Yunyung commented on code in PR #20372:
URL: https://github.com/apache/kafka/pull/20372#discussion_r2283783540
##########
tools/src/main/java/org/apache/kafka/tools/LogCompactionTester.java:
##########
@@ -408,8 +410,9 @@ producerProps, new ByteArraySerializer(), new
ByteArraySerializer())) {
try (BufferedWriter producedWriter = Files.newBufferedWriter(
producedFilePath, StandardCharsets.UTF_8)) {
- for (long i = 0; i < messages * topics.length; i++) {
- String topic = topics[(int) (i % topics.length)];
+ String[] topicsArray = topics.toArray(new String[0]);
Review Comment:
How about
List<String> topicsList = List.copyOf(topics);
...
String topic = topicList.get((int) (i % size));
##########
tools/src/main/java/org/apache/kafka/tools/LogCompactionTester.java:
##########
@@ -430,14 +433,14 @@ record = new ProducerRecord<>(topic,
}
}
- private static Path consumeMessages(String brokerUrl, String[] topics)
throws IOException {
+ private static Path consumeMessages(String brokerUrl, Set<String> topics)
throws IOException {
Path consumedFilePath =
Files.createTempFile("kafka-log-cleaner-consumed-", ".txt");
System.out.println("Logging consumed messages to " + consumedFilePath);
try (Consumer<String, String> consumer = createConsumer(brokerUrl);
BufferedWriter consumedWriter =
Files.newBufferedWriter(consumedFilePath, StandardCharsets.UTF_8)) {
- consumer.subscribe(Arrays.asList(topics));
+ consumer.subscribe(new ArrayList<>(topics));
Review Comment:
We can use `consumer.subscribe(topics)` directly;
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