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 final ParseTree child = treeNode.getChild(i);
163 if (child instanceof StringContext) {
164 return stringFromStringContext((StringContext)child);
170 private static String stringFromStringContext(final StringContext context) {
171 StringBuilder sb = new StringBuilder();
172 for (TerminalNode stringNode : context.STRING()) {
173 final String str = stringNode.getText();
174 final int i = str.indexOf('"');
182 * The string contains quotes, so we have to tread carefully.
184 * FIXME: I think this code is broken, but proving that requires
185 * making sense of the parser/lexer and how they tie into
186 * this method. Especially what format 'str' can have and
187 * how we need to handle it. The original check was:
189 * if (!(result.startsWith("\"")) && result.endsWith("\""))
191 * Looking at the parentheses it is hard to justify the
192 * pair right after negation -- the intent may have been
193 * to negate the entire expression.
195 if (i != 0 && str.endsWith("\"")) {
196 LOG.error("Syntax error in module {} at line {}: missing '\"'.", getParentModule(context),
197 context.getStart().getLine());
199 sb.append(QUOTE_MATCHER.removeFrom(str));
202 return sb.toString();
205 private static String getParentModule(final ParseTree ctx) {
206 ParseTree current = ctx;
207 while (current != null && !(current instanceof Module_stmtContext)) {
208 current = current.getParent();
210 if (current != null) {
211 Module_stmtContext module = (Module_stmtContext) current;
212 for (int i = 0; i < module.getChildCount(); i++) {
213 if (module.getChild(i) instanceof StringContext) {
214 final StringContext str = (StringContext) module.getChild(i);
215 return str.getChild(0).getText();
223 * Parse 'description', 'reference' and 'status' statements and fill in
229 * builder to fill in with parsed statements
231 public static void parseSchemaNodeArgs(final ParseTree ctx, final SchemaNodeBuilder builder) {
232 for (int i = 0; i < ctx.getChildCount(); i++) {
233 final ParseTree child = ctx.getChild(i);
234 if (child instanceof Description_stmtContext) {
235 final String desc = stringFromNode(child);
236 builder.setDescription(desc);
237 } else if (child instanceof Reference_stmtContext) {
238 final String ref = stringFromNode(child);
239 builder.setReference(ref);
240 } else if (child instanceof Status_stmtContext) {
241 final Status status = parseStatus((Status_stmtContext) child);
242 builder.setStatus(status);
248 * Parse given context and return its value;
252 * @return value parsed from context
254 public static Status parseStatus(final Status_stmtContext ctx) {
255 Status result = null;
256 for (int i = 0; i < ctx.getChildCount(); i++) {
257 ParseTree statusArg = ctx.getChild(i);
258 if (statusArg instanceof Status_argContext) {
259 String statusArgStr = stringFromNode(statusArg);
260 switch (statusArgStr) {
262 result = Status.CURRENT;
265 result = Status.DEPRECATED;
268 result = Status.OBSOLETE;
271 LOG.warn("Invalid 'status' statement: " + statusArgStr);
279 * Parse given tree and returns units statement as string.
283 * @return value of units statement as string or null if there is no units
286 public static String parseUnits(final ParseTree ctx) {
287 for (int i = 0; i < ctx.getChildCount(); i++) {
288 ParseTree child = ctx.getChild(i);
289 if (child instanceof Units_stmtContext) {
290 return stringFromNode(child);
297 * Parse given tree and returns default statement as string.
301 * @return value of default statement as string or null if there is no
304 public static String parseDefault(final ParseTree ctx) {
305 for (int i = 0; i < ctx.getChildCount(); i++) {
306 ParseTree child = ctx.getChild(i);
307 if (child instanceof Default_stmtContext) {
308 return stringFromNode(child);
315 * Create SchemaPath from actualPath and new node name.
318 * current position in model
319 * @return SchemaPath object
321 public static SchemaPath createActualSchemaPath(final Stack<QName> actualPath) {
322 return SchemaPath.create(actualPath, true);
326 * Create java.util.List of key node names.
329 * Key_stmtContext context
330 * @return YANG list key as java.util.List of key node names
332 public static List<String> createListKey(final Key_stmtContext ctx) {
333 String keyDefinition = stringFromNode(ctx);
334 return Lists.newArrayList(KEYDEF_SPLITTER.split(keyDefinition));
338 * Parse given type body of enumeration statement.
341 * type body context to parse
343 * actual position in YANG model
345 * current module name
346 * @return List of EnumPair object parsed from given context
348 private static List<EnumTypeDefinition.EnumPair> getEnumConstants(final Type_body_stmtsContext ctx,
349 final Stack<QName> path, final String moduleName) {
350 List<EnumTypeDefinition.EnumPair> enumConstants = new ArrayList<>();
352 for (int i = 0; i < ctx.getChildCount(); i++) {
353 ParseTree enumSpecChild = ctx.getChild(i);
354 if (enumSpecChild instanceof Enum_specificationContext) {
355 int highestValue = -1;
356 for (int j = 0; j < enumSpecChild.getChildCount(); j++) {
357 ParseTree enumChild = enumSpecChild.getChild(j);
358 if (enumChild instanceof Enum_stmtContext) {
359 EnumPair enumPair = createEnumPair((Enum_stmtContext) enumChild, highestValue, path, moduleName);
360 if (enumPair.getValue() > highestValue) {
361 highestValue = enumPair.getValue();
363 enumConstants.add(enumPair);
368 return enumConstants;
372 * Parse enum statement context
375 * enum statement context
376 * @param highestValue
377 * current highest value in enumeration
379 * actual position in YANG model
381 * current module name
382 * @return EnumPair object parsed from given context
384 private static EnumTypeDefinition.EnumPair createEnumPair(final Enum_stmtContext ctx, final int highestValue,
385 final Stack<QName> actualPath, final String moduleName) {
386 final String name = stringFromNode(ctx);
387 SchemaPath path = createTypePath(actualPath, name);
388 Integer value = null;
390 String description = null;
391 String reference = null;
392 Status status = null;
394 for (int i = 0; i < ctx.getChildCount(); i++) {
395 ParseTree child = ctx.getChild(i);
396 if (child instanceof Value_stmtContext) {
397 String valueStr = stringFromNode(child);
398 value = Integer.valueOf(valueStr);
399 } else if (child instanceof Description_stmtContext) {
400 description = stringFromNode(child);
401 } else if (child instanceof Reference_stmtContext) {
402 reference = stringFromNode(child);
403 } else if (child instanceof Status_stmtContext) {
404 status = parseStatus((Status_stmtContext) child);
409 value = highestValue + 1;
411 if (value < -2147483648 || value > 2147483647) {
412 throw new YangParseException(moduleName, ctx.getStart().getLine(), "Error on enum '" + name
413 + "': the enum value MUST be in the range from -2147483648 to 2147483647, but was: " + value);
416 EnumPairImpl result = new EnumPairImpl();
417 result.qname = path.getPathTowardsRoot().iterator().next();
419 result.description = description;
420 result.reference = reference;
421 result.status = status;
423 result.value = value;
428 * Internal implementation of EnumPair.
