2 * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/eplv10.html
8 package org.opendaylight.yangtools.yang.parser.impl;
10 import static com.google.common.base.Preconditions.checkState;
12 import com.google.common.base.CharMatcher;
13 import com.google.common.base.Optional;
14 import com.google.common.base.Splitter;
15 import com.google.common.collect.Lists;
17 import java.math.BigDecimal;
18 import java.math.BigInteger;
20 import java.util.ArrayList;
21 import java.util.Collections;
22 import java.util.Date;
23 import java.util.Iterator;
24 import java.util.List;
25 import java.util.Stack;
27 import org.antlr.v4.runtime.ParserRuleContext;
28 import org.antlr.v4.runtime.tree.ParseTree;
29 import org.antlr.v4.runtime.tree.TerminalNode;
30 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser;
31 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Argument_stmtContext;
32 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Base_stmtContext;
33 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Bit_stmtContext;
34 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Bits_specificationContext;
35 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Config_argContext;
36 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Config_stmtContext;
37 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Decimal64_specificationContext;
38 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Default_stmtContext;
39 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Description_stmtContext;
40 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Enum_specificationContext;
41 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Enum_stmtContext;
42 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Error_app_tag_stmtContext;
43 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Error_message_stmtContext;
44 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Fraction_digits_stmtContext;
45 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Identityref_specificationContext;
46 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Instance_identifier_specificationContext;
47 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Key_stmtContext;
48 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Leafref_specificationContext;
49 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Length_stmtContext;
50 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Mandatory_argContext;
51 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Mandatory_stmtContext;
52 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Max_elements_stmtContext;
53 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Max_value_argContext;
54 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Min_elements_stmtContext;
55 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Min_value_argContext;
56 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Module_stmtContext;
57 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Must_stmtContext;
58 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Numerical_restrictionsContext;
59 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Ordered_by_argContext;
60 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Ordered_by_stmtContext;
61 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Path_stmtContext;
62 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Pattern_stmtContext;
63 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Position_stmtContext;
64 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Presence_stmtContext;
65 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Range_stmtContext;
66 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Reference_stmtContext;
67 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Refine_anyxml_stmtsContext;
68 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Refine_choice_stmtsContext;
69 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Refine_container_stmtsContext;
70 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Refine_leaf_list_stmtsContext;
71 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Refine_leaf_stmtsContext;
72 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Refine_list_stmtsContext;
73 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Refine_pomContext;
74 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Refine_stmtContext;
75 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Require_instance_argContext;
76 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Require_instance_stmtContext;
77 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Status_argContext;
78 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Status_stmtContext;
79 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.StringContext;
80 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.String_restrictionsContext;
81 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Type_body_stmtsContext;
82 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Units_stmtContext;
83 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Value_stmtContext;
84 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.When_stmtContext;
85 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Yin_element_argContext;
86 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.Yin_element_stmtContext;
87 import org.opendaylight.yangtools.yang.common.QName;
88 import org.opendaylight.yangtools.yang.model.api.MustDefinition;
89 import org.opendaylight.yangtools.yang.model.api.RevisionAwareXPath;
90 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
91 import org.opendaylight.yangtools.yang.model.api.Status;
92 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
93 import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
94 import org.opendaylight.yangtools.yang.model.api.type.BinaryTypeDefinition;
95 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition;
96 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition.Bit;
97 import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition;
98 import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition.EnumPair;
99 import org.opendaylight.yangtools.yang.model.api.type.IntegerTypeDefinition;
100 import org.opendaylight.yangtools.yang.model.api.type.LengthConstraint;
101 import org.opendaylight.yangtools.yang.model.api.type.PatternConstraint;
102 import org.opendaylight.yangtools.yang.model.api.type.RangeConstraint;
103 import org.opendaylight.yangtools.yang.model.api.type.StringTypeDefinition;
104 import org.opendaylight.yangtools.yang.model.api.type.UnsignedIntegerTypeDefinition;
105 import org.opendaylight.yangtools.yang.model.util.BaseConstraints;
106 import org.opendaylight.yangtools.yang.model.util.BaseTypes;
107 import org.opendaylight.yangtools.yang.model.util.BinaryType;
108 import org.opendaylight.yangtools.yang.model.util.BitImpl;
109 import org.opendaylight.yangtools.yang.model.util.BitsType;
110 import org.opendaylight.yangtools.yang.model.util.Decimal64;
111 import org.opendaylight.yangtools.yang.model.util.EnumerationType;
112 import org.opendaylight.yangtools.yang.model.util.ExtendedType;
113 import org.opendaylight.yangtools.yang.model.util.InstanceIdentifier;
114 import org.opendaylight.yangtools.yang.model.util.Int16;
115 import org.opendaylight.yangtools.yang.model.util.Int32;
116 import org.opendaylight.yangtools.yang.model.util.Int64;
117 import org.opendaylight.yangtools.yang.model.util.Int8;
118 import org.opendaylight.yangtools.yang.model.util.Leafref;
119 import org.opendaylight.yangtools.yang.model.util.MustDefinitionImpl;
120 import org.opendaylight.yangtools.yang.model.util.RevisionAwareXPathImpl;
121 import org.opendaylight.yangtools.yang.model.util.StringType;
122 import org.opendaylight.yangtools.yang.model.util.Uint16;
123 import org.opendaylight.yangtools.yang.model.util.Uint32;
124 import org.opendaylight.yangtools.yang.model.util.Uint64;
125 import org.opendaylight.yangtools.yang.model.util.Uint8;
126 import org.opendaylight.yangtools.yang.model.util.UnknownType;
127 import org.opendaylight.yangtools.yang.parser.builder.api.Builder;
128 import org.opendaylight.yangtools.yang.parser.builder.api.ConstraintsBuilder;
129 import org.opendaylight.yangtools.yang.parser.builder.api.DataSchemaNodeBuilder;
130 import org.opendaylight.yangtools.yang.parser.builder.api.RefineBuilder;
131 import org.opendaylight.yangtools.yang.parser.builder.api.SchemaNodeBuilder;
132 import org.opendaylight.yangtools.yang.parser.builder.api.TypeDefinitionBuilder;
133 import org.opendaylight.yangtools.yang.parser.builder.impl.ChoiceCaseBuilder;
134 import org.opendaylight.yangtools.yang.parser.builder.impl.RefineHolderImpl;
135 import org.opendaylight.yangtools.yang.parser.builder.impl.UnionTypeBuilder;
136 import org.opendaylight.yangtools.yang.parser.util.TypeConstraints;
137 import org.opendaylight.yangtools.yang.parser.util.UnknownBoundaryNumber;
138 import org.opendaylight.yangtools.yang.parser.util.YangParseException;
139 import org.slf4j.Logger;
140 import org.slf4j.LoggerFactory;
142 public final class ParserListenerUtils {
143 private static final Logger LOG = LoggerFactory.getLogger(ParserListenerUtils.class);
144 private static final Splitter KEYDEF_SPLITTER = Splitter.on(' ').omitEmptyStrings();
145 private static final Splitter PIPE_SPLITTER = Splitter.on('|').trimResults();
146 private static final Splitter DOT_DOT_SPLITTER = Splitter.on("..").trimResults();
147 private static final CharMatcher QUOTE_MATCHER = CharMatcher.is('"');
149 private ParserListenerUtils() {
153 * Parse given tree and get first string value.
