opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardReadTransaction.java

   1 /*
   2  * Copyright (c) 2014 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
   9 package org.opendaylight.controller.cluster.datastore;
  10
  11 import akka.actor.ActorRef;
  12 import com.google.common.base.Preconditions;
  13 import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard.ShardStats;
  14 import org.opendaylight.controller.cluster.datastore.messages.DataExists;
  15 import org.opendaylight.controller.cluster.datastore.messages.ReadData;
  16
  17 /**
  18  * Actor for a shard read transaction.
  19  *
  20  * @author: syedbahm
  21  */
  22 public class ShardReadTransaction extends ShardTransaction {
  23     private final AbstractShardDataTreeTransaction<?> transaction;
  24
  25     public ShardReadTransaction(AbstractShardDataTreeTransaction<?> transaction, ActorRef shardActor,
  26             ShardStats shardStats) {
  27         super(shardActor, shardStats, transaction.getIdentifier());
  28         this.transaction = Preconditions.checkNotNull(transaction);
  29     }
  30
  31     @Override
  32     public void handleReceive(Object message) {
  33         if (ReadData.isSerializedType(message)) {
  34             readData(transaction, ReadData.fromSerializable(message));
  35         } else if (DataExists.isSerializedType(message)) {
  36             dataExists(transaction, DataExists.fromSerializable(message));
  37         } else {
  38             super.handleReceive(message);
  39         }
  40     }
  41
  42     @Override
  43     protected AbstractShardDataTreeTransaction<?> getDOMStoreTransaction() {
  44         return transaction;
  45     }
  46
  47     @Override
  48     protected boolean returnCloseTransactionReply() {
  49         return false;
  50     }
  51 }