author | weijun |
Thu, 11 Dec 2014 15:23:02 +0800 | |
changeset 27957 | 24b4e6082f19 |
parent 25859 | 3317bb8137f4 |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2003, 2014, 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.GarbageCollectorMXBean; |
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import java.lang.management.MemoryUsage; |
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import javax.management.openmbean.OpenType; |
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import javax.management.openmbean.SimpleType; |
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import javax.management.openmbean.TabularType; |
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import javax.management.openmbean.TabularData; |
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import javax.management.openmbean.TabularDataSupport; |
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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 com.sun.management.GcInfo; |
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/** |
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* Helper class to build composite data. |
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*/ |
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public class GcInfoBuilder { |
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private final GarbageCollectorMXBean gc; |
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private final String[] poolNames; |
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private String[] allItemNames; |
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// GC-specific composite type: |
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// Each GarbageCollectorMXBean may have different GC-specific attributes |
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// the CompositeType for the GcInfo could be different. |
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private CompositeType gcInfoCompositeType; |
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// GC-specific items |
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private final int gcExtItemCount; |
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private final String[] gcExtItemNames; |
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private final String[] gcExtItemDescs; |
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private final char[] gcExtItemTypes; |
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GcInfoBuilder(GarbageCollectorMXBean gc, String[] poolNames) { |
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this.gc = gc; |
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this.poolNames = poolNames; |
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this.gcExtItemCount = getNumGcExtAttributes(gc); |
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this.gcExtItemNames = new String[gcExtItemCount]; |
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this.gcExtItemDescs = new String[gcExtItemCount]; |
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this.gcExtItemTypes = new char[gcExtItemCount]; |
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// Fill the information about extension attributes |
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fillGcAttributeInfo(gc, gcExtItemCount, gcExtItemNames, |
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gcExtItemTypes, gcExtItemDescs); |
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// lazily build the CompositeType for the GcInfo |
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// including the GC-specific extension attributes |
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this.gcInfoCompositeType = null; |
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} |
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GcInfo getLastGcInfo() { |
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MemoryUsage[] usageBeforeGC = new MemoryUsage[poolNames.length]; |
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MemoryUsage[] usageAfterGC = new MemoryUsage[poolNames.length]; |
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Object[] values = new Object[gcExtItemCount]; |
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return getLastGcInfo0(gc, gcExtItemCount, values, gcExtItemTypes, |
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usageBeforeGC, usageAfterGC); |
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} |
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public String[] getPoolNames() { |
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return poolNames; |
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} |
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int getGcExtItemCount() { |
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return gcExtItemCount; |
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} |
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// Returns the CompositeType for the GcInfo including |
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// the extension attributes |
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synchronized CompositeType getGcInfoCompositeType() { |
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if (gcInfoCompositeType != null) |
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return gcInfoCompositeType; |
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// First, fill with the attributes in the GcInfo |
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String[] gcInfoItemNames = GcInfoCompositeData.getBaseGcInfoItemNames(); |
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25405
aa7f539c3569
8049820: Fix raw and unchecked lint warnings in sun.management
darcy
parents:
14342
diff
changeset
|
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OpenType<?>[] gcInfoItemTypes = GcInfoCompositeData.getBaseGcInfoItemTypes(); |
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int numGcInfoItems = gcInfoItemNames.length; |
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int itemCount = numGcInfoItems + gcExtItemCount; |
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allItemNames = new String[itemCount]; |
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String[] allItemDescs = new String[itemCount]; |
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a9d059c15b80
7117570: Warnings in sun.mangement.* and its subpackages
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OpenType<?>[] allItemTypes = new OpenType<?>[itemCount]; |
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System.arraycopy(gcInfoItemNames, 0, allItemNames, 0, numGcInfoItems); |
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System.arraycopy(gcInfoItemNames, 0, allItemDescs, 0, numGcInfoItems); |
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System.arraycopy(gcInfoItemTypes, 0, allItemTypes, 0, numGcInfoItems); |
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// Then fill with the extension GC-specific attributes, if any. |
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if (gcExtItemCount > 0) { |
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fillGcAttributeInfo(gc, gcExtItemCount, gcExtItemNames, |
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gcExtItemTypes, gcExtItemDescs); |
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System.arraycopy(gcExtItemNames, 0, allItemNames, |
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numGcInfoItems, gcExtItemCount); |
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System.arraycopy(gcExtItemDescs, 0, allItemDescs, |
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numGcInfoItems, gcExtItemCount); |
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for (int i = numGcInfoItems, j = 0; j < gcExtItemCount; i++, j++) { |
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switch (gcExtItemTypes[j]) { |
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case 'Z': |
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allItemTypes[i] = SimpleType.BOOLEAN; |
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break; |
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case 'B': |
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allItemTypes[i] = SimpleType.BYTE; |
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break; |
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case 'C': |
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allItemTypes[i] = SimpleType.CHARACTER; |
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break; |
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case 'S': |
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allItemTypes[i] = SimpleType.SHORT; |
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break; |
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case 'I': |
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allItemTypes[i] = SimpleType.INTEGER; |
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break; |
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case 'J': |
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allItemTypes[i] = SimpleType.LONG; |
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break; |
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case 'F': |
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allItemTypes[i] = SimpleType.FLOAT; |
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break; |
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case 'D': |
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allItemTypes[i] = SimpleType.DOUBLE; |
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break; |
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default: |
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401
ef01e0dccd63
6610094: Add generic support for platform MXBeans of any type (also fixed 6681031)
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throw new AssertionError( |
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"Unsupported type [" + gcExtItemTypes[i] + "]"); |
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} |
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} |
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} |
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CompositeType gict = null; |
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try { |
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final String typeName = |
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"sun.management." + gc.getName() + ".GcInfoCompositeType"; |
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gict = new CompositeType(typeName, |
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"CompositeType for GC info for " + |
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gc.getName(), |
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allItemNames, |
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allItemDescs, |
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allItemTypes); |
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} catch (OpenDataException e) { |
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// shouldn't reach here |
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throw Util.newException(e); |
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} |
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gcInfoCompositeType = gict; |
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return gcInfoCompositeType; |
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} |
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synchronized String[] getItemNames() { |
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if (allItemNames == null) { |
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// initialize when forming the composite type |
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getGcInfoCompositeType(); |
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} |
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return allItemNames; |
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} |
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// Retrieve information about extension attributes |
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private native int getNumGcExtAttributes(GarbageCollectorMXBean gc); |
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private native void fillGcAttributeInfo(GarbageCollectorMXBean gc, |
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int numAttributes, |
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String[] attributeNames, |
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char[] types, |
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String[] descriptions); |
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/** |
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* Returns the last GcInfo |
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* |
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* @param gc GarbageCollectorMXBean that the gc info is associated with. |
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* @param numExtAtts number of extension attributes |
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* @param extAttValues Values of extension attributes to be filled. |
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* @param before Memory usage before GC to be filled. |
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* @param after Memory usage after GC to be filled. |
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*/ |
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private native GcInfo getLastGcInfo0(GarbageCollectorMXBean gc, |
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int numExtAtts, |
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Object[] extAttValues, |
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char[] extAttTypes, |
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MemoryUsage[] before, |
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MemoryUsage[] after); |
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} |