2 * Copyright (c) 2014 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.datastore.utils;
11 import java.util.concurrent.Callable;
12 import java.util.concurrent.ConcurrentHashMap;
13 import com.google.common.collect.Maps;
14 import scala.concurrent.Future;
15 import akka.dispatch.Futures;
16 import akka.japi.Procedure;
17 import akka.persistence.PersistentConfirmation;
18 import akka.persistence.PersistentId;
19 import akka.persistence.PersistentImpl;
20 import akka.persistence.PersistentRepr;
21 import akka.persistence.journal.japi.AsyncWriteJournal;
23 public class InMemoryJournal extends AsyncWriteJournal {
25 private static Map<String, Map<Long, Object>> journals = new ConcurrentHashMap<>();
27 public static void addEntry(String persistenceId, long sequenceNr, Object data) {
28 Map<Long, Object> journal = journals.get(persistenceId);
30 journal = Maps.newLinkedHashMap();
31 journals.put(persistenceId, journal);
34 journal.put(sequenceNr, data);
37 public static void clear() {
42 public Future<Void> doAsyncReplayMessages(final String persistenceId, long fromSequenceNr,
43 long toSequenceNr, long max, final Procedure<PersistentRepr> replayCallback) {
44 return Futures.future(new Callable<Void>() {
46 public Void call() throws Exception {
47 Map<Long, Object> journal = journals.get(persistenceId);
52 for (Map.Entry<Long,Object> entry : journal.entrySet()) {
53 PersistentRepr persistentMessage =
54 new PersistentImpl(entry.getValue(), entry.getKey(), persistenceId, false, null, null);
55 replayCallback.apply(persistentMessage);
60 }, context().dispatcher());
64 public Future<Long> doAsyncReadHighestSequenceNr(String persistenceId, long fromSequenceNr) {
65 return Futures.successful(new Long(0));
69 public Future<Void> doAsyncWriteMessages(Iterable<PersistentRepr> messages) {
70 return Futures.successful(null);
74 public Future<Void> doAsyncWriteConfirmations(Iterable<PersistentConfirmation> confirmations) {
75 return Futures.successful(null);
79 public Future<Void> doAsyncDeleteMessages(Iterable<PersistentId> messageIds, boolean permanent) {
80 return Futures.successful(null);
84 public Future<Void> doAsyncDeleteMessagesTo(String persistenceId, long toSequenceNr, boolean permanent) {
85 return Futures.successful(null);