BUG-5280: eliminate ShardTransactionIdentifier
[controller.git] / opendaylight / md-sal / sal-distributed-datastore / src / main / java / org / opendaylight / controller / cluster / datastore / ShardWriteTransaction.java
index 21c210daf252fc4633b12882bb18dfea99779aa5..4ae54d3e5f727856c93a6f896e7630f21e11c10d 100644 (file)
@@ -1,35 +1,23 @@
 /*
+ * Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
+ * Copyright (c) 2015 Brocade Communications Systems, Inc. and others.  All rights reserved.
  *
- *  Copyright (c) 2014 Cisco Systems, Inc. and others.  All rights reserved.
- *
- *  This program and the accompanying materials are made available under the
- *  terms of the Eclipse Public License v1.0 which accompanies this distribution,
- *  and is available at http://www.eclipse.org/legal/epl-v10.html
- *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
  */
 
 package org.opendaylight.controller.cluster.datastore;
 
 import akka.actor.ActorRef;
+import akka.actor.PoisonPill;
 import org.opendaylight.controller.cluster.datastore.jmx.mbeans.shard.ShardStats;
-import org.opendaylight.controller.cluster.datastore.messages.DeleteData;
-import org.opendaylight.controller.cluster.datastore.messages.DeleteDataReply;
+import org.opendaylight.controller.cluster.datastore.messages.BatchedModifications;
+import org.opendaylight.controller.cluster.datastore.messages.BatchedModificationsReply;
+import org.opendaylight.controller.cluster.datastore.messages.DataExists;
 import org.opendaylight.controller.cluster.datastore.messages.ForwardedReadyTransaction;
-import org.opendaylight.controller.cluster.datastore.messages.MergeData;
-import org.opendaylight.controller.cluster.datastore.messages.MergeDataReply;
-import org.opendaylight.controller.cluster.datastore.messages.ReadyTransaction;
-import org.opendaylight.controller.cluster.datastore.messages.WriteData;
-import org.opendaylight.controller.cluster.datastore.messages.WriteDataReply;
-import org.opendaylight.controller.cluster.datastore.modification.CompositeModification;
-import org.opendaylight.controller.cluster.datastore.modification.DeleteModification;
-import org.opendaylight.controller.cluster.datastore.modification.ImmutableCompositeModification;
-import org.opendaylight.controller.cluster.datastore.modification.MergeModification;
-import org.opendaylight.controller.cluster.datastore.modification.MutableCompositeModification;
-import org.opendaylight.controller.cluster.datastore.modification.WriteModification;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreTransaction;
-import org.opendaylight.controller.sal.core.spi.data.DOMStoreWriteTransaction;
-import org.opendaylight.yangtools.yang.model.api.SchemaContext;
+import org.opendaylight.controller.cluster.datastore.messages.ReadData;
+import org.opendaylight.controller.cluster.datastore.modification.Modification;
 
 /**
  * @author: syedbahm
@@ -37,126 +25,95 @@ import org.opendaylight.yangtools.yang.model.api.SchemaContext;
  */
 public class ShardWriteTransaction extends ShardTransaction {
 
-    private final MutableCompositeModification modification = new MutableCompositeModification();
-    private final DOMStoreWriteTransaction transaction;
+    private int totalBatchedModificationsReceived;
+    private Exception lastBatchedModificationsException;
+    private final ReadWriteShardDataTreeTransaction transaction;
 
-    public ShardWriteTransaction(DOMStoreWriteTransaction transaction, ActorRef shardActor,
-            SchemaContext schemaContext, ShardStats shardStats, String transactionID) {
-        super(shardActor, schemaContext, shardStats, transactionID);
+    public ShardWriteTransaction(ReadWriteShardDataTreeTransaction transaction, ActorRef shardActor,
+            ShardStats shardStats) {
+        super(shardActor, shardStats, transaction.getId());
         this.transaction = transaction;
     }
 
     @Override
-    protected DOMStoreTransaction getDOMStoreTransaction() {
+    protected ReadWriteShardDataTreeTransaction getDOMStoreTransaction() {
         return transaction;
     }
 
     @Override
-    public void handleReceive(Object message) throws Exception {
-
-        if (message instanceof WriteData) {
-            writeData(transaction, (WriteData) message, !SERIALIZED_REPLY);
-
-        } else if (message instanceof MergeData) {
-            mergeData(transaction, (MergeData) message, !SERIALIZED_REPLY);
-
-        } else if (message instanceof DeleteData) {
-            deleteData(transaction, (DeleteData) message, !SERIALIZED_REPLY);
-
-        } else if (message instanceof ReadyTransaction) {
-            readyTransaction(transaction, new ReadyTransaction(), !SERIALIZED_REPLY);
-
-        } else if(WriteData.SERIALIZABLE_CLASS.equals(message.getClass())) {
-            writeData(transaction, WriteData.fromSerializable(message, getSchemaContext()), SERIALIZED_REPLY);
-
-        } else if(MergeData.SERIALIZABLE_CLASS.equals(message.getClass())) {
-            mergeData(transaction, MergeData.fromSerializable(message, getSchemaContext()), SERIALIZED_REPLY);
-
-        } else if(DeleteData.SERIALIZABLE_CLASS.equals(message.getClass())) {
-            deleteData(transaction, DeleteData.fromSerializable(message), SERIALIZED_REPLY);
-
-        } else if(ReadyTransaction.SERIALIZABLE_CLASS.equals(message.getClass())) {
-            readyTransaction(transaction, new ReadyTransaction(), SERIALIZED_REPLY);
-
-        } else if (message instanceof GetCompositedModification) {
-            // This is here for testing only
-            getSender().tell(new GetCompositeModificationReply(
-                    new ImmutableCompositeModification(modification)), getSelf());
+    public void handleReceive(Object message) {
+        if (message instanceof BatchedModifications) {
+            batchedModifications((BatchedModifications)message);
         } else {
             super.handleReceive(message);
         }
     }
 
