/*
 * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */

package org.opendaylight.controller.cluster.datastore;

import akka.actor.ActorRef;
import akka.actor.Props;
import akka.actor.UntypedActor;
import akka.japi.Creator;
import org.opendaylight.controller.cluster.datastore.messages.CreateTransaction;
import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionReply;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;

/**
 * The ShardTransactionChain Actor represents a remote TransactionChain
 */
public class ShardTransactionChain extends UntypedActor{

  private final DOMStoreTransactionChain chain;

  public ShardTransactionChain(DOMStoreTransactionChain chain) {
    this.chain = chain;
  }

  @Override
  public void onReceive(Object message) throws Exception {
    if(message instanceof CreateTransaction){
      DOMStoreReadWriteTransaction transaction = chain.newReadWriteTransaction();
      ActorRef transactionActor = getContext().actorOf(ShardTransaction.props(transaction));
      getSender().tell(new CreateTransactionReply(transactionActor.path()), getSelf());
    }
  }

  public static Props props(final DOMStoreTransactionChain chain){
    return Props.create(new Creator<ShardTransactionChain>(){

      @Override
      public ShardTransactionChain create() throws Exception {
        return new ShardTransactionChain(chain);
      }
    });
  }
}