Fixing sonar issues 3
[yangtools.git] / yang / yang-parser-impl / src / main / java / org / opendaylight / yangtools / yang / parser / builder / impl / ModuleBuilder.java
index cab518c329f035567f33cf77681e8b3431b0dad4..655b99a64a075db67189f23f05bb3337633a5490 100644 (file)
-/*\r
- * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.\r
- *\r
- * This program and the accompanying materials are made available under the\r
- * terms of the Eclipse Public License v1.0 which accompanies this distribution,\r
- * and is available at http://www.eclipse.org/legal/epl-v10.html\r
- */\r
-package org.opendaylight.yangtools.yang.parser.builder.impl;\r
-\r
-import java.net.URI;\r
-import java.util.ArrayList;\r
-import java.util.Collections;\r
-import java.util.Date;\r
-import java.util.HashSet;\r
-import java.util.LinkedHashSet;\r
-import java.util.LinkedList;\r
-import java.util.List;\r
-import java.util.Map;\r
-import java.util.Set;\r
-import java.util.TreeMap;\r
-import java.util.TreeSet;\r
-\r
-import org.opendaylight.yangtools.yang.common.QName;\r
-import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;\r
-import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;\r
-import org.opendaylight.yangtools.yang.model.api.Deviation;\r
-import org.opendaylight.yangtools.yang.model.api.ExtensionDefinition;\r
-import org.opendaylight.yangtools.yang.model.api.FeatureDefinition;\r
-import org.opendaylight.yangtools.yang.model.api.GroupingDefinition;\r
-import org.opendaylight.yangtools.yang.model.api.IdentitySchemaNode;\r
-import org.opendaylight.yangtools.yang.model.api.Module;\r
-import org.opendaylight.yangtools.yang.model.api.ModuleImport;\r
-import org.opendaylight.yangtools.yang.model.api.NotificationDefinition;\r
-import org.opendaylight.yangtools.yang.model.api.RpcDefinition;\r
-import org.opendaylight.yangtools.yang.model.api.SchemaPath;\r
-import org.opendaylight.yangtools.yang.model.api.TypeDefinition;\r
-import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;\r
-import org.opendaylight.yangtools.yang.model.api.UsesNode;\r
-import org.opendaylight.yangtools.yang.parser.builder.api.AbstractDataNodeContainerBuilder;\r
-import org.opendaylight.yangtools.yang.parser.builder.api.AugmentationSchemaBuilder;\r
-import org.opendaylight.yangtools.yang.parser.builder.api.Builder;\r
-import org.opendaylight.yangtools.yang.parser.builder.api.DataNodeContainerBuilder;\r
-import org.opendaylight.yangtools.yang.parser.builder.api.DataSchemaNodeBuilder;\r
-import org.opendaylight.yangtools.yang.parser.builder.api.GroupingBuilder;\r
-import org.opendaylight.yangtools.yang.parser.builder.api.SchemaNodeBuilder;\r
-import org.opendaylight.yangtools.yang.parser.builder.api.TypeAwareBuilder;\r
-import org.opendaylight.yangtools.yang.parser.builder.api.TypeDefinitionBuilder;\r
-import org.opendaylight.yangtools.yang.parser.builder.api.UsesNodeBuilder;\r
-import org.opendaylight.yangtools.yang.parser.util.Comparators;\r
-import org.opendaylight.yangtools.yang.parser.util.RefineHolder;\r
-import org.opendaylight.yangtools.yang.parser.util.YangParseException;\r
-\r
-/**\r
- * Builder of Module object. If this module is dependent on external\r
- * module/modules, these dependencies must be resolved before module is built,\r
- * otherwise result may not be valid.\r
- */\r
-public class ModuleBuilder extends AbstractDataNodeContainerBuilder {\r
-    private final ModuleImpl instance;\r
-    private final String name;\r
-    private final SchemaPath schemaPath;\r
-    private URI namespace;\r
-    private String prefix;\r
-    private Date revision;\r
-\r
-    private final LinkedList<Builder> actualPath = new LinkedList<Builder>();\r
-    private final Set<TypeAwareBuilder> dirtyNodes = new HashSet<TypeAwareBuilder>();\r
-\r
-    private final Set<ModuleImport> imports = new HashSet<ModuleImport>();\r
-    private final List<AugmentationSchemaBuilder> addedAugments = new ArrayList<AugmentationSchemaBuilder>();\r
-    private final List<AugmentationSchemaBuilder> allAugments = new ArrayList<AugmentationSchemaBuilder>();\r
-    private final Set<UsesNodeBuilder> addedUsesNodes = new HashSet<UsesNodeBuilder>();\r
-    private final List<UsesNodeBuilder> allUsesNodes = new ArrayList<UsesNodeBuilder>();\r
-    private final Set<RpcDefinitionBuilder> addedRpcs = new HashSet<RpcDefinitionBuilder>();\r
-    private final Set<NotificationBuilder> addedNotifications = new HashSet<NotificationBuilder>();\r
-    private final Set<IdentitySchemaNodeBuilder> addedIdentities = new HashSet<IdentitySchemaNodeBuilder>();\r
-    private final Set<FeatureBuilder> addedFeatures = new HashSet<FeatureBuilder>();\r
-    private final Set<DeviationBuilder> addedDeviations = new HashSet<DeviationBuilder>();\r
-    private final Set<TypeDefinitionBuilder> addedTypedefs = new HashSet<TypeDefinitionBuilder>();\r
-    private final List<ExtensionBuilder> addedExtensions = new ArrayList<ExtensionBuilder>();\r
-    private final List<UnknownSchemaNodeBuilder> allUnknownNodes = new ArrayList<UnknownSchemaNodeBuilder>();\r
-\r
-    public ModuleBuilder(final String name) {\r
-        super(name, 0, null);\r
-        this.name = name;\r
-        schemaPath = new SchemaPath(Collections.<QName>emptyList(), true);\r
-        instance = new ModuleImpl(name);\r
-        actualPath.push(this);\r
-    }\r
-\r
-    /**\r
-     * Build new Module object based on this builder.\r
-     */\r
-    @Override\r
-    public Module build() {\r
-        instance.setPrefix(prefix);\r
-        instance.setRevision(revision);\r
-        instance.setImports(imports);\r
-        instance.setNamespace(namespace);\r
-\r
-        // TYPEDEFS\r
-        final Set<TypeDefinition<?>> typedefs = new TreeSet<TypeDefinition<?>>(Comparators.SCHEMA_NODE_COMP);\r
-        for (TypeDefinitionBuilder tdb : addedTypedefs) {\r
-            typedefs.add(tdb.build());\r
-        }\r
-        instance.setTypeDefinitions(typedefs);\r
-\r
-        // CHILD NODES\r
-        final Map<QName, DataSchemaNode> children = new TreeMap<QName, DataSchemaNode>(Comparators.QNAME_COMP);\r
-        for (DataSchemaNodeBuilder child : addedChildNodes) {\r
-            children.put(child.getQName(), child.build());\r
-        }\r
-        instance.setChildNodes(children);\r
-\r
-        // GROUPINGS\r
-        final Set<GroupingDefinition> groupings = new TreeSet<GroupingDefinition>(Comparators.SCHEMA_NODE_COMP);\r
-        for (GroupingBuilder gb : addedGroupings) {\r
-            groupings.add(gb.build());\r
-        }\r
-        instance.setGroupings(groupings);\r
-\r
-        // USES\r
-        final Set<UsesNode> usesDefinitions = new HashSet<UsesNode>();\r
-        for (UsesNodeBuilder unb : addedUsesNodes) {\r
-            usesDefinitions.add(unb.build());\r
-        }\r
-        instance.setUses(usesDefinitions);\r
-\r
-        // FEATURES\r
-        final Set<FeatureDefinition> features = new TreeSet<FeatureDefinition>(Comparators.SCHEMA_NODE_COMP);\r
-        for (FeatureBuilder fb : addedFeatures) {\r
-            features.add(fb.build());\r
-        }\r
-        instance.setFeatures(features);\r
-\r
-        // NOTIFICATIONS\r
-        final Set<NotificationDefinition> notifications = new TreeSet<NotificationDefinition>(\r
-                Comparators.SCHEMA_NODE_COMP);\r
-        for (NotificationBuilder entry : addedNotifications) {\r
-            notifications.add(entry.build());\r
-        }\r
-        instance.setNotifications(notifications);\r
-\r
-        // AUGMENTATIONS\r
-        final Set<AugmentationSchema> augmentations = new HashSet<AugmentationSchema>();\r
-        for (AugmentationSchemaBuilder builder : addedAugments) {\r
-            augmentations.add(builder.build());\r
-        }\r
-        instance.setAugmentations(augmentations);\r
-\r
-        // RPCs\r
-        final Set<RpcDefinition> rpcs = new TreeSet<RpcDefinition>(Comparators.SCHEMA_NODE_COMP);\r
-        for (RpcDefinitionBuilder rpc : addedRpcs) {\r
-            rpcs.add(rpc.build());\r
-        }\r
-        instance.setRpcs(rpcs);\r
-\r
-        // DEVIATIONS\r
-        final Set<Deviation> deviations = new HashSet<Deviation>();\r
-        for (DeviationBuilder entry : addedDeviations) {\r
-            deviations.add(entry.build());\r
-        }\r
-        instance.setDeviations(deviations);\r
-\r
-        // EXTENSIONS\r
-        final List<ExtensionDefinition> extensions = new ArrayList<ExtensionDefinition>();\r
-        for (ExtensionBuilder eb : addedExtensions) {\r
-            extensions.add(eb.build());\r
-        }\r
-        Collections.sort(extensions, Comparators.SCHEMA_NODE_COMP);\r
-        instance.setExtensionSchemaNodes(extensions);\r
-\r
-        // IDENTITIES\r
-        final Set<IdentitySchemaNode> identities = new TreeSet<IdentitySchemaNode>(Comparators.SCHEMA_NODE_COMP);\r
-        for (IdentitySchemaNodeBuilder id : addedIdentities) {\r
-            identities.add(id.build());\r
-        }\r
-        instance.setIdentities(identities);\r
-\r
-        // UNKNOWN NODES\r
-        final List<UnknownSchemaNode> unknownNodes = new ArrayList<UnknownSchemaNode>();\r
-        for (UnknownSchemaNodeBuilder unb : addedUnknownNodes) {\r
-            unknownNodes.add(unb.build());\r
-        }\r
-        instance.setUnknownSchemaNodes(unknownNodes);\r
-\r
-        return instance;\r
-    }\r
-\r
-    public boolean isAllUsesDataCollected() {\r
-        for(UsesNodeBuilder usesNode : allUsesNodes) {\r
-            if(!usesNode.isDataCollected()) {\r
-                return false;\r
-            }\r
-        }\r
-        return true;\r
-    }\r
-\r
-    @Override\r
-    public void setParent(Builder parent) {\r
-        throw new YangParseException(name, 0, "Can not set parent to module");\r
-    }\r
-\r
-    @Override\r
-    public SchemaPath getPath() {\r
-        return schemaPath;\r
-    }\r
-\r
-    @Override\r
-    public Set<TypeDefinitionBuilder> getTypeDefinitionBuilders() {\r
-        return addedTypedefs;\r
-    }\r
-\r
-    public void enterNode(final Builder node) {\r
-        actualPath.push(node);\r
-    }\r
-\r
-    public void exitNode() {\r
-        actualPath.pop();\r
-    }\r
-\r
-    public Builder getActualNode() {\r
-        if (actualPath.isEmpty()) {\r
-            return null;\r
-        } else {\r
-            return actualPath.get(0);\r
-        }\r
-    }\r
-\r
-    public Builder getActualParent() {\r
-        if (actualPath.size() < 2) {\r
-            return null;\r
-        } else {\r
-            return actualPath.get(1);\r
-        }\r
-    }\r
-\r
-    public Set<TypeAwareBuilder> getDirtyNodes() {\r
-        return dirtyNodes;\r
-    }\r
-\r
-    public List<AugmentationSchemaBuilder> getAllAugments() {\r
-        return allAugments;\r
-    }\r
-\r
-    public Set<IdentitySchemaNodeBuilder> getIdentities() {\r
-        return addedIdentities;\r
-    }\r
-\r
-    public List<UsesNodeBuilder> getAllUsesNodes() {\r
-        return allUsesNodes;\r
-    }\r
-\r
-    public Set<DeviationBuilder> getDeviations() {\r
-        return addedDeviations;\r
-    }\r
-\r
-    public List<ExtensionBuilder> getExtensions() {\r
-        return addedExtensions;\r
-    }\r
-\r
-    public List<UnknownSchemaNodeBuilder> getAllUnknownNodes() {\r
-        return allUnknownNodes;\r
-    }\r
-\r
-    public String getName() {\r
-        return name;\r
-    }\r
-\r
-    public URI getNamespace() {\r
-        return namespace;\r
-    }\r
-\r
-    public void setNamespace(final URI namespace) {\r
-        this.namespace = namespace;\r
-    }\r
-\r
-    public String getPrefix() {\r
-        return prefix;\r
-    }\r
-\r
-    public Date getRevision() {\r
-        return revision;\r
-    }\r
-\r
-    public void markActualNodeDirty() {\r
-        final TypeAwareBuilder nodeBuilder = (TypeAwareBuilder) getActualNode();\r
-        dirtyNodes.add(nodeBuilder);\r
-    }\r
-\r
-    public void setRevision(final Date revision) {\r
-        this.revision = revision;\r
-    }\r
-\r
-    public void setPrefix(final String prefix) {\r
-        this.prefix = prefix;\r
-    }\r
-\r
-    public void setYangVersion(final String yangVersion) {\r
-        instance.setYangVersion(yangVersion);\r
-    }\r
-\r
-    public void setDescription(final String description) {\r
-        instance.setDescription(description);\r
-    }\r
-\r
-    public void setReference(final String reference) {\r
-        instance.setReference(reference);\r
-    }\r
-\r
-    public void setOrganization(final String organization) {\r
-        instance.setOrganization(organization);\r
-    }\r
-\r
-    public void setContact(final String contact) {\r
-        instance.setContact(contact);\r
-    }\r
-\r
-    public boolean addModuleImport(final String moduleName, final Date revision, final String prefix) {\r
-        final ModuleImport moduleImport = createModuleImport(moduleName, revision, prefix);\r
-        return imports.add(moduleImport);\r
