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.cluster.datastore.messages;
10 import akka.serialization.JSerializer;
11 import com.google.common.base.Optional;
12 import com.google.common.base.Preconditions;
13 import java.util.ArrayDeque;
14 import java.util.Deque;
15 import javax.annotation.Nonnull;
16 import org.apache.commons.lang3.SerializationUtils;
17 import org.opendaylight.controller.cluster.datastore.DataStoreVersions;
18 import org.opendaylight.controller.cluster.datastore.modification.DeleteModification;
19 import org.opendaylight.controller.cluster.datastore.modification.MergeModification;
20 import org.opendaylight.controller.cluster.datastore.modification.WriteModification;
21 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
22 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
23 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
24 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModificationCursor;
27 * Specialized message transformer, which transforms a {@link ReadyLocalTransaction}
28 * into a {@link BatchedModifications} message. This serializer needs to be plugged
29 * into akka serialization to allow forwarding of ReadyLocalTransaction to remote
32 public final class ReadyLocalTransactionSerializer extends JSerializer {
34 public int identifier() {
39 public boolean includeManifest() {
44 public byte[] toBinary(final Object obj) {
45 Preconditions.checkArgument(obj instanceof ReadyLocalTransaction, "Unsupported object type %s", obj.getClass());
46 final ReadyLocalTransaction msg = (ReadyLocalTransaction) obj;
47 final BatchedModifications batched = new BatchedModifications(msg.getTransactionID(),
48 DataStoreVersions.CURRENT_VERSION, "");
49 batched.setDoCommitOnReady(msg.isDoCommitOnReady());
50 batched.setTotalMessagesSent(1);
51 batched.setReady(true);
53 msg.getModification().applyToCursor(new BatchedCursor(batched));
55 return SerializationUtils.serialize(batched);
59 public Object fromBinaryJava(final byte[] bytes, final Class<?> clazz) {
60 return SerializationUtils.deserialize(bytes);
63 private static final class BatchedCursor implements DataTreeModificationCursor {
64 private final Deque<YangInstanceIdentifier> stack = new ArrayDeque<>();
65 private final BatchedModifications message;
67 BatchedCursor(final BatchedModifications message) {
68 this.message = Preconditions.checkNotNull(message);
69 stack.push(YangInstanceIdentifier.EMPTY);
73 public void delete(final PathArgument child) {
74 message.addModification(new DeleteModification(stack.peek().node(child)));
78 public void merge(final PathArgument child, final NormalizedNode<?, ?> data) {
79 message.addModification(new MergeModification(stack.peek().node(child), data));
83 public void write(final PathArgument child, final NormalizedNode<?, ?> data) {
84 message.addModification(new WriteModification(stack.peek().node(child), data));
88 public void enter(@Nonnull final PathArgument child) {
89 stack.push(stack.peek().node(child));
93 public void enter(@Nonnull final PathArgument... path) {
94 for (PathArgument arg : path) {
100 public void enter(@Nonnull final Iterable<PathArgument> path) {
101 for (PathArgument arg : path) {
112 public void exit(final int depth) {
113 Preconditions.checkArgument(depth < stack.size(), "Stack holds only %s elements, cannot exit %s levels", stack.size(), depth);
114 for (int i = 0; i < depth; ++i) {
120 public Optional<NormalizedNode<?, ?>> readNode(@Nonnull final PathArgument child) {
121 throw new UnsupportedOperationException("Not implemented");
125 public void close() {