org.springframework.kafka.listener.CompositeRecordInterceptor 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.listener;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collection;
import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.springframework.util.Assert;
/**
* A {@link RecordInterceptor} that delegates to one or more {@link RecordInterceptor} in
* order.
*
* @param the key type.
* @param the value type.
*
* @author Artem Bilan
* @author Gary Russell
* @since 2.3
*
*/
public class CompositeRecordInterceptor implements RecordInterceptor {
private final Collection> delegates = new ArrayList<>();
@SafeVarargs
@SuppressWarnings("varargs")
public CompositeRecordInterceptor(RecordInterceptor... delegates) {
Assert.notNull(delegates, "'delegates' cannot be null");
Assert.noNullElements(delegates, "'delegates' cannot have null entries");
this.delegates.addAll(Arrays.asList(delegates));
}
@Override
public ConsumerRecord intercept(ConsumerRecord record) {
ConsumerRecord recordToIntercept = record;
for (RecordInterceptor delegate : this.delegates) {
recordToIntercept = delegate.intercept(recordToIntercept);
}
return recordToIntercept;
}
}