-    }\r
-\r
-    public Set<ModuleImport> getModuleImports() {\r
-        return imports;\r
-    }\r
-\r
-    public ExtensionBuilder addExtension(final QName qname, final int line) {\r
-        final String extName = qname.getLocalName();\r
-        for (ExtensionBuilder addedExtension : addedExtensions) {\r
-            if (addedExtension.getQName().getLocalName().equals(extName)) {\r
-                throw new YangParseException(moduleName, line, "Can not add extension '" + extName\r
-                        + "': extension with same name already declared at line " + addedExtension.getLine());\r
-            }\r
-        }\r
-        final ExtensionBuilder builder = new ExtensionBuilder(name, line, qname);\r
-        addedExtensions.add(builder);\r
-        return builder;\r
-    }\r
-\r
-    public ContainerSchemaNodeBuilder addContainerNode(final int line, final QName qname, final SchemaPath schemaPath) {\r
-        final ContainerSchemaNodeBuilder builder = new ContainerSchemaNodeBuilder(name, line, qname, schemaPath);\r
-\r
-        Builder parent = getActualNode();\r
-        builder.setParent(parent);\r
-        addChildToParent(parent, builder, qname.getLocalName());\r
-\r
-        return builder;\r
-    }\r
-\r
-    public ListSchemaNodeBuilder addListNode(final int line, final QName qname, final SchemaPath schemaPath) {\r
-        final ListSchemaNodeBuilder builder = new ListSchemaNodeBuilder(name, line, qname, schemaPath);\r
-\r
-        Builder parent = getActualNode();\r
-        builder.setParent(parent);\r
-        addChildToParent(parent, builder, qname.getLocalName());\r
-\r
-        return builder;\r
-    }\r
-\r
-    public LeafSchemaNodeBuilder addLeafNode(final int line, final QName qname, final SchemaPath schemaPath) {\r
-        final LeafSchemaNodeBuilder builder = new LeafSchemaNodeBuilder(name, line, qname, schemaPath);\r
-\r
-        Builder parent = getActualNode();\r
-        builder.setParent(parent);\r
-        addChildToParent(parent, builder, qname.getLocalName());\r
-\r
-        return builder;\r
-    }\r
-\r
-    public LeafListSchemaNodeBuilder addLeafListNode(final int line, final QName qname, final SchemaPath schemaPath) {\r
-        final LeafListSchemaNodeBuilder builder = new LeafListSchemaNodeBuilder(name, line, qname, schemaPath);\r
-\r
-        Builder parent = getActualNode();\r
-        builder.setParent(parent);\r
-        addChildToParent(parent, builder, qname.getLocalName());\r
-\r
-        return builder;\r
-    }\r
-\r
-    public GroupingBuilder addGrouping(final int line, final QName qname) {\r
-        final GroupingBuilder builder = new GroupingBuilderImpl(name, line, qname);\r
-\r
-        Builder parent = getActualNode();\r
-        builder.setParent(parent);\r
-\r
-        String groupingName = qname.getLocalName();\r
-        if (parent.equals(this)) {\r
-            for (GroupingBuilder addedGrouping : addedGroupings) {\r
-                if (addedGrouping.getQName().getLocalName().equals(groupingName)) {\r
-                    throw new YangParseException(name, line, "grouping with same name '" + groupingName\r
-                            + "' already declared at line " + addedGrouping.getLine());\r
-                }\r
-            }\r
-            addedGroupings.add(builder);\r
-        } else {\r
-            if (parent instanceof DataNodeContainerBuilder) {\r
-                DataNodeContainerBuilder parentNode = (DataNodeContainerBuilder) parent;\r
-                for (GroupingBuilder addedGrouping : parentNode.getGroupingBuilders()) {\r
-                    if (addedGrouping.getQName().getLocalName().equals(groupingName)) {\r
-                        throw new YangParseException(name, line, "grouping with same name '" + groupingName\r
-                                + "' already declared at line " + addedGrouping.getLine());\r
-                    }\r
-                }\r
-                parentNode.addGrouping(builder);\r
-            } else if (parent instanceof RpcDefinitionBuilder) {\r
-                RpcDefinitionBuilder parentNode = (RpcDefinitionBuilder) parent;\r
-                for (GroupingBuilder child : parentNode.getGroupings()) {\r
-                    if (child.getQName().getLocalName().equals(groupingName)) {\r
-                        throw new YangParseException(name, line, "grouping with same name '" + groupingName\r
-                                + "' already declared at line " + child.getLine());\r
-                    }\r
-                }\r
-                parentNode.addGrouping(builder);\r
-            } else {\r
-                throw new YangParseException(name, line, "Unresolved parent of grouping " + groupingName);\r
-            }\r
-        }\r
-\r
-        return builder;\r
-    }\r
-\r
-    public AugmentationSchemaBuilder addAugment(final int line, final String augmentTargetStr) {\r
-        final AugmentationSchemaBuilder builder = new AugmentationSchemaBuilderImpl(name, line, augmentTargetStr);\r
-\r
-        Builder parent = getActualNode();\r
-        builder.setParent(parent);\r
-\r
-        if (parent.equals(this)) {\r
-            // augment can be declared only under 'module' ...\r
-            addedAugments.add(builder);\r
-        } else {\r
-            // ... or 'uses' statement\r
-            if (parent instanceof UsesNodeBuilder) {\r
-                ((UsesNodeBuilder) parent).addAugment(builder);\r
-            } else {\r
-                throw new YangParseException(name, line, "Augment can be declared only under module or uses statement.");\r
-            }\r
-        }\r
-        allAugments.add(builder);\r
-\r
-        return builder;\r
-    }\r
-\r
-    @Override\r
-    public Set<UsesNodeBuilder> getUsesNodes() {\r
-        return addedUsesNodes;\r
-    }\r
-\r
-    @Override\r
-    public void addUsesNode(UsesNodeBuilder usesBuilder) {\r
-        addedUsesNodes.add(usesBuilder);\r
-        allUsesNodes.add(usesBuilder);\r
-    }\r
-\r
-    public UsesNodeBuilder addUsesNode(final int line, final String groupingPathStr) {\r
-        final UsesNodeBuilder usesBuilder = new UsesNodeBuilderImpl(name, line, groupingPathStr);\r
-\r
-        Builder parent = getActualNode();\r
-        usesBuilder.setParent(parent);\r
-\r
-        if (parent.equals(this)) {\r
-            addedUsesNodes.add(usesBuilder);\r
-        } else {\r
-            if (!(parent instanceof DataNodeContainerBuilder)) {\r
-                throw new YangParseException(name, line, "Unresolved parent of uses '" + groupingPathStr + "'.");\r
-            }\r
-            ((DataNodeContainerBuilder) parent).addUsesNode(usesBuilder);\r
-        }\r
-        allUsesNodes.add(usesBuilder);\r
-        return usesBuilder;\r
-    }\r
-\r
-    public void addRefine(final RefineHolder refine) {\r
-        final Builder parent = getActualNode();\r
-        if (!(parent instanceof UsesNodeBuilder)) {\r
-            throw new YangParseException(name, refine.getLine(), "refine can be defined only in uses statement");\r
-        }\r
-        ((UsesNodeBuilder) parent).addRefine(refine);\r
-        refine.setParent(parent);\r
-    }\r
-\r
-    public RpcDefinitionBuilder addRpc(final int line, final QName qname) {\r
-        Builder parent = getActualNode();\r
-        if (!(parent.equals(this))) {\r
-            throw new YangParseException(name, line, "rpc can be defined only in module or submodule");\r
-        }\r
-\r
-        final RpcDefinitionBuilder rpcBuilder = new RpcDefinitionBuilder(name, line, qname);\r
-        rpcBuilder.setParent(parent);\r
-\r
-        String rpcName = qname.getLocalName();\r
-        for (RpcDefinitionBuilder rpc : addedRpcs) {\r
-            if (rpc.getQName().getLocalName().equals(rpcName)) {\r
-                throw new YangParseException(name, line, "rpc with same name '" + rpcName\r
-                        + "' already declared at line " + rpc.getLine());\r
-            }\r
-        }\r
-        for (DataSchemaNodeBuilder addedChild : addedChildNodes) {\r
-            if (addedChild.getQName().getLocalName().equals(rpcName)) {\r
-                throw new YangParseException(name, line, "Can not add rpc: node with same name '" + rpcName\r
-                        + "' already declared at line " + addedChild.getLine());\r
-            }\r
-        }\r
-        for (NotificationBuilder addedNotification : addedNotifications) {\r
-            if (addedNotification.getQName().getLocalName().equals(rpcName)) {\r
-                throw new YangParseException(name, line, "Can not add rpc: notification with same name '" + rpcName\r
-                        + "' already declared at line " + addedNotification.getLine());\r
-            }\r
-        }\r
-        addedRpcs.add(rpcBuilder);\r
-        return rpcBuilder;\r
-    }\r
-\r
-    public ContainerSchemaNodeBuilder addRpcInput(final int line, final QName qname, final SchemaPath schemaPath) {\r
-        final Builder parent = getActualNode();\r
-        if (!(parent instanceof RpcDefinitionBuilder)) {\r
-            throw new YangParseException(name, line, "input can be defined only in rpc statement");\r
-        }\r
-        final RpcDefinitionBuilder rpc = (RpcDefinitionBuilder) parent;\r
-\r
-        final ContainerSchemaNodeBuilder inputBuilder = new ContainerSchemaNodeBuilder(name, line, qname, schemaPath);\r
-        inputBuilder.setParent(rpc);\r
-\r
-        rpc.setInput(inputBuilder);\r
-        return inputBuilder;\r
-    }\r
-\r
-    public ContainerSchemaNodeBuilder addRpcOutput(final SchemaPath schemaPath, final QName qname, final int line) {\r
-        final Builder parent = getActualNode();\r
-        if (!(parent instanceof RpcDefinitionBuilder)) {\r
-            throw new YangParseException(name, line, "output can be defined only in rpc statement");\r
-        }\r
-        final RpcDefinitionBuilder rpc = (RpcDefinitionBuilder) parent;\r
-\r
-        final ContainerSchemaNodeBuilder outputBuilder = new ContainerSchemaNodeBuilder(name, line, qname, schemaPath);\r
-        outputBuilder.setParent(rpc);\r
-\r
-        rpc.setOutput(outputBuilder);\r
-        return outputBuilder;\r
-    }\r
-\r
-    public NotificationBuilder addNotification(final int line, final QName qname) {\r
-        final Builder parent = getActualNode();\r
-        if (!(parent.equals(this))) {\r
-            throw new YangParseException(name, line, "notification can be defined only in module or submodule");\r
-        }\r
-\r
-        String notificationName = qname.getLocalName();\r
-        for (NotificationBuilder nb : addedNotifications) {\r
-            if (nb.getQName().equals(qname)) {\r
-                throw new YangParseException(name, line, "notification with same name '" + notificationName\r
-                        + "' already declared at line " + nb.getLine());\r
-            }\r
-        }\r
-        for (RpcDefinitionBuilder rpc : addedRpcs) {\r
-            if (rpc.getQName().getLocalName().equals(notificationName)) {\r
-                throw new YangParseException(name, line, "Can not add notification: rpc with same name '"\r
-                        + notificationName + "' already declared at line " + rpc.getLine());\r
-            }\r
-        }\r
-        for (DataSchemaNodeBuilder addedChild : addedChildNodes) {\r
-            if (addedChild.getQName().getLocalName().equals(notificationName)) {\r
-                throw new YangParseException(name, line, "Can not add notification: node with same name '"\r
-                        + notificationName + "' already declared at line " + addedChild.getLine());\r
-            }\r
-        }\r
-\r
-        final NotificationBuilder builder = new NotificationBuilder(name, line, qname);\r
-        builder.setParent(parent);\r
-        addedNotifications.add(builder);\r
-\r
-        return builder;\r
-    }\r
-\r
-    public FeatureBuilder addFeature(final int line, final QName qname) {\r
-        Builder parent = getActualNode();\r
-        if (!(parent.equals(this))) {\r
-            throw new YangParseException(name, line, "feature can be defined only in module or submodule");\r
-        }\r
-\r
-        final FeatureBuilder builder = new FeatureBuilder(name, line, qname);\r
-        builder.setParent(parent);\r
-\r
-        String featureName = qname.getLocalName();\r
-        for (FeatureBuilder addedFeature : addedFeatures) {\r
-            if (addedFeature.getQName().getLocalName().equals(featureName)) {\r
-                throw new YangParseException(name, line, "feature with same name '" + featureName\r
-                        + "' already declared at line " + addedFeature.getLine());\r
-            }\r
-        }\r
-        addedFeatures.add(builder);\r
-        return builder;\r
-    }\r
-\r
-    public ChoiceBuilder addChoice(final int line, final QName qname) {\r
-        final ChoiceBuilder builder = new ChoiceBuilder(name, line, qname);\r
