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