chia7712 commented on code in PR #19741: URL: https://github.com/apache/kafka/pull/19741#discussion_r2093347402
########## server/src/test/java/org/apache/kafka/api/EndToEndClusterIdTest.java: ########## @@ -0,0 +1,220 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.kafka.api; + +import org.apache.kafka.clients.consumer.Consumer; +import org.apache.kafka.clients.consumer.ConsumerConfig; +import org.apache.kafka.clients.consumer.ConsumerRecord; +import org.apache.kafka.clients.consumer.GroupProtocol; +import org.apache.kafka.clients.producer.Producer; +import org.apache.kafka.clients.producer.ProducerConfig; +import org.apache.kafka.clients.producer.ProducerRecord; +import org.apache.kafka.common.ClusterResource; +import org.apache.kafka.common.ClusterResourceListener; +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.test.ClusterInstance; +import org.apache.kafka.common.test.api.ClusterConfigProperty; +import org.apache.kafka.common.test.api.ClusterTest; +import org.apache.kafka.common.test.api.ClusterTestDefaults; +import org.apache.kafka.server.metrics.MetricConfigs; +import org.apache.kafka.test.MockConsumerInterceptor; +import org.apache.kafka.test.MockDeserializer; +import org.apache.kafka.test.MockMetricsReporter; +import org.apache.kafka.test.MockProducerInterceptor; +import org.apache.kafka.test.MockSerializer; +import org.apache.kafka.test.TestUtils; + +import org.junit.jupiter.api.Assertions; +import org.junit.jupiter.api.BeforeEach; + +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.concurrent.atomic.AtomicReference; + +import static org.apache.kafka.test.TestUtils.isValidClusterId; + +@ClusterTestDefaults(serverProperties = { + @ClusterConfigProperty(key = MetricConfigs.METRIC_REPORTER_CLASSES_CONFIG, value = "org.apache.kafka.api.EndToEndClusterIdTest$MockBrokerMetricsReporter"), +}) +public class EndToEndClusterIdTest { + + private static final String TOPIC = "e2etopic"; + private static final int PARTITION = 0; + private static final int NUM_RECORDS = 1; + private static final TopicPartition TP = new TopicPartition(TOPIC, PARTITION); + private static final Map<String, Object> PRODUCER_CONFIG = Map.of(ProducerConfig.INTERCEPTOR_CLASSES_CONFIG, MockProducerInterceptor.class.getName(), + "mock.interceptor.append", "mock", + ProducerConfig.METRIC_REPORTER_CLASSES_CONFIG, MockProducerMetricsReporter.class.getName(), + ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, MockSerializer.class.getName(), + ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, MockSerializer.class.getName()); + private static final Map<String, Object> CONSUMER_CONFIG = Map.of(ConsumerConfig.INTERCEPTOR_CLASSES_CONFIG, MockConsumerInterceptor.class.getName(), + ConsumerConfig.METRIC_REPORTER_CLASSES_CONFIG, MockConsumerMetricsReporter.class.getName(), + ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, MockDeserializer.class.getName(), + ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, MockDeserializer.class.getName()); + + + private final ClusterInstance clusterInstance; + + EndToEndClusterIdTest(ClusterInstance clusterInstance) { + this.clusterInstance = clusterInstance; + } + + @BeforeEach + public void setup() throws InterruptedException { + this.clusterInstance.createTopic(TOPIC, 2, (short) 1); + MockDeserializer.resetStaticVariables(); + } + + public static class MockConsumerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + public static class MockProducerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + public static class MockBrokerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + @ClusterTest + public void testEndToEndWithClassicProtocol(ClusterInstance clusterInstance) throws Exception { + testEndToEnd(GroupProtocol.CONSUMER, clusterInstance); + } + + @ClusterTest + public void testEndToEndWithConsumerProtocol(ClusterInstance clusterInstance) throws Exception { + testEndToEnd(GroupProtocol.CONSUMER, clusterInstance); + } + + public void testEndToEnd(GroupProtocol groupProtocol, ClusterInstance clusterInstance) throws Exception { + MockConsumerInterceptor.resetCounters(); + MockProducerInterceptor.resetCounters(); + + // Should have cluster id at broker metrics reporter after startup + Assertions.assertNotNull(MockBrokerMetricsReporter.CLUSTER_META); + isValidClusterId(MockBrokerMetricsReporter.CLUSTER_META.get().clusterId()); + + + // --- PRODUCER CONFIGURATION --- Review Comment: Excuse me, what is the purpose for this comment? ########## server/src/test/java/org/apache/kafka/api/EndToEndClusterIdTest.java: ########## @@ -0,0 +1,220 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.kafka.api; + +import org.apache.kafka.clients.consumer.Consumer; +import org.apache.kafka.clients.consumer.ConsumerConfig; +import org.apache.kafka.clients.consumer.ConsumerRecord; +import org.apache.kafka.clients.consumer.GroupProtocol; +import org.apache.kafka.clients.producer.Producer; +import