opendaylight/sal/yang-prototype/code-generator/yang-model-parser-impl/src/main/java/org/opendaylight/controller/yang/parser/util/ParserUtils.java

   1 /*
   2  * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.controller.yang.parser.util;
   9
  10 import java.util.ArrayList;
  11 import java.util.Date;
  12 import java.util.List;
  13 import java.util.Map;
  14 import java.util.Set;
  15 import java.util.TreeMap;
  16
  17 import org.opendaylight.controller.yang.common.QName;
  18 import org.opendaylight.controller.yang.model.api.AnyXmlSchemaNode;
  19 import org.opendaylight.controller.yang.model.api.ChoiceNode;
  20 import org.opendaylight.controller.yang.model.api.ConstraintDefinition;
  21 import org.opendaylight.controller.yang.model.api.ContainerSchemaNode;
  22 import org.opendaylight.controller.yang.model.api.DataNodeContainer;
  23 import org.opendaylight.controller.yang.model.api.DataSchemaNode;
  24 import org.opendaylight.controller.yang.model.api.GroupingDefinition;
  25 import org.opendaylight.controller.yang.model.api.LeafListSchemaNode;
  26 import org.opendaylight.controller.yang.model.api.LeafSchemaNode;
  27 import org.opendaylight.controller.yang.model.api.ListSchemaNode;
  28 import org.opendaylight.controller.yang.model.api.Module;
  29 import org.opendaylight.controller.yang.model.api.ModuleImport;
  30 import org.opendaylight.controller.yang.model.api.MustDefinition;
  31 import org.opendaylight.controller.yang.model.api.NotificationDefinition;
  32 import org.opendaylight.controller.yang.model.api.RevisionAwareXPath;
  33 import org.opendaylight.controller.yang.model.api.SchemaContext;
  34 import org.opendaylight.controller.yang.model.api.SchemaNode;
  35 import org.opendaylight.controller.yang.model.api.SchemaPath;
  36 import org.opendaylight.controller.yang.model.api.TypeDefinition;
  37 import org.opendaylight.controller.yang.model.api.UnknownSchemaNode;
  38 import org.opendaylight.controller.yang.model.api.type.BinaryTypeDefinition;
  39 import org.opendaylight.controller.yang.model.api.type.BitsTypeDefinition;
  40 import org.opendaylight.controller.yang.model.api.type.BooleanTypeDefinition;
  41 import org.opendaylight.controller.yang.model.api.type.DecimalTypeDefinition;
  42 import org.opendaylight.controller.yang.model.api.type.EmptyTypeDefinition;
  43 import org.opendaylight.controller.yang.model.api.type.EnumTypeDefinition;
  44 import org.opendaylight.controller.yang.model.api.type.EnumTypeDefinition.EnumPair;
  45 import org.opendaylight.controller.yang.model.api.type.IdentityrefTypeDefinition;
  46 import org.opendaylight.controller.yang.model.api.type.InstanceIdentifierTypeDefinition;
  47 import org.opendaylight.controller.yang.model.api.type.IntegerTypeDefinition;
  48 import org.opendaylight.controller.yang.model.api.type.LeafrefTypeDefinition;
  49 import org.opendaylight.controller.yang.model.api.type.LengthConstraint;
  50 import org.opendaylight.controller.yang.model.api.type.PatternConstraint;
  51 import org.opendaylight.controller.yang.model.api.type.RangeConstraint;
  52 import org.opendaylight.controller.yang.model.api.type.StringTypeDefinition;
  53 import org.opendaylight.controller.yang.model.api.type.UnionTypeDefinition;
  54 import org.opendaylight.controller.yang.model.api.type.UnsignedIntegerTypeDefinition;
  55 import org.opendaylight.controller.yang.model.util.BinaryType;
  56 import org.opendaylight.controller.yang.model.util.BitsType;
  57 import org.opendaylight.controller.yang.model.util.BooleanType;
  58 import org.opendaylight.controller.yang.model.util.Decimal64;
  59 import org.opendaylight.controller.yang.model.util.EmptyType;
  60 import org.opendaylight.controller.yang.model.util.EnumerationType;
  61 import org.opendaylight.controller.yang.model.util.ExtendedType;
  62 import org.opendaylight.controller.yang.model.util.IdentityrefType;
  63 import org.opendaylight.controller.yang.model.util.InstanceIdentifier;
  64 import org.opendaylight.controller.yang.model.util.Int16;
  65 import org.opendaylight.controller.yang.model.util.Int32;
  66 import org.opendaylight.controller.yang.model.util.Int64;
  67 import org.opendaylight.controller.yang.model.util.Int8;
  68 import org.opendaylight.controller.yang.model.util.Leafref;
  69 import org.opendaylight.controller.yang.model.util.StringType;
  70 import org.opendaylight.controller.yang.model.util.Uint16;
  71 import org.opendaylight.controller.yang.model.util.Uint32;
  72 import org.opendaylight.controller.yang.model.util.Uint64;
  73 import org.opendaylight.controller.yang.model.util.Uint8;
  74 import org.opendaylight.controller.yang.model.util.UnionType;
  75 import org.opendaylight.controller.yang.model.util.UnknownType;
  76 import org.opendaylight.controller.yang.parser.builder.api.AugmentationSchemaBuilder;
  77 import org.opendaylight.controller.yang.parser.builder.api.AugmentationTargetBuilder;
  78 import org.opendaylight.controller.yang.parser.builder.api.Builder;
  79 import org.opendaylight.controller.yang.parser.builder.api.DataNodeContainerBuilder;
  80 import org.opendaylight.controller.yang.parser.builder.api.DataSchemaNodeBuilder;
  81 import org.opendaylight.controller.yang.parser.builder.api.GroupingBuilder;
  82 import org.opendaylight.controller.yang.parser.builder.api.GroupingMember;
  83 import org.opendaylight.controller.yang.parser.builder.api.SchemaNodeBuilder;
  84 import org.opendaylight.controller.yang.parser.builder.api.TypeAwareBuilder;
  85 import org.opendaylight.controller.yang.parser.builder.api.TypeDefinitionBuilder;
  86 import org.opendaylight.controller.yang.parser.builder.api.UsesNodeBuilder;
  87 import org.opendaylight.controller.yang.parser.builder.impl.AnyXmlBuilder;
  88 import org.opendaylight.controller.yang.parser.builder.impl.ChoiceBuilder;
  89 import org.opendaylight.controller.yang.parser.builder.impl.ChoiceBuilder.ChoiceNodeImpl;
  90 import org.opendaylight.controller.yang.parser.builder.impl.ChoiceCaseBuilder;
  91 import org.opendaylight.controller.yang.parser.builder.impl.ChoiceCaseBuilder.ChoiceCaseNodeImpl;
  92 import org.opendaylight.controller.yang.parser.builder.impl.ConstraintsBuilder;
  93 import org.opendaylight.controller.yang.parser.builder.impl.ContainerSchemaNodeBuilder;
  94 import org.opendaylight.controller.yang.parser.builder.impl.ContainerSchemaNodeBuilder.ContainerSchemaNodeImpl;
  95 import org.opendaylight.controller.yang.parser.builder.impl.GroupingBuilderImpl;
  96 import org.opendaylight.controller.yang.parser.builder.impl.LeafListSchemaNodeBuilder;
  97 import org.opendaylight.controller.yang.parser.builder.impl.LeafSchemaNodeBuilder;
  98 import org.opendaylight.controller.yang.parser.builder.impl.ListSchemaNodeBuilder;
  99 import org.opendaylight.controller.yang.parser.builder.impl.ListSchemaNodeBuilder.ListSchemaNodeImpl;
 100 import org.opendaylight.controller.yang.parser.builder.impl.ModuleBuilder;
 101 import org.opendaylight.controller.yang.parser.builder.impl.NotificationBuilder;
 102 import org.opendaylight.controller.yang.parser.builder.impl.NotificationBuilder.NotificationDefinitionImpl;
 103 import org.opendaylight.controller.yang.parser.builder.impl.RpcDefinitionBuilder;
 104 import org.opendaylight.controller.yang.parser.builder.impl.TypeDefinitionBuilderImpl;
 105 import org.opendaylight.controller.yang.parser.builder.impl.UnionTypeBuilder;
 106 import org.opendaylight.controller.yang.parser.builder.impl.UnknownSchemaNodeBuilder;
 107
 108 public final class ParserUtils {
 109
 110     private ParserUtils() {
 111     }
 112
 113     /**
 114      * Create new SchemaPath from given path and name.
