Refactored SchemaPath for yang java types. Fixed SchemaPath for augmented nodes types.
[controller.git] / opendaylight / sal / yang-prototype / code-generator / yang-model-parser-impl / src / main / java / org / opendaylight / controller / yang / parser / util / ParserUtils.java
index 757c02c8a03280788964f118a6238a8086d17b0a..b4e250d19f9e2df482e4421f5943a29e73e350d9 100644 (file)
@@ -7,6 +7,8 @@
  */
 package org.opendaylight.controller.yang.parser.util;
 
+import java.lang.reflect.Method;
+import java.math.BigDecimal;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -15,10 +17,45 @@ import org.opendaylight.controller.yang.model.api.ModuleImport;
 import org.opendaylight.controller.yang.model.api.MustDefinition;
 import org.opendaylight.controller.yang.model.api.SchemaPath;
 import org.opendaylight.controller.yang.model.api.TypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.BinaryTypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.BitsTypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.BooleanTypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.DecimalTypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.EmptyTypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.EnumTypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.EnumTypeDefinition.EnumPair;
+import org.opendaylight.controller.yang.model.api.type.IdentityrefTypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.InstanceIdentifierTypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.IntegerTypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.LeafrefTypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.LengthConstraint;
+import org.opendaylight.controller.yang.model.api.type.PatternConstraint;
+import org.opendaylight.controller.yang.model.api.type.RangeConstraint;
+import org.opendaylight.controller.yang.model.api.type.StringTypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.UnionTypeDefinition;
+import org.opendaylight.controller.yang.model.api.type.UnsignedIntegerTypeDefinition;
+import org.opendaylight.controller.yang.model.util.BinaryType;
+import org.opendaylight.controller.yang.model.util.BitsType;
+import org.opendaylight.controller.yang.model.util.BooleanType;
+import org.opendaylight.controller.yang.model.util.Decimal64;
+import org.opendaylight.controller.yang.model.util.EmptyType;
+import org.opendaylight.controller.yang.model.util.EnumerationType;
+import org.opendaylight.controller.yang.model.util.IdentityrefType;
+import org.opendaylight.controller.yang.model.util.InstanceIdentifier;
+import org.opendaylight.controller.yang.model.util.Int16;
+import org.opendaylight.controller.yang.model.util.Int32;
+import org.opendaylight.controller.yang.model.util.Int64;
+import org.opendaylight.controller.yang.model.util.Int8;
+import org.opendaylight.controller.yang.model.util.Leafref;
+import org.opendaylight.controller.yang.model.util.StringType;
+import org.opendaylight.controller.yang.model.util.UnionType;
 import org.opendaylight.controller.yang.parser.builder.api.AugmentationSchemaBuilder;
+import org.opendaylight.controller.yang.parser.builder.api.Builder;
 import org.opendaylight.controller.yang.parser.builder.api.ChildNodeBuilder;
 import org.opendaylight.controller.yang.parser.builder.api.DataSchemaNodeBuilder;
 import org.opendaylight.controller.yang.parser.builder.api.GroupingBuilder;
+import org.opendaylight.controller.yang.parser.builder.api.SchemaNodeBuilder;
+import org.opendaylight.controller.yang.parser.builder.api.TypeAwareBuilder;
 import org.opendaylight.controller.yang.parser.builder.api.TypeDefinitionBuilder;
 import org.opendaylight.controller.yang.parser.builder.api.UsesNodeBuilder;
 import org.opendaylight.controller.yang.parser.builder.impl.AnyXmlBuilder;
@@ -26,11 +63,14 @@ import org.opendaylight.controller.yang.parser.builder.impl.ChoiceBuilder;
 import org.opendaylight.controller.yang.parser.builder.impl.ChoiceCaseBuilder;
 import org.opendaylight.controller.yang.parser.builder.impl.ConstraintsBuilder;
