001// License: GPL. For details, see LICENSE file. 002package org.openstreetmap.josm.gui.mappaint.mapcss; 003 004import java.lang.reflect.Method; 005import java.text.MessageFormat; 006import java.util.EnumSet; 007import java.util.Map; 008import java.util.Objects; 009import java.util.Set; 010import java.util.function.BiPredicate; 011import java.util.function.IntFunction; 012import java.util.function.Predicate; 013import java.util.regex.Pattern; 014import java.util.regex.PatternSyntaxException; 015 016import org.openstreetmap.josm.data.osm.INode; 017import org.openstreetmap.josm.data.osm.IPrimitive; 018import org.openstreetmap.josm.data.osm.IRelation; 019import org.openstreetmap.josm.data.osm.IWay; 020import org.openstreetmap.josm.data.osm.Node; 021import org.openstreetmap.josm.data.osm.OsmPrimitive; 022import org.openstreetmap.josm.data.osm.OsmUtils; 023import org.openstreetmap.josm.data.osm.Relation; 024import org.openstreetmap.josm.data.osm.Tag; 025import org.openstreetmap.josm.data.osm.search.SearchCompiler.InDataSourceArea; 026import org.openstreetmap.josm.data.osm.visitor.paint.relations.Multipolygon; 027import org.openstreetmap.josm.data.osm.visitor.paint.relations.MultipolygonCache; 028import org.openstreetmap.josm.gui.mappaint.Cascade; 029import org.openstreetmap.josm.gui.mappaint.ElemStyles; 030import org.openstreetmap.josm.gui.mappaint.Environment; 031import org.openstreetmap.josm.gui.mappaint.mapcss.Condition.Context; 032import org.openstreetmap.josm.gui.mappaint.mapcss.Condition.ToTagConvertable; 033import org.openstreetmap.josm.tools.CheckParameterUtil; 034import org.openstreetmap.josm.tools.JosmRuntimeException; 035import org.openstreetmap.josm.tools.Utils; 036 037/** 038 * Factory to generate {@link Condition}s. 039 * @since 10837 (Extracted from Condition) 040 */ 041public final class ConditionFactory { 042 043 private ConditionFactory() { 044 // Hide default constructor for utils classes 045 } 046 047 /** 048 * Create a new condition that checks the key and the value of the object. 049 * @param k The key. 050 * @param v The reference value 051 * @param op The operation to use when comparing the value 052 * @param context The type of context to use. 053 * @param considerValAsKey whether to consider {@code v} as another key and compare the values of key {@code k} and key {@code v}. 054 * @return The new condition. 055 * @throws MapCSSException if the arguments are incorrect 056 */ 057 public static Condition createKeyValueCondition(String k, String v, Op op, Context context, boolean considerValAsKey) { 058 switch (context) { 059 case PRIMITIVE: 060 if (KeyValueRegexpCondition.SUPPORTED_OPS.contains(op) && !considerValAsKey) { 061 try { 062 return new KeyValueRegexpCondition(k, v, op, false); 063 } catch (PatternSyntaxException e) { 064 throw new MapCSSException(e); 065 } 066 } 067 if (!considerValAsKey && op == Op.EQ) 068 return new SimpleKeyValueCondition(k, v); 069 return new KeyValueCondition(k, v, op, considerValAsKey); 070 case LINK: 071 if (considerValAsKey) 072 throw new MapCSSException("''considerValAsKey'' not supported in LINK context"); 073 if ("role".equalsIgnoreCase(k)) 074 return new RoleCondition(v, op); 075 else if ("index".equalsIgnoreCase(k)) 076 return new IndexCondition(v, op); 077 else 078 throw new MapCSSException( 079 MessageFormat.format("Expected key ''role'' or ''index'' in link context. Got ''{0}''.", k)); 080 081 default: throw new AssertionError(); 082 } 083 } 084 085 /** 086 * Create a condition in which the key and the value need to match a given regexp 087 * @param k The key regexp 088 * @param v The value regexp 089 * @param op The operation to use when comparing the key and the value. 