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.getDataChildByName(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         TypeDefinition<?> result = null;
 605
 606         if (nodeType != null) {
 607             QName nodeTypeQName = nodeType.getQName();
 608             SchemaPath newSchemaPath = createNewSchemaPath(parentSchemaPath, nodeQName, nodeTypeQName);
 609
 610             if (nodeType instanceof BinaryTypeDefinition) {
 611                 BinaryTypeDefinition binType = (BinaryTypeDefinition) nodeType;
 612
 613                 // List<Byte> bytes = (List<Byte>) binType.getDefaultValue();
 614                 // workaround to get rid of 'Unchecked cast' warning
 615                 List<Byte> bytes = new ArrayList<Byte>();
 616                 Object defaultValue = binType.getDefaultValue();
 617                 if (defaultValue instanceof List) {
 618                     for (Object o : List.class.cast(defaultValue)) {
 619                         if (o instanceof Byte) {
 620                             bytes.add((Byte) o);
 621                         }
 622                     }
 623                 }
 624                 result = new BinaryType(newSchemaPath, bytes);
 625             } else if (nodeType instanceof BitsTypeDefinition) {
 626                 BitsTypeDefinition bitsType = (BitsTypeDefinition) nodeType;
 627                 result = new BitsType(newSchemaPath, bitsType.getBits());
 628             } else if (nodeType instanceof BooleanTypeDefinition) {
 629                 result = new BooleanType(newSchemaPath);
 630             } else if (nodeType instanceof DecimalTypeDefinition) {
 631                 DecimalTypeDefinition decimalType = (DecimalTypeDefinition) nodeType;
 632                 result = new Decimal64(newSchemaPath, decimalType.getFractionDigits());
 633             } else if (nodeType instanceof EmptyTypeDefinition) {
 634                 result = new EmptyType(newSchemaPath);
 635             } else if (nodeType instanceof EnumTypeDefinition) {
 636                 EnumTypeDefinition enumType = (EnumTypeDefinition) nodeType;
 637                 result = new EnumerationType(newSchemaPath, (EnumPair) enumType.getDefaultValue(), enumType.getValues());
 638             } else if (nodeType instanceof IdentityrefTypeDefinition) {
 639                 IdentityrefTypeDefinition idrefType = (IdentityrefTypeDefinition) nodeType;
 640                 result = new IdentityrefType(idrefType.getIdentity(), newSchemaPath);
 641             } else if (nodeType instanceof InstanceIdentifierTypeDefinition) {
 642                 InstanceIdentifierTypeDefinition instIdType = (InstanceIdentifierTypeDefinition) nodeType;
 643                 return new InstanceIdentifier(newSchemaPath, instIdType.getPathStatement(),
 644                         instIdType.requireInstance());
 645             } else if (nodeType instanceof StringTypeDefinition) {
 646                 result = createNewStringType(parentSchemaPath, nodeQName, (StringTypeDefinition) nodeType);
 647             } else if (nodeType instanceof IntegerTypeDefinition) {
 648                 result = createNewIntType(parentSchemaPath, nodeQName, (IntegerTypeDefinition) nodeType);
 649             } else if (nodeType instanceof UnsignedIntegerTypeDefinition) {
 650                 result = createNewUintType(parentSchemaPath, nodeQName, (UnsignedIntegerTypeDefinition) nodeType);
 651             } else if (nodeType instanceof LeafrefTypeDefinition) {
 652                 result = new Leafref(newSchemaPath, ((LeafrefTypeDefinition) nodeType).getPathStatement());
 653             } else if (nodeType instanceof UnionTypeDefinition) {
 654                 UnionTypeDefinition unionType = (UnionTypeDefinition) nodeType;
 655                 return new UnionType(newSchemaPath, unionType.getTypes());
 656             } else if (nodeType instanceof ExtendedType) {
 657                 ExtendedType extType = (ExtendedType) nodeType;
 658                 result = createNewExtendedType(extType, newSchemaPath);
 659             }
 660         }
 661         return result;
 662     }
 663
 664     /**
 665      * Create new ExtendedType based on given type and with schema path.
