* @see org.apache.airavata.xbaya.invoker.Invoker#setOperation(java.lang.String)
*/
public void setOperation(String operationName) throws WorkflowException {
try {
WSIFPort port = this.client.getPort();
this.operation = port.createOperation(operationName);
this.inputMessage = this.operation.createInputMessage();
this.outputMessage = this.operation.createOutputMessage();
this.faultMessage = this.operation.createFaultMessage();
} catch (RuntimeException e) {
String message = "The WSDL does not conform to the invoking service.";