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.DistinctNodeContainer;
21 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
22 import org.opendaylight.yangtools.yang.data.impl.schema.Builders;
23 import org.opendaylight.yangtools.yang.data.impl.schema.ImmutableNodes;
24 import org.opendaylight.yangtools.yang.data.tree.api.DataTree;
25 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeCandidate;
26 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeConfiguration;
27 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeFactory;
28 import org.opendaylight.yangtools.yang.data.tree.api.DataTreeModification;
29 import org.opendaylight.yangtools.yang.data.tree.api.DataValidationFailedException;
30 import org.opendaylight.yangtools.yang.data.tree.impl.InMemoryDataTree;
31 import org.opendaylight.yangtools.yang.data.tree.impl.node.TreeNode;
32 import org.opendaylight.yangtools.yang.data.tree.impl.node.Version;
33 import org.opendaylight.yangtools.yang.data.util.DataSchemaContextTree;
34 import org.opendaylight.yangtools.yang.model.api.ContainerLike;
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.EffectiveModelContext;
39 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
40 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
41 import org.osgi.service.component.annotations.Activate;
42 import org.osgi.service.component.annotations.Component;
43 import org.osgi.service.component.annotations.Deactivate;
44 import org.osgi.service.component.annotations.RequireServiceComponentRuntime;
45 import org.slf4j.Logger;
46 import org.slf4j.LoggerFactory;
49 * A factory for creating in-memory data trees.
54 @RequireServiceComponentRuntime
55 public final class InMemoryDataTreeFactory implements DataTreeFactory {
56 private static final Logger LOG = LoggerFactory.getLogger(InMemoryDataTreeFactory.class);
57 // FIXME: YANGTOOLS-1074: we do not want this name
58 private static final @NonNull NormalizedNode ROOT_CONTAINER =
59 ImmutableNodes.containerNode(SchemaContext.NAME);
62 public InMemoryDataTreeFactory() {
67 public DataTree create(final DataTreeConfiguration treeConfig) {
68 return new InMemoryDataTree(TreeNode.of(createRoot(treeConfig.getRootPath()),
69 Version.initial()), treeConfig, null);
73 public DataTree create(final DataTreeConfiguration treeConfig, final EffectiveModelContext initialSchemaContext) {
74 return createDataTree(treeConfig, initialSchemaContext, true);
78 public DataTree create(final DataTreeConfiguration treeConfig, final EffectiveModelContext initialSchemaContext,
79 final DistinctNodeContainer<?, ?> initialRoot) throws DataValidationFailedException {
80 final DataTree ret = createDataTree(treeConfig, initialSchemaContext, false);
82 final DataTreeModification mod = ret.takeSnapshot().newModification();
83 mod.write(YangInstanceIdentifier.of(), initialRoot);
87 final DataTreeCandidate candidate = ret.prepare(mod);
88 ret.commit(candidate);
93 @SuppressWarnings("static-method")
95 LOG.debug("In-memory Data Tree activated");
99 @SuppressWarnings("static-method")
101 LOG.debug("In-memory Data Tree deactivated");
104 private static @NonNull DataTree createDataTree(final DataTreeConfiguration treeConfig,
105 final EffectiveModelContext initialSchemaContext, final boolean maskMandatory) {
106 final DataSchemaNode rootSchemaNode = getRootSchemaNode(initialSchemaContext, treeConfig.getRootPath());
107 final NormalizedNode rootDataNode = createRoot((DataNodeContainer)rootSchemaNode,
108 treeConfig.getRootPath());
109 return new InMemoryDataTree(TreeNode.of(rootDataNode, Version.initial()), treeConfig,
110 initialSchemaContext, rootSchemaNode, maskMandatory);
113 private static @NonNull NormalizedNode createRoot(final DataNodeContainer schemaNode,
114 final YangInstanceIdentifier path) {
115 if (path.isEmpty()) {
116 checkArgument(schemaNode instanceof ContainerLike,
117 "Conceptual tree root has to be a container, not %s", schemaNode);
118 return ROOT_CONTAINER;
121 final PathArgument arg = path.getLastPathArgument();
122 if (schemaNode instanceof ContainerSchemaNode) {
123 checkArgument(arg instanceof NodeIdentifier, "Mismatched container %s path %s", schemaNode, path);
124 return Builders.containerBuilder().withNodeIdentifier((NodeIdentifier) arg).build();
125 } else if (schemaNode instanceof ListSchemaNode) {
126 // This can either be a top-level list or its individual entry
127 if (arg instanceof NodeIdentifierWithPredicates) {
128 return ImmutableNodes.mapEntryBuilder().withNodeIdentifier((NodeIdentifierWithPredicates) arg).build();
130 checkArgument(arg instanceof NodeIdentifier, "Mismatched list %s path %s", schemaNode, path);
131 return ImmutableNodes.mapNodeBuilder().withNodeIdentifier((NodeIdentifier) arg).build();
133 throw new IllegalArgumentException("Unsupported root schema " + schemaNode);
137 private static @NonNull NormalizedNode createRoot(final YangInstanceIdentifier path) {
138 if (path.isEmpty()) {
139 return ROOT_CONTAINER;
142 final PathArgument arg = path.getLastPathArgument();
143 if (arg instanceof NodeIdentifier) {
144 return Builders.containerBuilder().withNodeIdentifier((NodeIdentifier) arg).build();
146 if (arg instanceof NodeIdentifierWithPredicates) {
147 return ImmutableNodes.mapEntryBuilder().withNodeIdentifier((NodeIdentifierWithPredicates) arg).build();
150 // FIXME: implement augmentations and leaf-lists
151 throw new IllegalArgumentException("Unsupported root node " + arg);
154 private static DataSchemaNode getRootSchemaNode(final EffectiveModelContext schemaContext,
155 final YangInstanceIdentifier rootPath) {
156 final var contextTree = DataSchemaContextTree.from(schemaContext);
157 final var rootContextNode = contextTree.childByPath(rootPath);
158 checkArgument(rootContextNode != null, "Failed to find root %s in schema context", rootPath);
160 final var rootSchemaNode = rootContextNode.dataSchemaNode();
161 checkArgument(rootSchemaNode instanceof DataNodeContainer, "Root %s resolves to non-container type %s",
162 rootPath, rootSchemaNode);
163 return rootSchemaNode;