@Override
 public ProcessResult process(
     RequestInfo requestInfo, Map<String, String> handler, Map<String, Object> extParameters)
     throws Exception {
   RequestInfo newRequestInfo = BssServiceUtils.copyRequestInfo(requestInfo);
   newRequestInfo.getRequestHeader().setBizCode("xchangePromotion");
   return SoapCallUtils.process(
       this,
       newRequestInfo,
       newRequestInfo.getRequestBody().getServiceNumber(),
       newRequestInfo.getRequestBody().getExtParameters(),
       handler,
       "ws.cbs.query.timeout");
 }