Mercurial > hg > truffle
annotate agent/src/share/classes/sun/jvm/hotspot/utilities/soql/JSJavaInstanceKlass.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 | c18cbe5936b8 |
| children | 6bd680e9ea35 |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
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2 * Copyright (c) 2003, 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.util.*; | |
| 28 import sun.jvm.hotspot.oops.*; | |
| 29 import sun.jvm.hotspot.utilities.*; | |
| 30 | |
| 31 /** | |
| 32 This is JavaScript wrapper for InstanceKlass. | |
| 33 */ | |
| 34 public class JSJavaInstanceKlass extends JSJavaKlass { | |
| 35 private static final int FIELD_SOURCE_FILE = 1; | |
| 36 private static final int FIELD_INTERFACES = 2; | |
| 37 private static final int FIELD_FIELDS = 3; | |
| 38 private static final int FIELD_METHODS = 4; | |
| 39 private static final int FIELD_IS_PRIVATE = 5; | |
| 40 private static final int FIELD_IS_PUBLIC = 6; | |
| 41 private static final int FIELD_IS_PROTECTED = 7; | |
| 42 private static final int FIELD_IS_PACKAGE_PRIVATE = 8; | |
| 43 private static final int FIELD_IS_STATIC = 9; | |
| 44 private static final int FIELD_IS_FINAL = 10; | |
| 45 private static final int FIELD_IS_ABSTRACT = 11; | |
| 46 private static final int FIELD_IS_STRICT = 12; | |
| 47 private static final int FIELD_IS_SYNTHETIC = 13; | |
| 48 private static final int FIELD_IS_INTERFACE = 14; | |
| 49 private static final int FIELD_CLASS_LOADER = 15; | |
| 50 private static final int FIELD_PROTECTION_DOMAIN = 16; | |
| 51 private static final int FIELD_SIGNERS = 17; | |
| 52 private static final int FIELD_STATICS = 18; | |
| 53 private static final int FIELD_UNDEFINED = -1; | |
| 54 | |
| 55 public JSJavaInstanceKlass(InstanceKlass kls, JSJavaFactory fac) { | |
| 56 super(kls, fac); | |
| 57 this.instanceFields = new HashMap(); | |
| 58 this.staticFields = new HashMap(); | |
| 59 } | |
| 60 | |
| 61 public final InstanceKlass getInstanceKlass() { | |
| 62 return (InstanceKlass) getKlass(); | |
| 63 } | |
| 64 | |
| 65 public Object getMetaClassFieldValue(String name) { | |
| 66 int fieldID = getFieldID(name); | |
| 67 InstanceKlass ik = getInstanceKlass(); | |
| 68 switch (fieldID) { | |
| 69 case FIELD_SOURCE_FILE: { | |
| 70 Symbol sourceFile = ik.getSourceFileName(); | |
| 71 return (sourceFile != null)? sourceFile.asString() : "<unknown>"; | |
| 72 } | |
| 73 case FIELD_INTERFACES: | |
| 74 return getInterfaces(); | |
| 75 case FIELD_FIELDS: | |
| 76 return factory.newJSList(ik.getImmediateFields()); | |
| 77 case FIELD_METHODS: | |
| 78 return factory.newJSList(ik.getImmediateMethods()); | |
| 79 case FIELD_IS_PRIVATE: | |
| 80 return Boolean.valueOf(getAccessFlags().isPrivate()); | |
| 81 case FIELD_IS_PUBLIC: | |
| 82 return Boolean.valueOf(getAccessFlags().isPublic()); | |
| 83 case FIELD_IS_PROTECTED: | |
| 84 return Boolean.valueOf(getAccessFlags().isProtected()); | |
| 85 case FIELD_IS_PACKAGE_PRIVATE: { | |
| 86 AccessFlags acc = getAccessFlags(); | |
| 87 return Boolean.valueOf(!acc.isPrivate() && !acc.isPublic() && !acc.isProtected()); | |
| 88 } | |
| 89 case FIELD_IS_STATIC: | |
| 90 return Boolean.valueOf(getAccessFlags().isStatic()); | |
| 91 case FIELD_IS_FINAL: | |
| 92 return Boolean.valueOf(getAccessFlags().isFinal()); | |
| 93 case FIELD_IS_ABSTRACT: | |
| 94 return Boolean.valueOf(getAccessFlags().isAbstract()); | |
| 95 case FIELD_IS_STRICT: | |
| 96 return Boolean.valueOf(getAccessFlags().isStrict()); | |
| 97 case FIELD_IS_SYNTHETIC: | |
| 98 return Boolean.valueOf(getAccessFlags().isSynthetic()); | |
| 99 case FIELD_IS_INTERFACE: | |
| 100 return Boolean.valueOf(ik.isInterface()); | |
| 101 case FIELD_CLASS_LOADER: | |
| 102 return factory.newJSJavaObject(ik.getClassLoader()); | |
| 103 case FIELD_PROTECTION_DOMAIN: | |
| 104 return factory.newJSJavaObject(ik.getProtectionDomain()); | |
| 105 case FIELD_SIGNERS: | |
| 106 return factory.newJSJavaObject(ik.getSigners()); | |
| 107 case FIELD_STATICS: | |
