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/epl-v10.html
8 package org.opendaylight.yangtools.yang.parser.impl;
10 import static com.google.common.base.Preconditions.checkNotNull;
11 import static org.opendaylight.yangtools.yang.parser.builder.impl.BuilderUtils.fillAugmentTarget;
12 import static org.opendaylight.yangtools.yang.parser.builder.impl.BuilderUtils.findBaseIdentity;
13 import static org.opendaylight.yangtools.yang.parser.builder.impl.BuilderUtils.findModuleFromContext;
14 import static org.opendaylight.yangtools.yang.parser.builder.impl.BuilderUtils.findSchemaNodeInModule;
15 import static org.opendaylight.yangtools.yang.parser.builder.impl.BuilderUtils.findTargetNode;
16 import static org.opendaylight.yangtools.yang.parser.builder.impl.BuilderUtils.processAugmentation;
17 import static org.opendaylight.yangtools.yang.parser.builder.impl.TypeUtils.resolveType;
18 import static org.opendaylight.yangtools.yang.parser.builder.impl.TypeUtils.resolveTypeUnion;
19 import com.google.common.base.Optional;
20 import com.google.common.base.Preconditions;
21 import com.google.common.collect.HashBiMap;
22 import com.google.common.io.ByteSource;
24 import java.io.IOException;
25 import java.io.InputStream;
27 import java.util.ArrayList;
28 import java.util.Collection;
29 import java.util.Collections;
30 import java.util.Date;
31 import java.util.HashMap;
32 import java.util.HashSet;
33 import java.util.LinkedHashMap;
34 import java.util.LinkedHashSet;
35 import java.util.List;
37 import java.util.NavigableMap;
39 import java.util.TreeMap;
40 import javax.annotation.concurrent.Immutable;
41 import org.antlr.v4.runtime.ANTLRInputStream;
42 import org.antlr.v4.runtime.CommonTokenStream;
43 import org.antlr.v4.runtime.tree.ParseTree;
44 import org.antlr.v4.runtime.tree.ParseTreeWalker;
45 import org.opendaylight.yangtools.antlrv4.code.gen.YangLexer;
46 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser;
47 import org.opendaylight.yangtools.antlrv4.code.gen.YangParser.YangContext;
48 import org.opendaylight.yangtools.yang.common.QName;
49 import org.opendaylight.yangtools.yang.common.QNameModule;
50 import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
51 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
52 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
53 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
54 import org.opendaylight.yangtools.yang.model.api.ExtensionDefinition;
55 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
56 import org.opendaylight.yangtools.yang.model.api.Module;
57 import org.opendaylight.yangtools.yang.model.api.ModuleIdentifier;
58 import org.opendaylight.yangtools.yang.model.api.ModuleImport;
59 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
60 import org.opendaylight.yangtools.yang.model.api.SchemaNode;
61 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
62 import org.opendaylight.yangtools.yang.model.parser.api.YangContextParser;
63 import org.opendaylight.yangtools.yang.model.parser.api.YangSyntaxErrorException;
64 import org.opendaylight.yangtools.yang.parser.builder.api.AugmentationSchemaBuilder;
65 import org.opendaylight.yangtools.yang.parser.builder.api.AugmentationTargetBuilder;
66 import org.opendaylight.yangtools.yang.parser.builder.api.Builder;
67 import org.opendaylight.yangtools.yang.parser.builder.api.DataNodeContainerBuilder;
68 import org.opendaylight.yangtools.yang.parser.builder.api.DataSchemaNodeBuilder;
69 import org.opendaylight.yangtools.yang.parser.builder.api.ExtensionBuilder;
70 import org.opendaylight.yangtools.yang.parser.builder.api.GroupingBuilder;
71 import org.opendaylight.yangtools.yang.parser.builder.api.SchemaNodeBuilder;
72 import org.opendaylight.yangtools.yang.parser.builder.api.TypeAwareBuilder;
73 import org.opendaylight.yangtools.yang.parser.builder.api.UnknownSchemaNodeBuilder;
74 import org.opendaylight.yangtools.yang.parser.builder.api.UsesNodeBuilder;
75 import org.opendaylight.yangtools.yang.parser.builder.impl.BuilderUtils;
76 import org.opendaylight.yangtools.yang.parser.builder.impl.ChoiceBuilder;
77 import org.opendaylight.yangtools.yang.parser.builder.impl.ChoiceCaseBuilder;
78 import org.opendaylight.yangtools.yang.parser.builder.impl.GroupingUtils;
79 import org.opendaylight.yangtools.yang.parser.builder.impl.IdentitySchemaNodeBuilder;
80 import org.opendaylight.yangtools.yang.parser.builder.impl.IdentityrefTypeBuilder;
81 import org.opendaylight.yangtools.yang.parser.builder.impl.ModuleBuilder;
82 import org.opendaylight.yangtools.yang.parser.builder.impl.ModuleImpl;
83 import org.opendaylight.yangtools.yang.parser.builder.impl.UnionTypeBuilder;
84 import org.opendaylight.yangtools.yang.parser.builder.util.Comparators;
85 import org.opendaylight.yangtools.yang.parser.util.ModuleDependencySort;
86 import org.opendaylight.yangtools.yang.parser.util.NamedByteArrayInputStream;
87 import org.opendaylight.yangtools.yang.parser.util.NamedFileInputStream;
88 import org.opendaylight.yangtools.yang.parser.util.NamedInputStream;
89 import org.opendaylight.yangtools.yang.parser.util.YangParseException;
90 import org.slf4j.Logger;
91 import org.slf4j.LoggerFactory;
94 public final class YangParserImpl implements YangContextParser {
95 private static final Logger LOG = LoggerFactory.getLogger(YangParserImpl.class);
96 private static final YangParserImpl INSTANCE = new YangParserImpl();
98 public static YangParserImpl getInstance() {
104 public Set<Module> parseYangModels(final File yangFile, final File directory) {
106 return parseFile(yangFile, directory).getModules();
107 } catch (IOException | YangSyntaxErrorException e) {
108 throw new YangParseException("Failed to parse yang data", e);
113 public SchemaContext parseFile(final File yangFile, final File directory) throws IOException, YangSyntaxErrorException {
114 Preconditions.checkState(yangFile.exists(), yangFile + " does not exists");
115 Preconditions.checkState(directory.exists(), directory + " does not exists");
116 Preconditions.checkState(directory.isDirectory(), directory + " is not a directory");
118 final String yangFileName = yangFile.getName();
119 final String[] fileList = checkNotNull(directory.list(), directory + " not found or is not a directory");
121 Map<ByteSource, File> sourceToFile = new LinkedHashMap<>();
122 ByteSource mainFileSource = BuilderUtils.fileToByteSource(yangFile);
123 sourceToFile.put(mainFileSource, yangFile);
125 for (String fileName : fileList) {
126 if (fileName.equals(yangFileName)) {
129 File dependency = new File(directory, fileName);
130 if (dependency.isFile()) {
131 sourceToFile.put(BuilderUtils.fileToByteSource(dependency), dependency);
