String[numV5Attributes]; |
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String[] v5ItemDescs = new String[numV5Attributes]; |
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OpenType<?>[] v5ItemTypes = new OpenType<?>[numV5Attributes]; |
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int i = 0; |
201 |
for (String n : itemNames) { |
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if (isV5Attribute(n)) { |
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v5ItemNames[i] = n; |
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v5ItemDescs[i] = threadInfoCompositeType.getDescription(n); |
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v5ItemTypes[i] = threadInfoCompositeType.getType(n); |
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i++; |
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} |
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} |
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210 |
threadInfoV5CompositeType = |
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new CompositeType("java.lang.management.ThreadInfo", |
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"J2SE 5.0 java.lang.management.ThreadInfo", |
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v5ItemNames, |
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v5ItemDescs, |
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v5ItemTypes); |
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} catch (OpenDataException e) { |
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// Should never reach here |
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throw new AssertionError(e); |
2 | 219 |
} |
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// Each CompositeData object has its CompositeType associated |
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// with it. So we can get the CompositeType representing LockInfo |
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// from a mapped CompositeData for any LockInfo object. |
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// Thus we construct a random LockInfo object and pass it |
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// to LockInfoCompositeData to do the conversion. |
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Object o = new Object(); |
227 |
LockInfo li = new LockInfo(o.getClass().getName(), |
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System.identityHashCode(o)); |
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CompositeData cd = LockInfoCompositeData.toCompositeData(li); |
2 | 230 |
lockInfoCompositeType = cd.getCompositeType(); |
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} |
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private static boolean isV5Attribute(String itemName) { |
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for (String n : threadInfoV6Attributes) { |
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if (itemName.equals(n)) { |
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return false; |
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} |
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} |
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return true; |
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} |
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public static boolean isCurrentVersion(CompositeData cd) { |
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if (cd == null) { |
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throw new NullPointerException("Null CompositeData"); |
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} |
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return isTypeMatched(threadInfoCompositeType, cd.getCompositeType()); |
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} |
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250 |
public long threadId() { |
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return getLong(cdata, THREAD_ID); |
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} |
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254 |
public String threadName() { |
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// The ThreadName item cannot be null so we check that |
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// it is present with a non-null value. |
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String name = getString(cdata, THREAD_NAME); |
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if (name == null) { |
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259 |
throw new IllegalArgumentException("Invalid composite data: " + |
|
260 |
"Attribute " + THREAD_NAME + " has null value"); |
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261 |
} |
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return name; |
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263 |
} |
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264 |
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265 |
public Thread.State threadState() { |
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266 |
return Thread.State.valueOf(getString(cdata, THREAD_STATE)); |
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267 |
} |
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268 |
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269 |
public long blockedTime() { |
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270 |
return getLong(cdata, BLOCKED_TIME); |
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271 |
} |
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272 |
||
273 |
public long blockedCount() { |
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274 |
return getLong(cdata, BLOCKED_COUNT); |
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275 |
} |
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276 |
||
277 |
public long waitedTime() { |
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278 |
return getLong(cdata, WAITED_TIME); |
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279 |
} |
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280 |
||
281 |
public long waitedCount() { |
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282 |
return getLong(cdata, WAITED_COUNT); |
