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