135 Map<ByteSource, ModuleBuilder> sourceToBuilder = parseSourcesToBuilders(sourceToFile.keySet(), null);
136 ModuleBuilder main = sourceToBuilder.get(mainFileSource);
138 List<ModuleBuilder> moduleBuilders = new ArrayList<>();
139 moduleBuilders.add(main);
140 filterImports(main, new ArrayList<>(sourceToBuilder.values()), moduleBuilders);
141 Collection<ModuleBuilder> resolved = resolveSubmodules(moduleBuilders);
143 // module builders sorted by dependencies
144 List<ModuleBuilder> sortedBuilders = ModuleDependencySort.sort(resolved);
145 Map<URI, NavigableMap<Date, ModuleBuilder>> modules = resolveModulesWithImports(sortedBuilders, null);
146 Collection<Module> unsorted = build(modules).values();
147 Set<Module> result = new LinkedHashSet<>(
148 ModuleDependencySort.sort(unsorted.toArray(new Module[unsorted.size()])));
149 return resolveSchemaContext(result);
154 public Set<Module> parseYangModels(final List<File> yangFiles) {
155 return parseFiles(yangFiles).getModules();
159 public SchemaContext parseFiles(final Collection<File> yangFiles) {
160 Collection<Module> unsorted = parseYangModelsMapped(yangFiles).values();
161 Set<Module> sorted = new LinkedHashSet<>(
162 ModuleDependencySort.sort(unsorted.toArray(new Module[unsorted.size()])));
163 return resolveSchemaContext(sorted);
168 public Set<Module> parseYangModels(final List<File> yangFiles, final SchemaContext context) {
170 return parseFiles(yangFiles, context).getModules();
171 } catch (IOException | YangSyntaxErrorException e) {
172 throw new YangParseException("Failed to parse yang data", e);
177 public SchemaContext parseFiles(final Collection<File> yangFiles, final SchemaContext context) throws IOException,
178 YangSyntaxErrorException {
179 if (yangFiles == null) {
180 return resolveSchemaContext(Collections.<Module> emptySet());
183 Collection<ByteSource> sources = BuilderUtils.filesToByteSources(yangFiles);
184 return parseSources(sources, context);
189 public Set<Module> parseYangModelsFromStreams(final List<InputStream> yangModelStreams) {
191 Collection<ByteSource> sources = BuilderUtils.streamsToByteSources(yangModelStreams);
192 return parseSources(sources).getModules();
193 } catch (IOException | YangSyntaxErrorException e) {
194 throw new YangParseException("Failed to parse yang data", e);
199 public SchemaContext parseSources(final Collection<ByteSource> sources) throws IOException,YangSyntaxErrorException {
200 return assembleContext(parseYangModelSources(sources, null).values());
205 public Set<Module> parseYangModelsFromStreams(final List<InputStream> yangModelStreams, final SchemaContext context) {
207 Collection<ByteSource> sources = BuilderUtils.streamsToByteSources(yangModelStreams);
208 return parseSources(sources, context).getModules();
209 } catch (IOException | YangSyntaxErrorException e) {
210 throw new YangParseException("Failed to parse yang data", e);
215 public SchemaContext parseSources(final Collection<ByteSource> sources, final SchemaContext context)
216 throws IOException, YangSyntaxErrorException {
217 if (sources == null) {
218 return resolveSchemaContext(Collections.<Module> emptySet());
221 final List<ModuleBuilder> sorted = resolveModuleBuilders(sources, context);
222 final Map<URI, NavigableMap<Date, ModuleBuilder>> modules = resolveModulesWithImports(sorted, context);
224 final Set<Module> unsorted = new LinkedHashSet<>(build(modules).values());
225 if (context != null) {
226 for (Module m : context.getModules()) {
227 if (!unsorted.contains(m)) {
232 Set<Module> result = new LinkedHashSet<>(
233 ModuleDependencySort.sort(unsorted.toArray(new Module[unsorted.size()])));
234 return resolveSchemaContext(result);
237 private static Map<URI, NavigableMap<Date, ModuleBuilder>> resolveModulesWithImports(final List<ModuleBuilder> sorted,
238 final SchemaContext context) {
239 final Map<URI, NavigableMap<Date, ModuleBuilder>> modules = orderModules(sorted);
240 for (ModuleBuilder module : sorted) {
241 if (module != null) {
242 for (ModuleImport imp : module.getImports().values()) {
243 String prefix = imp.getPrefix();
244 ModuleBuilder targetModule = BuilderUtils.findModuleFromBuilders(imp, sorted);
245 if (targetModule == null) {
246 Module result = findModuleFromContext(context, module, prefix, 0);
247 targetModule = new ModuleBuilder(result);
248 NavigableMap<Date, ModuleBuilder> map = modules.get(targetModule.getNamespace());
250 map = new TreeMap<>();
251 map.put(targetModule.getRevision(), targetModule);
252 modules.put(targetModule.getNamespace(), map);
254 map.put(targetModule.getRevision(), targetModule);
257 module.addImportedModule(prefix, targetModule);
265 public Map<File, Module> parseYangModelsMapped(final Collection<File> yangFiles) {
266 if (yangFiles == null || yangFiles.isEmpty()) {
267 return Collections.emptyMap();
270 Map<ByteSource, File> byteSourceToFile = new HashMap<>();
271 for (final File file : yangFiles) {
272 ByteSource source = new ByteSource() {
274 public InputStream openStream() throws IOException {
275 return new NamedFileInputStream(file, file.getPath());
278 byteSourceToFile.put(source, file);
281 Map<ByteSource, Module> byteSourceToModule;
283 byteSourceToModule = parseYangModelSources(byteSourceToFile.keySet(), null);
284 } catch (IOException | YangSyntaxErrorException e) {
285 throw new YangParseException("Failed to parse yang data", e);
287 Map<File, Module> result = new LinkedHashMap<>();
288 for (Map.Entry<ByteSource, Module> entry : byteSourceToModule.entrySet()) {
289 result.put(byteSourceToFile.get(entry.getKey()), entry.getValue());
295 public Map<InputStream, Module> parseYangModelsFromStreamsMapped(final Collection<InputStream> yangModelStreams) {
296 if (yangModelStreams == null || yangModelStreams.isEmpty()) {
297 return Collections.emptyMap();
300 Map<ByteSource, InputStream> sourceToStream = new HashMap<>();
301 for (final InputStream stream : yangModelStreams) {
302 ByteSource source = new ByteSource() {
304 public InputStream openStream() throws IOException {
305 return NamedByteArrayInputStream.create(stream);
308 sourceToStream.put(source, stream);
311 Map<ByteSource, Module> sourceToModule;
313 sourceToModule = parseYangModelSources(sourceToStream.keySet(), null);
314 } catch (IOException | YangSyntaxErrorException e) {
315 throw new YangParseException("Failed to parse yang data", e);
317 Map<InputStream, Module> result = new LinkedHashMap<>();
318 for (Map.Entry<ByteSource, Module> entry : sourceToModule.entrySet()) {
319 result.put(sourceToStream.get(entry.getKey()), entry.getValue());
325 public SchemaContext resolveSchemaContext(final Set<Module> modules) {
326 // after merging parse method with this one, add support for getting
327 // submodule sources.
