107c959112fbc34398ae48b144752a8b28c99e41
[controller.git] / 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 com.google.common.base.Preconditions;
14 import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier;
15 import org.opendaylight.controller.cluster.datastore.shardstrategy.ShardStrategyFactory;
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.YangInstanceIdentifier;
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 LOG = LoggerFactory.getLogger(DistributedDataStore.class);
38     public static final int REGISTER_DATA_CHANGE_LISTENER_TIMEOUT_FACTOR = 24; // 24 times the usual operation timeout
39
40     private final ActorContext actorContext;
41
42     public DistributedDataStore(ActorSystem actorSystem, ClusterWrapper cluster,
43             Configuration configuration, DatastoreContext datastoreContext) {
44         Preconditions.checkNotNull(actorSystem, "actorSystem should not be null");
45         Preconditions.checkNotNull(cluster, "cluster should not be null");
46         Preconditions.checkNotNull(configuration, "configuration should not be null");
47         Preconditions.checkNotNull(datastoreContext, "datastoreContext should not be null");
48
49         String type = datastoreContext.getDataStoreType();
50
51         String shardManagerId = ShardManagerIdentifier.builder().type(type).build().toString();
52
53         LOG.info("Creating ShardManager : {}", shardManagerId);
54
55         actorContext = new ActorContext(actorSystem, actorSystem.actorOf(
56                 ShardManager.props(cluster, configuration, datastoreContext)
57                     .withMailbox(ActorContext.MAILBOX), shardManagerId ),
58                 cluster, configuration, datastoreContext);
59     }
60
61     public DistributedDataStore(ActorContext actorContext) {
62         this.actorContext = Preconditions.checkNotNull(actorContext, "actorContext should not be null");
63     }
64
65     @SuppressWarnings("unchecked")
66     @Override
67     public <L extends AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
68                                               ListenerRegistration<L> registerChangeListener(
69         final YangInstanceIdentifier path, L listener,
70         AsyncDataBroker.DataChangeScope scope) {
71
72         Preconditions.checkNotNull(path, "path should not be null");
73         Preconditions.checkNotNull(listener, "listener should not be null");
74
75         LOG.debug("Registering listener: {} for path: {} scope: {}", listener, path, scope);
76
77         String shardName = ShardStrategyFactory.getStrategy(path).findShard(path);
78
79         final DataChangeListenerRegistrationProxy listenerRegistrationProxy =
80                 new DataChangeListenerRegistrationProxy(shardName, actorContext, listener);
81         listenerRegistrationProxy.init(path, scope);
82
83         return listenerRegistrationProxy;
84     }
85
86     @Override
87     public DOMStoreTransactionChain createTransactionChain() {
88         return new TransactionChainProxy(actorContext);
89     }
90
91     @Override
92     public DOMStoreReadTransaction newReadOnlyTransaction() {
93         return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_ONLY);
94     }
95
96     @Override
97     public DOMStoreWriteTransaction newWriteOnlyTransaction() {
98         actorContext.acquireTxCreationPermit();
99         return new TransactionProxy(actorContext, TransactionProxy.TransactionType.WRITE_ONLY);
100     }
101
102     @Override
103     public DOMStoreReadWriteTransaction newReadWriteTransaction() {
104         actorContext.acquireTxCreationPermit();
105         return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_WRITE);
106     }
107
108     @Override
109     public void onGlobalContextUpdated(SchemaContext schemaContext) {
110         actorContext.setSchemaContext(schemaContext);
111     }
112
113     @Override
114     public void close() throws Exception {
115         actorContext.shutdown();
116     }
117
118     @VisibleForTesting
119     ActorContext getActorContext() {
120         return actorContext;
121     }
122 }

©2013 OpenDaylight, A Linux Foundation Collaborative Project. All Rights Reserved.
OpenDaylight is a registered trademark of The OpenDaylight Project, Inc.
Linux Foundation and OpenDaylight are registered trademarks of the Linux Foundation.
Linux is a registered trademark of Linus Torvalds.