opendaylight/md-sal/sal-distributed-datastore/src/main/java/org/opendaylight/controller/cluster/datastore/NoOpTransactionContext.java

   1 /*
   2  * Copyright (c) 2015 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.datastore;
   9
  10 import akka.actor.ActorSelection;
  11 import com.google.common.util.concurrent.SettableFuture;
  12 import java.util.Optional;
  13 import java.util.SortedSet;
  14 import org.opendaylight.controller.cluster.access.concepts.TransactionIdentifier;
  15 import org.opendaylight.controller.cluster.datastore.exceptions.NoShardLeaderException;
  16 import org.opendaylight.controller.cluster.datastore.messages.AbstractRead;
  17 import org.opendaylight.mdsal.common.api.DataStoreUnavailableException;
  18 import org.opendaylight.mdsal.common.api.ReadFailedException;
  19 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
  20 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
  21 import org.slf4j.Logger;
  22 import org.slf4j.LoggerFactory;
  23 import scala.concurrent.Future;
  24
  25 final class NoOpTransactionContext extends TransactionContext {
  26     private static final Logger LOG = LoggerFactory.getLogger(NoOpTransactionContext.class);
  27
  28     private final Throwable failure;
  29
  30     NoOpTransactionContext(final Throwable failure, final TransactionIdentifier identifier) {
  31         super(identifier);
  32         this.failure = failure;
  33     }
  34
  35     @Override
  36     void closeTransaction() {
  37         LOG.debug("NoOpTransactionContext {} closeTransaction called", getIdentifier());
  38     }
  39
  40     @Override
  41     Future<Object> directCommit(final Boolean havePermit) {
  42         LOG.debug("Tx {} directCommit called, failure", getIdentifier(), failure);
  43         return akka.dispatch.Futures.failed(failure);
  44     }
  45
  46     @Override
  47     Future<ActorSelection> readyTransaction(final Boolean havePermit,
  48             final Optional<SortedSet<String>> participatingShardNamess) {
  49         LOG.debug("Tx {} readyTransaction called, failure", getIdentifier(), failure);
  50         return akka.dispatch.Futures.failed(failure);
  51     }
  52
  53     @Override
  54     <T> void executeRead(final AbstractRead<T> readCmd, final SettableFuture<T> proxyFuture, final Boolean havePermit) {
  55         LOG.debug("Tx {} executeRead {} called path = {}", getIdentifier(), readCmd.getClass().getSimpleName(),
  56                 readCmd.getPath());
  57
  58         final Throwable t;
  59         if (failure instanceof NoShardLeaderException) {
  60             t = new DataStoreUnavailableException(failure.getMessage(), failure);
  61         } else {
  62             t = failure;
  63         }
  64         proxyFuture.setException(new ReadFailedException("Error executeRead " + readCmd.getClass().getSimpleName()
  65                 + " for path " + readCmd.getPath(), t));
  66     }
  67
  68     @Override
  69     void executeDelete(final YangInstanceIdentifier path, final Boolean havePermit) {
  70         LOG.debug("Tx {} executeDelete called path = {}", getIdentifier(), path);
  71     }
  72
  73     @Override
  74     void executeMerge(final YangInstanceIdentifier path, final NormalizedNode data, final Boolean havePermit) {
  75         LOG.debug("Tx {} executeMerge called path = {}", getIdentifier(), path);
  76     }
  77
  78     @Override
  79     void executeWrite(final YangInstanceIdentifier path, final NormalizedNode data, final Boolean havePermit) {
  80         LOG.debug("Tx {} executeWrite called path = {}", getIdentifier(), path);
  81     }
  82 }