090 * @return The new condition. 091 */ 092 public static Condition createRegexpKeyRegexpValueCondition(String k, String v, Op op) { 093 return new RegexpKeyValueRegexpCondition(k, v, op); 094 } 095 096 /** 097 * Creates a condition that checks the given key. 098 * @param k The key to test for 099 * @param not <code>true</code> to invert the match 100 * @param matchType The match type to check for. 101 * @param context The context this rule is found in. 102 * @return the new condition. 103 */ 104 public static Condition createKeyCondition(String k, boolean not, KeyMatchType matchType, Context context) { 105 switch (context) { 106 case PRIMITIVE: 107 return new KeyCondition(k, not, matchType); 108 case LINK: 109 if (matchType != null) 110 throw new MapCSSException("Question mark operator ''?'' and regexp match not supported in LINK context"); 111 if (not) 112 return new RoleCondition(k, Op.NEQ); 113 else 114 return new RoleCondition(k, Op.EQ); 115 116 default: throw new AssertionError(); 117 } 118 } 119 120 /** 121 * Create a new pseudo class condition 122 * @param id The id of the pseudo class 123 * @param not <code>true</code> to invert the condition 124 * @param context The context the class is found in. 125 * @return The new condition 126 */ 127 public static PseudoClassCondition createPseudoClassCondition(String id, boolean not, Context context) { 128 return PseudoClassCondition.createPseudoClassCondition(id, not, context); 129 } 130 131 /** 132 * Create a new class condition 133 * @param id The id of the class to match 134 * @param not <code>true</code> to invert the condition 135 * @param context Ignored 136 * @return The new condition 137 */ 138 public static ClassCondition createClassCondition(String id, boolean not, Context context) { 139 return new ClassCondition(id, not); 140 } 141 142 /** 143 * Create a new condition that a expression needs to be fulfilled 144 * @param e the expression to check 145 * @param context Ignored 146 * @return The new condition 147 */ 148 public static ExpressionCondition createExpressionCondition(Expression e, Context context) { 149 return new ExpressionCondition(e); 150 } 151 152 /** 153 * This is the operation that {@link KeyValueCondition} uses to match. 154 */ 155 public enum Op { 156 /** The value equals the given reference. */ 157 EQ(Objects::equals), 158 /** The value does not equal the reference. */ 159 NEQ(EQ), 160 /** The value is greater than or equal to the given reference value (as float). */ 161 GREATER_OR_EQUAL(comparisonResult -> comparisonResult >= 0), 162 /** The value is greater than the given reference value (as float). */ 163 GREATER(comparisonResult -> comparisonResult > 0), 164 /** The value is less than or equal to the given reference value (as float). */ 165 LESS_OR_EQUAL(comparisonResult -> comparisonResult <= 0), 166 /** The value is less than the given reference value (as float). */ 167 LESS(comparisonResult -> comparisonResult < 0), 168 /** The reference is treated as regular expression and the value needs to match it. */ 169 REGEX((test, prototype) -> Pattern.compile(prototype).matcher(test).find()), 170 /** The reference is treated as regular expression and the value needs to not match it. */ 171 NREGEX(REGEX), 172 /** The reference is treated as a list separated by ';'. Spaces around the ; are ignored. 