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

   1 /*
   2  * Copyright (c) 2015 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 package org.opendaylight.controller.cluster.datastore;
   9
  10 import akka.actor.ActorSelection;
  11 import java.util.Collection;
  12 import org.opendaylight.controller.cluster.datastore.identifiers.TransactionIdentifier;
  13 import org.opendaylight.controller.cluster.datastore.messages.PrimaryShardInfo;
  14 import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
  15 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  16 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
  17 import scala.concurrent.Future;
  18
  19 /**
  20  * An {@link AbstractTransactionContextFactory} which produces TransactionContext instances for single
  21  * transactions (ie not chained).
  22  */
  23 final class TransactionContextFactory extends AbstractTransactionContextFactory<LocalTransactionFactoryImpl> {
  24
  25     private TransactionContextFactory(final ActorContext actorContext) {
  26         super(actorContext);
  27     }
  28
  29     static TransactionContextFactory create(final ActorContext actorContext) {
  30         return new TransactionContextFactory(actorContext);
  31     }
  32
  33     @Override
  34     public void close() {
  35     }
  36
  37     @Override
  38     protected TransactionIdentifier nextIdentifier() {
  39         return TransactionIdentifier.create(getMemberName(), TX_COUNTER.getAndIncrement());
  40     }
  41
  42     @Override
  43     protected LocalTransactionFactoryImpl factoryForShard(final String shardName, final ActorSelection shardLeader, final DataTree dataTree) {
  44         return new LocalTransactionFactoryImpl(getActorContext(), shardLeader, dataTree);
  45     }
  46
  47     @Override
  48     protected Future<PrimaryShardInfo> findPrimaryShard(final String shardName) {
  49         return getActorContext().findPrimaryShardAsync(shardName);
  50     }
  51
  52     @Override
  53     protected <T> void onTransactionReady(final TransactionIdentifier transaction, final Collection<Future<T>> cohortFutures) {
  54         // Transactions are disconnected, this is a no-op
  55     }
  56
  57     DOMStoreTransactionChain createTransactionChain() {
  58         return new TransactionChainProxy(this);
  59     }
  60 }