 115      *
 116      * Append new qname to schema path created from name argument. New QName
 117      * gets namespace, revision and prefix same as last qname in current schema
 118      * path.
 119      *
 120      * @param schemaPath
 121      * @param name
 122      * @return
 123      */
 124     public static SchemaPath createSchemaPath(SchemaPath schemaPath, String name) {
 125         List<QName> path = new ArrayList<QName>(schemaPath.getPath());
 126         QName last = path.get(path.size() - 1);
 127         QName newQName = new QName(last.getNamespace(), last.getRevision(), last.getPrefix(), name);
 128         path.add(newQName);
 129         return new SchemaPath(path, schemaPath.isAbsolute());
 130     }
 131
 132     /**
 133      * Get module import referenced by given prefix.
 134      *
 135      * @param builder
 136      *            module to search
 137      * @param prefix
 138      *            prefix associated with import
 139      * @return ModuleImport based on given prefix
 140      */
 141     public static ModuleImport getModuleImport(final ModuleBuilder builder, final String prefix) {
 142         ModuleImport moduleImport = null;
 143         for (ModuleImport mi : builder.getModuleImports()) {
 144             if (mi.getPrefix().equals(prefix)) {
 145                 moduleImport = mi;
 146                 break;
 147             }
 148         }
 149         return moduleImport;
 150     }
 151
 152     /**
 153      * Find dependent module based on given prefix
 154      *
 155      * @param modules
 156      *            all available modules
 157      * @param module
 158      *            current module
 159      * @param prefix
 160      *            target module prefix
 161      * @param line
 162      *            current line in yang model
 163      * @return
 164      */
 165     public static ModuleBuilder findDependentModuleBuilder(final Map<String, TreeMap<Date, ModuleBuilder>> modules,
 166             final ModuleBuilder module, final String prefix, final int line) {
 167         ModuleBuilder dependentModule = null;
 168         Date dependentModuleRevision = null;
 169
 170         if (prefix.equals(module.getPrefix())) {
 171             dependentModule = module;
 172         } else {
 173             final ModuleImport dependentModuleImport = getModuleImport(module, prefix);
 174             if (dependentModuleImport == null) {
 175                 throw new YangParseException(module.getName(), line, "No import found with prefix '" + prefix + "'.");
 176             }
 177             final String dependentModuleName = dependentModuleImport.getModuleName();
 178             dependentModuleRevision = dependentModuleImport.getRevision();
 179
 180             final TreeMap<Date, ModuleBuilder> moduleBuildersByRevision = modules.get(dependentModuleName);
 181             if (moduleBuildersByRevision == null) {
 182                 return null;
 183             }
 184             if (dependentModuleRevision == null) {
 185                 dependentModule = moduleBuildersByRevision.lastEntry().getValue();
 186             } else {
 187                 dependentModule = moduleBuildersByRevision.get(dependentModuleRevision);
 188             }
 189         }
 190         return dependentModule;
 191     }
 192
 193     /**
 194      * Find module from context based on prefix.
 195      *
 196      * @param context
 197      *            schema context
 198      * @param currentModule
 199      *            current module
 200      * @param prefix
 201      *            current prefix used to reference dependent module
 202      * @param line
 203      *            current line in yang model
 204      * @return module based on given prefix if found in context, null otherwise
 205      */
 206     public static Module findModuleFromContext(final SchemaContext context, final ModuleBuilder currentModule,
 207             final String prefix, final int line) {
 208         TreeMap<Date, Module> modulesByRevision = new TreeMap<Date, Module>();
 209
 210         Date dependentModuleRevision = null;
 211
 212         final ModuleImport dependentModuleImport = ParserUtils.getModuleImport(currentModule, prefix);
 213         if (dependentModuleImport == null) {
 214             throw new YangParseException(currentModule.getName(), line, "No import found with prefix '" + prefix + "'.");
 215         }
 216         final String dependentModuleName = dependentModuleImport.getModuleName();
 217         dependentModuleRevision = dependentModuleImport.getRevision();
 218
 219         for (Module contextModule : context.getModules()) {
 220             if (contextModule.getName().equals(dependentModuleName)) {
 221                 Date revision = contextModule.getRevision();
 222                 if (revision == null) {
 223                     revision = new Date(0L);
 224                 }
 225                 modulesByRevision.put(revision, contextModule);
 226                 break;
 227             }
 228         }
 229
 230         Module result = null;
 231         if (dependentModuleRevision == null) {
 232             result = modulesByRevision.get(modulesByRevision.firstKey());
 233         } else {
 234             result = modulesByRevision.get(dependentModuleRevision);
 235         }
 236
 237         return result;
 238     }
 239
 240     /**
 241      * Find grouping by name.
 242      *
 243      * @param groupings
 244      *            collection of grouping builders to search
 245      * @param name
 246      *            name of grouping
 247      * @return grouping with given name if present in collection, null otherwise
 248      */
 249     public static GroupingBuilder findGroupingBuilder(Set<GroupingBuilder> groupings, String name) {
 250         for (GroupingBuilder grouping : groupings) {
 251             if (grouping.getQName().getLocalName().equals(name)) {
 252                 return grouping;
 253             }
 254         }
 255         return null;
 256     }
 257
 258     /**
 259      * Find grouping by name.
 260      *
 261      * @param groupings
 262      *            collection of grouping definitions to search
 263      * @param name
 264      *            name of grouping
 265      * @return grouping with given name if present in collection, null otherwise
 266      */
 267     public static GroupingDefinition findGroupingDefinition(Set<GroupingDefinition> groupings, String name) {
 268         for (GroupingDefinition grouping : groupings) {
 269             if (grouping.getQName().getLocalName().equals(name)) {
 270                 return grouping;
 271             }
 272         }
 273         return null;
 274     }
 275
 276     /**
 277      * Search types for type with given name.
 278      *
 279      * @param types
 280      *            types to search
 281      * @param name
 282      *            name of type
 283      * @return type with given name if present in collection, null otherwise
 284      */
 285     public static TypeDefinitionBuilder findTypedefBuilderByName(Set<TypeDefinitionBuilder> types, String name) {
 286         for (TypeDefinitionBuilder td : types) {
 287             if (td.getQName().getLocalName().equals(name)) {
 288                 return td;
 289             }
 290         }
 291         return null;
 292     }
 293
 294     /**
 295      * Find type by name.
 296      *
 297      * @param types
 298      *            collection of types
 299      * @param typeName
 300      *            type name
 301      * @return type with given name if it is present in collection, null
 302      *         otherwise
 303      */
 304     public static TypeDefinition<?> findTypeByName(Set<TypeDefinition<?>> types, String typeName) {
 305         for (TypeDefinition<?> type : types) {
 306             if (type.getQName().getLocalName().equals(typeName)) {
 307                 return type;
 308             }
 309         }
 310         return null;
 311     }
 312
 313     /**
 314      * Parse uses path.
