/*
* Copyright 2002-2016 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
*
* http://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;
import java.util.ArrayList;
import java.util.Collections;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.ConcurrentMap;
import org.springframework.messaging.Message;
import org.springframework.integration.IntegrationMessageHeaderAccessor;
import org.springframework.integration.aggregator.MessageSequenceComparator;
import org.springframework.integration.annotation.Aggregator;
import org.springframework.messaging.support.GenericMessage;
/**
* @author Marius Bogoevici
*/
public class TestAggregatorBean {
private final ConcurrentMap<Object, Message<?>> aggregatedMessages = new ConcurrentHashMap<Object, Message<?>>();
@Aggregator
public Message<?> createSingleMessageFromGroup(List<Message<?>> messages) {
List<Message<?>> sortableList = new ArrayList<Message<?>>(messages);
Collections.sort(sortableList, new MessageSequenceComparator());
StringBuffer buffer = new StringBuffer();
Object correlationId = null;
for (Message<?> message : sortableList) {
buffer.append(message.getPayload().toString());
if (null == correlationId) {
correlationId = new IntegrationMessageHeaderAccessor(message).getCorrelationId();
}
}
Message<?> returnedMessage = new GenericMessage<String>(buffer.toString());
if (correlationId != null) {
aggregatedMessages.put(correlationId, returnedMessage);
}
return returnedMessage;
}
public ConcurrentMap<Object, Message<?>> getAggregatedMessages() {
return aggregatedMessages;
}
}