/* * Copyright (c) 1997, 2008, 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. *//* * The Original Code is HAT. The Initial Developer of the * Original Code is Bill Foote, with contributions from others * at JavaSoft/Sun. */package com.sun.tools.hat.internal.server;import com.sun.tools.hat.internal.model.*;import java.util.*;public class FinalizerSummaryQuery extends QueryHandler { public void run() { Enumeration objs = snapshot.getFinalizerObjects(); startHtml("Finalizer Summary"); out.println("<p align='center'>"); out.println("<b><a href='/'>All Classes (excluding platform)</a></b>"); out.println("</p>"); printFinalizerSummary(objs); endHtml(); } private static class HistogramElement { public HistogramElement(JavaClass clazz) { this.clazz = clazz; } public void updateCount() { this.count++; } public int compare(HistogramElement other) { long diff = other.count - count; return (diff == 0L)? 0 : ((diff > 0L)? +1 : -1); } public JavaClass getClazz() { return clazz; } public long getCount() { return count; } private JavaClass clazz; private long count; } private void printFinalizerSummary(Enumeration objs) { int count = 0; Map<JavaClass, HistogramElement> map = new HashMap<JavaClass, HistogramElement>(); while (objs.hasMoreElements()) { JavaHeapObject obj = (JavaHeapObject) objs.nextElement(); count++; JavaClass clazz = obj.getClazz(); if (! map.containsKey(clazz)) { map.put(clazz, new HistogramElement(clazz)); } HistogramElement element = map.get(clazz); element.updateCount(); } out.println("<p align='center'>"); out.println("<b>"); out.println("Total "); if (count != 0) { out.print("<a href='/finalizerObjects/'>instances</a>"); } else { out.print("instances"); } out.println(" pending finalization: "); out.print(count); out.println("</b></p><hr>"); if (count == 0) { return; } // calculate and print histogram HistogramElement[] elements = new HistogramElement[map.size()]; map.values().toArray(elements); Arrays.sort(elements, new Comparator<HistogramElement>() { public int compare(HistogramElement o1, HistogramElement o2) { return o1.compare(o2); } }); out.println("<table border=1 align=center>"); out.println("<tr><th>Count</th><th>Class</th></tr>"); for (int j = 0; j < elements.length; j++) { out.println("<tr><td>"); out.println(elements[j].getCount()); out.println("</td><td>"); printClass(elements[j].getClazz()); out.println("</td><tr>"); } out.println("</table>"); }}
/*
* Copyright (c) 1997, 2008, 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.
*/
/*
* The Original Code is HAT. The Initial Developer of the
* Original Code is Bill Foote, with contributions from others
* at JavaSoft/Sun.
*/
package com.sun.tools.hat.internal.server;
import com.sun.tools.hat.internal.model.*;
import java.util.*;
public class FinalizerSummaryQuery extends QueryHandler {
public void run() {
Enumeration objs = snapshot.getFinalizerObjects();
startHtml("Finalizer Summary");
out.println("<p align='center'>");
out.println("<b><a href='/'>All Classes (excluding platform)</a></b>");
out.println("</p>");
printFinalizerSummary(objs);
endHtml();
}
private static class HistogramElement {
public HistogramElement(JavaClass clazz) {
this.clazz = clazz;
}
public void updateCount() {
this.count++;
}
public int compare(HistogramElement other) {
long diff = other.count - count;
return (diff == 0L)? 0 : ((diff > 0L)? +1 : -1);
}
public JavaClass getClazz() {
return clazz;
}
public long getCount() {
return count;
}
private JavaClass clazz;
private long count;
}
private void printFinalizerSummary(Enumeration objs) {
int count = 0;
Map<JavaClass, HistogramElement> map = new HashMap<JavaClass, HistogramElement>();
while (objs.hasMoreElements()) {
JavaHeapObject obj = (JavaHeapObject) objs.nextElement();
count++;
JavaClass clazz = obj.getClazz();
if (! map.containsKey(clazz)) {
map.put(clazz, new HistogramElement(clazz));
}
HistogramElement element = map.get(clazz);
element.updateCount();
}
out.println("<p align='center'>");
out.println("<b>");
out.println("Total ");
if (count != 0) {
out.print("<a href='/finalizerObjects/'>instances</a>");
} else {
out.print("instances");
}
out.println(" pending finalization: ");
out.print(count);
out.println("</b></p><hr>");
if (count == 0) {
return;
}
// calculate and print histogram
HistogramElement[] elements = new HistogramElement[map.size()];
map.values().toArray(elements);
Arrays.sort(elements, new Comparator<HistogramElement>() {
public int compare(HistogramElement o1, HistogramElement o2) {
return o1.compare(o2);
}
});
out.println("<table border=1 align=center>");
out.println("<tr><th>Count</th><th>Class</th></tr>");
for (int j = 0; j < elements.length; j++) {
out.println("<tr><td>");
out.println(elements[j].getCount());
out.println("</td><td>");
printClass(elements[j].getClazz());
out.println("</td><tr>");
}
out.println("</table>");
}
}