[switchyard-issues] [JBoss JIRA] Created: (SWITCHYARD-410) JAXB transformation fails when ObjectFactory does not produce JAXBElement<?>

[Keith Babo (JIRA)]

JAXB transformation fails when ObjectFactory does not produce JAXBElement<?>
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                 Key: SWITCHYARD-410
                 URL: https://issues.jboss.org/browse/SWITCHYARD-410
             Project: SwitchYard
          Issue Type: Bug
          Components: transformation
            Reporter: Keith Babo
            Assignee: Tom Fennelly
             Fix For: 0.2


JAXBUnmarshalTransformer assumes that the return type for unmarshal will always be a JAXBElement type, but this is not always true.  Take the following generated JAXB ObjectFactory:

{noformat}
@XmlRegistry
public class ObjectFactory {

    /**
     * Create a new ObjectFactory that can be used to create new instances of schema derived classes for package: org.switchyard.demo.openshift
     * 
     */
    public ObjectFactory() {
    }

    /**
     * Create an instance of {@link Order }
     * 
     */
    public Order createOrder() {
        return new Order();
    }

    /**
     * Create an instance of {@link OrderAck }
     * 
     */
    public OrderAck createOrderAck() {
        return new OrderAck();
    }
 
}
{noformat}

The above creates a ClassCastException in the transformation code.  Suggest a slight tweak to the logic in JAXBUnmarshalTransformer :

{noformat}
Object unmarshalledObject = unmarshaller.unmarshal(message.getContent(Source.class));
if (unmarshalledObject instanceof JAXBElement) {
   message.setContent(((JAXBElement)unmarshalledObject).getValue());
} else {
   message.setContent(unmarshalledObject);
}
{noformat}

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