bbejeck commented on code in PR #17781:
URL: https://github.com/apache/kafka/pull/17781#discussion_r1847507152
##########
clients/src/test/java/org/apache/kafka/clients/consumer/KafkaConsumerTest.java:
##########
@@ -224,6 +232,117 @@ public void cleanup() {
}
}
+ @ParameterizedTest
+ @EnumSource(GroupProtocol.class)
+ public void
testSubscribingCustomMetricsDoesntAffectConsumerMetrics(GroupProtocol
groupProtocol) {
+ Properties props = new Properties();
+ props.setProperty(ConsumerConfig.GROUP_PROTOCOL_CONFIG,
groupProtocol.name());
+ props.setProperty(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG,
"localhost:9999");
+ consumer = newConsumer(props, new StringDeserializer(), new
StringDeserializer());
+
+ Map<MetricName, KafkaMetric> customMetrics = customMetrics();
+ customMetrics.forEach((name, metric) ->
consumer.registerMetricForSubscription(metric));
+
+ Map<MetricName, ? extends Metric> consumerMetrics = consumer.metrics();
+ customMetrics.forEach((name, metric) ->
assertFalse(consumerMetrics.containsKey(name)));
+ }
+
+ @ParameterizedTest
+ @EnumSource(GroupProtocol.class)
+ public void
testSubscribingCustomMetricsWithSameNameDoesntAffectConsumerMetrics(GroupProtocol
groupProtocol) {
+ Properties props = new Properties();
+ props.setProperty(ConsumerConfig.GROUP_PROTOCOL_CONFIG,
groupProtocol.name());
+ props.setProperty(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG,
"localhost:9999");
+ consumer = newConsumer(props, new StringDeserializer(), new
StringDeserializer());
+
+ Map<MetricName, ? extends Metric> sortedMetrics = new
LinkedHashMap<>(consumer.metrics());
+ KafkaMetric firstMetric = (KafkaMetric)
sortedMetrics.entrySet().iterator().next().getValue();
+
+ Object lock = new Object();
+ MetricName metricNameCopy = new
MetricName(firstMetric.metricName().name(), firstMetric.metricName().group(),
firstMetric.metricName().description(), firstMetric.metricName().tags());
+ KafkaMetric metricCopy = new KafkaMetric(lock, metricNameCopy,
firstMetric.measurable(), firstMetric.config(), Time.SYSTEM);
+ consumer.registerMetricForSubscription(metricCopy);
Review Comment:
ack, done
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