 666      *
 667      * @param newPath
 668      *            schema path for new type
 669      * @param oldType
 670      *            type based
 671      * @return
 672      */
 673     private static ExtendedType createNewExtendedType(final ExtendedType oldType, final SchemaPath newPath) {
 674         QName qname = oldType.getQName();
 675         TypeDefinition<?> baseType = oldType.getBaseType();
 676         String desc = oldType.getDescription();
 677         String ref = oldType.getReference();
 678         ExtendedType.Builder builder = new ExtendedType.Builder(qname, baseType, desc, ref, newPath);
 679         builder.status(oldType.getStatus());
 680         builder.lengths(oldType.getLengths());
 681         builder.patterns(oldType.getPatterns());
 682         builder.ranges(oldType.getRanges());
 683         builder.fractionDigits(oldType.getFractionDigits());
 684         builder.unknownSchemaNodes(oldType.getUnknownSchemaNodes());
 685         return builder.build();
 686     }
 687
 688     private static StringTypeDefinition createNewStringType(final SchemaPath schemaPath, final QName nodeQName,
 689             final StringTypeDefinition nodeType) {
 690         final List<QName> path = schemaPath.getPath();
 691         final List<QName> newPath = new ArrayList<QName>(path);
 692         newPath.add(nodeQName);
 693         newPath.add(nodeType.getQName());
 694         final SchemaPath newSchemaPath = new SchemaPath(newPath, schemaPath.isAbsolute());
 695         return new StringType(newSchemaPath);
 696     }
 697
 698     private static IntegerTypeDefinition createNewIntType(final SchemaPath schemaPath, final QName nodeQName,
 699             final IntegerTypeDefinition type) {
 700         final QName typeQName = type.getQName();
 701         final SchemaPath newSchemaPath = createNewSchemaPath(schemaPath, nodeQName, typeQName);
 702         final String localName = typeQName.getLocalName();
 703
 704         if ("int8".equals(localName)) {
 705             return new Int8(newSchemaPath);
 706         } else if ("int16".equals(localName)) {
 707             return new Int16(newSchemaPath);
 708         } else if ("int32".equals(localName)) {
 709             return new Int32(newSchemaPath);
 710         } else if ("int64".equals(localName)) {
 711             return new Int64(newSchemaPath);
 712         } else {
 713             return null;
 714         }
 715     }
 716
 717     private static UnsignedIntegerTypeDefinition createNewUintType(final SchemaPath schemaPath, final QName nodeQName,
 718             final UnsignedIntegerTypeDefinition type) {
 719         final QName typeQName = type.getQName();
 720         final SchemaPath newSchemaPath = createNewSchemaPath(schemaPath, nodeQName, typeQName);
 721         final String localName = typeQName.getLocalName();
 722
 723         if ("uint8".equals(localName)) {
 724             return new Uint8(newSchemaPath);
 725         } else if ("uint16".equals(localName)) {
 726             return new Uint16(newSchemaPath);
 727         } else if ("uint32".equals(localName)) {
 728             return new Uint32(newSchemaPath);
 729         } else if ("uint64".equals(localName)) {
 730             return new Uint64(newSchemaPath);
 731         } else {
 732             return null;
 733         }
 734     }
 735
 736     private static SchemaPath createNewSchemaPath(final SchemaPath schemaPath, final QName currentQName,
 737             final QName qname) {
 738         List<QName> newPath = new ArrayList<QName>(schemaPath.getPath());
 739         newPath.add(currentQName);
 740         newPath.add(qname);
 741         return new SchemaPath(newPath, schemaPath.isAbsolute());
 742     }
 743
 744     /**
 745      * Create LeafSchemaNodeBuilder from given LeafSchemaNode.
