The aim is to take a document, look for a specific element (by local name and URI rather than name including prefix) and replace its value. Where is this useful? Imagine a gateway protecting an internal web service. If that web service is WS-A enabled, it therefores has a wsa:From field which contains its internal URI. Obviously the gateway abstracts the internal service from what is seen outside as a ‘virtual’ or ‘logical’ service. One therefore needs to update the wsa:From field to reflect an external URI. Sample XML: <?xml version=”1.0″ encoding=”UTF-8″?> <soap12:Envelope xmlns:soap12=”http://schemas.xmlsoap.org/soap/envelope/” xmlns:xsd=”http://www.w3.org/2001/XMLSchema” xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xmlns:wsa05=”http://www.w3.org/2005/08/addressing” xmlns:uddi=”urn:uddi-org:api_v2″ xmlns:ns1=”http://ws.samples.engage.bt.com” xsi:schemaLocation=”http://schemas.xmlsoap.org/soap/envelope/ http://schemas.xmlsoap.org/soap/envelope/”> <soap12:Header> <wsa05:To>http://somelocation</wsa05:To> <wsa05:Action>urn:greet</wsa05:Action> <wsa05:From> <wsa05:Address>http://internaluri.intra.mycompany.com</wsa05:Address> </wsa05:From> </soap12:Header> <soap12:Body> <ns1:greet soap12:encodingStyle=”http://schemas.xmlsoap.org/soap/encoding/”> <in0 xsi:type=”xsd:string”>Philip</in0> </ns1:greet> </soap12:Body> </soap12:Envelope> The XSL to be […]