Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaFactoryImpl.java @ 6725:da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
Summary: Remove PermGen, allocate meta-data in metaspace linked to class loaders, rewrite GC walking, rewrite and rename metadata to be C++ classes
Reviewed-by: jmasa, stefank, never, coleenp, kvn, brutisso, mgerdin, dholmes, jrose, twisti, roland
Contributed-by: jmasa <jon.masamitsu@oracle.com>, stefank <stefan.karlsson@oracle.com>, mgerdin <mikael.gerdin@oracle.com>, never <tom.rodriguez@oracle.com>
| author | coleenp |
|---|---|
| date | Sat, 01 Sep 2012 13:25:18 -0400 |
| parents | 63997f575155 |
| children |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 2004, 2012, Oracle and/or its affiliates. All rights reserved. |
| 0 | 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. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 package sun.jvm.hotspot.utilities.soql; | |
| 26 | |
| 27 import java.lang.ref.*; | |
| 28 import java.util.*; | |
| 29 import sun.jvm.hotspot.oops.*; | |
| 30 import sun.jvm.hotspot.runtime.*; | |
| 31 import sun.jvm.hotspot.utilities.*; | |
| 32 | |
| 33 public class JSJavaFactoryImpl implements JSJavaFactory { | |
| 34 public JSJavaObject newJSJavaObject(Oop oop) { | |
| 35 if (oop == null) return null; | |
| 36 SoftReference sref = (SoftReference) om.get(oop); | |
| 37 JSJavaObject res = (sref != null)? (JSJavaObject) sref.get() : null; | |
| 38 if (res == null) { | |
| 39 if (oop instanceof TypeArray) { | |
| 40 res = new JSJavaTypeArray((TypeArray)oop, this); | |
| 41 } else if (oop instanceof ObjArray) { | |
| 42 res = new JSJavaObjArray((ObjArray)oop, this); | |
| 43 } else if (oop instanceof Instance) { | |
| 44 res = newJavaInstance((Instance) oop); | |
| 45 } | |
| 46 } | |
| 47 if (res != null) { | |
| 48 om.put(oop, new SoftReference(res)); | |
| 49 } | |
| 50 return res; | |
| 51 } | |
| 52 | |
| 53 public JSJavaKlass newJSJavaKlass(Klass klass) { | |
| 54 JSJavaKlass res = null; | |
| 55 if (klass instanceof InstanceKlass) { | |
| 56 res = new JSJavaInstanceKlass((InstanceKlass) klass, this); | |
| 57 } else if (klass instanceof ObjArrayKlass) { | |
| 58 res = new JSJavaObjArrayKlass((ObjArrayKlass) klass, this); | |
| 59 } else if (klass instanceof TypeArrayKlass) { | |
| 60 res = new JSJavaTypeArrayKlass((TypeArrayKlass) klass, this); | |
| 61 } | |
| 62 if (res != null) { | |
| 63 om.put(klass, new SoftReference(res)); | |
| 64 } | |
| 65 return res; | |
| 66 } | |
| 67 | |
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68 public JSJavaMethod newJSJavaMethod(Method method) { |
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69 JSJavaMethod res = new JSJavaMethod(method, this); |
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70 if (res != null) { |
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71 om.put(method, new SoftReference(res)); |
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72 } |
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73 return res; |
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74 } |
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75 |
| 0 | 76 public JSJavaField newJSJavaField(Field field) { |
| 77 if (field == null) return null; | |
| 78 return new JSJavaField(field, this); | |
| 79 } | |
| 80 | |
| 81 public JSJavaThread newJSJavaThread(JavaThread jthread) { | |
| 82 if (jthread == null) return null; | |
| 83 return new JSJavaThread(jthread, this); | |
| 84 } | |
| 85 | |
| 86 public JSJavaFrame newJSJavaFrame(JavaVFrame jvf) { | |
| 87 if (jvf == null) return null; | |
| 88 return new JSJavaFrame(jvf, this); | |
| 89 } | |
| 90 | |
| 91 public JSList newJSList(List list) { | |
| 92 if (list == null) return null; | |
| 93 return new JSList(list, this); | |
| 94 } | |
| 95 | |
| 96 public JSMap newJSMap(Map map) { | |
| 97 if (map == null) return null; | |
| 98 return new JSMap(map, this); | |
