netconf/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/actors/WriteAdapter.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies s.r.o. 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.netconf.topology.singleton.impl.actors;
   9
  10 import akka.actor.ActorContext;
  11 import akka.actor.ActorRef;
  12 import akka.actor.Status.Failure;
  13 import akka.actor.Status.Success;
  14 import com.google.common.util.concurrent.FluentFuture;
  15 import com.google.common.util.concurrent.FutureCallback;
  16 import com.google.common.util.concurrent.MoreExecutors;
  17 import javax.annotation.Nonnull;
  18 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  19 import org.opendaylight.mdsal.common.api.CommitInfo;
  20 import org.opendaylight.netconf.topology.singleton.messages.NormalizedNodeMessage;
  21 import org.opendaylight.netconf.topology.singleton.messages.transactions.CancelRequest;
  22 import org.opendaylight.netconf.topology.singleton.messages.transactions.DeleteRequest;
  23 import org.opendaylight.netconf.topology.singleton.messages.transactions.MergeRequest;
  24 import org.opendaylight.netconf.topology.singleton.messages.transactions.PutRequest;
  25 import org.opendaylight.netconf.topology.singleton.messages.transactions.SubmitRequest;
  26 import org.slf4j.Logger;
  27 import org.slf4j.LoggerFactory;
  28
  29 class WriteAdapter {
  30
  31     private static final Logger LOG = LoggerFactory.getLogger(WriteAdapter.class);
  32
  33     private final DOMDataWriteTransaction tx;
  34
  35     WriteAdapter(final DOMDataWriteTransaction tx) {
  36         this.tx = tx;
  37     }
  38
  39     private void cancel(final ActorContext context, final ActorRef sender, final ActorRef self) {
  40         final boolean cancelled = tx.cancel();
  41         sender.tell(cancelled, self);
  42         context.stop(self);
  43     }
  44
  45     private void submit(final ActorRef requester, final ActorRef self, final ActorContext context) {
  46         final FluentFuture<? extends CommitInfo> submitFuture = tx.commit();
  47         context.stop(self);
  48         submitFuture.addCallback(new FutureCallback<CommitInfo>() {
  49             @Override
  50             public void onSuccess(final CommitInfo result) {
  51                 requester.tell(new Success(null), self);
  52             }
  53
  54             @Override
  55             public void onFailure(@Nonnull final Throwable throwable) {
  56                 requester.tell(new Failure(throwable), self);
  57             }
  58         }, MoreExecutors.directExecutor());
  59     }
  60
  61     @SuppressWarnings("checkstyle:IllegalCatch")
  62     public void handle(final Object message, final ActorRef sender, final ActorContext context, final ActorRef self) {
  63         // we need to catch everything, since an unchecked exception can be thrown from the underlying parse.
  64         // TODO Maybe we should store it and fail the submit immediately?.
  65         try {
  66             if (message instanceof MergeRequest) {
  67                 final MergeRequest mergeRequest = (MergeRequest) message;
  68                 final NormalizedNodeMessage data = mergeRequest.getNormalizedNodeMessage();
  69                 tx.merge(mergeRequest.getStore(), data.getIdentifier(), data.getNode());
  70             } else if (message instanceof PutRequest) {
  71                 final PutRequest putRequest = (PutRequest) message;
  72                 final NormalizedNodeMessage data = putRequest.getNormalizedNodeMessage();
  73                 tx.put(putRequest.getStore(), data.getIdentifier(), data.getNode());
  74             } else if (message instanceof DeleteRequest) {
  75                 final DeleteRequest deleteRequest = (DeleteRequest) message;
  76                 tx.delete(deleteRequest.getStore(), deleteRequest.getPath());
  77             } else if (message instanceof CancelRequest) {
  78                 cancel(context, sender, self);
  79             } else if (message instanceof SubmitRequest) {
  80                 submit(sender, self, context);
  81             }
  82
  83         } catch (final RuntimeException exception) {
  84             LOG.error("Write command has failed.", exception);
  85         }
  86     }
  87 }