Question

Using Glassfish Metro implementation of JAX-WS specification, is it possible to generate SOAP request message for specific operation without actually invoking the operation. Something like SOAPUI ability to generate sample SOAP message basing just on WSDL only that I would like to generate it providing parameters for operation.

Thanks.

Answer 1

OK. I think I’ve got it. It ain’t pretty and it ain’t clean as it uses reflection, bases on Oracle proprietary classes and assumes that you’ve your client side WS part already generated but if you need such functionality as badly as I do with deadline approaching unavoidable like death itself then hear my tale 🙂

// location of wsdl file provided in URL format
// ex. file://localhost/C:/wsdl.wsdl for local file
String wsdlLocation = "wsdlLocation";

try{
    // we're assuming that you've already generated WS client side
    GeneratedService service = new GeneratedService(
        new URL(wsdlLocation),
        new QName("namespaceURI", "localPart"));

    GeneratedPort port = service.getGeneratedPort();

    SEIStub stub = (SEIStub) Proxy.getInvocationHandler(port);

    Field methodHandlersField =
        stub.getClass().getDeclaredField("methodHandlers");
    //hack to make private field accessible
    methodHandlersField.setAccessible(true);

    Method operationMethod = null;
    Object args = null;

    switch (somethingToTellYouWhatMethodToInvoke){
        case someMethodValue:
            operationMethod = GeneratedPort.class.getMethod(
                "methodName", classes, of, your, attributes);
            args = new Object[]{attributes, of, your, method};
            break;
        default:
            throw new SomeException("some message");
            break;
    }

    MethodHandler handler = ((Map<Method, MethodHandler>) methodHandlersField.
        get(stub)).get(operationMethod);

    Method createMessageMethod = handler.getClass().getSuperclass().
        getDeclaredMethod("createRequestMessage", Object[].class);
    //another hack
    createMessageMethod.setAccessible(true);

    Message message = (Message) createMessageMethod.invoke(handler, args);

    Transformer transformer =
        TransformerFactory.newInstance().newTransformer();
    transformer.setOutputProperty(OutputKeys.INDENT, "yes");
    transformer.setOutputProperty(
        "{http://xml.apache.org/xslt}indent-amount", "2");
    transformer.transform(
        message.readPayloadAsSource(), new StreamResult(System.out));
} catch (Exception e){
    //lots of things to catch
    e.printStackTrace();
}

So once again this is very bad solution but until some heavy thinker comes and saves my day with something better or Sun moves classes I need to more friendly package it has to suffice.