chia7712 commented on code in PR #15766: URL: https://github.com/apache/kafka/pull/15766#discussion_r1582583036
########## tools/src/test/java/org/apache/kafka/tools/consumer/group/ConsumerGroupExecutor.java: ########## @@ -0,0 +1,189 @@ +/* + * 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.tools.consumer.group; + +import org.apache.kafka.clients.consumer.GroupProtocol; +import org.apache.kafka.clients.consumer.KafkaConsumer; +import org.apache.kafka.clients.consumer.RangeAssignor; +import org.apache.kafka.common.errors.InterruptException; +import org.apache.kafka.common.errors.WakeupException; +import org.apache.kafka.common.serialization.StringDeserializer; +import org.apache.kafka.common.utils.Utils; + +import java.time.Duration; +import java.util.HashMap; +import java.util.LinkedList; +import java.util.List; +import java.util.Map; +import java.util.Objects; +import java.util.Optional; +import java.util.Queue; +import java.util.concurrent.ExecutorService; +import java.util.concurrent.Executors; +import java.util.concurrent.TimeUnit; +import java.util.concurrent.atomic.AtomicBoolean; +import java.util.stream.Collectors; +import java.util.stream.IntStream; + +import static java.util.Collections.singleton; +import static org.apache.kafka.clients.consumer.ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG; +import static org.apache.kafka.clients.consumer.ConsumerConfig.GROUP_ID_CONFIG; +import static org.apache.kafka.clients.consumer.ConsumerConfig.GROUP_PROTOCOL_CONFIG; +import static org.apache.kafka.clients.consumer.ConsumerConfig.GROUP_REMOTE_ASSIGNOR_CONFIG; +import static org.apache.kafka.clients.consumer.ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG; +import static org.apache.kafka.clients.consumer.ConsumerConfig.PARTITION_ASSIGNMENT_STRATEGY_CONFIG; +import static org.apache.kafka.clients.consumer.ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG; +import static org.apache.kafka.common.GroupType.CONSUMER; + +class ConsumerGroupExecutor { + + private ConsumerGroupExecutor() { + } + + static AutoCloseable buildConsumerGroup(String brokerAddress, + int numberOfConsumers, + String groupId, + String topic, + String groupProtocol, + Optional<String> remoteAssignor, + Map<String, Object> customConfigs, + boolean syncCommit) { + return buildConsumers( + brokerAddress, + numberOfConsumers, + groupId, + groupProtocol, + topic, + RangeAssignor.class.getName(), + remoteAssignor, + customConfigs, + syncCommit + ); + } + + static AutoCloseable buildClassicGroup(String brokerAddress, + int numberOfConsumers, + String groupId, + String topic, + String assignmentStrategy, + Map<String, Object> customConfigs, + boolean syncCommit) { + return buildConsumers( + brokerAddress, + numberOfConsumers, + groupId, + GroupProtocol.CLASSIC.name, + topic, + assignmentStrategy, + Optional.empty(), + customConfigs, + syncCommit + ); + } + + private static AutoCloseable buildConsumers( + String brokerAddress, + int numberOfConsumers, + String groupId, + String groupProtocol, + String topic, + String assignmentStrategy, + Optional<String> remoteAssignor, + Map<String, Object> customConfigs, + boolean syncCommit + ) { + List<Map<String, Object>> allConfigs = IntStream.range(0, numberOfConsumers) + .mapToObj(ignored -> + composeConfigs( + brokerAddress, + groupId, + groupProtocol, + assignmentStrategy, + remoteAssignor, + customConfigs + ) + ) + .collect(Collectors.toList()); + + Queue<KafkaConsumer<String, String>> kafkaConsumers = buildConsumersSafely(allConfigs); + ExecutorService executor = Executors.newFixedThreadPool(kafkaConsumers.size()); + AtomicBoolean closed = new AtomicBoolean(false); + final AutoCloseable closeable = () -> releaseConsumers(closed, kafkaConsumers, executor); + + try { + while (!kafkaConsumers.isEmpty()) { + KafkaConsumer<String, String> consumer = kafkaConsumers.poll(); + executor.execute(() -> { + try { + consumer.subscribe(singleton(topic)); + while (!closed.get()) { + consumer.poll(Duration.ofMillis(Long.MAX_VALUE)); + if (syncCommit) + consumer.commitSync(); + } + } catch (WakeupException | InterruptException e) { Review Comment: Could you clear the interrupt status to avoid impacting the consumer#close? for example: ```java } catch (WakeupException e) { // OK } catch (InterruptException e) { // OK with reset interrupt Thread.interrupted(); } finally { consumer.close(); } ``` -- This is an automated message from the Apache Git Service. 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