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 com.google.common.base.Preconditions;
11 import java.util.Map.Entry;
12 import java.util.Optional;
13 import org.opendaylight.yangtools.yang.common.QName;
14 import org.opendaylight.yangtools.yang.data.api.ModifyAction;
15 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
18 import org.opendaylight.yangtools.yang.data.api.schema.ChoiceNode;
19 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
20 import org.opendaylight.yangtools.yang.data.api.schema.LeafNode;
21 import org.opendaylight.yangtools.yang.data.api.schema.MapEntryNode;
22 import org.opendaylight.yangtools.yang.data.api.schema.MapNode;
23 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
24 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder;
25 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.DataContainerNodeBuilder;
26 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableChoiceNodeBuilder;
27 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
28 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableLeafNodeBuilder;
29 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableMapEntryNodeBuilder;
30 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableMapNodeBuilder;
31 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
32 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
34 public final class ImmutableNodes {
36 private ImmutableNodes() {
37 throw new UnsupportedOperationException("Utilities class should not be instantiated");
40 public static CollectionNodeBuilder<MapEntryNode, MapNode> mapNodeBuilder() {
41 return ImmutableMapNodeBuilder.create();
44 public static CollectionNodeBuilder<MapEntryNode, MapNode> mapNodeBuilder(final QName name) {
45 return mapNodeBuilder(NodeIdentifier.create(name));
48 public static CollectionNodeBuilder<MapEntryNode, MapNode> mapNodeBuilder(final NodeIdentifier name) {
49 return ImmutableMapNodeBuilder.create().withNodeIdentifier(name);
53 * Construct immutable leaf node.
55 * @param name Identifier of leaf node
56 * @param value Value of leaf node
57 * @param <T> Type of leaf node value
58 * @return Leaf node with supplied identifier and value
60 public static <T> LeafNode<T> leafNode(final NodeIdentifier name, final T value) {
61 return ImmutableLeafNodeBuilder.<T>create()
62 .withNodeIdentifier(name)
68 * Construct immutable leaf node.
70 * @param name QName which will be used as node identifier
71 * @param value Value of leaf node.
72 * @param <T> Type of leaf node value
73 * @return Leaf node with supplied identifier and value
75 public static <T> LeafNode<T> leafNode(final QName name, final T value) {
76 return leafNode(NodeIdentifier.create(name), value);
79 public static DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> mapEntryBuilder(
80 final QName nodeName, final QName keyName, final Object keyValue) {
81 return ImmutableMapEntryNodeBuilder.create()
82 .withNodeIdentifier(new NodeIdentifierWithPredicates(nodeName, keyName, keyValue))
83 .withChild(leafNode(keyName, keyValue));
86 public static DataContainerNodeBuilder<NodeIdentifierWithPredicates, MapEntryNode> mapEntryBuilder() {
87 return ImmutableMapEntryNodeBuilder.create();
90 public static MapEntryNode mapEntry(final QName nodeName,final QName keyName,final Object keyValue) {
91 return mapEntryBuilder(nodeName, keyName, keyValue).build();
94 public static ContainerNode containerNode(final QName name) {
95 return ImmutableContainerNodeBuilder.create().withNodeIdentifier(NodeIdentifier.create(name)).build();
98 public static ChoiceNode choiceNode(final QName name) {
99 return ImmutableChoiceNodeBuilder.create().withNodeIdentifier(NodeIdentifier.create(name)).build();
103 * Convert YangInstanceIdentifier into a normalized node structure.
105 * @param ctx schema context to used during serialization
106 * @param id instance identifier to convert to node structure starting from root
107 * @return serialized normalized node for provided instance Id
109 public static NormalizedNode<?, ?> fromInstanceId(final SchemaContext ctx, final YangInstanceIdentifier id) {
110 return fromInstanceId(ctx, id, Optional.empty(), Optional.empty());
114 * Convert YangInstanceIdentifier into a normalized node structure.
116 * @param ctx schema context to used during serialization
117 * @param id instance identifier to convert to node structure starting from root
118 * @param deepestElement pre-built deepest child that will be inserted at the last path argument of provided
119 * instance identifier
120 * @return serialized normalized node for provided instance Id with overridden last child.
122 public static NormalizedNode<?, ?> fromInstanceId(final SchemaContext ctx, final YangInstanceIdentifier id,
123 final NormalizedNode<?, ?> deepestElement) {
124 return fromInstanceId(ctx, id, Optional.of(deepestElement), Optional.empty());
128 * Convert YangInstanceIdentifier into a normalized node structure.
130 * @param ctx schema context to used during serialization
131 * @param id instance identifier to convert to node structure starting from root
132 * @param deepestElement pre-built deepest child that will be inserted at the last path argument of provided
133 * instance identifier
134 * @param operation modify operation attribute to be added to the deepest child. QName is the operation attribute
135 * key and ModifyAction is the value.
136 * @return serialized normalized node for provided instance Id with (optionally) overridden last child
137 * and (optionally) marked with specific operation attribute.
139 public static NormalizedNode<?, ?> fromInstanceId(final SchemaContext ctx, final YangInstanceIdentifier id,
140 final Optional<NormalizedNode<?, ?>> deepestElement, final Optional<Entry<QName, ModifyAction>> operation) {
141 final YangInstanceIdentifier.PathArgument topLevelElement = id.getPathArguments().get(0);
142 final DataSchemaNode dataChildByName = ctx.getDataChildByName(topLevelElement.getNodeType());
143 Preconditions.checkNotNull(dataChildByName,
144 "Cannot find %s node in schema context. Instance identifier has to start from root", topLevelElement);
145 final InstanceIdToNodes<?> instanceIdToNodes = InstanceIdToNodes.fromSchemaAndQNameChecked(ctx,
146 topLevelElement.getNodeType());
147 return instanceIdToNodes.create(id, deepestElement, operation);