 315      *
 316      * @param usesPath
 317      *            as String
 318      * @return SchemaPath from given String
 319      */
 320     public static SchemaPath parseUsesPath(final String usesPath) {
 321         final boolean absolute = usesPath.startsWith("/");
 322         final String[] splittedPath = usesPath.split("/");
 323         final List<QName> path = new ArrayList<QName>();
 324         QName name;
 325         for (String pathElement : splittedPath) {
 326             if (pathElement.length() > 0) {
 327                 final String[] splittedElement = pathElement.split(":");
 328                 if (splittedElement.length == 1) {
 329                     name = new QName(null, null, null, splittedElement[0]);
 330                 } else {
 331                     name = new QName(null, null, splittedElement[0], splittedElement[1]);
 332                 }
 333                 path.add(name);
 334             }
 335         }
 336         return new SchemaPath(path, absolute);
 337     }
 338
 339     /**
 340      * Check if node is present in refine nodes.
 341      *
 342      * @param nodeQName
 343      *            qname of node
 344      * @param refineNodes
 345      *            collections of refined nodes
 346      * @return true, if node with given qname was found, false otherwise
 347      */
 348     public static SchemaNodeBuilder getRefined(QName nodeQName, List<SchemaNodeBuilder> refineNodes) {
 349         for (SchemaNodeBuilder rn : refineNodes) {
 350             if (rn.getQName().equals(nodeQName)) {
 351                 return rn;
 352             }
 353         }
 354         return null;
 355     }
 356
 357     /**
 358      * Pull restriction from type and add them to constraints.
 359      *
 360      * @param type
 361      * @param constraints
 362      */
 363     public static void mergeConstraints(final TypeDefinition<?> type, final TypeConstraints constraints) {
 364         if (type instanceof DecimalTypeDefinition) {
 365             constraints.addRanges(((DecimalTypeDefinition) type).getRangeStatements());
 366             constraints.addFractionDigits(((DecimalTypeDefinition) type).getFractionDigits());
 367         } else if (type instanceof IntegerTypeDefinition) {
 368             constraints.addRanges(((IntegerTypeDefinition) type).getRangeStatements());
 369         } else if (type instanceof StringTypeDefinition) {
 370             constraints.addPatterns(((StringTypeDefinition) type).getPatterns());
 371             constraints.addLengths(((StringTypeDefinition) type).getLengthStatements());
 372         } else if (type instanceof BinaryTypeDefinition) {
 373             constraints.addLengths(((BinaryTypeDefinition) type).getLengthConstraints());
 374         }
 375     }
 376
 377     /**
 378      * Find node in grouping by name.
 379      *
 380      * @param grouping
 381      *            grouping to search
 382      * @param refineNodeName
 383      *            name of node
 384      * @return builder of node with given name if present in grouping, null
 385      *         otherwise
 386      */
 387     public static Builder findRefineTargetBuilder(final GroupingBuilder grouping, final String refineNodeName) {
 388         // search child nodes
 389         Builder result = grouping.getChildNode(refineNodeName);
 390         // search groupings
 391         if (result == null) {
 392             Set<GroupingBuilder> grps = grouping.getGroupingBuilders();
 393             for (GroupingBuilder gr : grps) {
 394                 if (gr.getQName().getLocalName().equals(refineNodeName)) {
 395                     result = gr;
 396                     break;
 397                 }
 398             }
 399         }
 400         // search typedefs
 401         if (result == null) {
 402             Set<TypeDefinitionBuilder> typedefs = grouping.getTypeDefinitionBuilders();
 403             for (TypeDefinitionBuilder typedef : typedefs) {
 404                 if (typedef.getQName().getLocalName().equals(refineNodeName)) {
 405                     result = typedef;
 406                     break;
 407                 }
 408             }
 409         }
 410         return result;
 411     }
 412
 413     /**
 414      * Find node in grouping by name.
 415      *
 416      * @param builder
 417      *            grouping to search
 418      * @param refineNodeName
 419      *            name of node
 420      * @return node with given name if present in grouping, null otherwise
 421      */
 422     public static Object findRefineTargetNode(final GroupingDefinition builder, final String refineNodeName) {
 423         Object result = builder.getDataChildByName(refineNodeName);
 424         if (result == null) {
 425             Set<GroupingDefinition> grps = builder.getGroupings();
 426             for (GroupingDefinition gr : grps) {
 427                 if (gr.getQName().getLocalName().equals(refineNodeName)) {
 428                     result = gr;
 429                     break;
 430                 }
 431             }
 432         }
 433         if (result == null) {
 434             Set<TypeDefinition<?>> typedefs = builder.getTypeDefinitions();
 435             for (TypeDefinition<?> typedef : typedefs) {
 436                 if (typedef.getQName().getLocalName().equals(refineNodeName)) {
 437                     result = typedef;
 438                     break;
 439                 }
 440             }
 441         }
 442         return result;
 443     }
 444
 445     /**
 446      * Add all augment's child nodes to given target.
 447      *
 448      * @param augment
 449      *            builder of augment statement
 450      * @param target
 451      *            augmentation target node
 452      */
 453     public static void fillAugmentTarget(final AugmentationSchemaBuilder augment, final DataNodeContainerBuilder target) {
 454         boolean usesAugment = augment.getParent() instanceof UsesNodeBuilder;
 455         for (DataSchemaNodeBuilder builder : augment.getChildNodeBuilders()) {
 456             builder.setAugmenting(true);
 457             if (usesAugment) {
 458                 if (builder instanceof GroupingMember) {
 459                     ((GroupingMember) builder).setAddedByUses(true);
 460                 }
 461             }
 462             correctAugmentChildPath(builder, target.getPath());
 463             target.addChildNode(builder);
 464         }
 465     }
 466
 467     /**
 468      * Add all augment's child nodes to given target.
 469      *
 470      * @param augment
 471      *            builder of augment statement
 472      * @param target
 473      *            augmentation target choice node
 474      */
 475     public static void fillAugmentTarget(final AugmentationSchemaBuilder augment, final ChoiceBuilder target) {
 476         boolean usesAugment = augment.getParent() instanceof UsesNodeBuilder;
 477         for (DataSchemaNodeBuilder builder : augment.getChildNodeBuilders()) {
 478             builder.setAugmenting(true);
 479             if (usesAugment) {
 480                 if (builder instanceof GroupingMember) {
 481                     ((GroupingMember) builder).setAddedByUses(true);
 482                 }
 483             }
 484             correctAugmentChildPath(builder, target.getPath());
 485             target.addChildNode(builder);
 486         }
 487     }
 488
 489     private static void correctAugmentChildPath(final DataSchemaNodeBuilder childNode, final SchemaPath parentSchemaPath) {
 490         // set correct path
 491         List<QName> targetNodePath = new ArrayList<QName>(parentSchemaPath.getPath());
 492         targetNodePath.add(childNode.getQName());
 493         childNode.setPath(new SchemaPath(targetNodePath, true));
 494
 495         // set correct path for all child nodes
 496         if (childNode instanceof DataNodeContainerBuilder) {
 497             DataNodeContainerBuilder dataNodeContainer = (DataNodeContainerBuilder) childNode;
 498             for (DataSchemaNodeBuilder child : dataNodeContainer.getChildNodeBuilders()) {
 499                 correctAugmentChildPath(child, childNode.getPath());
 500             }
 501         }
 502
 503         // set correct path for all cases
 504         if(childNode instanceof ChoiceBuilder) {
 505             ChoiceBuilder choiceBuilder = (ChoiceBuilder) childNode;
 506             for (ChoiceCaseBuilder choiceCaseBuilder : choiceBuilder.getCases()) {
 507                 correctAugmentChildPath(choiceCaseBuilder, childNode.getPath());
 508             }
 509         }
 510
 511         // if node can contains type, correct path for this type too
 512         if (childNode instanceof TypeAwareBuilder) {
 513             TypeAwareBuilder nodeBuilder = (TypeAwareBuilder) childNode;
 514             correctTypeAwareNodePath(nodeBuilder, parentSchemaPath);
 515         }
 516     }
 517
 518     /**
 519      * Repair schema path of node type.
