2 * Copyright (c) 2015 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 static com.google.common.base.Preconditions.checkArgument;
11 import static com.google.common.base.Preconditions.checkState;
13 import com.google.common.collect.Iterables;
14 import java.util.Iterator;
15 import java.util.List;
16 import java.util.Optional;
17 import javax.xml.transform.dom.DOMSource;
18 import org.eclipse.jdt.annotation.NonNull;
19 import org.opendaylight.yangtools.concepts.AbstractIdentifiable;
20 import org.opendaylight.yangtools.yang.common.QName;
21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
22 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
23 import org.opendaylight.yangtools.yang.data.api.schema.AnyXmlNode;
24 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
25 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListEntryNode;
26 import org.opendaylight.yangtools.yang.data.api.schema.UnkeyedListNode;
27 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder;
28 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeBuilder;
29 import org.opendaylight.yangtools.yang.model.api.AnyXmlSchemaNode;
30 import org.opendaylight.yangtools.yang.model.api.AugmentationSchemaNode;
31 import org.opendaylight.yangtools.yang.model.api.AugmentationTarget;
32 import org.opendaylight.yangtools.yang.model.api.CaseSchemaNode;
33 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
34 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
35 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
36 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
37 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
38 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
39 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
42 * Base strategy for converting an instance identifier into a normalized node structure.
43 * Use provided static methods for generic YangInstanceIdentifier -> NormalizedNode translation in ImmutableNodes.
45 abstract class InstanceIdToNodes<T extends PathArgument> extends AbstractIdentifiable<T> {
46 InstanceIdToNodes(final T identifier) {
51 * Build a strategy for the next path argument.
53 * @param child child identifier
54 * @return transformation strategy for a specific child
56 abstract InstanceIdToNodes<?> getChild(PathArgument child);
59 * Convert instance identifier into a NormalizedNode structure.
61 * @param instanceId Instance identifier to transform into NormalizedNodes
62 * @param deepestChild Optional normalized node to be inserted as the last child
63 * @param operation Optional modify operation to be set on the last child
64 * @return NormalizedNode structure corresponding to submitted instance ID
66 abstract @NonNull NormalizedNode<?, ?> create(PathArgument first, Iterator<PathArgument> others,
67 Optional<NormalizedNode<?, ?>> deepestChild);
69 abstract boolean isMixin();
71 private static final class UnkeyedListMixinNormalization extends InstanceIdToCompositeNodes<NodeIdentifier> {
72 private final UnkeyedListItemNormalization innerNode;
74 UnkeyedListMixinNormalization(final ListSchemaNode list) {
75 super(NodeIdentifier.create(list.getQName()));
76 this.innerNode = new UnkeyedListItemNormalization(list);
80 CollectionNodeBuilder<UnkeyedListEntryNode, UnkeyedListNode> createBuilder(final PathArgument compositeNode) {
81 return Builders.unkeyedListBuilder().withNodeIdentifier(getIdentifier());
85 InstanceIdToNodes<?> getChild(final PathArgument child) {
86 return child.getNodeType().equals(getIdentifier().getNodeType()) ? innerNode : null;
95 private static final class AnyXmlNormalization extends InstanceIdToNodes<NodeIdentifier> {
96 AnyXmlNormalization(final AnyXmlSchemaNode schema) {
97 super(NodeIdentifier.create(schema.getQName()));
101 InstanceIdToNodes<?> getChild(final PathArgument child) {
106 NormalizedNode<?, ?> create(final PathArgument first, final Iterator<PathArgument> others,
107 final Optional<NormalizedNode<?, ?>> deepestChild) {
108 final NormalizedNodeBuilder<NodeIdentifier, DOMSource, AnyXmlNode> builder = Builders.anyXmlBuilder()
