Convert sal-distributed-datastore to OSGi DS

[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / DistributedDataStoreFactory.java

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStoreFactory.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStoreFactory.java
index 8199e33294874f729dcc886fa482c9937eb73f1e..221db2faea0ff6157db7f609f9af9179aecfec6b 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStoreFactory.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStoreFactory.java
@@ -8,61 +8,84 @@
 package org.opendaylight.controller.cluster.datastore;
 
 import akka.actor.ActorSystem;
-import akka.actor.Props;
-import akka.osgi.BundleDelegatingClassLoader;
-import com.typesafe.config.ConfigFactory;
-import org.opendaylight.controller.cluster.datastore.config.ConfigurationReader;
-import org.opendaylight.controller.cluster.datastore.shardstrategy.ShardStrategyFactory;
-import org.opendaylight.controller.sal.core.api.model.SchemaService;
-import org.osgi.framework.BundleContext;
+import org.opendaylight.controller.cluster.ActorSystemProvider;
+import org.opendaylight.controller.cluster.databroker.ClientBackedDataStore;
+import org.opendaylight.controller.cluster.datastore.config.Configuration;
+import org.opendaylight.controller.cluster.datastore.config.ConfigurationImpl;
+import org.opendaylight.controller.cluster.datastore.persisted.DatastoreSnapshot;
+import org.opendaylight.mdsal.dom.api.DOMSchemaService;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
 
-public class DistributedDataStoreFactory {
-    private static final String ACTOR_SYSTEM_NAME = "opendaylight-cluster-data";
-    private static final String CONFIGURATION_NAME = "odl-cluster-data";
+public final class DistributedDataStoreFactory {
 
-    private static volatile ActorSystem persistentActorSystem = null;
+    private static final Logger LOG = LoggerFactory.getLogger(DistributedDataStoreFactory.class);
+    private static final String DEFAULT_MODULE_SHARDS_PATH = "./configuration/initial/module-shards.conf";
+    private static final String DEFAULT_MODULES_PATH = "./configuration/initial/modules.conf";
 
-    public static DistributedDataStore createInstance(SchemaService schemaService,
-            DatastoreContext datastoreContext, BundleContext bundleContext) {
+    private DistributedDataStoreFactory() {
+    }
+
+    public static AbstractDataStore createInstance(final DOMSchemaService schemaService,
+            final DatastoreContext initialDatastoreContext, final DatastoreSnapshotRestore datastoreSnapshotRestore,
+            final ActorSystemProvider actorSystemProvider, final DatastoreContextIntrospector introspector,
+            final DatastoreContextPropertiesUpdater updater) {
+        return createInstance(schemaService, initialDatastoreContext, datastoreSnapshotRestore, actorSystemProvider,
+                introspector, updater, null);
+    }
 
-        DatastoreContextIntrospector introspector = new DatastoreContextIntrospector(datastoreContext);
-        DatastoreContextConfigAdminOverlay overlay = new DatastoreContextConfigAdminOverlay(
-                introspector, bundleContext);
+    // TODO: separate out settle wait so it is better controlled
+    public static AbstractDataStore createInstance(final DOMSchemaService schemaService,
+            final DatastoreContext initialDatastoreContext, final DatastoreSnapshotRestore datastoreSnapshotRestore,
+            final ActorSystemProvider actorSystemProvider, final DatastoreContextIntrospector introspector,
+            final DatastoreContextPropertiesUpdater updater, final Configuration orgConfig) {
 
-        ActorSystem actorSystem = getOrCreateInstance(bundleContext, datastoreContext.getConfigurationReader());
-        Configuration config = new ConfigurationImpl("module-shards.conf", "modules.conf");
-        final DistributedDataStore dataStore = new DistributedDataStore(actorSystem,
-                new ClusterWrapperImpl(actorSystem), config, introspector.getContext());
+        final AbstractDataStore dataStore = createInstance(actorSystemProvider, initialDatastoreContext,
+            introspector, datastoreSnapshotRestore, orgConfig);
 
-        overlay.setListener(dataStore);
+        updater.setListener(dataStore);
 
-        ShardStrategyFactory.setConfiguration(config);
         schemaService.registerSchemaContextListener(dataStore);
 
-        dataStore.setCloseable(overlay);
+        dataStore.setCloseable(updater);
         dataStore.waitTillReady();
+
         return dataStore;
     }
 
-    private static final ActorSystem getOrCreateInstance(final BundleContext bundleContext, ConfigurationReader configurationReader) {
-        ActorSystem ret = persistentActorSystem;
-        if (ret == null) {
-            synchronized (DistributedDataStoreFactory.class) {
-                ret = persistentActorSystem;
-                if (ret == null) {
-                    // Create an OSGi bundle classloader for actor system
-                    BundleDelegatingClassLoader classLoader = new BundleDelegatingClassLoader(bundleContext.getBundle(),
-                        Thread.currentThread().getContextClassLoader());
-
-                    ret = ActorSystem.create(ACTOR_SYSTEM_NAME,
-                        ConfigFactory.load(configurationReader.read()).getConfig(CONFIGURATION_NAME), classLoader);
-                    ret.actorOf(Props.create(TerminationMonitor.class), "termination-monitor");
-
-                    persistentActorSystem = ret;
-                }
-            }
+    public static AbstractDataStore createInstance(final ActorSystemProvider actorSystemProvider,
+            final DatastoreContext initialDatastoreContext, final DatastoreContextIntrospector introspector,
+            final DatastoreSnapshotRestore datastoreSnapshotRestore, final Configuration orgConfig) {
+
+        final String datastoreName = initialDatastoreContext.getDataStoreName();
+        LOG.info("Create data store instance of type : {}", datastoreName);
+
+        final ActorSystem actorSystem = actorSystemProvider.getActorSystem();
+        final DatastoreSnapshot restoreFromSnapshot = datastoreSnapshotRestore.getAndRemove(datastoreName).orElse(null);
+
+        final Configuration config;
+        if (orgConfig == null) {
+            config = new ConfigurationImpl(DEFAULT_MODULE_SHARDS_PATH, DEFAULT_MODULES_PATH);
+        } else {
+            config = orgConfig;
         }
+        final ClusterWrapper clusterWrapper = new ClusterWrapperImpl(actorSystem);
+        final DatastoreContextFactory contextFactory = introspector.newContextFactory();
+
+        // This is the potentially-updated datastore context, distinct from the initial one
+        final DatastoreContext datastoreContext = contextFactory.getBaseDatastoreContext();
 
-        return ret;
+        final AbstractDataStore dataStore;
+        if (datastoreContext.isUseTellBasedProtocol()) {
+            dataStore = new ClientBackedDataStore(actorSystem, clusterWrapper, config, contextFactory,
+                restoreFromSnapshot);
+            LOG.info("Data store {} is using tell-based protocol", datastoreName);
+        } else {
+            dataStore = new DistributedDataStore(actorSystem, clusterWrapper, config, contextFactory,
+                restoreFromSnapshot);
+            LOG.info("Data store {} is using ask-based protocol", datastoreName);
+        }
+
+        return dataStore;
     }
 }