430 private static class EnumPairImpl implements EnumTypeDefinition.EnumPair {
432 private SchemaPath path;
433 private String description;
434 private String reference;
435 private Status status;
436 private final List<UnknownSchemaNode> unknownNodes = Collections.emptyList();
438 private Integer value;
441 public QName getQName() {
446 public SchemaPath getPath() {
451 public String getDescription() {
456 public String getReference() {
461 public Status getStatus() {
466 public List<UnknownSchemaNode> getUnknownSchemaNodes() {
471 public String getName() {
476 public Integer getValue() {
481 public int hashCode() {
482 final int prime = 31;
484 result = prime * result + ((qname == null) ? 0 : qname.hashCode());
485 result = prime * result + ((path == null) ? 0 : path.hashCode());
486 result = prime * result + ((unknownNodes == null) ? 0 : unknownNodes.hashCode());
487 result = prime * result + ((name == null) ? 0 : name.hashCode());
488 result = prime * result + ((value == null) ? 0 : value.hashCode());
493 public boolean equals(final Object obj) {
500 if (getClass() != obj.getClass()) {
503 EnumPairImpl other = (EnumPairImpl) obj;
505 if (other.qname != null) {
508 } else if (!qname.equals(other.qname)) {
512 if (other.path != null) {
515 } else if (!path.equals(other.path)) {
518 if (unknownNodes == null) {
519 if (other.unknownNodes != null) {
522 } else if (!unknownNodes.equals(other.unknownNodes)) {
526 if (other.name != null) {
529 } else if (!name.equals(other.name)) {
533 if (other.value != null) {
536 } else if (!value.equals(other.value)) {
543 public String toString() {
544 return EnumTypeDefinition.EnumPair.class.getSimpleName() + "[name=" + name + ", value=" + value + "]";
549 * Get and parse range from given type body context.
552 * type body context to parse
554 * name of current module
555 * @return List of RangeConstraint created from this context
557 private static List<RangeConstraint> getRangeConstraints(final Type_body_stmtsContext ctx, final String moduleName) {
558 for (int i = 0; i < ctx.getChildCount(); i++) {
559 ParseTree numRestrChild = ctx.getChild(i);
561 if (numRestrChild instanceof Numerical_restrictionsContext) {
562 for (int j = 0; j < numRestrChild.getChildCount(); j++) {
563 ParseTree rangeChild = numRestrChild.getChild(j);
564 if (rangeChild instanceof Range_stmtContext) {
565 return parseRangeConstraints((Range_stmtContext) rangeChild, moduleName);
570 if (numRestrChild instanceof Decimal64_specificationContext) {
571 for (int j = 0; j < numRestrChild.getChildCount(); j++) {
572 ParseTree decRestr = numRestrChild.getChild(j);
573 if (decRestr instanceof Numerical_restrictionsContext) {
574 for (int k = 0; k < decRestr.getChildCount(); k++) {
575 ParseTree rangeChild = decRestr.getChild(k);
576 if (rangeChild instanceof Range_stmtContext) {
577 return parseRangeConstraints((Range_stmtContext) rangeChild, moduleName);
584 return Collections.emptyList();
588 * Parse given range context.
591 * range context to parse
593 * name of current module
594 * @return List of RangeConstraints parsed from this context
596 private static List<RangeConstraint> parseRangeConstraints(final Range_stmtContext ctx, final String moduleName) {
597 final int line = ctx.getStart().getLine();
598 Optional<String> description = Optional.absent();
599 Optional<String> reference = Optional.absent();
601 for (int i = 0; i < ctx.getChildCount(); i++) {
602 ParseTree child = ctx.getChild(i);
603 if (child instanceof Description_stmtContext) {
604 description = Optional.fromNullable(stringFromNode(child));
605 } else if (child instanceof Reference_stmtContext) {
606 reference = Optional.fromNullable(stringFromNode(child));
610 List<RangeConstraint> rangeConstraints = new ArrayList<>();
611 for (String def : PIPE_SPLITTER.split(stringFromNode(ctx))) {
612 final Iterator<String> split = DOT_DOT_SPLITTER.split(def).iterator();
613 final Number min = parseNumberConstraintValue(split.next(), moduleName, line);
616 if (split.hasNext()) {
617 max = parseNumberConstraintValue(split.next(), moduleName, line);
618 if (split.hasNext()) {
619 throw new YangParseException(moduleName, ctx.getStart().getLine(), "Malformed length constraint \"" + def + "\".");
625 RangeConstraint range = BaseConstraints.newRangeConstraint(min, max, description, reference);
626 rangeConstraints.add(range);
629 return rangeConstraints;
633 * Get and parse length from given type body context.
