FrankYang0529 commented on code in PR #19582: URL: https://github.com/apache/kafka/pull/19582#discussion_r2063882027
########## clients/clients-integration-tests/src/test/java/org/apache/kafka/clients/consumer/ConsumerAssignmentPoller.java: ########## @@ -0,0 +1,151 @@ +/* + * 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.clients.consumer; + +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.errors.WakeupException; +import org.apache.kafka.server.util.ShutdownableThread; + +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collection; +import java.util.HashSet; +import java.util.List; +import java.util.Set; + +public class ConsumerAssignmentPoller extends ShutdownableThread { + private final Consumer<byte[], byte[]> consumer; + private final Set<TopicPartition> partitionsToAssign; + private final ConsumerRebalanceListener userRebalanceListener; + + private volatile Throwable thrownException = null; + private volatile int receivedMessages = 0; + + private final Set<TopicPartition> partitionAssignment = new HashSet<>(); + private volatile boolean subscriptionChanged = false; + private List<String> topicsSubscription; + private final ConsumerRebalanceListener rebalanceListener; + + public ConsumerAssignmentPoller( + Consumer<byte[], byte[]> consumer, + List<String> topicsToSubscribe + ) { + this(consumer, topicsToSubscribe, new HashSet<>(), null); + } + + public ConsumerAssignmentPoller( + Consumer<byte[], byte[]> consumer, + Set<TopicPartition> partitionsToAssign + ) { + this(consumer, new ArrayList<>(), partitionsToAssign, null); Review Comment: ```suggestion this(consumer, List.of(), partitionsToAssign, null); ``` ########## clients/clients-integration-tests/src/test/java/org/apache/kafka/clients/consumer/ConsumerAssignmentPoller.java: ########## @@ -0,0 +1,151 @@ +/* + * 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.clients.consumer; + +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.errors.WakeupException; +import org.apache.kafka.server.util.ShutdownableThread; + +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collection; +import java.util.HashSet; +import java.util.List; +import java.util.Set; + +public class ConsumerAssignmentPoller extends ShutdownableThread { + private final Consumer<byte[], byte[]> consumer; + private final Set<TopicPartition> partitionsToAssign; + private final ConsumerRebalanceListener userRebalanceListener; + + private volatile Throwable thrownException = null; + private volatile int receivedMessages = 0; + + private final Set<TopicPartition> partitionAssignment = new HashSet<>(); + private volatile boolean subscriptionChanged = false; + private List<String> topicsSubscription; + private final ConsumerRebalanceListener rebalanceListener; + + public ConsumerAssignmentPoller( + Consumer<byte[], byte[]> consumer, + List<String> topicsToSubscribe + ) { + this(consumer, topicsToSubscribe, new HashSet<>(), null); + } + + public ConsumerAssignmentPoller( + Consumer<byte[], byte[]> consumer, + Set<TopicPartition> partitionsToAssign + ) { + this(consumer, new ArrayList<>(), partitionsToAssign, null); + } + + public ConsumerAssignmentPoller( + Consumer<byte[], byte[]> consumer, + List<String> topicsToSubscribe, + Set<TopicPartition> partitionsToAssign, + ConsumerRebalanceListener userRebalanceListener + ) { + super("daemon-consumer-assignment", false); + this.consumer = consumer; + this.topicsSubscription = topicsToSubscribe; + this.partitionsToAssign = partitionsToAssign; + this.userRebalanceListener = userRebalanceListener; + + this.rebalanceListener = new ConsumerRebalanceListener() { + @Override + public void onPartitionsAssigned(Collection<TopicPartition> partitions) { + partitionAssignment.addAll(partitions); + if (userRebalanceListener != null) + userRebalanceListener.onPartitionsAssigned(partitions); + } + + @Override + public void onPartitionsRevoked(Collection<TopicPartition> partitions) { + partitionAssignment.removeAll(partitions); + if (userRebalanceListener != null) + userRebalanceListener.onPartitionsRevoked(partitions); + } + }; + + if (partitionsToAssign.isEmpty()) { + consumer.subscribe(topicsToSubscribe, rebalanceListener); + } else { + consumer.assign(new ArrayList<>(partitionsToAssign)); + } + } + + public Set<TopicPartition> consumerAssignment() { + return new HashSet<>(partitionAssignment); Review Comment: ```suggestion return Set.copyOf(partitionAssignment); ``` ########## clients/clients-integration-tests/src/test/java/org/apache/kafka/clients/consumer/ConsumerAssignmentPoller.java: ########## @@ -0,0 +1,151 @@ +/* + * 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.clients.consumer; + +import org.apache.kafka.common.TopicPartition; +import org.apache.kafka.common.errors.WakeupException; +import org.apache.kafka.server.util.ShutdownableThread; + +import java.time.Duration; +import java.util.ArrayList; +import java.util.Collection; +import java.util.HashSet; +import java.util.List; +import java.util.Set; + +public class ConsumerAssignmentPoller extends ShutdownableThread { + private final Consumer<byte[], byte[]> consumer; + private final Set<TopicPartition> partitionsToAssign; + private final ConsumerRebalanceListener userRebalanceListener; + + private volatile Throwable thrownException = null; + private volatile int receivedMessages = 0; + + private final Set<TopicPartition> partitionAssignment = new HashSet<>(); + private volatile boolean subscriptionChanged = false; + private List<String> topicsSubscription; + private final ConsumerRebalanceListener rebalanceListener; + + public ConsumerAssignmentPoller( + Consumer<byte[], byte[]> consumer, + List<String> topicsToSubscribe + ) { + this(consumer, topicsToSubscribe, new HashSet<>(), null); Review Comment: ```suggestion this(consumer, topicsToSubscribe, Set.of(), null); ``` -- This is an automated message from the Apache Git Service. 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