org.apache.kafka.clients.producer.ProducerConfig; +import org.apache.kafka.clients.producer.ProducerRecord; +import org.apache.kafka.common.ClusterResource; +import org.apache.kafka.common.ClusterResourceListener; +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.test.ClusterInstance; +import org.apache.kafka.common.test.api.ClusterConfigProperty; +import org.apache.kafka.common.test.api.ClusterTest; +import org.apache.kafka.common.test.api.ClusterTestDefaults; +import org.apache.kafka.server.metrics.MetricConfigs; +import org.apache.kafka.test.MockConsumerInterceptor; +import org.apache.kafka.test.MockDeserializer; +import org.apache.kafka.test.MockMetricsReporter; +import org.apache.kafka.test.MockProducerInterceptor; +import org.apache.kafka.test.MockSerializer; +import org.apache.kafka.test.TestUtils; + +import org.junit.jupiter.api.Assertions; +import org.junit.jupiter.api.BeforeEach; + +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.concurrent.atomic.AtomicReference; + +import static org.apache.kafka.test.TestUtils.isValidClusterId; + +@ClusterTestDefaults(serverProperties = { + @ClusterConfigProperty(key = MetricConfigs.METRIC_REPORTER_CLASSES_CONFIG, value = "org.apache.kafka.api.EndToEndClusterIdTest$MockBrokerMetricsReporter"), +}) +public class EndToEndClusterIdTest { + + private static final String TOPIC = "e2etopic"; + private static final int PARTITION = 0; + private static final int NUM_RECORDS = 1; + private static final TopicPartition TP = new TopicPartition(TOPIC, PARTITION); + private static final Map<String, Object> PRODUCER_CONFIG = Map.of(ProducerConfig.INTERCEPTOR_CLASSES_CONFIG, MockProducerInterceptor.class.getName(), + "mock.interceptor.append", "mock", + ProducerConfig.METRIC_REPORTER_CLASSES_CONFIG, MockProducerMetricsReporter.class.getName(), + ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, MockSerializer.class.getName(), + ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, MockSerializer.class.getName()); + private static final Map<String, Object> CONSUMER_CONFIG = Map.of(ConsumerConfig.INTERCEPTOR_CLASSES_CONFIG, MockConsumerInterceptor.class.getName(), Review Comment: It seems `CONSUMER_CONFIG` could be a local variable, right? ########## server/src/test/java/org/apache/kafka/api/EndToEndClusterIdTest.java: ########## @@ -0,0 +1,220 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.kafka.api; + +import org.apache.kafka.clients.consumer.Consumer; +import org.apache.kafka.clients.consumer.ConsumerConfig; +import org.apache.kafka.clients.consumer.ConsumerRecord; +import org.apache.kafka.clients.consumer.GroupProtocol; +import org.apache.kafka.clients.producer.Producer; +import org.apache.kafka.clients.producer.ProducerConfig; +import org.apache.kafka.clients.producer.ProducerRecord; +import org.apache.kafka.common.ClusterResource; +import org.apache.kafka.common.ClusterResourceListener; +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.test.ClusterInstance; +import org.apache.kafka.common.test.api.ClusterConfigProperty; +import org.apache.kafka.common.test.api.ClusterTest; +import org.apache.kafka.common.test.api.ClusterTestDefaults; +import org.apache.kafka.server.metrics.MetricConfigs; +import org.apache.kafka.test.MockConsumerInterceptor; +import org.apache.kafka.test.MockDeserializer; +import org.apache.kafka.test.MockMetricsReporter; +import org.apache.kafka.test.MockProducerInterceptor; +import org.apache.kafka.test.MockSerializer; +import org.apache.kafka.test.TestUtils; + +import org.junit.jupiter.api.Assertions; +import org.junit.jupiter.api.BeforeEach; + +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.concurrent.atomic.AtomicReference; + +import static org.apache.kafka.test.TestUtils.isValidClusterId; + +@ClusterTestDefaults(serverProperties = { + @ClusterConfigProperty(key = MetricConfigs.METRIC_REPORTER_CLASSES_CONFIG, value = "org.apache.kafka.api.EndToEndClusterIdTest$MockBrokerMetricsReporter"), +}) +public class EndToEndClusterIdTest { + + private static final String TOPIC = "e2etopic"; + private static final int PARTITION = 0; + private static final int NUM_RECORDS = 1; + private static final TopicPartition TP = new TopicPartition(TOPIC, PARTITION); + private static final Map<String, Object> PRODUCER_CONFIG = Map.of(ProducerConfig.INTERCEPTOR_CLASSES_CONFIG, MockProducerInterceptor.class.getName(), Review Comment: ditto ########## server/src/test/java/org/apache/kafka/api/EndToEndClusterIdTest.java: ########## @@ -0,0 +1,220 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.kafka.api; + +import org.apache.kafka.clients.consumer.Consumer; +import org.apache.kafka.clients.consumer.ConsumerConfig; +import org.apache.kafka.clients.consumer.ConsumerRecord; +import org.apache.kafka.clients.consumer.GroupProtocol; +import org.apache.kafka.clients.producer.Producer; +import org.apache.kafka.clients.producer.ProducerConfig; +import org.apache.kafka.clients.producer.ProducerRecord; +import