636 * type body context to parse
638 * name of current module
639 * @return List of LengthConstraint created from this context
641 private static List<LengthConstraint> getLengthConstraints(final Type_body_stmtsContext ctx, final String moduleName) {
642 for (int i = 0; i < ctx.getChildCount(); i++) {
643 ParseTree stringRestrChild = ctx.getChild(i);
644 if (stringRestrChild instanceof String_restrictionsContext) {
645 for (int j = 0; j < stringRestrChild.getChildCount(); j++) {
646 ParseTree lengthChild = stringRestrChild.getChild(j);
647 if (lengthChild instanceof Length_stmtContext) {
648 return parseLengthConstraints((Length_stmtContext) lengthChild, moduleName);
653 return Collections.emptyList();
657 * Parse given length context.
660 * length context to parse
662 * name of current module
663 * @return List of LengthConstraints parsed from this context
665 private static List<LengthConstraint> parseLengthConstraints(final Length_stmtContext ctx, final String moduleName) {
666 final int line = ctx.getStart().getLine();
667 Optional<String> description = Optional.absent();
668 Optional<String> reference = Optional.absent();
670 for (int i = 0; i < ctx.getChildCount(); i++) {
671 ParseTree child = ctx.getChild(i);
672 if (child instanceof Description_stmtContext) {
673 description = Optional.fromNullable(stringFromNode(child));
674 } else if (child instanceof Reference_stmtContext) {
675 reference = Optional.fromNullable(stringFromNode(child));
679 List<LengthConstraint> lengthConstraints = new ArrayList<>();
680 for (String def : PIPE_SPLITTER.split(stringFromNode(ctx))) {
681 final Iterator<String> split = DOT_DOT_SPLITTER.split(def).iterator();
682 final Number min = parseNumberConstraintValue(split.next(), moduleName, line);
685 if (split.hasNext()) {
686 max = parseNumberConstraintValue(split.next(), moduleName, line);
687 if (split.hasNext()) {
688 throw new YangParseException(moduleName, ctx.getStart().getLine(), "Malformed length constraint \"" + def + "\".");
694 LengthConstraint range = BaseConstraints.newLengthConstraint(min, max, description, reference);
695 lengthConstraints.add(range);
698 return lengthConstraints;
705 * name of current module
707 * current line in module
708 * @return wrapper object of primitive java type or UnknownBoundaryNumber if
709 * type is one of special YANG values 'min' or 'max'
711 private static Number parseNumberConstraintValue(final String value, final String moduleName, final int line) {
713 if ("min".equals(value) || "max".equals(value)) {
714 result = new UnknownBoundaryNumber(value);
717 if (value.indexOf('.') != -1) {
718 result = new BigDecimal(value);
720 result = new BigInteger(value);
722 } catch (NumberFormatException e) {
723 throw new YangParseException(moduleName, line, "Unable to parse range value '" + value + "'.", e);
730 * Parse type body and return pattern constraints.
734 * @return list of pattern constraints
736 private static List<PatternConstraint> getPatternConstraint(final Type_body_stmtsContext ctx) {
737 List<PatternConstraint> patterns = new ArrayList<>();
739 for (int i = 0; i < ctx.getChildCount(); i++) {
740 ParseTree stringRestrChild = ctx.getChild(i);
741 if (stringRestrChild instanceof String_restrictionsContext) {
742 for (int j = 0; j < stringRestrChild.getChildCount(); j++) {
743 ParseTree lengthChild = stringRestrChild.getChild(j);
744 if (lengthChild instanceof Pattern_stmtContext) {
745 patterns.add(parsePatternConstraint((Pattern_stmtContext) lengthChild));
754 * Internal helper method.
758 * @return PatternConstraint object
760 private static PatternConstraint parsePatternConstraint(final Pattern_stmtContext ctx) {
761 String description = null;
762 String reference = null;
763 for (int i = 0; i < ctx.getChildCount(); i++) {
764 ParseTree child = ctx.getChild(i);
765 if (child instanceof Description_stmtContext) {
766 description = stringFromNode(child);
767 } else if (child instanceof Reference_stmtContext) {
768 reference = stringFromNode(child);
771 String pattern = parsePatternString(ctx);
772 return BaseConstraints.patternConstraint(pattern, description, reference);
776 * Parse given context and return pattern value.
780 * @return pattern value as String
782 private static String parsePatternString(final Pattern_stmtContext ctx) {
783 StringBuilder result = new StringBuilder();
784 for (int i = 0; i < ctx.getChildCount(); ++i) {
785 ParseTree child = ctx.getChild(i);
786 if (child instanceof StringContext) {
787 for (int j = 0; j < child.getChildCount(); j++) {
789 String patternToken = child.getChild(j).getText();
790 result.append(patternToken.substring(1, patternToken.length() - 1));
795 return result.toString();
799 * Get fraction digits value from type body.
802 * type body context to parse
804 * name of current module
805 * @return 'fraction-digits' value if present in given context, null
808 private static Integer getFractionDigits(final Type_body_stmtsContext ctx, final String moduleName) {
809 Integer result = null;
810 for (int i = 0; i < ctx.getChildCount(); i++) {
811 ParseTree dec64specChild = ctx.getChild(i);
812 if (dec64specChild instanceof Decimal64_specificationContext) {
813 result = parseFractionDigits((Decimal64_specificationContext) dec64specChild, moduleName);
820 * Parse decimal64 fraction-digits value.
