| 1 | /* |
| 2 | * Copyright (C) Christian Schulte, 2012-235 |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * |
| 9 | * o Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * |
| 12 | * o Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in |
| 14 | * the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| 18 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY |
| 19 | * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| 20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | * |
| 28 | * $JOMC: JavaTypeName.java 4962 2014-09-06 23:58:48Z schulte $ |
| 29 | * |
| 30 | */ |
| 31 | package org.jomc.model; |
| 32 | |
| 33 | import java.io.Serializable; |
| 34 | import java.lang.ref.Reference; |
| 35 | import java.lang.ref.SoftReference; |
| 36 | import java.text.MessageFormat; |
| 37 | import java.text.ParseException; |
| 38 | import java.text.ParsePosition; |
| 39 | import java.util.ArrayList; |
| 40 | import java.util.Collections; |
| 41 | import java.util.HashMap; |
| 42 | import java.util.LinkedList; |
| 43 | import java.util.List; |
| 44 | import java.util.Locale; |
| 45 | import java.util.Map; |
| 46 | import java.util.ResourceBundle; |
| 47 | |
| 48 | /** |
| 49 | * Data type of a Java type name. |
| 50 | * <p> |
| 51 | * This class supports parsing of Java type names as specified in the |
| 52 | * Java Language Specification - Java SE 7 Edition - Chapters 3.8ff, 6.5 and 18. |
| 53 | * </p> |
| 54 | * <p> |
| 55 | * <i>Please note that this class will move to package {@code org.jomc.util} in JOMC 2.0.</i> |
| 56 | * </p> |
| 57 | * |
| 58 | * @author <a href="mailto:cs@schulte.it">Christian Schulte</a> |
| 59 | * @version $JOMC: JavaTypeName.java 4962 2014-09-06 23:58:48Z schulte $ |
| 60 | * @see #parse(java.lang.String) |
| 61 | * @see #valueOf(java.lang.String) |
| 62 | * @since 1.4 |
| 63 | */ |
| 64 | public final class JavaTypeName implements Serializable |
| 65 | { |
| 66 | |
| 67 | /** |
| 68 | * Data type of an argument of a parameterized Java type name. |
| 69 | * |
| 70 | * @author <a href="mailto:cs@schulte.it">Christian Schulte</a> |
| 71 | * @version $JOMC: JavaTypeName.java 4962 2014-09-06 23:58:48Z schulte $ |
| 72 | * @since 1.4 |
| 73 | */ |
| 74 | public static final class Argument implements Serializable |
| 75 | { |
| 76 | |
| 77 | /** |
| 78 | * Flag indicating the argument is a wildcard. |
| 79 | * @serial |
| 80 | */ |
| 81 | private boolean wildcard; |
| 82 | |
| 83 | /** |
| 84 | * The wildcard bounds of the argument. |
| 85 | * @serial |
| 86 | */ |
| 87 | private String wildcardBounds; |
| 88 | |
| 89 | /** |
| 90 | * The type name of the argument. |
| 91 | * @serial |
| 92 | */ |
| 93 | private JavaTypeName typeName; |
| 94 | |
| 95 | /** Cached string representation. */ |
| 96 | private transient String cachedString; |
| 97 | |
| 98 | /** Serial version UID for backwards compatibility with 1.4.x object streams. */ |
| 99 | private static final long serialVersionUID = -6515267147665760819L; |
| 100 | |
| 101 | /** Create a new {@code Argument} instance. */ |
| 102 | private Argument() |
| 103 | { |
| 104 | super(); |
| 105 | } |
| 106 | |
| 107 | /** |
| 108 | * Gets a flag indicating the argument is a wildcard argument. |
| 109 | * |
| 110 | * @return {@code true}, if the argument is a wildcard argument; {@code false}, else. |
| 111 | */ |
| 112 | public boolean isWildcard() |
| 113 | { |
| 114 | return this.wildcard; |
| 115 | } |
| 116 | |
| 117 | /** |
| 118 | * Gets the wildcard bounds of the argument. |
| 119 | * |
| 120 | * @return The wildcard bounds of the argument or {@code null}. |
| 121 | */ |
| 122 | public String getWildcardBounds() |
| 123 | { |
| 124 | return this.wildcardBounds; |
| 125 | } |
| 126 | |
| 127 | /** |
| 128 | * Gets the type name of the argument. |
| 129 | * |
| 130 | * @return The type name of the argument or {@code null}, if the argument is a wildcard argument. |
| 131 | */ |
| 132 | public JavaTypeName getTypeName() |
| 133 | { |
| 134 | return this.typeName; |
| 135 | } |
| 136 | |
| 137 | /** |
| 138 | * Creates a string representation of the instance. |
| 139 | * |
| 140 | * @return A string representation of the instance. |
| 141 | */ |
| 142 | @Override |
| 143 | public String toString() |
| 144 | { |
| 145 | if ( this.cachedString == null ) |
| 146 | { |
| 147 | final StringBuilder builder = new StringBuilder( 128 ); |
| 148 | |
| 149 | if ( this.isWildcard() ) |
| 150 | { |
| 151 | builder.append( "?" ); |
| 152 | |
| 153 | if ( this.getWildcardBounds() != null && this.getTypeName() != null ) |
| 154 | { |
| 155 | builder.append( " " ).append( this.getWildcardBounds() ).append( " " ). |
| 156 | append( this.getTypeName() ); |
| 157 | |
| 158 | } |
| 159 | } |
| 160 | else |
| 161 | { |
| 162 | builder.append( this.getTypeName() ); |
| 163 | } |
| 164 | |
| 165 | this.cachedString = builder.toString(); |
| 166 | } |
| 167 | |
| 168 | return this.cachedString; |
| 169 | } |
| 170 | |
| 171 | } |
| 172 | |
| 173 | /** |
| 174 | * Java type name of class {@code Boolean}. |
| 175 | * @see Boolean |
| 176 | */ |
| 177 | public static final JavaTypeName BOOLEAN; |
| 178 | |
| 179 | /** |
| 180 | * Java type name of basic type {@code boolean}. |
| 181 | * @see Boolean#TYPE |
| 182 | */ |
| 183 | public static final JavaTypeName BOOLEAN_TYPE; |
| 184 | |
| 185 | /** |
| 186 | * Java type name of class {@code Byte}. |
| 187 | * @see Byte |
| 188 | */ |
| 189 | public static final JavaTypeName BYTE; |
| 190 | |
| 191 | /** |
| 192 | * Java type name of basic type {@code byte}. |
| 193 | * @see Byte#TYPE |
| 194 | */ |
| 195 | public static final JavaTypeName BYTE_TYPE; |
| 196 | |
| 197 | /** |
| 198 | * Java type name of class {@code Character}. |
| 199 | * @see Character |
| 200 | */ |
| 201 | public static final JavaTypeName CHARACTER; |
| 202 | |
| 203 | /** |
| 204 | * Java type name of basic type {@code char}. |
| 205 | * @see Character#TYPE |
| 206 | */ |
| 207 | public static final JavaTypeName CHARACTER_TYPE; |
| 208 | |
| 209 | /** |
| 210 | * Java type name of class {@code Double}. |
| 211 | * @see Double |
| 212 | */ |
| 213 | public static final JavaTypeName DOUBLE; |
| 214 | |
| 215 | /** |
| 216 | * Java type name of basic type {@code double}. |
| 217 | * @see Double#TYPE |
| 218 | */ |
| 219 | public static final JavaTypeName DOUBLE_TYPE; |
| 220 | |
| 221 | /** |
| 222 | * Java type name of class {@code Float}. |
| 223 | * @see Float |
| 224 | */ |
| 225 | public static final JavaTypeName FLOAT; |
| 226 | |
| 227 | /** |
| 228 | * Java type name of basic type {@code float}. |
| 229 | * @see Float#TYPE |
