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.japi.Creator;
  14 import org.opendaylight.controller.cluster.datastore.messages.CloseTransactionChain;
  15 import org.opendaylight.controller.cluster.datastore.messages.CloseTransactionChainReply;
  16 import org.opendaylight.controller.cluster.datastore.messages.CreateTransaction;
  17 import org.opendaylight.controller.protobuff.messages.transaction.ShardTransactionMessages;
  18 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
  19 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  20 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  21
  22 /**
  23  * The ShardTransactionChain Actor represents a remote TransactionChain
  24  */
  25 public class ShardTransactionChain extends AbstractUntypedActor {
  26
  27     private final DOMStoreTransactionChain chain;
  28     private final SchemaContext schemaContext;
  29
  30     public ShardTransactionChain(DOMStoreTransactionChain chain, SchemaContext schemaContext) {
  31         this.chain = chain;
  32         this.schemaContext = schemaContext;
  33     }
  34
  35     @Override
  36     public void handleReceive(Object message) throws Exception {
  37         if (message instanceof CreateTransaction) {
  38             CreateTransaction createTransaction = (CreateTransaction) message;
  39             createTransaction(createTransaction);
  40         } else if (message instanceof CloseTransactionChain) {
  41             chain.close();
  42             getSender().tell(new CloseTransactionChainReply(), getSelf());
  43         }
  44     }
  45
  46     private void createTransaction(CreateTransaction createTransaction) {
  47         DOMStoreReadWriteTransaction transaction =
  48             chain.newReadWriteTransaction();
  49         ActorRef transactionActor = getContext().actorOf(ShardTransaction
  50             .props(chain, transaction, getContext().parent(), schemaContext), "shard-" + createTransaction.getTransactionId());
  51         getSender()
  52             .tell(ShardTransactionMessages.CreateTransactionReply.newBuilder()
  53                 .setTransactionActorPath(transactionActor.path().toString())
  54                 .setTransactionId(createTransaction.getTransactionId())
  55                 .build(),
  56                 getSelf());
  57     }
  58
  59     public static Props props(final DOMStoreTransactionChain chain, final SchemaContext schemaContext) {
  60         return Props.create(new Creator<ShardTransactionChain>() {
  61
  62             @Override
  63             public ShardTransactionChain create() throws Exception {
  64                 return new ShardTransactionChain(chain, schemaContext);
  65             }
  66         });
  67     }
  68 }