org.apache.kafka.common.ClusterResource; +import org.apache.kafka.common.ClusterResourceListener; +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.test.ClusterInstance; +import org.apache.kafka.common.test.api.ClusterConfigProperty; +import org.apache.kafka.common.test.api.ClusterTest; +import org.apache.kafka.common.test.api.ClusterTestDefaults; +import org.apache.kafka.server.metrics.MetricConfigs; +import org.apache.kafka.test.MockConsumerInterceptor; +import org.apache.kafka.test.MockDeserializer; +import org.apache.kafka.test.MockMetricsReporter; +import org.apache.kafka.test.MockProducerInterceptor; +import org.apache.kafka.test.MockSerializer; +import org.apache.kafka.test.TestUtils; + +import org.junit.jupiter.api.Assertions; +import org.junit.jupiter.api.BeforeEach; + +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.concurrent.atomic.AtomicReference; + +import static org.apache.kafka.test.TestUtils.isValidClusterId; + +@ClusterTestDefaults(serverProperties = { + @ClusterConfigProperty(key = MetricConfigs.METRIC_REPORTER_CLASSES_CONFIG, value = "org.apache.kafka.api.EndToEndClusterIdTest$MockBrokerMetricsReporter"), +}) +public class EndToEndClusterIdTest { + + private static final String TOPIC = "e2etopic"; + private static final int PARTITION = 0; + private static final int NUM_RECORDS = 1; + private static final TopicPartition TP = new TopicPartition(TOPIC, PARTITION); + private static final Map<String, Object> PRODUCER_CONFIG = Map.of(ProducerConfig.INTERCEPTOR_CLASSES_CONFIG, MockProducerInterceptor.class.getName(), + "mock.interceptor.append", "mock", + ProducerConfig.METRIC_REPORTER_CLASSES_CONFIG, MockProducerMetricsReporter.class.getName(), + ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, MockSerializer.class.getName(), + ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, MockSerializer.class.getName()); + private static final Map<String, Object> CONSUMER_CONFIG = Map.of(ConsumerConfig.INTERCEPTOR_CLASSES_CONFIG, MockConsumerInterceptor.class.getName(), + ConsumerConfig.METRIC_REPORTER_CLASSES_CONFIG, MockConsumerMetricsReporter.class.getName(), + ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, MockDeserializer.class.getName(), + ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, MockDeserializer.class.getName()); + + + private final ClusterInstance clusterInstance; + + EndToEndClusterIdTest(ClusterInstance clusterInstance) { + this.clusterInstance = clusterInstance; + } + + @BeforeEach + public void setup() throws InterruptedException { + this.clusterInstance.createTopic(TOPIC, 2, (short) 1); + MockDeserializer.resetStaticVariables(); + } + + public static class MockConsumerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + public static class MockProducerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + public static class MockBrokerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + @ClusterTest + public void testEndToEndWithClassicProtocol(ClusterInstance clusterInstance) throws Exception { + testEndToEnd(GroupProtocol.CONSUMER, clusterInstance); + } + + @ClusterTest + public void testEndToEndWithConsumerProtocol(ClusterInstance clusterInstance) throws Exception { + testEndToEnd(GroupProtocol.CONSUMER, clusterInstance); + } + + public void testEndToEnd(GroupProtocol groupProtocol, ClusterInstance clusterInstance) throws Exception { + MockConsumerInterceptor.resetCounters(); + MockProducerInterceptor.resetCounters(); + + // Should have cluster id at broker metrics reporter after startup + Assertions.assertNotNull(MockBrokerMetricsReporter.CLUSTER_META); + isValidClusterId(MockBrokerMetricsReporter.CLUSTER_META.get().clusterId()); + + + // --- PRODUCER CONFIGURATION --- + try (var producer = clusterInstance.<byte[], byte[]>producer(PRODUCER_CONFIG)) { + // Send one record and make sure clusterId is set after send and before onAcknowledgement + sendRecords(producer, NUM_RECORDS, TP); + } + + Assertions.assertNotEquals(MockProducerInterceptor.CLUSTER_ID_BEFORE_ON_ACKNOWLEDGEMENT.get(), MockProducerInterceptor.NO_CLUSTER_ID); + Assertions.assertNotNull(MockProducerInterceptor.CLUSTER_META); + Assertions.assertEquals( + MockProducerInterceptor.CLUSTER_ID_BEFORE_ON_ACKNOWLEDGEMENT.get().clusterId(), + MockProducerInterceptor.CLUSTER_META.get().clusterId() + ); + isValidClusterId(MockProducerInterceptor.CLUSTER_META.get().clusterId()); + + // Ensure the serializer sees Cluster ID before serialization + Assertions.assertNotEquals(MockSerializer.CLUSTER_ID_BEFORE_SERIALIZE.get(), MockSerializer.NO_CLUSTER_ID); + Assertions.assertNotNull(MockSerializer.CLUSTER_META); + isValidClusterId(MockSerializer.CLUSTER_META.get().clusterId()); + + // Producer metric reporter receives cluster id + Assertions.assertNotNull(MockProducerMetricsReporter.CLUSTER_META); + isValidClusterId(MockProducerMetricsReporter.CLUSTER_META.get().clusterId()); + + // --- CONSUMER CONFIGURATION --- + Map<String, Object> consumerConfigWithGroupProtocol = new HashMap<>(CONSUMER_CONFIG); + consumerConfigWithGroupProtocol.put(ConsumerConfig.GROUP_PROTOCOL_CONFIG, groupProtocol.name()); + try (var consumer = clusterInstance.