 746      *
 747      * @param leaf
 748      *            leaf from which to create builder
 749      * @param line
 750      *            line in module
 751      * @return builder object from leaf
 752      */
 753     public static LeafSchemaNodeBuilder createLeafBuilder(LeafSchemaNode leaf, int line) {
 754         final LeafSchemaNodeBuilder builder = new LeafSchemaNodeBuilder(leaf.getQName(), leaf.getPath(), line);
 755         convertDataSchemaNode(leaf, builder);
 756         builder.setConfiguration(leaf.isConfiguration());
 757         final TypeDefinition<?> type = leaf.getType();
 758         builder.setType(type);
 759         builder.setPath(leaf.getPath());
 760         builder.setUnknownNodes(leaf.getUnknownSchemaNodes());
 761         builder.setDefaultStr(leaf.getDefault());
 762         builder.setUnits(leaf.getUnits());
 763         return builder;
 764     }
 765
 766     public static ContainerSchemaNodeBuilder createContainer(ContainerSchemaNode container, int line) {
 767         final ContainerSchemaNodeBuilder builder = new ContainerSchemaNodeBuilder(line, container.getQName(),
 768                 container.getPath());
 769         convertDataSchemaNode(container, builder);
 770         builder.setConfiguration(container.isConfiguration());
 771         builder.setUnknownNodes(container.getUnknownSchemaNodes());
 772         builder.setChildNodes(container.getChildNodes());
 773         builder.setGroupings(container.getGroupings());
 774         builder.setTypedefs(container.getTypeDefinitions());
 775         builder.setAugmentations(container.getAvailableAugmentations());
 776         builder.setUsesnodes(container.getUses());
 777         builder.setPresence(container.isPresenceContainer());
 778         return builder;
 779     }
 780
 781     public static ListSchemaNodeBuilder createList(ListSchemaNode list, int line) {
 782         ListSchemaNodeBuilder builder = new ListSchemaNodeBuilder(line, list.getQName(), list.getPath());
 783         convertDataSchemaNode(list, builder);
 784         builder.setConfiguration(list.isConfiguration());
 785         builder.setUnknownNodes(list.getUnknownSchemaNodes());
 786         builder.setTypedefs(list.getTypeDefinitions());
 787         builder.setChildNodes(list.getChildNodes());
 788         builder.setGroupings(list.getGroupings());
 789         builder.setAugmentations(list.getAvailableAugmentations());
 790         builder.setUsesnodes(list.getUses());
 791         builder.setUserOrdered(builder.isUserOrdered());
 792         return builder;
 793     }
 794
 795     public static LeafListSchemaNodeBuilder createLeafList(LeafListSchemaNode leafList, int line) {
 796         final LeafListSchemaNodeBuilder builder = new LeafListSchemaNodeBuilder(line, leafList.getQName(),
 797                 leafList.getPath());
 798         convertDataSchemaNode(leafList, builder);
 799         builder.setConfiguration(leafList.isConfiguration());
 800         builder.setType(leafList.getType());
 801         builder.setUnknownNodes(leafList.getUnknownSchemaNodes());
 802         builder.setUserOrdered(leafList.isUserOrdered());
 803         return builder;
 804     }
 805
 806     public static ChoiceBuilder createChoice(ChoiceNode choice, int line) {
 807         final ChoiceBuilder builder = new ChoiceBuilder(line, choice.getQName());
 808         convertDataSchemaNode(choice, builder);
 809         builder.setConfiguration(choice.isConfiguration());
 810         builder.setCases(choice.getCases());
 811         builder.setUnknownNodes(choice.getUnknownSchemaNodes());
 812         builder.setDefaultCase(choice.getDefaultCase());
 813         return builder;
 814     }
 815
 816     public static AnyXmlBuilder createAnyXml(AnyXmlSchemaNode anyxml, int line) {
 817         final AnyXmlBuilder builder = new AnyXmlBuilder(line, anyxml.getQName(), anyxml.getPath());
 818         convertDataSchemaNode(anyxml, builder);
 819         builder.setConfiguration(anyxml.isConfiguration());
 820         builder.setUnknownNodes(anyxml.getUnknownSchemaNodes());
 821         return builder;
 822     }
 823
 824     public static GroupingBuilder createGrouping(GroupingDefinition grouping, int line) {
 825         final GroupingBuilderImpl builder = new GroupingBuilderImpl(grouping.getQName(), line);
 826         builder.setPath(grouping.getPath());
 827         builder.setChildNodes(grouping.getChildNodes());
 828         builder.setGroupings(grouping.getGroupings());
 829         builder.setTypedefs(grouping.getTypeDefinitions());
 830         builder.setUsesnodes(grouping.getUses());
 831         builder.setUnknownNodes(grouping.getUnknownSchemaNodes());