| 230 | */ |
| 231 | public static final JavaTypeName FLOAT_TYPE; |
| 232 | |
| 233 | /** |
| 234 | * Java type name of class {@code Integer}. |
| 235 | * @see Integer |
| 236 | */ |
| 237 | public static final JavaTypeName INTEGER; |
| 238 | |
| 239 | /** |
| 240 | * Java type name of basic type {@code int}. |
| 241 | * @see Integer#TYPE |
| 242 | */ |
| 243 | public static final JavaTypeName INTEGER_TYPE; |
| 244 | |
| 245 | /** |
| 246 | * Java type name of class {@code Long}. |
| 247 | * @see Long |
| 248 | */ |
| 249 | public static final JavaTypeName LONG; |
| 250 | |
| 251 | /** |
| 252 | * Java type name of basic type {@code long}. |
| 253 | * @see Long#TYPE |
| 254 | */ |
| 255 | public static final JavaTypeName LONG_TYPE; |
| 256 | |
| 257 | /** |
| 258 | * Java type name of class {@code Short}. |
| 259 | * @see Short |
| 260 | */ |
| 261 | public static final JavaTypeName SHORT; |
| 262 | |
| 263 | /** |
| 264 | * Java type name of basic type {@code short}. |
| 265 | * @see Short#TYPE |
| 266 | */ |
| 267 | public static final JavaTypeName SHORT_TYPE; |
| 268 | |
| 269 | /** |
| 270 | * The array dimension of the type name. |
| 271 | * @serial |
| 272 | */ |
| 273 | private int dimension; |
| 274 | |
| 275 | /** |
| 276 | * The flag indicating the type name denotes a primitive type. |
| 277 | * @serial |
| 278 | */ |
| 279 | private boolean primitive; |
| 280 | |
| 281 | /** |
| 282 | * The class name of the type name. |
| 283 | * @serial |
| 284 | */ |
| 285 | private String className; |
| 286 | |
| 287 | /** |
| 288 | * The qualified package name of the type name. |
| 289 | * @serial |
| 290 | */ |
| 291 | private String packageName; |
| 292 | |
| 293 | /** |
| 294 | * The qualified name of the type name. |
| 295 | * @serial |
| 296 | */ |
| 297 | private String qualifiedName; |
| 298 | |
| 299 | /** |
| 300 | * The simple name of the type name. |
| 301 | * @serial |
| 302 | */ |
| 303 | private String simpleName; |
| 304 | |
| 305 | /** |
| 306 | * The arguments of the type name. |
| 307 | * @serial |
| 308 | */ |
| 309 | private volatile List<Argument> arguments; |
| 310 | |
| 311 | /** Cached string representation. */ |
| 312 | private transient String cachedString; |
| 313 | |
| 314 | /** Cached instances. */ |
| 315 | private static volatile Reference<Map<String, JavaTypeName>> cache; |
| 316 | |
| 317 | /** Mappings of basic type name to class name encoding. */ |
| 318 | private static final Map<String, String> CLASSNAME_ENCODINGS = new HashMap<String, String>( 8 ); |
| 319 | |
| 320 | /** Serial version UID for backwards compatibility with 1.4.x object streams. */ |
| 321 | private static final long serialVersionUID = -4258949347035910249L; |
| 322 | |
| 323 | static |
| 324 | { |
| 325 | CLASSNAME_ENCODINGS.put( "boolean", "Z" ); |
| 326 | CLASSNAME_ENCODINGS.put( "byte", "B" ); |
| 327 | CLASSNAME_ENCODINGS.put( "char", "C" ); |
| 328 | CLASSNAME_ENCODINGS.put( "double", "D" ); |
| 329 | CLASSNAME_ENCODINGS.put( "float", "F" ); |
| 330 | CLASSNAME_ENCODINGS.put( "int", "I" ); |
| 331 | CLASSNAME_ENCODINGS.put( "long", "J" ); |
| 332 | CLASSNAME_ENCODINGS.put( "short", "S" ); |
| 333 | |
| 334 | BOOLEAN = JavaTypeName.valueOf( Boolean.class.getName() ); |
| 335 | BOOLEAN_TYPE = JavaTypeName.valueOf( Boolean.TYPE.getName() ); |
| 336 | BYTE = JavaTypeName.valueOf( Byte.class.getName() ); |
| 337 | BYTE_TYPE = JavaTypeName.valueOf( Byte.TYPE.getName() ); |
| 338 | CHARACTER = JavaTypeName.valueOf( Character.class.getName() ); |
| 339 | CHARACTER_TYPE = JavaTypeName.valueOf( Character.TYPE.getName() ); |
| 340 | DOUBLE = JavaTypeName.valueOf( Double.class.getName() ); |
| 341 | DOUBLE_TYPE = JavaTypeName.valueOf( Double.TYPE.getName() ); |
| 342 | FLOAT = JavaTypeName.valueOf( Float.class.getName() ); |
| 343 | FLOAT_TYPE = JavaTypeName.valueOf( Float.TYPE.getName() ); |
| 344 | INTEGER = JavaTypeName.valueOf( Integer.class.getName() ); |
| 345 | INTEGER_TYPE = JavaTypeName.valueOf( Integer.TYPE.getName() ); |
| 346 | LONG = JavaTypeName.valueOf( Long.class.getName() ); |
| 347 | LONG_TYPE = JavaTypeName.valueOf( Long.TYPE.getName() ); |
| 348 | SHORT = JavaTypeName.valueOf( Short.class.getName() ); |
| 349 | SHORT_TYPE = JavaTypeName.valueOf( Short.TYPE.getName() ); |
| 350 | } |
| 351 | |
| 352 | /** Creates a new {@code JavaTypeName} instance. */ |
| 353 | private JavaTypeName() |
| 354 | { |
| 355 | super(); |
| 356 | } |
| 357 | |
| 358 | /** |
| 359 | * Gets the {@code Class} object of the type using a given class loader. |
| 360 | * |
| 361 | * @param classLoader The class loader to use for loading the {@code Class} object to return or {@code null}, to |
| 362 | * load that {@code Class} object using the platform's bootstrap class loader. |
| 363 | * @param initialize Flag indicating initialization to be performed on the loaded {@code Class} object. |
| 364 | * |
| 365 | * @return The {@code Class} object of the type. |
| 366 | * |
| 367 | * @throws ClassNotFoundException if the {@code Class} object of the type is not found searching |
| 368 | * {@code classLoader}. |
| 369 | * |
| 370 | * @see Class#forName(java.lang.String, boolean, java.lang.ClassLoader) |
| 371 | */ |
| 372 | public Class<?> getClass( final ClassLoader classLoader, final boolean initialize ) throws ClassNotFoundException |
| 373 | { |
| 374 | Class<?> javaClass = null; |
| 375 | |
| 376 | if ( this.isArray() ) |
| 377 | { |
| 378 | javaClass = Class.forName( this.getClassName(), initialize, classLoader ); |
| 379 | } |
| 380 | else if ( this.isPrimitive() ) |
| 381 | { |
| 382 | if ( BOOLEAN_TYPE.equals( this ) ) |
| 383 | { |
| 384 | javaClass = Boolean.TYPE; |
| 385 | } |
| 386 | else if ( BYTE_TYPE.equals( this ) ) |
| 387 | { |
| 388 | javaClass = Byte.TYPE; |
| 389 | } |
| 390 | else if ( CHARACTER_TYPE.equals( this ) ) |
| 391 | { |
| 392 | javaClass = Character.TYPE; |
| 393 | } |
| 394 | else if ( DOUBLE_TYPE.equals( this ) ) |
| 395 | { |
| 396 | javaClass = Double.TYPE; |
| 397 | } |
| 398 | else if ( FLOAT_TYPE.equals( this ) ) |
| 399 | { |
| 400 | javaClass = Float.TYPE; |
| 401 | } |
| 402 | else if ( INTEGER_TYPE.equals( this ) ) |
| 403 | { |
| 404 | javaClass = Integer.TYPE; |
| 405 | } |
| 406 | else if ( LONG_TYPE.equals( this ) ) |
| 407 | { |
| 408 | javaClass = Long.TYPE; |
| 409 | } |
| 410 | else if ( SHORT_TYPE.equals( this ) ) |
| 411 | { |
| 412 | javaClass = Short.TYPE; |
| 413 | } |
| 414 | else |
| 415 | { |
| 416 | throw new AssertionError( this ); |
| 417 | } |
| 418 | } |
| 419 | else |
| 420 | { |
| 421 | javaClass = Class.forName( this.getClassName(), initialize, classLoader ); |
