org.springframework.kafka.listener.adapter.AbstractRetryingMessageListenerAdapter Maven / Gradle / Ivy
/*
* Copyright 2016-2019 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.adapter;
import org.springframework.retry.RecoveryCallback;
import org.springframework.retry.support.RetryTemplate;
import org.springframework.util.Assert;
/**
* Base class for retrying message listener adapters.
*
* @param the key type.
* @param the value type.
* @param the delegate type.
*
* @author Gary Russell
*
*/
public abstract class AbstractRetryingMessageListenerAdapter
extends AbstractDelegatingMessageListenerAdapter {
private final RetryTemplate retryTemplate;
private final RecoveryCallback recoveryCallback;
/**
* Construct an instance with the supplied retry template. The exception will be
* thrown to the container after retries are exhausted.
* @param delegate the delegate listener.
* @param retryTemplate the template.
*/
public AbstractRetryingMessageListenerAdapter(T delegate, RetryTemplate retryTemplate) {
this(delegate, retryTemplate, null);
}
/**
* Construct an instance with the supplied template and callback.
* @param delegate the delegate listener.
* @param retryTemplate the template.
* @param recoveryCallback the recovery callback; if null, the exception will be
* thrown to the container after retries are exhausted.
*/
public AbstractRetryingMessageListenerAdapter(T delegate, RetryTemplate retryTemplate,
RecoveryCallback recoveryCallback) {
super(delegate);
Assert.notNull(retryTemplate, "'retryTemplate' cannot be null");
this.retryTemplate = retryTemplate;
this.recoveryCallback = recoveryCallback;
}
public RetryTemplate getRetryTemplate() {
return this.retryTemplate;
}
public RecoveryCallback getRecoveryCallback() {
return this.recoveryCallback;
}
}