 832         builder.setDescription(grouping.getDescription());
 833         builder.setReference(grouping.getReference());
 834         builder.setStatus(grouping.getStatus());
 835         return builder;
 836     }
 837
 838     public static TypeDefinitionBuilder createTypedef(ExtendedType typedef, int line) {
 839         final TypeDefinitionBuilderImpl builder = new TypeDefinitionBuilderImpl(typedef.getQName(), line);
 840         builder.setPath(typedef.getPath());
 841         builder.setDefaultValue(typedef.getDefaultValue());
 842         builder.setUnits(typedef.getUnits());
 843         builder.setDescription(typedef.getDescription());
 844         builder.setReference(typedef.getReference());
 845         builder.setStatus(typedef.getStatus());
 846         builder.setRanges(typedef.getRanges());
 847         builder.setLengths(typedef.getLengths());
 848         builder.setPatterns(typedef.getPatterns());
 849         builder.setFractionDigits(typedef.getFractionDigits());
 850         final TypeDefinition<?> type = typedef.getBaseType();
 851         builder.setType(type);
 852         builder.setUnits(typedef.getUnits());
 853         builder.setUnknownNodes(typedef.getUnknownSchemaNodes());
 854         return builder;
 855     }
 856
 857     public static UnknownSchemaNodeBuilder createUnknownSchemaNode(UnknownSchemaNode unknownNode, int line) {
 858         final UnknownSchemaNodeBuilder builder = new UnknownSchemaNodeBuilder(line, unknownNode.getQName());
 859         builder.setPath(unknownNode.getPath());
 860         builder.setUnknownNodes(unknownNode.getUnknownSchemaNodes());
 861         builder.setDescription(unknownNode.getDescription());
 862         builder.setReference(unknownNode.getReference());
 863         builder.setStatus(unknownNode.getStatus());
 864         builder.setAddedByUses(unknownNode.isAddedByUses());
 865         builder.setNodeType(unknownNode.getNodeType());
 866         builder.setNodeParameter(unknownNode.getNodeParameter());
 867         return builder;
 868     }
 869
 870     /**
 871      * Set DataSchemaNode arguments to builder object
 872      *
 873      * @param node
 874      *            node from which arguments should be read
 875      * @param builder
 876      *            builder to which arguments should be set
 877      */
 878     private static void convertDataSchemaNode(DataSchemaNode node, DataSchemaNodeBuilder builder) {
 879         builder.setPath(node.getPath());
 880         builder.setDescription(node.getDescription());
 881         builder.setReference(node.getReference());
 882         builder.setStatus(node.getStatus());
 883         builder.setAugmenting(node.isAugmenting());
 884         copyConstraintsFromDefinition(node.getConstraints(), builder.getConstraints());
 885     }
 886
 887     /**
 888      * Copy constraints from constraints definition to constraints builder.
 889      *
 890      * @param nodeConstraints
 891      *            definition from which constraints will be copied
 892      * @param constraints
 893      *            builder to which constraints will be added
 894      */
 895     private static void copyConstraintsFromDefinition(final ConstraintDefinition nodeConstraints,
 896             final ConstraintsBuilder constraints) {
 897         final RevisionAwareXPath when = nodeConstraints.getWhenCondition();
 898         final Set<MustDefinition> must = nodeConstraints.getMustConstraints();
 899
 900         if (when != null) {
 901             constraints.addWhenCondition(when.toString());
 902         }
 903         if (must != null) {
 904             for (MustDefinition md : must) {
 905                 constraints.addMustDefinition(md);
 906             }
 907         }
 908         constraints.setMandatory(nodeConstraints.isMandatory());
 909         constraints.setMinElements(nodeConstraints.getMinElements());
 910         constraints.setMaxElements(nodeConstraints.getMaxElements());
 911     }
 912
 913     public static void processAugmentationOnContext(final AugmentationSchemaBuilder augmentBuilder,
 914             final List<QName> path, final ModuleBuilder module, final String prefix, final int line,
 915             final SchemaContext context) {
 916         final Module dependentModule = findModuleFromContext(context, module, prefix, line);
 917         if (dependentModule == null) {
 918             throw new YangParseException(module.getName(), line, "Failed to find referenced module with prefix "
 919                     + prefix + ".");
 920         }
 921         SchemaNode node = dependentModule.getDataChildByName(path.get(0).getLocalName());
 922         if (node == null) {
 923             Set<NotificationDefinition> notifications = dependentModule.getNotifications();
