org.springframework.boot.autoconfigure.amqp.RetryTemplateFactory Maven / Gradle / Ivy
/*
* Copyright 2012-2019 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.boot.autoconfigure.amqp;
import java.time.Duration;
import java.util.List;
import org.springframework.boot.context.properties.PropertyMapper;
import org.springframework.retry.backoff.ExponentialBackOffPolicy;
import org.springframework.retry.policy.SimpleRetryPolicy;
import org.springframework.retry.support.RetryTemplate;
/**
* Factory to create {@link RetryTemplate} instance from properties defined in
* {@link RabbitProperties}.
*
* @author Stephane Nicoll
*/
class RetryTemplateFactory {
private final List customizers;
RetryTemplateFactory(List customizers) {
this.customizers = customizers;
}
RetryTemplate createRetryTemplate(RabbitProperties.Retry properties, RabbitRetryTemplateCustomizer.Target target) {
PropertyMapper map = PropertyMapper.get();
RetryTemplate template = new RetryTemplate();
SimpleRetryPolicy policy = new SimpleRetryPolicy();
map.from(properties::getMaxAttempts).to(policy::setMaxAttempts);
template.setRetryPolicy(policy);
ExponentialBackOffPolicy backOffPolicy = new ExponentialBackOffPolicy();
map.from(properties::getInitialInterval).whenNonNull().as(Duration::toMillis)
.to(backOffPolicy::setInitialInterval);
map.from(properties::getMultiplier).to(backOffPolicy::setMultiplier);
map.from(properties::getMaxInterval).whenNonNull().as(Duration::toMillis).to(backOffPolicy::setMaxInterval);
template.setBackOffPolicy(backOffPolicy);
if (this.customizers != null) {
for (RabbitRetryTemplateCustomizer customizer : this.customizers) {
customizer.customize(target, template);
}
}
return template;
}
}