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 com.google.common.base.Optional;
11 import com.google.common.base.Preconditions;
12 import com.google.common.collect.FluentIterable;
13 import java.util.Collections;
14 import java.util.List;
15 import java.util.Map.Entry;
16 import javax.xml.transform.dom.DOMSource;
17 import org.opendaylight.yangtools.concepts.Identifiable;
18 import org.opendaylight.yangtools.yang.common.QName;
19 import org.opendaylight.yangtools.yang.data.api.ModifyAction;
20 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
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.AttributesBuilder;
28 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.CollectionNodeBuilder;
29 import org.opendaylight.yangtools.yang.data.impl.schema.builder.api.NormalizedNodeAttrBuilder;
30 import org.opendaylight.yangtools.yang.model.api.AnyXmlSchemaNode;
31 import org.opendaylight.yangtools.yang.model.api.AugmentationSchema;
32 import org.opendaylight.yangtools.yang.model.api.AugmentationTarget;
33 import org.opendaylight.yangtools.yang.model.api.ChoiceCaseNode;
34 import org.opendaylight.yangtools.yang.model.api.ChoiceSchemaNode;
35 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
36 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
37 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
38 import org.opendaylight.yangtools.yang.model.api.LeafListSchemaNode;
39 import org.opendaylight.yangtools.yang.model.api.LeafSchemaNode;
40 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
43 * Base strategy for converting an instance identifier into a normalized node structure.
44 * Use provided static methods for generic YangInstanceIdentifier -> NormalizedNode translation in ImmutableNodes.
46 abstract class InstanceIdToNodes<T extends PathArgument> implements Identifiable<T> {
48 private final T identifier;
51 public final T getIdentifier() {
55 protected InstanceIdToNodes(final T identifier) {
56 this.identifier = identifier;
60 * Build a strategy for the next path argument
62 * @param child child identifier
63 * @return transformation strategy for a specific child
65 abstract InstanceIdToNodes<?> getChild(final PathArgument child);
69 * Convert instance identifier into a NormalizedNode structure
71 * @param instanceId Instance identifier to transform into NormalizedNodes
72 * @param deepestChild Optional normalized node to be inserted as the last child
73 * @param operation Optional modify operation to be set on the last child
74 * @return NormalizedNode structure corresponding to submitted instance ID
76 abstract NormalizedNode<?, ?> create(YangInstanceIdentifier instanceId, Optional<NormalizedNode<?, ?>> deepestChild, Optional<Entry<QName,ModifyAction>> operation);
78 abstract boolean isMixin();
80 public void addModifyOpIfPresent(final Optional<Entry<QName,ModifyAction>> operation, final AttributesBuilder<?> builder) {
81 if (operation.isPresent()) {
82 builder.withAttributes(Collections.singletonMap(operation.get().getKey(), modifyOperationToXmlString(operation.get().getValue())));
86 public static String modifyOperationToXmlString(final ModifyAction operation) {
87 return operation.name().toLowerCase();
90 private final static class UnkeyedListMixinNormalization extends InstanceIdToCompositeNodes<NodeIdentifier> {
92 private final UnkeyedListItemNormalization innerNode;
94 public UnkeyedListMixinNormalization(final ListSchemaNode list) {
95 super(NodeIdentifier.create(list.getQName()));
96 this.innerNode = new UnkeyedListItemNormalization(list);
100 protected CollectionNodeBuilder<UnkeyedListEntryNode, UnkeyedListNode> createBuilder(final PathArgument compositeNode) {
101 return Builders.unkeyedListBuilder().withNodeIdentifier(getIdentifier());
105 public InstanceIdToNodes<?> getChild(final PathArgument child) {
106 if (child.getNodeType().equals(getIdentifier().getNodeType())) {
118 private static class AnyXmlNormalization extends InstanceIdToNodes<NodeIdentifier> {
120 protected AnyXmlNormalization(final AnyXmlSchemaNode schema) {
121 super(NodeIdentifier.create(schema.getQName()));
125 public InstanceIdToNodes<?> getChild(final PathArgument child) {
130 public NormalizedNode<?, ?> create(final YangInstanceIdentifier instanceId,
131 final Optional<NormalizedNode<?, ?>> deepestChild,
132 final Optional<Entry<QName,ModifyAction>> operation) {
133 if (deepestChild.isPresent()) {
134 final NormalizedNode<?, ?> child = deepestChild.get();
135 Preconditions.checkState(child instanceof AnyXmlNode);
