/* * 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(); } }