173 * The value needs to be equal one of the list elements. */ 174 ONE_OF((test, prototype) -> OsmUtils.splitMultipleValues(test).anyMatch(prototype::equals)), 175 /** The value needs to begin with the reference string. */ 176 BEGINS_WITH(String::startsWith), 177 /** The value needs to end with the reference string. */ 178 ENDS_WITH(String::endsWith), 179 /** The value needs to contain the reference string. */ 180 CONTAINS(String::contains); 181 182 static final Set<Op> NEGATED_OPS = EnumSet.of(NEQ, NREGEX); 183 184 private final BiPredicate<String, String> function; 185 186 private final boolean negated; 187 188 /** 189 * Create a new string operation. 190 * @param func The function to apply during {@link #eval(String, String)}. 191 */ 192 Op(BiPredicate<String, String> func) { 193 this.function = func; 194 negated = false; 195 } 196 197 /** 198 * Create a new float operation that compares two float values 199 * @param comparatorResult A function to mapt the result of the comparison 200 */ 201 Op(IntFunction<Boolean> comparatorResult) { 202 this.function = (test, prototype) -> { 203 float testFloat; 204 try { 205 testFloat = Float.parseFloat(test); 206 } catch (NumberFormatException e) { 207 return Boolean.FALSE; 208 } 209 float prototypeFloat = Float.parseFloat(prototype); 210 211 int res = Float.compare(testFloat, prototypeFloat); 212 return comparatorResult.apply(res); 213 }; 214 negated = false; 215 } 216 217 /** 218 * Create a new Op by negating an other op. 219 * @param negate inverse operation 220 */ 221 Op(Op negate) { 222 this.function = (a, b) -> !negate.function.test(a, b); 223 negated = true; 224 } 225 226 /** 227 * Evaluates a value against a reference string. 228 * @param testString The value. May be <code>null</code> 229 * @param prototypeString The reference string- 230 * @return <code>true</code> if and only if this operation matches for the given value/reference pair. 231 */ 232 public boolean eval(String testString, String prototypeString) { 233 if (testString == null) 234 return negated; 235 else 236 return function.test(testString, prototypeString); 237 } 238 } 239 240 /** 241 * Most common case of a KeyValueCondition, this is the basic key=value case. 242 * 243 * Extra class for performance reasons. 244 */ 245 public static class SimpleKeyValueCondition implements Condition, ToTagConvertable { 246 /** 247 * The key to search for. 248 */ 249 public final String k; 250 /** 251 * The value to search for. 252 */ 253 public final String v; 254 255 /** 256 * Create a new SimpleKeyValueCondition. 257 * @param k The key 258 * @param v The value. 259 */ 260 public SimpleKeyValueCondition(String k, String v) { 261 this.k = k; 262 this.v = v; 263 } 264 265 @Override 266 public boolean applies(Environment e) { 267 return v.equals(e.osm.get(k)); 268 } 269 270 @Override 271 public Tag asTag(OsmPrimitive primitive) { 272 return new Tag(k, v); 273 } 274 275 @Override 276 public String toString() { 277 return '[' + k + '=' + v + ']'; 278 } 279 280 } 281 282 /** 283 * <p>Represents a key/value condition which is either applied to a primitive.</p> 284 * 285 */ 286 public static class KeyValueCondition implements Condition, ToTagConvertable { 287 /** 288 * The key to search for. 289 */ 290 public final String k; 291 /** 292 * The value to search for. 293 */ 294 public final String v; 295 /** 296 * The key/value match operation. 297 */ 298 public final Op op; 299 /** 300 * If this flag is set, {@link #v} is treated as a key and the value is the value set for that key. 301 */ 302 public final boolean considerValAsKey; 303 304 /** 305 * <p>Creates a key/value-condition.</p> 306 * 307 * @param k the key 308 * @param v the value 309 * @param op the operation 310 * @param considerValAsKey whether to consider {@code v} as another key and compare the values of key {@code k} and key {@code v}. 