328 Map<ModuleIdentifier, String> identifiersToSources = new HashMap<>();
329 for (Module module : modules) {
330 ModuleImpl moduleImpl = (ModuleImpl) module;
331 identifiersToSources.put(module, moduleImpl.getSource());
333 return new SchemaContextImpl(modules, identifiersToSources);
336 public Collection<Module> buildModules(final Collection<ModuleBuilder> builders) {
337 Collection<ModuleBuilder> unsorted = resolveSubmodules(builders);
338 List<ModuleBuilder> sorted = ModuleDependencySort.sort(unsorted);
339 Map<URI, NavigableMap<Date, ModuleBuilder>> modules = resolveModulesWithImports(sorted, null);
340 Map<ModuleBuilder, Module> builderToModule = build(modules);
341 return builderToModule.values();
344 public SchemaContext assembleContext(final Collection<Module> modules) {
345 final Set<Module> sorted = new LinkedHashSet<>(
346 ModuleDependencySort.sort(modules.toArray(new Module[modules.size()])));
347 return resolveSchemaContext(sorted);
350 private Map<ByteSource, Module> parseYangModelSources(final Collection<ByteSource> sources, final SchemaContext context) throws IOException, YangSyntaxErrorException {
351 if (sources == null || sources.isEmpty()) {
352 return Collections.emptyMap();
355 Map<ByteSource, ModuleBuilder> sourceToBuilder = resolveSources(sources, context);
356 // sort and check for duplicates
357 List<ModuleBuilder> sorted = ModuleDependencySort.sort(sourceToBuilder.values());
358 Map<URI, NavigableMap<Date, ModuleBuilder>> modules = resolveModulesWithImports(sorted, null);
359 Map<ModuleBuilder, Module> builderToModule = build(modules);
360 Map<ModuleBuilder, ByteSource> builderToSource = HashBiMap.create(sourceToBuilder).inverse();
361 sorted = ModuleDependencySort.sort(builderToModule.keySet());
363 Map<ByteSource, Module> result = new LinkedHashMap<>();
364 for (ModuleBuilder moduleBuilder : sorted) {
365 Module value = checkNotNull(builderToModule.get(moduleBuilder), "Cannot get module for %s", moduleBuilder);
366 result.put(builderToSource.get(moduleBuilder), value);
373 * Parse streams and resolve submodules.
376 * collection of streams to parse
377 * @return map, where key is source stream and value is module builder
379 * @throws YangSyntaxErrorException
381 // TODO: remove ByteSource result after removing YangModelParser
382 private Map<ByteSource, ModuleBuilder> resolveSources(final Collection<ByteSource> streams, final SchemaContext context) throws IOException, YangSyntaxErrorException {
383 Map<ByteSource, ModuleBuilder> builders = parseSourcesToBuilders(streams, context);
384 return resolveSubmodules(builders);
387 private static Map<ByteSource, ModuleBuilder> parseSourcesToBuilders(final Collection<ByteSource> sources,
388 final SchemaContext context) throws IOException, YangSyntaxErrorException {
389 final ParseTreeWalker walker = new ParseTreeWalker();
390 final Map<ByteSource, ParseTree> sourceToTree = parseYangSources(sources);
391 final Map<ByteSource, ModuleBuilder> sourceToBuilder = new LinkedHashMap<>();
394 new YangModelBasicValidator(walker).validate(sourceToTree.values());
396 Map<String, NavigableMap<Date, URI>> namespaceContext = BuilderUtils.createYangNamespaceContext(
397 sourceToTree.values(), Optional.fromNullable(context));
398 YangParserListenerImpl yangModelParser;
399 for (Map.Entry<ByteSource, ParseTree> entry : sourceToTree.entrySet()) {
400 ByteSource source = entry.getKey();
401 String path = null; // TODO refactor to Optional
402 // TODO refactor so that path can be retrieved without opening
403 // stream: NamedInputStream -> NamedByteSource ?
