BewareMyPower commented on code in PR #22485:
URL: https://github.com/apache/pulsar/pull/22485#discussion_r1562242272
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/loadbalance/extensions/ExtensibleLoadManagerImpl.java:
##########
@@ -496,30 +496,42 @@ public CompletableFuture<Optional<BrokerLookupData>>
assign(Optional<ServiceUnit
if (topic.isPresent() && isInternalTopic(topic.get().toString())) {
owner = serviceUnitStateChannel.getChannelOwnerAsync();
} else {
- String candidateBrokerId =
getHeartbeatOrSLAMonitorBrokerId(serviceUnit);
- if (candidateBrokerId != null) {
- owner =
CompletableFuture.completedFuture(Optional.of(candidateBrokerId));
- } else {
- owner = getOrSelectOwnerAsync(serviceUnit,
bundle).thenApply(Optional::ofNullable);
- }
+ owner =
getHeartbeatOrSLAMonitorBrokerId(serviceUnit).thenCompose(candidateBrokerId -> {
+ if (candidateBrokerId != null) {
+ return
CompletableFuture.completedFuture(Optional.of(candidateBrokerId));
+ }
+ return getOrSelectOwnerAsync(serviceUnit,
bundle).thenApply(Optional::ofNullable);
+ });
}
return getBrokerLookupData(owner, bundle);
});
}
- private String getHeartbeatOrSLAMonitorBrokerId(ServiceUnitId serviceUnit)
{
+ private CompletableFuture<String>
getHeartbeatOrSLAMonitorBrokerId(ServiceUnitId serviceUnit) {
Review Comment:
For example,
```java
public static CompletableFuture<String> getHeartbeatOrSLAMonitorBrokerId(
ServiceUnitId serviceUnit, LockManager<BrokerLookupData>
brokerLookupData) {
```
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