-\r
-        Builder parent = getActualNode();\r
-        builder.setParent(parent);\r
-        addChildToParent(parent, builder, qname.getLocalName());\r
-\r
-        return builder;\r
-    }\r
-\r
-    public ChoiceCaseBuilder addCase(final int line, final QName qname) {\r
-        Builder parent = getActualNode();\r
-        if (parent == null || parent.equals(this)) {\r
-            throw new YangParseException(name, line, "'case' parent not found");\r
-        }\r
-\r
-        final ChoiceCaseBuilder builder = new ChoiceCaseBuilder(name, line, qname);\r
-        builder.setParent(parent);\r
-\r
-        if (parent instanceof ChoiceBuilder) {\r
-            ((ChoiceBuilder) parent).addCase(builder);\r
-        } else if (parent instanceof AugmentationSchemaBuilder) {\r
-            ((AugmentationSchemaBuilder) parent).addChildNode(builder);\r
-        } else {\r
-            throw new YangParseException(name, line, "Unresolved parent of 'case' " + qname.getLocalName());\r
-        }\r
-\r
-        return builder;\r
-    }\r
-\r
-    public AnyXmlBuilder addAnyXml(final int line, final QName qname, final SchemaPath schemaPath) {\r
-        final AnyXmlBuilder builder = new AnyXmlBuilder(name, line, qname, schemaPath);\r
-\r
-        Builder parent = getActualNode();\r
-        builder.setParent(parent);\r
-        addChildToParent(parent, builder, qname.getLocalName());\r
-\r
-        return builder;\r
-    }\r
-\r
-    @Override\r
-    public void addTypedef(TypeDefinitionBuilder typedefBuilder) {\r
-        String nodeName = typedefBuilder.getQName().getLocalName();\r
-        for (TypeDefinitionBuilder tdb : addedTypedefs) {\r
-            if (tdb.getQName().getLocalName().equals(nodeName)) {\r
-                throw new YangParseException(name, typedefBuilder.getLine(), "typedef with same name '" + nodeName\r
-                        + "' already declared at line " + tdb.getLine());\r
-            }\r
-        }\r
-        addedTypedefs.add(typedefBuilder);\r
-    }\r
-\r
-    public TypeDefinitionBuilderImpl addTypedef(final int line, final QName qname) {\r
-        final TypeDefinitionBuilderImpl builder = new TypeDefinitionBuilderImpl(name, line, qname);\r
-\r
-        Builder parent = getActualNode();\r
-        builder.setParent(parent);\r
-\r
-        String typedefName = qname.getLocalName();\r
-        if (parent.equals(this)) {\r
-            for (TypeDefinitionBuilder tdb : addedTypedefs) {\r
-                if (tdb.getQName().getLocalName().equals(typedefName)) {\r
-                    throw new YangParseException(name, line, "typedef with same name '" + typedefName\r
-                            + "' already declared at line " + tdb.getLine());\r
-                }\r
-            }\r
-            addedTypedefs.add(builder);\r
-        } else {\r
-            if (parent instanceof DataNodeContainerBuilder) {\r
-                DataNodeContainerBuilder parentNode = (DataNodeContainerBuilder) parent;\r
-                for (TypeDefinitionBuilder child : parentNode.getTypeDefinitionBuilders()) {\r
-                    if (child.getQName().getLocalName().equals(typedefName)) {\r
-                        throw new YangParseException(name, line, "typedef with same name '" + typedefName\r
-                                + "' already declared at line " + child.getLine());\r
-                    }\r
-                }\r
-                parentNode.addTypedef(builder);\r
-            } else if (parent instanceof RpcDefinitionBuilder) {\r
-                RpcDefinitionBuilder rpcParent = (RpcDefinitionBuilder) parent;\r
-                for (TypeDefinitionBuilder tdb : rpcParent.getTypeDefinitions()) {\r
-                    if (tdb.getQName().getLocalName().equals(builder.getQName().getLocalName())) {\r
-                        throw new YangParseException(name, line, "typedef with same name '" + typedefName\r
-                                + "' already declared at line " + tdb.getLine());\r
-                    }\r
-                }\r
-                rpcParent.addTypedef(builder);\r
-            } else {\r
-                throw new YangParseException(name, line, "Unresolved parent of typedef " + typedefName);\r
-            }\r
-        }\r
-\r
-        return builder;\r
-    }\r
-\r
-    public void setType(final TypeDefinition<?> type) {\r
-        Builder parent = getActualNode();\r
-        if (parent == null || !(parent instanceof TypeAwareBuilder)) {\r
-            throw new YangParseException("Failed to set type '" + type.getQName().getLocalName()\r
-                    + "'. Invalid parent node: " + parent);\r
-        }\r
-        ((TypeAwareBuilder) parent).setType(type);\r
-    }\r
-\r
-    public UnionTypeBuilder addUnionType(final int line, final URI namespace, final Date revision) {\r
-        final Builder parent = getActualNode();\r
-        if (parent == null) {\r
-            throw new YangParseException(name, line, "Unresolved parent of union type");\r
-        } else {\r
-            final UnionTypeBuilder union = new UnionTypeBuilder(name, line);\r
-            if (parent instanceof TypeAwareBuilder) {\r
-                ((TypeAwareBuilder) parent).setTypedef(union);\r
-                return union;\r
-            } else {\r
-                throw new YangParseException(name, line, "Invalid parent of union type.");\r
-            }\r
-        }\r
-    }\r
-\r
-    public void addIdentityrefType(final int line, final SchemaPath schemaPath, final String baseString) {\r
-        final IdentityrefTypeBuilder identityref = new IdentityrefTypeBuilder(name, line, baseString, schemaPath);\r
-\r
-        final Builder parent = getActualNode();\r
-        if (parent == null) {\r
-            throw new YangParseException(name, line, "Unresolved parent of identityref type.");\r
-        } else {\r
-            if (parent instanceof TypeAwareBuilder) {\r
-                final TypeAwareBuilder typeParent = (TypeAwareBuilder) parent;\r
-                typeParent.setTypedef(identityref);\r
-                dirtyNodes.add(typeParent);\r
-            } else {\r
-                throw new YangParseException(name, line, "Invalid parent of identityref type.");\r
-            }\r
-        }\r
-    }\r
-\r
-    public DeviationBuilder addDeviation(final int line, final String targetPath) {\r
-        Builder parent = getActualNode();\r
-        if (!(parent.equals(this))) {\r
-            throw new YangParseException(name, line, "deviation can be defined only in module or submodule");\r
-        }\r
-\r
-        final DeviationBuilder builder = new DeviationBuilder(name, line, targetPath);\r
-        builder.setParent(parent);\r
-        addedDeviations.add(builder);\r
-        return builder;\r
-    }\r
-\r
-    public IdentitySchemaNodeBuilder addIdentity(final QName qname, final int line) {\r
-        Builder parent = getActualNode();\r
-        if (!(parent.equals(this))) {\r
-            throw new YangParseException(name, line, "identity can be defined only in module or submodule");\r
-        }\r
-        String identityName = qname.getLocalName();\r
-        for (IdentitySchemaNodeBuilder idBuilder : addedIdentities) {\r
-            if (idBuilder.getQName().equals(qname)) {\r
-                throw new YangParseException(name, line, "identity with same name '" + identityName\r
-                        + "' already declared at line " + idBuilder.getLine());\r
-            }\r
-        }\r
-\r
-        final IdentitySchemaNodeBuilder builder = new IdentitySchemaNodeBuilder(name, line, qname);\r
-        builder.setParent(parent);\r
-        addedIdentities.add(builder);\r
-        return builder;\r
-    }\r
-\r
-    @Override\r
-    public void addUnknownNodeBuilder(final UnknownSchemaNodeBuilder builder) {\r
-        addedUnknownNodes.add(builder);\r
-        allUnknownNodes.add(builder);\r
-    }\r
-\r
-    public UnknownSchemaNodeBuilder addUnknownSchemaNode(final int line, final QName qname) {\r
-        final Builder parent = getActualNode();\r
-        final UnknownSchemaNodeBuilder builder = new UnknownSchemaNodeBuilder(name, line, qname);\r
-        builder.setParent(parent);\r
-        allUnknownNodes.add(builder);\r
-\r
-        if (parent.equals(this)) {\r
-            addedUnknownNodes.add(builder);\r
-        } else {\r
-            if (parent instanceof SchemaNodeBuilder) {\r
-                ((SchemaNodeBuilder) parent).addUnknownNodeBuilder(builder);\r
-            } else if (parent instanceof DataNodeContainerBuilder) {\r
-                ((DataNodeContainerBuilder) parent).addUnknownNodeBuilder(builder);\r
-            } else if (parent instanceof RefineHolder) {\r
-                ((RefineHolder) parent).addUnknownNodeBuilder(builder);\r
-            } else {\r
-                throw new YangParseException(name, line, "Unresolved parent of unknown node '" + qname.getLocalName()\r
-                        + "'");\r
-            }\r
-        }\r
-\r
-        return builder;\r
-    }\r
-    \r
-    public Set<RpcDefinitionBuilder> getRpcs() {\r
-        return addedRpcs;\r
-    }\r
-\r
-    public Set<NotificationBuilder> getNotifications() {\r
-        return addedNotifications;\r
-    }\r
-    \r
-    @Override\r
-    public String toString() {\r
-        return "module " + name;\r
-    }\r
-\r
-    private final class ModuleImpl implements Module {\r
-        private URI namespace;\r
-        private final String name;\r
-        private Date revision;\r
-        private String prefix;\r
-        private String yangVersion;\r
-        private String description;\r
-        private String reference;\r
-        private String organization;\r
-        private String contact;\r
-        private Set<ModuleImport> imports = Collections.emptySet();\r
-        private Set<FeatureDefinition> features = Collections.emptySet();\r
-        private Set<TypeDefinition<?>> typeDefinitions = Collections.emptySet();\r
-        private Set<NotificationDefinition> notifications = Collections.emptySet();\r
-        private Set<AugmentationSchema> augmentations = Collections.emptySet();\r
-        private Set<RpcDefinition> rpcs = Collections.emptySet();\r
-        private Set<Deviation> deviations = Collections.emptySet();\r
-        private Map<QName, DataSchemaNode> childNodes = Collections.emptyMap();\r
-        private Set<GroupingDefinition> groupings = Collections.emptySet();\r
-        private Set<UsesNode> uses = Collections.emptySet();\r
-        private List<ExtensionDefinition> extensionNodes = Collections.emptyList();\r
-        private Set<IdentitySchemaNode> identities = Collections.emptySet();\r
-        private List<UnknownSchemaNode> unknownNodes = Collections.emptyList();\r
-\r
-        private ModuleImpl(String name) {\r
-            this.name = name;\r
-        }\r
-\r
-        @Override\r
-        public URI getNamespace() {\r
-            return namespace;\r
-        }\r
-\r
-        private void setNamespace(URI namespace) {\r
-            this.namespace = namespace;\r
-        }\r
-\r
-        @Override\r
-        public String getName() {\r
-            return name;\r
-        }\r
-\r
-        @Override\r
-        public Date getRevision() {\r
-            return revision;\r
-        }\r
-\r
-        private void setRevision(Date revision) {\r
-            this.revision = revision;\r
-        }\r
-\r
-        @Override\r
-        public String getPrefix() {\r
-            return prefix;\r
-        }\r
-\r
-        private void setPrefix(String prefix) {\r
-            this.prefix = prefix;\r
-        }\r
-\r
-        @Override\r
-        public String getYangVersion() {\r
-            return yangVersion;\r
-        }\r
-\r
-        private void setYangVersion(String yangVersion) {\r
-            this.yangVersion = yangVersion;\r
-        }\r
-\r
-        @Override\r
-        public String getDescription() {\r
-            return description;\r
-        }\r
-\r
-        private void setDescription(String description) {\r
-            this.description = description;\r
-        }\r
-\r
-        @Override\r
-        public String getReference() {\r
-            return reference;\r
-        }\r
-\r
-        private void setReference(String reference) {\r
-            this.reference = reference;\r
-        }\r
-\r
-        @Override\r
-        public String getOrganization() {\r
-            return organization;\r
-        }\r
-\r
-        private void setOrganization(String organization) {\r
-            this.organization = organization;\r
-        }\r
-\r
-        @Override\r
-        public String getContact() {\r
-            return contact;\r
-        }\r
-\r
-        private void setContact(String contact) {\r
-            this.contact = contact;\r
-        }\r
-\r
-        @Override\r
-        public Set<ModuleImport> getImports() {\r
-            return imports;\r
-        }\r
-\r
