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.client.messages;
10 import akka.dispatch.ControlMessage;
11 import java.io.Serializable;
12 import org.opendaylight.controller.cluster.raft.base.messages.EmptyExternalizableProxy;
15 * Message sent to a raft actor to shutdown gracefully. If it's the leader it will transfer leadership to a
16 * follower. As its last act, the actor self-destructs via a PoisonPill. This message should only be used with
17 * Patterns.gracefulStop().
19 * @author Thomas Pantelis
21 public final class Shutdown implements Serializable, ControlMessage {
22 private static final long serialVersionUID = 1L;
23 public static final Shutdown INSTANCE = new Shutdown();
29 private Object writeReplace() {
33 private static class Proxy extends EmptyExternalizableProxy {
34 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")