opendaylight/md-sal/sal-distributed-datastore/src/test/java/org/opendaylight/controller/cluster/datastore/utils/InMemoryJournal.java

   1 /*
   2  * Copyright (c) 2014 Brocade Communications Systems, Inc. and others.  All rights reserved.
   3  *
   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
   7  */
   8 package org.opendaylight.controller.cluster.datastore.utils;
   9
  10 import java.util.Map;
  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;
  22
  23 public class InMemoryJournal extends AsyncWriteJournal {
  24
  25     private static Map<String, Map<Long, Object>> journals = new ConcurrentHashMap<>();
  26
  27     public static void addEntry(String persistenceId, long sequenceNr, Object data) {
  28         Map<Long, Object> journal = journals.get(persistenceId);
  29         if(journal == null) {
  30             journal = Maps.newLinkedHashMap();
  31             journals.put(persistenceId, journal);
  32         }
  33
  34         journal.put(sequenceNr, data);
  35     }
  36
  37     public static void clear() {
  38         journals.clear();
  39     }
  40
  41     @Override
  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>() {
  45             @Override
  46             public Void call() throws Exception {
  47                 Map<Long, Object> journal = journals.get(persistenceId);
  48                 if(journal == null) {
  49                     return null;
  50                 }
  51
  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);
  56                 }
  57
  58                 return null;
  59             }
  60         }, context().dispatcher());
  61     }
  62
  63     @Override
  64     public Future<Long> doAsyncReadHighestSequenceNr(String persistenceId, long fromSequenceNr) {
  65         return Futures.successful(new Long(0));
  66     }
  67
  68     @Override
  69     public Future<Void> doAsyncWriteMessages(Iterable<PersistentRepr> messages) {
  70         return Futures.successful(null);
  71     }
  72
  73     @Override
  74     public Future<Void> doAsyncWriteConfirmations(Iterable<PersistentConfirmation> confirmations) {
  75         return Futures.successful(null);
  76     }
  77
  78     @Override
  79     public Future<Void> doAsyncDeleteMessages(Iterable<PersistentId> messageIds, boolean permanent) {
  80         return Futures.successful(null);
  81     }
  82
  83     @Override
  84     public Future<Void> doAsyncDeleteMessagesTo(String persistenceId, long toSequenceNr, boolean permanent) {
  85         return Futures.successful(null);
  86     }
  87 }