404 try (InputStream stream = source.openStream()) {
405 if (stream instanceof NamedInputStream) {
406 path = stream.toString();
409 yangModelParser = new YangParserListenerImpl(namespaceContext, path);
410 walker.walk(yangModelParser, entry.getValue());
411 ModuleBuilder moduleBuilder = yangModelParser.getModuleBuilder();
412 moduleBuilder.setSource(source);
413 sourceToBuilder.put(source, moduleBuilder);
415 return sourceToBuilder;
418 private Map<ByteSource, ModuleBuilder> resolveSubmodules(final Map<ByteSource, ModuleBuilder> builders) {
419 Map<ByteSource, ModuleBuilder> modules = new HashMap<>();
420 Map<String, NavigableMap<Date, ModuleBuilder>> submodules = new HashMap<>();
421 for (Map.Entry<ByteSource, ModuleBuilder> entry : builders.entrySet()) {
422 ModuleBuilder builder = entry.getValue();
423 if (builder.isSubmodule()) {
424 String submoduleName = builder.getName();
425 NavigableMap<Date, ModuleBuilder> map = submodules.get(submoduleName);
427 map = new TreeMap<>();
428 map.put(builder.getRevision(), builder);
429 submodules.put(submoduleName, map);
431 map.put(builder.getRevision(), builder);
434 modules.put(entry.getKey(), builder);
438 for (ModuleBuilder module : modules.values()) {
439 resolveSubmodules(module, submodules);
445 private Collection<ModuleBuilder> resolveSubmodules(final Collection<ModuleBuilder> builders) {
446 Collection<ModuleBuilder> modules = new HashSet<>();
447 Map<String, NavigableMap<Date, ModuleBuilder>> submodules = new HashMap<>();
448 for (ModuleBuilder builder : builders) {
449 if (builder.isSubmodule()) {
450 String submoduleName = builder.getName();
451 NavigableMap<Date, ModuleBuilder> map = submodules.get(submoduleName);
453 map = new TreeMap<>();
454 map.put(builder.getRevision(), builder);
455 submodules.put(submoduleName, map);
457 map.put(builder.getRevision(), builder);
460 modules.add(builder);
464 for (ModuleBuilder module : modules) {
465 resolveSubmodules(module, submodules);
472 * Traverse collection of builders, find builders representing submodule and
473 * add this submodule to its parent module.
478 * collection all loaded submodules
479 * @return collection of module builders with resolved submodules
481 private void resolveSubmodules(final ModuleBuilder module,
482 final Map<String, NavigableMap<Date, ModuleBuilder>> submodules) {
483 Map<String, Date> includes = module.getIncludedModules();
484 for (Map.Entry<String, Date> entry : includes.entrySet()) {
485 NavigableMap<Date, ModuleBuilder> subs = submodules.get(entry.getKey());
487 throw new YangParseException("Failed to find references submodule " + entry.getKey() + " in module "
490 Date rev = entry.getValue();
491 ModuleBuilder submodule;
493 submodule = subs.lastEntry().getValue();
495 submodule = subs.get(rev);
496 // FIXME an exception should be thrown after issue with
497 // submodule's revisions and namespaces will be resolved
498 if (submodule == null) {
499 submodule = subs.lastEntry().getValue();
503 if (!submodule.getIncludedModules().isEmpty()) {
504 resolveSubmodules(submodule, submodules);
506 addSubmoduleToModule(submodule, module);
510 private static void addSubmoduleToModule(final ModuleBuilder submodule, final ModuleBuilder module) {
511 module.addSubmodule(submodule);
512 submodule.setParent(module);
513 module.getDirtyNodes().addAll(submodule.getDirtyNodes());
514 module.getImports().putAll(submodule.getImports());
515 module.getAugments().addAll(submodule.getAugments());
516 module.getAugmentBuilders().addAll(submodule.getAugmentBuilders());
517 module.getAllAugments().addAll(submodule.getAllAugments());
518 module.getChildNodeBuilders().addAll(submodule.getChildNodeBuilders());
519 module.getChildNodes().putAll(submodule.getChildNodes());
520 module.getGroupings().addAll(submodule.getGroupings());
521 module.getGroupingBuilders().addAll(submodule.getGroupingBuilders());
522 module.getTypeDefinitions().addAll(submodule.getTypeDefinitions());
523 module.getTypeDefinitionBuilders().addAll(submodule.getTypeDefinitionBuilders());
524 module.getUsesNodes().addAll(submodule.getUsesNodes());
525 module.getUsesNodeBuilders().addAll(submodule.getUsesNodeBuilders());
526 module.getAllGroupings().addAll(submodule.getAllGroupings());
527 module.getAllUsesNodes().addAll(submodule.getAllUsesNodes());
528 module.getRpcs().addAll(submodule.getRpcs());
529 module.getAddedRpcs().addAll(submodule.getAddedRpcs());
530 module.getNotifications().addAll(submodule.getNotifications());
531 module.getAddedNotifications().addAll(submodule.getAddedNotifications());
532 module.getIdentities().addAll(submodule.getIdentities());
533 module.getAddedIdentities().addAll(submodule.getAddedIdentities());
534 module.getFeatures().addAll(submodule.getFeatures());
535 module.getAddedFeatures().addAll(submodule.getAddedFeatures());
536 module.getDeviations().addAll(submodule.getDeviations());
537 module.getDeviationBuilders().addAll(submodule.getDeviationBuilders());
538 module.getExtensions().addAll(submodule.getExtensions());
539 module.getAddedExtensions().addAll(submodule.getAddedExtensions());
540 module.getUnknownNodes().addAll(submodule.getUnknownNodes());
541 module.getAllUnknownNodes().addAll(submodule.getAllUnknownNodes());
544 private List<ModuleBuilder> resolveModuleBuilders(final Collection<ByteSource> yangFileStreams,
545 final SchemaContext context) throws IOException, YangSyntaxErrorException {
546 Map<ByteSource, ModuleBuilder> parsedBuilders = resolveSources(yangFileStreams, context);
547 ModuleBuilder[] builders = new ModuleBuilder[parsedBuilders.size()];
548 parsedBuilders.values().toArray(builders);
550 // module dependency graph sorted
551 List<ModuleBuilder> sorted;
552 if (context == null) {
553 sorted = ModuleDependencySort.sort(builders);
555 sorted = ModuleDependencySort.sortWithContext(context, builders);
561 * Order modules by namespace and revision.