 924             for (NotificationDefinition ntf : notifications) {
 925                 if (ntf.getQName().getLocalName().equals(path.get(0).getLocalName())) {
 926                     node = ntf;
 927                     break;
 928                 }
 929             }
 930         }
 931         if (node == null) {
 932             return;
 933         }
 934
 935         for (int i = 1; i < path.size(); i++) {
 936             if (node instanceof DataNodeContainer) {
 937                 DataNodeContainer ref = (DataNodeContainer) node;
 938                 node = ref.getDataChildByName(path.get(i).getLocalName());
 939             }
 940         }
 941         if (node == null) {
 942             return;
 943         }
 944
 945         if (node instanceof ContainerSchemaNodeImpl) {
 946             // includes container, input and output statement
 947             ContainerSchemaNodeImpl c = (ContainerSchemaNodeImpl) node;
 948             ContainerSchemaNodeBuilder cb = c.toBuilder();
 949             fillAugmentTarget(augmentBuilder, cb);
 950             ((AugmentationTargetBuilder) cb).addAugmentation(augmentBuilder);
 951             SchemaPath oldPath = cb.getPath();
 952             cb.rebuild();
 953             augmentBuilder.setTargetPath(new SchemaPath(oldPath.getPath(), oldPath.isAbsolute()));
 954             augmentBuilder.setResolved(true);
 955             module.augmentResolved();
 956         } else if (node instanceof ListSchemaNodeImpl) {
 957             ListSchemaNodeImpl l = (ListSchemaNodeImpl) node;
 958             ListSchemaNodeBuilder lb = l.toBuilder();
 959             fillAugmentTarget(augmentBuilder, lb);
 960             ((AugmentationTargetBuilder) lb).addAugmentation(augmentBuilder);
 961             SchemaPath oldPath = lb.getPath();
 962             lb.rebuild();
 963             augmentBuilder.setTargetPath(new SchemaPath(oldPath.getPath(), oldPath.isAbsolute()));
 964             augmentBuilder.setResolved(true);
 965             module.augmentResolved();
 966         } else if (node instanceof ChoiceNodeImpl) {
 967             ChoiceNodeImpl ch = (ChoiceNodeImpl) node;
 968             ChoiceBuilder chb = ch.toBuilder();
 969             fillAugmentTarget(augmentBuilder, chb);
 970             ((AugmentationTargetBuilder) chb).addAugmentation(augmentBuilder);
 971             SchemaPath oldPath = chb.getPath();
 972             chb.rebuild();
 973             augmentBuilder.setTargetPath(new SchemaPath(oldPath.getPath(), oldPath.isAbsolute()));
 974             augmentBuilder.setResolved(true);
 975             module.augmentResolved();
 976         } else if (node instanceof ChoiceCaseNodeImpl) {
 977             ChoiceCaseNodeImpl chc = (ChoiceCaseNodeImpl) node;
 978             ChoiceCaseBuilder chcb = chc.toBuilder();
 979             fillAugmentTarget(augmentBuilder, chcb);
 980             ((AugmentationTargetBuilder) chcb).addAugmentation(augmentBuilder);
 981             SchemaPath oldPath = chcb.getPath();
 982             chcb.rebuild();
 983             augmentBuilder.setTargetPath(new SchemaPath(oldPath.getPath(), oldPath.isAbsolute()));
 984             augmentBuilder.setResolved(true);
 985             module.augmentResolved();
 986         } else if (node instanceof NotificationDefinitionImpl) {
 987             NotificationDefinitionImpl nd = (NotificationDefinitionImpl) node;
 988             NotificationBuilder nb = nd.toBuilder();
 989             fillAugmentTarget(augmentBuilder, nb);
 990             ((AugmentationTargetBuilder) nb).addAugmentation(augmentBuilder);
 991             SchemaPath oldPath = nb.getPath();
 992             nb.rebuild();
 993             augmentBuilder.setTargetPath(new SchemaPath(oldPath.getPath(), oldPath.isAbsolute()));
 994             augmentBuilder.setResolved(true);
 995             module.augmentResolved();
 996         } else {
 997             throw new YangParseException(module.getName(), line, "Target of type " + node.getClass()
 998                     + " can not be augmented.");
 999         }
1000     }
1001
1002     public static void processAugmentation(final AugmentationSchemaBuilder augmentBuilder, final List<QName> path,
1003             final ModuleBuilder module, final ModuleBuilder dependentModuleBuilder) {
1004         DataSchemaNodeBuilder currentParent = null;
1005         for (DataSchemaNodeBuilder child : dependentModuleBuilder.getChildNodeBuilders()) {
1006             final QName childQName = child.getQName();
1007             if (childQName.getLocalName().equals(path.get(0).getLocalName())) {
1008                 currentParent = child;
1009                 break;
