2 * Copyright (c) 2014 Brocade Communications 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.cluster.datastore.node.utils.stream;
10 import java.io.DataInput;
11 import java.io.DataOutput;
12 import java.io.IOException;
13 import java.util.Optional;
14 import org.eclipse.jdt.annotation.NonNull;
15 import org.eclipse.jdt.annotation.Nullable;
16 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
17 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
20 * Provides various utility methods for serialization and de-serialization.
22 * @author Thomas Pantelis
24 public final class SerializationUtils {
25 private SerializationUtils() {
30 public interface Applier<T> {
31 void apply(T instance, YangInstanceIdentifier path, NormalizedNode<?, ?> node);
34 public static Optional<NormalizedNode<?, ?>> readNormalizedNode(final DataInput in) throws IOException {
35 if (!in.readBoolean()) {
36 return Optional.empty();
38 return Optional.of(NormalizedNodeInputOutput.newDataInput(in).readNormalizedNode());
41 public static void writeNormalizedNode(final DataOutput out, final @Nullable NormalizedNode<?, ?> node)
44 out.writeBoolean(true);
46 try (NormalizedNodeDataOutput stream = NormalizedNodeInputOutput.newDataOutput(out)) {
47 stream.writeNormalizedNode(node);
50 out.writeBoolean(false);
54 public static void writeNormalizedNode(final DataOutput out, final NormalizedNodeStreamVersion version,
55 final @Nullable NormalizedNode<?, ?> node) throws IOException {
57 out.writeBoolean(true);
59 try (NormalizedNodeDataOutput stream = NormalizedNodeInputOutput.newDataOutput(out, version)) {
60 stream.writeNormalizedNode(node);
63 out.writeBoolean(false);
67 public static YangInstanceIdentifier readPath(final DataInput in) throws IOException {
68 return NormalizedNodeInputOutput.newDataInput(in).readYangInstanceIdentifier();
71 public static void writePath(final DataOutput out, final @NonNull YangInstanceIdentifier path)
73 try (NormalizedNodeDataOutput stream = NormalizedNodeInputOutput.newDataOutput(out)) {
74 stream.writeYangInstanceIdentifier(path);
78 public static void writePath(final DataOutput out, final NormalizedNodeStreamVersion version,
79 final @NonNull YangInstanceIdentifier path) throws IOException {
80 try (NormalizedNodeDataOutput stream = NormalizedNodeInputOutput.newDataOutput(out, version)) {
81 stream.writeYangInstanceIdentifier(path);
85 public static <T> void readNodeAndPath(final DataInput in, final T instance, final Applier<T> applier)
87 final NormalizedNodeDataInput stream = NormalizedNodeInputOutput.newDataInput(in);
88 NormalizedNode<?, ?> node = stream.readNormalizedNode();
89 YangInstanceIdentifier path = stream.readYangInstanceIdentifier();
90 applier.apply(instance, path, node);
93 public static void writeNodeAndPath(final DataOutput out, final YangInstanceIdentifier path,
94 final NormalizedNode<?, ?> node) throws IOException {
95 try (NormalizedNodeDataOutput stream = NormalizedNodeInputOutput.newDataOutput(out)) {
96 stream.writeNormalizedNode(node);
97 stream.writeYangInstanceIdentifier(path);
101 public static <T> void readPathAndNode(final DataInput in, final T instance, final Applier<T> applier)
103 final NormalizedNodeDataInput stream = NormalizedNodeInputOutput.newDataInput(in);
104 YangInstanceIdentifier path = stream.readYangInstanceIdentifier();
105 NormalizedNode<?, ?> node = stream.readNormalizedNode();
106 applier.apply(instance, path, node);
109 public static void writePathAndNode(final DataOutput out, final YangInstanceIdentifier path,
110 final NormalizedNode<?, ?> node) throws IOException {
111 try (NormalizedNodeDataOutput stream = NormalizedNodeInputOutput.newDataOutput(out)) {
112 stream.writeYangInstanceIdentifier(path);
113 stream.writeNormalizedNode(node);