Showing the changes to java/pkg/com/sun/tools/hat/internal/model/JavaValueArray.java (1 of 18352 files). Show all
Unified · Split
| @@ -0,0 +1,433 @@ | |||
| 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 | import com.sun.tools.hat.internal.parser.ReadBuffer; | ||
| 36 | import java.io.IOException; | ||
| 37 | |||
| 38 | /** | ||
| 39 | * An array of values, that is, an array of ints, boolean, floats or the like. | ||
| 40 | * | ||
| 41 | * @author Bill Foote | ||
| 42 | */ | ||
| 43 | public class JavaValueArray extends JavaLazyReadObject | ||
| 44 | /*imports*/ implements ArrayTypeCodes { | ||
| 45 | |||
| 46 | private static String arrayTypeName(byte sig) { | ||
| 47 | switch (sig) { | ||
| 48 | case 'B': | ||
| 49 | return "byte[]"; | ||
| 50 | case 'Z': | ||
| 51 | return "boolean[]"; | ||
| 52 | case 'C': | ||
| 53 | return "char[]"; | ||
| 54 | case 'S': | ||
| 55 | return "short[]"; | ||
| 56 | case 'I': | ||
| 57 | return "int[]"; | ||
| 58 | case 'F': | ||
| 59 | return "float[]"; | ||
| 60 | case 'J': | ||
| 61 | return "long[]"; | ||
| 62 | case 'D': | ||
| 63 | return "double[]"; | ||
| 64 | default: | ||
| 65 | throw new RuntimeException("invalid array element sig: " + sig); | ||
| 66 | } | ||
| 67 | } | ||
| 68 | |||
| 69 | private static int elementSize(byte type) { | ||
| 70 | switch (type) { | ||
| 71 | case T_BYTE: | ||
| 72 | case T_BOOLEAN: | ||
| 73 | return 1; | ||
| 74 | case T_CHAR: | ||
| 75 | case T_SHORT: | ||
| 76 | return 2; | ||
| 77 | case T_INT: | ||
| 78 | case T_FLOAT: | ||
| 79 | return 4; | ||
| 80 | case T_LONG: | ||
| 81 | case T_DOUBLE: | ||
| 82 | return 8; | ||
| 83 | default: | ||
| 84 | throw new RuntimeException("invalid array element type: " + type); | ||
| 85 | } | ||
| 86 | } | ||
| 87 | |||
| 88 | /* | ||
| 89 | * Java primitive array record (HPROF_GC_PRIM_ARRAY_DUMP) looks | ||
| 90 | * as below: | ||
| 91 | * | ||
| 92 | * object ID | ||
| 93 | * stack trace serial number (int) | ||
| 94 | * length of the instance data (int) | ||
| 95 | * element type (byte) | ||
| 96 | * array data | ||
| 97 | */ | ||
| 98 | protected final int readValueLength() throws IOException { | ||
| 99 | JavaClass cl = getClazz(); | ||
| 100 | ReadBuffer buf = cl.getReadBuffer(); | ||
| 101 | int idSize = cl.getIdentifierSize(); | ||
| 102 | long offset = getOffset() + idSize + 4; | ||
| 103 | // length of the array | ||
| 104 | int len = buf.getInt(offset); | ||
| 105 | // typecode of array element type | ||
| 106 | byte type = buf.getByte(offset + 4); | ||
| 107 | return len * elementSize(type); | ||
| 108 | } | ||
| 109 | |||
| 110 | protected final byte[] readValue() throws IOException { | ||
| 111 | JavaClass cl = getClazz(); | ||
| 112 | ReadBuffer buf = cl.getReadBuffer(); | ||
| 113 | int idSize = cl.getIdentifierSize(); | ||
| 114 | long offset = getOffset() + idSize + 4; | ||
| 115 | // length of the array | ||
| 116 | int length = buf.getInt(offset); | ||
| 117 | // typecode of array element type | ||
| 118 | byte type = buf.getByte(offset + 4); | ||
| 119 | if (length == 0) { | ||
| 120 | return Snapshot.EMPTY_BYTE_ARRAY; | ||
| 121 | } else { | ||
| 122 | length *= elementSize(type); | ||
| 123 | byte[] res = new byte[length]; | ||
