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
   9 package org.opendaylight.netconf.topology.singleton.impl.actors;
  10
  11 import akka.actor.ActorContext;
  12 import akka.actor.ActorRef;
  13 import akka.actor.Status.Failure;
  14 import akka.actor.Status.Success;
  15 import com.google.common.util.concurrent.CheckedFuture;
  16 import com.google.common.util.concurrent.FutureCallback;
  17 import com.google.common.util.concurrent.Futures;
  18 import com.google.common.util.concurrent.MoreExecutors;
  19 import javax.annotation.Nonnull;
  20 import org.opendaylight.controller.md.sal.common.api.data.TransactionCommitFailedException;
  21 import org.opendaylight.controller.md.sal.dom.api.DOMDataWriteTransaction;
  22 import org.opendaylight.netconf.topology.singleton.messages.NormalizedNodeMessage;
  23 import org.opendaylight.netconf.topology.singleton.messages.transactions.CancelRequest;
  24 import org.opendaylight.netconf.topology.singleton.messages.transactions.DeleteRequest;
  25 import org.opendaylight.netconf.topology.singleton.messages.transactions.MergeRequest;
  26 import org.opendaylight.netconf.topology.singleton.messages.transactions.PutRequest;
  27 import org.opendaylight.netconf.topology.singleton.messages.transactions.SubmitRequest;
  28 import org.slf4j.Logger;
  29 import org.slf4j.LoggerFactory;
  30
  31 class WriteAdapter {
  32
  33     private static final Logger LOG = LoggerFactory.getLogger(WriteAdapter.class);
  34
  35     private final DOMDataWriteTransaction tx;
  36
  37     WriteAdapter(final DOMDataWriteTransaction tx) {
  38         this.tx = tx;
  39     }
  40
  41     private void cancel(final ActorContext context, final ActorRef sender, final ActorRef self) {
  42         final boolean cancelled = tx.cancel();
  43         sender.tell(cancelled, self);
  44         context.stop(self);
  45     }
  46
  47     private void submit(final ActorRef requester, final ActorRef self, final ActorContext context) {
  48         final CheckedFuture<Void, TransactionCommitFailedException> submitFuture = tx.submit();
  49         context.stop(self);
  50         Futures.addCallback(submitFuture, new FutureCallback<Void>() {
  51             @Override
  52             public void onSuccess(final Void result) {
  53                 requester.tell(new Success(null), self);
  54             }
  55
  56             @Override
  57             public void onFailure(@Nonnull final Throwable throwable) {
  58                 requester.tell(new Failure(throwable), self);
  59             }
  60         }, MoreExecutors.directExecutor());
  61     }
  62
  63     @SuppressWarnings("checkstyle:IllegalCatch")
  64     public void handle(final Object message, final ActorRef sender, final ActorContext context, final ActorRef self) {
  65         // we need to catch everything, since an unchecked exception can be thrown from the underlying parse.
  66         // TODO Maybe we should store it and fail the submit immediately?.
  67         try {
  68             if (message instanceof MergeRequest) {
  69                 final MergeRequest mergeRequest = (MergeRequest) message;
  70                 final NormalizedNodeMessage data = mergeRequest.getNormalizedNodeMessage();
  71                 tx.merge(mergeRequest.getStore(), data.getIdentifier(), data.getNode());
  72             } else if (message instanceof PutRequest) {
  73                 final PutRequest putRequest = (PutRequest) message;
  74                 final NormalizedNodeMessage data = putRequest.getNormalizedNodeMessage();
  75                 tx.put(putRequest.getStore(), data.getIdentifier(), data.getNode());
  76             } else if (message instanceof DeleteRequest) {
  77                 final DeleteRequest deleteRequest = (DeleteRequest) message;
  78                 tx.delete(deleteRequest.getStore(), deleteRequest.getPath());
  79             } else if (message instanceof CancelRequest) {
  80                 cancel(context, sender, self);
  81             } else if (message instanceof SubmitRequest) {
  82                 submit(sender, self, context);
  83             }
  84
  85         } catch (final RuntimeException exception) {
  86             LOG.error("Write command has failed.", exception);
  87         }
  88     }
  89 }