| 422 | } |
| 423 | |
| 424 | return javaClass; |
| 425 | } |
| 426 | |
| 427 | /** |
| 428 | * Gets the arguments of the type name. |
| 429 | * |
| 430 | * @return An unmodifiable list holding the arguments of the type name. |
| 431 | */ |
| 432 | public List<Argument> getArguments() |
| 433 | { |
| 434 | if ( this.arguments == null ) |
| 435 | { |
| 436 | this.arguments = new ArrayList<Argument>(); |
| 437 | } |
| 438 | |
| 439 | return this.arguments; |
| 440 | } |
| 441 | |
| 442 | /** |
| 443 | * Gets a flag indicating the type name denotes an array type. |
| 444 | * |
| 445 | * @return {@code true}, if the type name denotes an array type; {@code false}, else. |
| 446 | * |
| 447 | * @see Class#isArray() |
| 448 | */ |
| 449 | public boolean isArray() |
| 450 | { |
| 451 | return this.dimension > 0; |
| 452 | } |
| 453 | |
| 454 | /** |
| 455 | * Gets a flag indicating the type name denotes a primitive type. |
| 456 | * |
| 457 | * @return {@code true}, if the type name denotes a primitive type; {@code false}, else. |
| 458 | * |
| 459 | * @see Class#isPrimitive() |
| 460 | */ |
| 461 | public boolean isPrimitive() |
| 462 | { |
| 463 | return this.primitive; |
| 464 | } |
| 465 | |
| 466 | /** |
| 467 | * Gets a flag indicating the type name denotes a wrapper type of a primitive type. |
| 468 | * |
| 469 | * @return {@code true}, if the type name denotes a wrapper type of a primitive type; {@code false}, else. |
| 470 | */ |
| 471 | public boolean isUnboxable() |
| 472 | { |
| 473 | // The Java Language Specification - Java SE 7 Edition - 5.1.8. Unboxing Conversion |
| 474 | return BOOLEAN.equals( this ) |
| 475 | || BYTE.equals( this ) |
| 476 | || SHORT.equals( this ) |
| 477 | || CHARACTER.equals( this ) |
| 478 | || INTEGER.equals( this ) |
| 479 | || LONG.equals( this ) |
| 480 | || FLOAT.equals( this ) |
| 481 | || DOUBLE.equals( this ); |
| 482 | |
| 483 | } |
| 484 | |
| 485 | /** |
| 486 | * Gets the type name. |
| 487 | * |
| 488 | * @param qualified {@code true}, to return a qualified name; {@code false}, to return a simple name. |
| 489 | * |
| 490 | * @return The type name. |
| 491 | */ |
| 492 | public String getName( final boolean qualified ) |
| 493 | { |
| 494 | return qualified |
| 495 | ? this.toString() |
| 496 | : this.getPackageName().length() > 0 |
| 497 | ? this.toString().substring( this.getPackageName().length() + 1 ) |
| 498 | : this.toString(); |
| 499 | |
| 500 | } |
| 501 | |
| 502 | /** |
| 503 | * Gets the class name of the type name. |
| 504 | * |
| 505 | * @return The class name of the type name. |
| 506 | * |
| 507 | * @see Class#getName() |
| 508 | * @see Class#forName(java.lang.String) |
| 509 | */ |
| 510 | public String getClassName() |
| 511 | { |
| 512 | return this.className; |
| 513 | } |
| 514 | |
| 515 | /** |
| 516 | * Gets the fully qualified package name of the type name. |
| 517 | * |
| 518 | * @return The fully qualified package name of the type name or an empty string, if the type name denotes a type |
| 519 | * located in an unnamed package. |
| 520 | * |
| 521 | * @see #isUnnamedPackage() |
| 522 | */ |
| 523 | public String getPackageName() |
| 524 | { |
| 525 | return this.packageName; |
| 526 | } |
| 527 | |
| 528 | /** |
| 529 | * Gets a flag indicating the type name denotes a type located in an unnamed package. |
| 530 | * |
| 531 | * @return {@code true}, if the type name denotes a type located in an unnamed package; {@code false}, else. |
| 532 | * |
| 533 | * @see #getPackageName() |
| 534 | */ |
| 535 | public boolean isUnnamedPackage() |
| 536 | { |
| 537 | return this.getPackageName().length() == 0; |
| 538 | } |
| 539 | |
| 540 | /** |
| 541 | * Gets the fully qualified name of the type name. |
| 542 | * |
| 543 | * @return The fully qualified name of the type name. |
| 544 | */ |
| 545 | public String getQualifiedName() |
| 546 | { |
| 547 | return this.qualifiedName; |
| 548 | } |
| 549 | |
| 550 | /** |
| 551 | * Gets the simple name of the type name. |
| 552 | * |
| 553 | * @return The simple name of the type name. |
| 554 | */ |
| 555 | public String getSimpleName() |
| 556 | { |
| 557 | return this.simpleName; |
| 558 | } |
| 559 | |
| 560 | /** |
| 561 | * Gets the type name applying a boxing conversion. |
| 562 | * |
| 563 | * @return The converted type name or {@code null}, if the instance cannot be converted. |
| 564 | * |
| 565 | * @see #isArray() |
| 566 | * @see #isPrimitive() |
| 567 | */ |
| 568 | public JavaTypeName getBoxedName() |
| 569 | { |
| 570 | JavaTypeName boxedName = null; |
| 571 | |
| 572 | // The Java Language Specification - Java SE 7 Edition - 5.1.7. Boxing Conversion |
| 573 | if ( BOOLEAN_TYPE.equals( this ) ) |
| 574 | { |
| 575 | boxedName = BOOLEAN; |
| 576 | } |
| 577 | else if ( BYTE_TYPE.equals( this ) ) |
| 578 | { |
| 579 | boxedName = BYTE; |
| 580 | } |
| 581 | else if ( SHORT_TYPE.equals( this ) ) |
| 582 | { |
| 583 | boxedName = SHORT; |
| 584 | } |
| 585 | else if ( CHARACTER_TYPE.equals( this ) ) |
| 586 | { |
| 587 | boxedName = CHARACTER; |
| 588 | } |
| 589 | else if ( INTEGER_TYPE.equals( this ) ) |
| 590 | { |
| 591 | boxedName = INTEGER; |
| 592 | } |
| 593 | else if ( LONG_TYPE.equals( this ) ) |
| 594 | { |
| 595 | boxedName = LONG; |
| 596 | } |
| 597 | else if ( FLOAT_TYPE.equals( this ) ) |
| 598 | { |
| 599 | boxedName = FLOAT; |
| 600 | } |
| 601 | else if ( DOUBLE_TYPE.equals( this ) ) |
| 602 | { |
| 603 | boxedName = DOUBLE; |
| 604 | } |
| 605 | |
| 606 | return boxedName; |
| 607 | } |
| 608 | |
| 609 | /** |
| 610 | * Gets the type name applying an unboxing conversion. |
| 611 | * |
| 612 | * @return The converted type name or {@code null}, if the instance cannot be converted. |
| 613 | * |
| 614 | * @see #isUnboxable() |
| 615 | */ |
| 616 | public JavaTypeName getUnboxedName() |
| 617 | { |
| 618 | JavaTypeName unboxedName = null; |
| 619 | |
| 620 | // The Java Language Specification - Java SE 7 Edition - 5.1.8. Unboxing Conversion |
| 621 | if ( BOOLEAN.equals( this ) ) |
| 622 | { |
| 623 | unboxedName = BOOLEAN_TYPE; |
| 624 | } |
| 625 | else if ( BYTE.equals( this ) ) |
| 626 | { |
| 627 | unboxedName = BYTE_TYPE; |
| 628 | } |
| 629 | else if ( SHORT.equals( this ) ) |
| 630 | { |
| 631 | unboxedName = SHORT_TYPE; |
| 632 | } |
| 633 | else if ( CHARACTER.equals( this ) ) |
| 634 | { |
| 635 | unboxedName = CHARACTER_TYPE; |
| 636 | } |
| 637 | else if ( INTEGER.equals( this ) ) |
| 638 | { |
| 639 | unboxedName = INTEGER_TYPE; |
| 640 | } |
| 641 | else if ( LONG.equals( this ) ) |
| 642 | { |
| 643 | unboxedName = LONG_TYPE; |
| 644 | } |
