Metrics and Configuration

[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 8739ed1966b618a3843c8e23e5671ea05eb48f15..a6f187d065504b21f2f4cf5a7b0d27007880d831 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
@@ -9,22 +9,60 @@
 package org.opendaylight.controller.cluster.datastore;
 
 import akka.actor.ActorSystem;
-
+import akka.actor.Props;
+import akka.osgi.BundleDelegatingClassLoader;
+import com.google.common.base.Preconditions;
+import com.typesafe.config.Config;
+import com.typesafe.config.ConfigFactory;
 import org.opendaylight.controller.cluster.datastore.shardstrategy.ShardStrategyFactory;
 import org.opendaylight.controller.sal.core.api.model.SchemaService;
 import org.osgi.framework.BundleContext;
 
+import java.io.File;
+import java.util.concurrent.atomic.AtomicReference;
+
 public class DistributedDataStoreFactory {
+
+    public static final String AKKA_CONF_PATH = "./configuration/initial/akka.conf";
+    public static final String ACTOR_SYSTEM_NAME = "opendaylight-cluster-data";
+    public static final String CONFIGURATION_NAME = "odl-cluster-data";
+    private static AtomicReference<ActorSystem> actorSystem = new AtomicReference<>();
+
     public static DistributedDataStore createInstance(String name, SchemaService schemaService,
-            DatastoreContext datastoreContext, BundleContext bundleContext) {
+                                                      DatastoreContext datastoreContext, BundleContext bundleContext) {
 
-        ActorSystem actorSystem = ActorSystemFactory.createInstance(bundleContext);
+        ActorSystem actorSystem = getOrCreateInstance(bundleContext);
         Configuration config = new ConfigurationImpl("module-shards.conf", "modules.conf");
         final DistributedDataStore dataStore =
-            new DistributedDataStore(actorSystem, name, new ClusterWrapperImpl(actorSystem),
-                    config, datastoreContext );
+                new DistributedDataStore(actorSystem, name, new ClusterWrapperImpl(actorSystem),
+                        config, datastoreContext);
+
         ShardStrategyFactory.setConfiguration(config);
         schemaService.registerSchemaContextListener(dataStore);
         return dataStore;
     }
+
+    synchronized private static final ActorSystem getOrCreateInstance(final BundleContext bundleContext) {
+
+        if (actorSystem.get() != null){
+            return actorSystem.get();
+        }
+        // Create an OSGi bundle classloader for actor system
+        BundleDelegatingClassLoader classLoader = new BundleDelegatingClassLoader(bundleContext.getBundle(),
+                Thread.currentThread().getContextClassLoader());
+
+        ActorSystem system = ActorSystem.create(ACTOR_SYSTEM_NAME,
+                ConfigFactory.load(readAkkaConfiguration()).getConfig(CONFIGURATION_NAME), classLoader);
+        system.actorOf(Props.create(TerminationMonitor.class), "termination-monitor");
+
+        actorSystem.set(system);
+        return system;
+    }
+
+
+    private static final Config readAkkaConfiguration() {
+        File defaultConfigFile = new File(AKKA_CONF_PATH);
+        Preconditions.checkState(defaultConfigFile.exists(), "akka.conf is missing");
+        return ConfigFactory.parseFile(defaultConfigFile);
+    }
 }