157 * @return first string value from given tree
159 public static String stringFromNode(final ParseTree treeNode) {
161 for (int i = 0; i < treeNode.getChildCount(); ++i) {
162 if (treeNode.getChild(i) instanceof StringContext) {
163 final StringContext context = (StringContext) treeNode.getChild(i);
164 if (context != null) {
165 return stringFromStringContext(context);
172 private static String stringFromStringContext(final StringContext context) {
173 StringBuilder sb = new StringBuilder();
174 for (TerminalNode stringNode : context.STRING()) {
175 final String str = stringNode.getText();
176 final int i = str.indexOf('"');
184 * The string contains quotes, so we have to tread carefully.
186 * FIXME: I think this code is broken, but proving that requires
187 * making sense of the parser/lexer and how they tie into
188 * this method. Especially what format 'str' can have and
189 * how we need to handle it. The original check was:
191 * if (!(result.startsWith("\"")) && result.endsWith("\""))
193 * Looking at the parentheses it is hard to justify the
194 * pair right after negation -- the intent may have been
195 * to negate the entire expression.
197 if (i != 0 && str.endsWith("\"")) {
198 LOG.error("Syntax error in module {} at line {}: missing '\"'.", getParentModule(context),
199 context.getStart().getLine());
201 sb.append(QUOTE_MATCHER.removeFrom(str));
204 return sb.toString();
207 private static String getParentModule(final ParseTree ctx) {
208 ParseTree current = ctx;
209 while (current != null && !(current instanceof Module_stmtContext)) {
210 current = current.getParent();
212 if (current != null) {
213 Module_stmtContext module = (Module_stmtContext) current;
214 for (int i = 0; i < module.getChildCount(); i++) {
215 if (module.getChild(i) instanceof StringContext) {
216 final StringContext str = (StringContext) module.getChild(i);
217 return str.getChild(0).getText();
225 * Parse 'description', 'reference' and 'status' statements and fill in
231 * builder to fill in with parsed statements
233 public static void parseSchemaNodeArgs(final ParseTree ctx, final SchemaNodeBuilder builder) {
234 for (int i = 0; i < ctx.getChildCount(); i++) {
235 final ParseTree child = ctx.getChild(i);
236 if (child instanceof Description_stmtContext) {
237 final String desc = stringFromNode(child);
238 builder.setDescription(desc);
239 } else if (child instanceof Reference_stmtContext) {
240 final String ref = stringFromNode(child);
241 builder.setReference(ref);
242 } else if (child instanceof Status_stmtContext) {
243 final Status status = parseStatus((Status_stmtContext) child);
244 builder.setStatus(status);
250 * Parse given context and return its value;
254 * @return value parsed from context
256 public static Status parseStatus(final Status_stmtContext ctx) {
257 Status result = null;
258 for (int i = 0; i < ctx.getChildCount(); i++) {
259 ParseTree statusArg = ctx.getChild(i);
260 if (statusArg instanceof Status_argContext) {
261 String statusArgStr = stringFromNode(statusArg);
262 switch (statusArgStr) {
264 result = Status.CURRENT;
267 result = Status.DEPRECATED;
270 result = Status.OBSOLETE;
273 LOG.warn("Invalid 'status' statement: " + statusArgStr);
281 * Parse given tree and returns units statement as string.
285 * @return value of units statement as string or null if there is no units
288 public static String parseUnits(final ParseTree ctx) {
290 for (int i = 0; i < ctx.getChildCount(); i++) {
291 ParseTree child = ctx.getChild(i);
292 if (child instanceof Units_stmtContext) {
293 units = stringFromNode(child);
301 * Parse given tree and returns default statement as string.
305 * @return value of default statement as string or null if there is no
308 public static String parseDefault(final ParseTree ctx) {
309 String defaultValue = null;
310 for (int i = 0; i < ctx.getChildCount(); i++) {
311 ParseTree child = ctx.getChild(i);
312 if (child instanceof Default_stmtContext) {
313 defaultValue = stringFromNode(child);
321 * Create SchemaPath from actualPath and new node name.
324 * current position in model
325 * @return SchemaPath object
327 public static SchemaPath createActualSchemaPath(final Stack<QName> actualPath) {
328 return SchemaPath.create(actualPath, true);
332 * Create java.util.List of key node names.
335 * Key_stmtContext context
336 * @return YANG list key as java.util.List of key node names
338 public static List<String> createListKey(final Key_stmtContext ctx) {
339 String keyDefinition = stringFromNode(ctx);
340 return Lists.newArrayList(KEYDEF_SPLITTER.split(keyDefinition));
344 * Parse given type body of enumeration statement.
347 * type body context to parse
349 * actual position in YANG model
351 * current module name
352 * @return List of EnumPair object parsed from given context
354 private static List<EnumTypeDefinition.EnumPair> getEnumConstants(final Type_body_stmtsContext ctx,
355 final Stack<QName> path, final String moduleName) {
356 List<EnumTypeDefinition.EnumPair> enumConstants = new ArrayList<>();
358 for (int i = 0; i < ctx.getChildCount(); i++) {
359 ParseTree enumSpecChild = ctx.getChild(i);
360 if (enumSpecChild instanceof Enum_specificationContext) {
361 int highestValue = -1;
362 for (int j = 0; j < enumSpecChild.getChildCount(); j++) {
363 ParseTree enumChild = enumSpecChild.getChild(j);
364 if (enumChild instanceof Enum_stmtContext) {
365 EnumPair enumPair = createEnumPair((Enum_stmtContext) enumChild, highestValue, path, moduleName);
366 if (enumPair.getValue() > highestValue) {
367 highestValue = enumPair.getValue();
369 enumConstants.add(enumPair);
374 return enumConstants;
378 * Parse enum statement context
381 * enum statement context
382 * @param highestValue
383 * current highest value in enumeration
385 * actual position in YANG model
387 * current module name
388 * @return EnumPair object parsed from given context
390 private static EnumTypeDefinition.EnumPair createEnumPair(final Enum_stmtContext ctx, final int highestValue,
391 final Stack<QName> actualPath, final String moduleName) {
392 final String name = stringFromNode(ctx);
393 SchemaPath path = createTypePath(actualPath, name);
394 Integer value = null;
396 String description = null;
397 String reference = null;
398 Status status = null;
400 for (int i = 0; i < ctx.getChildCount(); i++) {
401 ParseTree child = ctx.getChild(i);
402 if (child instanceof Value_stmtContext) {
403 String valueStr = stringFromNode(child);
404 value = Integer.valueOf(valueStr);
405 } else if (child instanceof Description_stmtContext) {
406 description = stringFromNode(child);
407 } else if (child instanceof Reference_stmtContext) {
408 reference = stringFromNode(child);
409 } else if (child instanceof Status_stmtContext) {
410 status = parseStatus((Status_stmtContext) child);
415 value = highestValue + 1;
417 if (value < -2147483648 || value > 2147483647) {
418 throw new YangParseException(moduleName, ctx.getStart().getLine(), "Error on enum '" + name
419 + "': the enum value MUST be in the range from -2147483648 to 2147483647, but was: " + value);
422 EnumPairImpl result = new EnumPairImpl();
423 result.qname = path.getPathTowardsRoot().iterator().next();
425 result.description = description;
426 result.reference = reference;
427 result.status = status;
429 result.value = value;
434 * Internal implementation of EnumPair.