311 */ 312 public KeyValueCondition(String k, String v, Op op, boolean considerValAsKey) { 313 this.k = k; 314 this.v = v; 315 this.op = op; 316 this.considerValAsKey = considerValAsKey; 317 } 318 319 /** 320 * Determines if this condition requires an exact key match. 321 * @return {@code true} if this condition requires an exact key match. 322 * @since 14801 323 */ 324 public boolean requiresExactKeyMatch() { 325 return !Op.NEGATED_OPS.contains(op); 326 } 327 328 @Override 329 public boolean applies(Environment env) { 330 return op.eval(env.osm.get(k), considerValAsKey ? env.osm.get(v) : v); 331 } 332 333 @Override 334 public Tag asTag(OsmPrimitive primitive) { 335 return new Tag(k, v); 336 } 337 338 @Override 339 public String toString() { 340 return '[' + k + '\'' + op + '\'' + v + ']'; 341 } 342 } 343 344 /** 345 * This condition requires a fixed key to match a given regexp 346 */ 347 public static class KeyValueRegexpCondition extends KeyValueCondition { 348 protected static final Set<Op> SUPPORTED_OPS = EnumSet.of(Op.REGEX, Op.NREGEX); 349 350 final Pattern pattern; 351 352 /** 353 * Constructs a new {@code KeyValueRegexpCondition}. 354 * @param k key 355 * @param v value 356 * @param op operation 357 * @param considerValAsKey must be false 358 * @throws PatternSyntaxException if the value syntax is invalid 359 */ 360 public KeyValueRegexpCondition(String k, String v, Op op, boolean considerValAsKey) { 361 super(k, v, op, considerValAsKey); 362 CheckParameterUtil.ensureThat(!considerValAsKey, "considerValAsKey is not supported"); 363 CheckParameterUtil.ensureThat(SUPPORTED_OPS.contains(op), "Op must be REGEX or NREGEX"); 364 this.pattern = Pattern.compile(v); 365 } 366 367 protected boolean matches(Environment env) { 368 final String value = env.osm.get(k); 369 return value != null && pattern.matcher(value).find(); 370 } 371 372 @Override 373 public boolean applies(Environment env) { 374 if (Op.REGEX == op) { 375 return matches(env); 376 } else if (Op.NREGEX == op) { 377 return !matches(env); 378 } else { 379 throw new IllegalStateException(); 380 } 381 } 382 } 383 384 /** 385 * A condition that checks that a key with the matching pattern has a value with the matching pattern. 386 */ 387 public static class RegexpKeyValueRegexpCondition extends KeyValueRegexpCondition { 388 389 final Pattern keyPattern; 390 391 /** 392 * Create a condition in which the key and the value need to match a given regexp 393 * @param k The key regexp 394 * @param v The value regexp 395 * @param op The operation to use when comparing the key and the value. 396 */ 397 public RegexpKeyValueRegexpCondition(String k, String v, Op op) { 398 super(k, v, op, false); 399 this.keyPattern = Pattern.compile(k); 400 } 401 402 @Override 403 public boolean requiresExactKeyMatch() { 404 return false; 405 } 406 407 @Override 408 protected boolean matches(Environment env) { 409 for (Map.Entry<String, String> kv: env.osm.getKeys().entrySet()) { 410 if (keyPattern.matcher(kv.getKey()).find() && pattern.matcher(kv.getValue()).find()) { 411 return true; 412 } 413 } 414 return false; 415 } 416 } 417 418 /** 419 * Role condition. 420 */ 421 public static class RoleCondition implements Condition { 422 final String role; 423 final Op op; 424 425 /** 426 * Constructs a new {@code RoleCondition}. 427 * @param role role 428 * @param op operation 429 */ 430 public RoleCondition(String role, Op op) { 431 this.role = role; 432 this.op = op; 433 } 434 435 @Override 436 public boolean applies(Environment env) { 437 String testRole = env.getRole(); 438 if (testRole == null) return false; 439 return op.eval(testRole, role); 440 } 441 } 442 443 /** 444 * Index condition. 