825 * name of current module
826 * @return fraction-digits value as Integer
828 private static Integer parseFractionDigits(final Decimal64_specificationContext ctx, final String moduleName) {
829 Integer result = null;
830 for (int i = 0; i < ctx.getChildCount(); i++) {
831 ParseTree fdChild = ctx.getChild(i);
832 if (fdChild instanceof Fraction_digits_stmtContext) {
833 String value = stringFromNode(fdChild);
835 result = Integer.valueOf(value);
836 } catch (NumberFormatException e) {
837 throw new YangParseException(moduleName, ctx.getStart().getLine(),
838 "Unable to parse fraction digits value '" + value + "'.", e);
846 * Internal helper method for parsing bit statements from given type body
850 * type body context to parse
852 * current position in YANG model
854 * current module name
855 * @return List of Bit objects created from this context
857 private static List<BitsTypeDefinition.Bit> getBits(final Type_body_stmtsContext ctx, final Stack<QName> actualPath,
858 final String moduleName) {
859 final List<BitsTypeDefinition.Bit> bits = new ArrayList<>();
860 for (int j = 0; j < ctx.getChildCount(); j++) {
861 ParseTree bitsSpecChild = ctx.getChild(j);
862 if (bitsSpecChild instanceof Bits_specificationContext) {
863 long highestPosition = -1;
864 for (int k = 0; k < bitsSpecChild.getChildCount(); k++) {
865 ParseTree bitChild = bitsSpecChild.getChild(k);
866 if (bitChild instanceof Bit_stmtContext) {
867 Bit bit = parseBit((Bit_stmtContext) bitChild, highestPosition, actualPath, moduleName);
868 if (bit.getPosition() > highestPosition) {
869 highestPosition = bit.getPosition();
880 * Internal helper method for parsing bit context.
883 * bit statement context to parse
884 * @param highestPosition
885 * current highest position in bits type
887 * current position in YANG model
889 * current module name
890 * @return Bit object parsed from this context
892 private static BitsTypeDefinition.Bit parseBit(final Bit_stmtContext ctx, final long highestPosition,
893 final Stack<QName> actualPath, final String moduleName) {
894 String name = stringFromNode(ctx);
895 Long position = null;
897 String description = null;
898 String reference = null;
899 Status status = Status.CURRENT;
901 SchemaPath schemaPath = createBaseTypePath(actualPath, name);
903 for (int i = 0; i < ctx.getChildCount(); i++) {
904 ParseTree child = ctx.getChild(i);
905 if (child instanceof Position_stmtContext) {
906 String positionStr = stringFromNode(child);
907 position = Long.valueOf(positionStr);
908 } else if (child instanceof Description_stmtContext) {
909 description = stringFromNode(child);
910 } else if (child instanceof Reference_stmtContext) {
911 reference = stringFromNode(child);
912 } else if (child instanceof Status_stmtContext) {
913 status = parseStatus((Status_stmtContext) child);
917 if (position == null) {
918 position = highestPosition + 1;
920 if (position < 0 || position > 4294967295L) {
921 throw new YangParseException(moduleName, ctx.getStart().getLine(), "Error on bit '" + name
922 + "': the position value MUST be in the range 0 to 4294967295");
925 final List<UnknownSchemaNode> unknownNodes = Collections.emptyList();
926 return new BitImpl(position, schemaPath.getPathTowardsRoot().iterator().next(), schemaPath,
927 description, reference, status, unknownNodes);
931 * Parse 'ordered-by' statement.
933 * The 'ordered-by' statement defines whether the order of entries within a
934 * list are determined by the user or the system. The argument is one of the
935 * strings "system" or "user". If not present, order defaults to "system".
938 * Ordered_by_stmtContext
939 * @return true, if ordered-by contains value 'user', false otherwise
941 public static boolean parseUserOrdered(final Ordered_by_stmtContext ctx) {
942 boolean result = false;
943 for (int j = 0; j < ctx.getChildCount(); j++) {
944 ParseTree orderArg = ctx.getChild(j);
945 if (orderArg instanceof Ordered_by_argContext) {
946 String orderStr = stringFromNode(orderArg);
955 LOG.warn("Invalid 'ordered-by' statement.");
963 * Get config statement from given context. If there is no config statement,
964 * return config value of parent
971 * name of current module
973 * line in current module
974 * @return config statement parsed from given context
976 public static boolean getConfig(final ParseTree ctx, final Builder node, final String moduleName, final int line) {
978 // parse configuration statement
979 Boolean config = null;
980 for (int i = 0; i < ctx.getChildCount(); i++) {
981 ParseTree child = ctx.getChild(i);
982 if (child instanceof Config_stmtContext) {
983 config = parseConfig((Config_stmtContext) child, moduleName);
988 // If 'config' is not specified, the default is the same as the parent
989 // schema node's 'config' value
990 boolean parentConfig = getParentConfig(node);
991 if (config == null) {
992 result = parentConfig;
994 // Check: if a node has 'config' set to 'false', no node underneath
995 // it can have 'config' set to 'true'
996 if (!parentConfig && config) {
997 throw new YangParseException(moduleName, line,
998 "Can not set 'config' to 'true' if parent node has 'config' set to 'false'");
1006 private static boolean getParentConfig(final Builder node) {
1007 Builder parent = node.getParent();
1010 if (parent instanceof ChoiceCaseBuilder) {
1011 parent = parent.getParent();
1013 if (parent instanceof DataSchemaNodeBuilder) {
1014 config = ((DataSchemaNodeBuilder) parent).isConfiguration();
1022 * Parse config statement.
1025 * config context to parse
1027 * current module name
1028 * @return true if given context contains string 'true', false otherwise
1030 private static Boolean parseConfig(final Config_stmtContext ctx, final String moduleName) {
1031 Boolean result = null;
1033 for (int i = 0; i < ctx.getChildCount(); ++i) {
1034 final ParseTree configContext = ctx.getChild(i);
1035 if (configContext instanceof Config_argContext) {
1036 final String value = stringFromNode(configContext);
1045 throw new YangParseException(moduleName, ctx.getStart().getLine(),
1046 "Failed to parse 'config' statement value: '" + value + "'.");
1055 * Parse type body and create UnknownType definition.