436 private static class EnumPairImpl implements EnumTypeDefinition.EnumPair {
438 private SchemaPath path;
439 private String description;
440 private String reference;
441 private Status status;
442 private final List<UnknownSchemaNode> unknownNodes = Collections.emptyList();
444 private Integer value;
447 public QName getQName() {
452 public SchemaPath getPath() {
457 public String getDescription() {
462 public String getReference() {
467 public Status getStatus() {
472 public List<UnknownSchemaNode> getUnknownSchemaNodes() {
477 public String getName() {
482 public Integer getValue() {
487 public int hashCode() {
488 final int prime = 31;
490 result = prime * result + ((qname == null) ? 0 : qname.hashCode());
491 result = prime * result + ((path == null) ? 0 : path.hashCode());
492 result = prime * result + ((unknownNodes == null) ? 0 : unknownNodes.hashCode());
493 result = prime * result + ((name == null) ? 0 : name.hashCode());
494 result = prime * result + ((value == null) ? 0 : value.hashCode());
499 public boolean equals(final Object obj) {
506 if (getClass() != obj.getClass()) {
509 EnumPairImpl other = (EnumPairImpl) obj;
511 if (other.qname != null) {
514 } else if (!qname.equals(other.qname)) {
518 if (other.path != null) {
521 } else if (!path.equals(other.path)) {
524 if (unknownNodes == null) {
525 if (other.unknownNodes != null) {
528 } else if (!unknownNodes.equals(other.unknownNodes)) {
532 if (other.name != null) {
535 } else if (!name.equals(other.name)) {
539 if (other.value != null) {
542 } else if (!value.equals(other.value)) {
549 public String toString() {
550 return EnumTypeDefinition.EnumPair.class.getSimpleName() + "[name=" + name + ", value=" + value + "]";
555 * Get and parse range from given type body context.
558 * type body context to parse
560 * name of current module
561 * @return List of RangeConstraint created from this context
563 private static List<RangeConstraint> getRangeConstraints(final Type_body_stmtsContext ctx, final String moduleName) {
564 List<RangeConstraint> rangeConstraints = Collections.emptyList();
565 outer: for (int i = 0; i < ctx.getChildCount(); i++) {
566 ParseTree numRestrChild = ctx.getChild(i);
568 if (numRestrChild instanceof Numerical_restrictionsContext) {
569 for (int j = 0; j < numRestrChild.getChildCount(); j++) {
570 ParseTree rangeChild = numRestrChild.getChild(j);
571 if (rangeChild instanceof Range_stmtContext) {
572 rangeConstraints = parseRangeConstraints((Range_stmtContext) rangeChild, moduleName);
578 if (numRestrChild instanceof Decimal64_specificationContext) {
579 for (int j = 0; j < numRestrChild.getChildCount(); j++) {
580 ParseTree decRestr = numRestrChild.getChild(j);
581 if (decRestr instanceof Numerical_restrictionsContext) {
582 for (int k = 0; k < decRestr.getChildCount(); k++) {
583 ParseTree rangeChild = decRestr.getChild(k);
584 if (rangeChild instanceof Range_stmtContext) {
585 rangeConstraints = parseRangeConstraints((Range_stmtContext) rangeChild, moduleName);
594 return rangeConstraints;
598 * Parse given range context.
601 * range context to parse
603 * name of current module
604 * @return List of RangeConstraints parsed from this context
606 private static List<RangeConstraint> parseRangeConstraints(final Range_stmtContext ctx, final String moduleName) {
607 final int line = ctx.getStart().getLine();
608 Optional<String> description = Optional.absent();
609 Optional<String> reference = Optional.absent();
611 for (int i = 0; i < ctx.getChildCount(); i++) {
612 ParseTree child = ctx.getChild(i);
613 if (child instanceof Description_stmtContext) {
614 description = Optional.fromNullable(stringFromNode(child));
615 } else if (child instanceof Reference_stmtContext) {
616 reference = Optional.fromNullable(stringFromNode(child));
620 List<RangeConstraint> rangeConstraints = new ArrayList<>();
621 for (String def : PIPE_SPLITTER.split(stringFromNode(ctx))) {
622 final Iterator<String> split = DOT_DOT_SPLITTER.split(def).iterator();
623 final Number min = parseNumberConstraintValue(split.next(), moduleName, line);
626 if (split.hasNext()) {
627 max = parseNumberConstraintValue(split.next(), moduleName, line);
628 if (split.hasNext()) {
629 throw new YangParseException(moduleName, ctx.getStart().getLine(), "Malformed length constraint \"" + def + "\".");
635 RangeConstraint range = BaseConstraints.newRangeConstraint(min, max, description, reference);
636 rangeConstraints.add(range);
639 return rangeConstraints;
643 * Get and parse length from given type body context.
646 * type body context to parse
648 * name of current module
649 * @return List of LengthConstraint created from this context
651 private static List<LengthConstraint> getLengthConstraints(final Type_body_stmtsContext ctx, final String moduleName) {
652 List<LengthConstraint> lengthConstraints = Collections.emptyList();
653 outer: for (int i = 0; i < ctx.getChildCount(); i++) {
654 ParseTree stringRestrChild = ctx.getChild(i);
655 if (stringRestrChild instanceof String_restrictionsContext) {
656 for (int j = 0; j < stringRestrChild.getChildCount(); j++) {
657 ParseTree lengthChild = stringRestrChild.getChild(j);
658 if (lengthChild instanceof Length_stmtContext) {
659 lengthConstraints = parseLengthConstraints((Length_stmtContext) lengthChild, moduleName);
665 return lengthConstraints;
669 * Parse given length context.