| 124 | buf.get(offset + 5, res); | ||
| 125 | return res; | ||
| 126 | } | ||
| 127 | } | ||
| 128 | |||
| 129 | // JavaClass set only after resolve. | ||
| 130 | private JavaClass clazz; | ||
| 131 | |||
| 132 | // This field contains elementSignature byte and | ||
| 133 | // divider to be used to calculate length. Note that | ||
| 134 | // length of content byte[] is not same as array length. | ||
| 135 | // Actual array length is (byte[].length / divider) | ||
| 136 | private int data; | ||
| 137 | |||
| 138 | // First 8 bits of data is used for element signature | ||
| 139 | private static final int SIGNATURE_MASK = 0x0FF; | ||
| 140 | |||
| 141 | // Next 8 bits of data is used for length divider | ||
| 142 | private static final int LENGTH_DIVIDER_MASK = 0x0FF00; | ||
| 143 | |||
| 144 | // Number of bits to shift to get length divider | ||
| 145 | private static final int LENGTH_DIVIDER_SHIFT = 8; | ||
| 146 | |||
| 147 | public JavaValueArray(byte elementSignature, long offset) { | ||
| 148 | super(offset); | ||
| 149 | this.data = (elementSignature & SIGNATURE_MASK); | ||
| 150 | } | ||
| 151 | |||
| 152 | public JavaClass getClazz() { | ||
| 153 | return clazz; | ||
| 154 | } | ||
| 155 | |||
| 156 | public void visitReferencedObjects(JavaHeapObjectVisitor v) { | ||
| 157 | super.visitReferencedObjects(v); | ||
| 158 | } | ||
| 159 | |||
| 160 | public void resolve(Snapshot snapshot) { | ||
| 161 | if (clazz instanceof JavaClass) { | ||
| 162 | return; | ||
| 163 | } | ||
| 164 | byte elementSig = getElementType(); | ||
| 165 | clazz = snapshot.findClass(arrayTypeName(elementSig)); | ||
| 166 | if (clazz == null) { | ||
| 167 | clazz = snapshot.getArrayClass("" + ((char) elementSig)); | ||
| 168 | } | ||
| 169 | getClazz().addInstance(this); | ||
| 170 | super.resolve(snapshot); | ||
| 171 | } | ||
| 172 | |||
| 173 | public int getLength() { | ||
| 174 | int divider = (data & LENGTH_DIVIDER_MASK) >>> LENGTH_DIVIDER_SHIFT; | ||
| 175 | if (divider == 0) { | ||
| 176 | byte elementSignature = getElementType(); | ||
| 177 | switch (elementSignature) { | ||
| 178 | case 'B': | ||
| 179 | case 'Z': | ||
| 180 | divider = 1; | ||
| 181 | break; | ||
| 182 | case 'C': | ||
| 183 | case 'S': | ||
| 184 | divider = 2; | ||
| 185 | break; | ||
| 186 | case 'I': | ||
| 187 | case 'F': | ||
| 188 | divider = 4; | ||
| 189 | break; | ||
| 190 | case 'J': | ||
| 191 | case 'D': | ||
| 192 | divider = 8; | ||
| 193 | break; | ||
| 194 | default: | ||
| 195 | throw new RuntimeException("unknown primitive type: " + | ||
| 196 | elementSignature); | ||
| 197 | } | ||
| 198 | data |= (divider << LENGTH_DIVIDER_SHIFT); | ||
| 199 | } | ||
| 200 | return (getValueLength() / divider); | ||
| 201 | } | ||
| 202 | |||
| 203 | public Object getElements() { | ||
| 204 | final int len = getLength(); | ||
| 205 | final byte et = getElementType(); | ||
| 206 | byte[] data = getValue(); | ||
| 207 | int index = 0; | ||
| 208 | switch (et) { | ||
| 209 | case 'Z': { | ||
| 210 | boolean[] res = new boolean[len]; | ||
| 211 | for (int i = 0; i < len; i++) { | ||
| 212 | res[i] = booleanAt(index, data); | ||
| 213 | index++; | ||
| 214 | } | ||
| 215 | return res; | ||
| 216 | } | ||
| 217 | case 'B': { | ||