564 * topologically sorted modules
565 * @return modules ordered by namespace and revision
567 private static Map<URI, NavigableMap<Date, ModuleBuilder>> orderModules(final List<ModuleBuilder> modules) {
568 final Map<URI, NavigableMap<Date, ModuleBuilder>> result = new LinkedHashMap<>();
569 for (final ModuleBuilder builder : modules) {
570 if (builder == null) {
574 URI ns = builder.getNamespace();
575 Date rev = builder.getRevision();
580 NavigableMap<Date, ModuleBuilder> builderByRevision = result.get(ns);
581 if (builderByRevision == null) {
582 builderByRevision = new TreeMap<>();
583 builderByRevision.put(rev, builder);
584 result.put(ns, builderByRevision);
586 builderByRevision.put(rev, builder);
594 * Find {@code main} dependencies from {@code other} and add them to
602 * collection to fill up
604 private void filterImports(final ModuleBuilder main, final Collection<ModuleBuilder> other,
605 final Collection<ModuleBuilder> filtered) {
606 Map<String, ModuleImport> imports = main.getImports();
608 // if this is submodule, add parent to filtered and pick its imports
609 if (main.isSubmodule()) {
610 NavigableMap<Date, ModuleBuilder> dependencies = new TreeMap<>();
611 for (ModuleBuilder mb : other) {
612 if (mb.getName().equals(main.getBelongsTo())) {
613 dependencies.put(mb.getRevision(), mb);
616 ModuleBuilder parent = dependencies.get(dependencies.firstKey());
617 filtered.add(parent);
618 imports.putAll(parent.getImports());
621 for (ModuleImport mi : imports.values()) {
622 for (ModuleBuilder builder : other) {
623 if (mi.getModuleName().equals(builder.getModuleName())) {
624 if (mi.getRevision() == null) {
625 if (!filtered.contains(builder)) {
626 filtered.add(builder);
627 filterImports(builder, other, filtered);
630 if (!filtered.contains(builder) && mi.getRevision().equals(builder.getRevision())) {
631 filtered.add(builder);
632 filterImports(builder, other, filtered);
640 private static Map<ByteSource, ParseTree> parseYangSources(final Collection<ByteSource> sources) throws IOException, YangSyntaxErrorException {
641 final Map<ByteSource, ParseTree> trees = new HashMap<>();
642 for (ByteSource source : sources) {
643 try (InputStream stream = source.openStream()) {
644 trees.put(source, parseYangSource(stream));
650 public static YangContext parseYangSource(final InputStream stream) throws IOException, YangSyntaxErrorException {
651 final YangLexer lexer = new YangLexer(new ANTLRInputStream(stream));
652 final CommonTokenStream tokens = new CommonTokenStream(lexer);
653 final YangParser parser = new YangParser(tokens);
654 parser.removeErrorListeners();
656 final YangErrorListener errorListener = new YangErrorListener();
657 parser.addErrorListener(errorListener);
659 final YangContext result = parser.yang();
660 errorListener.validate();
666 * Mini parser: This parsing context does not validate full YANG module,
667 * only parses header up to the revisions and imports.
669 * @param yangStream input stream containing a yang module
670 * @return new instance of YangContext
671 * @see org.opendaylight.yangtools.yang.parser.impl.util.YangModelDependencyInfo
673 public static YangContext parseStreamWithoutErrorListeners(final InputStream yangStream) {
674 YangContext result = null;
676 final ANTLRInputStream input = new ANTLRInputStream(yangStream);
677 final YangLexer lexer = new YangLexer(input);
678 final CommonTokenStream tokens = new CommonTokenStream(lexer);
679 final YangParser parser = new YangParser(tokens);
680 parser.removeErrorListeners();
681 result = parser.yang();
682 } catch (IOException e) {
683 LOG.warn("Exception while reading yang file: " + yangStream, e);
689 * Creates builder-to-module map based on given modules. Method first
690 * resolve unresolved type references, instantiate groupings through uses
691 * statements and perform augmentation.
693 * Node resolving must be performed in following order:
696 * unresolved type references</li>
698 * uses in groupings</li>
700 * uses in other nodes</li>
707 * @return modules mapped on their builders
709 private Map<ModuleBuilder, Module> build(final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
710 resolveDirtyNodes(modules);
711 resolveAugmentsTargetPath(modules);
712 resolveUsesTargetGrouping(modules);
713 resolveUsesForGroupings(modules);
714 resolveUsesForNodes(modules);
715 resolveAugments(modules);
716 resolveIdentities(modules);
717 checkChoiceCasesForDuplicityQNames(modules);
720 final Map<ModuleBuilder, Module> result = new LinkedHashMap<>();
721 for (Map.Entry<URI, NavigableMap<Date, ModuleBuilder>> entry : modules.entrySet()) {
722 for (Map.Entry<Date, ModuleBuilder> childEntry : entry.getValue().entrySet()) {
723 final ModuleBuilder moduleBuilder = childEntry.getValue();
724 final Module module = moduleBuilder.build();
725 result.put(moduleBuilder, module);
732 * Resolve all unresolved type references.
737 private static void resolveDirtyNodes(final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
738 for (Map.Entry<URI, NavigableMap<Date, ModuleBuilder>> entry : modules.entrySet()) {
739 for (Map.Entry<Date, ModuleBuilder> childEntry : entry.getValue().entrySet()) {
740 final ModuleBuilder module = childEntry.getValue();
741 resolveUnknownNodes(modules, module);
742 resolveDirtyNodes(modules, module);
748 * Search for dirty nodes (node which contains UnknownType) and resolve
752 * all available modules
756 private static void resolveDirtyNodes(final Map<URI, NavigableMap<Date, ModuleBuilder>> modules, final ModuleBuilder module) {
757 final Set<TypeAwareBuilder> dirtyNodes = module.getDirtyNodes();
758 if (!dirtyNodes.isEmpty()) {
759 for (TypeAwareBuilder nodeToResolve : dirtyNodes) {
760 if (nodeToResolve instanceof UnionTypeBuilder) {
761 // special handling for union types
762 resolveTypeUnion((UnionTypeBuilder) nodeToResolve, modules, module);
763 } else if (nodeToResolve.getTypedef() instanceof IdentityrefTypeBuilder) {
764 // special handling for identityref types
765 IdentityrefTypeBuilder idref = (IdentityrefTypeBuilder) nodeToResolve.getTypedef();
766 IdentitySchemaNodeBuilder identity = findBaseIdentity(module, idref.getBaseString(),
768 if (identity == null) {
769 throw new YangParseException(module.getName(), idref.getLine(), "Failed to find base identity");
771 idref.setBaseIdentity(identity);
772 nodeToResolve.setType(idref.build());
774 resolveType(nodeToResolve, modules, module);
781 * Traverse through augmentations of modules and fix their child nodes
787 private void resolveAugmentsTargetPath(final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
788 // collect augments from all loaded modules
789 final List<AugmentationSchemaBuilder> allAugments = new ArrayList<>();
790 for (Map.Entry<URI, NavigableMap<Date, ModuleBuilder>> entry : modules.entrySet()) {
791 for (Map.Entry<Date, ModuleBuilder> inner : entry.getValue().entrySet()) {
792 allAugments.addAll(inner.getValue().getAllAugments());
796 for (AugmentationSchemaBuilder augment : allAugments) {
797 setCorrectAugmentTargetPath(augment);
802 * Find augment target and set correct schema path for all its child nodes.