 import org.opendaylight.controller.yang.parser.builder.impl.ContainerSchemaNodeBuilder;
+import org.opendaylight.controller.yang.parser.builder.impl.GroupingBuilderImpl;
 import org.opendaylight.controller.yang.parser.builder.impl.LeafListSchemaNodeBuilder;
 import org.opendaylight.controller.yang.parser.builder.impl.LeafSchemaNodeBuilder;
 import org.opendaylight.controller.yang.parser.builder.impl.ListSchemaNodeBuilder;
 import org.opendaylight.controller.yang.parser.builder.impl.ModuleBuilder;
+import org.opendaylight.controller.yang.parser.builder.impl.TypedefBuilder;
 import org.opendaylight.controller.yang.parser.builder.impl.UnknownSchemaNodeBuilder;
+import org.opendaylight.controller.yang.parser.builder.impl.UsesNodeBuilderImpl;
 
 public final class ParserUtils {
 
@@ -96,24 +136,349 @@ public final class ParserUtils {
             final ChildNodeBuilder target) {
         for (DataSchemaNodeBuilder builder : augment.getChildNodes()) {
             builder.setAugmenting(true);
-            correctPath(augment, target.getPath());
+            correctAugmentChildPath(augment, target.getPath());
             target.addChildNode(builder);
         }
     }
 
-    private static void correctPath(final ChildNodeBuilder node,
+    private static void correctAugmentChildPath(final ChildNodeBuilder node,
             final SchemaPath parentSchemaPath) {
-        for(DataSchemaNodeBuilder builder : node.getChildNodes()) {
+        for (DataSchemaNodeBuilder builder : node.getChildNodes()) {
 
             // add correct path
-            SchemaPath targetNodeSchemaPath = parentSchemaPath;
-            List<QName> targetNodePath = new ArrayList<QName>(targetNodeSchemaPath.getPath());
+            List<QName> targetNodePath = new ArrayList<QName>(
+                    parentSchemaPath.getPath());
             targetNodePath.add(builder.getQName());
             builder.setPath(new SchemaPath(targetNodePath, true));
 
-            if(builder instanceof ChildNodeBuilder) {
-                ChildNodeBuilder cnb = (ChildNodeBuilder)builder;
-                correctPath(cnb, builder.getPath());
+            if (builder instanceof ChildNodeBuilder) {
+                ChildNodeBuilder cnb = (ChildNodeBuilder) builder;
+                correctAugmentChildPath(cnb, builder.getPath());
+            }
+
+            // if child can contains type, correct path for this type too
+            if(builder instanceof TypeAwareBuilder) {
+                TypeAwareBuilder nodeBuilder = (TypeAwareBuilder)builder;
+                QName nodeBuilderQName = nodeBuilder.getQName();
+                TypeDefinition<?> nodeBuilderType = nodeBuilder.getType();
+                if(nodeBuilderType != null) {
+                    TypeDefinition<?> newType = createCorrectTypeDefinition(parentSchemaPath, nodeBuilderQName, nodeBuilderType);
+                    nodeBuilder.setType(newType);
+                } else {
+                    TypeDefinitionBuilder nodeBuilderTypedef = nodeBuilder.getTypedef();
+                    SchemaPath newSchemaPath = createNewSchemaPath(nodeBuilderTypedef.getPath(), nodeBuilderQName, nodeBuilderTypedef.getQName());
+                    nodeBuilderTypedef.setPath(newSchemaPath);
+                }
+            }
+        }
+    }
+
+    private static TypeDefinition<?> createCorrectTypeDefinition(SchemaPath parentSchemaPath, QName nodeQName, TypeDefinition<?> nodeType) {
+        TypeDefinition<?> result = null;
+        SchemaPath newSchemaPath = null;
+        if(nodeType != null) {
+            if(nodeType instanceof BinaryTypeDefinition) {
+                BinaryTypeDefinition binType = (BinaryTypeDefinition)nodeType;
+                newSchemaPath = createNewSchemaPath(parentSchemaPath, nodeQName, binType.getQName());
+                List<Byte> bytes = (List<Byte>)binType.getDefaultValue();
+                result = new BinaryType(newSchemaPath, bytes, binType.getLengthConstraints(), binType.getUnits());
+            } else if(nodeType instanceof BitsTypeDefinition) {
