opendaylight/md-sal/sal-clustering-commons/src/main/java/org/opendaylight/controller/cluster/PersistentDataProvider.java

   1 /*
   2  * Copyright (c) 2015 Cisco 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;
   9
  10 import akka.japi.Procedure;
  11 import akka.persistence.SnapshotSelectionCriteria;
  12 import akka.persistence.UntypedPersistentActor;
  13 import com.google.common.base.Preconditions;
  14
  15 /**
  16  * A DataPersistenceProvider implementation with persistence enabled.
  17  */
  18 public class PersistentDataProvider implements DataPersistenceProvider {
  19
  20     private final UntypedPersistentActor persistentActor;
  21
  22     public PersistentDataProvider(UntypedPersistentActor persistentActor) {
  23         this.persistentActor = Preconditions.checkNotNull(persistentActor, "persistentActor can't be null");
  24     }
  25
  26     @Override
  27     public boolean isRecoveryApplicable() {
  28         return true;
  29     }
  30
  31     @Override
  32     public <T> void persist(T entry, Procedure<T> procedure) {
  33         persistentActor.persist(entry, procedure);
  34     }
  35
  36     @Override
  37     public void saveSnapshot(Object snapshot) {
  38         persistentActor.saveSnapshot(snapshot);
  39     }
  40
  41     @Override
  42     public void deleteSnapshots(SnapshotSelectionCriteria criteria) {
  43         persistentActor.deleteSnapshots(criteria);
  44     }
  45
  46     @Override
  47     public void deleteMessages(long sequenceNumber) {
  48         persistentActor.deleteMessages(sequenceNumber);
  49     }
  50
  51     @Override
  52     public long getLastSequenceNumber() {
  53         return persistentActor.lastSequenceNr();
  54     }
  55 }