109 .withNodeIdentifier(getIdentifier());
110 if (deepestChild.isPresent()) {
111 final NormalizedNode<?, ?> child = deepestChild.get();
112 checkState(child instanceof AnyXmlNode);
113 builder.withValue(((AnyXmlNode) child).getValue());
116 return builder.build();
125 private static Optional<DataSchemaNode> findChildSchemaNode(final DataNodeContainer parent, final QName child) {
126 final Optional<DataSchemaNode> potential = parent.findDataChildByName(child);
127 return potential.isPresent() ? potential : Optional.ofNullable(
128 findChoice(Iterables.filter(parent.getChildNodes(), ChoiceSchemaNode.class), child));
131 static InstanceIdToNodes<?> fromSchemaAndQNameChecked(final DataNodeContainer schema, final QName child) {
132 final Optional<DataSchemaNode> potential = findChildSchemaNode(schema, child);
133 checkArgument(potential.isPresent(),
134 "Supplied QName %s is not valid according to schema %s, potential children nodes: %s", child, schema,
135 schema.getChildNodes());
137 final DataSchemaNode result = potential.get();
138 // We try to look up if this node was added by augmentation
139 if (schema instanceof DataSchemaNode && result.isAugmenting()) {
140 return fromAugmentation(schema, (AugmentationTarget) schema, result);
142 return fromDataSchemaNode(result);
145 private static ChoiceSchemaNode findChoice(final Iterable<ChoiceSchemaNode> choices, final QName child) {
146 for (final ChoiceSchemaNode choice : choices) {
147 for (final CaseSchemaNode caze : choice.getCases().values()) {
148 if (findChildSchemaNode(caze, child).isPresent()) {
157 * Returns a SchemaPathUtil for provided child node
159 * If supplied child is added by Augmentation this operation returns
160 * a SchemaPathUtil for augmentation,
161 * otherwise returns a SchemaPathUtil for child as
162 * call for {@link #fromDataSchemaNode(org.opendaylight.yangtools.yang.model.api.DataSchemaNode)}.
164 private static InstanceIdToNodes<?> fromAugmentation(final DataNodeContainer parent,
165 final AugmentationTarget parentAug, final DataSchemaNode child) {
166 for (final AugmentationSchemaNode aug : parentAug.getAvailableAugmentations()) {
167 final Optional<DataSchemaNode> potential = aug.findDataChildByName(child.getQName());
168 if (potential.isPresent()) {
169 return new InstanceIdToCompositeNodes.AugmentationNormalization(aug, parent);
172 return fromDataSchemaNode(child);
175 static InstanceIdToNodes<?> fromDataSchemaNode(final DataSchemaNode potential) {
176 if (potential instanceof ContainerSchemaNode) {
177 return new InstanceIdToCompositeNodes.ContainerTransformation((ContainerSchemaNode) potential);
178 } else if (potential instanceof ListSchemaNode) {
179 return fromListSchemaNode((ListSchemaNode) potential);
180 } else if (potential instanceof LeafSchemaNode) {
181 return new InstanceIdToSimpleNodes.LeafNormalization((LeafSchemaNode) potential);
182 } else if (potential instanceof ChoiceSchemaNode) {
183 return new InstanceIdToCompositeNodes.ChoiceNodeNormalization((ChoiceSchemaNode) potential);
184 } else if (potential instanceof LeafListSchemaNode) {
185 return fromLeafListSchemaNode((LeafListSchemaNode) potential);
186 } else if (potential instanceof AnyXmlSchemaNode) {
187 return new AnyXmlNormalization((AnyXmlSchemaNode) potential);
192 private static InstanceIdToNodes<?> fromListSchemaNode(final ListSchemaNode potential) {
193 final List<QName> keyDefinition = potential.getKeyDefinition();
194 if (keyDefinition == null || keyDefinition.isEmpty()) {
195 return new UnkeyedListMixinNormalization(potential);
197 return potential.isUserOrdered() ? new InstanceIdToCompositeNodes.OrderedMapMixinNormalization(potential)
198 : new InstanceIdToCompositeNodes.UnorderedMapMixinNormalization(potential);
201 private static InstanceIdToNodes<?> fromLeafListSchemaNode(final LeafListSchemaNode potential) {
202 return potential.isUserOrdered() ? new InstanceIdToCompositeNodes.OrderedLeafListMixinNormalization(potential)
203 : new InstanceIdToCompositeNodes.UnorderedLeafListMixinNormalization(potential);