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283 |
} |
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284 |
||
285 |
public String lockName() { |
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286 |
// The LockName and LockOwnerName can legitimately be null, |
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287 |
// we don't bother to check the value |
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288 |
return getString(cdata, LOCK_NAME); |
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289 |
} |
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290 |
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291 |
public long lockOwnerId() { |
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292 |
return getLong(cdata, LOCK_OWNER_ID); |
|
293 |
} |
|
294 |
||
295 |
public String lockOwnerName() { |
|
296 |
return getString(cdata, LOCK_OWNER_NAME); |
|
297 |
} |
|
298 |
||
299 |
public boolean suspended() { |
|
300 |
return getBoolean(cdata, SUSPENDED); |
|
301 |
} |
|
302 |
||
303 |
public boolean inNative() { |
|
304 |
return getBoolean(cdata, IN_NATIVE); |
|
305 |
} |
|
306 |
||
307 |
public StackTraceElement[] stackTrace() { |
|
308 |
CompositeData[] stackTraceData = |
|
309 |
(CompositeData[]) cdata.get(STACK_TRACE); |
|
310 |
||
311 |
// The StackTrace item cannot be null, but if it is we will get |
|
312 |
// a NullPointerException when we ask for its length. |
|
313 |
StackTraceElement[] stackTrace = |
|
314 |
new StackTraceElement[stackTraceData.length]; |
|
315 |
for (int i = 0; i < stackTraceData.length; i++) { |
|
316 |
CompositeData cdi = stackTraceData[i]; |
|
317 |
stackTrace[i] = StackTraceElementCompositeData.from(cdi); |
|
318 |
} |
|
319 |
return stackTrace; |
|
320 |
} |
|
321 |
||
322 |
// 6.0 new attributes |
|
323 |
public LockInfo lockInfo() { |
|
324 |
CompositeData lockInfoData = (CompositeData) cdata.get(LOCK_INFO); |
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return LockInfo.from(lockInfoData); |
2 | 326 |
} |
327 |
||
328 |
public MonitorInfo[] lockedMonitors() { |
|
329 |
CompositeData[] lockedMonitorsData = |
|
330 |
(CompositeData[]) cdata.get(LOCKED_MONITORS); |
|
331 |
||
332 |
// The LockedMonitors item cannot be null, but if it is we will get |
|
333 |
// a NullPointerException when we ask for its length. |
|
334 |
MonitorInfo[] monitors = |
|
335 |
new MonitorInfo[lockedMonitorsData.length]; |
|
336 |
for (int i = 0; i < lockedMonitorsData.length; i++) { |
|
337 |
CompositeData cdi = lockedMonitorsData[i]; |
|
338 |
monitors[i] = MonitorInfo.from(cdi); |
|
339 |
} |
|
340 |
return monitors; |
|
341 |
} |
|
342 |
||
343 |
public LockInfo[] lockedSynchronizers() { |
|
344 |
CompositeData[] lockedSyncsData = |
|
345 |
(CompositeData[]) cdata.get(LOCKED_SYNCS); |
|
346 |
||
347 |
// The LockedSynchronizers item cannot be null, but if it is we will |
|
348 |
// get a NullPointerException when we ask for its length. |
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LockInfo[] locks = new LockInfo[lockedSyncsData.length]; |
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for (int i = 0; i < lockedSyncsData.length; i++) { |
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CompositeData cdi = lockedSyncsData[i]; |
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locks[i] = LockInfo.from(cdi); |
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} |
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354 |
return locks; |
2 | 355 |
} |
356 |
||
357 |
/** Validate if the input CompositeData has the expected |
|
358 |
* CompositeType (i.e. contain all attributes with expected |
|
359 |
* names and types). |
|
360 |
*/ |
|
361 |
public static void validateCompositeData(CompositeData cd) { |
|
362 |
if (cd == null) { |
|
363 |
throw new NullPointerException("Null CompositeData"); |
|
364 |
} |
|
365 |
||
366 |
CompositeType type = cd.getCompositeType(); |
|
367 |
boolean currentVersion = true; |
|
368 |
if (!isTypeMatched(threadInfoCompositeType, type)) { |
|
369 |
currentVersion = false; |
|
370 |
// check if cd is an older version |
|
371 |
if (!isTypeMatched(threadInfoV5CompositeType, type)) { |
|
372 |
throw new IllegalArgumentException( |
|
373 |
"Unexpected composite type for ThreadInfo"); |
|
374 |
} |
|
375 |
} |
|
376 |
||
377 |
CompositeData[] stackTraceData = |
|
378 |
(CompositeData[]) cd.get(STACK_TRACE); |
|
379 |
if (stackTraceData == null) { |
|
380 |
throw new IllegalArgumentException( |
|
381 |
"StackTraceElement[] is missing"); |
|
382 |
} |
|
383 |
if (stackTraceData.length > 0) { |
|
384 |
StackTraceElementCompositeData.validateCompositeData(stackTraceData[0]); |
|
385 |
} |
|
386 |
||
387 |
// validate v6 attributes |
|
388 |
if (currentVersion) { |
|
389 |
CompositeData li = (CompositeData) cd.get(LOCK_INFO); |
|
390 |
if (li != null) { |
|
391 |
if (!isTypeMatched(lockInfoCompositeType, |
|
392 |
li.getCompositeType())) { |
|
393 |
throw new IllegalArgumentException( |
|
394 |
"Unexpected composite type for \"" + |
|
395 |
LOCK_INFO + "\" attribute."); |
|
396 |
} |
|
397 |
} |
|
398 |
||
399 |
CompositeData[] lms = (CompositeData[]) cd.get(LOCKED_MONITORS); |
|
400 |
if (lms == null) { |
|
401 |
throw new IllegalArgumentException("MonitorInfo[] is null"); |
|
402 |
} |
|
403 |
if (lms.length > 0) { |
|
404 |
MonitorInfoCompositeData.validateCompositeData(lms[0]); |
|
405 |
} |
|
406 |
||
407 |
CompositeData[] lsyncs = (CompositeData[]) cd.get(LOCKED_SYNCS); |
|
408 |
if (lsyncs == null) { |
|
409 |
throw new IllegalArgumentException("LockInfo[] is null"); |
|
410 |
} |
|
411 |
if (lsyncs.length > 0) { |
|
412 |
if (!isTypeMatched(lockInfoCompositeType, |
|
413 |
lsyncs[0].getCompositeType())) { |
|
414 |
throw new IllegalArgumentException( |
|
415 |
"Unexpected composite type for \"" + |
|
416 |
LOCKED_SYNCS + "\" attribute."); |
|
417 |
} |
|
418 |
} |
|
419 |
||
420 |
} |
|
421 |
} |
|
4173
d01972926813
6895875: Missing serialVersionUID in sun.management classes
mchung
parents:
715
diff
changeset
|
422 |
|
d01972926813
6895875: Missing serialVersionUID in sun.management classes
mchung
parents:
715
diff
changeset
|
423 |
private static final long serialVersionUID = 2464378539119753175L; |
2 | 424 |
} |