672 * length context to parse
674 * name of current module
675 * @return List of LengthConstraints parsed from this context
677 private static List<LengthConstraint> parseLengthConstraints(final Length_stmtContext ctx, final String moduleName) {
678 final int line = ctx.getStart().getLine();
679 Optional<String> description = Optional.absent();
680 Optional<String> reference = Optional.absent();
682 for (int i = 0; i < ctx.getChildCount(); i++) {
683 ParseTree child = ctx.getChild(i);
684 if (child instanceof Description_stmtContext) {
685 description = Optional.fromNullable(stringFromNode(child));
686 } else if (child instanceof Reference_stmtContext) {
687 reference = Optional.fromNullable(stringFromNode(child));
691 List<LengthConstraint> lengthConstraints = new ArrayList<>();
692 for (String def : PIPE_SPLITTER.split(stringFromNode(ctx))) {
693 final Iterator<String> split = DOT_DOT_SPLITTER.split(def).iterator();
694 final Number min = parseNumberConstraintValue(split.next(), moduleName, line);
697 if (split.hasNext()) {
698 max = parseNumberConstraintValue(split.next(), moduleName, line);
699 if (split.hasNext()) {
700 throw new YangParseException(moduleName, ctx.getStart().getLine(), "Malformed length constraint \"" + def + "\".");
706 LengthConstraint range = BaseConstraints.newLengthConstraint(min, max, description, reference);
707 lengthConstraints.add(range);
710 return lengthConstraints;
717 * name of current module
719 * current line in module
720 * @return wrapper object of primitive java type or UnknownBoundaryNumber if
721 * type is one of special YANG values 'min' or 'max'
723 private static Number parseNumberConstraintValue(final String value, final String moduleName, final int line) {
725 if ("min".equals(value) || "max".equals(value)) {
726 result = new UnknownBoundaryNumber(value);
729 if (value.indexOf('.') != -1) {
730 result = new BigDecimal(value);
732 result = new BigInteger(value);
734 } catch (NumberFormatException e) {
735 throw new YangParseException(moduleName, line, "Unable to parse range value '" + value + "'.", e);
742 * Parse type body and return pattern constraints.
746 * @return list of pattern constraints
748 private static List<PatternConstraint> getPatternConstraint(final Type_body_stmtsContext ctx) {
749 List<PatternConstraint> patterns = new ArrayList<>();
751 for (int i = 0; i < ctx.getChildCount(); i++) {
752 ParseTree stringRestrChild = ctx.getChild(i);
753 if (stringRestrChild instanceof String_restrictionsContext) {
754 for (int j = 0; j < stringRestrChild.getChildCount(); j++) {
755 ParseTree lengthChild = stringRestrChild.getChild(j);
756 if (lengthChild instanceof Pattern_stmtContext) {
757 patterns.add(parsePatternConstraint((Pattern_stmtContext) lengthChild));
766 * Internal helper method.
770 * @return PatternConstraint object
772 private static PatternConstraint parsePatternConstraint(final Pattern_stmtContext ctx) {
773 String description = null;
774 String reference = null;
775 for (int i = 0; i < ctx.getChildCount(); i++) {
776 ParseTree child = ctx.getChild(i);
777 if (child instanceof Description_stmtContext) {
778 description = stringFromNode(child);
779 } else if (child instanceof Reference_stmtContext) {
780 reference = stringFromNode(child);
783 String pattern = parsePatternString(ctx);
784 return BaseConstraints.patternConstraint(pattern, description, reference);
788 * Parse given context and return pattern value.
792 * @return pattern value as String
794 private static String parsePatternString(final Pattern_stmtContext ctx) {
795 StringBuilder result = new StringBuilder();
796 for (int i = 0; i < ctx.getChildCount(); ++i) {
797 ParseTree child = ctx.getChild(i);
798 if (child instanceof StringContext) {
799 for (int j = 0; j < child.getChildCount(); j++) {
801 String patternToken = child.getChild(j).getText();
802 result.append(patternToken.substring(1, patternToken.length() - 1));
807 return result.toString();
811 * Get fraction digits value from type body.
814 * type body context to parse
816 * name of current module
817 * @return 'fraction-digits' value if present in given context, null
820 private static Integer getFractionDigits(final Type_body_stmtsContext ctx, final String moduleName) {
821 Integer result = null;
822 for (int i = 0; i < ctx.getChildCount(); i++) {
823 ParseTree dec64specChild = ctx.getChild(i);
824 if (dec64specChild instanceof Decimal64_specificationContext) {
825 result = parseFractionDigits((Decimal64_specificationContext) dec64specChild, moduleName);
832 * Parse decimal64 fraction-digits value.
837 * name of current module
838 * @return fraction-digits value as Integer
840 private static Integer parseFractionDigits(final Decimal64_specificationContext ctx, final String moduleName) {
841 Integer result = null;
842 for (int i = 0; i < ctx.getChildCount(); i++) {
843 ParseTree fdChild = ctx.getChild(i);
844 if (fdChild instanceof Fraction_digits_stmtContext) {
845 String value = stringFromNode(fdChild);
847 result = Integer.valueOf(value);
848 } catch (NumberFormatException e) {
849 throw new YangParseException(moduleName, ctx.getStart().getLine(),
850 "Unable to parse fraction digits value '" + value + "'.", e);
858 * Internal helper method for parsing bit statements from given type body
862 * type body context to parse
864 * current position in YANG model
866 * current module name
867 * @return List of Bit objects created from this context
869 private static List<BitsTypeDefinition.Bit> getBits(final Type_body_stmtsContext ctx, final Stack<QName> actualPath,
870 final String moduleName) {
871 final List<BitsTypeDefinition.Bit> bits = new ArrayList<>();
872 for (int j = 0; j < ctx.getChildCount(); j++) {
873 ParseTree bitsSpecChild = ctx.getChild(j);
874 if (bitsSpecChild instanceof Bits_specificationContext) {
875 long highestPosition = -1;
876 for (int k = 0; k < bitsSpecChild.getChildCount(); k++) {
877 ParseTree bitChild = bitsSpecChild.getChild(k);
878 if (bitChild instanceof Bit_stmtContext) {
879 Bit bit = parseBit((Bit_stmtContext) bitChild, highestPosition, actualPath, moduleName);
880 if (bit.getPosition() > highestPosition) {
881 highestPosition = bit.getPosition();
892 * Internal helper method for parsing bit context.
895 * bit statement context to parse
896 * @param highestPosition
897 * current highest position in bits type
899 * current position in YANG model
901 * current module name
902 * @return Bit object parsed from this context
904 private static BitsTypeDefinition.Bit parseBit(final Bit_stmtContext ctx, final long highestPosition,
905 final Stack<QName> actualPath, final String moduleName) {
906 String name = stringFromNode(ctx);
907 Long position = null;
909 String description = null;
910 String reference = null;
911 Status status = Status.CURRENT;
913 SchemaPath schemaPath = createBaseTypePath(actualPath, name);
915 for (int i = 0; i < ctx.getChildCount(); i++) {
916 ParseTree child = ctx.getChild(i);
917 if (child instanceof Position_stmtContext) {
918 String positionStr = stringFromNode(child);
919 position = Long.valueOf(positionStr);
920 } else if (child instanceof Description_stmtContext) {
921 description = stringFromNode(child);
922 } else if (child instanceof Reference_stmtContext) {
923 reference = stringFromNode(child);
924 } else if (child instanceof Status_stmtContext) {
925 status = parseStatus((Status_stmtContext) child);
929 if (position == null) {
930 position = highestPosition + 1;
932 if (position < 0 || position > 4294967295L) {
933 throw new YangParseException(moduleName, ctx.getStart().getLine(), "Error on bit '" + name
934 + "': the position value MUST be in the range 0 to 4294967295");
937 final List<UnknownSchemaNode> unknownNodes = Collections.emptyList();
938 return new BitImpl(position, schemaPath.getPathTowardsRoot().iterator().next(), schemaPath,
939 description, reference, status, unknownNodes);
943 * Parse 'ordered-by' statement.
