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.tree.impl.di;
10 import static com.google.common.base.Preconditions.checkArgument;
12 import javax.inject.Inject;
13 import javax.inject.Singleton;
14 import org.eclipse.jdt.annotation.NonNull;
15 import org.kohsuke.MetaInfServices;
16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
18 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
20 import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
21 import org.opendaylight.yangtools.yang.data.api.schema.DistinctNodeContainer;
22 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
23 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode.BuilderFactory;
24 import org.opendaylight.yangtools.yang.data.spi.node.ImmutableNodes;
25 import org.opendaylight.yangtools.yang.data.tree.api.DataTree;
26 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeCandidate;
27 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeConfiguration;
28 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeFactory;
29 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeModification;
30 import org.opendaylight.yangtools.yang.data.tree.api.DataValidationFailedException;
31 import org.opendaylight.yangtools.yang.data.tree.impl.InMemoryDataTree;
32 import org.opendaylight.yangtools.yang.data.tree.impl.node.TreeNode;
33 import org.opendaylight.yangtools.yang.data.tree.impl.node.Version;
34 import org.opendaylight.yangtools.yang.data.util.DataSchemaContextTree;
35 import org.opendaylight.yangtools.yang.model.api.ContainerLike;
36 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
37 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
38 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
39 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
40 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
41 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
42 import org.osgi.service.component.annotations.Activate;
43 import org.osgi.service.component.annotations.Component;
44 import org.osgi.service.component.annotations.Deactivate;
45 import org.osgi.service.component.annotations.RequireServiceComponentRuntime;
46 import org.slf4j.Logger;
47 import org.slf4j.LoggerFactory;
50 * A factory for creating in-memory data trees.
55 @RequireServiceComponentRuntime
56 public final class InMemoryDataTreeFactory implements DataTreeFactory {
57 private static final Logger LOG = LoggerFactory.getLogger(InMemoryDataTreeFactory.class);
58 private static final BuilderFactory BUILDER_FACTORY = ImmutableNodes.builderFactory();
59 // FIXME: YANGTOOLS-1074: we do not want this name
60 private static final @NonNull ContainerNode ROOT_CONTAINER = BUILDER_FACTORY.newContainerBuilder(0)
61 .withNodeIdentifier(NodeIdentifier.create(SchemaContext.NAME))
65 public InMemoryDataTreeFactory() {
70 public DataTree create(final DataTreeConfiguration treeConfig) {
71 return new InMemoryDataTree(TreeNode.of(createRoot(treeConfig.getRootPath()),
72 Version.initial()), treeConfig, null);
76 public DataTree create(final DataTreeConfiguration treeConfig, final EffectiveModelContext initialSchemaContext) {
77 return createDataTree(treeConfig, initialSchemaContext, true);
81 public DataTree create(final DataTreeConfiguration treeConfig, final EffectiveModelContext initialSchemaContext,
82 final DistinctNodeContainer<?, ?> initialRoot) throws DataValidationFailedException {
83 final DataTree ret = createDataTree(treeConfig, initialSchemaContext, false);
85 final DataTreeModification mod = ret.takeSnapshot().newModification();
86 mod.write(YangInstanceIdentifier.of(), initialRoot);
90 final DataTreeCandidate candidate = ret.prepare(mod);
91 ret.commit(candidate);
96 @SuppressWarnings("static-method")
98 LOG.debug("In-memory Data Tree activated");
102 @SuppressWarnings("static-method")
104 LOG.debug("In-memory Data Tree deactivated");
107 private static @NonNull DataTree createDataTree(final DataTreeConfiguration treeConfig,
108 final EffectiveModelContext initialSchemaContext, final boolean maskMandatory) {
109 final DataSchemaNode rootSchemaNode = getRootSchemaNode(initialSchemaContext, treeConfig.getRootPath());
110 final NormalizedNode rootDataNode = createRoot((DataNodeContainer)rootSchemaNode,
111 treeConfig.getRootPath());
112 return new InMemoryDataTree(TreeNode.of(rootDataNode, Version.initial()), treeConfig,
113 initialSchemaContext, rootSchemaNode, maskMandatory);
116 private static @NonNull NormalizedNode createRoot(final DataNodeContainer schemaNode,
117 final YangInstanceIdentifier path) {
118 if (path.isEmpty()) {
119 checkArgument(schemaNode instanceof ContainerLike,
120 "Conceptual tree root has to be a container, not %s", schemaNode);
121 return ROOT_CONTAINER;
124 final PathArgument arg = path.getLastPathArgument();
125 if (schemaNode instanceof ContainerSchemaNode) {
126 checkArgument(arg instanceof NodeIdentifier, "Mismatched container %s path %s", schemaNode, path);
127 return BUILDER_FACTORY.newContainerBuilder().withNodeIdentifier((NodeIdentifier) arg).build();
128 } else if (schemaNode instanceof ListSchemaNode listSchema) {
129 // This can either be a top-level list or its individual entry
130 if (arg instanceof NodeIdentifierWithPredicates nip) {
131 return BUILDER_FACTORY.newMapEntryBuilder().withNodeIdentifier(nip).build();
133 checkArgument(arg instanceof NodeIdentifier, "Mismatched list %s path %s", schemaNode, path);
134 final var builder = listSchema.isUserOrdered() ? BUILDER_FACTORY.newUserMapBuilder()
135 : BUILDER_FACTORY.newSystemMapBuilder();
136 return builder.withNodeIdentifier((NodeIdentifier) arg).build();
138 throw new IllegalArgumentException("Unsupported root schema " + schemaNode);
142 private static @NonNull NormalizedNode createRoot(final YangInstanceIdentifier path) {
143 if (path.isEmpty()) {
144 return ROOT_CONTAINER;
147 final PathArgument arg = path.getLastPathArgument();
148 if (arg instanceof NodeIdentifier nodeId) {
149 return BUILDER_FACTORY.newContainerBuilder().withNodeIdentifier(nodeId).build();
151 if (arg instanceof NodeIdentifierWithPredicates nip) {
152 return BUILDER_FACTORY.newMapEntryBuilder().withNodeIdentifier(nip).build();
155 // FIXME: implement augmentations and leaf-lists
156 throw new IllegalArgumentException("Unsupported root node " + arg);
159 private static DataSchemaNode getRootSchemaNode(final EffectiveModelContext schemaContext,
160 final YangInstanceIdentifier rootPath) {
161 final var contextTree = DataSchemaContextTree.from(schemaContext);
162 final var rootContextNode = contextTree.childByPath(rootPath);
163 checkArgument(rootContextNode != null, "Failed to find root %s in schema context", rootPath);
165 final var rootSchemaNode = rootContextNode.dataSchemaNode();
166 checkArgument(rootSchemaNode instanceof DataNodeContainer, "Root %s resolves to non-container type %s",
167 rootPath, rootSchemaNode);
168 return rootSchemaNode;