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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 | +} | |