1057 * @param typedefQName
1058 * qname of current type
1062 * actual path in model
1070 * current node parent
1071 * @return UnknownType object with constraints from parsed type body
1073 public static TypeDefinition<?> parseUnknownTypeWithBody(final QName typedefQName,
1074 final Type_body_stmtsContext ctx, final Stack<QName> actualPath, final URI namespace, final Date revision,
1075 final String prefix, final Builder parent) {
1076 String moduleName = parent.getModuleName();
1077 String typeName = typedefQName.getLocalName();
1079 UnknownType.Builder unknownType = new UnknownType.Builder(typedefQName);
1082 List<RangeConstraint> rangeStatements = getRangeConstraints(ctx, moduleName);
1083 List<LengthConstraint> lengthStatements = getLengthConstraints(ctx, moduleName);
1084 List<PatternConstraint> patternStatements = getPatternConstraint(ctx);
1085 Integer fractionDigits = getFractionDigits(ctx, moduleName);
1087 if (parent instanceof TypeDefinitionBuilder) {
1088 TypeDefinitionBuilder typedef = (TypeDefinitionBuilder) parent;
1089 typedef.setRanges(rangeStatements);
1090 typedef.setLengths(lengthStatements);
1091 typedef.setPatterns(patternStatements);
1092 typedef.setFractionDigits(fractionDigits);
1093 return unknownType.build();
1095 TypeDefinition<?> baseType = unknownType.build();
1096 QName qname = new QName(namespace, revision, prefix, typeName);
1097 SchemaPath schemaPath = createTypePath(actualPath, typeName);
1099 ExtendedType.Builder typeBuilder = new ExtendedType.Builder(qname, baseType, null, null, schemaPath);
1100 typeBuilder.ranges(rangeStatements);
1101 typeBuilder.lengths(lengthStatements);
1102 typeBuilder.patterns(patternStatements);
1103 typeBuilder.fractionDigits(fractionDigits);
1105 return typeBuilder.build();
1109 return unknownType.build();
1113 * Create TypeDefinition object based on given type name and type body.
1120 * current path in schema
1129 * @return TypeDefinition object based on parsed values.
1131 public static TypeDefinition<?> parseTypeWithBody(final String typeName, final Type_body_stmtsContext typeBody,
1132 final Stack<QName> actualPath, final URI namespace, final Date revision, final String prefix,
1133 final Builder parent) {
1135 final String moduleName = parent.getModuleName();
1136 final int line = typeBody.getStart().getLine();
1137 TypeDefinition<?> baseType = null;
1139 Integer fractionDigits = getFractionDigits(typeBody, moduleName);
1140 List<LengthConstraint> lengthStatements = getLengthConstraints(typeBody, moduleName);
1141 List<PatternConstraint> patternStatements = getPatternConstraint(typeBody);
1142 List<RangeConstraint> rangeStatements = getRangeConstraints(typeBody, moduleName);
1144 TypeConstraints constraints = new TypeConstraints(moduleName, line);
1145 constraints.addFractionDigits(fractionDigits);
1146 constraints.addLengths(lengthStatements);
1147 constraints.addPatterns(patternStatements);
1148 constraints.addRanges(rangeStatements);
1150 SchemaPath baseTypePath = createBaseTypePath(actualPath, typeName);
1151 SchemaPath extBaseTypePath = createExtendedBaseTypePath(actualPath, namespace, revision, prefix, typeName);
1153 if (parent instanceof TypeDefinitionBuilder && !(parent instanceof UnionTypeBuilder)) {
1154 extBaseTypePath = baseTypePath;
1157 if ("decimal64".equals(typeName)) {
1158 if (rangeStatements.isEmpty()) {
1160 return new Decimal64(baseTypePath, fractionDigits);
1161 } catch(Exception e) {
1162 throw new YangParseException(moduleName, line, e.getMessage());
1165 Decimal64 decimalType = new Decimal64(extBaseTypePath, fractionDigits);
1166 constraints.addRanges(decimalType.getRangeConstraints());
1167 baseType = decimalType;
1168 } else if (typeName.startsWith("int")) {
1169 IntegerTypeDefinition intType = null;
1172 intType = Int8.getInstance();
1175 intType = Int16.getInstance();
1178 intType = Int32.getInstance();
1181 intType = Int64.getInstance();
1184 if (intType == null) {
1185 throw new YangParseException(moduleName, line, "Unknown yang type " + typeName);
1187 constraints.addRanges(intType.getRangeConstraints());
1189 } else if (typeName.startsWith("uint")) {
1190 UnsignedIntegerTypeDefinition uintType = null;
1193 uintType = Uint8.getInstance();
1196 uintType = Uint16.getInstance();
1199 uintType = Uint32.getInstance();
1202 uintType = Uint64.getInstance();
1205 if (uintType == null) {
1206 throw new YangParseException(moduleName, line, "Unknown yang type " + typeName);
1208 constraints.addRanges(uintType.getRangeConstraints());
1209 baseType = uintType;
1210 } else if ("enumeration".equals(typeName)) {
1211 List<EnumTypeDefinition.EnumPair> enumConstants = getEnumConstants(typeBody, actualPath, moduleName);
1212 return EnumerationType.create(baseTypePath, enumConstants, Optional.<EnumPair> absent());
1213 } else if ("string".equals(typeName)) {
1214 StringTypeDefinition stringType = StringType.getInstance();
1215 constraints.addLengths(stringType.getLengthConstraints());
1216 baseType = stringType;
1217 } else if ("bits".equals(typeName)) {
1218 return BitsType.create(baseTypePath, getBits(typeBody, actualPath, moduleName));
1219 } else if ("leafref".equals(typeName)) {
1220 final String path = parseLeafrefPath(typeBody);
1221 final boolean absolute = path.startsWith("/");
1222 RevisionAwareXPath xpath = new RevisionAwareXPathImpl(path, absolute);
1223 return new Leafref(xpath);
1224 } else if ("binary".equals(typeName)) {
1225 BinaryTypeDefinition binaryType = BinaryType.getInstance();
1226 constraints.addLengths(binaryType.getLengthConstraints());
1227 baseType = binaryType;
