opendaylight/md-sal/sal-inmemory-datastore/src/main/java/org/opendaylight/controller/md/sal/dom/store/impl/ChainedTransactionCommitImpl.java

   1 /*
   2  * Copyright (c) 2014 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.md.sal.dom.store.impl;
   9
  10 import com.google.common.base.Preconditions;
  11 import com.google.common.util.concurrent.FutureCallback;
  12 import com.google.common.util.concurrent.Futures;
  13 import com.google.common.util.concurrent.ListenableFuture;
  14 import org.opendaylight.controller.sal.core.spi.data.DOMStoreThreePhaseCommitCohort;
  15 import org.opendaylight.controller.sal.core.spi.data.ForwardingDOMStoreThreePhaseCommitCohort;
  16 import org.opendaylight.controller.sal.core.spi.data.SnapshotBackedWriteTransaction;
  17
  18 final class ChainedTransactionCommitImpl extends ForwardingDOMStoreThreePhaseCommitCohort {
  19     private final SnapshotBackedWriteTransaction<String> transaction;
  20     private final DOMStoreThreePhaseCommitCohort delegate;
  21     private final DOMStoreTransactionChainImpl txChain;
  22
  23     ChainedTransactionCommitImpl(final SnapshotBackedWriteTransaction<String> transaction,
  24             final DOMStoreThreePhaseCommitCohort delegate, final DOMStoreTransactionChainImpl txChain) {
  25         this.transaction = Preconditions.checkNotNull(transaction);
  26         this.delegate = Preconditions.checkNotNull(delegate);
  27         this.txChain = Preconditions.checkNotNull(txChain);
  28     }
  29
  30     @Override
  31     protected DOMStoreThreePhaseCommitCohort delegate() {
  32         return delegate;
  33     }
  34
  35     @Override
  36     public ListenableFuture<Void> commit() {
  37         ListenableFuture<Void> commitFuture = super.commit();
  38         Futures.addCallback(commitFuture, new FutureCallback<Void>() {
  39             @Override
  40             public void onFailure(final Throwable t) {
  41                 txChain.transactionFailed(transaction, t);
  42             }
  43
  44             @Override
  45             public void onSuccess(final Void result) {
  46                 txChain.transactionCommited(transaction);
  47             }
  48         });
  49         return commitFuture;
  50     }
  51
  52 }