2.37. Java Object Graph Transformation

<example.srcmodel.Order>
    <header>
        <customerNumber>
            </customerNumber>
           <customerName>
       </customerName>
    </header>
    <orderItems>
        <example.srcmodel.OrderItem>
            <productId>
           </productId>
            <quantity>
            </quantity>
            <price>
            </price>
        </example.srcmodel.OrderItem>
    </orderItems>
</example.srcmodel.Order>

<?xml version="1.0"?>
<smooks-resource-list xmlns="http://www.milyn.org/xsd/smooks-1.1.xsd" xmlns:jb="http://www.milyn.org/xsd/smooks/javabean-1.4.xsd">
 
    <jb:bean BeanId="lineOrder" class="example.trgmodel.LineOrder" createOnElement="example.srcmodel.Order">
        <jb:wiring property="lineItems" BeanIdRef="lineItems" />
        <jb:value property="customerId" data="header/customerNumber" />
        <jb:value property="customerName" data="header/customerName" />
    </jb:bean>
 
    <jb:bean BeanId="lineItems" class="example.trgmodel.LineItem[]" createOnElement="orderItems">
        <jb:wiring BeanIdRef="lineItem" />
    </jb:bean>
 
 
    <jb:bean BeanId="lineItem" class="example.trgmodel.LineItem" createOnElement="example.srcmodel.OrderItem">
        <jb:value property="productCode" data="example.srcmodel.OrderItem/productId" />
        <jb:value property="unitQuantity" data="example.srcmodel.OrderItem/quantity" />
        <jb:value property="unitPrice" data="example.srcmodel.OrderItem/price" />
    </jb:bean>
 
</smooks-resource-list>

protected LineOrder runSmooksTransform(Order srcOrder) throws IOException, SAXException {
    Smooks smooks = new Smooks("smooks-config.xml");
    ExecutionContext executionContext = smooks.createExecutionContext();
 
    // Transform the source Order to the target LineOrder via a
    // JavaSource and JavaResult instance...
    JavaSource source = new JavaSource(srcOrder);
    JavaResult result = new JavaResult();
 
    // Configure the execution context to generate a report...
    executionContext.setEventListener(new HtmlReportGenerator("target/report/report.html"));
 
    smooks.filterSource(executionContext, source, result);
 
    return (LineOrder) result.getBean("lineOrder");
}