137 final NormalizedNodeAttrBuilder<NodeIdentifier, DOMSource, AnyXmlNode> anyXmlBuilder =
138 Builders.anyXmlBuilder().withNodeIdentifier(getIdentifier()).withValue(((AnyXmlNode) child).getValue());
139 addModifyOpIfPresent(operation, anyXmlBuilder);
140 return anyXmlBuilder.build();
143 final NormalizedNodeAttrBuilder<NodeIdentifier, DOMSource, AnyXmlNode> builder =
144 Builders.anyXmlBuilder().withNodeIdentifier(getIdentifier());
145 addModifyOpIfPresent(operation, builder);
146 return builder.build();
155 private static Optional<DataSchemaNode> findChildSchemaNode(final DataNodeContainer parent, final QName child) {
156 DataSchemaNode potential = parent.getDataChildByName(child);
157 if (potential == null) {
158 final Iterable<ChoiceSchemaNode> choices = FluentIterable.from(parent.getChildNodes()).filter(ChoiceSchemaNode.class);
159 potential = findChoice(choices, child);
161 return Optional.fromNullable(potential);
164 static InstanceIdToNodes<?> fromSchemaAndQNameChecked(final DataNodeContainer schema, final QName child) {
165 final Optional<DataSchemaNode> potential = findChildSchemaNode(schema, child);
166 Preconditions.checkArgument(potential.isPresent(),
167 "Supplied QName %s is not valid according to schema %s, potential children nodes: %s", child, schema, schema.getChildNodes());
169 final DataSchemaNode result = potential.get();
170 // We try to look up if this node was added by augmentation
171 if (schema instanceof DataSchemaNode && result.isAugmenting()) {
172 return fromAugmentation(schema, (AugmentationTarget) schema, result);
174 return fromDataSchemaNode(result);
177 private static ChoiceSchemaNode findChoice(final Iterable<ChoiceSchemaNode> choices, final QName child) {
178 ChoiceSchemaNode foundChoice = null;
180 for (final ChoiceSchemaNode choice : choices) {
181 for (final ChoiceCaseNode caze : choice.getCases()) {
182 if (findChildSchemaNode(caze, child).isPresent()) {
183 foundChoice = choice;
192 * Returns a SchemaPathUtil for provided child node
194 * If supplied child is added by Augmentation this operation returns
195 * a SchemaPathUtil for augmentation,
196 * otherwise returns a SchemaPathUtil for child as
197 * call for {@link #fromDataSchemaNode(org.opendaylight.yangtools.yang.model.api.DataSchemaNode)}.
199 private static InstanceIdToNodes<?> fromAugmentation(final DataNodeContainer parent,
200 final AugmentationTarget parentAug, final DataSchemaNode child) {
201 AugmentationSchema augmentation = null;
202 for (final AugmentationSchema aug : parentAug.getAvailableAugmentations()) {
203 final DataSchemaNode potential = aug.getDataChildByName(child.getQName());
204 if (potential != null) {
210 if (augmentation != null) {
211 return new InstanceIdToCompositeNodes.AugmentationNormalization(augmentation, parent);
213 return fromDataSchemaNode(child);
216 static InstanceIdToNodes<?> fromDataSchemaNode(final DataSchemaNode potential) {
217 if (potential instanceof ContainerSchemaNode) {
218 return new InstanceIdToCompositeNodes.ContainerTransformation((ContainerSchemaNode) potential);
219 } else if (potential instanceof ListSchemaNode) {
220 return fromListSchemaNode((ListSchemaNode) potential);
221 } else if (potential instanceof LeafSchemaNode) {
222 return new InstanceIdToSimpleNodes.LeafNormalization((LeafSchemaNode) potential);
223 } else if (potential instanceof ChoiceSchemaNode) {
224 return new InstanceIdToCompositeNodes.ChoiceNodeNormalization((ChoiceSchemaNode) potential);
225 } else if (potential instanceof LeafListSchemaNode) {
226 return fromLeafListSchemaNode((LeafListSchemaNode) potential);
227 } else if (potential instanceof AnyXmlSchemaNode) {
228 return new AnyXmlNormalization((AnyXmlSchemaNode) potential);
233 private static InstanceIdToNodes<?> fromListSchemaNode(final ListSchemaNode potential) {
234 final List<QName> keyDefinition = potential.getKeyDefinition();
235 if (keyDefinition == null || keyDefinition.isEmpty()) {
236 return new UnkeyedListMixinNormalization(potential);
238 if (potential.isUserOrdered()) {
239 return new InstanceIdToCompositeNodes.OrderedMapMixinNormalization(potential);
241 return new InstanceIdToCompositeNodes.UnorderedMapMixinNormalization(potential);
244 private static InstanceIdToNodes<?> fromLeafListSchemaNode(final LeafListSchemaNode potential) {
245 if (potential.isUserOrdered()) {
246 return new InstanceIdToCompositeNodes.OrderedLeafListMixinNormalization(potential);
248 return new InstanceIdToCompositeNodes.UnorderedLeafListMixinNormalization(potential);