| 645 | else if ( FLOAT.equals( this ) ) |
| 646 | { |
| 647 | unboxedName = FLOAT_TYPE; |
| 648 | } |
| 649 | else if ( DOUBLE.equals( this ) ) |
| 650 | { |
| 651 | unboxedName = DOUBLE_TYPE; |
| 652 | } |
| 653 | |
| 654 | return unboxedName; |
| 655 | } |
| 656 | |
| 657 | /** |
| 658 | * Creates a string representation of the instance. |
| 659 | * |
| 660 | * @return A string representation of the instance. |
| 661 | */ |
| 662 | @Override |
| 663 | public String toString() |
| 664 | { |
| 665 | if ( this.cachedString == null ) |
| 666 | { |
| 667 | final StringBuilder builder = new StringBuilder( this.getQualifiedName() ); |
| 668 | |
| 669 | if ( !this.getArguments().isEmpty() ) |
| 670 | { |
| 671 | builder.append( "<" ); |
| 672 | |
| 673 | for ( int i = 0, s0 = this.getArguments().size(); i < s0; i++ ) |
| 674 | { |
| 675 | builder.append( this.getArguments().get( i ) ).append( ", " ); |
| 676 | } |
| 677 | |
| 678 | builder.setLength( builder.length() - 2 ); |
| 679 | builder.append( ">" ); |
| 680 | } |
| 681 | |
| 682 | if ( this.isArray() ) |
| 683 | { |
| 684 | final int idx = this.getQualifiedName().length() - this.dimension * "[]".length(); |
| 685 | builder.append( builder.substring( idx, this.getQualifiedName().length() ) ); |
| 686 | builder.delete( idx, this.getQualifiedName().length() ); |
| 687 | } |
| 688 | |
| 689 | this.cachedString = builder.toString(); |
| 690 | } |
| 691 | |
| 692 | return this.cachedString; |
| 693 | } |
| 694 | |
| 695 | /** |
| 696 | * Gets the hash code value of the object. |
| 697 | * |
| 698 | * @return The hash code value of the object. |
| 699 | */ |
| 700 | @Override |
| 701 | public int hashCode() |
| 702 | { |
| 703 | return this.toString().hashCode(); |
| 704 | } |
| 705 | |
| 706 | /** |
| 707 | * Tests whether another object is compile-time equal to this object. |
| 708 | * |
| 709 | * @param o The object to compare. |
| 710 | * |
| 711 | * @return {@code true}, if {@code o} denotes the same compile-time type name than the object; {@code false}, else. |
| 712 | */ |
| 713 | @Override |
| 714 | public boolean equals( final Object o ) |
| 715 | { |
| 716 | boolean equal = o == this; |
| 717 | |
| 718 | if ( !equal && o instanceof JavaTypeName ) |
| 719 | { |
| 720 | equal = this.toString().equals( o.toString() ); |
| 721 | } |
| 722 | |
| 723 | return equal; |
| 724 | } |
| 725 | |
| 726 | /** |
| 727 | * Tests whether another object is runtime equal to this object. |
| 728 | * |
| 729 | * @param o The object to compare. |
| 730 | * |
| 731 | * @return {@code true}, if {@code o} denotes the same runtime type name than the object; {@code false}, else. |
| 732 | */ |
| 733 | public boolean runtimeEquals( final Object o ) |
| 734 | { |
| 735 | boolean equal = o == this; |
| 736 | |
| 737 | if ( !equal && o instanceof JavaTypeName ) |
| 738 | { |
| 739 | final JavaTypeName that = (JavaTypeName) o; |
| 740 | equal = this.getClassName().equals( that.getClassName() ); |
| 741 | } |
| 742 | |
| 743 | return equal; |
| 744 | } |
| 745 | |
| 746 | /** |
| 747 | * Parses text from the beginning of the given string to produce a {@code JavaTypeName} instance. |
| 748 | * |
| 749 | * @param text The text to parse. |
| 750 | * |
| 751 | * @return A {@code JavaTypeName} instance corresponding to {@code text}. |
| 752 | * |
| 753 | * @throws NullPointerException if {@code text} is {@code null}. |
| 754 | * @throws ParseException if parsing fails. |
| 755 | * |
| 756 | * @see #valueOf(java.lang.String) |
| 757 | */ |
| 758 | public static JavaTypeName parse( final String text ) throws ParseException |
| 759 | { |
| 760 | if ( text == null ) |
| 761 | { |
| 762 | throw new NullPointerException( "text" ); |
| 763 | } |
| 764 | |
| 765 | return parse( text, false ); |
| 766 | } |
| 767 | |
| 768 | /** |
| 769 | * Parses text from the beginning of the given string to produce a {@code JavaTypeName} instance. |
| 770 | * <p> |
| 771 | * Unlike the {@link #parse(String)} method, this method throws an {@code IllegalArgumentException} if parsing |
| 772 | * fails. |
| 773 | * </p> |
| 774 | * |
| 775 | * @param text The text to parse. |
| 776 | * |
| 777 | * @return A {@code JavaTypeName} instance corresponding to {@code text}. |
| 778 | * |
| 779 | * @throws NullPointerException if {@code text} is {@code null}. |
| 780 | * @throws IllegalArgumentException if parsing fails. |
| 781 | * |
| 782 | * @see #parse(java.lang.String) |
| 783 | */ |
| 784 | public static JavaTypeName valueOf( final String text ) throws IllegalArgumentException |
| 785 | { |
| 786 | if ( text == null ) |
| 787 | { |
| 788 | throw new NullPointerException( "text" ); |
| 789 | } |
| 790 | |
| 791 | try |
| 792 | { |
| 793 | return parse( text, true ); |
| 794 | } |
| 795 | catch ( final ParseException e ) |
| 796 | { |
| 797 | throw new AssertionError( e ); |
| 798 | } |
| 799 | } |
| 800 | |
| 801 | private static JavaTypeName parse( final String text, boolean runtimeException ) throws ParseException |
| 802 | { |
| 803 | Map<String, JavaTypeName> map = cache == null ? null : cache.get(); |
| 804 | |
| 805 | if ( map == null ) |
| 806 | { |
| 807 | map = new HashMap<String, JavaTypeName>( 128 ); |
| 808 | cache = new SoftReference<Map<String, JavaTypeName>>( map ); |
| 809 | } |
| 810 | |
| 811 | synchronized ( map ) |
| 812 | { |
| 813 | JavaTypeName javaType = map.get( text ); |
| 814 | |
| 815 | if ( javaType == null ) |
| 816 | { |
| 817 | javaType = new JavaTypeName(); |
| 818 | parseType( javaType, text, runtimeException ); |
| 819 | |
| 820 | javaType.arguments = javaType.arguments != null |
| 821 | ? Collections.unmodifiableList( javaType.arguments ) |
| 822 | : Collections.<Argument>emptyList(); |
| 823 | |
| 824 | final String name = javaType.getName( true ); |
| 825 | final JavaTypeName existingInstance = map.get( name ); |
| 826 | |
| 827 | if ( existingInstance != null ) |
| 828 | { |
| 829 | map.put( text, existingInstance ); |
| 830 | javaType = existingInstance; |
| 831 | } |
| 832 | else |
| 833 | { |
| 834 | map.put( text, javaType ); |
| 835 | map.put( name, javaType ); |
| 836 | } |
| 837 | } |
| 838 | |
| 839 | return javaType; |
| 840 | } |
| 841 | } |
| 842 | |
| 843 | /** |
| 844 | * JLS - Java SE 7 Edition - Chapter 18. Syntax |
| 845 | * <pre> |
| 846 | * Type: |
| 847 | * BasicType {[]} |
| 848 | * ReferenceType {[]} |
| 849 | * </pre> |
| 850 | * |
| 851 | * @see #parseReferenceType(org.jomc.model.JavaTypeName.Tokenizer, org.jomc.model.JavaTypeName, boolean, boolean) |
| 852 | */ |
| 853 | private static void parseType( final JavaTypeName t, final String text, final boolean runtimeException ) |
