org.springframework.kafka.support.serializer.RetryingDeserializer Maven / Gradle / Ivy
/*
* Copyright 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.support.serializer;
import java.util.Map;
import org.apache.kafka.common.header.Headers;
import org.apache.kafka.common.serialization.Deserializer;
import org.springframework.retry.RetryOperations;
import org.springframework.util.Assert;
/**
* A deserialzer configured with a delegate and a {@link RetryOperations} to retry
* deserialization in case of transient errors.
*
* @param Type to be deserialized into.
*
* @author Gary Russell
* @since 2.3
*
*/
public class RetryingDeserializer implements Deserializer {
private final Deserializer delegate;
private final RetryOperations retryOperations;
public RetryingDeserializer(Deserializer delegate, RetryOperations retryOperations) {
Assert.notNull(delegate, "the 'delegate' deserializer cannot be null");
Assert.notNull(retryOperations, "the 'retryOperations' deserializer cannot be null");
this.delegate = delegate;
this.retryOperations = retryOperations;
}
@Override
public void configure(Map configs, boolean isKey) {
this.delegate.configure(configs, isKey);
}
@Override
public T deserialize(String topic, byte[] data) {
return this.retryOperations.execute(context -> {
return this.delegate.deserialize(topic, data);
});
}
@Override
public T deserialize(String topic, Headers headers, byte[] data) {
return this.retryOperations.execute(context -> {
return this.delegate.deserialize(topic, headers, data);
});
}
@Override
public void close() {
this.delegate.close();
}
}