kafka Consumer 源码
kafka Consumer 代码
文件路径:/clients/src/main/java/org/apache/kafka/clients/consumer/Consumer.java
/*
* 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.Metric;
import org.apache.kafka.common.MetricName;
import org.apache.kafka.common.PartitionInfo;
import org.apache.kafka.common.TopicPartition;
import java.io.Closeable;
import java.time.Duration;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.OptionalLong;
import java.util.Set;
import java.util.regex.Pattern;
/**
* @see KafkaConsumer
* @see MockConsumer
*/
public interface Consumer<K, V> extends Closeable {
/**
* @see KafkaConsumer#assignment()
*/
Set<TopicPartition> assignment();
/**
* @see KafkaConsumer#subscription()
*/
Set<String> subscription();
/**
* @see KafkaConsumer#subscribe(Collection)
*/
void subscribe(Collection<String> topics);
/**
* @see KafkaConsumer#subscribe(Collection, ConsumerRebalanceListener)
*/
void subscribe(Collection<String> topics, ConsumerRebalanceListener callback);
/**
* @see KafkaConsumer#assign(Collection)
*/
void assign(Collection<TopicPartition> partitions);
/**
* @see KafkaConsumer#subscribe(Pattern, ConsumerRebalanceListener)
*/
void subscribe(Pattern pattern, ConsumerRebalanceListener callback);
/**
* @see KafkaConsumer#subscribe(Pattern)
*/
void subscribe(Pattern pattern);
/**
* @see KafkaConsumer#unsubscribe()
*/
void unsubscribe();
/**
* @see KafkaConsumer#poll(long)
*/
@Deprecated
ConsumerRecords<K, V> poll(long timeout);
/**
* @see KafkaConsumer#poll(Duration)
*/
ConsumerRecords<K, V> poll(Duration timeout);
/**
* @see KafkaConsumer#commitSync()
*/
void commitSync();
/**
* @see KafkaConsumer#commitSync(Duration)
*/
void commitSync(Duration timeout);
/**
* @see KafkaConsumer#commitSync(Map)
*/
void commitSync(Map<TopicPartition, OffsetAndMetadata> offsets);
/**
* @see KafkaConsumer#commitSync(Map, Duration)
*/
void commitSync(final Map<TopicPartition, OffsetAndMetadata> offsets, final Duration timeout);
/**
* @see KafkaConsumer#commitAsync()
*/
void commitAsync();
/**
* @see KafkaConsumer#commitAsync(OffsetCommitCallback)
*/
void commitAsync(OffsetCommitCallback callback);
/**
* @see KafkaConsumer#commitAsync(Map, OffsetCommitCallback)
*/
void commitAsync(Map<TopicPartition, OffsetAndMetadata> offsets, OffsetCommitCallback callback);
/**
* @see KafkaConsumer#seek(TopicPartition, long)
*/
void seek(TopicPartition partition, long offset);
/**
* @see KafkaConsumer#seek(TopicPartition, OffsetAndMetadata)
*/
void seek(TopicPartition partition, OffsetAndMetadata offsetAndMetadata);
/**
* @see KafkaConsumer#seekToBeginning(Collection)
*/
void seekToBeginning(Collection<TopicPartition> partitions);
/**
* @see KafkaConsumer#seekToEnd(Collection)
*/
void seekToEnd(Collection<TopicPartition> partitions);
/**
* @see KafkaConsumer#position(TopicPartition)
*/
long position(TopicPartition partition);
/**
* @see KafkaConsumer#position(TopicPartition, Duration)
*/
long position(TopicPartition partition, final Duration timeout);
/**
* @see KafkaConsumer#committed(TopicPartition)
*/
@Deprecated
OffsetAndMetadata committed(TopicPartition partition);
/**
* @see KafkaConsumer#committed(TopicPartition, Duration)
*/
@Deprecated
OffsetAndMetadata committed(TopicPartition partition, final Duration timeout);
/**
* @see KafkaConsumer#committed(Set)
*/
Map<TopicPartition, OffsetAndMetadata> committed(Set<TopicPartition> partitions);
/**
* @see KafkaConsumer#committed(Set, Duration)
*/
Map<TopicPartition, OffsetAndMetadata> committed(Set<TopicPartition> partitions, final Duration timeout);
/**
* @see KafkaConsumer#metrics()
*/
Map<MetricName, ? extends Metric> metrics();
/**
* @see KafkaConsumer#partitionsFor(String)
*/
List<PartitionInfo> partitionsFor(String topic);
/**
* @see KafkaConsumer#partitionsFor(String, Duration)
*/
List<PartitionInfo> partitionsFor(String topic, Duration timeout);
/**
* @see KafkaConsumer#listTopics()
*/
Map<String, List<PartitionInfo>> listTopics();
/**
* @see KafkaConsumer#listTopics(Duration)
*/
Map<String, List<PartitionInfo>> listTopics(Duration timeout);
/**
* @see KafkaConsumer#paused()
*/
Set<TopicPartition> paused();
/**
* @see KafkaConsumer#pause(Collection)
*/
void pause(Collection<TopicPartition> partitions);
/**
* @see KafkaConsumer#resume(Collection)
*/
void resume(Collection<TopicPartition> partitions);
/**
* @see KafkaConsumer#offsetsForTimes(Map)
*/
Map<TopicPartition, OffsetAndTimestamp> offsetsForTimes(Map<TopicPartition, Long> timestampsToSearch);
/**
* @see KafkaConsumer#offsetsForTimes(Map, Duration)
*/
Map<TopicPartition, OffsetAndTimestamp> offsetsForTimes(Map<TopicPartition, Long> timestampsToSearch, Duration timeout);
/**
* @see KafkaConsumer#beginningOffsets(Collection)
*/
Map<TopicPartition, Long> beginningOffsets(Collection<TopicPartition> partitions);
/**
* @see KafkaConsumer#beginningOffsets(Collection, Duration)
*/
Map<TopicPartition, Long> beginningOffsets(Collection<TopicPartition> partitions, Duration timeout);
/**
* @see KafkaConsumer#endOffsets(Collection)
*/
Map<TopicPartition, Long> endOffsets(Collection<TopicPartition> partitions);
/**
* @see KafkaConsumer#endOffsets(Collection, Duration)
*/
Map<TopicPartition, Long> endOffsets(Collection<TopicPartition> partitions, Duration timeout);
/**
* @see KafkaConsumer#currentLag(TopicPartition)
*/
OptionalLong currentLag(TopicPartition topicPartition);
/**
* @see KafkaConsumer#groupMetadata()
*/
ConsumerGroupMetadata groupMetadata();
/**
* @see KafkaConsumer#enforceRebalance()
*/
void enforceRebalance();
/**
* @see KafkaConsumer#enforceRebalance(String)
*/
void enforceRebalance(final String reason);
/**
* @see KafkaConsumer#close()
*/
void close();
/**
* @see KafkaConsumer#close(Duration)
*/
void close(Duration timeout);
/**
* @see KafkaConsumer#wakeup()
*/
void wakeup();
}
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