ijuma commented on code in PR #18801:
URL: https://github.com/apache/kafka/pull/18801#discussion_r1941425411
##########
core/src/main/scala/kafka/server/metadata/KRaftMetadataCache.scala:
##########
@@ -345,68 +344,69 @@ class KRaftMetadataCache(
Option(_currentImage.cluster.broker(brokerId)).count(_.inControlledShutdown) ==
1
}
- override def getAliveBrokers(): Iterable[BrokerMetadata] =
getAliveBrokers(_currentImage)
+ override def getAliveBrokers(): util.List[BrokerMetadata] =
getAliveBrokers(_currentImage)
- private def getAliveBrokers(image: MetadataImage): Iterable[BrokerMetadata]
= {
+ private def getAliveBrokers(image: MetadataImage): util.List[BrokerMetadata]
= {
image.cluster().brokers().values().asScala.filterNot(_.fenced()).
map(b => new BrokerMetadata(b.id, b.rack))
- }
+ }.toList.asJava
- override def getAliveBrokerNode(brokerId: Int, listenerName: ListenerName):
Option[Node] = {
- Option(_currentImage.cluster().broker(brokerId)).filterNot(_.fenced()).
- flatMap(_.node(listenerName.value()).toScala)
+ override def getAliveBrokerNode(brokerId: Int, listenerName: ListenerName):
util.Optional[Node] = {
+ util.Optional.ofNullable(_currentImage.cluster().broker(brokerId))
+ .filter(broker => !broker.fenced())
+ .flatMap(broker => broker.node(listenerName.value()))
}
- override def getAliveBrokerNodes(listenerName: ListenerName): Seq[Node] = {
+ override def getAliveBrokerNodes(listenerName: ListenerName):
util.List[Node] = {
_currentImage.cluster().brokers().values().asScala.filterNot(_.fenced()).
Review Comment:
We should remove `asScala` from here and use `stream` instead.
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