<byte[], byte[]>consumer(consumerConfigWithGroupProtocol)) { + consumer.assign(Collections.singletonList(TP)); + consumer.seek(TP, 0); + // Consume one record + consumeRecords(consumer, NUM_RECORDS); + } + + // Cluster ID in consumer interceptor before onConsume + Assertions.assertNotEquals(MockConsumerInterceptor.CLUSTER_ID_BEFORE_ON_CONSUME.get(), MockConsumerInterceptor.NO_CLUSTER_ID); + Assertions.assertNotNull(MockConsumerInterceptor.CLUSTER_META); + isValidClusterId(MockConsumerInterceptor.CLUSTER_META.get().clusterId()); + Assertions.assertEquals( + MockConsumerInterceptor.CLUSTER_ID_BEFORE_ON_CONSUME.get().clusterId(), + MockConsumerInterceptor.CLUSTER_META.get().clusterId() + ); + + // Cluster ID in deserializer before deserialize + Assertions.assertNotEquals(MockDeserializer.clusterIdBeforeDeserialize.get(), MockDeserializer.noClusterId); + Assertions.assertNotNull(MockDeserializer.clusterMeta); + isValidClusterId(MockDeserializer.clusterMeta.get().clusterId()); + Assertions.assertEquals( + MockDeserializer.clusterIdBeforeDeserialize.get().clusterId(), + MockDeserializer.clusterMeta.get().clusterId() + ); + + Assertions.assertNotNull(MockConsumerMetricsReporter.CLUSTER_META); + isValidClusterId(MockConsumerMetricsReporter.CLUSTER_META.get().clusterId()); + + // All components received the same cluster id + String id = MockProducerInterceptor.CLUSTER_META.get().clusterId(); + Assertions.assertEquals(id, MockSerializer.CLUSTER_META.get().clusterId()); + Assertions.assertEquals(id, MockProducerMetricsReporter.CLUSTER_META.get().clusterId()); + Assertions.assertEquals(id, MockConsumerInterceptor.CLUSTER_META.get().clusterId()); + Assertions.assertEquals(id, MockDeserializer.clusterMeta.get().clusterId()); + Assertions.assertEquals(id, MockConsumerMetricsReporter.CLUSTER_META.get().clusterId()); + Assertions.assertEquals(id, MockBrokerMetricsReporter.CLUSTER_META.get().clusterId()); + + MockConsumerInterceptor.resetCounters(); + MockProducerInterceptor.resetCounters(); + } + + private static void sendRecords(Producer<byte[], byte[]> producer, int numRecords, TopicPartition tp) throws Exception { + for (int i = 0; i < numRecords; i++) { + ProducerRecord<byte[], byte[]> record = new ProducerRecord<>(tp.topic(), tp.partition(), ("" + i).getBytes(), ("" + i).getBytes()); Review Comment: `String.valueOf(i)` ########## server/src/test/java/org/apache/kafka/api/EndToEndClusterIdTest.java: ########## @@ -0,0 +1,220 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.kafka.api; + +import org.apache.kafka.clients.consumer.Consumer; +import org.apache.kafka.clients.consumer.ConsumerConfig; +import org.apache.kafka.clients.consumer.ConsumerRecord; +import org.apache.kafka.clients.consumer.GroupProtocol; +import org.apache.kafka.clients.producer.Producer; +import org.apache.kafka.clients.producer.ProducerConfig; +import org.apache.kafka.clients.producer.ProducerRecord; +import org.apache.kafka.common.ClusterResource; +import org.apache.kafka.common.ClusterResourceListener; +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.test.ClusterInstance; +import org.apache.kafka.common.test.api.ClusterConfigProperty; +import org.apache.kafka.common.test.api.ClusterTest; +import org.apache.kafka.common.test.api.ClusterTestDefaults; +import org.apache.kafka.server.metrics.MetricConfigs; +import org.apache.kafka.test.MockConsumerInterceptor; +import org.apache.kafka.test.MockDeserializer; +import org.apache.kafka.test.MockMetricsReporter; +import org.apache.kafka.test.MockProducerInterceptor; +import org.apache.kafka.test.MockSerializer; +import org.apache.kafka.test.TestUtils; + +import org.junit.jupiter.api.Assertions; +import org.junit.jupiter.api.BeforeEach; + +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.concurrent.atomic.AtomicReference; + +import static org.apache.kafka.test.TestUtils.isValidClusterId; + +@ClusterTestDefaults(serverProperties = { + @ClusterConfigProperty(key = MetricConfigs.METRIC_REPORTER_CLASSES_CONFIG, value = "org.apache.kafka.api.EndToEndClusterIdTest$MockBrokerMetricsReporter"), +}) +public class EndToEndClusterIdTest { + + private static final String TOPIC = "e2etopic"; + private static final int PARTITION = 0; + private static final int NUM_RECORDS = 1; + private static final TopicPartition TP = new TopicPartition(TOPIC, PARTITION); + private static final Map<String, Object> PRODUCER_CONFIG = Map.of(ProducerConfig.INTERCEPTOR_CLASSES_CONFIG, MockProducerInterceptor.class.getName(), + "mock.interceptor.append", "mock", + ProducerConfig.METRIC_REPORTER_CLASSES_CONFIG, MockProducerMetricsReporter.class.getName(), + ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, MockSerializer.class.getName(), + ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, MockSerializer.class.getName()); + private static final Map<String, Object> CONSUMER_CONFIG = Map.of(ConsumerConfig.INTERCEPTOR_CLASSES_CONFIG, MockConsumerInterceptor.class.getName(), + ConsumerConfig.METRIC_REPORTER_CLASSES_CONFIG, MockConsumerMetricsReporter.class.getName(), + ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, MockDeserializer.class.getName(), + ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, MockDeserializer.class.getName()); + + + private final ClusterInstance clusterInstance; + + EndToEndClusterIdTest(ClusterInstance clusterInstance) { + this.clusterInstance = clusterInstance; + } + + @BeforeEach + public void setup() throws InterruptedException { + this.clusterInstance.createTopic(TOPIC, 2, (short) 1); + MockDeserializer.resetStaticVariables(); + } + + public static class MockConsumerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + public static class MockProducerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + public static class MockBrokerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + @ClusterTest + public void testEndToEndWithClassicProtocol(ClusterInstance clusterInstance) throws Exception { + testEndToEnd(GroupProtocol.CONSUMER, clusterInstance); + } + + @ClusterTest + public void testEndToEndWithConsumerProtocol(ClusterInstance clusterInstance) throws Exception { + testEndToEnd(GroupProtocol.CONSUMER, clusterInstance); + } + + public void testEndToEnd(GroupProtocol groupProtocol, ClusterInstance clusterInstance) throws Exception { + MockConsumerInterceptor.resetCounters(); + MockProducerInterceptor.resetCounters(); + + // Should have cluster id at broker metrics reporter after startup + Assertions.assertNotNull(MockBrokerMetricsReporter.CLUSTER_META); + isValidClusterId(MockBrokerMetricsReporter.CLUSTER_META.get().clusterId()); + + + // --- PRODUCER CONFIGURATION --- + try (var producer = clusterInstance.<byte[], byte[]>producer(PRODUCER_CONFIG)) { + // Send one record and make sure clusterId is set after send and before onAcknowledgement + sendRecords(producer, NUM_RECORDS, TP); + } + + Assertions.assertNotEquals(MockProducerInterceptor.CLUSTER_ID_BEFORE_ON_ACKNOWLEDGEMENT.get(), MockProducerInterceptor.NO_CLUSTER_ID); + Assertions.assertNotNull(MockProducerInterceptor.CLUSTER_META); + Assertions.assertEquals( + MockProducerInterceptor.CLUSTER_ID_BEFORE_ON_ACKNOWLEDGEMENT.get().clusterId(), + MockProducerInterceptor.CLUSTER_META.get().clusterId() + ); + isValidClusterId(MockProducerInterceptor.CLUSTER_META.get().clusterId()); + + // Ensure the serializer sees Cluster ID before serialization + Assertions.assertNotEquals(MockSerializer.CLUSTER_ID_BEFORE_SERIALIZE.get(), MockSerializer.NO_CLUSTER_ID); + Assertions.assertNotNull(MockSerializer.CLUSTER_META); + isValidClusterId(MockSerializer.CLUSTER_META.get().clusterId()); + + // Producer metric reporter receives cluster id + Assertions.assertNotNull(MockProducerMetricsReporter.CLUSTER_META); + isValidClusterId(MockProducerMetricsReporter.CLUSTER_META.get().clusterId()); + + // --- CONSUMER CONFIGURATION --- Review Comment: ditto ########## server/src/test/java/org/apache/kafka/api/EndToEndClusterIdTest.java: ########## @@ -0,0 +1,220 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.kafka.api; + +import org.apache.kafka.clients.consumer.Consumer; +import org.apache.kafka.clients.consumer.ConsumerConfig; +import org.apache.kafka.clients.consumer.ConsumerRecord; +import org.apache.kafka.clients.consumer.GroupProtocol; +import org.apache.kafka.clients.producer.Producer; +import org.apache.kafka.clients.producer.ProducerConfig; +import org.apache.kafka.clients.producer.ProducerRecord; +import org.apache.kafka.common.ClusterResource; +import org.apache.kafka.common.ClusterResourceListener; +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.test.ClusterInstance; +import org.apache.kafka.common.test.api.ClusterConfigProperty; +import org.apache.kafka.common.test.api.ClusterTest; +import org.apache.kafka.common.test.api.ClusterTestDefaults; +import org.apache.kafka.server.metrics.MetricConfigs; +import org.apache.kafka.test.MockConsumerInterceptor; +import org.apache.kafka.test.MockDeserializer; +import org.apache.kafka.test.MockMetricsReporter; +import org.apache.kafka.test.MockProducerInterceptor; +import org.apache.kafka.test.MockSerializer; +import org.apache.kafka.test.TestUtils; + +import org.junit.jupiter.api.Assertions; +import org.junit.jupiter.api.BeforeEach; + +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.concurrent.atomic.AtomicReference; + +import static org.apache.kafka.test.TestUtils.isValidClusterId; + +@ClusterTestDefaults(serverProperties = { + @ClusterConfigProperty(key = MetricConfigs.METRIC_REPORTER_CLASSES_CONFIG, value = "org.apache.kafka.api.EndToEndClusterIdTest$MockBrokerMetricsReporter"), +}) +public class EndToEndClusterIdTest { + + private static final String TOPIC = "e2etopic"; + private static final int PARTITION = 0; + private static final int NUM_RECORDS = 1; + private static final TopicPartition TP = new TopicPartition(TOPIC, PARTITION); + private static final Map<String, Object> PRODUCER_CONFIG = Map.of(ProducerConfig.INTERCEPTOR_CLASSES_CONFIG, MockProducerInterceptor.class.getName(), + "mock.interceptor.append", "mock", + ProducerConfig.METRIC_REPORTER_CLASSES_CONFIG, MockProducerMetricsReporter.class.getName(), + ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, MockSerializer.class.getName(), + ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, MockSerializer.class.getName()); + private static final Map<String, Object> CONSUMER_CONFIG = Map.of(ConsumerConfig.INTERCEPTOR_CLASSES_CONFIG, MockConsumerInterceptor.class.getName(), + ConsumerConfig.METRIC_REPORTER_CLASSES_CONFIG, MockConsumerMetricsReporter.class.getName(), + ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, MockDeserializer.class.getName(), + ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, MockDeserializer.class.getName()); + + + private final ClusterInstance clusterInstance; + + EndToEndClusterIdTest(ClusterInstance clusterInstance) { + this.clusterInstance = clusterInstance; + } + + @BeforeEach + public void setup() throws InterruptedException { + this.clusterInstance.createTopic(TOPIC, 2, (short) 1); + MockDeserializer.resetStaticVariables(); + } + + public static class MockConsumerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + public static class MockProducerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + public static class MockBrokerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + @ClusterTest + public void testEndToEndWithClassicProtocol(ClusterInstance clusterInstance) throws Exception { + testEndToEnd(GroupProtocol.CONSUMER, clusterInstance); + } + + @ClusterTest + public void testEndToEndWithConsumerProtocol(ClusterInstance clusterInstance) throws Exception { + testEndToEnd(GroupProtocol.CONSUMER, clusterInstance); + } + + public void testEndToEnd(GroupProtocol groupProtocol, ClusterInstance clusterInstance) throws Exception { + MockConsumerInterceptor.resetCounters(); + MockProducerInterceptor.resetCounters(); + + // Should have cluster id at broker metrics reporter after startup + Assertions.assertNotNull(MockBrokerMetricsReporter.CLUSTER_META); + isValidClusterId(MockBrokerMetricsReporter.CLUSTER_META.get().clusterId()); + + + // --- PRODUCER CONFIGURATION --- + try (var producer = clusterInstance.<byte[], byte[]>producer(PRODUCER_CONFIG)) { + // Send one record and make sure clusterId is set after send and before onAcknowledgement + sendRecords(producer, NUM_RECORDS, TP); + } + + Assertions.assertNotEquals(MockProducerInterceptor.CLUSTER_ID_BEFORE_ON_ACKNOWLEDGEMENT.get(), MockProducerInterceptor.NO_CLUSTER_ID); + Assertions.assertNotNull(MockProducerInterceptor.CLUSTER_META); + Assertions.assertEquals( + MockProducerInterceptor.CLUSTER_ID_BEFORE_ON_ACKNOWLEDGEMENT.get().clusterId(), + MockProducerInterceptor.CLUSTER_META.get().clusterId() + ); + isValidClusterId(MockProducerInterceptor.CLUSTER_META.get().clusterId()); + + // Ensure the serializer sees Cluster ID before serialization + Assertions.assertNotEquals(MockSerializer.CLUSTER_ID_BEFORE_SERIALIZE.get(), MockSerializer.NO_CLUSTER_ID); + Assertions.assertNotNull(MockSerializer.CLUSTER_META); + isValidClusterId(MockSerializer.CLUSTER_META.get().clusterId()); + + // Producer metric reporter receives cluster id + Assertions.assertNotNull(MockProducerMetricsReporter.CLUSTER_META); + isValidClusterId(MockProducerMetricsReporter.CLUSTER_META.get().clusterId()); + + // --- CONSUMER CONFIGURATION --- + Map<String, Object> consumerConfigWithGroupProtocol = new HashMap<>(CONSUMER_CONFIG); + consumerConfigWithGroupProtocol.put(ConsumerConfig.GROUP_PROTOCOL_CONFIG, groupProtocol.name()); + try (var consumer = clusterInstance.<byte[], byte[]>consumer(consumerConfigWithGroupProtocol)) { + consumer.assign(Collections.singletonList(TP)); + consumer.seek(TP, 0); + // Consume one record + consumeRecords(consumer, NUM_RECORDS); + } + + // Cluster ID in consumer interceptor before onConsume + Assertions.assertNotEquals(MockConsumerInterceptor.CLUSTER_ID_BEFORE_ON_CONSUME.get(), MockConsumerInterceptor.NO_CLUSTER_ID); + Assertions.assertNotNull(MockConsumerInterceptor.CLUSTER_META); + isValidClusterId(MockConsumerInterceptor.CLUSTER_META.get().clusterId()); + Assertions.assertEquals( + MockConsumerInterceptor.CLUSTER_ID_BEFORE_ON_CONSUME.get().clusterId(), + MockConsumerInterceptor.CLUSTER_META.get().clusterId() + ); + + // Cluster ID in deserializer before deserialize + Assertions.assertNotEquals(MockDeserializer.clusterIdBeforeDeserialize.get(), MockDeserializer.noClusterId); + Assertions.assertNotNull(MockDeserializer.clusterMeta); + isValidClusterId(MockDeserializer.clusterMeta.get().clusterId()); + Assertions.assertEquals( + MockDeserializer.clusterIdBeforeDeserialize.get().clusterId(), + MockDeserializer.clusterMeta.get().clusterId() + ); + + Assertions.assertNotNull(MockConsumerMetricsReporter.CLUSTER_META); + isValidClusterId(MockConsumerMetricsReporter.CLUSTER_META.get().clusterId()); + + // All