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.ActorRef;
  12 import akka.actor.ActorSystem;
  13 import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListener;
  14 import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListenerReply;
  15 import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
  16 import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
  17 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
  18 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
  19 import org.opendaylight.controller.sal.core.spi.data.DOMStore;
  20 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
  21 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
  22 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
  23 import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
  24 import org.opendaylight.yangtools.concepts.ListenerRegistration;
  25 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
  26 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  27 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  28 import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
  29 import org.slf4j.Logger;
  30 import org.slf4j.LoggerFactory;
  31
  32 /**
  33  *
  34  */
  35 public class DistributedDataStore implements DOMStore, SchemaContextListener, AutoCloseable {
  36
  37     private static final Logger
  38         LOG = LoggerFactory.getLogger(DistributedDataStore.class);
  39
  40
  41     private final String type;
  42     private final ActorContext actorContext;
  43
  44     public DistributedDataStore(ActorSystem actorSystem, String type) {
  45         this(new ActorContext(actorSystem, actorSystem.actorOf(ShardManager.props(type))), type);
  46     }
  47
  48     public DistributedDataStore(ActorContext actorContext, String type) {
  49         this.type = type;
  50         this.actorContext = actorContext;
  51     }
  52
  53
  54     @Override
  55     public <L extends AsyncDataChangeListener<InstanceIdentifier, NormalizedNode<?, ?>>> ListenerRegistration<L> registerChangeListener(
  56         InstanceIdentifier path, L listener,
  57         AsyncDataBroker.DataChangeScope scope) {
  58
  59         ActorRef dataChangeListenerActor = actorContext.getActorSystem().actorOf(
  60             DataChangeListener.props(listener));
  61
  62         Object result = actorContext.executeShardOperation(Shard.DEFAULT_NAME,
  63             new RegisterChangeListener(path, dataChangeListenerActor.path(),
  64                 AsyncDataBroker.DataChangeScope.BASE),
  65             ActorContext.ASK_DURATION
  66         );
  67
  68         RegisterChangeListenerReply reply = (RegisterChangeListenerReply) result;
  69         return new DataChangeListenerRegistrationProxy(actorContext.actorSelection(reply.getListenerRegistrationPath()), listener);
  70     }
  71
  72
  73
  74     @Override
  75     public DOMStoreTransactionChain createTransactionChain() {
  76         return new TransactionChainProxy(actorContext);
  77     }
  78
  79     @Override
  80     public DOMStoreReadTransaction newReadOnlyTransaction() {
  81         return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_ONLY);
  82     }
  83
  84     @Override
  85     public DOMStoreWriteTransaction newWriteOnlyTransaction() {
  86         return new TransactionProxy(actorContext, TransactionProxy.TransactionType.WRITE_ONLY);
  87     }
  88
  89     @Override
  90     public DOMStoreReadWriteTransaction newReadWriteTransaction() {
  91         return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_WRITE);
  92     }
  93
  94     @Override public void onGlobalContextUpdated(SchemaContext schemaContext) {
  95         actorContext.getShardManager().tell(
  96             new UpdateSchemaContext(schemaContext), null);
  97     }
  98
  99     @Override public void close() throws Exception {
 100         actorContext.shutdown();
 101
 102     }
 103 }