1 /*
   2  * Copyright (c) 2004, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 package sun.tools.jconsole;
  26 
  27 import java.lang.management.MemoryUsage;
  28 
  29 public class MemoryPoolStat {
  30     private String      poolName;
  31     private long        usageThreshold;
  32     private MemoryUsage usage;
  33     private long        lastGcId;
  34     private long        lastGcStartTime;
  35     private long        lastGcEndTime;
  36     private long        collectThreshold;
  37     private MemoryUsage beforeGcUsage;
  38     private MemoryUsage afterGcUsage;
  39 
  40     MemoryPoolStat(String name,
  41                    long usageThreshold,
  42                    MemoryUsage usage,
  43                    long lastGcId,
  44                    long lastGcStartTime,
  45                    long lastGcEndTime,
  46                    long collectThreshold,
  47                    MemoryUsage beforeGcUsage,
  48                    MemoryUsage afterGcUsage) {
  49         this.poolName = name;
  50         this.usageThreshold = usageThreshold;
  51         this.usage = usage;
  52         this.lastGcId = lastGcId;
  53         this.lastGcStartTime = lastGcStartTime;
  54         this.lastGcEndTime = lastGcEndTime;
  55         this.collectThreshold = collectThreshold;
  56         this.beforeGcUsage = beforeGcUsage;
  57         this.afterGcUsage = afterGcUsage;
  58     }
  59 
  60     /**
  61      * Returns the memory pool name.
  62      */
  63     public String getPoolName() {
  64         return poolName;
  65     }
  66 
  67     /**
  68      * Returns the current memory usage.
  69      */
  70     public MemoryUsage getUsage() {
  71         return usage;
  72     }
  73 
  74     /**
  75      * Returns the current usage threshold.
  76      * -1 if not supported.
  77      */
  78     public long getUsageThreshold() {
  79         return usageThreshold;
  80     }
  81 
  82     /**
  83      * Returns the current collection usage threshold.
  84      * -1 if not supported.
  85      */
  86     public long getCollectionUsageThreshold() {
  87         return collectThreshold;
  88     }
  89 
  90     /**
  91      * Returns the Id of GC.
  92      */
  93     public long getLastGcId() {
  94         return lastGcId;
  95     }
  96 
  97 
  98     /**
  99      * Returns the start time of the most recent GC on
 100      * the memory pool for this statistics in milliseconds.
 101      *
 102      * Return 0 if no GC occurs.
 103      */
 104     public long getLastGcStartTime() {
 105         return lastGcStartTime;
 106     }
 107 
 108     /**
 109      * Returns the end time of the most recent GC on
 110      * the memory pool for this statistics in milliseconds.
 111      *
 112      * Return 0 if no GC occurs.
 113      */
 114     public long getLastGcEndTime() {
 115         return lastGcEndTime;
 116     }
 117 
 118     /**
 119      * Returns the memory usage before the most recent GC started.
 120      * null if no GC occurs.
 121      */
 122     public MemoryUsage getBeforeGcUsage() {
 123         return beforeGcUsage;
 124     }
 125 
 126     /**
 127      * Returns the memory usage after the most recent GC finished.
 128      * null if no GC occurs.
 129      */
 130     public MemoryUsage getAfterGcUsage() {
 131         return beforeGcUsage;
 132     }
 133 }