+                BitsTypeDefinition bitsType = (BitsTypeDefinition)nodeType;
+                newSchemaPath = createNewSchemaPath(parentSchemaPath, nodeQName, nodeType.getQName());
+                result = new BitsType(newSchemaPath, bitsType.getBits(), bitsType.getUnits());
+            } else if(nodeType instanceof BooleanTypeDefinition) {
+                BooleanTypeDefinition booleanType = (BooleanTypeDefinition)nodeType;
+                newSchemaPath = createNewSchemaPath(parentSchemaPath, nodeQName, booleanType.getQName());
+                result = new BooleanType(newSchemaPath, (Boolean)booleanType.getDefaultValue(), booleanType.getUnits());
+            } else if(nodeType instanceof DecimalTypeDefinition) {
+                DecimalTypeDefinition decimalType = (DecimalTypeDefinition)nodeType;
+                newSchemaPath = createNewSchemaPath(parentSchemaPath, nodeQName, decimalType.getQName());
+                BigDecimal defaultValue = (BigDecimal)decimalType.getDefaultValue();
+                result = new Decimal64(newSchemaPath, decimalType.getUnits(), defaultValue, decimalType.getRangeStatements(), decimalType.getFractionDigits());
+            } else if(nodeType instanceof EmptyTypeDefinition) {
+                newSchemaPath = createNewSchemaPath(parentSchemaPath, nodeQName, nodeType.getQName());
+                result = new EmptyType(newSchemaPath);
+            } else if(nodeType instanceof EnumTypeDefinition) {
+                EnumTypeDefinition enumType = (EnumTypeDefinition)nodeType;
+                newSchemaPath = createNewSchemaPath(parentSchemaPath, nodeQName, enumType.getQName());
+                result = new EnumerationType(newSchemaPath, (EnumPair)enumType.getDefaultValue(), enumType.getValues(), enumType.getUnits());
+            } else if(nodeType instanceof IdentityrefTypeDefinition) {
+                IdentityrefTypeDefinition idrefType = (IdentityrefTypeDefinition)nodeType;
+                newSchemaPath = createNewSchemaPath(parentSchemaPath, nodeQName, idrefType.getQName());
+                result = new IdentityrefType(idrefType.getIdentity(), newSchemaPath);
+            } else if(nodeType instanceof InstanceIdentifierTypeDefinition) {
+                InstanceIdentifierTypeDefinition instIdType = (InstanceIdentifierTypeDefinition)nodeType;
+                newSchemaPath = createNewSchemaPath(parentSchemaPath, nodeQName, instIdType.getQName());
+                return new InstanceIdentifier(newSchemaPath, instIdType.getPathStatement(), instIdType.requireInstance());
+            } else if(nodeType instanceof StringTypeDefinition) {
+                result = copyStringType(parentSchemaPath, nodeQName, (StringTypeDefinition)nodeType);
+            } else if(nodeType instanceof IntegerTypeDefinition) {
+                result = copyIntType(parentSchemaPath, nodeQName, (IntegerTypeDefinition)nodeType);
+            } else if(nodeType instanceof UnsignedIntegerTypeDefinition) {
+                result = copyUIntType(parentSchemaPath, nodeQName, (UnsignedIntegerTypeDefinition)nodeType);
+            } else if(nodeType instanceof LeafrefTypeDefinition) {
+                newSchemaPath = createNewSchemaPath(parentSchemaPath, nodeQName, nodeType.getQName());
+                result = new Leafref(newSchemaPath, ((LeafrefTypeDefinition)nodeType).getPathStatement());
+            } else if(nodeType instanceof UnionTypeDefinition) {
+                UnionTypeDefinition unionType = (UnionTypeDefinition)nodeType;
+                newSchemaPath = createNewSchemaPath(parentSchemaPath, nodeQName, unionType.getQName());
+                return new UnionType(newSchemaPath, unionType.getTypes());
+            }
+        }
+        return result;
+    }
+
+    private static TypeDefinition<?> copyStringType(SchemaPath schemaPath, QName nodeQName, StringTypeDefinition nodeType) {
+        List<QName> path = schemaPath.getPath();
+        List<QName> newPath = new ArrayList<QName>(path);
+        newPath.add(nodeQName);
+        newPath.add(nodeType.getQName());
