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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 java.util.Enumeration; | ||
| 36 | |||
| 37 | import com.sun.tools.hat.internal.model.*; | ||
| 38 | import com.sun.tools.hat.internal.util.ArraySorter; | ||
| 39 | import com.sun.tools.hat.internal.util.Comparer; | ||
| 40 | |||
| 41 | /** | ||
| 42 | * | ||
| 43 | * @author Bill Foote | ||
| 44 | */ | ||
| 45 | |||
| 46 | |||
| 47 | class ObjectQuery extends ClassQuery { | ||
| 48 | // We inherit printFullClass from ClassQuery | ||
| 49 | |||
| 50 | public ObjectQuery() { | ||
| 51 | } | ||
| 52 | |||
| 53 | public void run() { | ||
| 54 | startHtml("Object at " + query); | ||
| 55 | long id = parseHex(query); | ||
| 56 | JavaHeapObject thing = snapshot.findThing(id); | ||
| 57 | // | ||
| 58 | // In the following, I suppose we really should use a visitor | ||
| 59 | // pattern. I'm not that strongly motivated to do this, however: | ||
| 60 | // This is the only typecase there is, and the default for an | ||
| 61 | // unrecognized type is to do something reasonable. | ||
| 62 | // | ||
| 63 | if (thing == null) { | ||
| 64 | error("object not found"); | ||
| 65 | } else if (thing instanceof JavaClass) { | ||
| 66 | printFullClass((JavaClass) thing); | ||
| 67 | } else if (thing instanceof JavaValueArray) { | ||
| 68 | print(((JavaValueArray) thing).valueString(true)); | ||
| 69 | printAllocationSite(thing); | ||
| 70 | printReferencesTo(thing); | ||
| 71 | } else if (thing instanceof JavaObjectArray) { | ||
| 72 | printFullObjectArray((JavaObjectArray) thing); | ||
| 73 | printAllocationSite(thing); | ||
| 74 | printReferencesTo(thing); | ||
| 75 | } else if (thing instanceof JavaObject) { | ||
| 76 | printFullObject((JavaObject) thing); | ||
| 77 | printAllocationSite(thing); | ||
| 78 | printReferencesTo(thing); | ||
| 79 | } else { | ||
| 80 | // We should never get here | ||
| 81 | print(thing.toString()); | ||
| 82 | printReferencesTo(thing); | ||
| 83 | } | ||
| 84 | endHtml(); | ||
| 85 | } | ||
| 86 | |||
| 87 | |||
| 88 | private void printFullObject(JavaObject obj) { | ||
| 89 | out.print("<h1>instance of "); | ||
| 90 | print(obj.toString()); | ||
| 91 | out.print(" <small>(" + obj.getSize() + " bytes)</small>"); | ||
| 92 | out.println("</h1>\n"); | ||
| 93 | |||
| 94 | out.println("<h2>Class:</h2>"); | ||
| 95 | printClass(obj.getClazz()); | ||
| 96 | |||
| 97 | out.println("<h2>Instance data members:</h2>"); | ||
| 98 | final JavaThing[] things = obj.getFields(); | ||
| 99 | final JavaField[] fields = obj.getClazz().getFieldsForInstance(); | ||
| 100 | Integer[] hack = new Integer[things.length]; | ||
| 101 | for (int i = 0; i < things.length; i++) { | ||
| 102 | hack[i] = new Integer(i); | ||
| 103 | } | ||
| 104 | ArraySorter.sort(hack, new Comparer() { | ||
| 105 | public int compare(Object lhs, Object rhs) { | ||
| 106 | JavaField left = fields[((Integer) lhs).intValue()]; | ||
| 107 | JavaField right = fields[((Integer) rhs).intValue()]; | ||
| 108 | return left.getName().compareTo(right.getName()); | ||
| 109 | } | ||
| 110 | }); | ||
| 111 | for (int i = 0; i < things.length; i++) { | ||
| 112 | int index = hack[i].intValue(); | ||
| 113 | printField(fields[index]); | ||
| 114 | out.print(" : "); | ||
| 115 | printThing(things[index]); | ||
| 116 | out.println("<br>"); | ||
| 117 | } | ||
| 118 | } | ||
| 119 | |||
| 120 | private void printFullObjectArray(JavaObjectArray arr) { | ||
| 121 | JavaThing[] elements = arr.getElements(); | ||
| 122 | out.println("<h1>Array of " + elements.length + " objects</h1>"); | ||
| 123 | |||
| 124 | out.println("<h2>Class:</h2>"); | ||
| 125 | printClass(arr.getClazz()); | ||
| 126 | |||
| 127 | out.println("<h2>Values</h2>"); | ||
| 128 | for (int i = 0; i < elements.length; i++) { | ||
| 129 | out.print("" + i + " : "); | ||
| 130 | printThing(elements[i]); | ||
| 131 | out.println("<br>"); | ||
| 132 | } | ||
| 133 | } | ||
| 134 | |||
| 135 | // | ||
| 136 | // Print the StackTrace where this was allocated | ||
| 137 | // | ||
| 138 | private void printAllocationSite(JavaHeapObject obj) { | ||
| 139 | StackTrace trace = obj.getAllocatedFrom(); | ||
| 140 | if (trace == null || trace.getFrames().length == 0) { | ||
| 141 | return; | ||
| 142 | } | ||
| 143 | out.println("<h2>Object allocated from:</h2>"); | ||
| 144 | printStackTrace(trace); | ||
| 145 | } | ||
| 146 | } | ||