opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardTransactionFactory.java

   1 /*
   2  * Copyright (c) 2015 Brocade Communications 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 package org.opendaylight.controller.cluster.datastore;
   9
  10 import akka.actor.ActorRef;
  11 import akka.actor.UntypedActorContext;
  12 import com.google.common.base.Preconditions;
  13 import org.opendaylight.controller.cluster.datastore.identifiers.ShardTransactionIdentifier;
  14 import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard.ShardStats;
  15
  16 /**
  17  * A factory for creating ShardTransaction actors.
  18  *
  19  * @author Thomas Pantelis
  20  */
  21 class ShardTransactionActorFactory {
  22
  23     private final ShardDataTree dataTree;
  24     private final DatastoreContext datastoreContext;
  25     private final String txnDispatcherPath;
  26     private final ShardStats shardMBean;
  27     private final UntypedActorContext actorContext;
  28     private final ActorRef shardActor;
  29
  30     ShardTransactionActorFactory(ShardDataTree dataTree, DatastoreContext datastoreContext,
  31             String txnDispatcherPath, ActorRef shardActor, UntypedActorContext actorContext, ShardStats shardMBean) {
  32         this.dataTree = Preconditions.checkNotNull(dataTree);
  33         this.datastoreContext = datastoreContext;
  34         this.txnDispatcherPath = txnDispatcherPath;
  35         this.shardMBean = shardMBean;
  36         this.actorContext = actorContext;
  37         this.shardActor = shardActor;
  38     }
  39
  40     ActorRef newShardTransaction(TransactionType type, ShardTransactionIdentifier transactionID,
  41             String transactionChainID, short clientVersion) {
  42         final AbstractShardDataTreeTransaction<?> transaction;
  43         switch (type) {
  44         case READ_ONLY:
  45             transaction = dataTree.newReadOnlyTransaction(transactionID.toString(), transactionChainID);
  46             shardMBean.incrementReadOnlyTransactionCount();
  47             break;
  48         case READ_WRITE:
  49             transaction = dataTree.newReadWriteTransaction(transactionID.toString(), transactionChainID);
  50             shardMBean.incrementReadWriteTransactionCount();
  51             break;
  52         case WRITE_ONLY:
  53             transaction = dataTree.newReadWriteTransaction(transactionID.toString(), transactionChainID);
  54             shardMBean.incrementWriteOnlyTransactionCount();
  55             break;
  56         default:
  57             throw new IllegalArgumentException("Unsupported transaction type " + type);
  58         }
  59
  60         return actorContext.actorOf(ShardTransaction.props(type, transaction, shardActor, datastoreContext, shardMBean,
  61                 transactionID.getRemoteTransactionId(), clientVersion).withDispatcher(txnDispatcherPath),
  62                 transactionID.toString());
  63     }
  64 }