| 99 } | |
| 100 | |
| 101 public Object newJSJavaWrapper(Object item) { | |
| 102 if (item == null) return null; | |
| 103 if (item instanceof Oop) { | |
| 104 return newJSJavaObject((Oop) item); | |
| 105 } else if (item instanceof Field) { | |
| 106 return newJSJavaField((Field) item); | |
| 107 } else if (item instanceof JavaThread) { | |
| 108 return newJSJavaThread((JavaThread) item); | |
| 109 } else if (item instanceof JavaVFrame) { | |
| 110 return newJSJavaFrame((JavaVFrame) item); | |
| 111 } else if (item instanceof List) { | |
| 112 return newJSList((List) item); | |
| 113 } else if (item instanceof Map) { | |
| 114 return newJSMap((Map) item); | |
| 115 } else { | |
| 116 // not-a-special-type, just return the input item | |
| 117 return item; | |
| 118 } | |
| 119 } | |
| 120 | |
| 121 public JSJavaHeap newJSJavaHeap() { | |
| 122 return new JSJavaHeap(this); | |
| 123 } | |
| 124 | |
| 125 public JSJavaVM newJSJavaVM() { | |
| 126 return new JSJavaVM(this); | |
| 127 } | |
| 128 | |
| 129 // -- Internals only below this point | |
| 130 private Symbol javaLangString() { | |
| 131 if (javaLangString == null) { | |
| 132 javaLangString = getSymbol("java/lang/String"); | |
| 133 } | |
| 134 return javaLangString; | |
| 135 } | |
| 136 | |
| 137 private Symbol javaLangThread() { | |
| 138 if (javaLangThread == null) { | |
| 139 javaLangThread = getSymbol("java/lang/Thread"); | |
| 140 } | |
| 141 return javaLangThread; | |
| 142 } | |
| 143 | |
| 144 private Symbol javaLangClass() { | |
| 145 if (javaLangClass == null) { | |
| 146 javaLangClass = getSymbol("java/lang/Class"); | |
| 147 } | |
| 148 return javaLangClass; | |
| 149 } | |
| 150 | |
| 151 private Symbol getSymbol(String str) { | |
| 152 return VM.getVM().getSymbolTable().probe(str); | |
| 153 } | |
| 154 | |
| 155 private JSJavaObject newJavaInstance(Instance instance) { | |
| 156 // look for well-known classes | |
| 157 Symbol className = instance.getKlass().getName(); | |
| 158 if (Assert.ASSERTS_ENABLED) { | |
| 159 Assert.that(className != null, "Null class name"); | |
| 160 } | |
| 161 JSJavaObject res = null; | |
| 162 if (className.equals(javaLangString())) { | |
| 163 res = new JSJavaString(instance, this); | |
| 164 } else if (className.equals(javaLangThread())) { | |
| 165 res = new JSJavaThread(instance, this); | |
| 166 } else if (className.equals(javaLangClass())) { | |
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7031614: jmap -permstat fails with java.lang.InternalError in sun.jvm.hotspot.oops.OopField.getValue
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167 Klass reflectedType = java_lang_Class.asKlass(instance); |
| 0 | 168 if (reflectedType != null) { |
| 169 JSJavaKlass jk = newJSJavaKlass(reflectedType); | |
| 170 // we don't support mirrors of VM internal Klasses | |
| 171 if (jk == null) return null; | |
| 172 res = new JSJavaClass(instance, jk, this); | |
| 173 } else { | |
| 174 // for primitive Classes, the reflected type is null | |
| 175 return null; | |
| 176 } | |
| 177 } else { | |
| 178 // not a well-known class. But the base class may be | |
| 179 // one of the known classes. | |
| 180 Klass kls = instance.getKlass().getSuper(); | |
| 181 while (kls != null) { | |
| 182 className = kls.getName(); | |
| 183 // java.lang.Class and java.lang.String are final classes | |
| 184 if (className.equals(javaLangThread())) { | |
| 185 res = new JSJavaThread(instance, this); | |
| 186 break; | |
| 187 } | |
| 188 kls = kls.getSuper(); | |
| 189 } | |
| 190 } | |
| 191 if (res == null) { | |
| 192 res = new JSJavaInstance(instance, this); | |
| 193 } | |
| 194 return res; | |
| 195 } | |
| 196 | |
| 197 // Map<Oop, SoftReference<JSJavaObject>> | |
| 198 private Map om = new HashMap(); | |
| 199 private Symbol javaLangString; | |
| 200 private Symbol javaLangThread; | |
| 201 private Symbol javaLangClass; | |
| 202 } |