-        private void setImports(Set<ModuleImport> imports) {\r
-            if (imports != null) {\r
-                this.imports = imports;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public Set<FeatureDefinition> getFeatures() {\r
-            return features;\r
-        }\r
-\r
-        private void setFeatures(Set<FeatureDefinition> features) {\r
-            if (features != null) {\r
-                this.features = features;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public Set<TypeDefinition<?>> getTypeDefinitions() {\r
-            return typeDefinitions;\r
-        }\r
-\r
-        private void setTypeDefinitions(Set<TypeDefinition<?>> typeDefinitions) {\r
-            if (typeDefinitions != null) {\r
-                this.typeDefinitions = typeDefinitions;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public Set<NotificationDefinition> getNotifications() {\r
-            return notifications;\r
-        }\r
-\r
-        private void setNotifications(Set<NotificationDefinition> notifications) {\r
-            if (notifications != null) {\r
-                this.notifications = notifications;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public Set<AugmentationSchema> getAugmentations() {\r
-            return augmentations;\r
-        }\r
-\r
-        private void setAugmentations(Set<AugmentationSchema> augmentations) {\r
-            if (augmentations != null) {\r
-                this.augmentations = augmentations;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public Set<RpcDefinition> getRpcs() {\r
-            return rpcs;\r
-        }\r
-\r
-        private void setRpcs(Set<RpcDefinition> rpcs) {\r
-            if (rpcs != null) {\r
-                this.rpcs = rpcs;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public Set<Deviation> getDeviations() {\r
-            return deviations;\r
-        }\r
-\r
-        private void setDeviations(Set<Deviation> deviations) {\r
-            if (deviations != null) {\r
-                this.deviations = deviations;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public Set<DataSchemaNode> getChildNodes() {\r
-            return new LinkedHashSet<DataSchemaNode>(childNodes.values());\r
-        }\r
-\r
-        private void setChildNodes(Map<QName, DataSchemaNode> childNodes) {\r
-            if (childNodes != null) {\r
-                this.childNodes = childNodes;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public Set<GroupingDefinition> getGroupings() {\r
-            return groupings;\r
-        }\r
-\r
-        private void setGroupings(Set<GroupingDefinition> groupings) {\r
-            if (groupings != null) {\r
-                this.groupings = groupings;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public Set<UsesNode> getUses() {\r
-            return uses;\r
-        }\r
-\r
-        private void setUses(Set<UsesNode> uses) {\r
-            if (uses != null) {\r
-                this.uses = uses;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public List<ExtensionDefinition> getExtensionSchemaNodes() {\r
-            return extensionNodes;\r
-        }\r
-\r
-        private void setExtensionSchemaNodes(final List<ExtensionDefinition> extensionNodes) {\r
-            if (extensionNodes != null) {\r
-                this.extensionNodes = extensionNodes;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public Set<IdentitySchemaNode> getIdentities() {\r
-            return identities;\r
-        }\r
-\r
-        private void setIdentities(final Set<IdentitySchemaNode> identities) {\r
-            if (identities != null) {\r
-                this.identities = identities;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public List<UnknownSchemaNode> getUnknownSchemaNodes() {\r
-            return unknownNodes;\r
-        }\r
-\r
-        private void setUnknownSchemaNodes(final List<UnknownSchemaNode> unknownNodes) {\r
-            if (unknownNodes != null) {\r
-                this.unknownNodes = unknownNodes;\r
-            }\r
-        }\r
-\r
-        @Override\r
-        public DataSchemaNode getDataChildByName(QName name) {\r
-            return childNodes.get(name);\r
-        }\r
-\r
-        @Override\r
-        public DataSchemaNode getDataChildByName(String name) {\r
-            DataSchemaNode result = null;\r
-            for (Map.Entry<QName, DataSchemaNode> entry : childNodes.entrySet()) {\r
-                if (entry.getKey().getLocalName().equals(name)) {\r
-                    result = entry.getValue();\r
-                    break;\r
-                }\r
-            }\r
-            return result;\r
-        }\r
-\r
-        @Override\r
-        public int hashCode() {\r
-            final int prime = 31;\r
-            int result = 1;\r
-            result = prime * result + ((namespace == null) ? 0 : namespace.hashCode());\r
-            result = prime * result + ((name == null) ? 0 : name.hashCode());\r
-            result = prime * result + ((revision == null) ? 0 : revision.hashCode());\r
-            result = prime * result + ((prefix == null) ? 0 : prefix.hashCode());\r
-            result = prime * result + ((yangVersion == null) ? 0 : yangVersion.hashCode());\r
-            return result;\r
-        }\r
-\r
-        @Override\r
-        public boolean equals(Object obj) {\r
-            if (this == obj) {\r
-                return true;\r
-            }\r
-            if (obj == null) {\r
-                return false;\r
-            }\r
-            if (getClass() != obj.getClass()) {\r
-                return false;\r
-            }\r
-            ModuleImpl other = (ModuleImpl) obj;\r
-            if (namespace == null) {\r
-                if (other.namespace != null) {\r
-                    return false;\r
-                }\r
-            } else if (!namespace.equals(other.namespace)) {\r
-                return false;\r
-            }\r
-            if (name == null) {\r
-                if (other.name != null) {\r
-                    return false;\r
-                }\r
-            } else if (!name.equals(other.name)) {\r
-                return false;\r
-            }\r
-            if (revision == null) {\r
-                if (other.revision != null) {\r
-                    return false;\r
-                }\r
-            } else if (!revision.equals(other.revision)) {\r
-                return false;\r
-            }\r
-            if (prefix == null) {\r
-                if (other.prefix != null) {\r
-                    return false;\r
-                }\r
-            } else if (!prefix.equals(other.prefix)) {\r
-                return false;\r
-            }\r
-            if (yangVersion == null) {\r
-                if (other.yangVersion != null) {\r
-                    return false;\r
-                }\r
-            } else if (!yangVersion.equals(other.yangVersion)) {\r
-                return false;\r
-            }\r
-            return true;\r
-        }\r
-\r
-        @Override\r
-        public String toString() {\r
-            StringBuilder sb = new StringBuilder(ModuleImpl.class.getSimpleName());\r
-            sb.append("[");\r
-            sb.append("name=" + name);\r
-            sb.append(", namespace=" + namespace);\r
-            sb.append(", revision=" + revision);\r
-            sb.append(", prefix=" + prefix);\r
-            sb.append(", yangVersion=" + yangVersion);\r
-            sb.append("]");\r
-            return sb.toString();\r
-        }\r
-    }\r
-\r
-    /**\r
-     * Add child to parent. Method checks for duplicates and add given child\r
-     * node to parent. If node with same name is found, throws exception. If\r
-     * parent is null, child node will be added directly to module.\r
-     *\r
-     * @param parent\r
-     * @param child\r
-     * @param childName\r
-     */\r
-    private void addChildToParent(final Builder parent, final DataSchemaNodeBuilder child, final String childName) {\r
-        final int line = child.getLine();\r
-        if (parent.equals(this)) {\r
-            // if parent == null => node is defined under module\r
-            // All leafs, leaf-lists, lists, containers, choices, rpcs,\r
-            // notifications, and anyxmls defined within a parent node or at the\r
-            // top level of the module or its submodules share the same\r
-            // identifier namespace.\r
-            for (DataSchemaNodeBuilder childNode : addedChildNodes) {\r
-                if (childNode.getQName().getLocalName().equals(childName)) {\r
-                    throw new YangParseException(name, line, "Can not add '" + child\r
-                            + "': node with same name already declared at line " + childNode.getLine());\r
-                }\r
-            }\r
-            for (RpcDefinitionBuilder rpc : addedRpcs) {\r
-                if (rpc.getQName().getLocalName().equals(childName)) {\r
-                    throw new YangParseException(name, line, "Can not add '" + child\r
-                            + "': rpc with same name already declared at line " + rpc.getLine());\r
-                }\r
-            }\r
-            for (NotificationBuilder notification : addedNotifications) {\r
-                if (notification.getQName().getLocalName().equals(childName)) {\r
-                    throw new YangParseException(name, line, "Can not add '" + child\r
-                            + "': notification with same name already declared at line " + notification.getLine());\r
-                }\r
-            }\r
-            addedChildNodes.add(child);\r
-        } else {\r
-            if(parent instanceof AugmentationSchemaBuilder) {\r
-                child.setAugmenting(true);\r
-            }\r
-            // no need for checking rpc and notification because they can be\r
-            // defined only under module or submodule\r
-            if (parent instanceof DataNodeContainerBuilder) {\r
-                DataNodeContainerBuilder parentNode = (DataNodeContainerBuilder) parent;\r
-                for (DataSchemaNodeBuilder childNode : parentNode.getChildNodeBuilders()) {\r
-                    if (childNode.getQName().getLocalName().equals(childName)) {\r
-                        throw new YangParseException(name, line, "Can not add '" + child + "': node with same name '"\r
-                                + childName + "' already declared at line " + childNode.getLine());\r
-                    }\r
-                }\r
-                parentNode.addChildNode(child);\r
-            } else if (parent instanceof ChoiceBuilder) {\r
-                ChoiceBuilder parentNode = (ChoiceBuilder) parent;\r
-                for (ChoiceCaseBuilder caseBuilder : parentNode.getCases()) {\r
-                    if (caseBuilder.getQName().getLocalName().equals(childName)) {\r
-                        throw new YangParseException(name, line, "Can not add '" + child + "': case with same name '"\r
-                                + childName + "' already declared at line " + caseBuilder.getLine());\r
-                    }\r
-                }\r
-                parentNode.addCase(child);\r
-            } else {\r
-                throw new YangParseException(name, line, "Unresolved parent of node '" + childName + "'.");\r
-            }\r
-        }\r
-    }\r
-\r
-    private ModuleImport createModuleImport(final String moduleName, final Date revision, final String prefix) {\r
-        final ModuleImport moduleImport = new ModuleImport() {\r
-            @Override\r
-            public String getModuleName() {\r
-                return moduleName;\r
-            }\r
-\r
-            @Override\r
-            public Date getRevision() {\r
-                return revision;\r
-            }\r
-\r
-            @Override\r
-            public String getPrefix() {\r
-                return prefix;\r
-            }\r
-\r
-            @Override\r
-            public int hashCode() {\r
-                final int prime = 31;\r
-                int result = 1;\r
-                result = prime * result + ((moduleName == null) ? 0 : moduleName.hashCode());\r
-                result = prime * result + ((revision == null) ? 0 : revision.hashCode());\r
-                result = prime * result + ((prefix == null) ? 0 : prefix.hashCode());\r
-                return result;\r
-            }\r
-\r
-            @Override\r
-            public boolean equals(Object obj) {\r
-                if (this == obj) {\r
-                    return true;\r
-                }\r
-                if (obj == null) {\r
-                    return false;\r
-                }\r
-                if (getClass() != obj.getClass()) {\r
-                    return false;\r
-                }\r
-                ModuleImport other = (ModuleImport) obj;\r
-                if (getModuleName() == null) {\r
-                    if (other.getModuleName() != null) {\r
-                        return false;\r
