opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/databroker/actors/dds/ClientTransactionCommitCohort.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.collect.ImmutableList;
  11 import com.google.common.util.concurrent.ListenableFuture;
  12 import java.util.Collection;
  13 import java.util.List;
  14
  15 final class ClientTransactionCommitCohort extends AbstractTransactionCommitCohort {
  16     private final List<AbstractProxyTransaction> proxies;
  17
  18     /**
  19      * @param clientTransaction
  20      */
  21     ClientTransactionCommitCohort(final Collection<AbstractProxyTransaction> proxies) {
  22         this.proxies = ImmutableList.copyOf(proxies);
  23     }
  24
  25     @Override
  26     public ListenableFuture<Boolean> canCommit() {
  27         /*
  28          * Issue the request to commit for all participants. We will track the results and report them.
  29          */
  30         final VotingFuture<Boolean> ret = new VotingFuture<>(Boolean.TRUE, proxies.size());
  31         for (AbstractProxyTransaction proxy : proxies) {
  32             proxy.canCommit(ret);
  33         }
  34
  35         return ret;
  36     }
  37
  38     @Override
  39     public ListenableFuture<Void> preCommit() {
  40         final VotingFuture<Void> ret = new VotingFuture<>(null, proxies.size());
  41         for (AbstractProxyTransaction proxy : proxies) {
  42             proxy.preCommit(ret);
  43         }
  44
  45         return ret;
  46     }
  47
  48     @Override
  49     public ListenableFuture<Void> commit() {
  50         final VotingFuture<Void> ret = new VotingFuture<>(null, proxies.size());
  51         for (AbstractProxyTransaction proxy : proxies) {
  52             proxy.doCommit(ret);
  53         }
  54
  55         return ret;
  56     }
  57
  58     @Override
  59     public ListenableFuture<Void> abort() {
  60         final VotingFuture<Void> ret = new VotingFuture<>(null, proxies.size());
  61         for (AbstractProxyTransaction proxy : proxies) {
  62             proxy.abort(ret);
  63         }
  64
  65         return ret;
  66     }
  67 }