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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.model; | ||
| 34 | |||
| 35 | /** | ||
| 36 | * | ||
| 37 | * @author Bill Foote | ||
| 38 | */ | ||
| 39 | |||
| 40 | /** | ||
| 41 | * Represents the value of a static field of a JavaClass | ||
| 42 | */ | ||
| 43 | |||
| 44 | public class JavaStatic { | ||
| 45 | |||
| 46 | private JavaField field; | ||
| 47 | private JavaThing value; | ||
| 48 | |||
| 49 | public JavaStatic(JavaField field, JavaThing value) { | ||
| 50 | this.field = field; | ||
| 51 | this.value = value; | ||
| 52 | } | ||
| 53 | |||
| 54 | public void resolve(JavaClass clazz, Snapshot snapshot) { | ||
| 55 | long id = -1; | ||
| 56 | if (value instanceof JavaObjectRef) { | ||
| 57 | id = ((JavaObjectRef)value).getId(); | ||
| 58 | } | ||
| 59 | value = value.dereference(snapshot, field); | ||
| 60 | if (value.isHeapAllocated() && | ||
| 61 | clazz.getLoader() == snapshot.getNullThing()) { | ||
| 62 | // static fields are only roots if they are in classes | ||
| 63 | // loaded by the root classloader. | ||
| 64 | JavaHeapObject ho = (JavaHeapObject) value; | ||
| 65 | String s = "Static reference from " + clazz.getName() | ||
| 66 | + "." + field.getName(); | ||
| 67 | snapshot.addRoot(new Root(id, clazz.getId(), | ||
| 68 | Root.JAVA_STATIC, s)); | ||
| 69 | } | ||
| 70 | } | ||
| 71 | |||
| 72 | public JavaField getField() { | ||
| 73 | return field; | ||
| 74 | } | ||
| 75 | |||
| 76 | public JavaThing getValue() { | ||
| 77 | return value; | ||
| 78 | } | ||
| 79 | } | ||