-                    }\r
-                } else if (!getModuleName().equals(other.getModuleName())) {\r
-                    return false;\r
-                }\r
-                if (getRevision() == null) {\r
-                    if (other.getRevision() != null) {\r
-                        return false;\r
-                    }\r
-                } else if (!getRevision().equals(other.getRevision())) {\r
-                    return false;\r
-                }\r
-                if (getPrefix() == null) {\r
-                    if (other.getPrefix() != null) {\r
-                        return false;\r
-                    }\r
-                } else if (!getPrefix().equals(other.getPrefix())) {\r
-                    return false;\r
-                }\r
-                return true;\r
-            }\r
-\r
-            @Override\r
-            public String toString() {\r
-                return "ModuleImport[moduleName=" + moduleName + ", revision=" + revision + ", prefix=" + prefix + "]";\r
-            }\r
-        };\r
-        return moduleImport;\r
-    }\r
-\r
-}\r
+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others.  All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.yangtools.yang.parser.builder.impl;
+
+import java.net.URI;
+import java.util.ArrayList;
+import java.util.Collections;
+import java.util.Date;
+import java.util.Deque;
+import java.util.HashSet;
+import java.util.LinkedHashSet;
+import java.util.LinkedList;
+import java.util.List;
+import java.util.Map;
+import java.util.Set;
+import java.util.TreeMap;
+import java.util.TreeSet;
+
+import org.opendaylight.yangtools.yang.common.QName;
+import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
+import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.Deviation;
+import org.opendaylight.yangtools.yang.model.api.ExtensionDefinition;
+import org.opendaylight.yangtools.yang.model.api.FeatureDefinition;
+import org.opendaylight.yangtools.yang.model.api.GroupingDefinition;
+import org.opendaylight.yangtools.yang.model.api.IdentitySchemaNode;
+import org.opendaylight.yangtools.yang.model.api.Module;
+import org.opendaylight.yangtools.yang.model.api.ModuleImport;
+import org.opendaylight.yangtools.yang.model.api.NotificationDefinition;
+import org.opendaylight.yangtools.yang.model.api.RpcDefinition;
+import org.opendaylight.yangtools.yang.model.api.SchemaPath;
+import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
+import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
+import org.opendaylight.yangtools.yang.model.api.UsesNode;
+import org.opendaylight.yangtools.yang.parser.builder.api.AbstractDataNodeContainerBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.api.AugmentationSchemaBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.api.Builder;
+import org.opendaylight.yangtools.yang.parser.builder.api.DataNodeContainerBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.api.DataSchemaNodeBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.api.GroupingBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.api.SchemaNodeBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.api.TypeAwareBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.api.TypeDefinitionBuilder;
+import org.opendaylight.yangtools.yang.parser.builder.api.UsesNodeBuilder;
+import org.opendaylight.yangtools.yang.parser.util.Comparators;
+import org.opendaylight.yangtools.yang.parser.util.RefineHolder;
+import org.opendaylight.yangtools.yang.parser.util.YangParseException;
+
+/**
+ * Builder of Module object. If this module is dependent on external
+ * module/modules, these dependencies must be resolved before module is built,
+ * otherwise result may not be valid.
+ */
+public class ModuleBuilder extends AbstractDataNodeContainerBuilder {
+
+    private final ModuleImpl instance;
+    private final String name;
+    private final SchemaPath schemaPath;
+    private URI namespace;
+    private String prefix;
+    private Date revision;
+
+    private final Deque<Builder> actualPath = new LinkedList<Builder>();
+    private final Set<TypeAwareBuilder> dirtyNodes = new HashSet<TypeAwareBuilder>();
+
+    private final Set<ModuleImport> imports = new HashSet<ModuleImport>();
+    private final List<AugmentationSchemaBuilder> addedAugments = new ArrayList<AugmentationSchemaBuilder>();
+    private final List<AugmentationSchemaBuilder> allAugments = new ArrayList<AugmentationSchemaBuilder>();
+    private final Set<UsesNodeBuilder> addedUsesNodes = new HashSet<UsesNodeBuilder>();
+    private final List<UsesNodeBuilder> allUsesNodes = new ArrayList<UsesNodeBuilder>();
+    private final Set<RpcDefinitionBuilder> addedRpcs = new HashSet<RpcDefinitionBuilder>();
+    private final Set<NotificationBuilder> addedNotifications = new HashSet<NotificationBuilder>();
+    private final Set<IdentitySchemaNodeBuilder> addedIdentities = new HashSet<IdentitySchemaNodeBuilder>();
+    private final Set<FeatureBuilder> addedFeatures = new HashSet<FeatureBuilder>();
+    private final Set<DeviationBuilder> addedDeviations = new HashSet<DeviationBuilder>();
+    private final Set<TypeDefinitionBuilder> addedTypedefs = new HashSet<TypeDefinitionBuilder>();
+    private final List<ExtensionBuilder> addedExtensions = new ArrayList<ExtensionBuilder>();
+    private final List<UnknownSchemaNodeBuilder> allUnknownNodes = new ArrayList<UnknownSchemaNodeBuilder>();
+
+    public ModuleBuilder(final String name) {
+        super(name, 0, null);
+        this.name = name;
+        schemaPath = new SchemaPath(Collections.<QName> emptyList(), true);
+        instance = new ModuleImpl(name);
+        actualPath.push(this);
+    }
+
+    /**
+     * Build new Module object based on this builder.
+     */
+    @Override
+    public Module build() {
+        instance.setPrefix(prefix);
+        instance.setRevision(revision);
+        instance.setImports(imports);
+        instance.setNamespace(namespace);
+
+        // TYPEDEFS
+        final Set<TypeDefinition<?>> typedefs = new TreeSet<TypeDefinition<?>>(Comparators.SCHEMA_NODE_COMP);
+        for (TypeDefinitionBuilder tdb : addedTypedefs) {
+            typedefs.add(tdb.build());
+        }
+        instance.setTypeDefinitions(typedefs);
+
+        // CHILD NODES
+        final Map<QName, DataSchemaNode> children = new TreeMap<QName, DataSchemaNode>(Comparators.QNAME_COMP);
+        for (DataSchemaNodeBuilder child : addedChildNodes) {
+            children.put(child.getQName(), child.build());
+        }
+        instance.setChildNodes(children);
+
+        // GROUPINGS
+        final Set<GroupingDefinition> groupings = new TreeSet<GroupingDefinition>(Comparators.SCHEMA_NODE_COMP);
+        for (GroupingBuilder gb : addedGroupings) {
+            groupings.add(gb.build());
+        }
+        instance.setGroupings(groupings);
+
+        // USES
+        final Set<UsesNode> usesDefinitions = new HashSet<UsesNode>();
+        for (UsesNodeBuilder unb : addedUsesNodes) {
+            usesDefinitions.add(unb.build());
+        }
+        instance.setUses(usesDefinitions);
+
+        // FEATURES
+        final Set<FeatureDefinition> features = new TreeSet<FeatureDefinition>(Comparators.SCHEMA_NODE_COMP);
+        for (FeatureBuilder fb : addedFeatures) {
+            features.add(fb.build());
+        }
+        instance.setFeatures(features);
+
+        // NOTIFICATIONS
+        final Set<NotificationDefinition> notifications = new TreeSet<NotificationDefinition>(
+                Comparators.SCHEMA_NODE_COMP);
+        for (NotificationBuilder entry : addedNotifications) {
+            notifications.add(entry.build());
+        }
+        instance.setNotifications(notifications);
+
+        // AUGMENTATIONS
+        final Set<AugmentationSchema> augmentations = new HashSet<AugmentationSchema>();
+        for (AugmentationSchemaBuilder builder : addedAugments) {
+            augmentations.add(builder.build());
+        }
+        instance.setAugmentations(augmentations);
+
+        // RPCs
+        final Set<RpcDefinition> rpcs = new TreeSet<RpcDefinition>(Comparators.SCHEMA_NODE_COMP);
+        for (RpcDefinitionBuilder rpc : addedRpcs) {
+            rpcs.add(rpc.build());
+        }
+        instance.setRpcs(rpcs);
+
+        // DEVIATIONS
+        final Set<Deviation> deviations = new HashSet<Deviation>();
+        for (DeviationBuilder entry : addedDeviations) {
+            deviations.add(entry.build());
+        }
+        instance.setDeviations(deviations);
+
+        // EXTENSIONS
+        final List<ExtensionDefinition> extensions = new ArrayList<ExtensionDefinition>();
+        for (ExtensionBuilder eb : addedExtensions) {
+            extensions.add(eb.build());
+        }
+        Collections.sort(extensions, Comparators.SCHEMA_NODE_COMP);
+        instance.setExtensionSchemaNodes(extensions);
+
+        // IDENTITIES
+        final Set<IdentitySchemaNode> identities = new TreeSet<IdentitySchemaNode>(Comparators.SCHEMA_NODE_COMP);
+        for (IdentitySchemaNodeBuilder id : addedIdentities) {
+            identities.add(id.build());
+        }
+        instance.setIdentities(identities);
+
+        // UNKNOWN NODES
+        final List<UnknownSchemaNode> unknownNodes = new ArrayList<UnknownSchemaNode>();
+        for (UnknownSchemaNodeBuilder unb : addedUnknownNodes) {
+            unknownNodes.add(unb.build());
+        }
+        instance.setUnknownSchemaNodes(unknownNodes);
+
+        return instance;
+    }
+
+    public boolean isAllUsesDataCollected() {
+        for (UsesNodeBuilder usesNode : allUsesNodes) {
+            if (!usesNode.isDataCollected()) {
+                return false;
+            }
+        }
+        return true;
+    }
+
+    @Override
+    public void setParent(Builder parent) {
+        throw new YangParseException(name, 0, "Can not set parent to module");
+    }
+
+    @Override
+    public SchemaPath getPath() {
+        return schemaPath;
+    }
+
+    @Override
+    public Set<TypeDefinitionBuilder> getTypeDefinitionBuilders() {
+        return addedTypedefs;
+    }
+
+    public void enterNode(final Builder node) {
+        actualPath.push(node);
+    }
+
+    public void exitNode() {
+        actualPath.pop();
+    }
+
+    public Builder getActualNode() {
+        if (actualPath.isEmpty()) {
+            return null;
+        } else {
+            return actualPath.peekFirst();
+        }
+    }
+
+    public Builder getActualParent() {
+        if (actualPath.size() < 2) {
+            return null;
+        } else {
+            Builder builderChild = actualPath.removeFirst();
+            Builder builderParent = actualPath.peekFirst();
+            actualPath.addFirst(builderChild);
+            return builderParent;
+        }
+    }
+
+    public Set<TypeAwareBuilder> getDirtyNodes() {
+        return dirtyNodes;
+    }
+
+    public List<AugmentationSchemaBuilder> getAllAugments() {
+        return allAugments;
+    }
+
+    public Set<IdentitySchemaNodeBuilder> getIdentities() {
+        return addedIdentities;
+    }
+
+    public List<UsesNodeBuilder> getAllUsesNodes() {
+        return allUsesNodes;
+    }
+
+    public Set<DeviationBuilder> getDeviations() {
+        return addedDeviations;
+    }
+
+    public List<ExtensionBuilder> getExtensions() {
+        return addedExtensions;
+    }
+
+    public List<UnknownSchemaNodeBuilder> getAllUnknownNodes() {
+        return allUnknownNodes;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public URI getNamespace() {
+        return namespace;
+    }
+
+    public void setNamespace(final URI namespace) {
+        this.namespace = namespace;
+    }
+
+    public String getPrefix() {
+        return prefix;
+    }
+
+    public Date getRevision() {
+        return revision;
+    }
+
+    public void markActualNodeDirty() {
+        final TypeAwareBuilder nodeBuilder = (TypeAwareBuilder) getActualNode();
+        dirtyNodes.add(nodeBuilder);
+    }
+
+    public void setRevision(final Date revision) {
+        this.revision = revision;
+    }
+
+    public void setPrefix(final String prefix) {
+        this.prefix = prefix;
+    }
+
+    public void setYangVersion(final String yangVersion) {
+        instance.setYangVersion(yangVersion);
+    }
+
+    public void setDescription(final String description) {
+        instance.setDescription(description);
+    }
+
+    public void setReference(final String reference) {
+        instance.setReference(reference);
+    }
+
+    public void setOrganization(final String organization) {
+        instance.setOrganization(organization);
+    }
+
+    public void setContact(final String contact) {
+        instance.setContact(contact);
+    }
+
+    public boolean addModuleImport(final String moduleName, final Date revision, final String prefix) {
+        final ModuleImport moduleImport = createModuleImport(moduleName, revision, prefix);
