org.opendaylight.controller.cluster.datastore.ClusterWrapperImpl.java Source code

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Here is the source code for org.opendaylight.controller.cluster.datastore.ClusterWrapperImpl.java

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/*
 * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */

package org.opendaylight.controller.cluster.datastore;

import akka.actor.ActorRef;
import akka.actor.ActorSystem;
import akka.actor.Address;
import akka.cluster.Cluster;
import akka.cluster.ClusterEvent;
import com.google.common.base.Preconditions;
import org.opendaylight.controller.cluster.access.concepts.MemberName;

public class ClusterWrapperImpl implements ClusterWrapper {
    private final Cluster cluster;
    private final MemberName currentMemberName;
    private final Address selfAddress;

    public ClusterWrapperImpl(ActorSystem actorSystem) {
        Preconditions.checkNotNull(actorSystem, "actorSystem should not be null");

        cluster = Cluster.get(actorSystem);

        Preconditions.checkState(cluster.getSelfRoles().size() > 0,
                "No akka roles were specified\n"
                        + "One way to specify the member name is to pass a property on the command line like so\n"
                        + "   -Dakka.cluster.roles.0=member-3\n" + "member-3 here would be the name of the member");

        currentMemberName = MemberName.forName(cluster.getSelfRoles().iterator().next());
        selfAddress = cluster.selfAddress();
    }

    @Override
    public void subscribeToMemberEvents(ActorRef actorRef) {
        Preconditions.checkNotNull(actorRef, "actorRef should not be null");

        cluster.subscribe(actorRef, ClusterEvent.initialStateAsEvents(), ClusterEvent.MemberEvent.class,
                ClusterEvent.UnreachableMember.class, ClusterEvent.ReachableMember.class);
    }

    @Override
    public MemberName getCurrentMemberName() {
        return currentMemberName;
    }

    @Override
    public Address getSelfAddress() {
        return selfAddress;
    }
}