| 218 | byte[] res = new byte[len]; | ||
| 219 | for (int i = 0; i < len; i++) { | ||
| 220 | res[i] = byteAt(index, data); | ||
| 221 | index++; | ||
| 222 | } | ||
| 223 | return res; | ||
| 224 | } | ||
| 225 | case 'C': { | ||
| 226 | char[] res = new char[len]; | ||
| 227 | for (int i = 0; i < len; i++) { | ||
| 228 | res[i] = charAt(index, data); | ||
| 229 | index += 2; | ||
| 230 | } | ||
| 231 | return res; | ||
| 232 | } | ||
| 233 | case 'S': { | ||
| 234 | short[] res = new short[len]; | ||
| 235 | for (int i = 0; i < len; i++) { | ||
| 236 | res[i] = shortAt(index, data); | ||
| 237 | index += 2; | ||
| 238 | } | ||
| 239 | return res; | ||
| 240 | } | ||
| 241 | case 'I': { | ||
| 242 | int[] res = new int[len]; | ||
| 243 | for (int i = 0; i < len; i++) { | ||
| 244 | res[i] = intAt(index, data); | ||
| 245 | index += 4; | ||
| 246 | } | ||
| 247 | return res; | ||
| 248 | } | ||
| 249 | case 'J': { | ||
| 250 | long[] res = new long[len]; | ||
| 251 | for (int i = 0; i < len; i++) { | ||
| 252 | res[i] = longAt(index, data); | ||
| 253 | index += 8; | ||
| 254 | } | ||
| 255 | return res; | ||
| 256 | } | ||
| 257 | case 'F': { | ||
| 258 | float[] res = new float[len]; | ||
| 259 | for (int i = 0; i < len; i++) { | ||
| 260 | res[i] = floatAt(index, data); | ||
| 261 | index += 4; | ||
| 262 | } | ||
| 263 | return res; | ||
| 264 | } | ||
| 265 | case 'D': { | ||
| 266 | double[] res = new double[len]; | ||
| 267 | for (int i = 0; i < len; i++) { | ||
| 268 | res[i] = doubleAt(index, data); | ||
| 269 | index += 8; | ||
| 270 | } | ||
| 271 | return res; | ||
| 272 | } | ||
| 273 | default: { | ||
| 274 | throw new RuntimeException("unknown primitive type?"); | ||
| 275 | } | ||
| 276 | } | ||
| 277 | } | ||
| 278 | |||
| 279 | public byte getElementType() { | ||
| 280 | return (byte) (data & SIGNATURE_MASK); | ||
| 281 | } | ||
| 282 | |||
| 283 | private void checkIndex(int index) { | ||
| 284 | if (index < 0 || index >= getLength()) { | ||
| 285 | throw new ArrayIndexOutOfBoundsException(index); | ||
| 286 | } | ||
| 287 | } | ||
| 288 | |||
| 289 | private void requireType(char type) { | ||
| 290 | if (getElementType() != type) { | ||
| 291 | throw new RuntimeException("not of type : " + type); | ||
| 292 | } | ||
| 293 | } | ||
| 294 | |||
| 295 | public boolean getBooleanAt(int index) { | ||
| 296 | checkIndex(index); | ||
| 297 | requireType('Z'); | ||
| 298 | return booleanAt(index, getValue()); | ||
| 299 | } | ||
| 300 | |||
| 301 | public byte getByteAt(int index) { | ||
| 302 | checkIndex(index); | ||
| 303 | requireType('B'); | ||
| 304 | return byteAt(index, getValue()); | ||
| 305 | } | ||
| 306 | |||
| 307 | public char getCharAt(int index) { | ||
| 308 | checkIndex(index); | ||
| 309 | requireType('C'); | ||
| 310 | return charAt(index << 1, getValue()); | ||
| 311 | } | ||
| 312 | |||
| 313 | public short getShortAt(int index) { | ||
| 314 | checkIndex(index); | ||
| 315 | requireType('S'); | ||
| 316 | return shortAt(index << 1, getValue()); | ||
| 317 | } | ||
| 318 | |||
| 319 | public int getIntAt(int index) { | ||
| 320 | checkIndex(index); | ||
| 321 | requireType('I'); | ||
| 322 | return intAt(index << 2, getValue()); | ||
| 323 | } | ||
| 324 | |||
