--- /dev/null
+/*
+ * 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
+ */
+package org.opendaylight.controller.md.sal.dom.store.impl;
+
+import org.opendaylight.controller.md.sal.dom.store.impl.tree.DataTreeSnapshot;
+import org.opendaylight.controller.sal.core.spi.data.DOMStoreReadWriteTransaction;
+import org.opendaylight.yangtools.yang.data.api.InstanceIdentifier;
+import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import com.google.common.base.Optional;
+import com.google.common.util.concurrent.Futures;
+import com.google.common.util.concurrent.ListenableFuture;
+
+/**
+ * Implementation of Read-Write transaction which is backed by {@link DataTreeSnapshot}
+ * and executed according to {@link TransactionReadyPrototype}.
+ *
+ */
+class SnapshotBackedReadWriteTransaction extends SnapshotBackedWriteTransaction implements
+DOMStoreReadWriteTransaction {
+
+ private static final Logger LOG = LoggerFactory.getLogger(SnapshotBackedReadWriteTransaction.class);
+
+ /**
+ * Creates new read-write transaction.
+ *
+ * @param identifier transaction Identifier
+ * @param snapshot Snapshot which will be modified.
+ * @param readyImpl Implementation of ready method.
+ */
+ protected SnapshotBackedReadWriteTransaction(final Object identifier, final DataTreeSnapshot snapshot,
+ final TransactionReadyPrototype store) {
+ super(identifier, snapshot, store);
+ }
+
+ @Override
+ public ListenableFuture<Optional<NormalizedNode<?, ?>>> read(final InstanceIdentifier path) {
+ LOG.debug("Tx: {} Read: {}", getIdentifier(), path);
+ try {
+ return Futures.immediateFuture(getMutatedView().readNode(path));
+ } catch (Exception e) {
+ LOG.error("Tx: {} Failed Read of {}", getIdentifier(), path, e);
+ throw e;
+ }
+ }
+}
\ No newline at end of file