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| 1 | /* | ||
| 2 | * Copyright (c) 1997, 2008, 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 | |||
| 26 | |||
| 27 | /* | ||
| 28 | * The Original Code is HAT. The Initial Developer of the | ||
| 29 | * Original Code is Bill Foote, with contributions from others | ||
| 30 | * at JavaSoft/Sun. | ||
| 31 | */ | ||
| 32 | |||
| 33 | package com.sun.tools.hat.internal.server; | ||
| 34 | |||
| 35 | import com.sun.tools.hat.internal.model.*; | ||
| 36 | import java.util.*; | ||
| 37 | |||
| 38 | /** | ||
| 39 | * References by type summary | ||
| 40 | * | ||
| 41 | */ | ||
| 42 | public class RefsByTypeQuery extends QueryHandler { | ||
| 43 | public void run() { | ||
| 44 | JavaClass clazz = snapshot.findClass(query); | ||
| 45 | if (clazz == null) { | ||
| 46 | error("class not found: " + query); | ||
| 47 | } else { | ||
| 48 | Map<JavaClass, Long> referrersStat = new HashMap<JavaClass, Long>(); | ||
| 49 | final Map<JavaClass, Long> refereesStat = new HashMap<JavaClass, Long>(); | ||
| 50 | Enumeration instances = clazz.getInstances(false); | ||
| 51 | while (instances.hasMoreElements()) { | ||
| 52 | JavaHeapObject instance = (JavaHeapObject) instances.nextElement(); | ||
| 53 | if (instance.getId() == -1) { | ||
| 54 | continue; | ||
| 55 | } | ||
| 56 | Enumeration e = instance.getReferers(); | ||
| 57 | while (e.hasMoreElements()) { | ||
| 58 | JavaHeapObject ref = (JavaHeapObject) e.nextElement(); | ||
| 59 | JavaClass cl = ref.getClazz(); | ||
| 60 | if (cl == null) { | ||
| 61 | System.out.println("null class for " + ref); | ||
| 62 | continue; | ||
| 63 | } | ||
| 64 | Long count = referrersStat.get(cl); | ||
| 65 | if (count == null) { | ||
| 66 | count = new Long(1); | ||
| 67 | } else { | ||
| 68 | count = new Long(count.longValue() + 1); | ||
| 69 | } | ||
| 70 | referrersStat.put(cl, count); | ||
| 71 | } | ||
| 72 | instance.visitReferencedObjects( | ||
| 73 | new AbstractJavaHeapObjectVisitor() { | ||
| 74 | public void visit(JavaHeapObject obj) { | ||
| 75 | JavaClass cl = obj.getClazz(); | ||
| 76 | Long count = refereesStat.get(cl); | ||
| 77 | if (count == null) { | ||
| 78 | count = new Long(1); | ||
| 79 | } else { | ||
| 80 | count = new Long(count.longValue() + 1); | ||
| 81 | } | ||
| 82 | refereesStat.put(cl, count); | ||
| 83 | } | ||
| 84 | } | ||
| 85 | ); | ||
| 86 | } // for each instance | ||
| 87 | |||
| 88 | startHtml("References by Type"); | ||
| 89 | out.println("<p align='center'>"); | ||
| 90 | printClass(clazz); | ||
| 91 | if (clazz.getId() != -1) { | ||
| 92 | out.println("[" + clazz.getIdString() + "]"); | ||
| 93 | } | ||
| 94 | out.println("</p>"); | ||
| 95 | |||
| 96 | if (referrersStat.size() != 0) { | ||
| 97 | out.println("<h3 align='center'>Referrers by Type</h3>"); | ||
| 98 | print(referrersStat); | ||
| 99 | } | ||
| 100 | |||
| 101 | if (refereesStat.size() != 0) { | ||
| 102 | out.println("<h3 align='center'>Referees by Type</h3>"); | ||
| 103 | print(refereesStat); | ||
| 104 | } | ||
| 105 | |||
| 106 | endHtml(); | ||
| 107 | } // clazz != null | ||
| 108 | } // run | ||
| 109 | |||
| 110 | private void print(final Map<JavaClass, Long> map) { | ||
| 111 | out.println("<table border='1' align='center'>"); | ||
| 112 | Set<JavaClass> keys = map.keySet(); | ||
| 113 | JavaClass[] classes = new JavaClass[keys.size()]; | ||
| 114 | keys.toArray(classes); | ||
| 115 | Arrays.sort(classes, new Comparator<JavaClass>() { | ||
| 116 | public int compare(JavaClass first, JavaClass second) { | ||
| 117 | Long count1 = map.get(first); | ||
| 118 | Long count2 = map.get(second); | ||
| 119 | return count2.compareTo(count1); | ||
| 120 | } | ||
| 121 | }); | ||
| 122 | |||
| 123 | out.println("<tr><th>Class</th><th>Count</th></tr>"); | ||
| 124 | for (int i = 0; i < classes.length; i++) { | ||
| 125 | JavaClass clazz = classes[i]; | ||
| 126 | out.println("<tr><td>"); | ||
| 127 | out.print("<a href='/refsByType/"); | ||
| 128 | out.print(clazz.getIdString()); | ||
| 129 | out.print("'>"); | ||
| 130 | out.print(clazz.getName()); | ||
| 131 | out.println("</a>"); | ||
| 132 | out.println("</td><td>"); | ||
| 133 | out.println(map.get(clazz)); | ||
| 134 | out.println("</td></tr>"); | ||
| 135 | } | ||
| 136 | out.println("</table>"); | ||
| 137 | } | ||
| 138 | } | ||