diff -r 1dbddb2a1971 -r 07146758775b jdk/src/java.management/share/classes/com/sun/management/GcInfo.java --- a/jdk/src/java.management/share/classes/com/sun/management/GcInfo.java Thu May 07 20:50:57 2015 -0700 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,288 +0,0 @@ -/* - * Copyright (c) 2003, 2014, Oracle and/or its affiliates. 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. Oracle designates this - * particular file as subject to the "Classpath" exception as provided - * by Oracle 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 Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA - * or visit www.oracle.com if you need additional information or have any - * questions. - */ - -package com.sun.management; - -import java.lang.management.MemoryUsage; -import javax.management.openmbean.CompositeData; -import javax.management.openmbean.CompositeDataView; -import javax.management.openmbean.CompositeType; -import java.util.Collection; -import java.util.Collections; -import java.util.HashMap; -import java.util.Map; -import java.util.List; -import sun.management.GcInfoCompositeData; -import sun.management.GcInfoBuilder; - -/** - * Garbage collection information. It contains the following - * information for one garbage collection as well as GC-specific - * attributes: - *
- * - *
- * - *

- * {@code GcInfo} is a {@link CompositeData CompositeData} - * The GC-specific attributes can be obtained via the CompositeData - * interface. This is a historical relic, and other classes should - * not copy this pattern. Use {@link CompositeDataView} instead. - * - *

MXBean Mapping

- * {@code GcInfo} is mapped to a {@link CompositeData CompositeData} - * with attributes as specified in the {@link #from from} method. - * - * @author Mandy Chung - * @since 1.5 - */ -@jdk.Exported -public class GcInfo implements CompositeData, CompositeDataView { - private final long index; - private final long startTime; - private final long endTime; - private final Map usageBeforeGc; - private final Map usageAfterGc; - private final Object[] extAttributes; - private final CompositeData cdata; - private final GcInfoBuilder builder; - - private GcInfo(GcInfoBuilder builder, - long index, long startTime, long endTime, - MemoryUsage[] muBeforeGc, - MemoryUsage[] muAfterGc, - Object[] extAttributes) { - this.builder = builder; - this.index = index; - this.startTime = startTime; - this.endTime = endTime; - String[] poolNames = builder.getPoolNames(); - this.usageBeforeGc = new HashMap(poolNames.length); - this.usageAfterGc = new HashMap(poolNames.length); - for (int i = 0; i < poolNames.length; i++) { - this.usageBeforeGc.put(poolNames[i], muBeforeGc[i]); - this.usageAfterGc.put(poolNames[i], muAfterGc[i]); - } - this.extAttributes = extAttributes; - this.cdata = new GcInfoCompositeData(this, builder, extAttributes); - } - - private GcInfo(CompositeData cd) { - GcInfoCompositeData.validateCompositeData(cd); - - this.index = GcInfoCompositeData.getId(cd); - this.startTime = GcInfoCompositeData.getStartTime(cd); - this.endTime = GcInfoCompositeData.getEndTime(cd); - this.usageBeforeGc = GcInfoCompositeData.getMemoryUsageBeforeGc(cd); - this.usageAfterGc = GcInfoCompositeData.getMemoryUsageAfterGc(cd); - this.extAttributes = null; - this.builder = null; - this.cdata = cd; - } - - /** - * Returns the identifier of this garbage collection which is - * the number of collections that this collector has done. - * - * @return the identifier of this garbage collection which is - * the number of collections that this collector has done. - */ - public long getId() { - return index; - } - - /** - * Returns the start time of this GC in milliseconds - * since the Java virtual machine was started. - * - * @return the start time of this GC. - */ - public long getStartTime() { - return startTime; - } - - /** - * Returns the end time of this GC in milliseconds - * since the Java virtual machine was started. - * - * @return the end time of this GC. - */ - public long getEndTime() { - return endTime; - } - - /** - * Returns the elapsed time of this GC in milliseconds. - * - * @return the elapsed time of this GC in milliseconds. - */ - public long getDuration() { - return endTime - startTime; - } - - /** - * Returns the memory usage of all memory pools - * at the beginning of this GC. - * This method returns - * a {@code Map} of the name of a memory pool - * to the memory usage of the corresponding - * memory pool before GC starts. - * - * @return a {@code Map} of memory pool names to the memory - * usage of a memory pool before GC starts. - */ - public Map getMemoryUsageBeforeGc() { - return Collections.unmodifiableMap(usageBeforeGc); - } - - /** - * Returns the memory usage of all memory pools - * at the end of this GC. - * This method returns - * a {@code Map} of the name of a memory pool - * to the memory usage of the corresponding - * memory pool when GC finishes. - * - * @return a {@code Map} of memory pool names to the memory - * usage of a memory pool when GC finishes. - */ - public Map getMemoryUsageAfterGc() { - return Collections.unmodifiableMap(usageAfterGc); - } - - /** - * Returns a {@code GcInfo} object represented by the - * given {@code CompositeData}. The given - * {@code CompositeData} must contain - * all the following attributes: - * - *
- * - * - * - * - * - * - * - * - * - * - * - * - * - * - * - * - * - * - * - * - * - * - * - * - * - *
Attribute NameType
index{@code java.lang.Long}
startTime{@code java.lang.Long}
endTime{@code java.lang.Long}
memoryUsageBeforeGc{@code javax.management.openmbean.TabularData}
memoryUsageAfterGc{@code javax.management.openmbean.TabularData}
- *
- * - * @throws IllegalArgumentException if {@code cd} does not - * represent a {@code GcInfo} object with the attributes - * described above. - * - * @return a {@code GcInfo} object represented by {@code cd} - * if {@code cd} is not {@code null}; {@code null} otherwise. - */ - public static GcInfo from(CompositeData cd) { - if (cd == null) { - return null; - } - - if (cd instanceof GcInfoCompositeData) { - return ((GcInfoCompositeData) cd).getGcInfo(); - } else { - return new GcInfo(cd); - } - - } - - // Implementation of the CompositeData interface - public boolean containsKey(String key) { - return cdata.containsKey(key); - } - - public boolean containsValue(Object value) { - return cdata.containsValue(value); - } - - public boolean equals(Object obj) { - return cdata.equals(obj); - } - - public Object get(String key) { - return cdata.get(key); - } - - public Object[] getAll(String[] keys) { - return cdata.getAll(keys); - } - - public CompositeType getCompositeType() { - return cdata.getCompositeType(); - } - - public int hashCode() { - return cdata.hashCode(); - } - - public String toString() { - return cdata.toString(); - } - - public Collection values() { - return cdata.values(); - } - - /** - * Return the {@code CompositeData} representation of this - * {@code GcInfo}, including any GC-specific attributes. The - * returned value will have at least all the attributes described - * in the {@link #from(CompositeData) from} method, plus optionally - * other attributes. - * - * @param ct the {@code CompositeType} that the caller expects. - * This parameter is ignored and can be null. - * - * @return the {@code CompositeData} representation. - */ - public CompositeData toCompositeData(CompositeType ct) { - return cdata; - } -}