+        SchemaPath newSchemaPath = new SchemaPath(newPath, schemaPath.isAbsolute());
+
+        String newDefault = nodeType.getDefaultValue().toString();
+        String newUnits = nodeType.getUnits();
+        List<LengthConstraint> lengths = nodeType.getLengthStatements();
+        List<PatternConstraint> patterns = nodeType.getPatterns();
+
+        return new StringType(newSchemaPath, newDefault, lengths, patterns, newUnits);
+    }
+
+    private static TypeDefinition<?> copyIntType(SchemaPath schemaPath, QName nodeQName, IntegerTypeDefinition type) {
+        QName typeQName = type.getQName();
+        SchemaPath newSchemaPath = createNewSchemaPath(schemaPath, nodeQName, typeQName);
+
+        String localName = typeQName.getLocalName();
+        List<RangeConstraint> ranges = type.getRangeStatements();
+        String units = type.getUnits();
+
+        if("int8".equals(localName)) {
+            Byte defaultValue = (Byte)type.getDefaultValue();
+            return new Int8(newSchemaPath, ranges, units, defaultValue);
+        } else if("int16".equals(localName)) {
+            Short defaultValue = (Short)type.getDefaultValue();
+            return new Int16(newSchemaPath, ranges, units, defaultValue);
+        } else if("int32".equals(localName)) {
+            Integer defaultValue = (Integer)type.getDefaultValue();
+            return new Int32(newSchemaPath, ranges, units, defaultValue);
+        } else if("int64".equals(localName)) {
+            Long defaultValue = (Long)type.getDefaultValue();
+            return new Int64(newSchemaPath, ranges, units, defaultValue);
+        } else {
+            return null;
+        }
+    }
+
+    private static TypeDefinition<?> copyUIntType(SchemaPath schemaPath, QName nodeQName, UnsignedIntegerTypeDefinition type) {
+        QName typeQName = type.getQName();
+        SchemaPath newSchemaPath = createNewSchemaPath(schemaPath, nodeQName, typeQName);
+
+        String localName = typeQName.getLocalName();
+        List<RangeConstraint> ranges = type.getRangeStatements();
+        String units = type.getUnits();
+
+        if("uint8".equals(localName)) {
+            Byte defaultValue = (Byte)type.getDefaultValue();
+            return new Int8(newSchemaPath, ranges, units, defaultValue);
+        } else if("uint16".equals(localName)) {
+            Short defaultValue = (Short)type.getDefaultValue();
+            return new Int16(newSchemaPath, ranges, units, defaultValue);
+        } else if("uint32".equals(localName)) {
+            Integer defaultValue = (Integer)type.getDefaultValue();
+            return new Int32(newSchemaPath, ranges, units, defaultValue);
+        } else if("uint64".equals(localName)) {
+            Long defaultValue = (Long)type.getDefaultValue();
+            return new Int64(newSchemaPath, ranges, units, defaultValue);
+        } else {
+            return null;
+        }
+    }
+
+    private static SchemaPath createNewSchemaPath(SchemaPath schemaPath, QName currentQName, QName qname) {
+        List<QName> newPath = new ArrayList<QName>(schemaPath.getPath());
+        newPath.add(currentQName);
+        newPath.add(qname);
+        return new SchemaPath(newPath, schemaPath.isAbsolute());
+    }
+
+    public static void refineLeaf(LeafSchemaNodeBuilder leaf,
+            RefineHolder refine, int line) {
+        String defaultStr = refine.getDefaultStr();
+        Boolean mandatory = refine.isMandatory();
+        MustDefinition must = refine.getMust();
+        List<UnknownSchemaNodeBuilder> unknownNodes = refine.getUnknownNodes();
+
+        if (defaultStr != null && !("".equals(defaultStr))) {
+            leaf.setDefaultStr(defaultStr);
+        }
+        if (mandatory != null) {
+            leaf.getConstraints().setMandatory(mandatory);
+        }
+        if (must != null) {
+            leaf.getConstraints().addMustDefinition(must);
+        }
+        if (unknownNodes != null) {
+            for (UnknownSchemaNodeBuilder unknown : unknownNodes) {
+                leaf.addUnknownSchemaNode(unknown);