| 854 | throws ParseException |
| 855 | { |
| 856 | final Tokenizer tokenizer = new Tokenizer( text, runtimeException ); |
| 857 | boolean basic_type_or_reference_type_seen = false; |
| 858 | boolean lpar_seen = false; |
| 859 | Token token; |
| 860 | |
| 861 | while ( ( token = tokenizer.next() ) != null ) |
| 862 | { |
| 863 | switch ( token.getKind() ) |
| 864 | { |
| 865 | case Tokenizer.TK_BASIC_TYPE: |
| 866 | if ( basic_type_or_reference_type_seen || !CLASSNAME_ENCODINGS.containsKey( token.getValue() ) ) |
| 867 | { |
| 868 | if ( runtimeException ) |
| 869 | { |
| 870 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 871 | } |
| 872 | else |
| 873 | { |
| 874 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 875 | } |
| 876 | } |
| 877 | basic_type_or_reference_type_seen = true; |
| 878 | t.className = token.getValue(); |
| 879 | t.qualifiedName = token.getValue(); |
| 880 | t.simpleName = token.getValue(); |
| 881 | t.packageName = ""; |
| 882 | t.primitive = true; |
| 883 | break; |
| 884 | |
| 885 | case Tokenizer.TK_IDENTIFIER: |
| 886 | if ( basic_type_or_reference_type_seen ) |
| 887 | { |
| 888 | if ( runtimeException ) |
| 889 | { |
| 890 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 891 | } |
| 892 | else |
| 893 | { |
| 894 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 895 | } |
| 896 | } |
| 897 | basic_type_or_reference_type_seen = true; |
| 898 | tokenizer.back(); |
| 899 | parseReferenceType( tokenizer, t, false, runtimeException ); |
| 900 | break; |
| 901 | |
| 902 | case Tokenizer.TK_LPAR: |
| 903 | if ( !basic_type_or_reference_type_seen || lpar_seen ) |
| 904 | { |
| 905 | if ( runtimeException ) |
| 906 | { |
| 907 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 908 | } |
| 909 | else |
| 910 | { |
| 911 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 912 | } |
| 913 | } |
| 914 | lpar_seen = true; |
| 915 | break; |
| 916 | |
| 917 | case Tokenizer.TK_RPAR: |
| 918 | if ( !( basic_type_or_reference_type_seen && lpar_seen ) ) |
| 919 | { |
| 920 | if ( runtimeException ) |
| 921 | { |
| 922 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 923 | } |
| 924 | else |
| 925 | { |
| 926 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 927 | } |
| 928 | } |
| 929 | lpar_seen = false; |
| 930 | t.dimension++; |
| 931 | t.className = "[" + t.className; |
| 932 | t.qualifiedName += "[]"; |
| 933 | t.simpleName += "[]"; |
| 934 | break; |
| 935 | |
| 936 | default: |
| 937 | if ( runtimeException ) |
| 938 | { |
| 939 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 940 | } |
| 941 | else |
| 942 | { |
| 943 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 944 | } |
| 945 | |
| 946 | } |
| 947 | } |
| 948 | |
| 949 | if ( !basic_type_or_reference_type_seen || lpar_seen ) |
| 950 | { |
| 951 | if ( runtimeException ) |
| 952 | { |
| 953 | throw createUnexpectedEndOfInputIllegalArgumentException( tokenizer.input(), tokenizer.length() ); |
| 954 | } |
| 955 | else |
| 956 | { |
| 957 | throw createUnexpectedEndOfInputParseException( tokenizer.input(), tokenizer.length() ); |
| 958 | } |
| 959 | } |
| 960 | |
| 961 | if ( t.dimension > 0 ) |
| 962 | { |
| 963 | if ( t.primitive ) |
| 964 | { |
| 965 | t.className = new StringBuilder( t.className.length() ). |
| 966 | append( t.className.substring( 0, t.dimension ) ). |
| 967 | append( CLASSNAME_ENCODINGS.get( t.className.substring( t.dimension ) ) ).toString(); |
| 968 | |
| 969 | } |
| 970 | else |
| 971 | { |
| 972 | t.className = new StringBuilder( t.className.length() ). |
| 973 | append( t.className.substring( 0, t.dimension ) ). |
| 974 | append( "L" ).append( t.className.substring( t.dimension ) ).append( ";" ).toString(); |
| 975 | |
| 976 | } |
| 977 | } |
| 978 | |
| 979 | t.arguments = Collections.unmodifiableList( t.getArguments() ); |
| 980 | } |
| 981 | |
| 982 | /** |
| 983 | * JLS - Java SE 7 Edition - Chapter 18. Syntax |
| 984 | * <pre> |
| 985 | * ReferenceType: |
| 986 | * Identifier [TypeArguments] { . Identifier [TypeArguments] } |
| 987 | * </pre> |
| 988 | * |
| 989 | * @see #parseTypeArguments(org.jomc.model.JavaTypeName.Tokenizer, org.jomc.model.JavaTypeName, boolean) |
| 990 | */ |
| 991 | private static void parseReferenceType( final Tokenizer tokenizer, final JavaTypeName t, |
| 992 | final boolean in_type_arguments, final boolean runtimeException ) |
| 993 | throws ParseException |
| 994 | { |
| 995 | final StringBuilder classNameBuilder = new StringBuilder( tokenizer.input().length() ); |
| 996 | final StringBuilder typeNameBuilder = new StringBuilder( tokenizer.input().length() ); |
| 997 | boolean identifier_seen = false; |
| 998 | boolean type_arguments_seen = false; |
| 999 | Token token; |
| 1000 | |
| 1001 | while ( ( token = tokenizer.next() ) != null ) |
| 1002 | { |
| 1003 | switch ( token.getKind() ) |
| 1004 | { |
| 1005 | case Tokenizer.TK_IDENTIFIER: |
| 1006 | if ( identifier_seen || type_arguments_seen ) |
| 1007 | { |
| 1008 | if ( runtimeException ) |
| 1009 | { |
| 1010 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1011 | } |
| 1012 | else |
| 1013 | { |
| 1014 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1015 | } |
| 1016 | } |
| 1017 | identifier_seen = true; |
| 1018 | type_arguments_seen = false; |
| 1019 | t.simpleName = token.getValue(); |
| 1020 | t.packageName = typeNameBuilder.length() > 0 |
| 1021 | ? typeNameBuilder.substring( 0, typeNameBuilder.length() - 1 ) |
| 1022 | : ""; |
| 1023 | |
| 1024 | classNameBuilder.append( token.getValue() ); |
| 1025 | typeNameBuilder.append( token.getValue() ); |
| 1026 | break; |
| 1027 | |
| 1028 | case Tokenizer.TK_DOT: |
| 1029 | if ( !( identifier_seen || type_arguments_seen ) ) |
| 1030 | { |
| 1031 | if ( runtimeException ) |
| 1032 | { |
| 1033 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1034 | } |
| 1035 | else |
| 1036 | { |
| 1037 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1038 | } |
| 1039 | } |
| 1040 | identifier_seen = false; |
| 1041 | type_arguments_seen = false; |
| 1042 | classNameBuilder.append( token.getValue() ); |
| 1043 | typeNameBuilder.append( token.getValue() ); |
| 1044 | break; |
| 1045 | |
| 1046 | case Tokenizer.TK_LT: |
| 1047 | if ( !identifier_seen ) |
| 1048 | { |
| 1049 | if ( runtimeException ) |
| 1050 | { |
| 1051 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1052 | } |
| 1053 | else |
| 1054 | { |
| 1055 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1056 | } |
| 1057 | } |
| 1058 | identifier_seen = false; |
| 1059 | type_arguments_seen = true; |
| 1060 | tokenizer.back(); |
