opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStoreFactory.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 package org.opendaylight.controller.cluster.datastore;
   9
  10 import akka.actor.ActorSystem;
  11 import org.opendaylight.controller.cluster.ActorSystemProvider;
  12 import org.opendaylight.controller.cluster.databroker.ClientBackedDataStore;
  13 import org.opendaylight.controller.cluster.datastore.config.Configuration;
  14 import org.opendaylight.controller.cluster.datastore.config.ConfigurationImpl;
  15 import org.opendaylight.controller.cluster.datastore.persisted.DatastoreSnapshot;
  16 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
  17 import org.slf4j.Logger;
  18 import org.slf4j.LoggerFactory;
  19
  20 public final class DistributedDataStoreFactory {
  21
  22     private static final Logger LOG = LoggerFactory.getLogger(DistributedDataStoreFactory.class);
  23     private static final String DEFAULT_MODULE_SHARDS_PATH = "./configuration/initial/module-shards.conf";
  24     private static final String DEFAULT_MODULES_PATH = "./configuration/initial/modules.conf";
  25
  26     private DistributedDataStoreFactory() {
  27     }
  28
  29     public static AbstractDataStore createInstance(final DOMSchemaService schemaService,
  30             final DatastoreContext initialDatastoreContext, final DatastoreSnapshotRestore datastoreSnapshotRestore,
  31             final ActorSystemProvider actorSystemProvider, final DatastoreContextIntrospector introspector,
  32             final DatastoreContextPropertiesUpdater updater) {
  33         return createInstance(schemaService, initialDatastoreContext, datastoreSnapshotRestore, actorSystemProvider,
  34                 introspector, updater, null);
  35     }
  36
  37     public static AbstractDataStore createInstance(final DOMSchemaService schemaService,
  38             final DatastoreContext initialDatastoreContext, final DatastoreSnapshotRestore datastoreSnapshotRestore,
  39             final ActorSystemProvider actorSystemProvider, final DatastoreContextIntrospector introspector,
  40             final DatastoreContextPropertiesUpdater updater, final Configuration orgConfig) {
  41
  42         final String datastoreName = initialDatastoreContext.getDataStoreName();
  43         LOG.info("Create data store instance of type : {}", datastoreName);
  44
  45         final ActorSystem actorSystem = actorSystemProvider.getActorSystem();
  46         final DatastoreSnapshot restoreFromSnapshot = datastoreSnapshotRestore.getAndRemove(datastoreName);
  47
  48         Configuration config;
  49         if (orgConfig == null) {
  50             config = new ConfigurationImpl(DEFAULT_MODULE_SHARDS_PATH, DEFAULT_MODULES_PATH);
  51         } else {
  52             config = orgConfig;
  53         }
  54         final ClusterWrapper clusterWrapper = new ClusterWrapperImpl(actorSystem);
  55         final DatastoreContextFactory contextFactory = introspector.newContextFactory();
  56
  57         // This is the potentially-updated datastore context, distinct from the initial one
  58         final DatastoreContext datastoreContext = contextFactory.getBaseDatastoreContext();
  59
  60         final AbstractDataStore dataStore;
  61         if (datastoreContext.isUseTellBasedProtocol()) {
  62             dataStore = new ClientBackedDataStore(actorSystem, clusterWrapper, config, contextFactory,
  63                 restoreFromSnapshot);
  64             LOG.info("Data store {} is using tell-based protocol", datastoreName);
  65         } else {
  66             dataStore = new DistributedDataStore(actorSystem, clusterWrapper, config, contextFactory,
  67                 restoreFromSnapshot);
  68             LOG.info("Data store {} is using ask-based protocol", datastoreName);
  69         }
  70         updater.setListener(dataStore);
  71
  72         schemaService.registerSchemaContextListener(dataStore);
  73
  74         dataStore.setCloseable(updater);
  75         dataStore.waitTillReady();
  76
  77         return dataStore;
  78     }
  79 }