445 */ 446 public static class IndexCondition implements Condition { 447 final String index; 448 final Op op; 449 450 /** 451 * Constructs a new {@code IndexCondition}. 452 * @param index index 453 * @param op operation 454 */ 455 public IndexCondition(String index, Op op) { 456 this.index = index; 457 this.op = op; 458 } 459 460 @Override 461 public boolean applies(Environment env) { 462 if (env.index == null) return false; 463 if (index.startsWith("-")) { 464 return env.count != null && op.eval(Integer.toString(env.index - env.count), index); 465 } else { 466 return op.eval(Integer.toString(env.index + 1), index); 467 } 468 } 469 } 470 471 /** 472 * This defines how {@link KeyCondition} matches a given key. 473 */ 474 public enum KeyMatchType { 475 /** 476 * The key needs to be equal to the given label. 477 */ 478 EQ, 479 /** 480 * The key needs to have a true value (yes, ...) 481 * @see OsmUtils#isTrue(String) 482 */ 483 TRUE, 484 /** 485 * The key needs to have a false value (no, ...) 486 * @see OsmUtils#isFalse(String) 487 */ 488 FALSE, 489 /** 490 * The key needs to match the given regular expression. 491 */ 492 REGEX 493 } 494 495 /** 496 * <p>KeyCondition represent one of the following conditions in either the link or the 497 * primitive context:</p> 498 * <pre> 499 * ["a label"] PRIMITIVE: the primitive has a tag "a label" 500 * LINK: the parent is a relation and it has at least one member with the role 501 * "a label" referring to the child 502 * 503 * [!"a label"] PRIMITIVE: the primitive doesn't have a tag "a label" 504 * LINK: the parent is a relation but doesn't have a member with the role 505 * "a label" referring to the child 506 * 507 * ["a label"?] PRIMITIVE: the primitive has a tag "a label" whose value evaluates to a true-value 508 * LINK: not supported 509 * 510 * ["a label"?!] PRIMITIVE: the primitive has a tag "a label" whose value evaluates to a false-value 511 * LINK: not supported 512 * </pre> 513 */ 514 public static class KeyCondition implements Condition, ToTagConvertable { 515 516 /** 517 * The key name. 518 */ 519 public final String label; 520 /** 521 * If we should negate the result of the match. 522 */ 523 public final boolean negateResult; 524 /** 525 * Describes how to match the label against the key. 526 * @see KeyMatchType 527 */ 528 public final KeyMatchType matchType; 529 /** 530 * A predicate used to match a the regexp against the key. Only used if the match type is regexp. 531 */ 532 public final Predicate<String> containsPattern; 533 534 /** 535 * Creates a new KeyCondition 536 * @param label The key name (or regexp) to use. 537 * @param negateResult If we should negate the result., 538 * @param matchType The match type. 539 */ 540 public KeyCondition(String label, boolean negateResult, KeyMatchType matchType) { 541 this.label = label; 542 this.negateResult = negateResult; 543 this.matchType = matchType == null ? KeyMatchType.EQ : matchType; 544 this.containsPattern = KeyMatchType.REGEX == matchType 545 ? Pattern.compile(label).asPredicate() 546 : null; 547 } 548 549 @Override 550 public boolean applies(Environment e) { 551 switch(e.getContext()) { 552 case PRIMITIVE: 553 switch (matchType) { 554 case TRUE: 555 return e.osm.isKeyTrue(label) ^ negateResult; 556 case FALSE: 557 return e.osm.isKeyFalse(label) ^ negateResult; 558 case REGEX: 559 return e.osm.keySet().stream().anyMatch(containsPattern) ^ negateResult; 560 default: 561 return e.osm.hasKey(label) ^ negateResult; 562 } 563 case LINK: 564 Utils.ensure(false, "Illegal state: KeyCondition not supported in LINK context"); 565 return false; 566 default: throw new AssertionError(); 567 } 568 } 569 570 /** 571 * Get the matched key and the corresponding value. 