import akka.pattern.Patterns;
import akka.util.Timeout;
import com.google.common.annotations.VisibleForTesting;
-import com.google.common.base.Optional;
import com.google.common.base.Preconditions;
import com.google.common.base.Strings;
-import edu.umd.cs.findbugs.annotations.SuppressFBWarnings;
import java.util.Collection;
+import java.util.Optional;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import java.util.concurrent.TimeUnit;
@Override
public DOMEntityOwnershipListenerRegistration registerListener(final String entityType,
final DOMEntityOwnershipListener listener) {
- Preconditions.checkNotNull(entityType, "entityType cannot be null");
- Preconditions.checkNotNull(listener, "listener cannot be null");
-
RegisterListenerLocal registerListener = new RegisterListenerLocal(listener, entityType);
LOG.debug("Registering listener with message: {}", registerListener);
}
@Override
- @SuppressFBWarnings(value = "NP_NULL_PARAM_DEREF", justification = "Unrecognised NullableDecl")
public Optional<EntityOwnershipState> getOwnershipState(final DOMEntity forEntity) {
Preconditions.checkNotNull(forEntity, "forEntity cannot be null");
DataTree dataTree = getLocalEntityOwnershipShardDataTree();
if (dataTree == null) {
- return Optional.absent();
+ return Optional.empty();
}
- java.util.Optional<NormalizedNode<?, ?>> entityNode = dataTree.takeSnapshot().readNode(
+ Optional<NormalizedNode<?, ?>> entityNode = dataTree.takeSnapshot().readNode(
entityPath(forEntity.getType(), forEntity.getIdentifier()));
if (!entityNode.isPresent()) {
- return Optional.absent();
+ return Optional.empty();
}
// Check if there are any candidates, if there are none we do not really have ownership state
final MapEntryNode entity = (MapEntryNode) entityNode.get();
- final java.util.Optional<DataContainerChild<? extends PathArgument, ?>> optionalCandidates =
+ final Optional<DataContainerChild<? extends PathArgument, ?>> optionalCandidates =
entity.getChild(CANDIDATE_NODE_ID);
final boolean hasCandidates = optionalCandidates.isPresent()
&& ((MapNode) optionalCandidates.get()).getValue().size() > 0;
if (!hasCandidates) {
- return Optional.absent();
+ return Optional.empty();
}
MemberName localMemberName = context.getCurrentMemberName();
- java.util.Optional<DataContainerChild<? extends PathArgument, ?>> ownerLeaf = entity.getChild(
- ENTITY_OWNER_NODE_ID);
+ Optional<DataContainerChild<? extends PathArgument, ?>> ownerLeaf = entity.getChild(ENTITY_OWNER_NODE_ID);
String owner = ownerLeaf.isPresent() ? ownerLeaf.get().getValue().toString() : null;
boolean hasOwner = !Strings.isNullOrEmpty(owner);
boolean isOwner = hasOwner && localMemberName.getName().equals(owner);