org.springframework.integration.config.annotation.AggregatorAnnotationPostProcessor Maven / Gradle / Ivy
/*
* Copyright 2002-2019 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.integration.config.annotation;
import java.lang.annotation.Annotation;
import java.lang.reflect.Method;
import java.util.List;
import org.springframework.beans.factory.config.ConfigurableListableBeanFactory;
import org.springframework.integration.aggregator.AggregatingMessageHandler;
import org.springframework.integration.aggregator.MethodInvokingCorrelationStrategy;
import org.springframework.integration.aggregator.MethodInvokingMessageGroupProcessor;
import org.springframework.integration.aggregator.MethodInvokingReleaseStrategy;
import org.springframework.integration.annotation.Aggregator;
import org.springframework.integration.annotation.CorrelationStrategy;
import org.springframework.integration.annotation.ReleaseStrategy;
import org.springframework.integration.store.SimpleMessageStore;
import org.springframework.integration.util.MessagingAnnotationUtils;
import org.springframework.messaging.MessageHandler;
import org.springframework.util.StringUtils;
/**
* Post-processor for the {@link Aggregator @Aggregator} annotation.
*
* @author Mark Fisher
* @author Oleg Zhurakousky
* @author Gary Russell
* @author Artem Bilan
*/
public class AggregatorAnnotationPostProcessor extends AbstractMethodAnnotationPostProcessor {
public AggregatorAnnotationPostProcessor(ConfigurableListableBeanFactory beanFactory) {
super(beanFactory);
}
@Override
protected MessageHandler createHandler(Object bean, Method method, List annotations) {
MethodInvokingMessageGroupProcessor processor = new MethodInvokingMessageGroupProcessor(bean, method);
MethodInvokingReleaseStrategy releaseStrategy = null;
Method releaseStrategyMethod = MessagingAnnotationUtils.findAnnotatedMethod(bean, ReleaseStrategy.class);
if (releaseStrategyMethod != null) {
releaseStrategy = new MethodInvokingReleaseStrategy(bean, releaseStrategyMethod);
}
MethodInvokingCorrelationStrategy correlationStrategy = null;
Method correlationStrategyMethod =
MessagingAnnotationUtils.findAnnotatedMethod(bean, CorrelationStrategy.class);
if (correlationStrategyMethod != null) {
correlationStrategy = new MethodInvokingCorrelationStrategy(bean, correlationStrategyMethod);
}
AggregatingMessageHandler handler = new AggregatingMessageHandler(processor, new SimpleMessageStore(),
correlationStrategy, releaseStrategy);
String discardChannelName =
MessagingAnnotationUtils.resolveAttribute(annotations, "discardChannel", String.class);
if (StringUtils.hasText(discardChannelName)) {
handler.setDiscardChannelName(discardChannelName);
}
String outputChannelName =
MessagingAnnotationUtils.resolveAttribute(annotations, "outputChannel", String.class);
if (StringUtils.hasText(outputChannelName)) {
handler.setOutputChannelName(outputChannelName);
}
String sendPartialResultsOnExpiry = MessagingAnnotationUtils.resolveAttribute(annotations,
"sendPartialResultsOnExpiry", String.class);
if (sendPartialResultsOnExpiry != null) {
handler.setSendPartialResultOnExpiry(resolveAttributeToBoolean(sendPartialResultsOnExpiry));
}
return handler;
}
protected boolean beanAnnotationAware() {
return false;
}
}