2 * Copyright (c) 2015 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.raft.persisted;
10 import com.google.common.collect.ImmutableList;
11 import java.io.ByteArrayOutputStream;
12 import java.io.Externalizable;
13 import java.io.IOException;
14 import java.io.ObjectInput;
15 import java.io.ObjectOutput;
16 import java.io.ObjectOutputStream;
17 import java.util.ArrayList;
18 import java.util.List;
19 import javax.annotation.Nonnull;
20 import org.opendaylight.controller.cluster.raft.protobuff.client.messages.Payload;
21 import org.opendaylight.controller.cluster.raft.protobuff.client.messages.PersistentPayload;
22 import org.slf4j.Logger;
23 import org.slf4j.LoggerFactory;
26 * Payload data for server configuration log entries.
28 * @author Thomas Pantelis
30 public final class ServerConfigurationPayload extends Payload implements PersistentPayload, MigratedSerializable {
31 private static final class Proxy implements Externalizable {
32 private static final long serialVersionUID = 1L;
34 private List<ServerInfo> serverConfig;
40 Proxy(final ServerConfigurationPayload payload) {
41 this.serverConfig = payload.getServerConfig();
45 public void writeExternal(final ObjectOutput out) throws IOException {
46 out.writeInt(serverConfig.size());
47 for (ServerInfo i : serverConfig) {
48 out.writeObject(i.getId());
49 out.writeBoolean(i.isVoting());
54 public void readExternal(final ObjectInput in) throws IOException, ClassNotFoundException {
55 final int size = in.readInt();
56 serverConfig = new ArrayList<>(size);
57 for (int i = 0; i < size; ++i) {
58 final String id = (String) in.readObject();
59 final boolean voting = in.readBoolean();
60 serverConfig.add(new ServerInfo(id, voting));
64 private Object readResolve() {
65 return new ServerConfigurationPayload(serverConfig);
69 private static final Logger LOG = LoggerFactory.getLogger(ServerConfigurationPayload.class);
70 private static final long serialVersionUID = 1L;
72 private final List<ServerInfo> serverConfig;
73 private final boolean migrated;
74 private int serializedSize = -1;
76 private ServerConfigurationPayload(final @Nonnull List<ServerInfo> serverConfig, boolean migrated) {
77 this.serverConfig = ImmutableList.copyOf(serverConfig);
78 this.migrated = migrated;
81 public ServerConfigurationPayload(final @Nonnull List<ServerInfo> serverConfig) {
82 this(serverConfig, false);
86 public static ServerConfigurationPayload createMigrated(final @Nonnull List<ServerInfo> serverConfig) {
87 return new ServerConfigurationPayload(serverConfig, true);
92 public boolean isMigrated() {
96 public @Nonnull List<ServerInfo> getServerConfig() {
102 if (serializedSize < 0) {
103 try (ByteArrayOutputStream bos = new ByteArrayOutputStream()) {
104 try (ObjectOutputStream out = new ObjectOutputStream(bos)) {
105 out.writeObject(writeReplace());
108 serializedSize = bos.toByteArray().length;
109 } catch (IOException e) {
111 LOG.error("Error serializing", e);
115 return serializedSize;
119 public String toString() {
120 return "ServerConfigurationPayload [serverConfig=" + serverConfig + "]";
124 public Object writeReplace() {
125 return new Proxy(this);