| 108 return getStatics(); | |
| 109 case FIELD_UNDEFINED: | |
| 110 default: | |
| 111 return super.getMetaClassFieldValue(name); | |
| 112 } | |
| 113 } | |
| 114 | |
| 115 public boolean hasMetaClassField(String name) { | |
| 116 if (getFieldID(name) != FIELD_UNDEFINED) { | |
| 117 return true; | |
| 118 } else { | |
| 119 return super.hasMetaClassField(name); | |
| 120 } | |
| 121 } | |
| 122 | |
| 123 public String getName() { | |
| 124 return getInstanceKlass().getName().asString().replace('/', '.'); | |
| 125 } | |
| 126 | |
| 127 public boolean isArray() { | |
| 128 return false; | |
| 129 } | |
| 130 | |
| 131 public String[] getMetaClassFieldNames() { | |
| 132 String[] superFields = super.getMetaClassFieldNames(); | |
| 133 Set k = fields.keySet(); | |
| 134 String[] res = new String[k.size() + superFields.length]; | |
| 135 System.arraycopy(superFields, 0, res, 0, superFields.length); | |
| 136 int i = superFields.length; | |
| 137 for (Iterator itr = k.iterator(); itr.hasNext();) { | |
| 138 res[i] = (String) itr.next(); | |
| 139 i++; | |
| 140 } | |
| 141 return res; | |
| 142 } | |
| 143 | |
| 144 public Object getInstanceFieldValue(String name, Instance instance) throws NoSuchFieldException { | |
| 145 Field fld = findInstanceField(name); | |
| 146 if (fld != null) { | |
| 147 return getFieldValue(fld, name, instance); | |
| 148 } else { | |
| 149 throw new NoSuchFieldException(name + " is not field of " | |
| 150 + getInstanceKlass().getName().asString().replace('/', '.')); | |
| 151 } | |
| 152 } | |
| 153 | |
| 154 public Object getStaticFieldValue(String name) throws NoSuchFieldException { | |
| 155 Field fld = findStaticField(name); | |
| 156 if (fld != null) { | |
| 157 return getFieldValue(fld, name, getInstanceKlass()); | |
| 158 } else { | |
| 159 throw new NoSuchFieldException(name + " is not field of " | |
| 160 + getInstanceKlass().getName().asString().replace('/', '.')); | |
| 161 } | |
| 162 } | |
| 163 | |
| 164 public String[] getInstanceFieldNames() { | |
| 165 if (instanceFieldNames == null) { | |
| 166 InstanceKlass current = getInstanceKlass(); | |
| 167 while (current != null) { | |
| 168 List tmp = current.getImmediateFields(); | |
| 169 for (Iterator itr = tmp.iterator(); itr.hasNext();) { | |
| 170 Field fld = (Field) itr.next(); | |
| 171 if (!fld.isStatic()) { | |
| 172 String name = fld.getID().getName(); | |
| 173 if (instanceFields.get(name) == null) { | |
| 174 instanceFields.put(name, fld); | |
| 175 } | |
| 176 } | |
| 177 } | |
| 178 current = (InstanceKlass) current.getSuper(); | |
| 179 } | |
| 180 | |
| 181 Set s = instanceFields.keySet(); | |
| 182 instanceFieldNames = new String[s.size()]; | |
| 183 int i = 0; | |
| 184 for (Iterator itr = s.iterator(); itr.hasNext(); i++) { | |
| 185 instanceFieldNames[i] = (String) itr.next(); | |
| 186 } | |
| 187 } | |
| 188 return instanceFieldNames; | |
| 189 } | |
| 190 | |
| 191 public boolean hasInstanceField(String name) { | |
| 192 Field fld = findInstanceField(name); | |
| 193 return (fld != null)? true: false; | |
| 194 } | |
| 195 | |
| 196 public String[] getStaticFieldNames() { | |
| 197 if (staticFieldNames == null) { | |
| 198 InstanceKlass current = getInstanceKlass(); | |
| 199 List tmp = current.getImmediateFields(); | |
| 200 for (Iterator itr = tmp.iterator(); itr.hasNext();) { | |
| 201 Field fld = (Field) itr.next(); | |
| 202 if (fld.isStatic()) { | |
| 203 staticFields.put(fld.getID().getName(), fld); | |
| 204 } | |
| 205 } | |
| 206 | |
| 207 Set s = staticFields.keySet(); | |
| 208 staticFieldNames = new String[s.size()]; | |
| 209 int i = 0; | |
| 210 for (Iterator itr = s.iterator(); itr.hasNext(); i++) { | |
| 211 staticFieldNames[i] = (String) itr.next(); | |
| 212 } | |
| 213 } | |
| 214 return staticFieldNames; | |
| 215 } | |
| 216 | |
| 217 public boolean hasStaticField(String name) { | |
| 218 Field fld = findStaticField(name); | |
| 219 return (fld != null)? true: false; | |
| 220 } | |
| 221 | |
