JXRPC: reading the wsdl file

Question

Hi, this is probably a daft quetion so bare with me !
Ive got a small jaxrpc DII client working which looks like this
QName serviceName = new QName("http://www.xmethods.net/sd/CurrencyExchangeService.wsdl", "CurrencyExchangePort");
ServiceFactory factory = ServiceFactory.newInstance();
Service service = factory.createService(serviceName);
Call call = service.createCall();
QName operationName = new QName("urn:xmethods-CurrencyExchange","getRateRequest");
call.setOperationName(operationName);
call.addParameter("country1",XMLType.XSD_STRING,String.class,ParameterMode.IN);
call.addParameter("country2",XMLType.XSD_STRING,String.class,ParameterMode.IN);
call.setReturnType(XMLType.XSD_FLOAT);
call.setProperty(Call.OPERATION_STYLE_PROPERTY,"rpc");
Call.ENCODINGSTYLE_URI_PROPERTY,"http://schemas.xmlsoap.org/soap/encoding/");
call.setTargetEndpointAddress("http://services.xmethods.net:80/soap");
Object[] actualArgs ={"Spain","France"};
Float rate = (Float) call.invoke(actualArgs);
System.out.println("Rate = '"+rate+"'");
.... which is fine and working ok.
However, instead of having the input / output parameters hard coded in the client is it not possible to read the wsdl document and dynamically calculate what input / output parameters are required? and then prompt the user for them? (In the same way that quickTry by binding point works http://www.bindingpoint.com/quicktryv2.aspx )
Hope someone can point me in the right direction. Many thanks

Answer 1

Kathy,
Thanks for your response! Im now having a different problem which Im positive is something really daft..
This is the client code now using the method you suggested
ServiceFactory factory = ServiceFactory.newInstance();
Service service = factory.createService(new URL("http://www.xmethods.net/sd/2001/BNQuoteService.wsdl"), new QName("http://www.xmethods.net/sd/BNQuoteService.wsdl","BNQuoteService"));
Call[] calls = service.getCalls(new QName("http://www.xmethods.net/sd/BNQuoteService.wsdl","BNQuotePort"));
calls[0].setTargetEndpointAddress("http://services.xmethods.net:80/soap/servlet/rpcrouter");
System.err.println("operation = " calls[0].getOperationName().getLocalPart() " ");
System.err.println("is in/out required = " calls[0].isParameterAndReturnSpecRequired(calls[0].getOperationName()) " ");
System.err.println("param type = "+calls[0].getParameterTypeByName("isbn").getLocalPart());
System.err.println("target Endpoint = "+calls[0].getTargetEndpointAddress());
Object[] actualArgs = {"`"};
String sReturn = ""+ calls[0].invoke(actualArgs);
System.out.println("result = "+sReturn+" ");
the output Im getting sugests that the wsdl doc is being read successfully however it still falls over on the invoke() call.....
operation = getPrice
is in/out required = false
param type = string
target Endpoint = http://services.xmethods.net:80/soap/servlet/rpcrouter
java.rmi.ServerException: service 'http://www.xmethods.net/sd/BNQuoteService.wsdl' unknown
     at com.sun.xml.rpc.client.StreamingSender._raiseFault(StreamingSender.java:372)
     at com.sun.xml.rpc.client.StreamingSender._send(StreamingSender.java:224)
     at com.sun.xml.rpc.client.dii.CallInvokerImpl.doInvoke(CallInvokerImpl.java:61)
     at com.sun.xml.rpc.client.dii.BasicCall.invoke(BasicCall.java:446)
     at com.isa.utils.JAXRPCUtils.test2(JAXRPCUtils.java:39)
     at com.isa.utils.JAXRPCUtils.main(JAXRPCUtils.java:258)
any ideas ?