A bunch of miscellaneous services to get Distributed Data Store ready for deployment

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

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/Shard.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/Shard.java
index 5b4f7ef8989711dffdf4cdd8fbe7d483165f23a7..221e874fd507b6ce1e52016ae09f33d9a0c5d514 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/Shard.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/Shard.java
@@ -20,15 +20,19 @@ import com.google.common.util.concurrent.ListenableFuture;
 import com.google.common.util.concurrent.ListeningExecutorService;
 import com.google.common.util.concurrent.MoreExecutors;
 import org.opendaylight.controller.cluster.datastore.messages.CommitTransactionReply;
+import org.opendaylight.controller.cluster.datastore.messages.CreateTransaction;
 import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionChain;
 import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionChainReply;
+import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionReply;
 import org.opendaylight.controller.cluster.datastore.messages.ForwardedCommitTransaction;
+import org.opendaylight.controller.cluster.datastore.messages.NonPersistent;
 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.modification.Modification;
 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
 import org.opendaylight.controller.md.sal.dom.store.impl.InMemoryDOMDataStore;
+import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
 import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransactionChain;
 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
@@ -60,7 +64,17 @@ public class Shard extends UntypedProcessor {
     private final LoggingAdapter log =
         Logging.getLogger(getContext().system(), this);
 
+    // By default persistent will be true and can be turned off using the system
+    // property persistent
+    private final boolean persistent;
+
     private Shard(String name) {
+
+        String setting = System.getProperty("shard.persistent");
+        this.persistent = !"false".equals(setting);
+
+        log.info("Creating shard : {} persistent : {}", name , persistent);
+
         store = new InMemoryDOMDataStore(name, storeExecutor);
     }
 
@@ -75,8 +89,11 @@ public class Shard extends UntypedProcessor {
         });
     }
 
+
     @Override
     public void onReceive(Object message) throws Exception {
+        log.debug("Received message {}", message);
+
         if (message instanceof CreateTransactionChain) {
             createTransactionChain();
         } else if (message instanceof RegisterChangeListener) {
@@ -86,12 +103,25 @@ public class Shard extends UntypedProcessor {
         } else if (message instanceof ForwardedCommitTransaction) {
             handleForwardedCommit((ForwardedCommitTransaction) message);
         } else if (message instanceof Persistent) {
-            commit((Persistent) message);
+            commit((Modification) ((Persistent) message).payload());
+        } else if (message instanceof CreateTransaction) {
+            createTransaction();
+        } else if(message instanceof NonPersistent){
+            commit((Modification) ((NonPersistent) message).payload());
         }
     }
 
-    private void commit(Persistent message) {
-        Modification modification = (Modification) message.payload();
+    private void createTransaction() {
+        DOMStoreReadWriteTransaction transaction =
+            store.newReadWriteTransaction();
+        ActorRef transactionActor = getContext().actorOf(
+            ShardTransaction.props(transaction, getSelf()));
+        getSender()
+            .tell(new CreateTransactionReply(transactionActor.path()),
+                getSelf());
+    }
+
+    private void commit(Modification modification) {
         DOMStoreThreePhaseCommitCohort cohort =
             modificationToCohort.remove(modification);
         if (cohort == null) {
@@ -119,8 +149,13 @@ public class Shard extends UntypedProcessor {
         log.info("received forwarded transaction");
         modificationToCohort
             .put(message.getModification(), message.getCohort());
-        getSelf().forward(Persistent.create(message.getModification()),
-            getContext());
+        if(persistent) {
+            getSelf().forward(Persistent.create(message.getModification()),
+                getContext());
+        } else {
+            getSelf().forward(NonPersistent.create(message.getModification()),
+                getContext());
+        }
     }
 
     private void updateSchemaContext(UpdateSchemaContext message) {
@@ -130,18 +165,19 @@ public class Shard extends UntypedProcessor {
     private void registerChangeListener(
         RegisterChangeListener registerChangeListener) {
 
-        ActorSelection listenerRegistrationActor = getContext()
+        ActorSelection dataChangeListenerPath = getContext()
             .system().actorSelection(registerChangeListener.getDataChangeListenerPath());
 
         AsyncDataChangeListener<InstanceIdentifier, NormalizedNode<?, ?>>
-            listener = new ListenerProxy(listenerRegistrationActor);
+            listener = new DataChangeListenerProxy(dataChangeListenerPath);
 
         org.opendaylight.yangtools.concepts.ListenerRegistration<AsyncDataChangeListener<InstanceIdentifier, NormalizedNode<?, ?>>>
             registration =
             store.registerChangeListener(registerChangeListener.getPath(),
                 listener, registerChangeListener.getScope());
         ActorRef listenerRegistration =
-            getContext().actorOf(ListenerRegistration.props(registration));
+            getContext().actorOf(
+                DataChangeListenerRegistration.props(registration));
         getSender()
             .tell(new RegisterChangeListenerReply(listenerRegistration.path()),
                 getSelf());