945 * The 'ordered-by' statement defines whether the order of entries within a
946 * list are determined by the user or the system. The argument is one of the
947 * strings "system" or "user". If not present, order defaults to "system".
950 * Ordered_by_stmtContext
951 * @return true, if ordered-by contains value 'user', false otherwise
953 public static boolean parseUserOrdered(final Ordered_by_stmtContext ctx) {
954 boolean result = false;
955 for (int j = 0; j < ctx.getChildCount(); j++) {
956 ParseTree orderArg = ctx.getChild(j);
957 if (orderArg instanceof Ordered_by_argContext) {
958 String orderStr = stringFromNode(orderArg);
967 LOG.warn("Invalid 'ordered-by' statement.");
975 * Get config statement from given context. If there is no config statement,
976 * return config value of parent
983 * name of current module
985 * line in current module
986 * @return config statement parsed from given context
988 public static boolean getConfig(final ParseTree ctx, final Builder node, final String moduleName, final int line) {
990 // parse configuration statement
991 Boolean config = null;
992 for (int i = 0; i < ctx.getChildCount(); i++) {
993 ParseTree child = ctx.getChild(i);
994 if (child instanceof Config_stmtContext) {
995 config = parseConfig((Config_stmtContext) child, moduleName);
1000 // If 'config' is not specified, the default is the same as the parent
1001 // schema node's 'config' value
1002 boolean parentConfig = getParentConfig(node);
1003 if (config == null) {
1004 result = parentConfig;
1006 // Check: if a node has 'config' set to 'false', no node underneath
1007 // it can have 'config' set to 'true'
1008 if (!parentConfig && config) {
1009 throw new YangParseException(moduleName, line,
1010 "Can not set 'config' to 'true' if parent node has 'config' set to 'false'");
1018 private static boolean getParentConfig(final Builder node) {
1019 Builder parent = node.getParent();
1022 if (parent instanceof ChoiceCaseBuilder) {
1023 parent = parent.getParent();
1025 if (parent instanceof DataSchemaNodeBuilder) {
1026 config = ((DataSchemaNodeBuilder) parent).isConfiguration();
1034 * Parse config statement.
1037 * config context to parse
1039 * current module name
1040 * @return true if given context contains string 'true', false otherwise
1042 private static Boolean parseConfig(final Config_stmtContext ctx, final String moduleName) {
1043 Boolean result = null;
1045 for (int i = 0; i < ctx.getChildCount(); ++i) {
1046 final ParseTree configContext = ctx.getChild(i);
1047 if (configContext instanceof Config_argContext) {
1048 final String value = stringFromNode(configContext);
1057 throw new YangParseException(moduleName, ctx.getStart().getLine(),
1058 "Failed to parse 'config' statement value: '" + value + "'.");
1067 * Parse type body and create UnknownType definition.
1069 * @param typedefQName
1070 * qname of current type
1074 * actual path in model
1082 * current node parent
1083 * @return UnknownType object with constraints from parsed type body
1085 public static TypeDefinition<?> parseUnknownTypeWithBody(final QName typedefQName,
1086 final Type_body_stmtsContext ctx, final Stack<QName> actualPath, final URI namespace, final Date revision,
1087 final String prefix, final Builder parent) {
1088 String moduleName = parent.getModuleName();
1089 String typeName = typedefQName.getLocalName();
1091 UnknownType.Builder unknownType = new UnknownType.Builder(typedefQName);
1094 List<RangeConstraint> rangeStatements = getRangeConstraints(ctx, moduleName);
1095 List<LengthConstraint> lengthStatements = getLengthConstraints(ctx, moduleName);
1096 List<PatternConstraint> patternStatements = getPatternConstraint(ctx);
1097 Integer fractionDigits = getFractionDigits(ctx, moduleName);
1099 if (parent instanceof TypeDefinitionBuilder) {
1100 TypeDefinitionBuilder typedef = (TypeDefinitionBuilder) parent;
1101 typedef.setRanges(rangeStatements);
1102 typedef.setLengths(lengthStatements);
1103 typedef.setPatterns(patternStatements);
1104 typedef.setFractionDigits(fractionDigits);
1105 return unknownType.build();
1107 TypeDefinition<?> baseType = unknownType.build();
1108 QName qname = new QName(namespace, revision, prefix, typeName);
1109 SchemaPath schemaPath = createTypePath(actualPath, typeName);
1111 ExtendedType.Builder typeBuilder = new ExtendedType.Builder(qname, baseType, null, null, schemaPath);
1112 typeBuilder.ranges(rangeStatements);
1113 typeBuilder.lengths(lengthStatements);
1114 typeBuilder.patterns(patternStatements);
1115 typeBuilder.fractionDigits(fractionDigits);
1117 return typeBuilder.build();
1121 return unknownType.build();
1125 * Create TypeDefinition object based on given type name and type body.
1132 * current path in schema
1141 * @return TypeDefinition object based on parsed values.
