2 * Copyright (c) 2016 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.persisted;
10 import com.google.common.base.MoreObjects;
11 import com.google.common.collect.ImmutableList;
12 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
13 import java.io.Externalizable;
14 import java.io.IOException;
15 import java.io.ObjectInput;
16 import java.io.ObjectOutput;
17 import java.util.ArrayList;
18 import java.util.Collection;
19 import java.util.List;
21 public final class FrontendShardDataTreeSnapshotMetadata extends
22 ShardDataTreeSnapshotMetadata<FrontendShardDataTreeSnapshotMetadata> {
24 private static final class Proxy implements Externalizable {
25 private static final long serialVersionUID = 1L;
27 private List<FrontendClientMetadata> clients;
29 // checkstyle flags the public modifier as redundant which really doesn't make sense since it clearly isn't
30 // redundant. It is explicitly needed for Java serialization to be able to create instances via reflection.
31 @SuppressWarnings("checkstyle:RedundantModifier")
36 Proxy(final FrontendShardDataTreeSnapshotMetadata metadata) {
37 this.clients = metadata.getClients();
41 public void writeExternal(final ObjectOutput out) throws IOException {
42 out.writeInt(clients.size());
43 for (final FrontendClientMetadata c : clients) {
49 public void readExternal(final ObjectInput in) throws IOException {
50 final int size = in.readInt();
51 final List<FrontendClientMetadata> readedClients = new ArrayList<>(size);
52 for (int i = 0; i < size ; ++i) {
53 readedClients.add(FrontendClientMetadata.readFrom(in));
55 this.clients = ImmutableList.copyOf(readedClients);
58 private Object readResolve() {
59 return new FrontendShardDataTreeSnapshotMetadata(clients);
63 private static final long serialVersionUID = 1L;
65 @SuppressFBWarnings(value = "SE_BAD_FIELD", justification = "This field is not Serializable but this class "
66 + "implements writeReplace to delegate serialization to a Proxy class and thus instances of this class "
67 + "aren't serialized. FindBugs does not recognize this.")
68 private final List<FrontendClientMetadata> clients;
70 public FrontendShardDataTreeSnapshotMetadata(final Collection<FrontendClientMetadata> clients) {
71 this.clients = ImmutableList.copyOf(clients);
74 public List<FrontendClientMetadata> getClients() {
79 protected Externalizable externalizableProxy() {
80 return new Proxy(this);
84 public Class<FrontendShardDataTreeSnapshotMetadata> getType() {
85 return FrontendShardDataTreeSnapshotMetadata.class;
89 public String toString() {
90 return MoreObjects.toStringHelper(FrontendShardDataTreeSnapshotMetadata.class).add("clients", clients)