opendaylight/md-sal/eos-dom-akka/src/main/java/org/opendaylight/controller/eos/akka/owner/supervisor/AbstractSupervisor.java

   1 /*
   2  * Copyright (c) 2022 PANTHEON.tech, 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.controller.eos.akka.owner.supervisor;
   9
  10 import akka.actor.typed.ActorRef;
  11 import akka.actor.typed.Behavior;
  12 import akka.actor.typed.javadsl.AbstractBehavior;
  13 import akka.actor.typed.javadsl.ActorContext;
  14 import akka.cluster.ddata.ORMap;
  15 import akka.cluster.ddata.ORSet;
  16 import akka.cluster.ddata.typed.javadsl.DistributedData;
  17 import akka.cluster.ddata.typed.javadsl.Replicator;
  18 import akka.cluster.ddata.typed.javadsl.ReplicatorMessageAdapter;
  19 import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
  20 import java.time.Duration;
  21 import org.opendaylight.controller.eos.akka.owner.supervisor.command.ClearCandidates;
  22 import org.opendaylight.controller.eos.akka.owner.supervisor.command.ClearCandidatesForMember;
  23 import org.opendaylight.controller.eos.akka.owner.supervisor.command.ClearCandidatesResponse;
  24 import org.opendaylight.controller.eos.akka.owner.supervisor.command.OwnerSupervisorCommand;
  25 import org.opendaylight.controller.eos.akka.registry.candidate.CandidateRegistry;
  26 import org.opendaylight.mdsal.eos.dom.api.DOMEntity;
  27 import org.slf4j.Logger;
  28
  29 abstract class AbstractSupervisor extends AbstractBehavior<OwnerSupervisorCommand> {
  30
  31     final ReplicatorMessageAdapter<OwnerSupervisorCommand, ORMap<DOMEntity, ORSet<String>>> candidateReplicator;
  32
  33     @SuppressFBWarnings(value = "MC_OVERRIDABLE_METHOD_CALL_IN_CONSTRUCTOR",
  34         justification = "getContext() is non-final")
  35     AbstractSupervisor(final ActorContext<OwnerSupervisorCommand> context) {
  36         super(context);
  37
  38         final ActorRef<Replicator.Command> replicator = DistributedData.get(getContext().getSystem()).replicator();
  39         candidateReplicator = new ReplicatorMessageAdapter<>(getContext(), replicator, Duration.ofSeconds(5));
  40     }
  41
  42     Behavior<OwnerSupervisorCommand> onClearCandidatesForMember(final ClearCandidatesForMember command) {
  43         getLogger().debug("Clearing candidates for member: {}", command.getCandidate());
  44
  45         candidateReplicator.askGet(
  46                 askReplyTo -> new Replicator.Get<>(CandidateRegistry.KEY,
  47                         new Replicator.ReadMajority(Duration.ofSeconds(15)), askReplyTo),
  48                 response -> new ClearCandidates(response, command));
  49
  50         return this;
  51     }
  52
  53     Behavior<OwnerSupervisorCommand> finishClearCandidates(final ClearCandidates command) {
  54         if (command.getResponse() instanceof Replicator.GetSuccess) {
  55             getLogger().debug("Retrieved candidate data, clearing candidates for {}",
  56                     command.getOriginalMessage().getCandidate());
  57
  58             getContext().spawnAnonymous(CandidateCleaner.create()).tell(command);
  59         } else {
  60             getLogger().debug("Unable to retrieve candidate data for {}, no candidates present sending empty reply",
  61                     command.getOriginalMessage().getCandidate());
  62             command.getOriginalMessage().getReplyTo().tell(new ClearCandidatesResponse());
  63         }
  64
  65         return this;
  66     }
  67
  68     abstract Logger getLogger();
  69 }