| /** |
| * 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.webservice.version; |
| |
| import org.apache.camel.Exchange; |
| import org.apache.camel.loanbroker.webservice.version.bank.BankQuote; |
| import org.apache.camel.processor.aggregate.AggregationStrategy; |
| |
| //START SNIPPET: aggregating |
| public class BankResponseAggregationStrategy implements AggregationStrategy { |
| |
| public static final String BANK_QUOTE = "bank_quote"; |
| |
| public Exchange aggregate(Exchange oldExchange, Exchange newExchange) { |
| // the first time we only have the new exchange |
| if (oldExchange == null) { |
| return newExchange; |
| } |
| |
| // Get the bank quote instance from the exchange |
| BankQuote oldQuote = oldExchange.getProperty(BANK_QUOTE, BankQuote.class); |
| // Get the oldQute from out message body if we can't get it from the exchange |
| if (oldQuote == null) { |
| oldQuote = oldExchange.getIn().getBody(BankQuote.class); |
| } |
| // Get the newQuote |
| BankQuote newQuote = newExchange.getIn().getBody(BankQuote.class); |
| Exchange result = null; |
| BankQuote bankQuote; |
| |
| if (newQuote.getRate() >= oldQuote.getRate()) { |
| result = oldExchange; |
| bankQuote = oldQuote; |
| } else { |
| result = newExchange; |
| bankQuote = newQuote; |
| } |
| // Set the lower rate BankQuote instance back to aggregated exchange |
| result.setProperty(BANK_QUOTE, bankQuote); |
| // Set the return message for the client |
| result.getOut().setBody("The best rate is " + bankQuote.toString()); |
| |
| return result; |
| } |
| |
| } |
| //END SNIPPET: aggregating |
