001 /** 002 * Licensed to the Apache Software Foundation (ASF) under one or more 003 * contributor license agreements. See the NOTICE file distributed with 004 * this work for additional information regarding copyright ownership. 005 * The ASF licenses this file to You under the Apache License, Version 2.0 006 * (the "License"); you may not use this file except in compliance with 007 * the License. You may obtain a copy of the License at 008 * 009 * http://www.apache.org/licenses/LICENSE-2.0 010 * 011 * Unless required by applicable law or agreed to in writing, software 012 * distributed under the License is distributed on an "AS IS" BASIS, 013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 014 * See the License for the specific language governing permissions and 015 * limitations under the License. 016 */ 017 package org.apache.camel.processor.aggregate; 018 019 import org.apache.camel.Exchange; 020 import org.apache.camel.impl.GroupedExchange; 021 022 /** 023 * Aggregate all exchanges into a single combined {@link org.apache.camel.impl.GroupedExchange} holding all 024 * the exchanges gathered. 025 * 026 * @version $Revision: 772172 $ 027 */ 028 public class GroupedExchangeAggregationStrategy implements AggregationStrategy { 029 030 public Exchange aggregate(Exchange oldExchange, Exchange newExchange) { 031 GroupedExchange answer; 032 if (!(oldExchange instanceof GroupedExchange)) { 033 answer = new GroupedExchange(oldExchange); 034 answer.addExchange(oldExchange); 035 } else { 036 answer = (GroupedExchange) oldExchange; 037 } 038 039 answer.addExchange(newExchange); 040 return answer; 041 } 042 043 }