1228 } else if ("instance-identifier".equals(typeName)) {
1229 return InstanceIdentifier.create(isRequireInstance(typeBody));
1232 if (parent instanceof TypeDefinitionBuilder && !(parent instanceof UnionTypeBuilder)) {
1233 TypeDefinitionBuilder typedef = (TypeDefinitionBuilder) parent;
1234 typedef.setRanges(constraints.getRange());
1235 typedef.setLengths(constraints.getLength());
1236 typedef.setPatterns(constraints.getPatterns());
1237 typedef.setFractionDigits(constraints.getFractionDigits());
1241 List<QName> path = new ArrayList<>(actualPath);
1242 path.add(new QName(namespace, revision, prefix, typeName));
1243 SchemaPath schemaPath = SchemaPath.create(path, true);
1245 QName qname = schemaPath.getPath().get(schemaPath.getPath().size() - 1);
1246 ExtendedType.Builder typeBuilder = new ExtendedType.Builder(qname, baseType, "", "", schemaPath);
1248 typeBuilder.ranges(constraints.getRange());
1249 typeBuilder.lengths(constraints.getLength());
1250 typeBuilder.patterns(constraints.getPatterns());
1251 typeBuilder.fractionDigits(constraints.getFractionDigits());
1253 return typeBuilder.build();
1256 private static SchemaPath createTypePath(final Stack<QName> actual, final String typeName) {
1257 QName last = actual.peek();
1258 QName typeQName = new QName(last.getNamespace(), last.getRevision(), last.getPrefix(), typeName);
1259 List<QName> path = new ArrayList<>(actual);
1260 path.add(typeQName);
1261 return SchemaPath.create(path, true);
1264 private static SchemaPath createBaseTypePath(final Stack<QName> actual, final String typeName) {
1265 List<QName> path = new ArrayList<>(actual);
1266 path.add(BaseTypes.constructQName(typeName));
1267 return SchemaPath.create(path, true);
1270 private static SchemaPath createExtendedBaseTypePath(final Stack<QName> actual, final URI namespace, final Date revision,
1271 final String prefix, final String typeName) {
1272 QName extTypeName = new QName(namespace, revision, prefix, typeName);
1273 QName baseTypeName = BaseTypes.constructQName(typeName);
1274 List<QName> path = new ArrayList<>(actual);
1275 path.add(extTypeName);
1276 path.add(baseTypeName);
1277 return SchemaPath.create(path, true);
1281 * Parse given context and find identityref base value.
1285 * @return identityref base value as String
1287 public static String getIdentityrefBase(final Type_body_stmtsContext ctx) {
1288 String result = null;
1289 outer: for (int i = 0; i < ctx.getChildCount(); i++) {
1290 ParseTree child = ctx.getChild(i);
1291 if (child instanceof Identityref_specificationContext) {
1292 for (int j = 0; j < child.getChildCount(); j++) {
1293 ParseTree baseArg = child.getChild(j);
1294 if (baseArg instanceof Base_stmtContext) {
1295 result = stringFromNode(baseArg);
1305 * Parse type body statement and find require-instance value.
1309 * @return require-instance value
1311 private static boolean isRequireInstance(final Type_body_stmtsContext ctx) {
1312 for (int i = 0; i < ctx.getChildCount(); i++) {
1313 ParseTree child = ctx.getChild(i);
1314 if (child instanceof Instance_identifier_specificationContext) {
1315 for (int j = 0; j < child.getChildCount(); j++) {
1316 ParseTree reqStmt = child.getChild(j);
1317 if (reqStmt instanceof Require_instance_stmtContext) {
1318 for (int k = 0; k < reqStmt.getChildCount(); k++) {
1319 ParseTree reqArg = reqStmt.getChild(k);
1320 if (reqArg instanceof Require_instance_argContext) {
1321 return Boolean.valueOf(stringFromNode(reqArg));
1332 * Parse type body statement and find leafref path.
1336 * @return leafref path as String
1338 private static String parseLeafrefPath(final Type_body_stmtsContext ctx) {
1339 for (int i = 0; i < ctx.getChildCount(); i++) {
1340 ParseTree child = ctx.getChild(i);
1341 if (child instanceof Leafref_specificationContext) {
1342 for (int j = 0; j < child.getChildCount(); j++) {
1343 ParseTree leafRefSpec = child.getChild(j);
1344 if (leafRefSpec instanceof Path_stmtContext) {
1345 return stringFromNode(leafRefSpec);
1354 * Internal helper method for parsing must statement.
1358 * @return MustDefinition object based on parsed context
1360 private static MustDefinition parseMust(final YangParser.Must_stmtContext ctx) {
1361 StringBuilder mustText = new StringBuilder();
1362 String description = null;
1363 String reference = null;
1364 String errorAppTag = null;
1365 String errorMessage = null;
1366 for (int i = 0; i < ctx.getChildCount(); ++i) {
1367 ParseTree child = ctx.getChild(i);
1368 if (child instanceof StringContext) {
1369 final StringContext context = (StringContext) child;
1370 if (context.getChildCount() == 1) {
1371 String mustPart = context.getChild(0).getText();
1372 // trim start and end quotation
1373 mustText.append(mustPart.substring(1, mustPart.length() - 1));
1375 for (int j = 0; j < context.getChildCount(); j++) {
1376 String mustPart = context.getChild(j).getText();
1378 mustText.append(mustPart.substring(0, mustPart.length() - 1));
1382 mustText.append(mustPart.substring(1));
1386 } else if (child instanceof Description_stmtContext) {
1387 description = stringFromNode(child);
1388 } else if (child instanceof Reference_stmtContext) {
1389 reference = stringFromNode(child);
1390 } else if (child instanceof Error_app_tag_stmtContext) {
1391 errorAppTag = stringFromNode(child);
1392 } else if (child instanceof Error_message_stmtContext) {
1393 errorMessage = stringFromNode(child);
1397 return new MustDefinitionImpl(mustText.toString(), description, reference, errorAppTag, errorMessage);
1401 * Parse given context and set constraints to constraints builder.
