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.Serializable;
14 import org.eclipse.jdt.annotation.NonNull;
15 import org.opendaylight.yangtools.concepts.Immutable;
17 public abstract class Envelope<T extends Message<?, ?>> implements Immutable, Serializable {
18 private static final long serialVersionUID = 1L;
20 private final @NonNull T message;
21 private final long txSequence;
22 private final long sessionId;
24 Envelope(final T message, final long sessionId, final long txSequence) {
25 this.message = requireNonNull(message);
26 this.sessionId = sessionId;
27 this.txSequence = txSequence;
31 * Get the enclosed message.
33 * @return enclose message
35 public @NonNull T getMessage() {
40 * Get the message transmission sequence of this envelope.
42 * @return Message sequence
44 public long getTxSequence() {
49 * Get the session identifier.
51 * @return Session identifier
53 public long getSessionId() {
58 public String toString() {
59 return MoreObjects.toStringHelper(Envelope.class).add("sessionId", Long.toHexString(sessionId))
60 .add("txSequence", Long.toHexString(txSequence)).add("message", message).toString();
63 final Object writeReplace() {
67 abstract AbstractEnvelopeProxy<T> createProxy();