BUG 1735 Registering a data change listener should be asynchronous

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

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.java
index 404a4e02033ea1c89f9fada4135cfe0e4b6a935e..bf541d95deadeb3e9ecce59c83cdb988934289a5 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/DistributedDataStore.java
@@ -10,17 +10,16 @@ package org.opendaylight.controller.cluster.datastore;
 
 import akka.actor.ActorRef;
 import akka.actor.ActorSystem;
-
+import akka.dispatch.OnComplete;
+import akka.util.Timeout;
 import com.google.common.base.Preconditions;
 import org.opendaylight.controller.cluster.datastore.identifiers.ShardManagerIdentifier;
 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 org.opendaylight.controller.cluster.datastore.shardstrategy.ShardStrategyFactory;
 import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataBroker;
 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
-import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStoreConfigProperties;
 import org.opendaylight.controller.sal.core.spi.data.DOMStore;
 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadTransaction;
 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
@@ -33,6 +32,7 @@ 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 scala.concurrent.Future;
 
 /**
  *
@@ -40,38 +40,38 @@ import org.slf4j.LoggerFactory;
 public class DistributedDataStore implements DOMStore, SchemaContextListener, AutoCloseable {
 
     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 ActorContext actorContext;
 
-    private SchemaContext schemaContext;
-
     public DistributedDataStore(ActorSystem actorSystem, String type, ClusterWrapper cluster,
-            Configuration configuration, InMemoryDOMDataStoreConfigProperties dataStoreProperties) {
+            Configuration configuration, DatastoreContext datastoreContext) {
         Preconditions.checkNotNull(actorSystem, "actorSystem should not be null");
         Preconditions.checkNotNull(type, "type 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 shardManagerId = ShardManagerIdentifier.builder().type(type).build().toString();
 
         LOG.info("Creating ShardManager : {}", shardManagerId);
 
-        this.actorContext = new ActorContext(actorSystem, actorSystem
-            .actorOf(ShardManager.props(type, cluster, configuration, dataStoreProperties),
-                shardManagerId ), cluster, configuration);
+        actorContext = new ActorContext(actorSystem, actorSystem.actorOf(
+                ShardManager.props(type, cluster, configuration, datastoreContext)
+                    .withMailbox(ActorContext.MAILBOX), shardManagerId ), cluster, configuration);
+
+        actorContext.setOperationTimeout(datastoreContext.getOperationTimeoutInSeconds());
     }
 
     public DistributedDataStore(ActorContext actorContext) {
         this.actorContext = Preconditions.checkNotNull(actorContext, "actorContext should not be null");
     }
 
-
     @SuppressWarnings("unchecked")
     @Override
     public <L extends AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>>
                                               ListenerRegistration<L> registerChangeListener(
-        YangInstanceIdentifier path, L listener,
+        final YangInstanceIdentifier path, L listener,
         AsyncDataBroker.DataChangeScope scope) {
 
         Preconditions.checkNotNull(path, "path should not be null");
@@ -80,19 +80,33 @@ public class DistributedDataStore implements DOMStore, SchemaContextListener, Au
         LOG.debug("Registering listener: {} for path: {} scope: {}", listener, path, scope);
 
         ActorRef dataChangeListenerActor = actorContext.getActorSystem().actorOf(
-            DataChangeListener.props(schemaContext,listener,path ));
+            DataChangeListener.props(listener ));
 
         String shardName = ShardStrategyFactory.getStrategy(path).findShard(path);
 
-        Object result = actorContext.executeLocalShardOperation(shardName,
+        Future future = actorContext.executeLocalShardOperationAsync(shardName,
             new RegisterChangeListener(path, dataChangeListenerActor.path(), scope),
-            ActorContext.ASK_DURATION);
-
-        if (result != null) {
-            RegisterChangeListenerReply reply = (RegisterChangeListenerReply) result;
-            return new DataChangeListenerRegistrationProxy(actorContext
-                .actorSelection(reply.getListenerRegistrationPath()), listener,
-                dataChangeListenerActor);
+            new Timeout(actorContext.getOperationDuration().$times(
+                REGISTER_DATA_CHANGE_LISTENER_TIMEOUT_FACTOR)));
+
+        if (future != null) {
+            final DataChangeListenerRegistrationProxy listenerRegistrationProxy =
+                new DataChangeListenerRegistrationProxy(listener, dataChangeListenerActor);
+
+            future.onComplete(new OnComplete(){
+
+                @Override public void onComplete(Throwable failure, Object result)
+                    throws Throwable {
+                    if(failure != null){
+                        LOG.error("Failed to register listener at path " + path.toString(), failure);
+                        return;
+                    }
+                    RegisterChangeListenerReply reply = (RegisterChangeListenerReply) result;
+                    listenerRegistrationProxy.setListenerRegistrationActor(actorContext
+                        .actorSelection(reply.getListenerRegistrationPath()));
+                }
+            }, actorContext.getActorSystem().dispatcher());
+            return listenerRegistrationProxy;
         }
 
         LOG.debug(
@@ -104,35 +118,31 @@ public class DistributedDataStore implements DOMStore, SchemaContextListener, Au
 
     @Override
     public DOMStoreTransactionChain createTransactionChain() {
-        return new TransactionChainProxy(actorContext, schemaContext);
+        return new TransactionChainProxy(actorContext);
     }
 
     @Override
     public DOMStoreReadTransaction newReadOnlyTransaction() {
-        return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_ONLY,
-            schemaContext);
+        return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_ONLY);
     }
 
     @Override
     public DOMStoreWriteTransaction newWriteOnlyTransaction() {
-        return new TransactionProxy(actorContext, TransactionProxy.TransactionType.WRITE_ONLY,
-            schemaContext);
+        return new TransactionProxy(actorContext, TransactionProxy.TransactionType.WRITE_ONLY);
     }
 
     @Override
     public DOMStoreReadWriteTransaction newReadWriteTransaction() {
-        return new TransactionProxy(actorContext, TransactionProxy.TransactionType.READ_WRITE,
-            schemaContext);
+        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() throws Exception {
         actorContext.shutdown();
-
     }
 }