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 java.util.Optional;
13 import javax.inject.Inject;
14 import javax.inject.Singleton;
15 import org.eclipse.jdt.annotation.NonNull;
16 import org.kohsuke.MetaInfServices;
17 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
18 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
20 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
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.impl.schema.ImmutableNodes;
24 import org.opendaylight.yangtools.yang.data.impl.schema.builder.impl.ImmutableContainerNodeBuilder;
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.DataSchemaContextNode;
35 import org.opendaylight.yangtools.yang.data.util.DataSchemaContextTree;
36 import org.opendaylight.yangtools.yang.model.api.ContainerLike;
37 import org.opendaylight.yangtools.yang.model.api.ContainerSchemaNode;
38 import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
39 import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
40 import org.opendaylight.yangtools.yang.model.api.EffectiveModelContext;
41 import org.opendaylight.yangtools.yang.model.api.ListSchemaNode;
42 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
43 import org.osgi.service.component.annotations.Activate;
44 import org.osgi.service.component.annotations.Component;
45 import org.osgi.service.component.annotations.Deactivate;
46 import org.osgi.service.component.annotations.RequireServiceComponentRuntime;
47 import org.slf4j.Logger;
48 import org.slf4j.LoggerFactory;
51 * A factory for creating in-memory data trees.
56 @RequireServiceComponentRuntime
57 public final class InMemoryDataTreeFactory implements DataTreeFactory {
58 private static final Logger LOG = LoggerFactory.getLogger(InMemoryDataTreeFactory.class);
59 // FIXME: YANGTOOLS-1074: we do not want this name
60 private static final @NonNull NormalizedNode ROOT_CONTAINER =
61 ImmutableNodes.containerNode(SchemaContext.NAME);
64 public InMemoryDataTreeFactory() {
69 public DataTree create(final DataTreeConfiguration treeConfig) {
70 return new InMemoryDataTree(TreeNode.of(createRoot(treeConfig.getRootPath()),
71 Version.initial()), treeConfig, null);
75 public DataTree create(final DataTreeConfiguration treeConfig, final EffectiveModelContext initialSchemaContext) {
76 return createDataTree(treeConfig, initialSchemaContext, true);
80 public DataTree create(final DataTreeConfiguration treeConfig, final EffectiveModelContext initialSchemaContext,
81 final DistinctNodeContainer<?, ?> initialRoot) throws DataValidationFailedException {
82 final DataTree ret = createDataTree(treeConfig, initialSchemaContext, false);
84 final DataTreeModification mod = ret.takeSnapshot().newModification();
85 mod.write(YangInstanceIdentifier.empty(), initialRoot);
89 final DataTreeCandidate candidate = ret.prepare(mod);
90 ret.commit(candidate);
95 @SuppressWarnings("static-method")
97 LOG.debug("In-memory Data Tree activated");
101 @SuppressWarnings("static-method")
103 LOG.debug("In-memory Data Tree deactivated");
106 private static @NonNull DataTree createDataTree(final DataTreeConfiguration treeConfig,
107 final EffectiveModelContext initialSchemaContext, final boolean maskMandatory) {
108 final DataSchemaNode rootSchemaNode = getRootSchemaNode(initialSchemaContext, treeConfig.getRootPath());
109 final NormalizedNode rootDataNode = createRoot((DataNodeContainer)rootSchemaNode,
110 treeConfig.getRootPath());
111 return new InMemoryDataTree(TreeNode.of(rootDataNode, Version.initial()), treeConfig,
112 initialSchemaContext, rootSchemaNode, maskMandatory);
115 private static @NonNull NormalizedNode createRoot(final DataNodeContainer schemaNode,
116 final YangInstanceIdentifier path) {
117 if (path.isEmpty()) {
118 checkArgument(schemaNode instanceof ContainerLike,
119 "Conceptual tree root has to be a container, not %s", schemaNode);
120 return ROOT_CONTAINER;
123 final PathArgument arg = path.getLastPathArgument();
124 if (schemaNode instanceof ContainerSchemaNode) {
125 checkArgument(arg instanceof NodeIdentifier, "Mismatched container %s path %s", schemaNode, path);
126 return ImmutableContainerNodeBuilder.create().withNodeIdentifier((NodeIdentifier) arg).build();
127 } else if (schemaNode instanceof ListSchemaNode) {
128 // This can either be a top-level list or its individual entry
129 if (arg instanceof NodeIdentifierWithPredicates) {
130 return ImmutableNodes.mapEntryBuilder().withNodeIdentifier((NodeIdentifierWithPredicates) arg).build();
132 checkArgument(arg instanceof NodeIdentifier, "Mismatched list %s path %s", schemaNode, path);
133 return ImmutableNodes.mapNodeBuilder().withNodeIdentifier((NodeIdentifier) arg).build();
135 throw new IllegalArgumentException("Unsupported root schema " + schemaNode);
139 private static @NonNull NormalizedNode createRoot(final YangInstanceIdentifier path) {
140 if (path.isEmpty()) {
141 return ROOT_CONTAINER;
144 final PathArgument arg = path.getLastPathArgument();
145 if (arg instanceof NodeIdentifier) {
146 return ImmutableContainerNodeBuilder.create().withNodeIdentifier((NodeIdentifier) arg).build();
148 if (arg instanceof NodeIdentifierWithPredicates) {
149 return ImmutableNodes.mapEntryBuilder().withNodeIdentifier((NodeIdentifierWithPredicates) arg).build();
152 // FIXME: implement augmentations and leaf-lists
153 throw new IllegalArgumentException("Unsupported root node " + arg);
156 private static DataSchemaNode getRootSchemaNode(final EffectiveModelContext schemaContext,
157 final YangInstanceIdentifier rootPath) {
158 final DataSchemaContextTree contextTree = DataSchemaContextTree.from(schemaContext);
159 final Optional<DataSchemaContextNode<?>> rootContextNode = contextTree.findChild(rootPath);
160 checkArgument(rootContextNode.isPresent(), "Failed to find root %s in schema context", rootPath);
162 final DataSchemaNode rootSchemaNode = rootContextNode.get().getDataSchemaNode();
163 checkArgument(rootSchemaNode instanceof DataNodeContainer, "Root %s resolves to non-container type %s",
164 rootPath, rootSchemaNode);
165 return rootSchemaNode;