| /* |
| * 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.flink.streaming.connectors.kafka.internal; |
| |
| import org.apache.flink.annotation.Internal; |
| |
| import org.apache.kafka.clients.consumer.KafkaConsumer; |
| import org.apache.kafka.common.TopicPartition; |
| |
| import java.util.List; |
| |
| /** |
| * The ConsumerCallBridge simply calls methods on the {@link KafkaConsumer}. |
| * |
| * <p>This indirection is necessary, because Kafka broke binary compatibility between 0.9 and 0.10, |
| * for example changing {@code assign(List)} to {@code assign(Collection)}. |
| * |
| * <p>Because of that, we need to have two versions whose compiled code goes against different method signatures. |
| * Even though the source of subclasses may look identical, the byte code will be different, because they |
| * are compiled against different dependencies. |
| */ |
| @Internal |
| public class KafkaConsumerCallBridge { |
| |
| public void assignPartitions(KafkaConsumer<?, ?> consumer, List<TopicPartition> topicPartitions) throws Exception { |
| consumer.assign(topicPartitions); |
| } |
| |
| public void seekPartitionToBeginning(KafkaConsumer<?, ?> consumer, TopicPartition partition) { |
| consumer.seekToBeginning(partition); |
| } |
| |
| public void seekPartitionToEnd(KafkaConsumer<?, ?> consumer, TopicPartition partition) { |
| consumer.seekToEnd(partition); |
| } |
| |
| } |