| /** |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You 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.apache.camel.loanbroker.queue.version; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.processor.aggregate.AggregationStrategy; |
| |
| //START SNIPPET: aggregation |
| public class BankResponseAggregationStrategy implements AggregationStrategy { |
| |
| @Override |
| public Exchange aggregate(Exchange oldExchange, Exchange newExchange) { |
| // the first time we only have the new exchange |
| if (oldExchange == null) { |
| return newExchange; |
| } |
| |
| Double oldQuote = oldExchange.getIn().getHeader(Constants.PROPERTY_RATE, Double.class); |
| Double newQuote = newExchange.getIn().getHeader(Constants.PROPERTY_RATE, Double.class); |
| |
| // return the winner with the lowest rate |
| if (oldQuote.doubleValue() <= newQuote.doubleValue()) { |
| return oldExchange; |
| } else { |
| return newExchange; |
| } |
| } |
| |
| } |
| // END SNIPPET: aggregation |