opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/LocalProxyHistory.java

   1 /*
   2  * Copyright (c) 2016 Cisco Systems, Inc. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.controller.cluster.databroker.actors.dds;
   9
  10 import com.google.common.base.Preconditions;
  11 import org.opendaylight.controller.cluster.access.concepts.LocalHistoryIdentifier;
  12 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
  13 import org.opendaylight.yangtools.yang.data.api.schema.tree.DataTree;
  14
  15 final class LocalProxyHistory extends AbstractProxyHistory {
  16     private final DataTree dataTree;
  17
  18     LocalProxyHistory(DistributedDataStoreClientBehavior client, LocalHistoryIdentifier identifier, DataTree dataTree) {
  19         super(client, identifier);
  20         this.dataTree = Preconditions.checkNotNull(dataTree);
  21     }
  22
  23     @Override
  24     AbstractProxyTransaction doCreateTransactionProxy(final DistributedDataStoreClientBehavior client,
  25             final TransactionIdentifier txId) {
  26         // FIXME: this violates history contract: we should use the last submitted transaction instead to ensure
  27         //        causality
  28         return new LocalProxyTransaction(client, txId, dataTree.takeSnapshot());
  29     }
  30 }