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
  25     /**
  26      * Create a data store instance.
  27      *
  28      * @deprecated Use {@link #createInstance(DOMSchemaService, DatastoreContext, DatastoreSnapshotRestore,
  29      *                        ActorSystemProvider, BundleContext)} instead.
  30      */
  31     @Deprecated
  32     public static AbstractDataStore createInstance(final SchemaService schemaService,
  33             final DatastoreContext initialDatastoreContext, final DatastoreSnapshotRestore datastoreSnapshotRestore,
  34             final ActorSystemProvider actorSystemProvider, final BundleContext bundleContext) {
  35
  36         return createInstance((DOMSchemaService) schemaService, initialDatastoreContext, datastoreSnapshotRestore,
  37             actorSystemProvider, bundleContext);
  38     }
  39
  40     public static AbstractDataStore createInstance(final DOMSchemaService schemaService,
  41             final DatastoreContext initialDatastoreContext, final DatastoreSnapshotRestore datastoreSnapshotRestore,
  42             final ActorSystemProvider actorSystemProvider, final BundleContext bundleContext) {
  43
  44         final String datastoreName = initialDatastoreContext.getDataStoreName();
  45         LOG.info("Create data store instance of type : {}", datastoreName);
  46
  47         final ActorSystem actorSystem = actorSystemProvider.getActorSystem();
  48         final DatastoreSnapshot restoreFromSnapshot = datastoreSnapshotRestore.getAndRemove(datastoreName);
  49         final DatastoreContextIntrospector introspector = new DatastoreContextIntrospector(initialDatastoreContext);
  50         final DatastoreContextConfigAdminOverlay overlay = new DatastoreContextConfigAdminOverlay(
  51                 introspector, bundleContext);
  52
  53         final Configuration config = new ConfigurationImpl("module-shards.conf", "modules.conf");
  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
  71         overlay.setListener(dataStore);
  72
  73         schemaService.registerSchemaContextListener(dataStore);
  74
  75         dataStore.setCloseable(overlay);
  76         dataStore.waitTillReady();
  77
  78         return dataStore;
  79     }
  80 }