+        return imports.add(moduleImport);
+    }
+
+    public Set<ModuleImport> getModuleImports() {
+        return imports;
+    }
+
+    public ExtensionBuilder addExtension(final QName qname, final int line) {
+        final String extName = qname.getLocalName();
+        for (ExtensionBuilder addedExtension : addedExtensions) {
+            if (addedExtension.getQName().getLocalName().equals(extName)) {
+                raiseYangParserException("extension", "node", extName, line, addedExtension.getLine());
+            }
+        }
+        final ExtensionBuilder builder = new ExtensionBuilder(name, line, qname);
+        addedExtensions.add(builder);
+        return builder;
+    }
+
+    public ContainerSchemaNodeBuilder addContainerNode(final int line, final QName qname, final SchemaPath schemaPath) {
+        final ContainerSchemaNodeBuilder builder = new ContainerSchemaNodeBuilder(name, line, qname, schemaPath);
+
+        Builder parent = getActualNode();
+        builder.setParent(parent);
+        addChildToParent(parent, builder, qname.getLocalName());
+
+        return builder;
+    }
+
+    public ListSchemaNodeBuilder addListNode(final int line, final QName qname, final SchemaPath schemaPath) {
+        final ListSchemaNodeBuilder builder = new ListSchemaNodeBuilder(name, line, qname, schemaPath);
+
+        Builder parent = getActualNode();
+        builder.setParent(parent);
+        addChildToParent(parent, builder, qname.getLocalName());
+
+        return builder;
+    }
+
+    public LeafSchemaNodeBuilder addLeafNode(final int line, final QName qname, final SchemaPath schemaPath) {
+        final LeafSchemaNodeBuilder builder = new LeafSchemaNodeBuilder(name, line, qname, schemaPath);
+
+        Builder parent = getActualNode();
+        builder.setParent(parent);
+        addChildToParent(parent, builder, qname.getLocalName());
+
+        return builder;
+    }
+
+    public LeafListSchemaNodeBuilder addLeafListNode(final int line, final QName qname, final SchemaPath schemaPath) {
+        final LeafListSchemaNodeBuilder builder = new LeafListSchemaNodeBuilder(name, line, qname, schemaPath);
+
+        Builder parent = getActualNode();
+        builder.setParent(parent);
+        addChildToParent(parent, builder, qname.getLocalName());
+
+        return builder;
+    }
+
+    public GroupingBuilder addGrouping(final int line, final QName qname) {
+        final GroupingBuilder builder = new GroupingBuilderImpl(name, line, qname);
+
+        Builder parent = getActualNode();
+        builder.setParent(parent);
+
+        String groupingName = qname.getLocalName();
+        if (parent.equals(this)) {
+            for (GroupingBuilder addedGrouping : addedGroupings) {
+                if (addedGrouping.getQName().getLocalName().equals(groupingName)) {
+                    raiseYangParserException("", "Grouping", groupingName, line, addedGrouping.getLine());
+                }
+            }
+            addedGroupings.add(builder);
+        } else {
+            if (parent instanceof DataNodeContainerBuilder) {
+                DataNodeContainerBuilder parentNode = (DataNodeContainerBuilder) parent;
+                for (GroupingBuilder addedGrouping : parentNode.getGroupingBuilders()) {
+                    if (addedGrouping.getQName().getLocalName().equals(groupingName)) {
+                        raiseYangParserException("", "Grouping", groupingName, line, addedGrouping.getLine());
+                    }
+                }
+                parentNode.addGrouping(builder);
+            } else if (parent instanceof RpcDefinitionBuilder) {
+                RpcDefinitionBuilder parentNode = (RpcDefinitionBuilder) parent;
+                for (GroupingBuilder child : parentNode.getGroupings()) {
+                    if (child.getQName().getLocalName().equals(groupingName)) {
+                        raiseYangParserException("", "Grouping", groupingName, line, child.getLine());
+                    }
+                }
+                parentNode.addGrouping(builder);
+            } else {
+                throw new YangParseException(name, line, "Unresolved parent of grouping " + groupingName);
+            }
+        }
+
+        return builder;
+    }
+
+    public AugmentationSchemaBuilder addAugment(final int line, final String augmentTargetStr) {
+        final AugmentationSchemaBuilder builder = new AugmentationSchemaBuilderImpl(name, line, augmentTargetStr);
+
+        Builder parent = getActualNode();
+        builder.setParent(parent);
+
+        if (parent.equals(this)) {
+            // augment can be declared only under 'module' ...
+            addedAugments.add(builder);
+        } else {
+            // ... or 'uses' statement
+            if (parent instanceof UsesNodeBuilder) {
+                ((UsesNodeBuilder) parent).addAugment(builder);
+            } else {
+                throw new YangParseException(name, line, "Augment can be declared only under module or uses statement.");
+            }
+        }
+        allAugments.add(builder);
+
+        return builder;
+    }
+
+    @Override
+    public Set<UsesNodeBuilder> getUsesNodes() {
+        return addedUsesNodes;
+    }
+
+    @Override
+    public void addUsesNode(UsesNodeBuilder usesBuilder) {
+        addedUsesNodes.add(usesBuilder);
+        allUsesNodes.add(usesBuilder);
+    }
+
+    public UsesNodeBuilder addUsesNode(final int line, final String groupingPathStr) {
+        final UsesNodeBuilder usesBuilder = new UsesNodeBuilderImpl(name, line, groupingPathStr);
+
+        Builder parent = getActualNode();
+        usesBuilder.setParent(parent);
+
+        if (parent.equals(this)) {
+            addedUsesNodes.add(usesBuilder);
+        } else {
+            if (!(parent instanceof DataNodeContainerBuilder)) {
+                throw new YangParseException(name, line, "Unresolved parent of uses '" + groupingPathStr + "'.");
+            }
+            ((DataNodeContainerBuilder) parent).addUsesNode(usesBuilder);
+        }
+        allUsesNodes.add(usesBuilder);
+        return usesBuilder;
+    }
+
+    public void addRefine(final RefineHolder refine) {
+        final Builder parent = getActualNode();
+        if (!(parent instanceof UsesNodeBuilder)) {
+            throw new YangParseException(name, refine.getLine(), "refine can be defined only in uses statement");
+        }
+        ((UsesNodeBuilder) parent).addRefine(refine);
+        refine.setParent(parent);
+    }
+
+    public RpcDefinitionBuilder addRpc(final int line, final QName qname) {
+        Builder parent = getActualNode();
+        if (!(parent.equals(this))) {
+            throw new YangParseException(name, line, "rpc can be defined only in module or submodule");
+        }
+
+        final RpcDefinitionBuilder rpcBuilder = new RpcDefinitionBuilder(name, line, qname);
+        rpcBuilder.setParent(parent);
+
+        String rpcName = qname.getLocalName();
+        for (RpcDefinitionBuilder rpc : addedRpcs) {
+            if (rpc.getQName().getLocalName().equals(rpcName)) {
+                raiseYangParserException("", "rpc", rpcName, line, rpc.getLine());
+            }
+        }
+        for (DataSchemaNodeBuilder addedChild : addedChildNodes) {
+            if (addedChild.getQName().getLocalName().equals(rpcName)) {
+                raiseYangParserException("rpc", "node", rpcName, line, addedChild.getLine());
+            }
+        }
+        for (NotificationBuilder addedNotification : addedNotifications) {
+            if (addedNotification.getQName().getLocalName().equals(rpcName)) {
+                raiseYangParserException("rpc", "notification", rpcName, line, addedNotification.getLine());
+            }
+        }
+        addedRpcs.add(rpcBuilder);
+        return rpcBuilder;
+    }
+
+    public ContainerSchemaNodeBuilder addRpcInput(final int line, final QName qname, final SchemaPath schemaPath) {
+        final Builder parent = getActualNode();
+        if (!(parent instanceof RpcDefinitionBuilder)) {
+            throw new YangParseException(name, line, "input can be defined only in rpc statement");
+        }
+        final RpcDefinitionBuilder rpc = (RpcDefinitionBuilder) parent;
+
+        final ContainerSchemaNodeBuilder inputBuilder = new ContainerSchemaNodeBuilder(name, line, qname, schemaPath);
+        inputBuilder.setParent(rpc);
+
+        rpc.setInput(inputBuilder);
+        return inputBuilder;
+    }
+
+    public ContainerSchemaNodeBuilder addRpcOutput(final SchemaPath schemaPath, final QName qname, final int line) {
+        final Builder parent = getActualNode();
+        if (!(parent instanceof RpcDefinitionBuilder)) {
+            throw new YangParseException(name, line, "output can be defined only in rpc statement");
+        }
+        final RpcDefinitionBuilder rpc = (RpcDefinitionBuilder) parent;
+
+        final ContainerSchemaNodeBuilder outputBuilder = new ContainerSchemaNodeBuilder(name, line, qname, schemaPath);
+        outputBuilder.setParent(rpc);
+
+        rpc.setOutput(outputBuilder);
+        return outputBuilder;
+    }
+
+    public NotificationBuilder addNotification(final int line, final QName qname) {
+        final Builder parent = getActualNode();
+        if (!(parent.equals(this))) {
+            throw new YangParseException(name, line, "notification can be defined only in module or submodule");
+        }
+
+        String notificationName = qname.getLocalName();
+        for (NotificationBuilder nb : addedNotifications) {
+            if (nb.getQName().equals(qname)) {
+                raiseYangParserException("", "notification", notificationName, line, nb.getLine());
+            }
+        }
+        for (RpcDefinitionBuilder rpc : addedRpcs) {
+            if (rpc.getQName().getLocalName().equals(notificationName)) {
+                raiseYangParserException("notification", "rpc", notificationName, line, rpc.getLine());
+            }
+        }
+        for (DataSchemaNodeBuilder addedChild : addedChildNodes) {
+            if (addedChild.getQName().getLocalName().equals(notificationName)) {
+                raiseYangParserException("notification", "node", notificationName, line, addedChild.getLine());
+            }
+        }
+
+        final NotificationBuilder builder = new NotificationBuilder(name, line, qname);
+        builder.setParent(parent);
+        addedNotifications.add(builder);
+
+        return builder;
+    }
+
+    public FeatureBuilder addFeature(final int line, final QName qname) {
+        Builder parent = getActualNode();
+        if (!(parent.equals(this))) {
+            throw new YangParseException(name, line, "feature can be defined only in module or submodule");
+        }
+
+        final FeatureBuilder builder = new FeatureBuilder(name, line, qname);
+        builder.setParent(parent);
+
+        String featureName = qname.getLocalName();
+        for (FeatureBuilder addedFeature : addedFeatures) {
+            if (addedFeature.getQName().getLocalName().equals(featureName)) {
+                raiseYangParserException("", "feature", featureName, line, addedFeature.getLine());
+            }
+        }
+        addedFeatures.add(builder);
+        return builder;
+    }
+
+    public ChoiceBuilder addChoice(final int line, final QName qname) {
+        final ChoiceBuilder builder = new ChoiceBuilder(name, line, qname);
+
+        Builder parent = getActualNode();
+        builder.setParent(parent);
+        addChildToParent(parent, builder, qname.getLocalName());
+
+        return builder;
+    }
+
+    public ChoiceCaseBuilder addCase(final int line, final QName qname) {
+        Builder parent = getActualNode();
+        if (parent == null || parent.equals(this)) {
+            throw new YangParseException(name, line, "'case' parent not found");
+        }
+
+        final ChoiceCaseBuilder builder = new ChoiceCaseBuilder(name, line, qname);
+        builder.setParent(parent);
+
+        if (parent instanceof ChoiceBuilder) {
+            ((ChoiceBuilder) parent).addCase(builder);
+        } else if (parent instanceof AugmentationSchemaBuilder) {
+            ((AugmentationSchemaBuilder) parent).addChildNode(builder);
+        } else {
+            throw new YangParseException(name, line, "Unresolved parent of 'case' " + qname.getLocalName());
+        }
+
+        return builder;
+    }
+
+    public AnyXmlBuilder addAnyXml(final int line, final QName qname, final SchemaPath schemaPath) {
+        final AnyXmlBuilder builder = new AnyXmlBuilder(name, line, qname, schemaPath);
+
+        Builder parent = getActualNode();
+        builder.setParent(parent);
+        addChildToParent(parent, builder, qname.getLocalName());
+
+        return builder;
+    }
+
+    @Override
+    public void addTypedef(TypeDefinitionBuilder typedefBuilder) {
+        String nodeName = typedefBuilder.getQName().getLocalName();