1143 public static TypeDefinition<?> parseTypeWithBody(final String typeName, final Type_body_stmtsContext typeBody,
1144 final Stack<QName> actualPath, final URI namespace, final Date revision, final String prefix,
1145 final Builder parent) {
1147 final String moduleName = parent.getModuleName();
1148 final int line = typeBody.getStart().getLine();
1149 TypeDefinition<?> baseType = null;
1151 Integer fractionDigits = getFractionDigits(typeBody, moduleName);
1152 List<LengthConstraint> lengthStatements = getLengthConstraints(typeBody, moduleName);
1153 List<PatternConstraint> patternStatements = getPatternConstraint(typeBody);
1154 List<RangeConstraint> rangeStatements = getRangeConstraints(typeBody, moduleName);
1156 TypeConstraints constraints = new TypeConstraints(moduleName, line);
1157 constraints.addFractionDigits(fractionDigits);
1158 constraints.addLengths(lengthStatements);
1159 constraints.addPatterns(patternStatements);
1160 constraints.addRanges(rangeStatements);
1162 SchemaPath baseTypePath = createBaseTypePath(actualPath, typeName);
1163 SchemaPath extBaseTypePath = createExtendedBaseTypePath(actualPath, namespace, revision, prefix, typeName);
1165 if (parent instanceof TypeDefinitionBuilder && !(parent instanceof UnionTypeBuilder)) {
1166 extBaseTypePath = baseTypePath;
1169 if ("decimal64".equals(typeName)) {
1170 if (rangeStatements.isEmpty()) {
1172 return new Decimal64(baseTypePath, fractionDigits);
1173 } catch(Exception e) {
1174 throw new YangParseException(moduleName, line, e.getMessage());
1177 Decimal64 decimalType = new Decimal64(extBaseTypePath, fractionDigits);
1178 constraints.addRanges(decimalType.getRangeConstraints());
1179 baseType = decimalType;
1180 } else if (typeName.startsWith("int")) {
1181 IntegerTypeDefinition intType = null;
1184 intType = Int8.getInstance();
1187 intType = Int16.getInstance();
1190 intType = Int32.getInstance();
1193 intType = Int64.getInstance();
1196 if (intType == null) {
1197 throw new YangParseException(moduleName, line, "Unknown yang type " + typeName);
1199 constraints.addRanges(intType.getRangeConstraints());
1201 } else if (typeName.startsWith("uint")) {
1202 UnsignedIntegerTypeDefinition uintType = null;
1205 uintType = Uint8.getInstance();
1208 uintType = Uint16.getInstance();
1211 uintType = Uint32.getInstance();
1214 uintType = Uint64.getInstance();
1217 if (uintType == null) {
1218 throw new YangParseException(moduleName, line, "Unknown yang type " + typeName);
1220 constraints.addRanges(uintType.getRangeConstraints());
1221 baseType = uintType;
1222 } else if ("enumeration".equals(typeName)) {
1223 List<EnumTypeDefinition.EnumPair> enumConstants = getEnumConstants(typeBody, actualPath, moduleName);
1224 return EnumerationType.create(baseTypePath, enumConstants, Optional.<EnumPair> absent());
1225 } else if ("string".equals(typeName)) {
1226 StringTypeDefinition stringType = StringType.getInstance();
1227 constraints.addLengths(stringType.getLengthConstraints());
1228 baseType = stringType;
1229 } else if ("bits".equals(typeName)) {
1230 return BitsType.create(baseTypePath, getBits(typeBody, actualPath, moduleName));
1231 } else if ("leafref".equals(typeName)) {
1232 final String path = parseLeafrefPath(typeBody);
1233 final boolean absolute = path.startsWith("/");
1234 RevisionAwareXPath xpath = new RevisionAwareXPathImpl(path, absolute);
1235 return new Leafref(xpath);
1236 } else if ("binary".equals(typeName)) {
1237 BinaryTypeDefinition binaryType = BinaryType.getInstance();
1238 constraints.addLengths(binaryType.getLengthConstraints());
1239 baseType = binaryType;
1240 } else if ("instance-identifier".equals(typeName)) {
1241 return InstanceIdentifier.create(isRequireInstance(typeBody));
1244 if (parent instanceof TypeDefinitionBuilder && !(parent instanceof UnionTypeBuilder)) {
1245 TypeDefinitionBuilder typedef = (TypeDefinitionBuilder) parent;
1246 typedef.setRanges(constraints.getRange());
1247 typedef.setLengths(constraints.getLength());
1248 typedef.setPatterns(constraints.getPatterns());
1249 typedef.setFractionDigits(constraints.getFractionDigits());
1253 List<QName> path = new ArrayList<>(actualPath);
1254 path.add(new QName(namespace, revision, prefix, typeName));
1255 SchemaPath schemaPath = SchemaPath.create(path, true);
1257 QName qname = schemaPath.getPath().get(schemaPath.getPath().size() - 1);
1258 ExtendedType.Builder typeBuilder = new ExtendedType.Builder(qname, baseType, "", "", schemaPath);
1260 typeBuilder.ranges(constraints.getRange());
1261 typeBuilder.lengths(constraints.getLength());
1262 typeBuilder.patterns(constraints.getPatterns());
1263 typeBuilder.fractionDigits(constraints.getFractionDigits());
1265 return typeBuilder.build();
1268 private static SchemaPath createTypePath(final Stack<QName> actual, final String typeName) {
1269 QName last = actual.peek();
1270 QName typeQName = new QName(last.getNamespace(), last.getRevision(), last.getPrefix(), typeName);
1271 List<QName> path = new ArrayList<>(actual);
1272 path.add(typeQName);
1273 return SchemaPath.create(path, true);
1276 private static SchemaPath createBaseTypePath(final Stack<QName> actual, final String typeName) {
1277 List<QName> path = new ArrayList<>(actual);
1278 path.add(BaseTypes.constructQName(typeName));
1279 return SchemaPath.create(path, true);
1282 private static SchemaPath createExtendedBaseTypePath(final Stack<QName> actual, final URI namespace, final Date revision,
1283 final String prefix, final String typeName) {
1284 QName extTypeName = new QName(namespace, revision, prefix, typeName);
1285 QName baseTypeName = BaseTypes.constructQName(typeName);
1286 List<QName> path = new ArrayList<>(actual);
1287 path.add(extTypeName);
1288 path.add(baseTypeName);
1289 return SchemaPath.create(path, true);
1293 * Parse given context and find identityref base value.
1297 * @return identityref base value as String
1299 public static String getIdentityrefBase(final Type_body_stmtsContext ctx) {
1300 String result = null;
1301 outer: for (int i = 0; i < ctx.getChildCount(); i++) {
1302 ParseTree child = ctx.getChild(i);
1303 if (child instanceof Identityref_specificationContext) {
1304 for (int j = 0; j < child.getChildCount(); j++) {
1305 ParseTree baseArg = child.getChild(j);
1306 if (baseArg instanceof Base_stmtContext) {
1307 result = stringFromNode(baseArg);
1317 * Parse type body statement and find require-instance value.
1321 * @return require-instance value
1323 private static boolean isRequireInstance(final Type_body_stmtsContext ctx) {
1324 for (int i = 0; i < ctx.getChildCount(); i++) {
1325 ParseTree child = ctx.getChild(i);
1326 if (child instanceof Instance_identifier_specificationContext) {
1327 for (int j = 0; j < child.getChildCount(); j++) {
1328 ParseTree reqStmt = child.getChild(j);
1329 if (reqStmt instanceof Require_instance_stmtContext) {
1330 for (int k = 0; k < reqStmt.getChildCount(); k++) {
1331 ParseTree reqArg = reqStmt.getChild(k);
1332 if (reqArg instanceof Require_instance_argContext) {
1333 return Boolean.valueOf(stringFromNode(reqArg));
1344 * Parse type body statement and find leafref path.
1348 * @return leafref path as String
1350 private static String parseLeafrefPath(final Type_body_stmtsContext ctx) {
1351 for (int i = 0; i < ctx.getChildCount(); i++) {
1352 ParseTree child = ctx.getChild(i);
1353 if (child instanceof Leafref_specificationContext) {
1354 for (int j = 0; j < child.getChildCount(); j++) {
1355 ParseTree leafRefSpec = child.getChild(j);
1356 if (leafRefSpec instanceof Path_stmtContext) {
1357 return stringFromNode(leafRefSpec);
1366 * Internal helper method for parsing must statement.