| 1061 | parseTypeArguments( tokenizer, t, runtimeException ); |
| 1062 | break; |
| 1063 | |
| 1064 | case Tokenizer.TK_LPAR: |
| 1065 | if ( !( identifier_seen || type_arguments_seen ) || in_type_arguments ) |
| 1066 | { |
| 1067 | if ( runtimeException ) |
| 1068 | { |
| 1069 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1070 | } |
| 1071 | else |
| 1072 | { |
| 1073 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1074 | } |
| 1075 | } |
| 1076 | tokenizer.back(); |
| 1077 | t.className = classNameBuilder.toString(); |
| 1078 | t.qualifiedName = typeNameBuilder.toString(); |
| 1079 | return; |
| 1080 | |
| 1081 | case Tokenizer.TK_COMMA: |
| 1082 | case Tokenizer.TK_GT: |
| 1083 | if ( !( identifier_seen || type_arguments_seen ) || !in_type_arguments ) |
| 1084 | { |
| 1085 | if ( runtimeException ) |
| 1086 | { |
| 1087 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1088 | } |
| 1089 | else |
| 1090 | { |
| 1091 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1092 | } |
| 1093 | } |
| 1094 | tokenizer.back(); |
| 1095 | t.className = classNameBuilder.toString(); |
| 1096 | t.qualifiedName = typeNameBuilder.toString(); |
| 1097 | return; |
| 1098 | |
| 1099 | default: |
| 1100 | if ( runtimeException ) |
| 1101 | { |
| 1102 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1103 | } |
| 1104 | else |
| 1105 | { |
| 1106 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1107 | } |
| 1108 | |
| 1109 | } |
| 1110 | } |
| 1111 | |
| 1112 | if ( !( identifier_seen || type_arguments_seen ) ) |
| 1113 | { |
| 1114 | if ( runtimeException ) |
| 1115 | { |
| 1116 | throw createUnexpectedEndOfInputIllegalArgumentException( tokenizer.input(), tokenizer.length() ); |
| 1117 | } |
| 1118 | else |
| 1119 | { |
| 1120 | throw createUnexpectedEndOfInputParseException( tokenizer.input(), tokenizer.length() ); |
| 1121 | } |
| 1122 | } |
| 1123 | |
| 1124 | t.className = classNameBuilder.toString(); |
| 1125 | t.qualifiedName = typeNameBuilder.toString(); |
| 1126 | } |
| 1127 | |
| 1128 | /** |
| 1129 | * JLS - Java SE 7 Edition - Chapter 18. Syntax |
| 1130 | * <pre> |
| 1131 | * TypeArguments: |
| 1132 | * < TypeArgument { , TypeArgument } > |
| 1133 | * </pre> |
| 1134 | * |
| 1135 | * @see #parseTypeArgument(org.jomc.model.JavaTypeName.Tokenizer, org.jomc.model.JavaTypeName, boolean) |
| 1136 | */ |
| 1137 | private static void parseTypeArguments( final Tokenizer tokenizer, final JavaTypeName t, |
| 1138 | final boolean runtimeException ) |
| 1139 | throws ParseException |
| 1140 | { |
| 1141 | boolean lt_seen = false; |
| 1142 | boolean argument_seen = false; |
| 1143 | Token token; |
| 1144 | |
| 1145 | while ( ( token = tokenizer.next() ) != null ) |
| 1146 | { |
| 1147 | switch ( token.getKind() ) |
| 1148 | { |
| 1149 | case Tokenizer.TK_LT: |
| 1150 | if ( lt_seen || argument_seen ) |
| 1151 | { |
| 1152 | if ( runtimeException ) |
| 1153 | { |
| 1154 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1155 | } |
| 1156 | else |
| 1157 | { |
| 1158 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1159 | } |
| 1160 | } |
| 1161 | lt_seen = true; |
| 1162 | argument_seen = false; |
| 1163 | break; |
| 1164 | |
| 1165 | case Tokenizer.TK_GT: |
| 1166 | if ( !argument_seen ) |
| 1167 | { |
| 1168 | if ( runtimeException ) |
| 1169 | { |
| 1170 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1171 | } |
| 1172 | else |
| 1173 | { |
| 1174 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1175 | } |
| 1176 | } |
| 1177 | return; |
| 1178 | |
| 1179 | case Tokenizer.TK_COMMA: |
| 1180 | if ( !argument_seen ) |
| 1181 | { |
| 1182 | if ( runtimeException ) |
| 1183 | { |
| 1184 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1185 | } |
| 1186 | else |
| 1187 | { |
| 1188 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1189 | } |
| 1190 | } |
| 1191 | argument_seen = false; |
| 1192 | break; |
| 1193 | |
| 1194 | case Tokenizer.TK_IDENTIFIER: |
| 1195 | if ( !lt_seen || argument_seen ) |
| 1196 | { |
| 1197 | if ( runtimeException ) |
| 1198 | { |
| 1199 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1200 | } |
| 1201 | else |
| 1202 | { |
| 1203 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1204 | } |
| 1205 | } |
| 1206 | argument_seen = true; |
| 1207 | tokenizer.back(); |
| 1208 | parseTypeArgument( tokenizer, t, runtimeException ); |
| 1209 | break; |
| 1210 | |
| 1211 | case Tokenizer.TK_QM: |
| 1212 | if ( !lt_seen || argument_seen ) |
| 1213 | { |
| 1214 | if ( runtimeException ) |
| 1215 | { |
| 1216 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1217 | } |
| 1218 | else |
| 1219 | { |
| 1220 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1221 | } |
| 1222 | } |
| 1223 | argument_seen = true; |
| 1224 | tokenizer.back(); |
| 1225 | parseTypeArgument( tokenizer, t, runtimeException ); |
| 1226 | break; |
| 1227 | |
| 1228 | default: |
| 1229 | if ( runtimeException ) |
| 1230 | { |
| 1231 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1232 | } |
| 1233 | else |
| 1234 | { |
| 1235 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1236 | } |
| 1237 | |
| 1238 | } |
| 1239 | } |
| 1240 | |
| 1241 | if ( runtimeException ) |
| 1242 | { |
| 1243 | throw createUnexpectedEndOfInputIllegalArgumentException( tokenizer.input(), tokenizer.length() ); |
| 1244 | } |
| 1245 | else |
| 1246 | { |
| 1247 | throw createUnexpectedEndOfInputParseException( tokenizer.input(), tokenizer.length() ); |
| 1248 | } |
| 1249 | } |
| 1250 | |
| 1251 | /** |
| 1252 | * <dl><dt>JLS - Java SE 7 Edition - Chapter 18. Syntax</dt> |
| 1253 | * <dd><pre> |
| 1254 | * TypeArgument: |
| 1255 | * ReferenceType |
| 1256 | * ? [ ( extends | super ) ReferenceType ] |
| 1257 | * </pre></dd> |
| 1258 | * <dt>JLS - Java SE 7 Edition - Chapter 4.5.1. Type Arguments and Wildcards</dt> |
| 1259 | * <dd><pre> |
| 1260 | * TypeArgument: |
| 1261 | * ReferenceType |
| 1262 | * Wildcard |
| 1263 | * |
| 1264 | * Wildcard: |
| 1265 | * ? WildcardBounds<i>opt</i> |
| 1266 | * |
| 1267 | * WildcardBounds: |
| 1268 | * extends ReferenceType |
| 1269 | * super ReferenceType |
| 1270 | * </pre></dd></dl> |
| 1271 | */ |
| 1272 | private static void parseTypeArgument( final Tokenizer tokenizer, final JavaTypeName t, |
| 1273 | final boolean runtimeException ) |
| 1274 | throws ParseException |
| 1275 | { |
| 1276 | boolean qm_seen = false; |
| 1277 | boolean keyword_seen = false; |
| 1278 | Token token; |
| 1279 | |
| 1280 | final Argument argument = new Argument(); |
| 1281 | t.getArguments().add( argument ); |
| 1282 | |
| 1283 | while ( ( token = tokenizer.next() ) != null ) |
| 1284 | { |
