netconf/netconf-topology-singleton/src/main/java/org/opendaylight/netconf/topology/singleton/impl/actors/ReadWriteTransactionActor.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.Props;
  12 import akka.actor.ReceiveTimeout;
  13 import akka.actor.UntypedAbstractActor;
  14 import org.opendaylight.controller.md.sal.dom.api.DOMDataReadWriteTransaction;
  15 import org.opendaylight.netconf.topology.singleton.messages.transactions.ReadActorMessage;
  16 import org.opendaylight.netconf.topology.singleton.messages.transactions.WriteActorMessage;
  17 import org.slf4j.Logger;
  18 import org.slf4j.LoggerFactory;
  19 import scala.concurrent.duration.Duration;
  20
  21 public final class ReadWriteTransactionActor extends UntypedAbstractActor {
  22
  23     private static final Logger LOG = LoggerFactory.getLogger(ReadWriteTransactionActor.class);
  24
  25     private final DOMDataReadWriteTransaction tx;
  26     private final long idleTimeout;
  27     private final ReadAdapter readAdapter;
  28     private final WriteAdapter writeAdapter;
  29
  30     private ReadWriteTransactionActor(final DOMDataReadWriteTransaction tx, final Duration idleTimeout) {
  31         this.tx = tx;
  32         this.idleTimeout = idleTimeout.toSeconds();
  33         if (this.idleTimeout > 0) {
  34             context().setReceiveTimeout(idleTimeout);
  35         }
  36         readAdapter = new ReadAdapter(tx);
  37         writeAdapter = new WriteAdapter(tx);
  38     }
  39
  40     /**
  41      * Creates new actor Props.
  42      *
  43      * @param tx          delegate device read write transaction
  44      * @param idleTimeout idle time in seconds, after which transaction is closed automatically
  45      * @return props
  46      */
  47     static Props props(final DOMDataReadWriteTransaction tx, final Duration idleTimeout) {
  48         return Props.create(ReadWriteTransactionActor.class, () -> new ReadWriteTransactionActor(tx, idleTimeout));
  49     }
  50
  51     @Override
  52     public void onReceive(final Object message) throws Throwable {
  53         if (message instanceof ReadActorMessage) {
  54             readAdapter.handle(message, sender(), self());
  55         } else if (message instanceof WriteActorMessage) {
  56             writeAdapter.handle(message, sender(), context(), self());
  57         } else if (message instanceof ReceiveTimeout) {
  58             LOG.warn("Haven't received any message for {} seconds, cancelling transaction and stopping actor",
  59                     idleTimeout);
  60             tx.cancel();
  61             context().stop(self());
  62         } else {
  63             unhandled(message);
  64         }
  65     }
  66
  67 }