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.client;
10 import akka.actor.ActorRef;
11 import akka.actor.PoisonPill;
12 import akka.persistence.AbstractPersistentActor;
13 import org.opendaylight.controller.cluster.access.concepts.FrontendIdentifier;
14 import org.slf4j.Logger;
15 import org.slf4j.LoggerFactory;
18 * Frontend actor which takes care of persisting generations and creates an appropriate ClientIdentifier.
20 public abstract class AbstractClientActor extends AbstractPersistentActor {
21 private static final Logger LOG = LoggerFactory.getLogger(AbstractClientActor.class);
23 private AbstractClientActorBehavior<?> currentBehavior;
25 protected AbstractClientActor(final FrontendIdentifier frontendId) {
26 currentBehavior = new RecoveringClientActorBehavior(this, frontendId);
30 public final String persistenceId() {
31 return currentBehavior.persistenceId();
35 public void postStop() throws Exception {
36 if (currentBehavior != null) {
37 currentBehavior.close();
43 private void switchBehavior(final AbstractClientActorBehavior<?> nextBehavior) {
44 if (!currentBehavior.equals(nextBehavior)) {
45 if (nextBehavior == null) {
46 LOG.debug("{}: shutting down", persistenceId());
47 self().tell(PoisonPill.getInstance(), ActorRef.noSender());
49 LOG.debug("{}: switched from {} to {}", persistenceId(), currentBehavior, nextBehavior);
52 currentBehavior.close();
53 currentBehavior = nextBehavior;
58 public Receive createReceive() {
59 return receiveBuilder().matchAny(this::onReceiveCommand).build();
63 public Receive createReceiveRecover() {
64 return receiveBuilder().matchAny(this::onReceiveRecover).build();
67 private void onReceiveCommand(final Object command) {
68 if (command == null) {
69 LOG.debug("{}: ignoring null command", persistenceId());
73 if (currentBehavior != null) {
74 switchBehavior(currentBehavior.onReceiveCommand(command));
76 LOG.debug("{}: shutting down, ignoring command {}", persistenceId(), command);
80 private void onReceiveRecover(final Object recover) {
81 switchBehavior(currentBehavior.onReceiveRecover(recover));
84 protected abstract ClientActorBehavior<?> initialBehavior(ClientActorContext context);
86 protected abstract ClientActorConfig getClientActorConfig();