1370 * @return MustDefinition object based on parsed context
1372 private static MustDefinition parseMust(final YangParser.Must_stmtContext ctx) {
1373 StringBuilder mustText = new StringBuilder();
1374 String description = null;
1375 String reference = null;
1376 String errorAppTag = null;
1377 String errorMessage = null;
1378 for (int i = 0; i < ctx.getChildCount(); ++i) {
1379 ParseTree child = ctx.getChild(i);
1380 if (child instanceof StringContext) {
1381 final StringContext context = (StringContext) child;
1382 if (context.getChildCount() == 1) {
1383 String mustPart = context.getChild(0).getText();
1384 // trim start and end quotation
1385 mustText.append(mustPart.substring(1, mustPart.length() - 1));
1387 for (int j = 0; j < context.getChildCount(); j++) {
1388 String mustPart = context.getChild(j).getText();
1390 mustText.append(mustPart.substring(0, mustPart.length() - 1));
1394 mustText.append(mustPart.substring(1));
1398 } else if (child instanceof Description_stmtContext) {
1399 description = stringFromNode(child);
1400 } else if (child instanceof Reference_stmtContext) {
1401 reference = stringFromNode(child);
1402 } else if (child instanceof Error_app_tag_stmtContext) {
1403 errorAppTag = stringFromNode(child);
1404 } else if (child instanceof Error_message_stmtContext) {
1405 errorMessage = stringFromNode(child);
1409 return new MustDefinitionImpl(mustText.toString(), description, reference, errorAppTag, errorMessage);
1413 * Parse given context and set constraints to constraints builder.
1417 * @param constraints
1418 * ConstraintsBuilder to fill
1420 public static void parseConstraints(final ParseTree ctx, final ConstraintsBuilder constraints) {
1421 for (int i = 0; i < ctx.getChildCount(); ++i) {
1422 final ParseTree childNode = ctx.getChild(i);
1423 if (childNode instanceof Max_elements_stmtContext) {
1424 Integer max = parseMaxElements((Max_elements_stmtContext) childNode, constraints.getModuleName());
1425 constraints.setMaxElements(max);
1426 } else if (childNode instanceof Min_elements_stmtContext) {
1427 Integer min = parseMinElements((Min_elements_stmtContext) childNode, constraints.getModuleName());
1428 constraints.setMinElements(min);
1429 } else if (childNode instanceof Must_stmtContext) {
1430 MustDefinition must = parseMust((Must_stmtContext) childNode);
1431 constraints.addMustDefinition(must);
1432 } else if (childNode instanceof Mandatory_stmtContext) {
1433 for (int j = 0; j < childNode.getChildCount(); j++) {
1434 ParseTree mandatoryTree = childNode.getChild(j);
1435 if (mandatoryTree instanceof Mandatory_argContext) {
1436 Boolean mandatory = Boolean.valueOf(stringFromNode(mandatoryTree));
1437 constraints.setMandatory(mandatory);
1440 } else if (childNode instanceof When_stmtContext) {
1441 constraints.addWhenCondition(stringFromNode(childNode));
1446 private static Integer parseMinElements(final Min_elements_stmtContext ctx, final String moduleName) {
1447 Integer result = null;
1449 for (int i = 0; i < ctx.getChildCount(); i++) {
1450 ParseTree minArg = ctx.getChild(i);
1451 if (minArg instanceof Min_value_argContext) {
1452 result = Integer.valueOf(stringFromNode(minArg));
1455 if (result == null) {
1456 throw new IllegalArgumentException();
1459 } catch (Exception e) {
1460 throw new YangParseException(moduleName, ctx.getStart().getLine(), "Failed to parse min-elements.", e);
1464 private static Integer parseMaxElements(final Max_elements_stmtContext ctx, final String moduleName) {
1465 Integer result = null;
1467 for (int i = 0; i < ctx.getChildCount(); i++) {
1468 ParseTree maxArg = ctx.getChild(i);
1469 if (maxArg instanceof Max_value_argContext) {
1470 result = Integer.valueOf(stringFromNode(maxArg));
1473 if (result == null) {
1474 throw new IllegalArgumentException();
1477 } catch (Exception e) {
1478 throw new YangParseException(moduleName, ctx.getStart().getLine(), "Failed to parse max-elements.", e);
1483 * Parse given context and return yin value.
1487 * @return true if value is 'true', false otherwise
1489 public static boolean parseYinValue(final Argument_stmtContext ctx) {
1490 boolean yinValue = false;
1491 outer: for (int i = 0; i < ctx.getChildCount(); i++) {
1492 ParseTree yin = ctx.getChild(i);
1493 if (yin instanceof Yin_element_stmtContext) {
1494 for (int j = 0; j < yin.getChildCount(); j++) {
1495 ParseTree yinArg = yin.getChild(j);
1496 if (yinArg instanceof Yin_element_argContext) {
1497 String yinString = stringFromNode(yinArg);
1498 if ("true".equals(yinString)) {
1510 * Check this base type.
1513 * base YANG type name
1515 * name of current module
1518 * @throws YangParseException
1519 * if this is one of YANG type which MUST contain additional
1520 * informations in its body
1522 public static void checkMissingBody(final String typeName, final String moduleName, final int line) {
1525 throw new YangParseException(moduleName, line,
1526 "The 'fraction-digits' statement MUST be present if the type is 'decimal64'.");
1528 throw new YangParseException(moduleName, line,
1529 "The 'base' statement MUST be present if the type is 'identityref'.");
1531 throw new YangParseException(moduleName, line,
1532 "The 'path' statement MUST be present if the type is 'leafref'.");
1534 throw new YangParseException(moduleName, line, "The 'bit' statement MUST be present if the type is 'bits'.");
1536 throw new YangParseException(moduleName, line,
1537 "The 'enum' statement MUST be present if the type is 'enumeration'.");
1542 * Parse refine statement.
