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.controller.sal.core.api.model.SchemaService;
  17 import org.opendaylight.mdsal.dom.api.DOMSchemaService;
  18 import org.osgi.framework.BundleContext;
  19 import org.slf4j.Logger;
  20 import org.slf4j.LoggerFactory;
  21
  22 public class DistributedDataStoreFactory {
  23     private static final Logger LOG = LoggerFactory.getLogger(DistributedDataStoreFactory.class);
  24     private static final String DEFAULT_MODULE_SHARDS_PATH = "./configuration/initial/module-shards.conf";
  25     private static final String DEFAULT_MODULES_PATH = "./configuration/initial/modules.conf";
  26
  27     /**
  28      * Create a data store instance.
  29      *
  30      * @deprecated Use {@link #createInstance(DOMSchemaService, DatastoreContext, DatastoreSnapshotRestore,
  31      *                        ActorSystemProvider, BundleContext)} instead.
  32      */
  33     @Deprecated
  34     public static AbstractDataStore createInstance(final SchemaService schemaService,
  35             final DatastoreContext initialDatastoreContext, final DatastoreSnapshotRestore datastoreSnapshotRestore,
  36             final ActorSystemProvider actorSystemProvider, final BundleContext bundleContext) {
  37
  38         return createInstance(schemaService, initialDatastoreContext, datastoreSnapshotRestore,
  39                 actorSystemProvider, bundleContext, null);
  40     }
  41
  42     public static AbstractDataStore createInstance(final DOMSchemaService schemaService,
  43             final DatastoreContext initialDatastoreContext, final DatastoreSnapshotRestore datastoreSnapshotRestore,
  44             final ActorSystemProvider actorSystemProvider, final BundleContext bundleContext) {
  45         return createInstance(schemaService, initialDatastoreContext, datastoreSnapshotRestore, actorSystemProvider,
  46                 bundleContext, null);
  47     }
  48
  49     public static AbstractDataStore createInstance(final DOMSchemaService schemaService,
  50             final DatastoreContext initialDatastoreContext, final DatastoreSnapshotRestore datastoreSnapshotRestore,
  51             final ActorSystemProvider actorSystemProvider, final BundleContext bundleContext,
  52             final Configuration orgConfig) {
  53
  54         final String datastoreName = initialDatastoreContext.getDataStoreName();
  55         LOG.info("Create data store instance of type : {}", datastoreName);
  56
  57         final ActorSystem actorSystem = actorSystemProvider.getActorSystem();
  58         final DatastoreSnapshot restoreFromSnapshot = datastoreSnapshotRestore.getAndRemove(datastoreName);
  59         final DatastoreContextIntrospector introspector = new DatastoreContextIntrospector(initialDatastoreContext);
  60         final DatastoreContextConfigAdminOverlay overlay = new DatastoreContextConfigAdminOverlay(
  61                 introspector, bundleContext);
  62
  63         Configuration config;
  64         if (orgConfig == null) {
  65             config = new ConfigurationImpl(DEFAULT_MODULE_SHARDS_PATH, DEFAULT_MODULES_PATH);
  66         } else {
  67             config = orgConfig;
  68         }
  69         final ClusterWrapper clusterWrapper = new ClusterWrapperImpl(actorSystem);
  70         final DatastoreContextFactory contextFactory = introspector.newContextFactory();
  71
  72         // This is the potentially-updated datastore context, distinct from the initial one
  73         final DatastoreContext datastoreContext = contextFactory.getBaseDatastoreContext();
  74
  75         final AbstractDataStore dataStore;
  76         if (datastoreContext.isUseTellBasedProtocol()) {
  77             dataStore = new ClientBackedDataStore(actorSystem, clusterWrapper, config, contextFactory,
  78                 restoreFromSnapshot);
  79             LOG.info("Data store {} is using tell-based protocol", datastoreName);
  80         } else {
  81             dataStore = new DistributedDataStore(actorSystem, clusterWrapper, config, contextFactory,
  82                 restoreFromSnapshot);
  83             LOG.info("Data store {} is using ask-based protocol", datastoreName);
  84         }
  85
  86         overlay.setListener(dataStore);
  87
  88         schemaService.registerSchemaContextListener(dataStore);
  89
  90         dataStore.setCloseable(overlay);
  91         dataStore.waitTillReady();
  92
  93         return dataStore;
  94     }
  95 }