[mashup-dev] Annotating JavaScript to make JavaScript Web services Deployment easy

[Sameera Madushan Jayasoma]

Hi all,
Deploying a JavaScript Web services can be as simple as just deploying 
the JavaScript source file without  a services.xml. In this instance we 
need a way to declare, what functions in the js source file, should be 
exposed as Web methods. As an example, consider the following js source.

//@WebMethod
function getCurrencyCode(ipAddress){
    var code = getCountry(ipAddress);
    ....
    return currencyCode;
}

function getCountry(ipAddress){
    .......
    return countryName;
}

Only the function getCurrencyCode() is to be exposed as a WebMethod.

I have developed a small patch for Rhino which enable parsing the above 
special comments and mark the function as a WebMethod. Then it is 
possible to modify the JSDeployer written by Thilina in the following 
manner to identify WebMethods.

Object[] ids = engine.getIds();
for (int i = 0; i < ids.length; i++) {
	String method = (String) ids[i];
	Object object = engine.get(method, engine);
-	if(object instanceof Function){
+	if(object instanceof BaseFunction && ((BaseFunction)object).isWebMethod()){
		AxisOperation axisOp = new InOutAxisOperation(new QName(method));
		axisOp.setMessageReceiver(new JavaScriptReceiver());
		axisOp.setStyle(WSDLConstants.STYLE_DOC);
		axisService.addOperation(axisOp);
	}

}

This patch can be extended to support the required annotations defined 
in JSR-181.
Sameera