| 325 | public long getLongAt(int index) { | ||
| 326 | checkIndex(index); | ||
| 327 | requireType('J'); | ||
| 328 | return longAt(index << 3, getValue()); | ||
| 329 | } | ||
| 330 | |||
| 331 | public float getFloatAt(int index) { | ||
| 332 | checkIndex(index); | ||
| 333 | requireType('F'); | ||
| 334 | return floatAt(index << 2, getValue()); | ||
| 335 | } | ||
| 336 | |||
| 337 | public double getDoubleAt(int index) { | ||
| 338 | checkIndex(index); | ||
| 339 | requireType('D'); | ||
| 340 | return doubleAt(index << 3, getValue()); | ||
| 341 | } | ||
| 342 | |||
| 343 | public String valueString() { | ||
| 344 | return valueString(true); | ||
| 345 | } | ||
| 346 | |||
| 347 | public String valueString(boolean bigLimit) { | ||
| 348 | // Char arrays deserve special treatment | ||
| 349 | StringBuffer result; | ||
| 350 | byte[] value = getValue(); | ||
| 351 | int max = value.length; | ||
| 352 | byte elementSignature = getElementType(); | ||
| 353 | if (elementSignature == 'C') { | ||
| 354 | result = new StringBuffer(); | ||
| 355 | for (int i = 0; i < value.length; ) { | ||
| 356 | char val = charAt(i, value); | ||
| 357 | result.append(val); | ||
| 358 | i += 2; | ||
| 359 | } | ||
| 360 | } else { | ||
| 361 | int limit = 8; | ||
| 362 | if (bigLimit) { | ||
| 363 | limit = 1000; | ||
| 364 | } | ||
| 365 | result = new StringBuffer("{"); | ||
| 366 | int num = 0; | ||
| 367 | for (int i = 0; i < value.length; ) { | ||
| 368 | if (num > 0) { | ||
| 369 | result.append(", "); | ||
| 370 | } | ||
| 371 | if (num >= limit) { | ||
| 372 | result.append("... "); | ||
| 373 | break; | ||
| 374 | } | ||
| 375 | num++; | ||
| 376 | switch (elementSignature) { | ||
| 377 | case 'Z': { | ||
| 378 | boolean val = booleanAt(i, value); | ||
| 379 | if (val) { | ||
| 380 | result.append("true"); | ||
| 381 | } else { | ||
| 382 | result.append("false"); | ||
| 383 | } | ||
| 384 | i++; | ||
| 385 | break; | ||
| 386 | } | ||
| 387 | case 'B': { | ||
| 388 | int val = 0xFF & byteAt(i, value); | ||
| 389 | result.append("0x" + Integer.toString(val, 16)); | ||
| 390 | i++; | ||
| 391 | break; | ||
| 392 | } | ||
| 393 | case 'S': { | ||
| 394 | short val = shortAt(i, value); | ||
| 395 | i += 2; | ||
| 396 | result.append("" + val); | ||
| 397 | break; | ||
| 398 | } | ||
| 399 | case 'I': { | ||
| 400 | int val = intAt(i, value); | ||
| 401 | i += 4; | ||
| 402 | result.append("" + val); | ||
| 403 | break; | ||
| 404 | } | ||
| 405 | case 'J': { // long | ||
| 406 | long val = longAt(i, value); | ||
| 407 | result.append("" + val); | ||
| 408 | i += 8; | ||
| 409 | break; | ||
| 410 | } | ||
| 411 | case 'F': { | ||
| 412 | float val = floatAt(i, value); | ||
| 413 | result.append("" + val); | ||
| 414 | i += 4; | ||
| 415 | break; | ||
| 416 | } | ||
| 417 | case 'D': { // double | ||
| 418 | double val = doubleAt(i, value); | ||
| 419 | result.append("" + val); | ||
| 420 | i += 8; | ||
| 421 | break; | ||
| 422 | } | ||
| 423 | default: { | ||
| 424 | throw new RuntimeException("unknown primitive type?"); | ||
| 425 | } | ||
| 426 | } | ||
| 427 | } | ||
| 428 | result.append("}"); | ||
| 429 | } | ||
| 430 | return result.toString(); | ||
| 431 | } | ||
| 432 | |||
| 433 | } | ||