Monday, July 25, 2011

Deriving and Binding WSLD URL at runtime for ADF Application

There are scenario when developers tend to use an exposed WSDL URL and consume it in their ADF Application.
Say, developer is trying to generate Java client proxy classes and use them to build the Application by invoking the Webservice methods.

When you generate the proxies, the WSDL URL gets hardcoded in the class.
Something like this
        wsdlLocationURL =

When you deploy the application or the Webservice deployment changes from server to server, then its hard to change in the java class, then redeploy the Ear altogether.

A simple solution IMO is,
  • Define a WSDL URL Connection in connections.xml.("MyWSDLConnection")
  • In your Client Proxy,read this WSDL URL Connection from connections.xml programmatically and use Bindingprovider to bind the URL at runtime to your proxy.
Connections.xml entry
   <Reference name="MyWSDLConnection" className="oracle.adf.model.connection.url.HttpURLConnection" xmlns="">
<Factory className="oracle.adf.model.connection.url.URLConnectionFactory"/>
<XmlRefAddr addrType="MyWSDLConnection">
<urlconnection name="MyWSDLConnection" url="http://myServer:7002/app/CrawlerServicePort?WSDL"/>

This eliminates the changes to the java class and avoids redeployment.

    public String readURLFromConnectionsXML() {
String wsdlURL = null;
try {
URLConnectionProxy wsConnection =
wsdlURL= wsConnection.getURL().toExternalForm();
} catch (Exception e) {
return wsdlURL;

Use this WSDL URL to bind at runtime to your Webservice java client proxy code.
In your class

private static CrawlerService_Service crawlerService_Service;

public static void main(String [] args)

crawlerService_Service = new CrawlerService_Service();
CrawlerService_Service crawlerService_Service = crawlerService_Service.getCrawlerServicePort();

BindingProvider bp = (BindingProvider)sMMPostCrawlerService;
String CrawlerServiceWSDL = readURLFromConnectionsXML();
bp.getRequestContext().put(BindingProvider.ENDPOINT_ADDRESS_PROPERTY, CrawlerServiceWSDL);


Gerard Davison said...


There is no need to jump through these hoops, check out 13.2.2 in this document for who to do this using the official API:


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