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

   1 /*
   2  *
   3  *  Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
   4  *
   5  *  This program and the accompanying materials are made available under the
   6  *  terms of the Eclipse Public License v1.0 which accompanies this distribution,
   7  *  and is available at http://www.eclipse.org/legal/epl-v10.html
   8  *
   9  */
  10
  11 package org.opendaylight.controller.cluster.datastore;
  12
  13 import akka.actor.ActorRef;
  14 import akka.actor.PoisonPill;
  15 import akka.event.Logging;
  16 import akka.event.LoggingAdapter;
  17 import org.opendaylight.controller.cluster.datastore.messages.CloseTransaction;
  18 import org.opendaylight.controller.cluster.datastore.messages.CloseTransactionReply;
  19 import org.opendaylight.controller.cluster.datastore.messages.DataExists;
  20 import org.opendaylight.controller.cluster.datastore.messages.ReadData;
  21 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
  22 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  23 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  24
  25 /**
  26  * @author: syedbahm
  27  * Date: 8/6/14
  28  */
  29 public class ShardReadTransaction extends ShardTransaction {
  30   private final DOMStoreReadTransaction transaction;
  31   private final LoggingAdapter log =
  32       Logging.getLogger(getContext().system(), this);
  33
  34   public ShardReadTransaction(DOMStoreReadTransaction transaction, ActorRef shardActor, SchemaContext schemaContext) {
  35     super(shardActor, schemaContext);
  36     this.transaction = transaction;
  37
  38   }
  39
  40   public ShardReadTransaction(DOMStoreTransactionChain transactionChain, DOMStoreReadTransaction transaction, ActorRef shardActor, SchemaContext schemaContext) {
  41     super(transactionChain, shardActor, schemaContext);
  42     this.transaction = transaction;
  43   }
  44
  45   @Override
  46   public void handleReceive(Object message) throws Exception {
  47     if (ReadData.SERIALIZABLE_CLASS.equals(message.getClass())) {
  48         readData(transaction, ReadData.fromSerializable(message));
  49     } else if(DataExists.SERIALIZABLE_CLASS.equals(message.getClass())) {
  50         dataExists(transaction, DataExists.fromSerializable(message));
  51     } else {
  52       super.handleReceive(message);
  53     }
  54   }
  55   protected void closeTransaction(CloseTransaction message) {
  56     transaction.close();
  57     getSender().tell(new CloseTransactionReply().toSerializable(), getSelf());
  58     getSelf().tell(PoisonPill.getInstance(), getSelf());
  59   }
  60
  61   //default scope test method to check if we get correct exception
  62   void forUnitTestOnlyExplicitTransactionClose(){
  63       transaction.close();
  64   }
  65
  66 }