Loan Broker Example

This example shows how to use Camel to implement the EIP's loan broker example.

The example has two versions, one is queue version which leverages the message queue to combinate the credit agency and bank loan quote processing and it uses the InOnly exchage pattern; the other is web service version which shows how to integrate the credit agency and bank web services together and it uses the InOut exchange pattern.

Implementation with message queue (JMS)

The queue version of loan broker is based on the Camel-JMS component, and it shows how to using the message queue to connect the different service models (such as the credit agency , and banks).

The example should run if you type
mvn exec:java -PQueue.LoanBroker
mvn exec:java -PQueue.Client

To stop the example hit ctrl + c

let's take a look how this service modules are put together.

The CreditAgency , Bank and Translator are all the implementation of Processor interface. We implement the business logicals in the void process(Exchange exchange) method.

CreditAgency

Bank

Translator

You may found we set a custom aggregation strategy to find out the lowest loan rate from bank response message.

We start the loan broker after we start up the ActiveMq broker and the connection factory of Camel-JMS component.

Now we can send the request from client

Here is how we pull the response message