1010             }
1011         }
1012
1013         if (currentParent == null) {
1014             return;
1015         }
1016
1017         for (int i = 1; i < path.size(); i++) {
1018             final QName currentQName = path.get(i);
1019             DataSchemaNodeBuilder newParent = null;
1020             if (currentParent instanceof DataNodeContainerBuilder) {
1021                 for (DataSchemaNodeBuilder child : ((DataNodeContainerBuilder) currentParent).getChildNodeBuilders()) {
1022                     final QName childQName = child.getQName();
1023                     if (childQName.getLocalName().equals(currentQName.getLocalName())) {
1024                         newParent = child;
1025                         break;
1026                     }
1027                 }
1028             } else if (currentParent instanceof ChoiceBuilder) {
1029                 for (ChoiceCaseBuilder caseBuilder : ((ChoiceBuilder) currentParent).getCases()) {
1030                     final QName caseQName = caseBuilder.getQName();
1031                     if (caseQName.getLocalName().equals(currentQName.getLocalName())) {
1032                         newParent = caseBuilder;
1033                         break;
1034                     }
1035                 }
1036             }
1037
1038             if (newParent == null) {
1039                 break; // node not found, quit search
1040             } else {
1041                 currentParent = newParent;
1042             }
1043         }
1044
1045         final String currentName = currentParent.getQName().getLocalName();
1046         final String lastAugmentPathElementName = path.get(path.size() - 1).getLocalName();
1047         if (currentName.equals(lastAugmentPathElementName)) {
1048
1049             if (currentParent instanceof ChoiceBuilder) {
1050                 fillAugmentTarget(augmentBuilder, (ChoiceBuilder) currentParent);
1051             } else {
1052                 fillAugmentTarget(augmentBuilder, (DataNodeContainerBuilder) currentParent);
1053             }
1054             ((AugmentationTargetBuilder) currentParent).addAugmentation(augmentBuilder);
1055             SchemaPath oldPath = currentParent.getPath();
1056             augmentBuilder.setTargetPath(new SchemaPath(oldPath.getPath(), oldPath.isAbsolute()));
1057             augmentBuilder.setResolved(true);
1058             module.augmentResolved();
1059         }
1060     }
1061
1062     /**
1063      * Create new type builder based on old type with new base type.
1064      *
1065      * @param newBaseType
1066      *            new base type builder
1067      * @param oldExtendedType
1068      *            old type
1069      * @param modules
1070      *            all loaded modules
1071      * @param module
1072      *            current module
1073      * @param line
1074      *            current line in module
1075      * @return new type builder based on old type with new base type
1076      */
1077     public static TypeDefinitionBuilder extendedTypeWithNewBaseTypeBuilder(final TypeDefinitionBuilder newBaseType,
1078             final ExtendedType oldExtendedType, final Map<String, TreeMap<Date, ModuleBuilder>> modules,
1079             final ModuleBuilder module, final int line) {
1080         final TypeConstraints tc = new TypeConstraints(module.getName(), line);
1081         tc.addFractionDigits(oldExtendedType.getFractionDigits());
1082         tc.addLengths(oldExtendedType.getLengths());
1083         tc.addPatterns(oldExtendedType.getPatterns());
1084         tc.addRanges(oldExtendedType.getRanges());
1085
1086         final TypeConstraints constraints = findConstraintsFromTypeBuilder(newBaseType, tc, modules, module, null);
1087         final TypeDefinitionBuilderImpl newType = new TypeDefinitionBuilderImpl(oldExtendedType.getQName(), line);
1088         newType.setTypedef(newBaseType);
1089         newType.setPath(oldExtendedType.getPath());
1090         newType.setDescription(oldExtendedType.getDescription());
1091         newType.setReference(oldExtendedType.getReference());
1092         newType.setStatus(oldExtendedType.getStatus());
1093         newType.setLengths(constraints.getLength());
1094         newType.setPatterns(constraints.getPatterns());
1095         newType.setRanges(constraints.getRange());
1096         newType.setFractionDigits(constraints.getFractionDigits());
1097         newType.setUnits(oldExtendedType.getUnits());
1098         newType.setDefaultValue(oldExtendedType.getDefaultValue());
1099         newType.setUnknownNodes(oldExtendedType.getUnknownSchemaNodes());
1100         return newType;
1101     }
1102
1103     /**
1104      * Create new type builder based on old type with new base type.