572 * <p> 573 * WARNING: This ignores {@link #negateResult}. 574 * <p> 575 * WARNING: For regexp, the regular expression is returned instead of a key if the match failed. 576 * @param p The primitive to get the value from. 577 * @return The tag. 578 */ 579 @Override 580 public Tag asTag(OsmPrimitive p) { 581 String key = label; 582 if (KeyMatchType.REGEX == matchType) { 583 key = p.keySet().stream().filter(containsPattern).findAny().orElse(key); 584 } 585 return new Tag(key, p.get(key)); 586 } 587 588 @Override 589 public String toString() { 590 return '[' + (negateResult ? "!" : "") + label + ']'; 591 } 592 } 593 594 /** 595 * Class condition. 596 */ 597 public static class ClassCondition implements Condition { 598 599 /** Class identifier */ 600 public final String id; 601 final boolean not; 602 603 /** 604 * Constructs a new {@code ClassCondition}. 605 * @param id id 606 * @param not negation or not 607 */ 608 public ClassCondition(String id, boolean not) { 609 this.id = id; 610 this.not = not; 611 } 612 613 @Override 614 public boolean applies(Environment env) { 615 Cascade cascade = env.getCascade(env.layer); 616 return cascade != null && (not ^ cascade.containsKey(id)); 617 } 618 619 @Override 620 public String toString() { 621 return (not ? "!" : "") + '.' + id; 622 } 623 } 624 625 /** 626 * Like <a href="http://www.w3.org/TR/css3-selectors/#pseudo-classes">CSS pseudo classes</a>, MapCSS pseudo classes 627 * are written in lower case with dashes between words. 628 */ 629 public static final class PseudoClasses { 630 631 private PseudoClasses() { 632 // Hide default constructor for utilities classes 633 } 634 635 /** 636 * {@code closed} tests whether the way is closed or the relation is a closed multipolygon 637 * @param e MapCSS environment 638 * @return {@code true} if the way is closed or the relation is a closed multipolygon 639 */ 640 static boolean closed(Environment e) { // NO_UCD (unused code) 641 if (e.osm instanceof IWay<?> && ((IWay<?>) e.osm).isClosed()) 642 return true; 643 return e.osm instanceof IRelation<?> && ((IRelation<?>) e.osm).isMultipolygon(); 644 } 645 646 /** 647 * {@code :modified} tests whether the object has been modified. 648 * @param e MapCSS environment 649 * @return {@code true} if the object has been modified 650 * @see IPrimitive#isModified() 651 */ 652 static boolean modified(Environment e) { // NO_UCD (unused code) 653 return e.osm.isModified() || e.osm.isNewOrUndeleted(); 654 } 655 656 /** 657 * {@code ;new} tests whether the object is new. 658 * @param e MapCSS environment 659 * @return {@code true} if the object is new 660 * @see IPrimitive#isNew() 661 */ 662 static boolean _new(Environment e) { // NO_UCD (unused code) 663 return e.osm.isNew(); 664 } 665 666 /** 667 * {@code :connection} tests whether the object is a connection node. 668 * @param e MapCSS environment 669 * @return {@code true} if the object is a connection node 670 * @see Node#isConnectionNode() 671 */ 672 static boolean connection(Environment e) { // NO_UCD (unused code) 673 return e.osm instanceof INode && e.osm.getDataSet() != null && ((INode) e.osm).isConnectionNode(); 674 } 675 676 /** 677 * {@code :tagged} tests whether the object is tagged. 678 * @param e MapCSS environment 679 * @return {@code true} if the object is tagged 680 * @see IPrimitive#isTagged() 681 */ 682 static boolean tagged(Environment e) { // NO_UCD (unused code) 683 return e.osm.isTagged(); 684 } 685 686 /** 687 * {@code :same-tags} tests whether the object has the same tags as its child/parent. 