| /* |
| * 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.*; |
| |
| /** |
| * References by type summary |
| * |
| */ |
| public class RefsByTypeQuery extends QueryHandler { |
| public void run() { |
| JavaClass clazz = snapshot.findClass(query); |
| if (clazz == null) { |
| error("class not found: " + query); |
| } else { |
| Map<JavaClass, Long> referrersStat = new HashMap<JavaClass, Long>(); |
| final Map<JavaClass, Long> refereesStat = new HashMap<JavaClass, Long>(); |
| Enumeration instances = clazz.getInstances(false); |
| while (instances.hasMoreElements()) { |
| JavaHeapObject instance = (JavaHeapObject) instances.nextElement(); |
| if (instance.getId() == -1) { |
| continue; |
| } |
| Enumeration e = instance.getReferers(); |
| while (e.hasMoreElements()) { |
| JavaHeapObject ref = (JavaHeapObject) e.nextElement(); |
| JavaClass cl = ref.getClazz(); |
| if (cl == null) { |
| System.out.println("null class for " + ref); |
| continue; |
| } |
| Long count = referrersStat.get(cl); |
| if (count == null) { |
| count = new Long(1); |
| } else { |
| count = new Long(count.longValue() + 1); |
| } |
| referrersStat.put(cl, count); |
| } |
| instance.visitReferencedObjects( |
| new AbstractJavaHeapObjectVisitor() { |
| public void visit(JavaHeapObject obj) { |
| JavaClass cl = obj.getClazz(); |
| Long count = refereesStat.get(cl); |
| if (count == null) { |
| count = new Long(1); |
| } else { |
| count = new Long(count.longValue() + 1); |
| } |
| refereesStat.put(cl, count); |
| } |
| } |
| ); |
| } // for each instance |
| |
| startHtml("References by Type"); |
| out.println("<p align='center'>"); |
| printClass(clazz); |
| if (clazz.getId() != -1) { |
| out.println("[" + clazz.getIdString() + "]"); |
| } |
| out.println("</p>"); |
| |
| if (referrersStat.size() != 0) { |
| out.println("<h3 align='center'>Referrers by Type</h3>"); |
| print(referrersStat); |
| } |
| |
| if (refereesStat.size() != 0) { |
| out.println("<h3 align='center'>Referees by Type</h3>"); |
| print(refereesStat); |
| } |
| |
| endHtml(); |
| } // clazz != null |
| } // run |
| |
| private void print(final Map<JavaClass, Long> map) { |
| out.println("<table border='1' align='center'>"); |
| Set<JavaClass> keys = map.keySet(); |
| JavaClass[] classes = new JavaClass[keys.size()]; |
| keys.toArray(classes); |
| Arrays.sort(classes, new Comparator<JavaClass>() { |
| public int compare(JavaClass first, JavaClass second) { |
| Long count1 = map.get(first); |
| Long count2 = map.get(second); |
| return count2.compareTo(count1); |
| } |
| }); |
| |
| out.println("<tr><th>Class</th><th>Count</th></tr>"); |
| for (int i = 0; i < classes.length; i++) { |
| JavaClass clazz = classes[i]; |
| out.println("<tr><td>"); |
| out.print("<a href='/refsByType/"); |
| out.print(clazz.getIdString()); |
| out.print("'>"); |
| out.print(clazz.getName()); |
| out.println("</a>"); |
| out.println("</td><td>"); |
| out.println(map.get(clazz)); |
| out.println("</td></tr>"); |
| } |
| out.println("</table>"); |
| } |
| } |