1405 * @param constraints
1406 * ConstraintsBuilder to fill
1408 public static void parseConstraints(final ParseTree ctx, final ConstraintsBuilder constraints) {
1409 for (int i = 0; i < ctx.getChildCount(); ++i) {
1410 final ParseTree childNode = ctx.getChild(i);
1411 if (childNode instanceof Max_elements_stmtContext) {
1412 Integer max = parseMaxElements((Max_elements_stmtContext) childNode, constraints.getModuleName());
1413 constraints.setMaxElements(max);
1414 } else if (childNode instanceof Min_elements_stmtContext) {
1415 Integer min = parseMinElements((Min_elements_stmtContext) childNode, constraints.getModuleName());
1416 constraints.setMinElements(min);
1417 } else if (childNode instanceof Must_stmtContext) {
1418 MustDefinition must = parseMust((Must_stmtContext) childNode);
1419 constraints.addMustDefinition(must);
1420 } else if (childNode instanceof Mandatory_stmtContext) {
1421 for (int j = 0; j < childNode.getChildCount(); j++) {
1422 ParseTree mandatoryTree = childNode.getChild(j);
1423 if (mandatoryTree instanceof Mandatory_argContext) {
1424 Boolean mandatory = Boolean.valueOf(stringFromNode(mandatoryTree));
1425 constraints.setMandatory(mandatory);
1428 } else if (childNode instanceof When_stmtContext) {
1429 constraints.addWhenCondition(stringFromNode(childNode));
1434 private static Integer parseMinElements(final Min_elements_stmtContext ctx, final String moduleName) {
1435 Integer result = null;
1437 for (int i = 0; i < ctx.getChildCount(); i++) {
1438 ParseTree minArg = ctx.getChild(i);
1439 if (minArg instanceof Min_value_argContext) {
1440 result = Integer.valueOf(stringFromNode(minArg));
1443 if (result == null) {
1444 throw new IllegalArgumentException();
1447 } catch (Exception e) {
1448 throw new YangParseException(moduleName, ctx.getStart().getLine(), "Failed to parse min-elements.", e);
1452 private static Integer parseMaxElements(final Max_elements_stmtContext ctx, final String moduleName) {
1453 Integer result = null;
1455 for (int i = 0; i < ctx.getChildCount(); i++) {
1456 ParseTree maxArg = ctx.getChild(i);
1457 if (maxArg instanceof Max_value_argContext) {
1458 result = Integer.valueOf(stringFromNode(maxArg));
1461 if (result == null) {
1462 throw new IllegalArgumentException();
1465 } catch (Exception e) {
1466 throw new YangParseException(moduleName, ctx.getStart().getLine(), "Failed to parse max-elements.", e);
1471 * Parse given context and return yin value.
1475 * @return true if value is 'true', false otherwise
1477 public static boolean parseYinValue(final Argument_stmtContext ctx) {
1478 boolean yinValue = false;
1479 outer: for (int i = 0; i < ctx.getChildCount(); i++) {
1480 ParseTree yin = ctx.getChild(i);
1481 if (yin instanceof Yin_element_stmtContext) {
1482 for (int j = 0; j < yin.getChildCount(); j++) {
1483 ParseTree yinArg = yin.getChild(j);
1484 if (yinArg instanceof Yin_element_argContext) {
1485 String yinString = stringFromNode(yinArg);
1486 if ("true".equals(yinString)) {
1498 * Check this base type.
1501 * base YANG type name
1503 * name of current module
1506 * @throws YangParseException
1507 * if this is one of YANG type which MUST contain additional
1508 * informations in its body
1510 public static void checkMissingBody(final String typeName, final String moduleName, final int line) {
1513 throw new YangParseException(moduleName, line,
1514 "The 'fraction-digits' statement MUST be present if the type is 'decimal64'.");
1516 throw new YangParseException(moduleName, line,
1517 "The 'base' statement MUST be present if the type is 'identityref'.");
1519 throw new YangParseException(moduleName, line,
1520 "The 'path' statement MUST be present if the type is 'leafref'.");
1522 throw new YangParseException(moduleName, line, "The 'bit' statement MUST be present if the type is 'bits'.");
1524 throw new YangParseException(moduleName, line,
1525 "The 'enum' statement MUST be present if the type is 'enumeration'.");
1530 * Parse refine statement.
1535 * name of current module
1536 * @return RefineHolder object representing this refine statement
1538 public static RefineHolderImpl parseRefine(final Refine_stmtContext refineCtx, final String moduleName) {
1539 final String refineTarget = stringFromNode(refineCtx);
1540 final RefineHolderImpl refine = new RefineHolderImpl(moduleName, refineCtx.getStart().getLine(), refineTarget);
1541 for (int i = 0; i < refineCtx.getChildCount(); i++) {
1542 ParseTree refinePom = refineCtx.getChild(i);
1543 if (refinePom instanceof Refine_pomContext) {
1544 for (int j = 0; j < refinePom.getChildCount(); j++) {
1545 ParseTree refineStmt = refinePom.getChild(j);
1546 parseRefineDefault(refine, refineStmt);
1548 if (refineStmt instanceof Refine_leaf_stmtsContext) {
1549 parseRefine(refine, (Refine_leaf_stmtsContext) refineStmt);
1550 } else if (refineStmt instanceof Refine_container_stmtsContext) {
1551 parseRefine(refine, (Refine_container_stmtsContext) refineStmt);
1552 } else if (refineStmt instanceof Refine_list_stmtsContext) {
1553 parseRefine(refine, (Refine_list_stmtsContext) refineStmt);
1554 } else if (refineStmt instanceof Refine_leaf_list_stmtsContext) {
1555 parseRefine(refine, (Refine_leaf_list_stmtsContext) refineStmt);
1556 } else if (refineStmt instanceof Refine_choice_stmtsContext) {
1557 parseRefine(refine, (Refine_choice_stmtsContext) refineStmt);
1558 } else if (refineStmt instanceof Refine_anyxml_stmtsContext) {
1559 parseRefine(refine, (Refine_anyxml_stmtsContext) refineStmt);
1567 private static void parseRefineDefault(final RefineHolderImpl refine, final ParseTree refineStmt) {
