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.access.concepts;
10 import static java.util.Objects.requireNonNull;
12 import com.google.common.base.MoreObjects;
13 import java.io.Serial;
14 import java.io.Serializable;
15 import org.eclipse.jdt.annotation.NonNull;
16 import org.opendaylight.yangtools.concepts.Immutable;
18 public abstract class Envelope<T extends Message<?, ?>> implements Immutable, Serializable {
20 private static final long serialVersionUID = 1L;
22 private final @NonNull T message;
23 private final long txSequence;
24 private final long sessionId;
26 Envelope(final T message, final long sessionId, final long txSequence) {
27 this.message = requireNonNull(message);
28 this.sessionId = sessionId;
29 this.txSequence = txSequence;
33 * Get the enclosed message.
35 * @return enclose message
37 public @NonNull T getMessage() {
42 * Get the message transmission sequence of this envelope.
44 * @return Message sequence
46 public long getTxSequence() {
51 * Get the session identifier.
53 * @return Session identifier
55 public long getSessionId() {
60 public String toString() {
61 return MoreObjects.toStringHelper(Envelope.class).add("sessionId", Long.toHexString(sessionId))
62 .add("txSequence", Long.toHexString(txSequence)).add("message", message).toString();
66 final Object writeReplace() {
70 abstract AbstractEnvelopeProxy<T> createProxy();