Merge "Removing { } from NormalizedNodeJsonBodyWriter"
[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / DistributedDataStore.java
index c7f811b0118f0e5abbb7ea77429002e00ba42a92..434efc9111f48e3910af12386d3cd1d4f5e7360a 100644 (file)
@@ -8,12 +8,14 @@
 
 package org.opendaylight.controller.cluster.datastore;
 
-import akka.actor.ActorRef;
 import akka.actor.ActorSystem;
-import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListener;
-import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListenerReply;
-import org.opendaylight.controller.cluster.datastore.messages.UpdateSchemaContext;
+import com.google.common.annotations.VisibleForTesting;
+import com.google.common.base.Preconditions;
+import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier;
+import org.opendaylight.controller.cluster.datastore.jmx.mbeans.DatastoreConfigurationMXBeanImpl;
+import org.opendaylight.controller.cluster.datastore.shardstrategy.ShardStrategyFactory;
 import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
+import org.opendaylight.controller.cluster.datastore.utils.Dispatchers;
 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
 import org.opendaylight.controller.sal.core.spi.data.DOMStore;
@@ -22,104 +24,126 @@ import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransactio
 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
 import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
 import org.opendaylight.yangtools.concepts.ListenerRegistration;
-import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
 import org.opendaylight.yangtools.yang.model.api.SchemaContext;
 import org.opendaylight.yangtools.yang.model.api.SchemaContextListener;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
-import java.util.concurrent.ExecutorService;
-import java.util.concurrent.Executors;
-
 /**
  *
  */
 public class DistributedDataStore implements DOMStore, SchemaContextListener, AutoCloseable {
 
-    private static final Logger
-        LOG = LoggerFactory.getLogger(DistributedDataStore.class);
-
+    private static final Logger LOG = LoggerFactory.getLogger(DistributedDataStore.class);
+    public static final int REGISTER_DATA_CHANGE_LISTENER_TIMEOUT_FACTOR = 24; // 24 times the usual operation timeout
 
-    private final String type;
     private final ActorContext actorContext;
 
-    private SchemaContext schemaContext;
+    private AutoCloseable closeable;
+
+    private DatastoreConfigurationMXBeanImpl datastoreConfigMXBean;
+
+    public DistributedDataStore(ActorSystem actorSystem, ClusterWrapper cluster,
+            Configuration configuration, DatastoreContext datastoreContext) {
+        Preconditions.checkNotNull(actorSystem, "actorSystem should not be null");
+        Preconditions.checkNotNull(cluster, "cluster should not be null");
+        Preconditions.checkNotNull(configuration, "configuration should not be null");
+        Preconditions.checkNotNull(datastoreContext, "datastoreContext should not be null");
 
+        String type = datastoreContext.getDataStoreType();
 
+        String shardManagerId = ShardManagerIdentifier.builder().type(type).build().toString();
 
-    /**
-     * Executor used to run FutureTask's
-     *
-     * This is typically used when we need to make a request to an actor and
-     * wait for it's response and the consumer needs to be provided a Future.
-     *
-     * FIXME : Make the thread pool configurable
-     */
-    private final ExecutorService executor =
-        Executors.newFixedThreadPool(10);
+        LOG.info("Creating ShardManager : {}", shardManagerId);
 
-    public DistributedDataStore(ActorSystem actorSystem, String type, ClusterWrapper cluster, Configuration configuration) {
-        this(new ActorContext(actorSystem, actorSystem.actorOf(ShardManager.props(type, cluster, configuration), "shardmanager-" + type), configuration), type);
+        String shardDispatcher =
+                new Dispatchers(actorSystem.dispatchers()).getDispatcherPath(Dispatchers.DispatcherType.Shard);
+
+        actorContext = new ActorContext(actorSystem, actorSystem.actorOf(
+                ShardManager.props(cluster, configuration, datastoreContext)
+                        .withDispatcher(shardDispatcher).withMailbox(ActorContext.MAILBOX), shardManagerId ),
+                cluster, configuration, datastoreContext);
+
+        datastoreConfigMXBean = new DatastoreConfigurationMXBeanImpl(datastoreContext.getDataStoreMXBeanType());
+        datastoreConfigMXBean.setContext(datastoreContext);
+        datastoreConfigMXBean.registerMBean();
     }
 
