opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardTransactionChain.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 akka.actor.Props;
  13 import akka.actor.UntypedActor;
  14 import akka.japi.Creator;
  15 import org.opendaylight.controller.cluster.datastore.messages.CloseTransactionChain;
  16 import org.opendaylight.controller.cluster.datastore.messages.CloseTransactionChainReply;
  17 import org.opendaylight.controller.cluster.datastore.messages.CreateTransaction;
  18 import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionReply;
  19 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
  20 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  21
  22 /**
  23  * The ShardTransactionChain Actor represents a remote TransactionChain
  24  */
  25 public class ShardTransactionChain extends UntypedActor{
  26
  27   private final DOMStoreTransactionChain chain;
  28
  29   public ShardTransactionChain(DOMStoreTransactionChain chain) {
  30     this.chain = chain;
  31   }
  32
  33   @Override
  34   public void onReceive(Object message) throws Exception {
  35     if(message instanceof CreateTransaction){
  36       DOMStoreReadWriteTransaction transaction = chain.newReadWriteTransaction();
  37       ActorRef transactionActor = getContext().actorOf(ShardTransaction.props(transaction));
  38       getSender().tell(new CreateTransactionReply(transactionActor.path()), getSelf());
  39     } else if (message instanceof CloseTransactionChain){
  40       chain.close();
  41       getSender().tell(new CloseTransactionChainReply(), getSelf());
  42     }
  43   }
  44
  45   public static Props props(final DOMStoreTransactionChain chain){
  46     return Props.create(new Creator<ShardTransactionChain>(){
  47
  48       @Override
  49       public ShardTransactionChain create() throws Exception {
  50         return new ShardTransactionChain(chain);
  51       }
  52     });
  53   }
  54 }