 520      *
 521      * @param node
 522      *            node which contains type statement
 523      * @param parentSchemaPath
 524      *            schema path of parent node
 525      */
 526     private static void correctTypeAwareNodePath(final TypeAwareBuilder node, final SchemaPath parentSchemaPath) {
 527         final QName nodeBuilderQName = node.getQName();
 528         final TypeDefinition<?> nodeType = node.getType();
 529
 530         Integer fd = null;
 531         List<LengthConstraint> lengths = null;
 532         List<PatternConstraint> patterns = null;
 533         List<RangeConstraint> ranges = null;
 534
 535         if (nodeType != null) {
 536             if (nodeType instanceof ExtendedType) {
 537                 ExtendedType et = (ExtendedType) nodeType;
 538                 if (nodeType.getQName().getLocalName().equals(nodeType.getBaseType().getQName().getLocalName())) {
 539                     fd = et.getFractionDigits();
 540                     lengths = et.getLengths();
 541                     patterns = et.getPatterns();
 542                     ranges = et.getRanges();
 543                     if (!hasConstraints(fd, lengths, patterns, ranges)) {
 544                         return;
 545                     }
 546                 }
 547             }
 548             TypeDefinition<?> newType = createCorrectTypeDefinition(parentSchemaPath, nodeBuilderQName, nodeType);
 549             node.setType(newType);
 550         } else {
 551             TypeDefinitionBuilder nodeBuilderTypedef = node.getTypedef();
 552
 553             fd = nodeBuilderTypedef.getFractionDigits();
 554             lengths = nodeBuilderTypedef.getLengths();
 555             patterns = nodeBuilderTypedef.getPatterns();
 556             ranges = nodeBuilderTypedef.getRanges();
 557
 558             String tdbTypeName = nodeBuilderTypedef.getQName().getLocalName();
 559             String baseTypeName = null;
 560             if (nodeBuilderTypedef.getType() == null) {
 561                 baseTypeName = nodeBuilderTypedef.getTypedef().getQName().getLocalName();
 562             } else {
 563                 baseTypeName = nodeBuilderTypedef.getType().getQName().getLocalName();
 564             }
 565             if (!(tdbTypeName.equals(baseTypeName))) {
 566                 return;
 567             }
 568
 569             if (!hasConstraints(fd, lengths, patterns, ranges)) {
 570                 return;
 571             }
 572
 573             SchemaPath newSchemaPath = createNewSchemaPath(nodeBuilderTypedef.getPath(), nodeBuilderQName,
 574                     nodeBuilderTypedef.getQName());
 575             nodeBuilderTypedef.setPath(newSchemaPath);
 576         }
 577     }
 578
 579     /**
 580      * Check if there are some constraints.
 581      *
 582      * @param fd
 583      *            fraction digits
 584      * @param lengths
 585      *            length constraints
 586      * @param patterns
 587      *            pattern constraints
 588      * @param ranges
 589      *            range constraints
 590      * @return true, if any of constraints are present, false otherwise
 591      */
 592     private static boolean hasConstraints(final Integer fd, final List<LengthConstraint> lengths,
 593             final List<PatternConstraint> patterns, final List<RangeConstraint> ranges) {
 594         if (fd == null && (lengths == null || lengths.isEmpty()) && (patterns == null || patterns.isEmpty())
 595                 && (ranges == null || ranges.isEmpty())) {
 596             return false;
 597         } else {
 598             return true;
 599         }
 600     }
 601
 602     private static TypeDefinition<?> createCorrectTypeDefinition(SchemaPath parentSchemaPath, QName nodeQName,
 603             TypeDefinition<?> nodeType) {
 604         QName nodeTypeQName = nodeType.getQName();
 605         SchemaPath newSchemaPath = createNewSchemaPath(parentSchemaPath, nodeQName, nodeTypeQName);
 606         TypeDefinition<?> result = null;
 607
 608         if (nodeType != null) {
 609             if (nodeType instanceof BinaryTypeDefinition) {
 610                 BinaryTypeDefinition binType = (BinaryTypeDefinition) nodeType;
 611
 612                 // List<Byte> bytes = (List<Byte>) binType.getDefaultValue();
 613                 // workaround to get rid of 'Unchecked cast' warning
 614                 List<Byte> bytes = new ArrayList<Byte>();
 615                 Object defaultValue = binType.getDefaultValue();
 616                 if (defaultValue instanceof List) {
 617                     for (Object o : List.class.cast(defaultValue)) {
 618                         if (o instanceof Byte) {
 619                             bytes.add((Byte) o);
 620                         }
 621                     }
 622                 }
 623                 result = new BinaryType(newSchemaPath, bytes);
 624             } else if (nodeType instanceof BitsTypeDefinition) {
 625                 BitsTypeDefinition bitsType = (BitsTypeDefinition) nodeType;
 626                 result = new BitsType(newSchemaPath, bitsType.getBits());
 627             } else if (nodeType instanceof BooleanTypeDefinition) {
 628                 result = new BooleanType(newSchemaPath);
 629             } else if (nodeType instanceof DecimalTypeDefinition) {
 630                 DecimalTypeDefinition decimalType = (DecimalTypeDefinition) nodeType;
 631                 result = new Decimal64(newSchemaPath, decimalType.getFractionDigits());
 632             } else if (nodeType instanceof EmptyTypeDefinition) {
 633                 result = new EmptyType(newSchemaPath);
 634             } else if (nodeType instanceof EnumTypeDefinition) {
 635                 EnumTypeDefinition enumType = (EnumTypeDefinition) nodeType;
 636                 result = new EnumerationType(newSchemaPath, (EnumPair) enumType.getDefaultValue(), enumType.getValues());
 637             } else if (nodeType instanceof IdentityrefTypeDefinition) {
 638                 IdentityrefTypeDefinition idrefType = (IdentityrefTypeDefinition) nodeType;
 639                 result = new IdentityrefType(idrefType.getIdentity(), newSchemaPath);
 640             } else if (nodeType instanceof InstanceIdentifierTypeDefinition) {
 641                 InstanceIdentifierTypeDefinition instIdType = (InstanceIdentifierTypeDefinition) nodeType;
 642                 return new InstanceIdentifier(newSchemaPath, instIdType.getPathStatement(),
 643                         instIdType.requireInstance());
 644             } else if (nodeType instanceof StringTypeDefinition) {
 645                 result = createNewStringType(parentSchemaPath, nodeQName, (StringTypeDefinition) nodeType);
 646             } else if (nodeType instanceof IntegerTypeDefinition) {
 647                 result = createNewIntType(parentSchemaPath, nodeQName, (IntegerTypeDefinition) nodeType);
 648             } else if (nodeType instanceof UnsignedIntegerTypeDefinition) {
 649                 result = createNewUintType(parentSchemaPath, nodeQName, (UnsignedIntegerTypeDefinition) nodeType);
 650             } else if (nodeType instanceof LeafrefTypeDefinition) {
 651                 result = new Leafref(newSchemaPath, ((LeafrefTypeDefinition) nodeType).getPathStatement());
 652             } else if (nodeType instanceof UnionTypeDefinition) {
 653                 UnionTypeDefinition unionType = (UnionTypeDefinition) nodeType;
 654                 return new UnionType(newSchemaPath, unionType.getTypes());
 655             } else if (nodeType instanceof ExtendedType) {
 656                 ExtendedType extType = (ExtendedType) nodeType;
 657                 result = createNewExtendedType(extType, newSchemaPath);
 658             }
 659         }
 660         return result;
 661     }
 662
 663     /**
 664      * Create new ExtendedType based on given type and with schema path.