1105      *
1106      * @param newBaseType
1107      *            new base type
1108      * @param oldExtendedType
1109      *            old type
1110      * @param modules
1111      *            all loaded modules
1112      * @param module
1113      *            current module
1114      * @param line
1115      *            current line in module
1116      * @return new type builder based on old type with new base type
1117      */
1118     public static TypeDefinitionBuilder extendedTypeWithNewBaseType(final TypeDefinition<?> newBaseType,
1119             final ExtendedType oldExtendedType, final ModuleBuilder module, final int line) {
1120         final TypeConstraints tc = new TypeConstraints(module.getName(), line);
1121
1122         final TypeConstraints constraints = findConstraintsFromTypeDefinition(newBaseType, tc);
1123         final TypeDefinitionBuilderImpl newType = new TypeDefinitionBuilderImpl(oldExtendedType.getQName(), line);
1124         newType.setType(newBaseType);
1125         newType.setPath(oldExtendedType.getPath());
1126         newType.setDescription(oldExtendedType.getDescription());
1127         newType.setReference(oldExtendedType.getReference());
1128         newType.setStatus(oldExtendedType.getStatus());
1129         newType.setLengths(constraints.getLength());
1130         newType.setPatterns(constraints.getPatterns());
1131         newType.setRanges(constraints.getRange());
1132         newType.setFractionDigits(constraints.getFractionDigits());
1133         newType.setUnits(oldExtendedType.getUnits());
1134         newType.setDefaultValue(oldExtendedType.getDefaultValue());
1135         newType.setUnknownNodes(oldExtendedType.getUnknownSchemaNodes());
1136         return newType;
1137     }
1138
1139     /**
1140      * Pull restrictions from type and add them to constraints.
1141      *
1142      * @param typeToResolve
1143      *            type from which constraints will be read
1144      * @param constraints
1145      *            constraints object to which constraints will be added
1146      * @return constraints contstraints object containing constraints from given
1147      *         type
1148      */
1149     private static TypeConstraints findConstraintsFromTypeDefinition(final TypeDefinition<?> typeToResolve,
1150             final TypeConstraints constraints) {
1151         // union type cannot be restricted
1152         if (typeToResolve instanceof UnionTypeDefinition) {
1153             return constraints;
1154         }
1155         if (typeToResolve instanceof ExtendedType) {
1156             ExtendedType extType = (ExtendedType) typeToResolve;
1157             constraints.addFractionDigits(extType.getFractionDigits());
1158             constraints.addLengths(extType.getLengths());
1159             constraints.addPatterns(extType.getPatterns());
1160             constraints.addRanges(extType.getRanges());
1161             return findConstraintsFromTypeDefinition(extType.getBaseType(), constraints);
1162         } else {
1163             mergeConstraints(typeToResolve, constraints);
1164             return constraints;
1165         }
1166     }
1167
1168     public static TypeConstraints findConstraintsFromTypeBuilder(final TypeAwareBuilder nodeToResolve,
1169             final TypeConstraints constraints, final Map<String, TreeMap<Date, ModuleBuilder>> modules,
1170             final ModuleBuilder builder, final SchemaContext context) {
1171
1172         // union type cannot be restricted
1173         if (nodeToResolve instanceof UnionTypeBuilder) {
1174             return constraints;
1175         }
1176
1177         if (nodeToResolve instanceof TypeDefinitionBuilder) {
1178             TypeDefinitionBuilder typedefToResolve = (TypeDefinitionBuilder) nodeToResolve;
1179             constraints.addFractionDigits(typedefToResolve.getFractionDigits());
1180             constraints.addLengths(typedefToResolve.getLengths());
1181             constraints.addPatterns(typedefToResolve.getPatterns());
1182             constraints.addRanges(typedefToResolve.getRanges());
1183         }
1184
1185         TypeDefinition<?> type = nodeToResolve.getType();
1186         if (type == null) {
1187             return findConstraintsFromTypeBuilder(nodeToResolve.getTypedef(), constraints, modules, builder, context);
1188         } else {
1189             QName qname = type.getQName();
1190             if (type instanceof UnknownType) {
1191                 ModuleBuilder dependentModuleBuilder = findDependentModuleBuilder(modules, builder, qname.getPrefix(),
1192                         nodeToResolve.getLine());
1193                 if (dependentModuleBuilder == null) {
1194                     if (context == null) {
1195                         throw new YangParseException(builder.getName(), nodeToResolve.getLine(),
