2 * Copyright (c) 2014 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.controller.sal.dom.broker.util;
10 import static com.google.common.base.Preconditions.checkArgument;
11 import static com.google.common.base.Preconditions.checkState;
13 import com.google.common.base.Function;
14 import com.google.common.collect.FluentIterable;
16 import java.util.Iterator;
17 import java.util.List;
20 import org.opendaylight.yangtools.yang.common.QName;
21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
22 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
23 import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
24 import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
25 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
26 import org.opendaylight.yangtools.yang.model.api.ConstraintDefinition;
27 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
28 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
29 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
30 import org.opendaylight.yangtools.yang.model.api.GroupingDefinition;
31 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
32 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
33 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
34 import org.opendaylight.yangtools.yang.model.api.SchemaPath;
35 import org.opendaylight.yangtools.yang.model.api.Status;
36 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
37 import org.opendaylight.yangtools.yang.model.api.UnknownSchemaNode;
38 import org.opendaylight.yangtools.yang.model.api.UsesNode;
40 public final class YangSchemaUtils {
42 private static final Function<PathArgument, QName> QNAME_FROM_PATH_ARGUMENT = input -> {
46 return input.getNodeType();
49 private YangSchemaUtils() {
50 throw new UnsupportedOperationException("Utility class.");
53 public static DataSchemaNode getSchemaNode(final SchemaContext schema,final YangInstanceIdentifier path) {
54 checkArgument(schema != null,"YANG Schema must not be null.");
55 checkArgument(path != null,"Path must not be null.");
56 return getSchemaNode(schema, FluentIterable.from(path.getPathArguments()).transform(QNAME_FROM_PATH_ARGUMENT));
59 public static DataSchemaNode getSchemaNode(final SchemaContext schema,final Iterable<QName> path) {
60 checkArgument(schema != null,"YANG Schema must not be null.");
61 checkArgument(path != null,"Path must not be null.");
62 if(!path.iterator().hasNext()){
63 return toRootDataNode(schema);
66 QName firstNode = path.iterator().next();
67 DataNodeContainer previous = schema.findModuleByNamespaceAndRevision(firstNode.getNamespace(),
68 firstNode.getRevision());
69 Iterator<QName> iterator = path.iterator();
71 while (iterator.hasNext()) {
72 checkArgument(previous!= null, "Supplied path does not resolve into valid schema node.");
73 QName arg = iterator.next();
74 DataSchemaNode currentNode = previous.getDataChildByName(arg);
75 if (currentNode == null && previous instanceof DataNodeContainer) {
76 currentNode = searchInChoices(previous, arg);
78 if (currentNode instanceof DataNodeContainer) {
79 previous = (DataNodeContainer) currentNode;
80 } else if (currentNode instanceof LeafSchemaNode || currentNode instanceof LeafListSchemaNode) {
81 checkArgument(!iterator.hasNext(), "Path nests inside leaf node, which is not allowed.");
84 checkState(currentNode != null, "Current node should not be null for %s",path);
86 checkState(previous instanceof DataSchemaNode, "Schema node for %s should be instance of DataSchemaNode. Found %s",path,previous);
87 return (DataSchemaNode) previous;
90 private static DataSchemaNode searchInChoices(final DataNodeContainer node, final QName arg) {
91 for (DataSchemaNode child : node.getChildNodes()) {
92 if (child instanceof ChoiceSchemaNode) {
93 ChoiceSchemaNode choiceNode = (ChoiceSchemaNode) child;
94 DataSchemaNode potential = searchInCases(choiceNode, arg);
95 if (potential != null) {
103 private static DataSchemaNode searchInCases(final ChoiceSchemaNode choiceNode, final QName arg) {
104 Set<ChoiceCaseNode> cases = choiceNode.getCases();
105 for (ChoiceCaseNode caseNode : cases) {
106 DataSchemaNode node = caseNode.getDataChildByName(arg);
114 private static ContainerSchemaNode toRootDataNode(final SchemaContext schema) {
115 return new NetconfDataRootNode(schema);
118 private static final class NetconfDataRootNode implements ContainerSchemaNode {
120 public NetconfDataRootNode(final SchemaContext schema) {
121 // TODO Auto-generated constructor stub
125 public Set<TypeDefinition<?>> getTypeDefinitions() {
126 // TODO Auto-generated method stub
131 public Set<DataSchemaNode> getChildNodes() {
132 // TODO Auto-generated method stub
137 public Set<GroupingDefinition> getGroupings() {
138 // TODO Auto-generated method stub
143 public DataSchemaNode getDataChildByName(final QName name) {
144 // TODO Auto-generated method stub
149 public Set<UsesNode> getUses() {
150 // TODO Auto-generated method stub
155 public Set<AugmentationSchema> getAvailableAugmentations() {
156 // TODO Auto-generated method stub
161 public boolean isAugmenting() {
162 // TODO Auto-generated method stub
167 public boolean isAddedByUses() {
168 // TODO Auto-generated method stub
173 public boolean isConfiguration() {
174 // TODO Auto-generated method stub
179 public ConstraintDefinition getConstraints() {
180 // TODO Auto-generated method stub
185 public QName getQName() {
186 // TODO Auto-generated method stub
191 public SchemaPath getPath() {
192 // TODO Auto-generated method stub
197 public String getDescription() {
198 // TODO Auto-generated method stub
203 public String getReference() {
204 // TODO Auto-generated method stub
209 public Status getStatus() {
210 // TODO Auto-generated method stub
215 public List<UnknownSchemaNode> getUnknownSchemaNodes() {
216 // TODO Auto-generated method stub
221 public boolean isPresenceContainer() {
222 // TODO Auto-generated method stub