/**
* 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 java.util.ArrayList;
import java.util.List;
import javax.jms.ConnectionFactory;
import org.apache.activemq.ActiveMQConnectionFactory;
import org.apache.camel.CamelContext;
import org.apache.camel.Exchange;
import org.apache.camel.Message;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.cxf.CxfConstants;
import org.apache.camel.component.jms.JmsComponent;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.loanbroker.webservice.version.bank.BankServer;
import org.apache.camel.loanbroker.webservice.version.credit.CreditAgencyServer;
import org.apache.camel.loanbroker.webservice.version.credit.CreditAgencyWS;
import org.apache.camel.processor.aggregate.UseLatestAggregationStrategy;
import org.apache.camel.spring.Main;
import org.apache.cxf.BusFactory;
import org.apache.cxf.frontend.ClientFactoryBean;
import org.apache.cxf.frontend.ClientProxyFactoryBean;
import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;
/**
* The LoanBroker is a RouteBuilder which builds the whole loan message routing rules
*
*
*/
public class LoanBroker extends RouteBuilder {
//START SNIPPET: server
public static void main(String... args) throws Exception {
CamelContext context = new DefaultCamelContext();
CreditAgencyServer creditAgencyServer = new CreditAgencyServer();
// Start the credit server
creditAgencyServer.start();
// Start the bank server
BankServer bankServer = new BankServer();
bankServer.start();
// Start the camel context
context.addRoutes(new LoanBroker());
context.start();
// Start the loan broker
Thread.sleep(5 * 60 * 1000);
context.stop();
Thread.sleep(1000);
bankServer.stop();
creditAgencyServer.stop();
}
//END SNIPPET: server
/**
* Lets configure the Camel routing rules using Java code...
*/
public void configure() {
// START SNIPPET: dsl
// Router 1 to call the bank endpoints sequentially
from(Constants.LOANBROKER_URI)
// Using the CreditScoreProcessor to call the credit agency service
.process(new CreditScoreProcessor(Constants.CREDITAGENCY_ADDRESS))
// Set the aggregation strategy on the multicast pattern
.multicast(new BankResponseAggregationStrategy())
// Send out the request to three different banks sequentially
.to(Constants.BANK1_URI, Constants.BANK2_URI, Constants.BANK3_URI);
// Router 2 to call the bank endpoints in parallel
from(Constants.PARALLEL_LOANBROKER_URI)
.process(new CreditScoreProcessor(Constants.CREDITAGENCY_ADDRESS))
// Using the thread pool to send out messages to three different banks in parallel
.multicast(new BankResponseAggregationStrategy())
// Camel will create a thread pool with the size of the send to endpoints
// for sending the message in parallel
.parallelProcessing()
.to(Constants.BANK1_URI, Constants.BANK2_URI, Constants.BANK3_URI);
//END SNIPPET: dsl
}
//START SNIPPET: credit
class CreditScoreProcessor implements Processor {
private String creditAgencyAddress;
private CreditAgencyWS proxy;
public CreditScoreProcessor(String address) {
creditAgencyAddress = address;
proxy = getProxy();
}
private CreditAgencyWS getProxy() {
// Here we use JaxWs front end to create the proxy
JaxWsProxyFactoryBean proxyFactory = new JaxWsProxyFactoryBean();
ClientFactoryBean clientBean = proxyFactory.getClientFactoryBean();
clientBean.setAddress(creditAgencyAddress);
clientBean.setServiceClass(CreditAgencyWS.class);
clientBean.setBus(BusFactory.getDefaultBus());
return (CreditAgencyWS)proxyFactory.create();
}
@SuppressWarnings("unchecked")
public void process(Exchange exchange) throws Exception {
Message requestMessage = exchange.getIn();
List<Object> request = (List<Object>) requestMessage.getBody();
String ssn = (String)request.get(0);
Double amount = (Double) request.get(1);
Integer loanDuriation = (Integer)request.get(2);
int historyLength = proxy.getCreditHistoryLength(ssn);
int score = proxy.getCreditScore(ssn);
// create the invocation message for Bank client
List<Object> bankRequest = new ArrayList<Object>();
bankRequest.add(ssn);
bankRequest.add(amount);
bankRequest.add(loanDuriation);
bankRequest.add(historyLength);
bankRequest.add(score);
exchange.getOut().setBody(bankRequest);
exchange.getOut().setHeader(CxfConstants.OPERATION_NAME, "getQuote");
}
}
//END SNIPPET: credit
}