/**
* 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