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.cluster.datastore.messages.CreateTransactionReply;
  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.getClass().equals(CreateTransaction.SERIALIZABLE_CLASS)) {
  38             CreateTransaction createTransaction = CreateTransaction.fromSerializable( message);
  39             createTransaction(createTransaction);
  40         } else if (message.getClass().equals(CloseTransactionChain.SERIALIZABLE_CLASS)) {
  41             chain.close();
  42             getSender().tell(new CloseTransactionChainReply().toSerializable(), getSelf());
  43         }else{
  44           throw new Exception("Not recognized message recieved="+message);
  45         }
  46     }
  47
  48     private void createTransaction(CreateTransaction createTransaction) {
  49         DOMStoreReadWriteTransaction transaction =
  50             chain.newReadWriteTransaction();
  51         ActorRef transactionActor = getContext().actorOf(ShardTransaction
  52             .props(chain, transaction, getContext().parent(), schemaContext), "shard-" + createTransaction.getTransactionId());
  53         getSender()
  54             .tell(new CreateTransactionReply(transactionActor.path().toString(),createTransaction.getTransactionId()).toSerializable(),
  55                 getSelf());
  56     }
  57
  58     public static Props props(final DOMStoreTransactionChain chain, final SchemaContext schemaContext) {
  59         return Props.create(new Creator<ShardTransactionChain>() {
  60
  61             @Override
  62             public ShardTransactionChain create() throws Exception {
  63                 return new ShardTransactionChain(chain, schemaContext);
  64             }
  65         });
  66     }
  67 }