1196                                 "Failed to resolved type constraints.");
1197                     }
1198                     Module dm = findModuleFromContext(context, builder, qname.getPrefix(), nodeToResolve.getLine());
1199                     TypeDefinition<?> t = findTypeByName(dm.getTypeDefinitions(), qname.getLocalName());
1200                     if (t instanceof ExtendedType) {
1201                         ExtendedType extType = (ExtendedType) t;
1202                         constraints.addFractionDigits(extType.getFractionDigits());
1203                         constraints.addLengths(extType.getLengths());
1204                         constraints.addPatterns(extType.getPatterns());
1205                         constraints.addRanges(extType.getRanges());
1206                         return constraints;
1207                     } else {
1208                         mergeConstraints(t, constraints);
1209                         return constraints;
1210                     }
1211                 } else {
1212                     TypeDefinitionBuilder tdb = findTypeDefinitionBuilder(nodeToResolve, dependentModuleBuilder,
1213                             qname.getLocalName(), builder.getName(), nodeToResolve.getLine());
1214                     return findConstraintsFromTypeBuilder(tdb, constraints, modules, dependentModuleBuilder, context);
1215                 }
1216             } else if (type instanceof ExtendedType) {
1217                 ExtendedType extType = (ExtendedType) type;
1218                 constraints.addFractionDigits(extType.getFractionDigits());
1219                 constraints.addLengths(extType.getLengths());
1220                 constraints.addPatterns(extType.getPatterns());
1221                 constraints.addRanges(extType.getRanges());
1222
1223                 TypeDefinition<?> base = extType.getBaseType();
1224                 if (base instanceof UnknownType) {
1225                     ModuleBuilder dependentModule = findDependentModuleBuilder(modules, builder, base.getQName()
1226                             .getPrefix(), nodeToResolve.getLine());
1227                     TypeDefinitionBuilder tdb = findTypeDefinitionBuilder(nodeToResolve, dependentModule, base
1228                             .getQName().getLocalName(), builder.getName(), nodeToResolve.getLine());
1229                     return findConstraintsFromTypeBuilder(tdb, constraints, modules, dependentModule, context);
1230                 } else {
1231                     // it has to be base yang type
1232                     mergeConstraints(type, constraints);
1233                     return constraints;
1234                 }
1235             } else {
1236                 // it is base yang type
1237                 mergeConstraints(type, constraints);
1238                 return constraints;
1239             }
1240         }
1241     }
1242
1243     /**
1244      * Search for type definition builder by name.
1245      *
1246      * @param dirtyNodeSchemaPath
1247      *            schema path of node which contains unresolved type
1248      * @param dependentModule
1249      *            module which should contains referenced type
1250      * @param typeName
1251      *            name of type definition
1252      * @param currentModuleName
1253      *            name of current module
1254      * @param line
1255      *            current line in yang model
1256      * @return
1257      */
1258     public static TypeDefinitionBuilder findTypeDefinitionBuilder(final TypeAwareBuilder nodeToResolve,
1259             final ModuleBuilder dependentModule, final String typeName, final String currentModuleName, final int line) {
1260
1261         TypeDefinitionBuilder result = null;
1262
1263         Set<TypeDefinitionBuilder> typedefs = dependentModule.getTypeDefinitionBuilders();
1264         result = findTypedefBuilderByName(typedefs, typeName);
1265         if (result != null) {
1266             return result;
1267         }
1268
1269         Builder parent = nodeToResolve.getParent();
1270         while (parent != null) {
1271             if (parent instanceof DataNodeContainerBuilder) {
1272                 typedefs = ((DataNodeContainerBuilder) parent).getTypeDefinitionBuilders();
1273             } else if (parent instanceof RpcDefinitionBuilder) {
1274                 typedefs = ((RpcDefinitionBuilder) parent).getTypeDefinitions();
1275             }
1276             result = findTypedefBuilderByName(typedefs, typeName);
1277             if (result == null) {
1278                 parent = parent.getParent();
1279             } else {
1280                 break;
1281             }
1282         }
1283
1284         if (result == null) {
1285             throw new YangParseException(currentModuleName, line, "Referenced type '" + typeName + "' not found.");
1286         }
1287         return result;
1288     }
1289
1290 }