| 222 //-- Intenals only below this point | |
| 223 private static Map fields = new HashMap(); | |
| 224 private static void addField(String name, int fieldId) { | |
| 225 fields.put(name, new Integer(fieldId)); | |
| 226 } | |
| 227 | |
| 228 private static int getFieldID(String name) { | |
| 229 Integer res = (Integer) fields.get(name); | |
| 230 return (res != null)? res.intValue() : FIELD_UNDEFINED; | |
| 231 } | |
| 232 | |
| 233 static { | |
| 234 addField("sourceFile", FIELD_SOURCE_FILE); | |
| 235 addField("interfaces", FIELD_INTERFACES); | |
| 236 addField("fields", FIELD_FIELDS); | |
| 237 addField("methods", FIELD_METHODS); | |
| 238 addField("isPrivate", FIELD_IS_PRIVATE); | |
| 239 addField("isPublic", FIELD_IS_PUBLIC); | |
| 240 addField("isProtected", FIELD_IS_PROTECTED); | |
| 241 addField("isPackagePrivate", FIELD_IS_PACKAGE_PRIVATE); | |
| 242 addField("isStatic", FIELD_IS_STATIC); | |
| 243 addField("isFinal", FIELD_IS_FINAL); | |
| 244 addField("isAbstract", FIELD_IS_ABSTRACT); | |
| 245 addField("isStrict", FIELD_IS_STRICT); | |
| 246 addField("isSynthetic", FIELD_IS_SYNTHETIC); | |
| 247 addField("isInterface", FIELD_IS_INTERFACE); | |
| 248 addField("classLoader", FIELD_CLASS_LOADER); | |
| 249 addField("protectionDomain", FIELD_PROTECTION_DOMAIN); | |
| 250 addField("signers", FIELD_SIGNERS); | |
| 251 addField("statics", FIELD_STATICS); | |
| 252 } | |
| 253 | |
| 254 private AccessFlags getAccessFlags() { | |
| 255 if (accFlags == null) { | |
| 256 accFlags = new AccessFlags(getInstanceKlass().computeModifierFlags()); | |
| 257 } | |
| 258 return accFlags; | |
| 259 } | |
| 260 | |
| 261 private Object getFieldValue(Field fld, String name, Oop oop) { | |
| 262 FieldType fd = fld.getFieldType(); | |
| 263 if (fd.isObject() || fd.isArray()) { | |
| 264 return factory.newJSJavaObject(((OopField)fld).getValue(oop)); | |
| 265 } else if (fd.isByte()) { | |
| 266 return new Byte(((ByteField)fld).getValue(oop)); | |
| 267 } else if (fd.isChar()) { | |
| 268 return new String(new char[] { ((CharField)fld).getValue(oop) }); | |
| 269 } else if (fd.isDouble()) { | |
| 270 return new Double(((DoubleField)fld).getValue(oop)); | |
| 271 } else if (fd.isFloat()) { | |
| 272 return new Float(((FloatField)fld).getValue(oop)); | |
| 273 } else if (fd.isInt()) { | |
| 274 return new Integer(((IntField)fld).getValue(oop)); | |
| 275 } else if (fd.isLong()) { | |
| 276 return new Long(((LongField)fld).getValue(oop)); | |
| 277 } else if (fd.isShort()) { | |
| 278 return new Short(((ShortField)fld).getValue(oop)); | |
| 279 } else if (fd.isBoolean()) { | |
| 280 return Boolean.valueOf(((BooleanField)fld).getValue(oop)); | |
| 281 } else { | |
| 282 if (Assert.ASSERTS_ENABLED) { | |
| 283 Assert.that(false, "invalid field type for " + name); | |
| 284 } | |
| 285 return null; | |
| 286 } | |
| 287 } | |
| 288 | |
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289 private Object getFieldValue(Field fld, String name, InstanceKlass oop) { |
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290 FieldType fd = fld.getFieldType(); |
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291 if (fd.isObject() || fd.isArray()) { |
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292 return factory.newJSJavaObject(((OopField)fld).getValue(oop)); |
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293 } else if (fd.isByte()) { |
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294 return new Byte(((ByteField)fld).getValue(oop)); |
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295 } else if (fd.isChar()) { |
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296 return new String(new char[] { ((CharField)fld).getValue(oop) }); |
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297 } else if (fd.isDouble()) { |
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298 return new Double(((DoubleField)fld).getValue(oop)); |
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299 } else if (fd.isFloat()) { |
