-import org.opendaylight.controller.cluster.datastore.util.InstanceIdentifierUtils;
-import org.opendaylight.controller.protobuff.messages.transaction.ShardTransactionMessages;
+import com.google.common.base.Preconditions;
+import com.google.common.util.concurrent.FluentFuture;
+import com.google.common.util.concurrent.SettableFuture;
+import org.opendaylight.mdsal.common.api.ReadFailedException;
+import org.opendaylight.mdsal.dom.spi.store.DOMStoreReadTransaction;