+            }
+        }
+    }
+
+    public static void refineContainer(ContainerSchemaNodeBuilder container,
+            RefineHolder refine, int line) {
+        Boolean presence = refine.isPresence();
+        MustDefinition must = refine.getMust();
+        List<UnknownSchemaNodeBuilder> unknownNodes = refine.getUnknownNodes();
+
+        if (presence != null) {
+            container.setPresence(presence);
+        }
+        if (must != null) {
+            container.getConstraints().addMustDefinition(must);
+        }
+        if (unknownNodes != null) {
+            for (UnknownSchemaNodeBuilder unknown : unknownNodes) {
+                container.addUnknownSchemaNode(unknown);
+            }
+        }
+    }
+
+    public static void refineList(ListSchemaNodeBuilder list,
+            RefineHolder refine, int line) {
+        MustDefinition must = refine.getMust();
+        Integer min = refine.getMinElements();
+        Integer max = refine.getMaxElements();
+        List<UnknownSchemaNodeBuilder> unknownNodes = refine.getUnknownNodes();
+
+        if (must != null) {
+            list.getConstraints().addMustDefinition(must);
+        }
+        if (min != null) {
+            list.getConstraints().setMinElements(min);
+        }
+        if (max != null) {
+            list.getConstraints().setMaxElements(max);
+        }
+        if (unknownNodes != null) {
+            for (UnknownSchemaNodeBuilder unknown : unknownNodes) {
+                list.addUnknownSchemaNode(unknown);
+            }
+        }
+    }
+
+    public static void refineLeafList(LeafListSchemaNodeBuilder leafList,
+            RefineHolder refine, int line) {
+        MustDefinition must = refine.getMust();
+        Integer min = refine.getMinElements();
+        Integer max = refine.getMaxElements();
+        List<UnknownSchemaNodeBuilder> unknownNodes = refine.getUnknownNodes();
+
+        if (must != null) {
+            leafList.getConstraints().addMustDefinition(must);
+        }
+        if (min != null) {
+            leafList.getConstraints().setMinElements(min);
+        }
+        if (max != null) {
+            leafList.getConstraints().setMaxElements(max);
+        }
+        if (unknownNodes != null) {
+            for (UnknownSchemaNodeBuilder unknown : unknownNodes) {
+                leafList.addUnknownSchemaNode(unknown);
+            }
+        }
+    }
+
+    public static void refineChoice(ChoiceBuilder choice, RefineHolder refine,
+            int line) {
+        String defaultStr = refine.getDefaultStr();
+        Boolean mandatory = refine.isMandatory();
+        List<UnknownSchemaNodeBuilder> unknownNodes = refine.getUnknownNodes();
+
+        if (defaultStr != null) {
+            choice.setDefaultCase(defaultStr);
+        }
+        if (mandatory != null) {
+            choice.getConstraints().setMandatory(mandatory);
+        }
+        if (unknownNodes != null) {
+            for (UnknownSchemaNodeBuilder unknown : unknownNodes) {
+                choice.addUnknownSchemaNode(unknown);
+            }
+        }
+    }
+
+    public static void refineAnyxml(AnyXmlBuilder anyXml, RefineHolder refine,
+            int line) {
+        Boolean mandatory = refine.isMandatory();
+        MustDefinition must = refine.getMust();
+        List<UnknownSchemaNodeBuilder> unknownNodes = refine.getUnknownNodes();
+
+        if (mandatory != null) {
+            anyXml.getConstraints().setMandatory(mandatory);
+        }
+        if (must != null) {
+            anyXml.getConstraints().addMustDefinition(must);
+        }
+        if (unknownNodes != null) {
+            for (UnknownSchemaNodeBuilder unknown : unknownNodes) {
+                anyXml.addUnknownSchemaNode(unknown);
+            }
+        }
+    }
+
+    /**
+     * Perform refine operation of following parameters:
+     * <ul>
+     * <li>description</li>
+     * <li>reference</li>
+     * <li>config</li>
+     * </ul>
+     *
+     * These parameters may be refined for any node.