+        for (TypeDefinitionBuilder tdb : addedTypedefs) {
+            if (tdb.getQName().getLocalName().equals(nodeName)) {
+                raiseYangParserException("", "typedef", nodeName, typedefBuilder.getLine(), tdb.getLine());
+            }
+        }
+        addedTypedefs.add(typedefBuilder);
+    }
+
+    public TypeDefinitionBuilderImpl addTypedef(final int line, final QName qname) {
+        final TypeDefinitionBuilderImpl builder = new TypeDefinitionBuilderImpl(name, line, qname);
+
+        Builder parent = getActualNode();
+        builder.setParent(parent);
+
+        String typedefName = qname.getLocalName();
+        if (parent.equals(this)) {
+            for (TypeDefinitionBuilder tdb : addedTypedefs) {
+                if (tdb.getQName().getLocalName().equals(typedefName)) {
+                    raiseYangParserException("", "typedef", typedefName, line, tdb.getLine());
+                }
+            }
+            addedTypedefs.add(builder);
+        } else {
+            if (parent instanceof DataNodeContainerBuilder) {
+                DataNodeContainerBuilder parentNode = (DataNodeContainerBuilder) parent;
+                for (TypeDefinitionBuilder child : parentNode.getTypeDefinitionBuilders()) {
+                    if (child.getQName().getLocalName().equals(typedefName)) {
+                        raiseYangParserException("", "typedef", typedefName, line, child.getLine());
+                    }
+                }
+                parentNode.addTypedef(builder);
+            } else if (parent instanceof RpcDefinitionBuilder) {
+                RpcDefinitionBuilder rpcParent = (RpcDefinitionBuilder) parent;
+                for (TypeDefinitionBuilder tdb : rpcParent.getTypeDefinitions()) {
+                    if (tdb.getQName().getLocalName().equals(builder.getQName().getLocalName())) {
+                        raiseYangParserException("", "typedef", typedefName, line, tdb.getLine());
+                    }
+                }
+                rpcParent.addTypedef(builder);
+            } else {
+                throw new YangParseException(name, line, "Unresolved parent of typedef " + typedefName);
+            }
+        }
+
+        return builder;
+    }
+
+    public void setType(final TypeDefinition<?> type) {
+        Builder parent = getActualNode();
+        if (!(parent instanceof TypeAwareBuilder)) {
+            throw new YangParseException("Failed to set type '" + type.getQName().getLocalName()
+                    + "'. Invalid parent node: " + parent);
+        }
+        ((TypeAwareBuilder) parent).setType(type);
+    }
+
+    public UnionTypeBuilder addUnionType(final int line, final URI namespace, final Date revision) {
+        final Builder parent = getActualNode();
+        if (parent == null) {
+            throw new YangParseException(name, line, "Unresolved parent of union type");
+        } else {
+            final UnionTypeBuilder union = new UnionTypeBuilder(name, line);
+            if (parent instanceof TypeAwareBuilder) {
+                ((TypeAwareBuilder) parent).setTypedef(union);
+                return union;
+            } else {
+                throw new YangParseException(name, line, "Invalid parent of union type.");
+            }
+        }
+    }
+
+    public void addIdentityrefType(final int line, final SchemaPath schemaPath, final String baseString) {
+        final IdentityrefTypeBuilder identityref = new IdentityrefTypeBuilder(name, line, baseString, schemaPath);
+
+        final Builder parent = getActualNode();
+        if (parent == null) {
+            throw new YangParseException(name, line, "Unresolved parent of identityref type.");
+        } else {
+            if (parent instanceof TypeAwareBuilder) {
+                final TypeAwareBuilder typeParent = (TypeAwareBuilder) parent;
+                typeParent.setTypedef(identityref);
+                dirtyNodes.add(typeParent);
+            } else {
+                throw new YangParseException(name, line, "Invalid parent of identityref type.");
+            }
+        }
+    }
+
+    public DeviationBuilder addDeviation(final int line, final String targetPath) {
+        Builder parent = getActualNode();
+        if (!(parent.equals(this))) {
+            throw new YangParseException(name, line, "deviation can be defined only in module or submodule");
+        }
+
+        final DeviationBuilder builder = new DeviationBuilder(name, line, targetPath);
+        builder.setParent(parent);
+        addedDeviations.add(builder);
+        return builder;
+    }
+
+    public IdentitySchemaNodeBuilder addIdentity(final QName qname, final int line) {
+        Builder parent = getActualNode();
+        if (!(parent.equals(this))) {
+            throw new YangParseException(name, line, "identity can be defined only in module or submodule");
+        }
+        String identityName = qname.getLocalName();
+        for (IdentitySchemaNodeBuilder idBuilder : addedIdentities) {
+            if (idBuilder.getQName().equals(qname)) {
+                raiseYangParserException("", "identity", identityName, line, idBuilder.getLine());
+            }
+        }
+
+        final IdentitySchemaNodeBuilder builder = new IdentitySchemaNodeBuilder(name, line, qname);
+        builder.setParent(parent);
+        addedIdentities.add(builder);
+        return builder;
+    }
+
+    @Override
+    public void addUnknownNodeBuilder(final UnknownSchemaNodeBuilder builder) {
+        addedUnknownNodes.add(builder);
+        allUnknownNodes.add(builder);
+    }
+
+    public UnknownSchemaNodeBuilder addUnknownSchemaNode(final int line, final QName qname) {
+        final Builder parent = getActualNode();
+        final UnknownSchemaNodeBuilder builder = new UnknownSchemaNodeBuilder(name, line, qname);
+        builder.setParent(parent);
+        allUnknownNodes.add(builder);
+
+        if (parent.equals(this)) {
+            addedUnknownNodes.add(builder);
+        } else {
+            if (parent instanceof SchemaNodeBuilder) {
+                ((SchemaNodeBuilder) parent).addUnknownNodeBuilder(builder);
+            } else if (parent instanceof DataNodeContainerBuilder) {
+                ((DataNodeContainerBuilder) parent).addUnknownNodeBuilder(builder);
+            } else if (parent instanceof RefineHolder) {
+                ((RefineHolder) parent).addUnknownNodeBuilder(builder);
+            } else {
+                throw new YangParseException(name, line, "Unresolved parent of unknown node '" + qname.getLocalName()
+                        + "'");
+            }
+        }
+
+        return builder;
+    }
+
+    public Set<RpcDefinitionBuilder> getRpcs() {
+        return addedRpcs;
+    }
+
+    public Set<NotificationBuilder> getNotifications() {
+        return addedNotifications;
+    }
+
+    @Override
+    public String toString() {
+        return "module " + name;
+    }
+
+    private final class ModuleImpl implements Module {
+        private URI namespace;
+        private final String name;
+        private Date revision;
+        private String prefix;
+        private String yangVersion;
+        private String description;
+        private String reference;
+        private String organization;
+        private String contact;
+        private Set<ModuleImport> imports = Collections.emptySet();
+        private Set<FeatureDefinition> features = Collections.emptySet();
+        private Set<TypeDefinition<?>> typeDefinitions = Collections.emptySet();
+        private Set<NotificationDefinition> notifications = Collections.emptySet();
+        private Set<AugmentationSchema> augmentations = Collections.emptySet();
+        private Set<RpcDefinition> rpcs = Collections.emptySet();
+        private Set<Deviation> deviations = Collections.emptySet();
+        private Map<QName, DataSchemaNode> childNodes = Collections.emptyMap();
+        private Set<GroupingDefinition> groupings = Collections.emptySet();
+        private Set<UsesNode> uses = Collections.emptySet();
+        private List<ExtensionDefinition> extensionNodes = Collections.emptyList();
+        private Set<IdentitySchemaNode> identities = Collections.emptySet();
+        private List<UnknownSchemaNode> unknownNodes = Collections.emptyList();
+
+        private ModuleImpl(String name) {
+            this.name = name;
+        }
+
+        @Override
+        public URI getNamespace() {
+            return namespace;
+        }
+
+        private void setNamespace(URI namespace) {
+            this.namespace = namespace;
+        }
+
+        @Override
+        public String getName() {
+            return name;
+        }
+
+        @Override
+        public Date getRevision() {
+            return revision;
+        }
+
+        private void setRevision(Date revision) {
+            this.revision = revision;
+        }
+
+        @Override
+        public String getPrefix() {
+            return prefix;
+        }
+
+        private void setPrefix(String prefix) {
+            this.prefix = prefix;
+        }
+
+        @Override
+        public String getYangVersion() {
+            return yangVersion;
+        }
+
+        private void setYangVersion(String yangVersion) {
+            this.yangVersion = yangVersion;
+        }
+
+        @Override
+        public String getDescription() {
+            return description;
+        }
+
+        private void setDescription(String description) {
+            this.description = description;
+        }
+
+        @Override
+        public String getReference() {
+            return reference;
+        }
+
+        private void setReference(String reference) {
+            this.reference = reference;
+        }
+
+        @Override
+        public String getOrganization() {
+            return organization;
+        }
+
+        private void setOrganization(String organization) {
+            this.organization = organization;
+        }
+
+        @Override
+        public String getContact() {
+            return contact;
+        }
+
+        private void setContact(String contact) {
+            this.contact = contact;
+        }
+
+        @Override
+        public Set<ModuleImport> getImports() {
+            return imports;
+        }
+
+        private void setImports(Set<ModuleImport> imports) {
+            if (imports != null) {
+                this.imports = imports;
+            }
+        }
+
+        @Override
+        public Set<FeatureDefinition> getFeatures() {
+            return features;
+        }
+
+        private void setFeatures(Set<FeatureDefinition> features) {
+            if (features != null) {
+                this.features = features;
+            }
+        }
+
+        @Override
+        public Set<TypeDefinition<?>> getTypeDefinitions() {
+            return typeDefinitions;
+        }
+
+        private void setTypeDefinitions(Set<TypeDefinition<?>> typeDefinitions) {
+            if (typeDefinitions != null) {
+                this.typeDefinitions = typeDefinitions;
+            }
+        }
+
+        @Override
+        public Set<NotificationDefinition> getNotifications() {
+            return notifications;
+        }
+
+        private void setNotifications(Set<NotificationDefinition> notifications) {
+            if (notifications != null) {
+                this.notifications = notifications;
+            }
+        }
+
+        @Override
+        public Set<AugmentationSchema> getAugmentations() {
+            return augmentations;
+        }
+
+        private void setAugmentations(Set<AugmentationSchema> augmentations) {
+            if (augmentations != null) {
+                this.augmentations = augmentations;
+            }
+        }
+
+        @Override
+        public Set<RpcDefinition> getRpcs() {
+            return rpcs;
+        }
+
+        private void setRpcs(Set<RpcDefinition> rpcs) {
+            if (rpcs != null) {
+                this.rpcs = rpcs;
+            }
+        }
+
+        @Override
+        public Set<Deviation> getDeviations() {
+            return deviations;
+        }
+
+        private void setDeviations(Set<Deviation> deviations) {
+            if (deviations != null) {
+                this.deviations = deviations;
+            }
+        }
+
+        @Override
+        public Set<DataSchemaNode> getChildNodes() {
+            return new LinkedHashSet<DataSchemaNode>(childNodes.values());
+        }
+
+        private void setChildNodes(Map<QName, DataSchemaNode> childNodes) {
+            if (childNodes != null) {
+                this.childNodes = childNodes;
+            }
+        }
+
+        @Override
+        public Set<GroupingDefinition> getGroupings() {
+            return groupings;
+        }
+
+        private void setGroupings(Set<GroupingDefinition> groupings) {
+            if (groupings != null) {
+                this.groupings = groupings;
