spring-kafka ConsumerStoppingEvent 源码
spring-kafka ConsumerStoppingEvent 代码
文件路径：/spring-kafka/src/main/java/org/springframework/kafka/event/ConsumerStoppingEvent.java
/*
* Copyright 2018-2020 the original author or authors.
*
* Licensed 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
*
* https://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.springframework.kafka.event;
import java.util.Collection;
import org.apache.kafka.clients.consumer.Consumer;
import org.apache.kafka.common.TopicPartition;
/**
* An event published when a consumer is stopped. While it is best practice to use
* stateless listeners, you can consume this event to clean up any thread-based resources
* (remove ThreadLocals, destroy thread-scoped beans etc), as long as the context event
* multicaster is not modified to use an async task executor.
*
* @author Gary Russell
* @since 2.2
*
*/
public class ConsumerStoppingEvent extends KafkaEvent {
private static final long serialVersionUID = 1L;
private transient Consumer<?, ?> consumer;
private final Collection<TopicPartition> partitions;
/**
* Construct an instance with the provided source, consumer and partitions.
* @param source the container instance that generated the event.
* @param container the container or the parent container if the container is a child.
* @param consumer the consumer.
* @param partitions the partitions.
* @since 2.2.1
*/
public ConsumerStoppingEvent(Object source, Object container,
Consumer<?, ?> consumer, Collection<TopicPartition> partitions) {
super(source, container);
this.consumer = consumer;
this.partitions = partitions;
}
public Consumer<?, ?> getConsumer() {
return this.consumer;
}
public Collection<TopicPartition> getPartitions() {
return this.partitions;
}
@Override
public String toString() {
return "ConsumerStoppingEvent [consumer=" + this.consumer + ", partitions=" + this.partitions + "]";
}
}
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