2 * Copyright (c) 2022 PANTHEON.tech, s.r.o. 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.raft.messages;
10 import static com.google.common.base.Verify.verifyNotNull;
11 import static java.util.Objects.requireNonNull;
13 import com.google.common.collect.ImmutableList;
14 import java.io.Externalizable;
15 import java.io.IOException;
16 import java.io.ObjectInput;
17 import java.io.ObjectOutput;
18 import org.opendaylight.controller.cluster.raft.RaftVersions;
19 import org.opendaylight.controller.cluster.raft.ReplicatedLogEntry;
20 import org.opendaylight.controller.cluster.raft.persisted.SimpleReplicatedLogEntry;
21 import org.opendaylight.yangtools.concepts.WritableObjects;
24 * Argon serialization proxy for {@link AppendEntries}.
26 final class AE implements Externalizable {
28 private static final long serialVersionUID = 1L;
30 private AppendEntries appendEntries;
32 @SuppressWarnings("checkstyle:RedundantModifier")
37 AE(final AppendEntries appendEntries) {
38 this.appendEntries = requireNonNull(appendEntries);
42 public void writeExternal(final ObjectOutput out) throws IOException {
43 out.writeShort(appendEntries.getLeaderRaftVersion());
44 WritableObjects.writeLong(out, appendEntries.getTerm());
45 out.writeObject(appendEntries.getLeaderId());
47 WritableObjects.writeLongs(out, appendEntries.getPrevLogTerm(), appendEntries.getPrevLogIndex());
48 WritableObjects.writeLongs(out, appendEntries.getLeaderCommit(), appendEntries.getReplicatedToAllIndex());
50 out.writeShort(appendEntries.getPayloadVersion());
52 final var entries = appendEntries.getEntries();
53 out.writeInt(entries.size());
54 for (var e : entries) {
55 WritableObjects.writeLongs(out, e.getIndex(), e.getTerm());
56 out.writeObject(e.getData());
59 out.writeObject(appendEntries.leaderAddress());
63 public void readExternal(final ObjectInput in) throws IOException, ClassNotFoundException {
64 short leaderRaftVersion = in.readShort();
65 long term = WritableObjects.readLong(in);
66 String leaderId = (String) in.readObject();
68 byte hdr = WritableObjects.readLongHeader(in);
69 long prevLogTerm = WritableObjects.readFirstLong(in, hdr);
70 long prevLogIndex = WritableObjects.readSecondLong(in, hdr);
72 hdr = WritableObjects.readLongHeader(in);
73 long leaderCommit = WritableObjects.readFirstLong(in, hdr);
74 long replicatedToAllIndex = WritableObjects.readSecondLong(in, hdr);
75 short payloadVersion = in.readShort();
77 int size = in.readInt();
78 var entries = ImmutableList.<ReplicatedLogEntry>builderWithExpectedSize(size);
79 for (int i = 0; i < size; i++) {
80 hdr = WritableObjects.readLongHeader(in);
81 entries.add(new SimpleReplicatedLogEntry(WritableObjects.readFirstLong(in, hdr),
82 WritableObjects.readSecondLong(in, hdr), (Payload) in.readObject()));
85 String leaderAddress = (String)in.readObject();
87 appendEntries = new AppendEntries(term, leaderId, prevLogIndex, prevLogTerm, entries.build(), leaderCommit,
88 replicatedToAllIndex, payloadVersion, RaftVersions.CURRENT_VERSION, leaderRaftVersion,
93 private Object readResolve() {
94 return verifyNotNull(appendEntries);