dlg99 commented on code in PR #19153:
URL: https://github.com/apache/pulsar/pull/19153#discussion_r1087342514
##########
pulsar-broker/src/main/java/org/apache/pulsar/broker/service/BrokerService.java:
##########
@@ -1033,17 +1047,33 @@ public CompletableFuture<Optional<Topic>>
getTopic(final TopicName topicName, bo
});
} else {
return topics.computeIfAbsent(topicName.toString(), (name) -> {
+ topicEventsDispatcher.notify(topicName.toString(),
TopicEvent.LOAD, EventStage.BEFORE);
if (topicName.isPartitioned()) {
final TopicName partitionedTopicName =
TopicName.get(topicName.getPartitionedTopicName());
return
this.fetchPartitionedTopicMetadataAsync(partitionedTopicName).thenCompose((metadata)
-> {
if (topicName.getPartitionIndex() <
metadata.partitions) {
- return createNonPersistentTopic(name);
+ topicEventsDispatcher
+ .notify(topicName.toString(),
TopicEvent.CREATE, EventStage.BEFORE);
+
+ CompletableFuture<Optional<Topic>> res =
createNonPersistentTopic(name);
+
+ topicEventsDispatcher.notifyOnCompletion(res,
topicName.toString(), TopicEvent.CREATE);
+ topicEventsDispatcher.notifyOnCompletion(res,
topicName.toString(), TopicEvent.LOAD);
Review Comment:
The events come up in expected order.
From TopicEventsListenerTest:
```java
public void testEventsPersistentPartitionedTopic() throws Exception {
String topicName = "persistent://" + namespace + "/P-NP";
topicNameToWatch = topicName + "-partition-1";
admin.topics().createPartitionedTopic(topicName, 2);
triggerPartitionsCreation(topicName);
Awaitility.waitAtMost(10, TimeUnit.SECONDS).untilAsserted(() ->
Assert.assertEquals(events.toArray(), new String[]{
"LOAD__BEFORE",
"CREATE__BEFORE",
"CREATE__SUCCESS",
"LOAD__SUCCESS"
})
);
...
```
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