opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.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.ActorSystem;
  12 import com.google.common.annotations.VisibleForTesting;
  13 import org.opendaylight.controller.cluster.access.concepts.ClientIdentifier;
  14 import org.opendaylight.controller.cluster.datastore.config.Configuration;
  15 import org.opendaylight.controller.cluster.datastore.messages.DatastoreSnapshot;
  16 import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
  17 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
  18 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
  19 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  20 import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
  21
  22 /**
  23  * Implements a distributed DOMStore using Akka Patterns.ask().
  24  */
  25 public class DistributedDataStore extends AbstractDataStore {
  26
  27     private final TransactionContextFactory txContextFactory;
  28
  29     public DistributedDataStore(final ActorSystem actorSystem, final ClusterWrapper cluster,
  30             final Configuration configuration, final DatastoreContextFactory datastoreContextFactory,
  31             final DatastoreSnapshot restoreFromSnapshot) {
  32         super(actorSystem, cluster, configuration, datastoreContextFactory, restoreFromSnapshot);
  33         this.txContextFactory = new TransactionContextFactory(getActorContext(), getIdentifier());
  34     }
  35
  36     @VisibleForTesting
  37     DistributedDataStore(final ActorContext actorContext, final ClientIdentifier identifier) {
  38         super(actorContext, identifier);
  39         this.txContextFactory = new TransactionContextFactory(getActorContext(), getIdentifier());
  40     }
  41
  42
  43     @Override
  44     public DOMStoreTransactionChain createTransactionChain() {
  45         return txContextFactory.createTransactionChain();
  46     }
  47
  48     @Override
  49     public DOMStoreReadTransaction newReadOnlyTransaction() {
  50         return new TransactionProxy(txContextFactory, TransactionType.READ_ONLY);
  51     }
  52
  53     @Override
  54     public DOMStoreWriteTransaction newWriteOnlyTransaction() {
  55         getActorContext().acquireTxCreationPermit();
  56         return new TransactionProxy(txContextFactory, TransactionType.WRITE_ONLY);
  57     }
  58
  59     @Override
  60     public DOMStoreReadWriteTransaction newReadWriteTransaction() {
  61         getActorContext().acquireTxCreationPermit();
  62         return new TransactionProxy(txContextFactory, TransactionType.READ_WRITE);
  63     }
  64
  65     @Override
  66     public void close() {
  67         txContextFactory.close();
  68         super.close();
  69     }
  70 }