opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/DirectTransactionCommitCohort.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 static java.util.Objects.requireNonNull;
  11
  12 import com.google.common.util.concurrent.ListenableFuture;
  13 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
  14
  15 /**
  16  * An {@link AbstractTransactionCommitCohort} implementation for transactions which contain a single proxy. Since there
  17  * is only one proxy,
  18  *
  19  * @author Robert Varga
  20  */
  21 final class DirectTransactionCommitCohort extends AbstractTransactionCommitCohort {
  22     private final AbstractProxyTransaction proxy;
  23
  24     DirectTransactionCommitCohort(final AbstractClientHistory parent, final TransactionIdentifier txId,
  25         final AbstractProxyTransaction proxy) {
  26         super(parent, txId);
  27         this.proxy = requireNonNull(proxy);
  28     }
  29
  30     @Override
  31     public ListenableFuture<Boolean> canCommit() {
  32         return proxy.directCommit();
  33     }
  34
  35     @Override
  36     public ListenableFuture<Void> preCommit() {
  37         return VOID_FUTURE;
  38     }
  39
  40     @Override
  41     public ListenableFuture<Void> abort() {
  42         complete();
  43         return VOID_FUTURE;
  44     }
  45
  46     @Override
  47     public ListenableFuture<Void> commit() {
  48         complete();
  49         return VOID_FUTURE;
  50     }
  51 }