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.controller.cluster.raft.persisted;
10 import static java.util.Objects.requireNonNull;
12 import java.io.Externalizable;
13 import java.io.IOException;
14 import java.io.ObjectInput;
15 import java.io.ObjectOutput;
16 import java.io.Serializable;
17 import org.apache.commons.lang3.SerializationUtils;
18 import org.opendaylight.controller.cluster.raft.ReplicatedLogEntry;
19 import org.opendaylight.controller.cluster.raft.messages.Payload;
22 * A {@link ReplicatedLogEntry} implementation.
24 * @author Thomas Pantelis
26 public final class SimpleReplicatedLogEntry implements ReplicatedLogEntry, Serializable {
27 @Deprecated(since = "7.0.0", forRemoval = true)
28 private static final class Proxy implements Externalizable {
30 private static final long serialVersionUID = 1L;
36 // checkstyle flags the public modifier as redundant which really doesn't make sense since it clearly isn't
37 // redundant. It is explicitly needed for Java serialization to be able to create instances via reflection.
38 @SuppressWarnings("checkstyle:RedundantModifier")
43 Proxy(final SimpleReplicatedLogEntry replicatedLogEntry) {
44 index = replicatedLogEntry.getIndex();
45 term = replicatedLogEntry.getTerm();
46 data = replicatedLogEntry.getData();
50 public void writeExternal(final ObjectOutput out) throws IOException {
53 out.writeObject(data);
57 public void readExternal(final ObjectInput in) throws IOException, ClassNotFoundException {
58 index = in.readLong();
60 data = (Payload) in.readObject();
64 private Object readResolve() {
65 return new SimpleReplicatedLogEntry(index, term, data);
70 private static final long serialVersionUID = 1L;
71 // Estimate to how big the proxy is. Note this includes object stream overhead, so it is a bit conservative.
72 private static final int PROXY_SIZE = SerializationUtils.serialize(new LE((Void) null)).length;
74 private final long index;
75 private final long term;
76 private final Payload payload;
77 private boolean persistencePending;
80 * Constructs an instance.
82 * @param index the index
83 * @param term the term
84 * @param payload the payload
86 public SimpleReplicatedLogEntry(final long index, final long term, final Payload payload) {
89 this.payload = requireNonNull(payload);
93 public Payload getData() {
98 public long getTerm() {
103 public long getIndex() {
109 return payload.size();
113 public int serializedSize() {
114 return PROXY_SIZE + payload.serializedSize();
118 public boolean isPersistencePending() {
119 return persistencePending;
123 public void setPersistencePending(final boolean pending) {
124 persistencePending = pending;
127 private Object writeReplace() {
132 public int hashCode() {
133 final int prime = 31;
135 result = prime * result + payload.hashCode();
136 result = prime * result + (int) (index ^ index >>> 32);
137 result = prime * result + (int) (term ^ term >>> 32);
142 public boolean equals(final Object obj) {
146 if (obj == null || getClass() != obj.getClass()) {
150 var other = (SimpleReplicatedLogEntry) obj;
151 return index == other.index && term == other.term && payload.equals(other.payload);
155 public String toString() {
156 return "SimpleReplicatedLogEntry [index=" + index + ", term=" + term + ", payload=" + payload + "]";