X-Git-Url: https://git.opendaylight.org/gerrit/gitweb?p=controller.git;a=blobdiff_plain;f=opendaylight%2Fmd-sal%2Fsal-distributed-datastore%2Fsrc%2Fmain%2Fjava%2Forg%2Fopendaylight%2Fcontroller%2Fcluster%2Fdatastore%2FShardDataTreeTransactionChain.java;h=7917ae0177f6a9f737cd59b04d314e67b841c95e;hp=9a8e89eb422c4b4f909e6a6c3ea97366d1ab01f2;hb=546cd1fd100dbaa36908b22c2f422320dbd8c4b2;hpb=5fd8e6506248cc34da72281a1662612f6c2b2f9a

diff --git a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardDataTreeTransactionChain.java b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardDataTreeTransactionChain.java
index 9a8e89eb42..7917ae0177 100644
--- a/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardDataTreeTransactionChain.java
+++ b/opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/ShardDataTreeTransactionChain.java
@@ -7,9 +7,12 @@
  */
 package org.opendaylight.controller.cluster.datastore;
 
+import static com.google.common.base.Preconditions.checkState;
+import static java.util.Objects.requireNonNull;
+
 import com.google.common.base.MoreObjects;
-import com.google.common.base.Preconditions;
-import javax.annotation.concurrent.NotThreadSafe;
+import java.util.Optional;
+import java.util.SortedSet;
 import org.opendaylight.controller.cluster.access.concepts.LocalHistoryIdentifier;
 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
 import org.opendaylight.yangtools.concepts.Identifiable;
@@ -19,11 +22,11 @@ import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
 /**
- * A transaction chain attached to a Shard.
+ * A transaction chain attached to a Shard. This class is NOT thread-safe.
  */
-@NotThreadSafe
 final class ShardDataTreeTransactionChain extends ShardDataTreeTransactionParent
         implements Identifiable<LocalHistoryIdentifier> {
+
     private static final Logger LOG = LoggerFactory.getLogger(ShardDataTreeTransactionChain.class);
     private final LocalHistoryIdentifier chainId;
     private final ShardDataTree dataTree;
@@ -33,26 +36,28 @@ final class ShardDataTreeTransactionChain extends ShardDataTreeTransactionParent
     private boolean closed;
 
     ShardDataTreeTransactionChain(final LocalHistoryIdentifier localHistoryIdentifier, final ShardDataTree dataTree) {
-        this.chainId = Preconditions.checkNotNull(localHistoryIdentifier);
-        this.dataTree = Preconditions.checkNotNull(dataTree);
+        this.chainId = requireNonNull(localHistoryIdentifier);
+        this.dataTree = requireNonNull(dataTree);
     }
 
     private DataTreeSnapshot getSnapshot() {
-        Preconditions.checkState(!closed, "TransactionChain %s has been closed", this);
-        Preconditions.checkState(openTransaction == null, "Transaction %s is open", openTransaction);
+        checkState(!closed, "TransactionChain %s has been closed", this);
+        checkState(openTransaction == null, "Transaction %s is open", openTransaction);
 
         if (previousTx == null) {
+            LOG.debug("Opening an unchained snapshot in {}", chainId);
             return dataTree.takeSnapshot();
-        } else {
-            return previousTx.getSnapshot();
         }
+
+        LOG.debug("Reusing a chained snapshot in {}", chainId);
+        return previousTx.getSnapshot();
     }
 
     ReadOnlyShardDataTreeTransaction newReadOnlyTransaction(final TransactionIdentifier txId) {
         final DataTreeSnapshot snapshot = getSnapshot();
         LOG.debug("Allocated read-only transaction {} snapshot {}", txId, snapshot);
 
-        return new ReadOnlyShardDataTreeTransaction(txId, snapshot);
+        return new ReadOnlyShardDataTreeTransaction(this, txId, snapshot);
     }
 
     ReadWriteShardDataTreeTransaction newReadWriteTransaction(final TransactionIdentifier txId) {
@@ -65,26 +70,34 @@ final class ShardDataTreeTransactionChain extends ShardDataTreeTransactionParent
 
     void close() {
         closed = true;
+        LOG.debug("Closing chain {}", chainId);
     }
 
     @Override
-    protected void abortTransaction(final AbstractShardDataTreeTransaction<?> transaction) {
+    void abortFromTransactionActor(final AbstractShardDataTreeTransaction<?> transaction) {
         if (transaction instanceof ReadWriteShardDataTreeTransaction) {
-            Preconditions.checkState(openTransaction != null,
-                    "Attempted to abort transaction %s while none is outstanding", transaction);
-            LOG.debug("Aborted transaction {}", transaction);
+            checkState(openTransaction != null, "Attempted to abort transaction %s while none is outstanding",
+                    transaction);
+            LOG.debug("Aborted open transaction {}", transaction);
             openTransaction = null;
         }
     }
 
     @Override
-    protected ShardDataTreeCohort finishTransaction(final ReadWriteShardDataTreeTransaction transaction) {
-        Preconditions.checkState(openTransaction != null,
-                "Attempted to finish transaction %s while none is outstanding", transaction);
+    void abortTransaction(final AbstractShardDataTreeTransaction<?> transaction, final Runnable callback) {
+        abortFromTransactionActor(transaction);
+        dataTree.abortTransaction(transaction, callback);
+    }
+
+    @Override
+    ShardDataTreeCohort finishTransaction(final ReadWriteShardDataTreeTransaction transaction,
+            final Optional<SortedSet<String>> participatingShardNames) {
+        checkState(openTransaction != null, "Attempted to finish transaction %s while none is outstanding",
+                transaction);
 
         // dataTree is finalizing ready the transaction, we just record it for the next
         // transaction in chain
-        final ShardDataTreeCohort delegate = dataTree.finishTransaction(transaction);
+        final ShardDataTreeCohort delegate = dataTree.finishTransaction(transaction, participatingShardNames);
         openTransaction = null;
         previousTx = transaction;
         LOG.debug("Committing transaction {}", transaction);
@@ -109,7 +122,14 @@ final class ShardDataTreeTransactionChain extends ShardDataTreeTransactionParent
     }
 
     @Override
-    ShardDataTreeCohort createReadyCohort(final TransactionIdentifier txId, final DataTreeModification modification) {
-        return dataTree.createReadyCohort(txId, modification);
+    ShardDataTreeCohort createFailedCohort(final TransactionIdentifier txId, final DataTreeModification mod,
+            final Exception failure) {
+        return dataTree.createFailedCohort(txId, mod, failure);
+    }
+
+    @Override
+    ShardDataTreeCohort createReadyCohort(final TransactionIdentifier txId, final DataTreeModification mod,
+            final Optional<SortedSet<String>> participatingShardNames) {
+        return dataTree.createReadyCohort(txId, mod, participatingShardNames);
     }
 }