1568 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1569 ParseTree refineArg = refineStmt.getChild(i);
1570 if (refineArg instanceof Description_stmtContext) {
1571 String description = stringFromNode(refineArg);
1572 refine.setDescription(description);
1573 } else if (refineArg instanceof Reference_stmtContext) {
1574 String reference = stringFromNode(refineArg);
1575 refine.setReference(reference);
1576 } else if (refineArg instanceof Config_stmtContext) {
1577 Boolean config = parseConfig((Config_stmtContext) refineArg, refine.getModuleName());
1578 refine.setConfiguration(config);
1583 private static RefineBuilder parseRefine(final RefineHolderImpl refine, final Refine_leaf_stmtsContext refineStmt) {
1584 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1585 ParseTree refineArg = refineStmt.getChild(i);
1586 if (refineArg instanceof Default_stmtContext) {
1587 String defaultStr = stringFromNode(refineArg);
1588 refine.setDefaultStr(defaultStr);
1589 } else if (refineArg instanceof Mandatory_stmtContext) {
1590 for (int j = 0; j < refineArg.getChildCount(); j++) {
1591 ParseTree mandatoryTree = refineArg.getChild(j);
1592 if (mandatoryTree instanceof Mandatory_argContext) {
1593 Boolean mandatory = Boolean.valueOf(stringFromNode(mandatoryTree));
1594 refine.setMandatory(mandatory);
1597 } else if (refineArg instanceof Must_stmtContext) {
1598 MustDefinition must = parseMust((Must_stmtContext) refineArg);
1599 refine.setMust(must);
1606 private static RefineBuilder parseRefine(final RefineBuilder refine, final Refine_container_stmtsContext refineStmt) {
1607 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1608 ParseTree refineArg = refineStmt.getChild(i);
1609 if (refineArg instanceof Must_stmtContext) {
1610 MustDefinition must = parseMust((Must_stmtContext) refineArg);
1611 refine.setMust(must);
1612 } else if (refineArg instanceof Presence_stmtContext) {
1613 refine.setPresence(true);
1619 private static RefineBuilder parseRefine(final RefineHolderImpl refine, final Refine_list_stmtsContext refineStmt) {
1620 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1621 ParseTree refineArg = refineStmt.getChild(i);
1622 if (refineArg instanceof Must_stmtContext) {
1623 MustDefinition must = parseMust((Must_stmtContext) refineArg);
1624 refine.setMust(must);
1625 } else if (refineArg instanceof Max_elements_stmtContext) {
1626 Integer max = parseMaxElements((Max_elements_stmtContext) refineArg, refine.getModuleName());
1627 refine.setMaxElements(max);
1628 } else if (refineArg instanceof Min_elements_stmtContext) {
1629 Integer min = parseMinElements((Min_elements_stmtContext) refineArg, refine.getModuleName());
1630 refine.setMinElements(min);
1636 private static RefineBuilder parseRefine(final RefineHolderImpl refine, final Refine_leaf_list_stmtsContext refineStmt) {
1637 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1638 ParseTree refineArg = refineStmt.getChild(i);
1639 if (refineArg instanceof Must_stmtContext) {
1640 MustDefinition must = parseMust((Must_stmtContext) refineArg);
1641 refine.setMust(must);
1642 } else if (refineArg instanceof Max_elements_stmtContext) {
1643 Integer max = parseMaxElements((Max_elements_stmtContext) refineArg, refine.getModuleName());
1644 refine.setMaxElements(max);
1645 } else if (refineArg instanceof Min_elements_stmtContext) {
1646 Integer min = parseMinElements((Min_elements_stmtContext) refineArg, refine.getModuleName());
1647 refine.setMinElements(min);
1653 private static RefineBuilder parseRefine(final RefineHolderImpl refine, final Refine_choice_stmtsContext refineStmt) {
1654 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1655 ParseTree refineArg = refineStmt.getChild(i);
1656 if (refineArg instanceof Default_stmtContext) {
1657 String defaultStr = stringFromNode(refineArg);
1658 refine.setDefaultStr(defaultStr);
1659 } else if (refineArg instanceof Mandatory_stmtContext) {
1660 for (int j = 0; j < refineArg.getChildCount(); j++) {
1661 ParseTree mandatoryTree = refineArg.getChild(j);
1662 if (mandatoryTree instanceof Mandatory_argContext) {
1663 Boolean mandatory = Boolean.valueOf(stringFromNode(mandatoryTree));
1664 refine.setMandatory(mandatory);
1672 private static RefineBuilder parseRefine(final RefineBuilder refine, final Refine_anyxml_stmtsContext refineStmt) {
1673 for (int i = 0; i < refineStmt.getChildCount(); i++) {
1674 ParseTree refineArg = refineStmt.getChild(i);
1675 if (refineArg instanceof Must_stmtContext) {
1676 MustDefinition must = parseMust((Must_stmtContext) refineArg);
1677 refine.setMust(must);
1678 } else if (refineArg instanceof Mandatory_stmtContext) {
1679 for (int j = 0; j < refineArg.getChildCount(); j++) {
1680 ParseTree mandatoryTree = refineArg.getChild(j);
1681 if (mandatoryTree instanceof Mandatory_argContext) {
1682 Boolean mandatory = Boolean.valueOf(stringFromNode(mandatoryTree));
1683 refine.setMandatory(mandatory);
1691 public static String getArgumentString(final org.antlr.v4.runtime.ParserRuleContext ctx) {
1692 List<StringContext> potentialValues = ctx.getRuleContexts(StringContext.class);
1693 checkState(!potentialValues.isEmpty());
1694 return ParserListenerUtils.stringFromStringContext(potentialValues.get(0));
1697 public static <T extends ParserRuleContext> Optional<T> getFirstContext(final ParserRuleContext context,final Class<T> contextType) {
1698 List<T> potential = context.getRuleContexts(contextType);
1699 if(potential.isEmpty()) {
1700 return Optional.absent();
1702 return Optional.of(potential.get(0));