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;
10 import static java.util.Objects.requireNonNull;
12 import akka.japi.Procedure;
13 import org.opendaylight.controller.cluster.DataPersistenceProvider;
14 import org.opendaylight.controller.cluster.DelegatingPersistentDataProvider;
15 import org.opendaylight.controller.cluster.PersistentDataProvider;
16 import org.opendaylight.controller.cluster.raft.protobuff.client.messages.Payload;
17 import org.opendaylight.controller.cluster.raft.protobuff.client.messages.PersistentPayload;
20 * The DelegatingPersistentDataProvider used by RaftActor to override the configured persistent provider to
21 * persist ReplicatedLogEntry's based on whether or not the payload is a PersistentPayload instance.
23 * @author Thomas Pantelis
25 class RaftActorDelegatingPersistentDataProvider extends DelegatingPersistentDataProvider {
26 private final PersistentDataProvider persistentProvider;
28 RaftActorDelegatingPersistentDataProvider(final DataPersistenceProvider delegate,
29 final PersistentDataProvider persistentProvider) {
31 this.persistentProvider = requireNonNull(persistentProvider);
35 public <T> void persist(final T entry, final Procedure<T> procedure) {
36 doPersist(entry, procedure, false);
40 public <T> void persistAsync(final T entry, final Procedure<T> procedure) {
41 doPersist(entry, procedure, true);
44 private <T> void doPersist(final T entry, final Procedure<T> procedure, final boolean async) {
45 if (getDelegate().isRecoveryApplicable()) {
46 persistSuper(entry, procedure, async);
48 if (entry instanceof ReplicatedLogEntry) {
49 Payload payload = ((ReplicatedLogEntry)entry).getData();
50 if (payload instanceof PersistentPayload) {
51 // We persist the Payload but not the ReplicatedLogEntry to avoid gaps in the journal indexes
52 // on recovery if data persistence is later enabled.
54 persistentProvider.persistAsync(payload, p -> procedure.apply(entry));
56 persistentProvider.persist(payload, p -> procedure.apply(entry));
59 persistSuper(entry, procedure, async);
62 persistSuper(entry, procedure, async);
67 private <T> void persistSuper(final T object, final Procedure<T> procedure, final boolean async) {
69 super.persistAsync(object, procedure);
71 super.persist(object, procedure);