-    private void writeData(DOMStoreWriteTransaction transaction, WriteData message, boolean returnSerialized) {
-        modification.addModification(
-                new WriteModification(message.getPath(), message.getData(), getSchemaContext()));
-        if(LOG.isDebugEnabled()) {
-            LOG.debug("writeData at path : " + message.getPath().toString());
-        }
-        try {
-            transaction.write(message.getPath(), message.getData());
-            WriteDataReply writeDataReply = new WriteDataReply();
-            getSender().tell(returnSerialized ? writeDataReply.toSerializable() : writeDataReply,
-                getSelf());
-        }catch(Exception e){
-            getSender().tell(new akka.actor.Status.Failure(e), getSelf());
+    private void batchedModifications(BatchedModifications batched) {
+        if (checkClosed()) {
+            if (batched.isReady()) {
+                getSelf().tell(PoisonPill.getInstance(), getSelf());
+            }
+            return;
         }
-    }
 
-    private void mergeData(DOMStoreWriteTransaction transaction, MergeData message, boolean returnSerialized) {
-        modification.addModification(
-                new MergeModification(message.getPath(), message.getData(), getSchemaContext()));
-        if(LOG.isDebugEnabled()) {
-            LOG.debug("mergeData at path : " + message.getPath().toString());
-        }
         try {
-            transaction.merge(message.getPath(), message.getData());
-            MergeDataReply mergeDataReply = new MergeDataReply();
-            getSender().tell(returnSerialized ? mergeDataReply.toSerializable() : mergeDataReply ,
-                getSelf());
-        }catch(Exception e){
+            for(Modification modification: batched.getModifications()) {
+                modification.apply(transaction.getSnapshot());
+            }
+
+            totalBatchedModificationsReceived++;
+            if(batched.isReady()) {
+                if(lastBatchedModificationsException != null) {
+                    throw lastBatchedModificationsException;
+                }
+
+                if(totalBatchedModificationsReceived != batched.getTotalMessagesSent()) {
+                    throw new IllegalStateException(String.format(
+                            "The total number of batched messages received %d does not match the number sent %d",
+                            totalBatchedModificationsReceived, batched.getTotalMessagesSent()));
+                }
+
+                readyTransaction(false, batched.isDoCommitOnReady(), batched.getVersion());
+            } else {
+                getSender().tell(new BatchedModificationsReply(batched.getModifications().size()), getSelf());
+            }
+        } catch (Exception e) {
+            lastBatchedModificationsException = e;
             getSender().tell(new akka.actor.Status.Failure(e), getSelf());
-        }
-    }
 
-    private void deleteData(DOMStoreWriteTransaction transaction, DeleteData message, boolean returnSerialized) {
-        if(LOG.isDebugEnabled()) {
-            LOG.debug("deleteData at path : " + message.getPath().toString());
-        }
-        modification.addModification(new DeleteModification(message.getPath()));
-        try {
-            transaction.delete(message.getPath());
-            DeleteDataReply deleteDataReply = new DeleteDataReply();
-            getSender().tell(returnSerialized ? deleteDataReply.toSerializable() : deleteDataReply,
-                getSelf());
-        }catch(Exception e){
-            getSender().tell(new akka.actor.Status.Failure(e), getSelf());
+            if(batched.isReady()) {
+                getSelf().tell(PoisonPill.getInstance(), getSelf());
+            }
         }
     }
 
-    private void readyTransaction(DOMStoreWriteTransaction transaction, ReadyTransaction message, boolean returnSerialized) {
-        DOMStoreThreePhaseCommitCohort cohort =  transaction.ready();
-
-        getShardActor().forward(new ForwardedReadyTransaction(
-            getTransactionID(), cohort, modification, returnSerialized),
-                getContext());
+    protected final void dataExists(DataExists message) {
+        super.dataExists(transaction, message);
     }
 
-    // These classes are in here for test purposes only
+    protected final void readData(ReadData message) {
+        super.readData(transaction, message);
+    }
 
-    static class GetCompositedModification {
+    private boolean checkClosed() {
+        if (transaction.isClosed()) {
+            getSender().tell(new akka.actor.Status.Failure(new IllegalStateException("Transaction is closed, no modifications allowed")), getSelf());
+            return true;
+        } else {
+            return false;
+        }
     }
 
-    static class GetCompositeModificationReply {
-        private final CompositeModification modification;
+    private void readyTransaction(boolean returnSerialized, boolean doImmediateCommit, short clientTxVersion) {
+        String transactionID = getTransactionID();
 
+        LOG.debug("readyTransaction : {}", transactionID);
 
-        GetCompositeModificationReply(CompositeModification modification) {
-            this.modification = modification;
-        }
+        getShardActor().forward(new ForwardedReadyTransaction(transactionID, clientTxVersion,
+                transaction, doImmediateCommit), getContext());
 
-        public CompositeModification getModification() {
-            return modification;
-        }
+        // The shard will handle the commit from here so we're no longer needed - self-destruct.
+        getSelf().tell(PoisonPill.getInstance(), getSelf());
     }
 }