hachikuji commented on a change in pull request #11171:
URL: https://github.com/apache/kafka/pull/11171#discussion_r682206623
##########
File path: core/src/main/scala/kafka/cluster/Partition.scala
##########
@@ -313,14 +313,20 @@ class Partition(val topicPartition: TopicPartition,
}
def createLogIfNotExists(isNew: Boolean, isFutureReplica: Boolean,
offsetCheckpoints: OffsetCheckpoints, topicId: Option[Uuid]): Unit = {
- isFutureReplica match {
- case true if futureLog.isEmpty =>
- val log = createLog(isNew, isFutureReplica, offsetCheckpoints, topicId)
+ val logOpt = if (isFutureReplica) futureLog else log
+ if (logOpt.isEmpty) {
+ val log = createLog(isNew, isFutureReplica, offsetCheckpoints, topicId)
+ if (isFutureReplica)
this.futureLog = Option(log)
- case false if log.isEmpty =>
- val log = createLog(isNew, isFutureReplica, offsetCheckpoints, topicId)
+ else
this.log = Option(log)
- case _ => trace(s"${if (isFutureReplica) "Future Log" else "Log"}
already exists.")
+ } else {
+ trace(s"${if (isFutureReplica) "Future Log" else "Log"} already exists.")
+ logOpt.foreach { log =>
+ if (log.topicId.isEmpty) {
Review comment:
By the time we get here, I think we have already validated that the
topicid is consistent. Nevertheless, I wonder if it makes sense to let
`assignTopicId` validate the passed topicId? Currently it will just override
the value.
##########
File path: core/src/main/scala/kafka/cluster/Partition.scala
##########
@@ -313,14 +313,20 @@ class Partition(val topicPartition: TopicPartition,
}
def createLogIfNotExists(isNew: Boolean, isFutureReplica: Boolean,
offsetCheckpoints: OffsetCheckpoints, topicId: Option[Uuid]): Unit = {
- isFutureReplica match {
- case true if futureLog.isEmpty =>
- val log = createLog(isNew, isFutureReplica, offsetCheckpoints, topicId)
+ val logOpt = if (isFutureReplica) futureLog else log
Review comment:
Any better?
```scala
def createLogIfNotExists(isNew: Boolean, isFutureReplica: Boolean,
offsetCheckpoints: OffsetCheckpoints, topicId: Option[Uuid]): Unit = {
def maybeCreate(logOpt: Option[Log]): Log = {
logOpt match {
case Some(log) =>
trace(s"${if (isFutureReplica) "Future Log" else "Log"} already
exists.")
topicId.foreach(log.assignTopicId)
log
case None =>
createLog(isNew, isFutureReplica, offsetCheckpoints, topicId)
}
}
if (isFutureReplica) {
this.futureLog = Some(maybeCreate(this.futureLog))
} else {
this.log = Some(maybeCreate(this.log))
}
}
```
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