688 * @param e MapCSS environment 689 * @return {@code true} if the object has the same tags as its child/parent 690 * @see IPrimitive#hasSameInterestingTags(IPrimitive) 691 */ 692 static boolean sameTags(Environment e) { // NO_UCD (unused code) 693 return e.osm.hasSameInterestingTags(Utils.firstNonNull(e.child, e.parent)); 694 } 695 696 /** 697 * {@code :area-style} tests whether the object has an area style. This is useful for validators. 698 * @param e MapCSS environment 699 * @return {@code true} if the object has an area style 700 * @see ElemStyles#hasAreaElemStyle(IPrimitive, boolean) 701 */ 702 static boolean areaStyle(Environment e) { // NO_UCD (unused code) 703 // only for validator 704 return ElemStyles.hasAreaElemStyle(e.osm, false); 705 } 706 707 /** 708 * {@code unconnected}: tests whether the object is a unconnected node. 709 * @param e MapCSS environment 710 * @return {@code true} if the object is a unconnected node 711 */ 712 static boolean unconnected(Environment e) { // NO_UCD (unused code) 713 return e.osm instanceof Node && ((Node) e.osm).getParentWays().isEmpty(); 714 } 715 716 /** 717 * {@code righthandtraffic} checks if there is right-hand traffic at the current location. 718 * @param e MapCSS environment 719 * @return {@code true} if there is right-hand traffic at the current location 720 * @see Functions#is_right_hand_traffic(Environment) 721 */ 722 static boolean righthandtraffic(Environment e) { // NO_UCD (unused code) 723 return Functions.is_right_hand_traffic(e); 724 } 725 726 /** 727 * {@code clockwise} whether the way is closed and oriented clockwise, 728 * or non-closed and the 1st, 2nd and last node are in clockwise order. 729 * @param e MapCSS environment 730 * @return {@code true} if the way clockwise 731 * @see Functions#is_clockwise(Environment) 732 */ 733 static boolean clockwise(Environment e) { // NO_UCD (unused code) 734 return Functions.is_clockwise(e); 735 } 736 737 /** 738 * {@code anticlockwise} whether the way is closed and oriented anticlockwise, 739 * or non-closed and the 1st, 2nd and last node are in anticlockwise order. 740 * @param e MapCSS environment 741 * @return {@code true} if the way clockwise 742 * @see Functions#is_anticlockwise(Environment) 743 */ 744 static boolean anticlockwise(Environment e) { // NO_UCD (unused code) 745 return Functions.is_anticlockwise(e); 746 } 747 748 /** 749 * {@code unclosed-multipolygon} tests whether the object is an unclosed multipolygon. 750 * @param e MapCSS environment 751 * @return {@code true} if the object is an unclosed multipolygon 752 */ 753 static boolean unclosed_multipolygon(Environment e) { // NO_UCD (unused code) 754 return e.osm instanceof Relation && ((Relation) e.osm).isMultipolygon() && 755 !e.osm.isIncomplete() && !((Relation) e.osm).hasIncompleteMembers() && 756 !MultipolygonCache.getInstance().get((Relation) e.osm).getOpenEnds().isEmpty(); 757 } 758 759 private static final Predicate<OsmPrimitive> IN_DOWNLOADED_AREA = new InDataSourceArea(false); 760 761 /** 762 * {@code in-downloaded-area} tests whether the object is within source area ("downloaded area"). 763 * @param e MapCSS environment 764 * @return {@code true} if the object is within source area ("downloaded area") 765 * @see InDataSourceArea 766 */ 767 static boolean inDownloadedArea(Environment e) { // NO_UCD (unused code) 768 return e.osm instanceof OsmPrimitive && IN_DOWNLOADED_AREA.test((OsmPrimitive) e.osm); 769 } 770 771 static boolean completely_downloaded(Environment e) { // NO_UCD (unused code) 772 if (e.osm instanceof IRelation<?>) { 773 return !((IRelation<?>) e.osm).hasIncompleteMembers(); 774 } else { 775 return true; 776 } 777 } 778 779 static boolean closed2(Environment e) { // NO_UCD (unused code) 780 if (e.osm instanceof IWay<?