Merge "Implementation of ModuleShardStrategy"

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

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/TransactionProxy.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/TransactionProxy.java
index c12276134e99c0bff0e9f3dc6c3d61550c39e4ad..2f784dc9506540448be304a68856103a704b72bf 100644 (file)
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/TransactionProxy.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/TransactionProxy.java
@@ -15,7 +15,6 @@ import com.google.common.util.concurrent.ListenableFuture;
 import com.google.common.util.concurrent.ListenableFutureTask;
 import org.opendaylight.controller.cluster.datastore.messages.CloseTransaction;
 import org.opendaylight.controller.cluster.datastore.messages.CreateTransaction;
-import org.opendaylight.controller.cluster.datastore.messages.CreateTransactionReply;
 import org.opendaylight.controller.cluster.datastore.messages.DeleteData;
 import org.opendaylight.controller.cluster.datastore.messages.MergeData;
 import org.opendaylight.controller.cluster.datastore.messages.ReadData;
@@ -23,18 +22,21 @@ import org.opendaylight.controller.cluster.datastore.messages.ReadDataReply;
 import org.opendaylight.controller.cluster.datastore.messages.ReadyTransaction;
 import org.opendaylight.controller.cluster.datastore.messages.ReadyTransactionReply;
 import org.opendaylight.controller.cluster.datastore.messages.WriteData;
+import org.opendaylight.controller.cluster.datastore.shardstrategy.ShardStrategyFactory;
 import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
+import org.opendaylight.controller.protobuff.messages.transaction.ShardTransactionMessages.CreateTransactionReply;
 import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
 import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.opendaylight.yangtools.yang.model.api.SchemaContext;
 
 import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.concurrent.Callable;
-import java.util.concurrent.Executors;
+import java.util.concurrent.ExecutorService;
 import java.util.concurrent.atomic.AtomicLong;
 
 /**
@@ -50,7 +52,6 @@ import java.util.concurrent.atomic.AtomicLong;
  * </p>
  */
 public class TransactionProxy implements DOMStoreReadWriteTransaction {
-
     public enum TransactionType {
         READ_ONLY,
         WRITE_ONLY,
@@ -63,34 +64,43 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
     private final ActorContext actorContext;
     private final Map<String, ActorSelection> remoteTransactionPaths = new HashMap<>();
     private final String identifier;
+    private final ExecutorService executor;
+    private final SchemaContext schemaContext;
 
     public TransactionProxy(
         ActorContext actorContext,
-        TransactionType transactionType) {
+        TransactionType transactionType,
+        ExecutorService executor,
+        SchemaContext schemaContext
+        ) {
 
-        this.identifier = "transaction-" + counter.getAndIncrement();
+        this.identifier = "txn-" + counter.getAndIncrement();
         this.transactionType = transactionType;
         this.actorContext = actorContext;
+        this.executor = executor;
+        this.schemaContext = schemaContext;
+
 
-        Object response = actorContext.executeShardOperation(Shard.DEFAULT_NAME, new CreateTransaction(), ActorContext.ASK_DURATION);
-        if(response instanceof CreateTransactionReply){
-            CreateTransactionReply reply = (CreateTransactionReply) response;
-            remoteTransactionPaths.put(Shard.DEFAULT_NAME, actorContext.actorSelection(reply.getTransactionPath()));
-        }
     }
 
     @Override
     public ListenableFuture<Optional<NormalizedNode<?, ?>>> read(final InstanceIdentifier path) {
+
+        createTransactionIfMissing(actorContext, path);
+
         final ActorSelection remoteTransaction = remoteTransactionFromIdentifier(path);
 
         Callable<Optional<NormalizedNode<?,?>>> call = new Callable() {
 
             @Override public Optional<NormalizedNode<?,?>> call() throws Exception {
                 Object response = actorContext
-                    .executeRemoteOperation(remoteTransaction, new ReadData(path),
+                    .executeRemoteOperation(remoteTransaction, new ReadData(path).toSerializable(),
                         ActorContext.ASK_DURATION);
-                if(response instanceof ReadDataReply){
-                    ReadDataReply reply = (ReadDataReply) response;
+                if(response.getClass().equals(ReadDataReply.SERIALIZABLE_CLASS)){
+                    ReadDataReply reply = ReadDataReply.fromSerializable(schemaContext,path, response);
+                    if(reply.getNormalizedNode() == null){
+                        return Optional.absent();
+                    }
                     //FIXME : A cast should not be required here ???
                     return (Optional<NormalizedNode<?, ?>>) Optional.of(reply.getNormalizedNode());
                 }
@@ -102,28 +112,36 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
         ListenableFutureTask<Optional<NormalizedNode<?, ?>>>
             future = ListenableFutureTask.create(call);
 
-        //FIXME : Use a thread pool here
-        Executors.newSingleThreadExecutor().submit(future);
+        executor.submit(future);
 
         return future;
     }
 
     @Override
     public void write(InstanceIdentifier path, NormalizedNode<?, ?> data) {
+
+        createTransactionIfMissing(actorContext, path);
+
         final ActorSelection remoteTransaction = remoteTransactionFromIdentifier(path);
-        remoteTransaction.tell(new WriteData(path, data), null);
+        remoteTransaction.tell(new WriteData(path, data, schemaContext).toSerializable(), null);
     }
 
     @Override
     public void merge(InstanceIdentifier path, NormalizedNode<?, ?> data) {
+
+        createTransactionIfMissing(actorContext, path);
+
         final ActorSelection remoteTransaction = remoteTransactionFromIdentifier(path);
-        remoteTransaction.tell(new MergeData(path, data), null);
+        remoteTransaction.tell(new MergeData(path, data, schemaContext).toSerializable(), null);
     }
 
     @Override
     public void delete(InstanceIdentifier path) {
+
+        createTransactionIfMissing(actorContext, path);
+
         final ActorSelection remoteTransaction = remoteTransactionFromIdentifier(path);
-        remoteTransaction.tell(new DeleteData(path), null);
+        remoteTransaction.tell(new DeleteData(path).toSerializable(), null);
     }
 
     @Override
@@ -142,7 +160,7 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
             }
         }
 
-        return new ThreePhaseCommitCohortProxy(actorContext, cohortPaths);
+        return new ThreePhaseCommitCohortProxy(actorContext, cohortPaths, identifier, executor);
     }
 
     @Override
@@ -163,6 +181,26 @@ public class TransactionProxy implements DOMStoreReadWriteTransaction {
     }
 
     private String shardNameFromIdentifier(InstanceIdentifier path){
-        return Shard.DEFAULT_NAME;
+        return ShardStrategyFactory.getStrategy(path).findShard(path);
+    }
+
+    private void createTransactionIfMissing(ActorContext actorContext, InstanceIdentifier path) {
+        String shardName = ShardStrategyFactory.getStrategy(path).findShard(path);
+
+        ActorSelection actorSelection =
+            remoteTransactionPaths.get(shardName);
+
+        if(actorSelection != null){
+            // A transaction already exists with that shard
+            return;
+        }
+
+        Object response = actorContext.executeShardOperation(shardName, new CreateTransaction(identifier), ActorContext.ASK_DURATION);
+        if(response instanceof CreateTransactionReply){
+            CreateTransactionReply reply = (CreateTransactionReply) response;
+            remoteTransactionPaths.put(shardName, actorContext.actorSelection(reply.getTransactionActorPath()));
+        }
     }
+
+
 }