 665      *
 666      * @param newPath
 667      *            schema path for new type
 668      * @param oldType
 669      *            type based
 670      * @return
 671      */
 672     private static ExtendedType createNewExtendedType(final ExtendedType oldType, final SchemaPath newPath) {
 673         QName qname = oldType.getQName();
 674         TypeDefinition<?> baseType = oldType.getBaseType();
 675         String desc = oldType.getDescription();
 676         String ref = oldType.getReference();
 677         ExtendedType.Builder builder = new ExtendedType.Builder(qname, baseType, desc, ref, newPath);
 678         builder.status(oldType.getStatus());
 679         builder.lengths(oldType.getLengths());
 680         builder.patterns(oldType.getPatterns());
 681         builder.ranges(oldType.getRanges());
 682         builder.fractionDigits(oldType.getFractionDigits());
 683         builder.unknownSchemaNodes(oldType.getUnknownSchemaNodes());
 684         return builder.build();
 685     }
 686
 687     private static StringTypeDefinition createNewStringType(final SchemaPath schemaPath, final QName nodeQName,
 688             final StringTypeDefinition nodeType) {
 689         final List<QName> path = schemaPath.getPath();
 690         final List<QName> newPath = new ArrayList<QName>(path);
 691         newPath.add(nodeQName);
 692         newPath.add(nodeType.getQName());
 693         final SchemaPath newSchemaPath = new SchemaPath(newPath, schemaPath.isAbsolute());
 694         return new StringType(newSchemaPath);
 695     }
 696
 697     private static IntegerTypeDefinition createNewIntType(final SchemaPath schemaPath, final QName nodeQName,
 698             final IntegerTypeDefinition type) {
 699         final QName typeQName = type.getQName();
 700         final SchemaPath newSchemaPath = createNewSchemaPath(schemaPath, nodeQName, typeQName);
 701         final String localName = typeQName.getLocalName();
 702
 703         if ("int8".equals(localName)) {
 704             return new Int8(newSchemaPath);
 705         } else if ("int16".equals(localName)) {
 706             return new Int16(newSchemaPath);
 707         } else if ("int32".equals(localName)) {
 708             return new Int32(newSchemaPath);
 709         } else if ("int64".equals(localName)) {
 710             return new Int64(newSchemaPath);
 711         } else {
 712             return null;
 713         }
 714     }
 715
 716     private static UnsignedIntegerTypeDefinition createNewUintType(final SchemaPath schemaPath, final QName nodeQName,
 717             final UnsignedIntegerTypeDefinition type) {
 718         final QName typeQName = type.getQName();
 719         final SchemaPath newSchemaPath = createNewSchemaPath(schemaPath, nodeQName, typeQName);
 720         final String localName = typeQName.getLocalName();
 721
 722         if ("uint8".equals(localName)) {
 723             return new Uint8(newSchemaPath);
 724         } else if ("uint16".equals(localName)) {
 725             return new Uint16(newSchemaPath);
 726         } else if ("uint32".equals(localName)) {
 727             return new Uint32(newSchemaPath);
 728         } else if ("uint64".equals(localName)) {
 729             return new Uint64(newSchemaPath);
 730         } else {
 731             return null;
 732         }
 733     }
 734
 735     private static SchemaPath createNewSchemaPath(final SchemaPath schemaPath, final QName currentQName,
 736             final QName qname) {
 737         List<QName> newPath = new ArrayList<QName>(schemaPath.getPath());
 738         newPath.add(currentQName);
 739         newPath.add(qname);
 740         return new SchemaPath(newPath, schemaPath.isAbsolute());
 741     }
 742
 743     /**
 744      * Create LeafSchemaNodeBuilder from given LeafSchemaNode.
 745      *
 746      * @param leaf
 747      *            leaf from which to create builder
 748      * @param line
 749      *            line in module
 750      * @return builder object from leaf
 751      */
 752     public static LeafSchemaNodeBuilder createLeafBuilder(LeafSchemaNode leaf, int line) {
 753         final LeafSchemaNodeBuilder builder = new LeafSchemaNodeBuilder(leaf.getQName(), leaf.getPath(), line);
 754         convertDataSchemaNode(leaf, builder);
 755         builder.setConfiguration(leaf.isConfiguration());
 756         final TypeDefinition<?> type = leaf.getType();
 757         builder.setType(type);
 758         builder.setPath(leaf.getPath());
 759         builder.setUnknownNodes(leaf.getUnknownSchemaNodes());
 760         builder.setDefaultStr(leaf.getDefault());
 761         builder.setUnits(leaf.getUnits());
 762         return builder;
 763     }
 764
 765     public static ContainerSchemaNodeBuilder createContainer(ContainerSchemaNode container, int line) {
 766         final ContainerSchemaNodeBuilder builder = new ContainerSchemaNodeBuilder(line, container.getQName(),
 767                 container.getPath());
 768         convertDataSchemaNode(container, builder);
 769         builder.setConfiguration(container.isConfiguration());
 770         builder.setUnknownNodes(container.getUnknownSchemaNodes());
 771         builder.setChildNodes(container.getChildNodes());
 772         builder.setGroupings(container.getGroupings());
 773         builder.setTypedefs(container.getTypeDefinitions());
 774         builder.setAugmentations(container.getAvailableAugmentations());
 775         builder.setUsesnodes(container.getUses());
 776         builder.setPresence(container.isPresenceContainer());
 777         return builder;
 778     }
 779
 780     public static ListSchemaNodeBuilder createList(ListSchemaNode list, int line) {
 781         ListSchemaNodeBuilder builder = new ListSchemaNodeBuilder(line, list.getQName(), list.getPath());
 782         convertDataSchemaNode(list, builder);
 783         builder.setConfiguration(list.isConfiguration());
 784         builder.setUnknownNodes(list.getUnknownSchemaNodes());
 785         builder.setTypedefs(list.getTypeDefinitions());
 786         builder.setChildNodes(list.getChildNodes());
 787         builder.setGroupings(list.getGroupings());
 788         builder.setAugmentations(list.getAvailableAugmentations());
 789         builder.setUsesnodes(list.getUses());
 790         builder.setUserOrdered(builder.isUserOrdered());
 791         return builder;
 792     }
 793
 794     public static LeafListSchemaNodeBuilder createLeafList(LeafListSchemaNode leafList, int line) {
 795         final LeafListSchemaNodeBuilder builder = new LeafListSchemaNodeBuilder(line, leafList.getQName(),
 796                 leafList.getPath());
 797         convertDataSchemaNode(leafList, builder);
 798         builder.setConfiguration(leafList.isConfiguration());
 799         builder.setType(leafList.getType());
 800         builder.setUnknownNodes(leafList.getUnknownSchemaNodes());
 801         builder.setUserOrdered(leafList.isUserOrdered());
 802         return builder;
 803     }
 804
 805     public static ChoiceBuilder createChoice(ChoiceNode choice, int line) {
 806         final ChoiceBuilder builder = new ChoiceBuilder(line, choice.getQName());
 807         convertDataSchemaNode(choice, builder);
 808         builder.setConfiguration(choice.isConfiguration());
 809         builder.setCases(choice.getCases());
 810         builder.setUnknownNodes(choice.getUnknownSchemaNodes());
 811         builder.setDefaultCase(choice.getDefaultCase());
 812         return builder;
 813     }
 814
 815     public static AnyXmlBuilder createAnyXml(AnyXmlSchemaNode anyxml, int line) {
 816         final AnyXmlBuilder builder = new AnyXmlBuilder(line, anyxml.getQName(), anyxml.getPath());
 817         convertDataSchemaNode(anyxml, builder);
 818         builder.setConfiguration(anyxml.isConfiguration());
 819         builder.setUnknownNodes(anyxml.getUnknownSchemaNodes());
 820         return builder;
 821     }
 822
 823     public static GroupingBuilder createGrouping(GroupingDefinition grouping, int line) {
 824         final GroupingBuilderImpl builder = new GroupingBuilderImpl(grouping.getQName(), line);
 825         builder.setPath(grouping.getPath());