807 private void setCorrectAugmentTargetPath(final AugmentationSchemaBuilder augment) {
808 Builder parent = augment.getParent();
809 final SchemaPath targetNodeSchemaPath;
811 if (parent instanceof UsesNodeBuilder) {
812 targetNodeSchemaPath = findUsesAugmentTargetNodePath(((UsesNodeBuilder) parent).getParent(), augment);
814 targetNodeSchemaPath = augment.getTargetPath();
817 for (DataSchemaNodeBuilder childNode : augment.getChildNodeBuilders()) {
818 correctPathForAugmentNodes(childNode, targetNodeSchemaPath);
822 private static SchemaPath findUsesAugmentTargetNodePath(final DataNodeContainerBuilder usesParent,
823 final AugmentationSchemaBuilder augment) {
824 QName parentQName = usesParent.getQName();
825 final QNameModule qnm;
826 if (parentQName == null) {
827 ModuleBuilder m = BuilderUtils.getParentModule(usesParent);
828 qnm = m.getQNameModule();
830 qnm = parentQName.getModule();
833 SchemaPath path = usesParent.getPath();
834 for (QName qname : augment.getTargetPath().getPathFromRoot()) {
835 path = path.createChild(QName.create(qnm, qname.getLocalName()));
842 * Set new schema path to node and all its child nodes based on given parent
843 * path. This method do not change the namespace.
846 * node which schema path should be updated
848 * schema path of parent node
850 private void correctPathForAugmentNodes(final DataSchemaNodeBuilder node, final SchemaPath parentPath) {
851 SchemaPath newPath = parentPath.createChild(node.getQName());
852 node.setPath(newPath);
853 if (node instanceof DataNodeContainerBuilder) {
854 for (DataSchemaNodeBuilder child : ((DataNodeContainerBuilder) node).getChildNodeBuilders()) {
855 correctPathForAugmentNodes(child, node.getPath());
858 if (node instanceof ChoiceBuilder) {
859 for (ChoiceCaseBuilder child : ((ChoiceBuilder) node).getCases()) {
860 correctPathForAugmentNodes(child, node.getPath());
866 * Check augments for mandatory nodes. If the target node is in another
867 * module, then nodes added by the augmentation MUST NOT be mandatory nodes.
868 * If mandatory node is found, throw an exception.
873 private static void checkAugmentMandatoryNodes(final Collection<AugmentationSchemaBuilder> augments) {
874 for (AugmentationSchemaBuilder augment : augments) {
875 URI augmentTargetNs = augment.getTargetPath().getPathFromRoot().iterator().next().getNamespace();
876 Date augmentTargetRev = augment.getTargetPath().getPathFromRoot().iterator().next().getRevision();
877 ModuleBuilder module = BuilderUtils.getParentModule(augment);
879 if (augmentTargetNs.equals(module.getNamespace()) && augmentTargetRev.equals(module.getRevision())) {
883 for (DataSchemaNodeBuilder childNode : augment.getChildNodeBuilders()) {
884 if (childNode.getConstraints().isMandatory()) {
885 throw new YangParseException(augment.getModuleName(), augment.getLine(),
886 "Error in augment parsing: cannot augment mandatory node "
887 + childNode.getQName().getLocalName());
894 * Go through all augment definitions and resolve them.
897 * all loaded modules topologically sorted (based on dependencies
898 * between each other)
900 private static void resolveAugments(final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
901 List<ModuleBuilder> all = new ArrayList<>();
902 for (Map.Entry<URI, NavigableMap<Date, ModuleBuilder>> entry : modules.entrySet()) {
903 for (Map.Entry<Date, ModuleBuilder> inner : entry.getValue().entrySet()) {
904 all.add(inner.getValue());
908 for (ModuleBuilder mb : all) {
910 List<AugmentationSchemaBuilder> augments = mb.getAllAugments();
911 checkAugmentMandatoryNodes(augments);
912 Collections.sort(augments, Comparators.AUGMENT_BUILDER_COMP);
913 for (AugmentationSchemaBuilder augment : augments) {
914 if (!(augment.isResolved())) {
915 boolean resolved = resolveAugment(augment, mb, modules);
917 throw new YangParseException(augment.getModuleName(), augment.getLine(),
918 "Error in augment parsing: failed to find augment target: " + augment);
927 * Perform augmentation defined under uses statement.
935 * @return true if augment process succeed
937 private static boolean resolveUsesAugment(final AugmentationSchemaBuilder augment, final ModuleBuilder module,
938 final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
939 if (augment.isResolved()) {
943 UsesNodeBuilder usesNode = (UsesNodeBuilder) augment.getParent();
944 DataNodeContainerBuilder parentNode = usesNode.getParent();
945 Optional<SchemaNodeBuilder> potentialTargetNode;
946 SchemaPath resolvedTargetPath = findUsesAugmentTargetNodePath(parentNode, augment);
947 if (parentNode instanceof ModuleBuilder && resolvedTargetPath.isAbsolute()) {
948 // Uses is directly used in module body, we lookup
949 // We lookup in data namespace to find correct augmentation target
950 potentialTargetNode = findSchemaNodeInModule(resolvedTargetPath, (ModuleBuilder) parentNode);
952 // Uses is used in local context (be it data namespace or grouping
954 // since all nodes via uses are imported to localName, it is safe to
955 // to proceed only with local names.
957 // Conflicting elements in other namespaces are still not present
958 // since resolveUsesAugment occurs before augmenting from external
960 potentialTargetNode = Optional.<SchemaNodeBuilder> fromNullable(findTargetNode(augment.getTargetPath()
961 .getPathFromRoot(), parentNode));
964 if (potentialTargetNode.isPresent()) {
965 SchemaNodeBuilder targetNode = potentialTargetNode.get();
966 if (targetNode instanceof AugmentationTargetBuilder) {
967 fillAugmentTarget(augment, targetNode);
968 ((AugmentationTargetBuilder) targetNode).addAugmentation(augment);
969 augment.setResolved(true);
973 "Error in module {} at line {}: Unsupported augment target: {}. Augmentation process skipped.",
974 module.getName(), augment.getLine(), potentialTargetNode);
975 augment.setResolved(true);
976 augment.setUnsupportedTarget(true);
980 throw new YangParseException(module.getName(), augment.getLine(), String.format(
981 "Failed to resolve augment in uses. Invalid augment target path: %s", augment.getTargetPath()));
987 * Find augment target module and perform augmentation.