| 1285 | switch ( token.getKind() ) |
| 1286 | { |
| 1287 | case Tokenizer.TK_IDENTIFIER: |
| 1288 | if ( qm_seen && !keyword_seen ) |
| 1289 | { |
| 1290 | if ( runtimeException ) |
| 1291 | { |
| 1292 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1293 | } |
| 1294 | else |
| 1295 | { |
| 1296 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1297 | } |
| 1298 | } |
| 1299 | tokenizer.back(); |
| 1300 | argument.typeName = new JavaTypeName(); |
| 1301 | parseReferenceType( tokenizer, argument.getTypeName(), true, runtimeException ); |
| 1302 | return; |
| 1303 | |
| 1304 | case Tokenizer.TK_QM: |
| 1305 | if ( qm_seen ) |
| 1306 | { |
| 1307 | if ( runtimeException ) |
| 1308 | { |
| 1309 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1310 | } |
| 1311 | else |
| 1312 | { |
| 1313 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1314 | } |
| 1315 | } |
| 1316 | qm_seen = true; |
| 1317 | argument.wildcard = true; |
| 1318 | break; |
| 1319 | |
| 1320 | case Tokenizer.TK_KEYWORD: |
| 1321 | if ( !qm_seen || keyword_seen |
| 1322 | || !( "extends".equals( token.getValue() ) || "super".equals( token.getValue() ) ) ) |
| 1323 | { |
| 1324 | if ( runtimeException ) |
| 1325 | { |
| 1326 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1327 | } |
| 1328 | else |
| 1329 | { |
| 1330 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1331 | } |
| 1332 | } |
| 1333 | keyword_seen = true; |
| 1334 | argument.wildcardBounds = token.getValue(); |
| 1335 | break; |
| 1336 | |
| 1337 | case Tokenizer.TK_COMMA: |
| 1338 | case Tokenizer.TK_GT: |
| 1339 | if ( !qm_seen || keyword_seen ) |
| 1340 | { |
| 1341 | if ( runtimeException ) |
| 1342 | { |
| 1343 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1344 | } |
| 1345 | else |
| 1346 | { |
| 1347 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1348 | } |
| 1349 | } |
| 1350 | tokenizer.back(); |
| 1351 | return; |
| 1352 | |
| 1353 | default: |
| 1354 | if ( runtimeException ) |
| 1355 | { |
| 1356 | throw createInvalidTokenIllegalArgumentException( tokenizer.input(), token ); |
| 1357 | } |
| 1358 | else |
| 1359 | { |
| 1360 | throw createInvalidTokenParseException( tokenizer.input(), token ); |
| 1361 | } |
| 1362 | |
| 1363 | } |
| 1364 | } |
| 1365 | |
| 1366 | if ( runtimeException ) |
| 1367 | { |
| 1368 | throw createUnexpectedEndOfInputIllegalArgumentException( tokenizer.input(), tokenizer.length() ); |
| 1369 | } |
| 1370 | else |
| 1371 | { |
| 1372 | throw createUnexpectedEndOfInputParseException( tokenizer.input(), tokenizer.length() ); |
| 1373 | } |
| 1374 | } |
| 1375 | |
| 1376 | private static ParseException createInvalidTokenParseException( final String input, final Token token ) |
| 1377 | { |
| 1378 | if ( token.getValue().length() > 1 ) |
| 1379 | { |
| 1380 | return new ParseException( getMessage( "invalidWord", input, token.getValue(), |
| 1381 | token.getPosition() ), token.getPosition() ); |
| 1382 | |
| 1383 | } |
| 1384 | else |
| 1385 | { |
| 1386 | return new ParseException( getMessage( "invalidCharacter", input, token.getValue(), |
| 1387 | token.getPosition() ), token.getPosition() ); |
| 1388 | |
| 1389 | } |
| 1390 | } |
| 1391 | |
| 1392 | private static IllegalArgumentException createInvalidTokenIllegalArgumentException( final String input, |
| 1393 | final Token token ) |
| 1394 | { |
| 1395 | if ( token.getValue().length() > 1 ) |
| 1396 | { |
| 1397 | return new IllegalArgumentException( getMessage( "invalidWord", input, token.getValue(), |
| 1398 | token.getPosition() ) ); |
| 1399 | |
| 1400 | } |
| 1401 | else |
| 1402 | { |
| 1403 | return new IllegalArgumentException( getMessage( "invalidCharacter", input, token.getValue(), |
| 1404 | token.getPosition() ) ); |
| 1405 | |
| 1406 | } |
| 1407 | } |
| 1408 | |
| 1409 | private static ParseException createUnexpectedEndOfInputParseException( final String input, |
| 1410 | final int length ) |
| 1411 | { |
| 1412 | return new ParseException( getMessage( "unexpectedEndOfInput", input, length ), length ); |
| 1413 | } |
| 1414 | |
| 1415 | private static IllegalArgumentException createUnexpectedEndOfInputIllegalArgumentException( final String input, |
| 1416 | final int length ) |
| 1417 | { |
| 1418 | return new IllegalArgumentException( getMessage( "unexpectedEndOfInput", input, length ) ); |
| 1419 | } |
| 1420 | |
| 1421 | private static String getMessage( final String key, final Object... args ) |
| 1422 | { |
| 1423 | return MessageFormat.format( ResourceBundle.getBundle( |
| 1424 | JavaTypeName.class.getName().replace( '.', '/' ), Locale.getDefault() ). |
| 1425 | getString( key ), args ); |
| 1426 | |
| 1427 | } |
| 1428 | |
| 1429 | private static final class Token |
| 1430 | { |
| 1431 | |
| 1432 | private int kind; |
| 1433 | |
| 1434 | private final int position; |
| 1435 | |
| 1436 | private final String value; |
| 1437 | |
| 1438 | private Token( final int kind, final int position, final String value ) |
| 1439 | { |
| 1440 | super(); |
| 1441 | this.kind = kind; |
| 1442 | this.position = position; |
| 1443 | this.value = value; |
| 1444 | } |
| 1445 | |
| 1446 | private int getKind() |
| 1447 | { |
| 1448 | return this.kind; |
| 1449 | } |
| 1450 | |
| 1451 | private int getPosition() |
| 1452 | { |
| 1453 | return this.position; |
| 1454 | } |
| 1455 | |
| 1456 | private String getValue() |
| 1457 | { |
| 1458 | return this.value; |
| 1459 | } |
| 1460 | |
| 1461 | } |
| 1462 | |
| 1463 | private static final class Tokenizer |
| 1464 | { |
| 1465 | |
| 1466 | private static final int TK_BASIC_TYPE = 1; |
| 1467 | |
| 1468 | private static final int TK_KEYWORD = 2; |
| 1469 | |
| 1470 | private static final int TK_LITERAL = 3; |
| 1471 | |
| 1472 | private static final int TK_IDENTIFIER = 4; |
| 1473 | |
| 1474 | private static final int TK_LPAR = 5; |
| 1475 | |
| 1476 | private static final int TK_RPAR = 6; |
| 1477 | |
| 1478 | private static final int TK_LT = 7; |
| 1479 | |
| 1480 | private static final int TK_GT = 8; |
| 1481 | |
| 1482 | private static final int TK_COMMA = 9; |
| 1483 | |
| 1484 | private static final int TK_DOT = 10; |
| 1485 | |
| 1486 | private static final int TK_QM = 11; |
| 1487 | |
| 1488 | private final String input; |
| 1489 | |
| 1490 | private int token; |
| 1491 | |
| 1492 | private final List<Token> tokens; |
| 1493 | |
| 1494 | private int length; |
| 1495 | |
| 1496 | private Tokenizer( final String input, final boolean runtimeException ) throws ParseException |
| 1497 | { |
| 1498 | super(); |
| 1499 | this.input = input; |
| 1500 | this.token = 0; |
| 1501 | this.tokens = tokenize( input, runtimeException ); |