 826         builder.setChildNodes(grouping.getChildNodes());
 827         builder.setGroupings(grouping.getGroupings());
 828         builder.setTypedefs(grouping.getTypeDefinitions());
 829         builder.setUsesnodes(grouping.getUses());
 830         builder.setUnknownNodes(grouping.getUnknownSchemaNodes());
 831         builder.setDescription(grouping.getDescription());
 832         builder.setReference(grouping.getReference());
 833         builder.setStatus(grouping.getStatus());
 834         return builder;
 835     }
 836
 837     public static TypeDefinitionBuilder createTypedef(ExtendedType typedef, int line) {
 838         final TypeDefinitionBuilderImpl builder = new TypeDefinitionBuilderImpl(typedef.getQName(), line);
 839         builder.setPath(typedef.getPath());
 840         builder.setDefaultValue(typedef.getDefaultValue());
 841         builder.setUnits(typedef.getUnits());
 842         builder.setDescription(typedef.getDescription());
 843         builder.setReference(typedef.getReference());
 844         builder.setStatus(typedef.getStatus());
 845         builder.setRanges(typedef.getRanges());
 846         builder.setLengths(typedef.getLengths());
 847         builder.setPatterns(typedef.getPatterns());
 848         builder.setFractionDigits(typedef.getFractionDigits());
 849         final TypeDefinition<?> type = typedef.getBaseType();
 850         builder.setType(type);
 851         builder.setUnits(typedef.getUnits());
 852         builder.setUnknownNodes(typedef.getUnknownSchemaNodes());
 853         return builder;
 854     }
 855
 856     public static UnknownSchemaNodeBuilder createUnknownSchemaNode(UnknownSchemaNode unknownNode, int line) {
 857         final UnknownSchemaNodeBuilder builder = new UnknownSchemaNodeBuilder(line, unknownNode.getQName());
 858         builder.setPath(unknownNode.getPath());
 859         builder.setUnknownNodes(unknownNode.getUnknownSchemaNodes());
 860         builder.setDescription(unknownNode.getDescription());
 861         builder.setReference(unknownNode.getReference());
 862         builder.setStatus(unknownNode.getStatus());
 863         builder.setAddedByUses(unknownNode.isAddedByUses());
 864         builder.setNodeType(unknownNode.getNodeType());
 865         builder.setNodeParameter(unknownNode.getNodeParameter());
 866         return builder;
 867     }
 868
 869     /**
 870      * Set DataSchemaNode arguments to builder object
 871      *
 872      * @param node
 873      *            node from which arguments should be read
 874      * @param builder
 875      *            builder to which arguments should be set
 876      */
 877     private static void convertDataSchemaNode(DataSchemaNode node, DataSchemaNodeBuilder builder) {
 878         builder.setPath(node.getPath());
 879         builder.setDescription(node.getDescription());
 880         builder.setReference(node.getReference());
 881         builder.setStatus(node.getStatus());
 882         builder.setAugmenting(node.isAugmenting());
 883         copyConstraintsFromDefinition(node.getConstraints(), builder.getConstraints());
 884     }
 885
 886     /**
 887      * Copy constraints from constraints definition to constraints builder.
 888      *
 889      * @param nodeConstraints
 890      *            definition from which constraints will be copied
 891      * @param constraints
 892      *            builder to which constraints will be added
 893      */
 894     private static void copyConstraintsFromDefinition(final ConstraintDefinition nodeConstraints,
 895             final ConstraintsBuilder constraints) {
 896         final RevisionAwareXPath when = nodeConstraints.getWhenCondition();
 897         final Set<MustDefinition> must = nodeConstraints.getMustConstraints();
 898
 899         if (when != null) {
 900             constraints.addWhenCondition(when.toString());
 901         }
 902         if (must != null) {
 903             for (MustDefinition md : must) {
 904                 constraints.addMustDefinition(md);
 905             }
 906         }
 907         constraints.setMandatory(nodeConstraints.isMandatory());
 908         constraints.setMinElements(nodeConstraints.getMinElements());
 909         constraints.setMaxElements(nodeConstraints.getMaxElements());
 910     }
 911
 912     public static void processAugmentationOnContext(final AugmentationSchemaBuilder augmentBuilder,
 913             final List<QName> path, final ModuleBuilder module, final String prefix, final int line,
 914             final SchemaContext context) {
 915         final Module dependentModule = findModuleFromContext(context, module, prefix, line);
 916         if (dependentModule == null) {
 917             throw new YangParseException(module.getName(), line, "Failed to find referenced module with prefix "
 918                     + prefix + ".");
 919         }
 920         SchemaNode node = dependentModule.getDataChildByName(path.get(0).getLocalName());
 921         if (node == null) {
 922             Set<NotificationDefinition> notifications = dependentModule.getNotifications();
 923             for (NotificationDefinition ntf : notifications) {
 924                 if (ntf.getQName().getLocalName().equals(path.get(0).getLocalName())) {
 925                     node = ntf;
 926                     break;
 927                 }
 928             }
 929         }
 930         if (node == null) {
 931             return;
 932         }
 933
 934         for (int i = 1; i < path.size(); i++) {
 935             if (node instanceof DataNodeContainer) {
 936                 DataNodeContainer ref = (DataNodeContainer) node;
 937                 node = ref.getDataChildByName(path.get(i).getLocalName());
 938             }
 939         }
 940         if (node == null) {
 941             return;
 942         }
 943
 944         if (node instanceof ContainerSchemaNodeImpl) {
 945             // includes container, input and output statement
 946             ContainerSchemaNodeImpl c = (ContainerSchemaNodeImpl) node;
 947             ContainerSchemaNodeBuilder cb = c.toBuilder();
 948             fillAugmentTarget(augmentBuilder, cb);
 949             ((AugmentationTargetBuilder) cb).addAugmentation(augmentBuilder);
 950             SchemaPath oldPath = cb.getPath();
 951             cb.rebuild();
 952             augmentBuilder.setTargetPath(new SchemaPath(oldPath.getPath(), oldPath.isAbsolute()));
 953             augmentBuilder.setResolved(true);
 954             module.augmentResolved();
 955         } else if (node instanceof ListSchemaNodeImpl) {
 956             ListSchemaNodeImpl l = (ListSchemaNodeImpl) node;
 957             ListSchemaNodeBuilder lb = l.toBuilder();
 958             fillAugmentTarget(augmentBuilder, lb);
 959             ((AugmentationTargetBuilder) lb).addAugmentation(augmentBuilder);
 960             SchemaPath oldPath = lb.getPath();
 961             lb.rebuild();
 962             augmentBuilder.setTargetPath(new SchemaPath(oldPath.getPath(), oldPath.isAbsolute()));
 963             augmentBuilder.setResolved(true);
 964             module.augmentResolved();
 965         } else if (node instanceof ChoiceNodeImpl) {
 966             ChoiceNodeImpl ch = (ChoiceNodeImpl) node;
 967             ChoiceBuilder chb = ch.toBuilder();
 968             fillAugmentTarget(augmentBuilder, chb);
 969             ((AugmentationTargetBuilder) chb).addAugmentation(augmentBuilder);
 970             SchemaPath oldPath = chb.getPath();
 971             chb.rebuild();
 972             augmentBuilder.setTargetPath(new SchemaPath(oldPath.getPath(), oldPath.isAbsolute()));
 973             augmentBuilder.setResolved(true);
 974             module.augmentResolved();
 975         } else if (node instanceof ChoiceCaseNodeImpl) {
 976             ChoiceCaseNodeImpl chc = (ChoiceCaseNodeImpl) node;
 977             ChoiceCaseBuilder chcb = chc.toBuilder();
 978             fillAugmentTarget(augmentBuilder, chcb);
 979             ((AugmentationTargetBuilder) chcb).addAugmentation(augmentBuilder);
 980             SchemaPath oldPath = chcb.getPath();
 981             chcb.rebuild();
