spring-kafka ThreadStateProcessor 源码
spring-kafka ThreadStateProcessor 代码
文件路径：/spring-kafka/src/main/java/org/springframework/kafka/listener/ThreadStateProcessor.java
/*
* Copyright 2016-2021 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.listener;
import org.apache.kafka.clients.consumer.Consumer;
/**
* A general interface for managing thread-bound resources when a {@link Consumer} is
* available.
*
* @author Karol Dowbecki
* @author Gary Russell
* @since 2.8
*
*/
public interface ThreadStateProcessor {
/**
* Call to set up thread-bound resources which will be available for the
* entire duration of enclosed operation involving a {@link Consumer}.
*
* @param consumer the consumer.
*/
default void setupThreadState(Consumer<?, ?> consumer) {
}
/**
* Call to clear thread-bound resources which were set up in
* {@link #setupThreadState(Consumer)}.
*
* @param consumer the consumer.
*/
default void clearThreadState(Consumer<?, ?> consumer) {
}
}
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