*/
package org.opendaylight.controller.cluster.datastore;
+import static java.util.Objects.requireNonNull;
+
import akka.actor.ActorPath;
import akka.actor.ActorRef;
import akka.actor.ActorSelection;
import akka.actor.Props;
-import com.google.common.base.Preconditions;
/**
* Base class for factories instantiating delegates which are local to the
* @param <D> delegate type
* @param <M> message type
*/
-abstract class LeaderLocalDelegateFactory<M, D> extends DelegateFactory<M, D> {
+abstract class LeaderLocalDelegateFactory<M> {
private final Shard shard;
protected LeaderLocalDelegateFactory(final Shard shard) {
- this.shard = Preconditions.checkNotNull(shard);
+ this.shard = requireNonNull(shard);
}
protected final ActorRef getSelf() {
return shard.getContext().actorOf(props);
}
- protected final ActorSelection selectActor(ActorRef ref) {
+ protected final ActorSelection selectActor(final ActorRef ref) {
return shard.getContext().system().actorSelection(ref.path());
}
- protected final ActorSelection selectActor(ActorPath path) {
+ protected final ActorSelection selectActor(final ActorPath path) {
return shard.getContext().system().actorSelection(path);
}
/**
* Invoked whenever the local shard's leadership role changes.
*
- * @param isLeader true if the shard has become leader, false if it has
- * become a follower.
+ * @param isLeader true if the shard has become leader, false if it has become a follower.
* @param hasLeader true if the shard knows about leader ID
*/
abstract void onLeadershipChange(boolean isLeader, boolean hasLeader);