+     *
+     * @param node
+     *            node to refine
+     * @param refine
+     *            refine holder containing values to refine
+     * @param line
+     *            current line in yang model
+     */
+    public static void refineDefault(Builder node, RefineHolder refine, int line) {
+        Class<? extends Builder> cls = node.getClass();
+
+        String description = refine.getDescription();
+        if (description != null) {
+            try {
+                Method method = cls.getDeclaredMethod("setDescription",
+                        String.class);
+                method.invoke(node, description);
+            } catch (Exception e) {
+                throw new YangParseException(line,
+                        "Cannot refine description in " + cls.getName(), e);
+            }
+        }
+
+        String reference = refine.getReference();
+        if (reference != null) {
+            try {
+                Method method = cls.getDeclaredMethod("setReference",
+                        String.class);
+                method.invoke(node, reference);
+            } catch (Exception e) {
+                throw new YangParseException(line,
+                        "Cannot refine reference in " + cls.getName(), e);
+            }
+        }
+
+        Boolean config = refine.isConfig();
+        if (config != null) {
+            try {
+                Method method = cls.getDeclaredMethod("setConfiguration",
+                        Boolean.TYPE);
+                method.invoke(node, config);
+            } catch (Exception e) {
+                throw new YangParseException(line, "Cannot refine config in "
+                        + cls.getName(), e);
             }
         }
     }
@@ -168,9 +533,6 @@ public final class ParserUtils {
         for (UsesNodeBuilder use : old.getUsesNodes()) {
             copy.addUsesNode(use);
         }
-        for (UnknownSchemaNodeBuilder unknown : old.getUnknownNodes()) {
-            copy.addUnknownSchemaNode(unknown);
-        }
         copy.setDescription(old.getDescription());
         copy.setReference(old.getReference());
         copy.setStatus(old.getStatus());
@@ -204,9 +566,6 @@ public final class ParserUtils {
         for (UsesNodeBuilder use : old.getUsesNodes()) {
             copy.addUsesNode(use);
         }
-        for (UnknownSchemaNodeBuilder unknown : old.getUnknownNodes()) {
-            copy.addUnknownSchemaNode(unknown);
-        }
         copy.setDescription(old.getDescription());
         copy.setReference(old.getReference());
         copy.setStatus(old.getStatus());
@@ -231,9 +590,6 @@ public final class ParserUtils {
         for (UnknownSchemaNodeBuilder unknown : old.getUnknownNodes()) {
             copy.addUnknownSchemaNode(unknown);
         }
-        for (UnknownSchemaNodeBuilder unknown : old.getUnknownNodes()) {
-            copy.addUnknownSchemaNode(unknown);
-        }
         copy.setDescription(old.getDescription());
         copy.setReference(old.getReference());
         copy.setStatus(old.getStatus());
@@ -244,7 +600,8 @@ public final class ParserUtils {
     }
 
     public static ChoiceBuilder copyChoiceBuilder(final ChoiceBuilder old) {
-        final ChoiceBuilder copy = new ChoiceBuilder(old.getQName(), old.getLine());
+        final ChoiceBuilder copy = new ChoiceBuilder(old.getQName(),
+                old.getLine());
         copy.setPath(old.getPath());
         copyConstraints(old, copy);
         for (ChoiceCaseBuilder caseBuilder : old.getCases()) {
@@ -259,9 +616,6 @@ public final class ParserUtils {
         for (UsesNodeBuilder use : old.getUsesNodes()) {
