/*
*
*
* Copyright 1990-2007 Sun Microsystems, Inc. All Rights Reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER
*
* This program 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.
*
* This program 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 at /legal/license.txt).
*
* 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 Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 or visit www.sun.com if you need additional
* information or have any questions.
*/
package com.sun.cldchi.tools.memoryprofiler.data;
/**
* This class is container for all statististics for a Java Class.
* It provides the following information: number of objects, total size of all object of the class,
* percentage of live objects, percentage of old generation objects
*
* @see com.sun.cldchi.tools.memoryprofiler.data.MPDataProvider
*
*/
public class ClassStatistics {
public final String _class_name;
private int _count;
private int _total_size;
private static int _total_heap_size;
private int _dead_size;
private int _old_gen_size;
public ClassStatistics(String class_name) {
_class_name = class_name;
_count = _total_size = _dead_size = _old_gen_size = 0;
}
public int getHeapPercentage() {
if (_total_heap_size == 0) return 0;
return (10000*_total_size) / _total_heap_size;
}
public int getAverageSize() {
if (_count== 0) return 0;
return _total_size / _count;
}
public int getLivePercentage() {
if (_total_size == 0) return 0;
return (10000*(_total_size - _dead_size)) / _total_size;
}
public int getOldGenPercentage() {
if (_total_size == 0) return 0;
return (10000*_old_gen_size) / _total_size;
}
public void add(JavaObject obj, int old_gen_end) {
_total_heap_size += obj.size;
_count++;
_total_size += obj.size;
if (!obj.alive()) {
_dead_size += obj.size;
}
if (obj.address < old_gen_end) {
_old_gen_size += obj.size;
}
}
public static void reset() {
_total_heap_size= 0;
}
public int getCount() {return _count;}
public int getTotalSize() {return _total_size;}
}
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