> && ((IWay<?>) e.osm).isClosed()) 781 return true; 782 if (e.osm instanceof Relation && ((Relation) e.osm).isMultipolygon()) { 783 Multipolygon multipolygon = MultipolygonCache.getInstance().get((Relation) e.osm); 784 return multipolygon != null && multipolygon.getOpenEnds().isEmpty(); 785 } 786 return false; 787 } 788 789 static boolean selected(Environment e) { // NO_UCD (unused code) 790 if (e.mc != null) { 791 e.mc.getCascade(e.layer).setDefaultSelectedHandling(false); 792 } 793 return e.osm.isSelected(); 794 } 795 } 796 797 /** 798 * Pseudo class condition. 799 */ 800 public static class PseudoClassCondition implements Condition { 801 802 final Method method; 803 final boolean not; 804 805 protected PseudoClassCondition(Method method, boolean not) { 806 this.method = method; 807 this.not = not; 808 } 809 810 /** 811 * Create a new pseudo class condition 812 * @param id The id of the pseudo class 813 * @param not <code>true</code> to invert the condition 814 * @param context The context the class is found in. 815 * @return The new condition 816 */ 817 public static PseudoClassCondition createPseudoClassCondition(String id, boolean not, Context context) { 818 CheckParameterUtil.ensureThat(!"sameTags".equals(id) || Context.LINK == context, "sameTags only supported in LINK context"); 819 if ("open_end".equals(id)) { 820 return new OpenEndPseudoClassCondition(not); 821 } 822 final Method method = getMethod(id); 823 if (method != null) { 824 return new PseudoClassCondition(method, not); 825 } 826 throw new MapCSSException("Invalid pseudo class specified: " + id); 827 } 828 829 protected static Method getMethod(String id) { 830 String cleanId = id.replaceAll("-|_", ""); 831 for (Method method : PseudoClasses.class.getDeclaredMethods()) { 832 // for backwards compatibility, consider :sameTags == :same-tags == :same_tags (#11150) 833 final String methodName = method.getName().replaceAll("-|_", ""); 834 if (methodName.equalsIgnoreCase(cleanId)) { 835 return method; 836 } 837 } 838 return null; 839 } 840 841 @Override 842 public boolean applies(Environment e) { 843 try { 844 return not ^ (Boolean) method.invoke(null, e); 845 } catch (ReflectiveOperationException ex) { 846 throw new JosmRuntimeException(ex); 847 } 848 } 849 850 @Override 851 public String toString() { 852 return (not ? "!" : "") + ':' + method.getName(); 853 } 854 } 855 856 /** 857 * Open end pseudo class condition. 858 */ 859 public static class OpenEndPseudoClassCondition extends PseudoClassCondition { 860 /** 861 * Constructs a new {@code OpenEndPseudoClassCondition}. 862 * @param not negation or not 863 */ 864 public OpenEndPseudoClassCondition(boolean not) { 865 super(null, not); 866 } 867 868 @Override 869 public boolean applies(Environment e) { 870 return true; 871 } 872 } 873 874 /** 875 * A condition that is fulfilled whenever the expression is evaluated to be true. 876 */ 877 public static class ExpressionCondition implements Condition { 878 879 final Expression e; 880 881 /** 882 * Constructs a new {@code ExpressionFactory} 883 * @param e expression 884 */ 885 public ExpressionCondition(Expression e) { 886 this.e = e; 887 } 888 889 /** 890 * Returns the expression. 891 * @return the expression 892 * @since 14484 893 */ 894 public final Expression getExpression() { 895 return e; 896 } 897 898 @Override 899 public boolean applies(Environment env) { 900 Boolean b = Cascade.convertTo(e.evaluate(env), Boolean.class); 901 return b != null && b; 902 } 903 904 @Override 905 public String toString() { 906 return '[' + e.toString() + ']'; 907 } 908 } 909}