| 1502 | |
| 1503 | if ( !this.tokens.isEmpty() ) |
| 1504 | { |
| 1505 | final Token last = this.tokens.get( this.tokens.size() - 1 ); |
| 1506 | this.length = last.getPosition() + last.getValue().length(); |
| 1507 | } |
| 1508 | } |
| 1509 | |
| 1510 | private String input() |
| 1511 | { |
| 1512 | return this.input; |
| 1513 | } |
| 1514 | |
| 1515 | private Token next() |
| 1516 | { |
| 1517 | final int idx = this.token++; |
| 1518 | return idx < this.tokens.size() ? this.tokens.get( idx ) : null; |
| 1519 | } |
| 1520 | |
| 1521 | private void back() |
| 1522 | { |
| 1523 | this.token--; |
| 1524 | } |
| 1525 | |
| 1526 | private int length() |
| 1527 | { |
| 1528 | return this.length; |
| 1529 | } |
| 1530 | |
| 1531 | private static List<Token> tokenize( final String input, final boolean runtimeException ) |
| 1532 | throws ParseException |
| 1533 | { |
| 1534 | final List<Token> list = new LinkedList<Token>(); |
| 1535 | final ParsePosition pos = new ParsePosition( 0 ); |
| 1536 | |
| 1537 | for ( Token t = nextToken( pos, input, runtimeException ); |
| 1538 | t != null; |
| 1539 | t = nextToken( pos, input, runtimeException ) ) |
| 1540 | { |
| 1541 | list.add( t ); |
| 1542 | } |
| 1543 | |
| 1544 | return Collections.unmodifiableList( list ); |
| 1545 | } |
| 1546 | |
| 1547 | private static Token nextToken( final ParsePosition pos, final String str, final boolean runtimeException ) |
| 1548 | throws ParseException |
| 1549 | { |
| 1550 | for ( final int s0 = str.length(); pos.getIndex() < s0; pos.setIndex( pos.getIndex() + 1 ) ) |
| 1551 | { |
| 1552 | if ( !Character.isWhitespace( str.charAt( pos.getIndex() ) ) ) |
| 1553 | { |
| 1554 | break; |
| 1555 | } |
| 1556 | } |
| 1557 | |
| 1558 | int idx = pos.getIndex(); |
| 1559 | Token token = null; |
| 1560 | |
| 1561 | if ( idx < str.length() ) |
| 1562 | { |
| 1563 | // Check separator characters. |
| 1564 | switch ( str.charAt( idx ) ) |
| 1565 | { |
| 1566 | case ',': |
| 1567 | token = new Token( TK_COMMA, idx, "," ); |
| 1568 | pos.setIndex( idx + 1 ); |
| 1569 | break; |
| 1570 | case '.': |
| 1571 | token = new Token( TK_DOT, idx, "." ); |
| 1572 | pos.setIndex( idx + 1 ); |
| 1573 | break; |
| 1574 | case '<': |
| 1575 | token = new Token( TK_LT, idx, "<" ); |
| 1576 | pos.setIndex( idx + 1 ); |
| 1577 | break; |
| 1578 | case '>': |
| 1579 | token = new Token( TK_GT, idx, ">" ); |
| 1580 | pos.setIndex( idx + 1 ); |
| 1581 | break; |
| 1582 | case '[': |
| 1583 | token = new Token( TK_LPAR, idx, "[" ); |
| 1584 | pos.setIndex( idx + 1 ); |
| 1585 | break; |
| 1586 | case ']': |
| 1587 | token = new Token( TK_RPAR, idx, "]" ); |
| 1588 | pos.setIndex( idx + 1 ); |
| 1589 | break; |
| 1590 | case '?': |
| 1591 | token = new Token( TK_QM, idx, "?" ); |
| 1592 | pos.setIndex( idx + 1 ); |
| 1593 | break; |
| 1594 | |
| 1595 | default: |
| 1596 | token = null; |
| 1597 | |
| 1598 | } |
| 1599 | |
| 1600 | // Check basic type. |
| 1601 | if ( token == null ) |
| 1602 | { |
| 1603 | for ( final String basicType : JavaLanguage.BASIC_TYPES ) |
| 1604 | { |
| 1605 | if ( str.substring( idx ).startsWith( basicType ) ) |
| 1606 | { |
| 1607 | idx += basicType.length(); |
| 1608 | |
| 1609 | if ( idx >= str.length() |
| 1610 | || !Character.isJavaIdentifierPart( str.charAt( idx ) ) ) |
| 1611 | { |
| 1612 | token = new Token( TK_BASIC_TYPE, pos.getIndex(), basicType ); |
| 1613 | pos.setIndex( idx ); |
| 1614 | break; |
| 1615 | } |
| 1616 | |
| 1617 | idx -= basicType.length(); |
| 1618 | } |
| 1619 | } |
| 1620 | } |
| 1621 | |
| 1622 | // Check keyword. |
| 1623 | if ( token == null ) |
| 1624 | { |
| 1625 | for ( final String keyword : JavaLanguage.KEYWORDS ) |
| 1626 | { |
| 1627 | if ( str.substring( idx ).startsWith( keyword ) ) |
| 1628 | { |
| 1629 | idx += keyword.length(); |
| 1630 | |
| 1631 | if ( idx >= str.length() |
| 1632 | || !Character.isJavaIdentifierPart( str.charAt( idx ) ) ) |
| 1633 | { |
| 1634 | token = new Token( TK_KEYWORD, pos.getIndex(), keyword ); |
| 1635 | pos.setIndex( idx ); |
| 1636 | break; |
| 1637 | } |
| 1638 | |
| 1639 | idx -= keyword.length(); |
| 1640 | } |
| 1641 | } |
| 1642 | } |
| 1643 | |
| 1644 | // Check boolean literals. |
| 1645 | if ( token == null ) |
| 1646 | { |
| 1647 | for ( final String literal : JavaLanguage.BOOLEAN_LITERALS ) |
| 1648 | { |
| 1649 | if ( str.substring( idx ).startsWith( literal ) ) |
| 1650 | { |
| 1651 | idx += literal.length(); |
| 1652 | |
| 1653 | if ( idx >= str.length() |
| 1654 | || !Character.isJavaIdentifierPart( str.charAt( idx ) ) ) |
| 1655 | { |
| 1656 | token = new Token( TK_LITERAL, pos.getIndex(), literal ); |
| 1657 | pos.setIndex( idx ); |
| 1658 | break; |
| 1659 | } |
| 1660 | |
| 1661 | idx -= literal.length(); |
| 1662 | } |
| 1663 | } |
| 1664 | } |
| 1665 | |
| 1666 | // Check null literal. |
| 1667 | if ( token == null ) |
| 1668 | { |
| 1669 | if ( str.substring( idx ).startsWith( JavaLanguage.NULL_LITERAL ) ) |
| 1670 | { |
| 1671 | idx += JavaLanguage.NULL_LITERAL.length(); |
| 1672 | |
| 1673 | if ( idx >= str.length() |
| 1674 | || !Character.isJavaIdentifierPart( str.charAt( idx ) ) ) |
| 1675 | { |
| 1676 | token = new Token( TK_LITERAL, pos.getIndex(), JavaLanguage.NULL_LITERAL ); |
| 1677 | pos.setIndex( idx ); |
| 1678 | } |
| 1679 | else |
| 1680 | { |
| 1681 | idx -= JavaLanguage.NULL_LITERAL.length(); |
| 1682 | } |
| 1683 | } |
| 1684 | } |
| 1685 | |
| 1686 | // Check identifier. |
| 1687 | if ( token == null ) |
| 1688 | { |
| 1689 | for ( final int s0 = str.length(); idx < s0; idx++ ) |
| 1690 | { |
| 1691 | if ( !( idx == pos.getIndex() |
| 1692 | ? Character.isJavaIdentifierStart( str.charAt( idx ) ) |
| 1693 | : Character.isJavaIdentifierPart( str.charAt( idx ) ) ) ) |
| 1694 | { |
| 1695 | break; |
| 1696 | } |
| 1697 | } |
| 1698 | |
| 1699 | if ( idx != pos.getIndex() ) |
| 1700 | { |
| 1701 | token = new Token( TK_IDENTIFIER, pos.getIndex(), str.substring( pos.getIndex(), idx ) ); |
| 1702 | pos.setIndex( idx ); |
| 1703 | } |
| 1704 | } |
| 1705 | |
| 1706 | if ( token == null ) |
| 1707 | { |
| 1708 | final Token invalidToken = |
| 1709 | new Token( Integer.MIN_VALUE, idx, Character.toString( str.charAt( idx ) ) ); |
| 1710 | |
| 1711 | if ( runtimeException ) |
| 1712 | { |
| 1713 | throw createInvalidTokenIllegalArgumentException( str, invalidToken ); |
| 1714 | } |
| 1715 | else |
| 1716 | { |
| 1717 | throw createInvalidTokenParseException( str, invalidToken ); |
| 1718 | } |
| 1719 | } |
| 1720 | } |
| 1721 | |
| 1722 | return token; |
| 1723 | } |
| 1724 | |
| 1725 | } |
| 1726 | |
| 1727 | } |