             copy.addUsesNode(use);
         }
-        for (UnknownSchemaNodeBuilder unknown : old.getUnknownNodes()) {
-            copy.addUnknownSchemaNode(unknown);
-        }
         copy.setDefaultCase(old.getDefaultCase());
         copy.setDescription(old.getDescription());
         copy.setReference(old.getReference());
@@ -272,7 +626,8 @@ public final class ParserUtils {
     }
 
     public static AnyXmlBuilder copyAnyXmlBuilder(final AnyXmlBuilder old) {
-        final AnyXmlBuilder copy = new AnyXmlBuilder(old.getQName(), old.getLine());
+        final AnyXmlBuilder copy = new AnyXmlBuilder(old.getQName(),
+                old.getLine());
         copy.setPath(old.getPath());
         copyConstraints(old, copy);
         for (UnknownSchemaNodeBuilder unknown : old.getUnknownNodes()) {
@@ -285,6 +640,72 @@ public final class ParserUtils {
         return copy;
     }
 
+    public static GroupingBuilder copyGroupingBuilder(final GroupingBuilder old) {
+        final GroupingBuilder copy = new GroupingBuilderImpl(old.getQName(),
+                old.getLine());
+        copy.setPath(old.getPath());
+        for (DataSchemaNodeBuilder child : old.getChildNodes()) {
+            copy.addChildNode(child);
+        }
+        for (GroupingBuilder grouping : old.getGroupings()) {
+            copy.addGrouping(grouping);
+        }
+        for (TypeDefinitionBuilder typedef : old.getTypedefs()) {
+            copy.addTypedef(typedef);
+        }
+        for (UsesNodeBuilder use : old.getUses()) {
+            copy.addUsesNode(use);
+        }
+        for (UnknownSchemaNodeBuilder unknown : old.getUnknownNodes()) {
+            copy.addUnknownSchemaNode(unknown);
+        }
+        copy.setDescription(old.getDescription());
+        copy.setReference(old.getReference());
+        copy.setStatus(old.getStatus());
+        return copy;
+    }
+
+    public static TypedefBuilder copyTypedefBuilder(TypedefBuilder old) {
+        final TypedefBuilder copy = new TypedefBuilder(old.getQName(),
+                old.getLine());
+        copy.setPath(old.getPath());
+        copy.setDefaultValue(old.getDefaultValue());
+        copy.setUnits(old.getUnits());
+        copy.setDescription(old.getDescription());
+        copy.setReference(old.getReference());
+        copy.setStatus(old.getStatus());
+
+        copy.setRanges(old.getRanges());
+        copy.setLengths(old.getLengths());
+        copy.setPatterns(old.getPatterns());
+        copy.setFractionDigits(old.getFractionDigits());
+
+        TypeDefinition<?> type = old.getType();
+        if(type == null) {
+            copy.setType(old.getTypedef());
+        } else {
+            copy.setType(old.getType());
+        }
+        copy.setUnits(old.getUnits());
+        for (UnknownSchemaNodeBuilder unknown : old.getUnknownNodes()) {
+            copy.addUnknownSchemaNode(unknown);
+        }
+        return copy;
+    }
+
+    public static UsesNodeBuilder copyUsesNodeBuilder(UsesNodeBuilder old) {
+        final UsesNodeBuilder copy = new UsesNodeBuilderImpl(
+                old.getGroupingPathString(), old.getLine());
+        for (AugmentationSchemaBuilder augment : old.getAugmentations()) {
+            copy.addAugment(augment);
+        }
+        copy.setAugmenting(old.isAugmenting());
+        for (SchemaNodeBuilder refineNode : old.getRefineNodes()) {
+            copy.addRefineNode(refineNode);
+        }
+        return copy;
+    }
+
     private static void copyConstraints(final DataSchemaNodeBuilder oldBuilder,
             final DataSchemaNodeBuilder newBuilder) {
         final ConstraintsBuilder oldConstraints = oldBuilder.getConstraints();