2 * Copyright (c) 2014 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
9 package org.opendaylight.controller.cluster.datastore;
11 import akka.actor.ActorRef;
12 import akka.actor.ActorSystem;
13 import akka.actor.Address;
14 import akka.cluster.Cluster;
15 import akka.cluster.ClusterEvent;
16 import com.google.common.base.Preconditions;
18 public class ClusterWrapperImpl implements ClusterWrapper {
19 private final Cluster cluster;
20 private final String currentMemberName;
21 private final Address selfAddress;
23 public ClusterWrapperImpl(ActorSystem actorSystem){
24 Preconditions.checkNotNull(actorSystem, "actorSystem should not be null");
26 cluster = Cluster.get(actorSystem);
28 Preconditions.checkState(cluster.getSelfRoles().size() > 0,
29 "No akka roles were specified\n" +
30 "One way to specify the member name is to pass a property on the command line like so\n" +
31 " -Dakka.cluster.roles.0=member-3\n" +
32 "member-3 here would be the name of the member"
35 currentMemberName = (String) cluster.getSelfRoles().toArray()[0];
36 selfAddress = cluster.selfAddress();
40 public void subscribeToMemberEvents(ActorRef actorRef){
41 Preconditions.checkNotNull(actorRef, "actorRef should not be null");
43 cluster.subscribe(actorRef, ClusterEvent.initialStateAsEvents(),
44 ClusterEvent.MemberEvent.class,
45 ClusterEvent.UnreachableMember.class);
48 public String getCurrentMemberName() {
49 return currentMemberName;
52 public Address getSelfAddress() {