Technoboy- commented on a change in pull request #13876:
URL: https://github.com/apache/pulsar/pull/13876#discussion_r789588729
##########
File path:
pulsar-broker/src/main/java/org/apache/pulsar/broker/admin/impl/PersistentTopicsBase.java
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@@ -2383,42 +2383,51 @@ private PositionImpl calculatePositionAckSet(boolean
isExcluded, int batchSize,
protected void internalGetMessageById(AsyncResponse asyncResponse, long
ledgerId, long entryId,
boolean authoritative) {
- try {
- // will redirect if the topic not owned by current broker
- validateTopicOwnership(topicName, authoritative);
- validateTopicOperation(topicName, TopicOperation.PEEK_MESSAGES);
-
- if (topicName.isGlobal()) {
- validateGlobalNamespaceOwnership(namespaceName);
- }
- PersistentTopic topic = (PersistentTopic)
getTopicReference(topicName);
- ManagedLedgerImpl ledger = (ManagedLedgerImpl)
topic.getManagedLedger();
- ledger.asyncReadEntry(new PositionImpl(ledgerId, entryId), new
AsyncCallbacks.ReadEntryCallback() {
- @Override
- public void readEntryFailed(ManagedLedgerException exception,
Object ctx) {
- asyncResponse.resume(new RestException(exception));
- }
-
- @Override
- public void readEntryComplete(Entry entry, Object ctx) {
- try {
- asyncResponse.resume(generateResponseWithEntry(entry));
- } catch (IOException exception) {
- asyncResponse.resume(new RestException(exception));
- } finally {
- if (entry != null) {
- entry.release();
- }
+ // will redirect if the topic not owned by current broker
+ validateTopicOwnershipAsync(topicName, authoritative)
+ .thenCompose(__ -> validateTopicOperationAsync(topicName,
TopicOperation.PEEK_MESSAGES))
+ .thenCompose(__ -> {
+ CompletableFuture<Void> ret;
+ if (topicName.isGlobal()) {
+ ret =
validateGlobalNamespaceOwnershipAsync(namespaceName);
+ } else {
+ ret = CompletableFuture.completedFuture(null);
}
- }
- }, null);
- } catch (NullPointerException npe) {
- asyncResponse.resume(new RestException(Status.NOT_FOUND, "Message
not found"));
- } catch (Exception exception) {
- log.error("[{}] Failed to get message with ledgerId {} entryId {}
from {}",
- clientAppId(), ledgerId, entryId, topicName, exception);
- asyncResponse.resume(new RestException(exception));
- }
+ return ret.thenCompose(ignore -> {
+ return getTopicReferenceAsync(topicName)
+ .thenAccept(topic -> {
Review comment:
@codelipenghui If topic does not exist, getTopicReferenceAsync will
throw exception.
And I have updated the logic. Thanks for the reminder.
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