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.yangtools.yang.data.impl.schema;
10 import java.io.IOException;
11 import org.eclipse.jdt.annotation.NonNull;
12 import org.opendaylight.yangtools.yang.common.QName;
13 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
14 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
15 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
17 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
18 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
19 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
20 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
21 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
22 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode.BuilderFactory;
23 import org.opendaylight.yangtools.yang.data.api.schema.SystemMapNode;
24 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
25 import org.opendaylight.yangtools.yang.data.api.schema.UserMapNode;
26 import org.opendaylight.yangtools.yang.data.api.schema.stream.YangInstanceIdentifierWriter;
27 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafNodeBuilder;
28 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
29 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
31 public final class ImmutableNodes {
32 private static final @NonNull ImmutableBuilderFactory BUILDER_FACTORY = new ImmutableBuilderFactory();
33 // FIXME: YANGTOOLS-1074: we do not want this name
34 private static final NodeIdentifier SCHEMACONTEXT_NAME = NodeIdentifier.create(SchemaContext.NAME);
36 private ImmutableNodes() {
40 public static @NonNull BuilderFactory builderFactory() {
41 return BUILDER_FACTORY;
44 public static SystemMapNode.@NonNull Builder mapNodeBuilder() {
45 return BUILDER_FACTORY.newSystemMapBuilder();
48 public static SystemMapNode.@NonNull Builder mapNodeBuilder(final QName name) {
49 return mapNodeBuilder(NodeIdentifier.create(name));
52 public static SystemMapNode.@NonNull Builder mapNodeBuilder(final NodeIdentifier name) {
53 final var ret = mapNodeBuilder();
54 // FIXME: use fluent once we have specialized enough
55 ret.withNodeIdentifier(name);
60 * Create an immutable map node.
62 * @param name QName which will be used as node identifier
63 * @return An unordered Map node
65 public static @NonNull SystemMapNode mapNode(final QName name) {
66 return mapNode(NodeIdentifier.create(name));
70 * Create an immutable map node.
72 * @param name QName which will be used as node identifier
73 * @return An unordered Map node
75 public static @NonNull SystemMapNode mapNode(final NodeIdentifier name) {
76 return mapNodeBuilder(name).build();
80 * Create immutable ordered map node.
82 * @param name QName which will be used as node identifier
83 * @return An ordered Map node
85 public static @NonNull UserMapNode orderedMapNode(final QName name) {
86 return orderedMapNode(NodeIdentifier.create(name));
90 * Create immutable ordered map node.
92 * @param name Node identifier
93 * @return An ordered Map node
95 public static @NonNull UserMapNode orderedMapNode(final NodeIdentifier name) {
96 return BUILDER_FACTORY.newUserMapBuilder().withNodeIdentifier(name).build();
100 * Construct immutable leaf node.
102 * @param name Identifier of leaf node
103 * @param value Value of leaf node
104 * @param <T> Type of leaf node value
105 * @return Leaf node with supplied identifier and value
107 public static <T> @NonNull LeafNode<T> leafNode(final NodeIdentifier name, final T value) {
108 return ImmutableLeafNodeBuilder.createNode(name, value);
112 * Construct immutable leaf node.
114 * @param name QName which will be used as node identifier
115 * @param value Value of leaf node.
116 * @param <T> Type of leaf node value
117 * @return Leaf node with supplied identifier and value
119 public static <T> @NonNull LeafNode<T> leafNode(final QName name, final T value) {
120 return leafNode(NodeIdentifier.create(name), value);
123 public static MapEntryNode.@NonNull Builder mapEntryBuilder(final QName nodeName, final QName keyName,
124 final Object keyValue) {
125 final var ret = mapEntryBuilder();
126 // FIXME: use fluent once we have specialized enough
127 ret.withNodeIdentifier(NodeIdentifierWithPredicates.of(nodeName, keyName, keyValue))
128 .withChild(leafNode(keyName, keyValue));
132 public static MapEntryNode.@NonNull Builder mapEntryBuilder() {
133 return BUILDER_FACTORY.newMapEntryBuilder();
136 public static @NonNull MapEntryNode mapEntry(final QName nodeName, final QName keyName, final Object keyValue) {
137 return mapEntryBuilder(nodeName, keyName, keyValue).build();
141 * Create an immutable container node.
143 * @param name QName which will be used as node identifier
144 * @return A container node
146 public static @NonNull ContainerNode containerNode(final QName name) {
147 return containerNode(NodeIdentifier.create(name));
151 * Create an immutable container node.
153 * @param name Node identifier
154 * @return A container node
156 public static @NonNull ContainerNode containerNode(final NodeIdentifier name) {
157 return BUILDER_FACTORY.newContainerBuilder().withNodeIdentifier(name).build();
161 * Create an immutable choice node.
163 * @param name QName which will be used as node identifier
164 * @return A choice node
166 public static @NonNull ChoiceNode choiceNode(final QName name) {
167 return choiceNode(NodeIdentifier.create(name));
171 * Create an immutable choice node.
173 * @param name Node identifier
174 * @return A choice node
176 public static @NonNull ChoiceNode choiceNode(final NodeIdentifier name) {
177 return BUILDER_FACTORY.newChoiceBuilder().withNodeIdentifier(name).build();
181 * Create an immutable list node.
183 * @param name QName which will be used as node identifier
184 * @return An unkeyed list node
186 public static @NonNull UnkeyedListNode listNode(final QName name) {
187 return listNode(NodeIdentifier.create(name));
191 * Create an immutable list node.
193 * @param name Node identifier
194 * @return An unkeyed list node
196 public static @NonNull UnkeyedListNode listNode(final NodeIdentifier name) {
197 return BUILDER_FACTORY.newUnkeyedListBuilder().withNodeIdentifier(name).build();
201 * Convert YangInstanceIdentifier into a normalized node structure.
203 * @param ctx schema context to used during serialization
204 * @param id instance identifier to convert to node structure starting from root
205 * @return serialized normalized node for provided instance Id
206 * @throws NullPointerException if any argument is null
207 * @throws IllegalArgumentException if the identifier cannot be converted
209 public static @NonNull NormalizedNode fromInstanceId(final EffectiveModelContext ctx,
210 final YangInstanceIdentifier id) {
212 return containerNode(SCHEMACONTEXT_NAME);
215 final var result = new NormalizationResultHolder();
216 try (var writer = ImmutableNormalizedNodeStreamWriter.from(result)) {
217 try (var iidWriter = YangInstanceIdentifierWriter.open(writer, ctx, id)) {
218 // leaf-list entry nodes are special: they require a value and we can derive it from our instance
220 final var lastArg = id.getLastPathArgument();
221 if (lastArg instanceof NodeWithValue<?> withValue) {
222 writer.scalarValue(withValue.getValue());
225 } catch (IOException e) {
226 throw new IllegalArgumentException("Failed to convert " + id, e);
228 return result.getResult().data();