Returns a response to a SOAP message.
How to get full SOAP message envelope (envelope = header + body): msg.getEnvelope().getSource()
How to get header section: msg.getEnvelope().getHeader().getSource()
How to get body section: msg.getEnvelope().getBody().getSource()
How to convert XML String to XML Source: XmlUtils.xmlStringToSource(string);
How to convert XML Source to XML String: XmlUtils.sourceToXmlString(source);
@param request SOAP message to handle
@return response in the XML source format containing the whole SOAP envelope