1547 * name of current module
1548 * @return RefineHolder object representing this refine statement
1550 public static RefineHolderImpl parseRefine(final Refine_stmtContext refineCtx, final String moduleName) {
1551 final String refineTarget = stringFromNode(refineCtx);
1552 final RefineHolderImpl refine = new RefineHolderImpl(moduleName, refineCtx.getStart().getLine(), refineTarget);
1553 for (int i = 0; i < refineCtx.getChildCount(); i++) {
1554 ParseTree refinePom = refineCtx.getChild(i);
1555 if (refinePom instanceof Refine_pomContext) {
1556 for (int j = 0; j < refinePom.getChildCount(); j++) {
1557 ParseTree refineStmt = refinePom.getChild(j);
1558 parseRefineDefault(refine, refineStmt);
1560 if (refineStmt instanceof Refine_leaf_stmtsContext) {
1561 parseRefine(refine, (Refine_leaf_stmtsContext) refineStmt);
1562 } else if (refineStmt instanceof Refine_container_stmtsContext) {
1563 parseRefine(refine, (Refine_container_stmtsContext) refineStmt);
1564 } else if (refineStmt instanceof Refine_list_stmtsContext) {
1565 parseRefine(refine, (Refine_list_stmtsContext) refineStmt);
1566 } else if (refineStmt instanceof Refine_leaf_list_stmtsContext) {
1567 parseRefine(refine, (Refine_leaf_list_stmtsContext) refineStmt);
1568 } else if (refineStmt instanceof Refine_choice_stmtsContext) {
1569 parseRefine(refine, (Refine_choice_stmtsContext) refineStmt);
1570 } else if (refineStmt instanceof Refine_anyxml_stmtsContext) {
1571 parseRefine(refine, (Refine_anyxml_stmtsContext) refineStmt);
1579 private static void parseRefineDefault(final RefineHolderImpl refine, final ParseTree refineStmt) {
1580 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1581 ParseTree refineArg = refineStmt.getChild(i);
1582 if (refineArg instanceof Description_stmtContext) {
1583 String description = stringFromNode(refineArg);
1584 refine.setDescription(description);
1585 } else if (refineArg instanceof Reference_stmtContext) {
1586 String reference = stringFromNode(refineArg);
1587 refine.setReference(reference);
1588 } else if (refineArg instanceof Config_stmtContext) {
1589 Boolean config = parseConfig((Config_stmtContext) refineArg, refine.getModuleName());
1590 refine.setConfiguration(config);
1595 private static RefineBuilder parseRefine(final RefineHolderImpl refine, final Refine_leaf_stmtsContext refineStmt) {
1596 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1597 ParseTree refineArg = refineStmt.getChild(i);
1598 if (refineArg instanceof Default_stmtContext) {
1599 String defaultStr = stringFromNode(refineArg);
1600 refine.setDefaultStr(defaultStr);
1601 } else if (refineArg instanceof Mandatory_stmtContext) {
1602 for (int j = 0; j < refineArg.getChildCount(); j++) {
1603 ParseTree mandatoryTree = refineArg.getChild(j);
1604 if (mandatoryTree instanceof Mandatory_argContext) {
1605 Boolean mandatory = Boolean.valueOf(stringFromNode(mandatoryTree));
1606 refine.setMandatory(mandatory);
1609 } else if (refineArg instanceof Must_stmtContext) {
1610 MustDefinition must = parseMust((Must_stmtContext) refineArg);
1611 refine.setMust(must);
1618 private static RefineBuilder parseRefine(final RefineBuilder refine, final Refine_container_stmtsContext refineStmt) {
1619 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1620 ParseTree refineArg = refineStmt.getChild(i);
1621 if (refineArg instanceof Must_stmtContext) {
1622 MustDefinition must = parseMust((Must_stmtContext) refineArg);
1623 refine.setMust(must);
1624 } else if (refineArg instanceof Presence_stmtContext) {
1625 refine.setPresence(true);
1631 private static RefineBuilder parseRefine(final RefineHolderImpl refine, final Refine_list_stmtsContext refineStmt) {
1632 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1633 ParseTree refineArg = refineStmt.getChild(i);
1634 if (refineArg instanceof Must_stmtContext) {
1635 MustDefinition must = parseMust((Must_stmtContext) refineArg);
1636 refine.setMust(must);
1637 } else if (refineArg instanceof Max_elements_stmtContext) {
1638 Integer max = parseMaxElements((Max_elements_stmtContext) refineArg, refine.getModuleName());
1639 refine.setMaxElements(max);
1640 } else if (refineArg instanceof Min_elements_stmtContext) {
1641 Integer min = parseMinElements((Min_elements_stmtContext) refineArg, refine.getModuleName());
1642 refine.setMinElements(min);
1648 private static RefineBuilder parseRefine(final RefineHolderImpl refine, final Refine_leaf_list_stmtsContext refineStmt) {
1649 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1650 ParseTree refineArg = refineStmt.getChild(i);
1651 if (refineArg instanceof Must_stmtContext) {
1652 MustDefinition must = parseMust((Must_stmtContext) refineArg);
1653 refine.setMust(must);
1654 } else if (refineArg instanceof Max_elements_stmtContext) {
1655 Integer max = parseMaxElements((Max_elements_stmtContext) refineArg, refine.getModuleName());
1656 refine.setMaxElements(max);
1657 } else if (refineArg instanceof Min_elements_stmtContext) {
1658 Integer min = parseMinElements((Min_elements_stmtContext) refineArg, refine.getModuleName());
1659 refine.setMinElements(min);
1665 private static RefineBuilder parseRefine(final RefineHolderImpl refine, final Refine_choice_stmtsContext refineStmt) {
1666 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1667 ParseTree refineArg = refineStmt.getChild(i);
1668 if (refineArg instanceof Default_stmtContext) {
1669 String defaultStr = stringFromNode(refineArg);
1670 refine.setDefaultStr(defaultStr);
1671 } else if (refineArg instanceof Mandatory_stmtContext) {
1672 for (int j = 0; j < refineArg.getChildCount(); j++) {
1673 ParseTree mandatoryTree = refineArg.getChild(j);
1674 if (mandatoryTree instanceof Mandatory_argContext) {
1675 Boolean mandatory = Boolean.valueOf(stringFromNode(mandatoryTree));
1676 refine.setMandatory(mandatory);
1684 private static RefineBuilder parseRefine(final RefineBuilder refine, final Refine_anyxml_stmtsContext refineStmt) {
1685 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1686 ParseTree refineArg = refineStmt.getChild(i);
1687 if (refineArg instanceof Must_stmtContext) {
1688 MustDefinition must = parseMust((Must_stmtContext) refineArg);
1689 refine.setMust(must);
1690 } else if (refineArg instanceof Mandatory_stmtContext) {
1691 for (int j = 0; j < refineArg.getChildCount(); j++) {
1692 ParseTree mandatoryTree = refineArg.getChild(j);
1693 if (mandatoryTree instanceof Mandatory_argContext) {
1694 Boolean mandatory = Boolean.valueOf(stringFromNode(mandatoryTree));
1695 refine.setMandatory(mandatory);
1703 public static String getArgumentString(final org.antlr.v4.runtime.ParserRuleContext ctx) {
1704 List<StringContext> potentialValues = ctx.getRuleContexts(StringContext.class);
1705 checkState(!potentialValues.isEmpty());
1706 return ParserListenerUtils.stringFromStringContext(potentialValues.get(0));
1709 public static <T extends ParserRuleContext> Optional<T> getFirstContext(final ParserRuleContext context,final Class<T> contextType) {
1710 List<T> potential = context.getRuleContexts(contextType);
1711 if(potential.isEmpty()) {
1712 return Optional.absent();
1714 return Optional.of(potential.get(0));