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.controller.md.sal.binding.impl;
10 import java.util.ArrayList;
11 import java.util.Collection;
12 import java.util.List;
13 import java.util.Map.Entry;
14 import org.opendaylight.controller.md.sal.binding.api.DataObjectModification;
15 import org.opendaylight.controller.md.sal.binding.api.DataTreeIdentifier;
16 import org.opendaylight.controller.md.sal.binding.api.DataTreeModification;
17 import org.opendaylight.controller.md.sal.common.api.data.LogicalDatastoreType;
18 import org.opendaylight.mdsal.binding.dom.codec.api.BindingDataObjectCodecTreeNode;
19 import org.opendaylight.yangtools.yang.binding.DataObject;
20 import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;
21 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeCandidate;
24 * Lazily translated {@link DataTreeModification} based on {@link DataTreeCandidate}.
26 * {@link DataTreeModification} represents Data tree change event,
27 * but whole tree is not translated or resolved eagerly, but only child nodes
28 * which are directly accessed by user of data object modification.
32 class LazyDataTreeModification<T extends DataObject> implements DataTreeModification<T> {
34 private final DataTreeIdentifier<T> path;
35 private final DataObjectModification<T> rootNode;
37 LazyDataTreeModification(final LogicalDatastoreType datastoreType, final InstanceIdentifier<T> path,
38 final BindingDataObjectCodecTreeNode<T> codec, final DataTreeCandidate domChange) {
39 this.path = new DataTreeIdentifier<>(datastoreType, path);
40 this.rootNode = LazyDataObjectModification.create(codec, domChange.getRootNode());
44 public DataObjectModification<T> getRootNode() {
49 public DataTreeIdentifier<T> getRootPath() {
53 @SuppressWarnings({"unchecked", "rawtypes"})
54 static <T extends DataObject> DataTreeModification<T> create(final BindingToNormalizedNodeCodec codec,
55 final DataTreeCandidate domChange, final LogicalDatastoreType datastoreType) {
56 final Entry<InstanceIdentifier<?>, BindingDataObjectCodecTreeNode<?>> codecCtx =
57 codec.getSubtreeCodec(domChange.getRootPath());
58 return new LazyDataTreeModification(datastoreType, codecCtx.getKey(), codecCtx.getValue(), domChange);
61 static <T extends DataObject> Collection<DataTreeModification<T>> from(final BindingToNormalizedNodeCodec codec,
62 final Collection<DataTreeCandidate> domChanges, final LogicalDatastoreType datastoreType) {
63 final List<DataTreeModification<T>> result = new ArrayList<>(domChanges.size());
64 for (final DataTreeCandidate domChange : domChanges) {
65 result.add(LazyDataTreeModification.<T>create(codec, domChange, datastoreType));
71 public String toString() {
72 return getClass().getSimpleName() + "{path = " + path + ", rootNode = " + rootNode + "}";