+            }
+        }
+
+        @Override
+        public Set<UsesNode> getUses() {
+            return uses;
+        }
+
+        private void setUses(Set<UsesNode> uses) {
+            if (uses != null) {
+                this.uses = uses;
+            }
+        }
+
+        @Override
+        public List<ExtensionDefinition> getExtensionSchemaNodes() {
+            return extensionNodes;
+        }
+
+        private void setExtensionSchemaNodes(final List<ExtensionDefinition> extensionNodes) {
+            if (extensionNodes != null) {
+                this.extensionNodes = extensionNodes;
+            }
+        }
+
+        @Override
+        public Set<IdentitySchemaNode> getIdentities() {
+            return identities;
+        }
+
+        private void setIdentities(final Set<IdentitySchemaNode> identities) {
+            if (identities != null) {
+                this.identities = identities;
+            }
+        }
+
+        @Override
+        public List<UnknownSchemaNode> getUnknownSchemaNodes() {
+            return unknownNodes;
+        }
+
+        private void setUnknownSchemaNodes(final List<UnknownSchemaNode> unknownNodes) {
+            if (unknownNodes != null) {
+                this.unknownNodes = unknownNodes;
+            }
+        }
+
+        @Override
+        public DataSchemaNode getDataChildByName(QName name) {
+            return childNodes.get(name);
+        }
+
+        @Override
+        public DataSchemaNode getDataChildByName(String name) {
+            DataSchemaNode result = null;
+            for (Map.Entry<QName, DataSchemaNode> entry : childNodes.entrySet()) {
+                if (entry.getKey().getLocalName().equals(name)) {
+                    result = entry.getValue();
+                    break;
+                }
+            }
+            return result;
+        }
+
+        @Override
+        public int hashCode() {
+            final int prime = 31;
+            int result = 1;
+            result = prime * result + ((namespace == null) ? 0 : namespace.hashCode());
+            result = prime * result + ((name == null) ? 0 : name.hashCode());
+            result = prime * result + ((revision == null) ? 0 : revision.hashCode());
+            result = prime * result + ((prefix == null) ? 0 : prefix.hashCode());
+            result = prime * result + ((yangVersion == null) ? 0 : yangVersion.hashCode());
+            return result;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (this == obj) {
+                return true;
+            }
+            if (obj == null) {
+                return false;
+            }
+            if (getClass() != obj.getClass()) {
+                return false;
+            }
+            ModuleImpl other = (ModuleImpl) obj;
+            if (namespace == null) {
+                if (other.namespace != null) {
+                    return false;
+                }
+            } else if (!namespace.equals(other.namespace)) {
+                return false;
+            }
+            if (name == null) {
+                if (other.name != null) {
+                    return false;
+                }
+            } else if (!name.equals(other.name)) {
+                return false;
+            }
+            if (revision == null) {
+                if (other.revision != null) {
+                    return false;
+                }
+            } else if (!revision.equals(other.revision)) {
+                return false;
+            }
+            if (prefix == null) {
+                if (other.prefix != null) {
+                    return false;
+                }
+            } else if (!prefix.equals(other.prefix)) {
+                return false;
+            }
+            if (yangVersion == null) {
+                if (other.yangVersion != null) {
+                    return false;
+                }
+            } else if (!yangVersion.equals(other.yangVersion)) {
+                return false;
+            }
+            return true;
+        }
+
+        @Override
+        public String toString() {
+            StringBuilder sb = new StringBuilder(ModuleImpl.class.getSimpleName());
+            sb.append("[");
+            sb.append("name=" + name);
+            sb.append(", namespace=" + namespace);
+            sb.append(", revision=" + revision);
+            sb.append(", prefix=" + prefix);
+            sb.append(", yangVersion=" + yangVersion);
+            sb.append("]");
+            return sb.toString();
+        }
+    }
+
+    /**
+     * Add child to parent. Method checks for duplicates and add given child
+     * node to parent. If node with same name is found, throws exception. If
+     * parent is null, child node will be added directly to module.
+     * 
+     * @param parent
+     * @param child
+     * @param childName
+     */
+    private void addChildToParent(final Builder parent, final DataSchemaNodeBuilder child, final String childName) {
+        final int lineNum = child.getLine();
+        if (parent.equals(this)) {
+            addChildToModule(child, childName, lineNum);
+        } else {
+            addChildToSubnodeOfModule(parent, child, childName, lineNum);
+        }
+    }
+
+    /**
+     * Adds child node <code>child</code> to the set of nodes child nodes.
+     * 
+     * The method reduces the complexity of the method
+     * {@link #addChildToParent(Builder, DataSchemaNodeBuilder, String)
+     * addChildToParent}.
+     * 
+     * @param child
+     *            data schema node builder for child node
+     * @param childName
+     *            string with name of child node
+     * @param lineNum
+     *            line number in YANG file where is the node with the name equal
+     *            to <code>childName</code> is defined
+     */
+    private void addChildToModule(final DataSchemaNodeBuilder child, final String childName, final int lineNum) {
+        // if parent == null => node is defined under module
+        // All leafs, leaf-lists, lists, containers, choices, rpcs,
+        // notifications, and anyxmls defined within a parent node or at the
+        // top level of the module or its submodules share the same
+        // identifier namespace.
+        for (DataSchemaNodeBuilder childNode : addedChildNodes) {
+            if (childNode.getQName().getLocalName().equals(childName)) {
+                raiseYangParserException("'"+child+"'", "node", childName, lineNum, childNode.getLine());
+            }
+        }
+        for (RpcDefinitionBuilder rpc : addedRpcs) {
+            if (rpc.getQName().getLocalName().equals(childName)) {
+                raiseYangParserException("'"+child+"'", "rpc", childName, lineNum, rpc.getLine());
+            }
+        }
+        for (NotificationBuilder notification : addedNotifications) {
+            if (notification.getQName().getLocalName().equals(childName)) {
+                raiseYangParserException("'"+child+"'", "notification", childName, lineNum, notification.getLine());
+            }
+        }
+        addedChildNodes.add(child);
+    }
+
+    /**
+     * Adds child node <code>child</code> to the group of child nodes of the
+     * <code>parent</code>
+     * 
+     * The method reduces the complexity of the method
+     * {@link #addChildToParent(Builder, DataSchemaNodeBuilder, String)
+     * addChildToParent}. *
+     * 
+     * @param parent
+     *            builder of node which is parent for <code>child</code>
+     * @param child
+     *            data schema node builder for child node
+     * @param childName
+     *            string with name of child node
+     * @param lineNum
+     *            line number in YANG file where is the node with the name equal
+     *            to <code>childName</code> is defined
+     */
+    private void addChildToSubnodeOfModule(final Builder parent, final DataSchemaNodeBuilder child,
+            final String childName, final int lineNum) {
+        if (parent instanceof AugmentationSchemaBuilder) {
+            child.setAugmenting(true);
+        }
+        // no need for checking rpc and notification because they can be
+        // defined only under module or submodule
+        if (parent instanceof DataNodeContainerBuilder) {
+            DataNodeContainerBuilder parentNode = (DataNodeContainerBuilder) parent;
+            for (DataSchemaNodeBuilder childNode : parentNode.getChildNodeBuilders()) {
+                if (childNode.getQName().getLocalName().equals(childName)) {
+                    raiseYangParserException("'"+child+"'", "node", childName, lineNum, childNode.getLine());
+                }
+            }
+            parentNode.addChildNode(child);
+        } else if (parent instanceof ChoiceBuilder) {
+            ChoiceBuilder parentNode = (ChoiceBuilder) parent;
+            for (ChoiceCaseBuilder caseBuilder : parentNode.getCases()) {
+                if (caseBuilder.getQName().getLocalName().equals(childName)) {
+                    raiseYangParserException("'"+child+"'", "node", childName, lineNum, caseBuilder.getLine());
+                }
+            }
+            parentNode.addCase(child);
+        } else {
+            throw new YangParseException(name, lineNum, "Unresolved parent of node '" + childName + "'.");
+        }
+    }
+
+    /**
+     * 
+     * Implementation of <code>ModuleImport</code> interface only for the method
+     * {@link ModuleBuilder#createModuleImport(String, Date, String)
+     * createModuleImport}.
+     * 
+     */
+    private class ModuleImportImpl implements ModuleImport {
+        final String moduleName;
+        final Date revision;
+        final String prefix;
+
+        private ModuleImportImpl(final String moduleName, final Date revision, final String prefix) {
+            this.moduleName = moduleName;
+            this.revision = revision;
+            this.prefix = prefix;
+        }
+
+        @Override
+        public String getModuleName() {
+            return moduleName;
+        }
+
+        @Override
+        public Date getRevision() {
+            return revision;
+        }
+
+        @Override
+        public String getPrefix() {
+            return prefix;
+        }
+
+        @Override
+        public int hashCode() {
+            final int prime = 31;
+            int result = 1;
+            result = prime * result + ((moduleName == null) ? 0 : moduleName.hashCode());
+            result = prime * result + ((revision == null) ? 0 : revision.hashCode());
+            result = prime * result + ((prefix == null) ? 0 : prefix.hashCode());
+            return result;
+        }
+
+        @Override
+        public boolean equals(Object obj) {
+            if (this == obj) {
+                return true;
+            }
+            if (obj == null) {
+                return false;
+            }
+            if (getClass() != obj.getClass()) {
+                return false;
+            }
+            ModuleImport other = (ModuleImport) obj;
+            if (getModuleName() == null) {
+                if (other.getModuleName() != null) {
+                    return false;
+                }
+            } else if (!getModuleName().equals(other.getModuleName())) {
+                return false;
+            }
+            if (getRevision() == null) {
+                if (other.getRevision() != null) {
+                    return false;
+                }
+            } else if (!getRevision().equals(other.getRevision())) {
+                return false;
+            }
+            if (getPrefix() == null) {
+                if (other.getPrefix() != null) {
+                    return false;
+                }
+            } else if (!getPrefix().equals(other.getPrefix())) {
+                return false;
+            }
+            return true;
+        }
+
+        @Override
+        public String toString() {
+            return "ModuleImport[moduleName=" + moduleName + ", revision=" + revision + ", prefix=" + prefix + "]";
+        }
+    }
+
+    private ModuleImport createModuleImport(final String moduleName, final Date revision, final String prefix) {
+        final ModuleImport moduleImport = new ModuleImportImpl(moduleName, revision, prefix);
+        return moduleImport;
+    }
+
+    private void raiseYangParserException(final String cantAddType, final String type, final String name,
+            final int currentLine, final int duplicateLine) {
+
+        StringBuilder msgPrefix = new StringBuilder("");
+        if (cantAddType != null && !cantAddType.isEmpty()) {
+            msgPrefix.append("Can not add ");
+            msgPrefix.append(cantAddType);
+            msgPrefix.append(": ");
+        }
+
+        String msg = String.format("%s%s with same name '%s' already declared at line %d.", msgPrefix, type, name,
+                duplicateLine);
+        throw new YangParseException(moduleName, currentLine, msg);
+    }
+}