components received the same cluster id + String id = MockProducerInterceptor.CLUSTER_META.get().clusterId(); + Assertions.assertEquals(id, MockSerializer.CLUSTER_META.get().clusterId()); + Assertions.assertEquals(id, MockProducerMetricsReporter.CLUSTER_META.get().clusterId()); + Assertions.assertEquals(id, MockConsumerInterceptor.CLUSTER_META.get().clusterId()); + Assertions.assertEquals(id, MockDeserializer.clusterMeta.get().clusterId()); + Assertions.assertEquals(id, MockConsumerMetricsReporter.CLUSTER_META.get().clusterId()); + Assertions.assertEquals(id, MockBrokerMetricsReporter.CLUSTER_META.get().clusterId()); + + MockConsumerInterceptor.resetCounters(); + MockProducerInterceptor.resetCounters(); + } + + private static void sendRecords(Producer<byte[], byte[]> producer, int numRecords, TopicPartition tp) throws Exception { + for (int i = 0; i < numRecords; i++) { + ProducerRecord<byte[], byte[]> record = new ProducerRecord<>(tp.topic(), tp.partition(), ("" + i).getBytes(), ("" + i).getBytes()); + producer.send(record).get(); + } + } + + private void consumeRecords(Consumer<byte[], byte[]> consumer, int numRecords) throws InterruptedException { Review Comment: ditto ########## server/src/test/java/org/apache/kafka/api/EndToEndClusterIdTest.java: ########## @@ -0,0 +1,220 @@ +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ +package org.apache.kafka.api; + +import org.apache.kafka.clients.consumer.Consumer; +import org.apache.kafka.clients.consumer.ConsumerConfig; +import org.apache.kafka.clients.consumer.ConsumerRecord; +import org.apache.kafka.clients.consumer.GroupProtocol; +import org.apache.kafka.clients.producer.Producer; +import org.apache.kafka.clients.producer.ProducerConfig; +import org.apache.kafka.clients.producer.ProducerRecord; +import org.apache.kafka.common.ClusterResource; +import org.apache.kafka.common.ClusterResourceListener; +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.test.ClusterInstance; +import org.apache.kafka.common.test.api.ClusterConfigProperty; +import org.apache.kafka.common.test.api.ClusterTest; +import org.apache.kafka.common.test.api.ClusterTestDefaults; +import org.apache.kafka.server.metrics.MetricConfigs; +import org.apache.kafka.test.MockConsumerInterceptor; +import org.apache.kafka.test.MockDeserializer; +import org.apache.kafka.test.MockMetricsReporter; +import org.apache.kafka.test.MockProducerInterceptor; +import org.apache.kafka.test.MockSerializer; +import org.apache.kafka.test.TestUtils; + +import org.junit.jupiter.api.Assertions; +import org.junit.jupiter.api.BeforeEach; + +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collections; +import java.util.HashMap; +import java.util.List; +import java.util.Map; +import java.util.concurrent.atomic.AtomicReference; + +import static org.apache.kafka.test.TestUtils.isValidClusterId; + +@ClusterTestDefaults(serverProperties = { + @ClusterConfigProperty(key = MetricConfigs.METRIC_REPORTER_CLASSES_CONFIG, value = "org.apache.kafka.api.EndToEndClusterIdTest$MockBrokerMetricsReporter"), +}) +public class EndToEndClusterIdTest { + + private static final String TOPIC = "e2etopic"; + private static final int PARTITION = 0; + private static final int NUM_RECORDS = 1; + private static final TopicPartition TP = new TopicPartition(TOPIC, PARTITION); + private static final Map<String, Object> PRODUCER_CONFIG = Map.of(ProducerConfig.INTERCEPTOR_CLASSES_CONFIG, MockProducerInterceptor.class.getName(), + "mock.interceptor.append", "mock", + ProducerConfig.METRIC_REPORTER_CLASSES_CONFIG, MockProducerMetricsReporter.class.getName(), + ProducerConfig.KEY_SERIALIZER_CLASS_CONFIG, MockSerializer.class.getName(), + ProducerConfig.VALUE_SERIALIZER_CLASS_CONFIG, MockSerializer.class.getName()); + private static final Map<String, Object> CONSUMER_CONFIG = Map.of(ConsumerConfig.INTERCEPTOR_CLASSES_CONFIG, MockConsumerInterceptor.class.getName(), + ConsumerConfig.METRIC_REPORTER_CLASSES_CONFIG, MockConsumerMetricsReporter.class.getName(), + ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, MockDeserializer.class.getName(), + ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, MockDeserializer.class.getName()); + + + private final ClusterInstance clusterInstance; + + EndToEndClusterIdTest(ClusterInstance clusterInstance) { + this.clusterInstance = clusterInstance; + } + + @BeforeEach + public void setup() throws InterruptedException { + this.clusterInstance.createTopic(TOPIC, 2, (short) 1); + MockDeserializer.resetStaticVariables(); + } + + public static class MockConsumerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + public static class MockProducerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + public static class MockBrokerMetricsReporter extends MockMetricsReporter implements ClusterResourceListener { + public static final AtomicReference<ClusterResource> CLUSTER_META = new AtomicReference<>(); + + @Override + public void onUpdate(ClusterResource clusterMetadata) { + CLUSTER_META.set(clusterMetadata); + } + } + + @ClusterTest + public void testEndToEndWithClassicProtocol(ClusterInstance clusterInstance) throws Exception { + testEndToEnd(GroupProtocol.CONSUMER, clusterInstance); + } + + @ClusterTest + public void testEndToEndWithConsumerProtocol(ClusterInstance clusterInstance) throws Exception { + testEndToEnd(GroupProtocol.CONSUMER, clusterInstance); + } + + public void testEndToEnd(GroupProtocol groupProtocol, ClusterInstance clusterInstance) throws Exception { + MockConsumerInterceptor.resetCounters(); + MockProducerInterceptor.resetCounters(); + + // Should have cluster id at broker metrics reporter after startup + Assertions.assertNotNull(MockBrokerMetricsReporter.CLUSTER_META); + isValidClusterId(MockBrokerMetricsReporter.CLUSTER_META.get().clusterId()); + + + // --- PRODUCER CONFIGURATION --- + try (var producer = clusterInstance.<byte[], byte[]>producer(PRODUCER_CONFIG)) { + // Send one record and make sure clusterId is set after send and before onAcknowledgement + sendRecords(producer, NUM_RECORDS, TP); + } + + Assertions.assertNotEquals(MockProducerInterceptor.CLUSTER_ID_BEFORE_ON_ACKNOWLEDGEMENT.get(), MockProducerInterceptor.NO_CLUSTER_ID); + Assertions.assertNotNull(MockProducerInterceptor.CLUSTER_META); + Assertions.assertEquals( + MockProducerInterceptor.CLUSTER_ID_BEFORE_ON_ACKNOWLEDGEMENT.get().clusterId(), + MockProducerInterceptor.CLUSTER_META.get().clusterId() + ); + isValidClusterId(MockProducerInterceptor.CLUSTER_META.get().clusterId()); + + // Ensure the serializer sees Cluster ID before serialization + Assertions.assertNotEquals(MockSerializer.CLUSTER_ID_BEFORE_SERIALIZE.get(), MockSerializer.NO_CLUSTER_ID); + Assertions.assertNotNull(MockSerializer.CLUSTER_META); + isValidClusterId(MockSerializer.CLUSTER_META.get().clusterId()); + + // Producer metric reporter receives cluster id + Assertions.assertNotNull(MockProducerMetricsReporter.CLUSTER_META); + isValidClusterId(MockProducerMetricsReporter.CLUSTER_META.get().clusterId()); + + // --- CONSUMER CONFIGURATION --- + Map<String, Object> consumerConfigWithGroupProtocol = new HashMap<>(CONSUMER_CONFIG); + consumerConfigWithGroupProtocol.put(ConsumerConfig.GROUP_PROTOCOL_CONFIG, groupProtocol.name()); + try (var consumer = clusterInstance.<byte[], byte[]>consumer(consumerConfigWithGroupProtocol)) { + consumer.assign(Collections.singletonList(TP)); + consumer.seek(TP, 0); + // Consume one record + consumeRecords(consumer, NUM_RECORDS); + } + + // Cluster ID in consumer interceptor before onConsume + Assertions.assertNotEquals(MockConsumerInterceptor.CLUSTER_ID_BEFORE_ON_CONSUME.get(), MockConsumerInterceptor.NO_CLUSTER_ID); + Assertions.assertNotNull(MockConsumerInterceptor.CLUSTER_META); + isValidClusterId(MockConsumerInterceptor.CLUSTER_META.get().clusterId()); + Assertions.assertEquals( + MockConsumerInterceptor.CLUSTER_ID_BEFORE_ON_CONSUME.get().clusterId(), + MockConsumerInterceptor.CLUSTER_META.get().clusterId() + ); + + // Cluster ID in deserializer before deserialize + Assertions.assertNotEquals(MockDeserializer.clusterIdBeforeDeserialize.get(), MockDeserializer.noClusterId); + Assertions.assertNotNull(MockDeserializer.clusterMeta); + isValidClusterId(MockDeserializer.clusterMeta.get().clusterId()); + Assertions.assertEquals( + MockDeserializer.clusterIdBeforeDeserialize.get().clusterId(), + MockDeserializer.clusterMeta.get().clusterId() + ); + + Assertions.assertNotNull(MockConsumerMetricsReporter.CLUSTER_META); + isValidClusterId(MockConsumerMetricsReporter.CLUSTER_META.get().clusterId()); + + // All components received the same cluster id + String id = MockProducerInterceptor.CLUSTER_META.get().clusterId(); + Assertions.assertEquals(id, MockSerializer.CLUSTER_META.get().clusterId()); + Assertions.assertEquals(id, MockProducerMetricsReporter.CLUSTER_META.get().clusterId()); + Assertions.assertEquals(id, MockConsumerInterceptor.CLUSTER_META.get().clusterId()); + Assertions.assertEquals(id, MockDeserializer.clusterMeta.get().clusterId()); + Assertions.assertEquals(id, MockConsumerMetricsReporter.CLUSTER_META.get().clusterId()); + Assertions.assertEquals(id, MockBrokerMetricsReporter.CLUSTER_META.get().clusterId()); + + MockConsumerInterceptor.resetCounters(); + MockProducerInterceptor.resetCounters(); + } + + private static void sendRecords(Producer<byte[], byte[]> producer, int numRecords, TopicPartition tp) throws Exception { Review Comment: we don't need `int numRecords, TopicPartition tp`, right? this method can use constants directly -- This is an automated message from the Apache Git Service. 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