--- /dev/null
+/*
+ * Copyright (c) 2015 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
+ */
+package org.opendaylight.controller.cluster.datastore;
+
+import akka.actor.ActorSelection;
+import com.google.common.base.Preconditions;
+import org.opendaylight.controller.cluster.datastore.identifiers.TransactionIdentifier;
+import org.opendaylight.controller.cluster.datastore.utils.ActorContext;
+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.SnapshotBackedTransactions;
+import org.opendaylight.controller.sal.core.spi.data.SnapshotBackedWriteTransaction;
+import org.opendaylight.controller.sal.core.spi.data.SnapshotBackedWriteTransaction.TransactionReadyPrototype;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
+import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTreeModification;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * {@link LocalTransactionFactory} for instantiating backing transactions which are
+ * disconnected from each other, ie not chained. These are used by {@link AbstractTransactionContextFactory}
+ * to instantiate transactions on shards which are co-located with the shard leader.
+ */
+final class LocalTransactionFactoryImpl extends TransactionReadyPrototype<TransactionIdentifier>
+ implements LocalTransactionFactory {
+
+ private static final Logger LOG = LoggerFactory.getLogger(LocalTransactionFactoryImpl.class);
+ private final ActorSelection leader;
+ private final DataTree dataTree;
+ private final ActorContext actorContext;
+
+ LocalTransactionFactoryImpl(final ActorContext actorContext, final ActorSelection leader, final DataTree dataTree) {
+ this.leader = Preconditions.checkNotNull(leader);
+ this.dataTree = Preconditions.checkNotNull(dataTree);
+ this.actorContext = actorContext;
+ }
+
+ DataTree getDataTree() {
+ return dataTree;
+ }
+
+ @Override
+ public DOMStoreReadWriteTransaction newReadWriteTransaction(TransactionIdentifier identifier) {
+ return SnapshotBackedTransactions.newReadWriteTransaction(identifier, false, dataTree.takeSnapshot(), this);
+ }
+
+ @Override
+ protected void transactionAborted(final SnapshotBackedWriteTransaction<TransactionIdentifier> tx) {
+ // No-op
+ }
+
+ @Override
+ protected DOMStoreThreePhaseCommitCohort transactionReady(final SnapshotBackedWriteTransaction<TransactionIdentifier> tx,
+ final DataTreeModification tree) {
+ return new LocalThreePhaseCommitCohort(actorContext, leader, tx, tree) {
+ @Override
+ protected void transactionAborted(final SnapshotBackedWriteTransaction<TransactionIdentifier> transaction) {
+ // No-op
+ LOG.debug("Transaction {} aborted", transaction);
+ }
+
+ @Override
+ protected void transactionCommitted(final SnapshotBackedWriteTransaction<TransactionIdentifier> transaction) {
+ // No-op
+ LOG.debug("Transaction {} committed", transaction);
+ }
+ };
+ }
+}