spring-kafka ErrorHandlerAdapter 源码
spring-kafka ErrorHandlerAdapter 代码
文件路径:/spring-kafka/src/main/java/org/springframework/kafka/listener/ErrorHandlerAdapter.java
/*
* Copyright 2021-2022 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 java.util.Collection;
import java.util.Collections;
import java.util.List;
import org.apache.kafka.clients.consumer.Consumer;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.clients.consumer.ConsumerRecords;
import org.apache.kafka.common.TopicPartition;
import org.springframework.kafka.support.TopicPartitionOffset;
import org.springframework.util.Assert;
/**
* Adapts a legacy {@link ErrorHandler} or {@link BatchErrorHandler}.
*
* @author Gary Russell
* @since 2.7.4
*
*/
@SuppressWarnings("deprecation")
class ErrorHandlerAdapter implements CommonErrorHandler {
@SuppressWarnings({ "rawtypes", "unchecked" })
private static final ConsumerRecords EMPTY_BATCH = new ConsumerRecords(Collections.emptyMap());
private final ErrorHandler errorHandler;
private final BatchErrorHandler batchErrorHandler;
/**
* Adapt an {@link ErrorHandler}.
* @param errorHandler the handler.
*/
ErrorHandlerAdapter(ErrorHandler errorHandler) {
Assert.notNull(errorHandler, "'errorHandler' cannot be null");
this.errorHandler = errorHandler;
this.batchErrorHandler = null;
}
/**
* Adapt a {@link BatchErrorHandler}.
* @param batchErrorHandler the handler.
*/
ErrorHandlerAdapter(BatchErrorHandler batchErrorHandler) {
Assert.notNull(batchErrorHandler, "'batchErrorHandler' cannot be null");
this.errorHandler = null;
this.batchErrorHandler = batchErrorHandler;
}
@SuppressWarnings("deprecation")
@Override
public boolean remainingRecords() {
return this.errorHandler instanceof RemainingRecordsErrorHandler;
}
@Override
public boolean deliveryAttemptHeader() {
return this.errorHandler instanceof DeliveryAttemptAware;
}
@Override
public void clearThreadState() {
if (this.errorHandler != null) {
this.errorHandler.clearThreadState();
}
else {
this.batchErrorHandler.clearThreadState();
}
}
@Override
public boolean isAckAfterHandle() {
if (this.errorHandler != null) {
return this.errorHandler.isAckAfterHandle();
}
else {
return this.batchErrorHandler.isAckAfterHandle();
}
}
@Override
public void setAckAfterHandle(boolean ack) {
if (this.errorHandler != null) {
this.errorHandler.setAckAfterHandle(ack);
}
else {
this.batchErrorHandler.setAckAfterHandle(ack);
}
}
@Override
public int deliveryAttempt(TopicPartitionOffset topicPartitionOffset) {
Assert.state(deliveryAttemptHeader(), "This method should not be called by the container");
return ((DeliveryAttemptAware) this.errorHandler).deliveryAttempt(topicPartitionOffset);
}
@SuppressWarnings({ "unchecked" })
@Override
public void handleOtherException(Exception thrownException, Consumer<?, ?> consumer,
MessageListenerContainer container, boolean batchListener) {
if (this.errorHandler != null) {
this.errorHandler.handle(thrownException, Collections.EMPTY_LIST, consumer, container);
}
else {
this.batchErrorHandler.handle(thrownException, EMPTY_BATCH, consumer, container, () -> { });
}
}
@SuppressWarnings("deprecation")
@Override
public void handleRecord(Exception thrownException, ConsumerRecord<?, ?> record, Consumer<?, ?> consumer,
MessageListenerContainer container) {
if (this.errorHandler != null) {
this.errorHandler.handle(thrownException, record, consumer);
}
else {
CommonErrorHandler.super.handleRecord(thrownException, record, consumer, container);
}
}
@Override
public void handleRemaining(Exception thrownException, List<ConsumerRecord<?, ?>> records, Consumer<?, ?> consumer,
MessageListenerContainer container) {
if (this.errorHandler != null) {
this.errorHandler.handle(thrownException, records, consumer, container);
}
else {
CommonErrorHandler.super.handleRemaining(thrownException, records, consumer, container);
}
}
@Override
public void handleBatch(Exception thrownException, ConsumerRecords<?, ?> data, Consumer<?, ?> consumer,
MessageListenerContainer container, Runnable invokeListener) {
if (this.batchErrorHandler != null) {
this.batchErrorHandler.handle(thrownException, data, consumer, container, invokeListener);
}
else {
CommonErrorHandler.super.handleBatch(thrownException, data, consumer, container, invokeListener);
}
}
@Override
public void onPartitionsAssigned(Consumer<?, ?> consumer, Collection<TopicPartition> partitions) {
if (this.batchErrorHandler instanceof FallbackBatchErrorHandler) {
((FallbackBatchErrorHandler) this.batchErrorHandler).onPartitionsAssigned(consumer, partitions);
}
}
}
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