995 * @return true if augment process succeed
997 private static boolean resolveAugment(final AugmentationSchemaBuilder augment, final ModuleBuilder module,
998 final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
999 if (augment.isResolved()) {
1003 QName targetModuleName = augment.getTargetPath().getPathFromRoot().iterator().next();
1004 ModuleBuilder targetModule = BuilderUtils.findModule(targetModuleName, modules);
1005 if (targetModule == null) {
1006 throw new YangParseException(module.getModuleName(), augment.getLine(), "Failed to resolve augment "
1010 return processAugmentation(augment, targetModule);
1014 * Go through identity statements defined in current module and resolve
1015 * their 'base' statement.
1018 * all loaded modules
1020 private static void resolveIdentities(final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
1021 for (Map.Entry<URI, NavigableMap<Date, ModuleBuilder>> entry : modules.entrySet()) {
1022 for (Map.Entry<Date, ModuleBuilder> inner : entry.getValue().entrySet()) {
1023 ModuleBuilder module = inner.getValue();
1024 final Set<IdentitySchemaNodeBuilder> identities = module.getAddedIdentities();
1025 for (IdentitySchemaNodeBuilder identity : identities) {
1026 resolveIdentity(module, identity);
1032 private static void resolveIdentity(final ModuleBuilder module,
1033 final IdentitySchemaNodeBuilder identity) {
1034 final String baseIdentityName = identity.getBaseIdentityName();
1035 if (baseIdentityName != null) {
1036 IdentitySchemaNodeBuilder result = null;
1037 if (baseIdentityName.contains(":")) {
1038 final int line = identity.getLine();
1039 String[] splittedBase = baseIdentityName.split(":");
1040 if (splittedBase.length > 2) {
1041 throw new YangParseException(module.getName(), line,
1042 "Failed to parse identityref base: "
1043 + baseIdentityName);
1045 String prefix = splittedBase[0];
1046 String name = splittedBase[1];
1048 if (prefix.equals(module.getPrefix())
1049 && name.equals(identity.getQName().getLocalName())) {
1050 throw new YangParseException(module.getName(),
1052 "Failed to parse base, identity name equals base identity name: "
1053 + baseIdentityName);
1056 ModuleBuilder dependentModule = BuilderUtils.getModuleByPrefix(
1058 result = BuilderUtils.findIdentity(
1059 dependentModule.getAddedIdentities(), name);
1061 if (baseIdentityName.equals(identity.getQName().getLocalName())) {
1062 throw new YangParseException(module.getName(),
1064 "Failed to parse base, identity name equals base identity name: "
1065 + baseIdentityName);
1067 result = BuilderUtils.findIdentity(module.getAddedIdentities(),
1070 identity.setBaseIdentity(result);
1075 * Find and add reference of uses target grouping.
1078 * all loaded modules
1080 private static void resolveUsesTargetGrouping(final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
1081 final List<UsesNodeBuilder> allUses = new ArrayList<>();
1082 for (Map.Entry<URI, NavigableMap<Date, ModuleBuilder>> entry : modules.entrySet()) {
1083 for (Map.Entry<Date, ModuleBuilder> inner : entry.getValue().entrySet()) {
1084 allUses.addAll(inner.getValue().getAllUsesNodes());
1087 for (UsesNodeBuilder usesNode : allUses) {
1088 ModuleBuilder module = BuilderUtils.getParentModule(usesNode);
1089 final GroupingBuilder targetGroupingBuilder = GroupingUtils.getTargetGroupingFromModules(usesNode, modules,
1091 usesNode.setGrouping(targetGroupingBuilder);
1096 * Resolve uses statements defined in groupings.
1099 * all loaded modules
1101 private static void resolveUsesForGroupings(final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
1102 final Set<GroupingBuilder> allGroupings = new HashSet<>();
1103 for (Map.Entry<URI, NavigableMap<Date, ModuleBuilder>> entry : modules.entrySet()) {
1104 for (Map.Entry<Date, ModuleBuilder> inner : entry.getValue().entrySet()) {
1105 ModuleBuilder module = inner.getValue();
1106 allGroupings.addAll(module.getAllGroupings());
1109 final List<GroupingBuilder> sorted = GroupingSort.sort(allGroupings);
1110 for (GroupingBuilder gb : sorted) {
1111 List<UsesNodeBuilder> usesNodes = new ArrayList<>(GroupingSort.getAllUsesNodes(gb));
1112 Collections.sort(usesNodes, new GroupingUtils.UsesComparator());
1113 for (UsesNodeBuilder usesNode : usesNodes) {
1114 resolveUses(usesNode, modules);
1120 * Resolve uses statements.
1123 * all loaded modules
1125 private static void resolveUsesForNodes(final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
1126 for (Map.Entry<URI, NavigableMap<Date, ModuleBuilder>> entry : modules.entrySet()) {
1127 for (Map.Entry<Date, ModuleBuilder> inner : entry.getValue().entrySet()) {
1128 ModuleBuilder module = inner.getValue();
1129 List<UsesNodeBuilder> usesNodes = module.getAllUsesNodes();
1130 Collections.sort(usesNodes, new GroupingUtils.UsesComparator());
1131 for (UsesNodeBuilder usesNode : usesNodes) {
1132 resolveUses(usesNode, modules);
1139 * Find target grouping and copy its child nodes to current location with
1143 * uses node to resolve
1145 * all loaded modules
1147 private static void resolveUses(final UsesNodeBuilder usesNode, final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
1148 if (!usesNode.isResolved()) {
1149 DataNodeContainerBuilder parent = usesNode.getParent();
1150 ModuleBuilder module = BuilderUtils.getParentModule(parent);
1151 GroupingBuilder target = GroupingUtils.getTargetGroupingFromModules(usesNode, modules, module);
1153 int index = nodeAfterUsesIndex(usesNode);
1154 List<DataSchemaNodeBuilder> targetNodes = target.instantiateChildNodes(parent);
1155 for (DataSchemaNodeBuilder targetNode : targetNodes) {
1156 parent.addChildNode(index++, targetNode);
1158 parent.getTypeDefinitionBuilders().addAll(target.instantiateTypedefs(parent));
1159 parent.getGroupingBuilders().addAll(target.instantiateGroupings(parent));
1160 parent.getUnknownNodes().addAll(target.instantiateUnknownNodes(parent));
1161 usesNode.setResolved(true);
1162 for (AugmentationSchemaBuilder augment : usesNode.getAugmentations()) {
1163 resolveUsesAugment(augment, module, modules);
1166 GroupingUtils.performRefine(usesNode);
1170 private static int nodeAfterUsesIndex(final UsesNodeBuilder usesNode) {
1171 DataNodeContainerBuilder parent = usesNode.getParent();
1172 int usesLine = usesNode.getLine();
1174 List<DataSchemaNodeBuilder> childNodes = parent.getChildNodeBuilders();
1175 if (childNodes.isEmpty()) {
1179 DataSchemaNodeBuilder nextNodeAfterUses = null;
1180 for (DataSchemaNodeBuilder childNode : childNodes) {
1181 if (!childNode.isAddedByUses() && !childNode.isAugmenting() && childNode.getLine() > usesLine) {
1182 nextNodeAfterUses = childNode;
1187 // uses is declared after child nodes
1188 if (nextNodeAfterUses == null) {
1189 return childNodes.size();
1192 return parent.getChildNodeBuilders().indexOf(nextNodeAfterUses);
1196 * Try to find extension describing this unknown node and assign it to
1197 * unknown node builder.