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300 return new Float(((FloatField)fld).getValue(oop)); |
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301 } else if (fd.isInt()) { |
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302 return new Integer(((IntField)fld).getValue(oop)); |
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303 } else if (fd.isLong()) { |
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304 return new Long(((LongField)fld).getValue(oop)); |
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305 } else if (fd.isShort()) { |
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306 return new Short(((ShortField)fld).getValue(oop)); |
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307 } else if (fd.isBoolean()) { |
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308 return Boolean.valueOf(((BooleanField)fld).getValue(oop)); |
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309 } else { |
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310 if (Assert.ASSERTS_ENABLED) { |
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311 Assert.that(false, "invalid field type for " + name); |
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312 } |
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313 return null; |
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314 } |
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315 } |
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316 |
| 0 | 317 private Field findInstanceField(String name) { |
| 318 Field fld = (Field) instanceFields.get(name); | |
| 319 if (fld != null) { | |
| 320 return fld; | |
| 321 } else { | |
| 322 InstanceKlass current = getInstanceKlass(); | |
| 323 while (current != null) { | |
| 324 List tmp = current.getImmediateFields(); | |
| 325 for (Iterator itr = tmp.iterator(); itr.hasNext();) { | |
| 326 fld = (Field) itr.next(); | |
| 327 if (fld.getID().getName().equals(name) && !fld.isStatic()) { | |
| 328 instanceFields.put(name, fld); | |
| 329 return fld; | |
| 330 } | |
| 331 } | |
| 332 // lookup in super class. | |
| 333 current = (InstanceKlass) current.getSuper(); | |
| 334 } | |
| 335 } | |
| 336 // no match | |
| 337 return null; | |
| 338 } | |
| 339 | |
| 340 private Field findStaticField(String name) { | |
| 341 Field fld = (Field) staticFields.get(name); | |
| 342 if (fld != null) { | |
| 343 return fld; | |
| 344 } else { | |
| 345 // static fields are searched only in current. | |
| 346 // Direct/indirect super classes and interfaces | |
| 347 // are not included in search. | |
| 348 InstanceKlass current = getInstanceKlass(); | |
| 349 List tmp = current.getImmediateFields(); | |
| 350 for (Iterator itr = tmp.iterator(); itr.hasNext();) { | |
| 351 fld = (Field) itr.next(); | |
| 352 if (fld.getID().getName().equals(name) && fld.isStatic()) { | |
| 353 staticFields.put(name, fld); | |
| 354 return fld; | |
| 355 } | |
| 356 } | |
| 357 // no match | |
| 358 return null; | |
| 359 } | |
| 360 } | |
| 361 | |
| 362 private JSList getInterfaces() { | |
| 363 InstanceKlass ik = getInstanceKlass(); | |
| 364 List intfs = ik.getDirectImplementedInterfaces(); | |
| 365 List res = new ArrayList(0); | |
| 366 for (Iterator itr = intfs.iterator(); itr.hasNext();) { | |
| 367 Klass k = (Klass) itr.next(); | |
| 368 res.add(k.getJavaMirror()); | |
| 369 } | |
| 370 return factory.newJSList(res); | |
| 371 } | |
| 372 | |
| 373 private JSMap getStatics() { | |
| 374 String[] names = getStaticFieldNames(); | |
| 375 Map map = new HashMap(); | |
| 376 for (int i=0; i < names.length; i++) { | |
| 377 try { | |
| 378 map.put(names[i], getStaticFieldValue(names[i])); | |
| 379 } catch (NoSuchFieldException exp) {} | |
| 380 } | |
| 381 return factory.newJSMap(map); | |
| 382 } | |
| 383 | |
| 384 private Map instanceFields; | |
| 385 private Map staticFields; | |
| 386 private String[] instanceFieldNames; | |
| 387 private String[] staticFieldNames; | |
| 388 private AccessFlags accFlags; | |
| 389 } |