0N/A/*
2362N/A * Copyright (c) 1997, 2008, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/A
0N/A/*
0N/A * The Original Code is HAT. The Initial Developer of the
0N/A * Original Code is Bill Foote, with contributions from others
245N/A * at JavaSoft/Sun.
0N/A */
0N/A
0N/Apackage com.sun.tools.hat.internal.server;
0N/A
0N/Aimport com.sun.tools.hat.internal.model.*;
0N/Aimport java.util.*;
0N/A
0N/Apublic class FinalizerSummaryQuery extends QueryHandler {
0N/A public void run() {
0N/A Enumeration objs = snapshot.getFinalizerObjects();
0N/A startHtml("Finalizer Summary");
0N/A
0N/A out.println("<p align='center'>");
0N/A out.println("<b><a href='/'>All Classes (excluding platform)</a></b>");
0N/A out.println("</p>");
0N/A
0N/A printFinalizerSummary(objs);
0N/A endHtml();
0N/A }
0N/A
0N/A private static class HistogramElement {
0N/A public HistogramElement(JavaClass clazz) {
0N/A this.clazz = clazz;
0N/A }
0N/A
0N/A public void updateCount() {
0N/A this.count++;
0N/A }
0N/A
0N/A public int compare(HistogramElement other) {
0N/A long diff = other.count - count;
0N/A return (diff == 0L)? 0 : ((diff > 0L)? +1 : -1);
0N/A }
0N/A
0N/A public JavaClass getClazz() {
0N/A return clazz;
0N/A }
0N/A
0N/A public long getCount() {
0N/A return count;
0N/A }
0N/A
0N/A private JavaClass clazz;
0N/A private long count;
0N/A }
0N/A
0N/A private void printFinalizerSummary(Enumeration objs) {
0N/A int count = 0;
0N/A Map<JavaClass, HistogramElement> map = new HashMap<JavaClass, HistogramElement>();
0N/A
0N/A while (objs.hasMoreElements()) {
0N/A JavaHeapObject obj = (JavaHeapObject) objs.nextElement();
0N/A count++;
0N/A JavaClass clazz = obj.getClazz();
0N/A if (! map.containsKey(clazz)) {
0N/A map.put(clazz, new HistogramElement(clazz));
0N/A }
0N/A HistogramElement element = map.get(clazz);
0N/A element.updateCount();
0N/A }
0N/A
0N/A out.println("<p align='center'>");
0N/A out.println("<b>");
0N/A out.println("Total ");
0N/A if (count != 0) {
0N/A out.print("<a href='/finalizerObjects/'>instances</a>");
0N/A } else {
0N/A out.print("instances");
0N/A }
0N/A out.println(" pending finalization: ");
0N/A out.print(count);
0N/A out.println("</b></p><hr>");
0N/A
0N/A if (count == 0) {
0N/A return;
0N/A }
0N/A
0N/A // calculate and print histogram
0N/A HistogramElement[] elements = new HistogramElement[map.size()];
0N/A map.values().toArray(elements);
0N/A Arrays.sort(elements, new Comparator<HistogramElement>() {
0N/A public int compare(HistogramElement o1, HistogramElement o2) {
0N/A return o1.compare(o2);
0N/A }
0N/A });
0N/A
0N/A out.println("<table border=1 align=center>");
0N/A out.println("<tr><th>Count</th><th>Class</th></tr>");
0N/A for (int j = 0; j < elements.length; j++) {
0N/A out.println("<tr><td>");
0N/A out.println(elements[j].getCount());
0N/A out.println("</td><td>");
0N/A printClass(elements[j].getClazz());
0N/A out.println("</td><tr>");
0N/A }
0N/A out.println("</table>");
0N/A }
0N/A}