/*
* Copyright 2015 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.samples.barrier;
import org.springframework.amqp.support.AmqpHeaders;
import org.springframework.integration.aggregator.MessageGroupProcessor;
import org.springframework.integration.store.MessageGroup;
import org.springframework.messaging.Message;
/**
* @author Gary Russell
* @since 4.2
*
*/
public class AckAggregator implements MessageGroupProcessor {
@Override
public Object processMessageGroup(MessageGroup group) {
StringBuilder builder = new StringBuilder("Result: ");
for (Message<?> message : group.getMessages()) {
if (builder.length() > 8) {
builder.append(", ");
}
builder.append(message.getPayload() + ": ack=" + message.getHeaders().get(AmqpHeaders.PUBLISH_CONFIRM));
}
return builder.toString();
}
}