opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/SingleClientHistory.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 org.opendaylight.controller.cluster.access.client.AbstractClientConnection;
  11 import org.opendaylight.controller.cluster.access.concepts.LocalHistoryIdentifier;
  12 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
  13 import org.slf4j.Logger;
  14 import org.slf4j.LoggerFactory;
  15
  16 /**
  17  * An {@link AbstractClientHistory} which handles free-standing transactions.
  18  *
  19  * @author Robert Varga
  20  */
  21 final class SingleClientHistory extends AbstractClientHistory {
  22     private static final Logger LOG = LoggerFactory.getLogger(AbstractClientHistory.class);
  23
  24     SingleClientHistory(final AbstractDataStoreClientBehavior client, final LocalHistoryIdentifier identifier) {
  25         super(client, identifier);
  26     }
  27
  28     @Override
  29     ClientTransaction doCreateTransaction() {
  30         final TransactionIdentifier txId = new TransactionIdentifier(getIdentifier(), nextTx());
  31         LOG.debug("{}: creating a new transaction {}", this, txId);
  32
  33         return new ClientTransaction(this, txId);
  34     }
  35
  36     @Override
  37     ProxyHistory createHistoryProxy(final LocalHistoryIdentifier historyId,
  38             final AbstractClientConnection<ShardBackendInfo> connection) {
  39         return ProxyHistory.createSingle(connection, historyId);
  40     }
  41 }