 982             augmentBuilder.setTargetPath(new SchemaPath(oldPath.getPath(), oldPath.isAbsolute()));
 983             augmentBuilder.setResolved(true);
 984             module.augmentResolved();
 985         } else if (node instanceof NotificationDefinitionImpl) {
 986             NotificationDefinitionImpl nd = (NotificationDefinitionImpl) node;
 987             NotificationBuilder nb = nd.toBuilder();
 988             fillAugmentTarget(augmentBuilder, nb);
 989             ((AugmentationTargetBuilder) nb).addAugmentation(augmentBuilder);
 990             SchemaPath oldPath = nb.getPath();
 991             nb.rebuild();
 992             augmentBuilder.setTargetPath(new SchemaPath(oldPath.getPath(), oldPath.isAbsolute()));
 993             augmentBuilder.setResolved(true);
 994             module.augmentResolved();
 995         } else {
 996             throw new YangParseException(module.getName(), line, "Target of type " + node.getClass()
 997                     + " can not be augmented.");
 998         }
 999     }
1000
1001     public static void processAugmentation(final AugmentationSchemaBuilder augmentBuilder, final List<QName> path,
1002             final ModuleBuilder module, final ModuleBuilder dependentModuleBuilder) {
1003         DataSchemaNodeBuilder currentParent = null;
1004         for (DataSchemaNodeBuilder child : dependentModuleBuilder.getChildNodeBuilders()) {
1005             final QName childQName = child.getQName();
1006             if (childQName.getLocalName().equals(path.get(0).getLocalName())) {
1007                 currentParent = child;
1008                 break;
1009             }
1010         }
1011
1012         if (currentParent == null) {
1013             return;
1014         }
1015
1016         for (int i = 1; i < path.size(); i++) {
1017             final QName currentQName = path.get(i);
1018             DataSchemaNodeBuilder newParent = null;
1019             if (currentParent instanceof DataNodeContainerBuilder) {
1020                 for (DataSchemaNodeBuilder child : ((DataNodeContainerBuilder) currentParent).getChildNodeBuilders()) {
1021                     final QName childQName = child.getQName();
1022                     if (childQName.getLocalName().equals(currentQName.getLocalName())) {
1023                         newParent = child;
1024                         break;
1025                     }
1026                 }
1027             } else if (currentParent instanceof ChoiceBuilder) {
1028                 for (ChoiceCaseBuilder caseBuilder : ((ChoiceBuilder) currentParent).getCases()) {
1029                     final QName caseQName = caseBuilder.getQName();
1030                     if (caseQName.getLocalName().equals(currentQName.getLocalName())) {
1031                         newParent = caseBuilder;
1032                         break;
1033                     }
1034                 }
1035             }
1036
1037             if (newParent == null) {
1038                 break; // node not found, quit search
1039             } else {
1040                 currentParent = newParent;
1041             }
1042         }
1043
1044         final String currentName = currentParent.getQName().getLocalName();
1045         final String lastAugmentPathElementName = path.get(path.size() - 1).getLocalName();
1046         if (currentName.equals(lastAugmentPathElementName)) {
1047
1048             if (currentParent instanceof ChoiceBuilder) {
1049                 fillAugmentTarget(augmentBuilder, (ChoiceBuilder) currentParent);
1050             } else {
1051                 fillAugmentTarget(augmentBuilder, (DataNodeContainerBuilder) currentParent);
1052             }
1053             ((AugmentationTargetBuilder) currentParent).addAugmentation(augmentBuilder);
1054             SchemaPath oldPath = currentParent.getPath();
1055             augmentBuilder.setTargetPath(new SchemaPath(oldPath.getPath(), oldPath.isAbsolute()));
1056             augmentBuilder.setResolved(true);
1057             module.augmentResolved();
1058         }
1059     }
1060
1061     /**
1062      * Create new type builder based on old type with new base type.
1063      *
1064      * @param newBaseType
1065      *            new base type builder
1066      * @param oldExtendedType
1067      *            old type
1068      * @param modules
1069      *            all loaded modules
1070      * @param module
1071      *            current module
1072      * @param line
1073      *            current line in module
1074      * @return new type builder based on old type with new base type
1075      */
1076     public static TypeDefinitionBuilder extendedTypeWithNewBaseTypeBuilder(final TypeDefinitionBuilder newBaseType,
1077             final ExtendedType oldExtendedType, final Map<String, TreeMap<Date, ModuleBuilder>> modules,
1078             final ModuleBuilder module, final int line) {
1079         final TypeConstraints tc = new TypeConstraints(module.getName(), line);
1080         tc.addFractionDigits(oldExtendedType.getFractionDigits());
1081         tc.addLengths(oldExtendedType.getLengths());
1082         tc.addPatterns(oldExtendedType.getPatterns());
1083         tc.addRanges(oldExtendedType.getRanges());
1084
1085         final TypeConstraints constraints = findConstraintsFromTypeBuilder(newBaseType, tc, modules, module, null);
1086         final TypeDefinitionBuilderImpl newType = new TypeDefinitionBuilderImpl(oldExtendedType.getQName(), line);
1087         newType.setTypedef(newBaseType);
1088         newType.setPath(oldExtendedType.getPath());
1089         newType.setDescription(oldExtendedType.getDescription());
1090         newType.setReference(oldExtendedType.getReference());
1091         newType.setStatus(oldExtendedType.getStatus());
1092         newType.setLengths(constraints.getLength());
1093         newType.setPatterns(constraints.getPatterns());
1094         newType.setRanges(constraints.getRange());
1095         newType.setFractionDigits(constraints.getFractionDigits());
1096         newType.setUnits(oldExtendedType.getUnits());
1097         newType.setDefaultValue(oldExtendedType.getDefaultValue());
1098         newType.setUnknownNodes(oldExtendedType.getUnknownSchemaNodes());
1099         return newType;
1100     }
1101
1102     /**
1103      * Create new type builder based on old type with new base type.
1104      *
1105      * @param newBaseType
1106      *            new base type
1107      * @param oldExtendedType
1108      *            old type
1109      * @param modules
1110      *            all loaded modules
1111      * @param module
1112      *            current module
1113      * @param line
1114      *            current line in module
1115      * @return new type builder based on old type with new base type
1116      */
1117     public static TypeDefinitionBuilder extendedTypeWithNewBaseType(final TypeDefinition<?> newBaseType,
1118             final ExtendedType oldExtendedType, final ModuleBuilder module, final int line) {
1119         final TypeConstraints tc = new TypeConstraints(module.getName(), line);
1120
1121         final TypeConstraints constraints = findConstraintsFromTypeDefinition(newBaseType, tc);
1122         final TypeDefinitionBuilderImpl newType = new TypeDefinitionBuilderImpl(oldExtendedType.getQName(), line);
1123         newType.setType(newBaseType);
1124         newType.setPath(oldExtendedType.getPath());
1125         newType.setDescription(oldExtendedType.getDescription());
1126         newType.setReference(oldExtendedType.getReference());
1127         newType.setStatus(oldExtendedType.getStatus());
1128         newType.setLengths(constraints.getLength());
1129         newType.setPatterns(constraints.getPatterns());
1130         newType.setRanges(constraints.getRange());
1131         newType.setFractionDigits(constraints.getFractionDigits());
1132         newType.setUnits(oldExtendedType.getUnits());
1133         newType.setDefaultValue(oldExtendedType.getDefaultValue());
1134         newType.setUnknownNodes(oldExtendedType.getUnknownSchemaNodes());
1135         return newType;
1136     }
1137
1138     /**
1139      * Pull restrictions from type and add them to constraints.