1200 * all loaded modules
1204 private static void resolveUnknownNodes(final Map<URI, NavigableMap<Date, ModuleBuilder>> modules, final ModuleBuilder module) {
1205 for (UnknownSchemaNodeBuilder usnb : module.getAllUnknownNodes()) {
1206 QName nodeType = usnb.getNodeType();
1207 String localName = usnb.getNodeType().getLocalName();
1208 ModuleBuilder dependentModule = BuilderUtils.findModule(nodeType, modules);
1210 if (dependentModule == null) {
1212 "Error in module {} at line {}: Failed to resolve node {}: no such extension definition found.",
1213 module.getName(), usnb.getLine(), usnb);
1217 ExtensionBuilder extBuilder = findExtBuilder(localName, dependentModule.getAddedExtensions());
1218 if (extBuilder == null) {
1219 ExtensionDefinition extDef = findExtDef(localName, dependentModule.getExtensions());
1220 if (extDef == null) {
1222 "Error in module {} at line {}: Failed to resolve node {}: no such extension definition found.",
1223 module.getName(), usnb.getLine(), usnb);
1225 usnb.setExtensionDefinition(extDef);
1228 usnb.setExtensionBuilder(extBuilder);
1233 private static ExtensionBuilder findExtBuilder(final String name, final Collection<ExtensionBuilder> extensions) {
1234 for (ExtensionBuilder extension : extensions) {
1235 if (extension.getQName().getLocalName().equals(name)) {
1242 private static ExtensionDefinition findExtDef(final String name, final Collection<ExtensionDefinition> extensions) {
1243 for (ExtensionDefinition extension : extensions) {
1244 if (extension.getQName().getLocalName().equals(name)) {
1253 * Traverse through modules and check if choice has choice cases with the
1257 * all loaded modules
1259 private void checkChoiceCasesForDuplicityQNames(final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
1260 for (Map.Entry<URI, NavigableMap<Date, ModuleBuilder>> entry : modules.entrySet()) {
1261 for (Map.Entry<Date, ModuleBuilder> childEntry : entry.getValue().entrySet()) {
1262 final ModuleBuilder moduleBuilder = childEntry.getValue();
1263 final Module module = moduleBuilder.build();
1264 final List<ChoiceSchemaNode> allChoicesFromModule = getChoicesFrom(module);
1266 for (ChoiceSchemaNode choiceNode : allChoicesFromModule) {
1267 findDuplicityNodesIn(choiceNode, module, moduleBuilder, modules);
1273 private static void findDuplicityNodesIn(final ChoiceSchemaNode choiceNode, final Module module, final ModuleBuilder moduleBuilder,
1274 final Map<URI, NavigableMap<Date, ModuleBuilder>> modules) {
1275 final Set<QName> duplicityTestSet = new HashSet<>();
1277 for (ChoiceCaseNode choiceCaseNode : choiceNode.getCases()) {
1279 for (DataSchemaNode childSchemaNode : choiceCaseNode.getChildNodes()) {
1280 if (!duplicityTestSet.add(childSchemaNode.getQName())) {
1281 final Optional<SchemaNodeBuilder> schemaNodeBuilder = BuilderUtils.findSchemaNodeInModule(childSchemaNode.getPath(), moduleBuilder);
1282 final String nameOfSchemaNode = childSchemaNode.getQName().getLocalName();
1283 int lineOfSchemaNode = 0;
1285 if (schemaNodeBuilder.isPresent()) {
1286 lineOfSchemaNode = schemaNodeBuilder.get().getLine();
1288 throw new YangParseException(module.getName(), lineOfSchemaNode,
1289 String.format("Choice has two nodes case with same qnames - %s", nameOfSchemaNode));
1295 private List<ChoiceSchemaNode> getChoicesFrom(final Module module) {
1296 final List<ChoiceSchemaNode> allChoices = new ArrayList<>();
1298 for (DataSchemaNode dataSchemaNode : module.getChildNodes()) {
1299 findChoicesIn(dataSchemaNode, allChoices);
1304 private void findChoicesIn(final SchemaNode schemaNode, final Collection<ChoiceSchemaNode> choiceNodes) {
1305 if (schemaNode instanceof ContainerSchemaNode) {
1306 final ContainerSchemaNode contSchemaNode = (ContainerSchemaNode) schemaNode;
1307 for (DataSchemaNode dataSchemaNode : contSchemaNode.getChildNodes()) {
1308 findChoicesIn(dataSchemaNode, choiceNodes);
1310 } else if (schemaNode instanceof ListSchemaNode) {
1311 final ListSchemaNode listSchemaNode = (ListSchemaNode) schemaNode;
1312 for (DataSchemaNode dataSchemaNode : listSchemaNode.getChildNodes()) {
1313 findChoicesIn(dataSchemaNode, choiceNodes);
1315 } else if (schemaNode instanceof ChoiceSchemaNode) {
1316 choiceNodes.add((ChoiceSchemaNode) schemaNode);