opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardReadWriteTransaction.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.DeleteData;
  21 import org.opendaylight.controller.cluster.datastore.messages.MergeData;
  22 import org.opendaylight.controller.cluster.datastore.messages.ReadData;
  23 import org.opendaylight.controller.cluster.datastore.messages.ReadyTransaction;
  24 import org.opendaylight.controller.cluster.datastore.messages.WriteData;
  25 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
  26 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  27 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  28
  29 /**
  30  * @author: syedbahm
  31  * Date: 8/6/14
  32  */
  33 public class ShardReadWriteTransaction extends ShardTransaction {
  34   private final DOMStoreReadWriteTransaction transaction;
  35   private final LoggingAdapter log =
  36       Logging.getLogger(getContext().system(), this);
  37   public ShardReadWriteTransaction(DOMStoreTransactionChain transactionChain, DOMStoreReadWriteTransaction transaction, ActorRef shardActor, SchemaContext schemaContext) {
  38     super(transactionChain,  shardActor, schemaContext);
  39     this.transaction = transaction;
  40   }
  41
  42   public ShardReadWriteTransaction(DOMStoreReadWriteTransaction transaction, ActorRef shardActor, SchemaContext schemaContext) {
  43     super( shardActor, schemaContext);
  44     this.transaction = transaction;
  45   }
  46
  47   @Override
  48   public void handleReceive(Object message) throws Exception {
  49     if (ReadData.SERIALIZABLE_CLASS.equals(message.getClass())) {
  50       readData(transaction,ReadData.fromSerializable(message));
  51     }else if (WriteData.SERIALIZABLE_CLASS.equals(message.getClass())) {
  52       writeData(transaction, WriteData.fromSerializable(message, schemaContext));
  53     } else if (MergeData.SERIALIZABLE_CLASS.equals(message.getClass())) {
  54       mergeData(transaction, MergeData.fromSerializable(message, schemaContext));
  55     } else if (DeleteData.SERIALIZABLE_CLASS.equals(message.getClass())) {
  56       deleteData(transaction,DeleteData.fromSerizalizable(message));
  57     } else if (ReadyTransaction.SERIALIZABLE_CLASS.equals(message.getClass())) {
  58       readyTransaction(transaction,new ReadyTransaction());
  59     } else if(DataExists.SERIALIZABLE_CLASS.equals(message.getClass())) {
  60         dataExists(transaction, DataExists.fromSerializable(message));
  61     }else {
  62       super.handleReceive(message);
  63     }
  64   }
  65
  66   protected void closeTransaction(CloseTransaction message) {
  67     transaction.close();
  68     getSender().tell(new CloseTransactionReply().toSerializable(), getSelf());
  69     getSelf().tell(PoisonPill.getInstance(), getSelf());
  70   }
  71
  72     /**
  73      * The following method is used in unit testing only
  74      * hence the default scope.
  75      * This is done to test out failure cases.
  76      */
  77     public void forUnitTestOnlyExplicitTransactionClose() {
  78         transaction.close();
  79     }
  80 }