-    public DistributedDataStore(ActorContext actorContext, String type) {
-        this.type = type;
-        this.actorContext = actorContext;
+    public DistributedDataStore(ActorContext actorContext) {
+        this.actorContext = Preconditions.checkNotNull(actorContext, "actorContext should not be null");
     }
 
+    public void setCloseable(AutoCloseable closeable) {
+        this.closeable = closeable;
+    }
 
+    @SuppressWarnings("unchecked")
     @Override
-    public <L extends AsyncDataChangeListener<InstanceIdentifier, NormalizedNode<?, ?>>> ListenerRegistration<L> registerChangeListener(
-        InstanceIdentifier path, L listener,
+    public <L extends AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
+                                              ListenerRegistration<L> registerChangeListener(
+        final YangInstanceIdentifier path, L listener,
         AsyncDataBroker.DataChangeScope scope) {
 
-        ActorRef dataChangeListenerActor = actorContext.getActorSystem().actorOf(
-            DataChangeListener.props(listener));
+        Preconditions.checkNotNull(path, "path should not be null");
+        Preconditions.checkNotNull(listener, "listener should not be null");
 
-        Object result = actorContext.executeShardOperation(Shard.DEFAULT_NAME,
-            new RegisterChangeListener(path, dataChangeListenerActor.path(),
-                AsyncDataBroker.DataChangeScope.BASE).toSerializable(),
-            ActorContext.ASK_DURATION
-        );
+        LOG.debug("Registering listener: {} for path: {} scope: {}", listener, path, scope);
 
-        RegisterChangeListenerReply reply = RegisterChangeListenerReply.fromSerializable(actorContext.getActorSystem(),result);
-        return new DataChangeListenerRegistrationProxy(actorContext.actorSelection(reply.getListenerRegistrationPath()), listener, dataChangeListenerActor);
-    }
+        String shardName = ShardStrategyFactory.getStrategy(path).findShard(path);
 
+        final DataChangeListenerRegistrationProxy listenerRegistrationProxy =
+                new DataChangeListenerRegistrationProxy(shardName, actorContext, listener);
+        listenerRegistrationProxy.init(path, scope);
 
+        return listenerRegistrationProxy;
+    }
 
     @Override
     public DOMStoreTransactionChain createTransactionChain() {
-        return new TransactionChainProxy(actorContext, executor, schemaContext);
+        return new TransactionChainProxy(actorContext);
     }
 
     @Override
     public DOMStoreReadTransaction newReadOnlyTransaction() {
-        return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_ONLY,
-            executor, schemaContext);
+        return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_ONLY);
     }
 
     @Override
     public DOMStoreWriteTransaction newWriteOnlyTransaction() {
-        return new TransactionProxy(actorContext, TransactionProxy.TransactionType.WRITE_ONLY,
-            executor, schemaContext);
+        actorContext.acquireTxCreationPermit();
+        return new TransactionProxy(actorContext, TransactionProxy.TransactionType.WRITE_ONLY);
     }
 
     @Override
     public DOMStoreReadWriteTransaction newReadWriteTransaction() {
-        return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_WRITE,
-            executor, schemaContext);
+        actorContext.acquireTxCreationPermit();
+        return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_WRITE);
     }
 
-    @Override public void onGlobalContextUpdated(SchemaContext schemaContext) {
-        this.schemaContext = schemaContext;
-        actorContext.getShardManager().tell(
-            new UpdateSchemaContext(schemaContext), null);
+    @Override
+    public void onGlobalContextUpdated(SchemaContext schemaContext) {
+        actorContext.setSchemaContext(schemaContext);
     }
 
-    @Override public void close() throws Exception {
+    @Override
+    public void close() {
+        datastoreConfigMXBean.unregisterMBean();
+
+        if(closeable != null) {
+            try {
+                closeable.close();
+            } catch (Exception e) {
+                LOG.debug("Error closing insance", e);
+            }
+        }
+
         actorContext.shutdown();
+    }
 
+    @VisibleForTesting
+    ActorContext getActorContext() {
+        return actorContext;
     }
 }