1140      *
1141      * @param typeToResolve
1142      *            type from which constraints will be read
1143      * @param constraints
1144      *            constraints object to which constraints will be added
1145      * @return constraints contstraints object containing constraints from given
1146      *         type
1147      */
1148     private static TypeConstraints findConstraintsFromTypeDefinition(final TypeDefinition<?> typeToResolve,
1149             final TypeConstraints constraints) {
1150         // union type cannot be restricted
1151         if (typeToResolve instanceof UnionTypeDefinition) {
1152             return constraints;
1153         }
1154         if (typeToResolve instanceof ExtendedType) {
1155             ExtendedType extType = (ExtendedType) typeToResolve;
1156             constraints.addFractionDigits(extType.getFractionDigits());
1157             constraints.addLengths(extType.getLengths());
1158             constraints.addPatterns(extType.getPatterns());
1159             constraints.addRanges(extType.getRanges());
1160             return findConstraintsFromTypeDefinition(extType.getBaseType(), constraints);
1161         } else {
1162             mergeConstraints(typeToResolve, constraints);
1163             return constraints;
1164         }
1165     }
1166
1167     public static TypeConstraints findConstraintsFromTypeBuilder(final TypeAwareBuilder nodeToResolve,
1168             final TypeConstraints constraints, final Map<String, TreeMap<Date, ModuleBuilder>> modules,
1169             final ModuleBuilder builder, final SchemaContext context) {
1170
1171         // union type cannot be restricted
1172         if (nodeToResolve instanceof UnionTypeBuilder) {
1173             return constraints;
1174         }
1175
1176         if (nodeToResolve instanceof TypeDefinitionBuilder) {
1177             TypeDefinitionBuilder typedefToResolve = (TypeDefinitionBuilder) nodeToResolve;
1178             constraints.addFractionDigits(typedefToResolve.getFractionDigits());
1179             constraints.addLengths(typedefToResolve.getLengths());
1180             constraints.addPatterns(typedefToResolve.getPatterns());
1181             constraints.addRanges(typedefToResolve.getRanges());
1182         }
1183
1184         TypeDefinition<?> type = nodeToResolve.getType();
1185         if (type == null) {
1186             return findConstraintsFromTypeBuilder(nodeToResolve.getTypedef(), constraints, modules, builder, context);
1187         } else {
1188             QName qname = type.getQName();
1189             if (type instanceof UnknownType) {
1190                 ModuleBuilder dependentModuleBuilder = findDependentModuleBuilder(modules, builder, qname.getPrefix(),
1191                         nodeToResolve.getLine());
1192                 if (dependentModuleBuilder == null) {
1193                     if (context == null) {
1194                         throw new YangParseException(builder.getName(), nodeToResolve.getLine(),
1195                                 "Failed to resolved type constraints.");
1196                     }
1197                     Module dm = findModuleFromContext(context, builder, qname.getPrefix(), nodeToResolve.getLine());
1198                     TypeDefinition<?> t = findTypeByName(dm.getTypeDefinitions(), qname.getLocalName());
1199                     if (t instanceof ExtendedType) {
1200                         ExtendedType extType = (ExtendedType) t;
1201                         constraints.addFractionDigits(extType.getFractionDigits());
1202                         constraints.addLengths(extType.getLengths());
1203                         constraints.addPatterns(extType.getPatterns());
1204                         constraints.addRanges(extType.getRanges());
1205                         return constraints;
1206                     } else {
1207                         mergeConstraints(t, constraints);
1208                         return constraints;
1209                     }
1210                 } else {
1211                     TypeDefinitionBuilder tdb = findTypeDefinitionBuilder(nodeToResolve, dependentModuleBuilder,
1212                             qname.getLocalName(), builder.getName(), nodeToResolve.getLine());
1213                     return findConstraintsFromTypeBuilder(tdb, constraints, modules, dependentModuleBuilder, context);
1214                 }
1215             } else if (type instanceof ExtendedType) {
1216                 ExtendedType extType = (ExtendedType) type;
1217                 constraints.addFractionDigits(extType.getFractionDigits());
1218                 constraints.addLengths(extType.getLengths());
1219                 constraints.addPatterns(extType.getPatterns());
1220                 constraints.addRanges(extType.getRanges());
1221
1222                 TypeDefinition<?> base = extType.getBaseType();
1223                 if (base instanceof UnknownType) {
1224                     ModuleBuilder dependentModule = findDependentModuleBuilder(modules, builder, base.getQName()
1225                             .getPrefix(), nodeToResolve.getLine());
1226                     TypeDefinitionBuilder tdb = findTypeDefinitionBuilder(nodeToResolve, dependentModule, base
1227                             .getQName().getLocalName(), builder.getName(), nodeToResolve.getLine());
1228                     return findConstraintsFromTypeBuilder(tdb, constraints, modules, dependentModule, context);
1229                 } else {
1230                     // it has to be base yang type
1231                     mergeConstraints(type, constraints);
1232                     return constraints;
1233                 }
1234             } else {
1235                 // it is base yang type
1236                 mergeConstraints(type, constraints);
1237                 return constraints;
1238             }
1239         }
1240     }
1241
1242     /**
1243      * Search for type definition builder by name.
1244      *
1245      * @param dirtyNodeSchemaPath
1246      *            schema path of node which contains unresolved type
1247      * @param dependentModule
1248      *            module which should contains referenced type
1249      * @param typeName
1250      *            name of type definition
1251      * @param currentModuleName
1252      *            name of current module
1253      * @param line
1254      *            current line in yang model
1255      * @return
1256      */
1257     public static TypeDefinitionBuilder findTypeDefinitionBuilder(final TypeAwareBuilder nodeToResolve,
1258             final ModuleBuilder dependentModule, final String typeName, final String currentModuleName, final int line) {
1259
1260         TypeDefinitionBuilder result = null;
1261
1262         Set<TypeDefinitionBuilder> typedefs = dependentModule.getTypeDefinitionBuilders();
1263         result = findTypedefBuilderByName(typedefs, typeName);
1264         if (result != null) {
1265             return result;
1266         }
1267
1268         Builder parent = nodeToResolve.getParent();
1269         while (parent != null) {
1270             if (parent instanceof DataNodeContainerBuilder) {
1271                 typedefs = ((DataNodeContainerBuilder) parent).getTypeDefinitionBuilders();
1272             } else if (parent instanceof RpcDefinitionBuilder) {
1273                 typedefs = ((RpcDefinitionBuilder) parent).getTypeDefinitions();
1274             }
1275             result = findTypedefBuilderByName(typedefs, typeName);
1276             if (result == null) {
1277                 parent = parent.getParent();
1278             } else {
1279                 break;
1280             }
1281         }
1282
1283         if (result == null) {
1284             throw new YangParseException(currentModuleName, line, "Referenced type '" + typeName + "' not found.");
1285         }
1286         return result;
1287     }
1288
1289 }