code: public Channel build() {
          Channel channel = null;
          if (_channelClass != null) {
              channel = Construction.construct(_channelClass);
              if (channel instanceof SwitchYardServiceChannel) {
                  SwitchYardServiceChannel sysc = (SwitchYardServiceChannel)channel;
                  sysc.setServiceName(_serviceName);
                  sysc.setOperationName(_operationName);
                  sysc.setInvoker(new SwitchYardServiceInvoker(getServiceDomain(), _targetNamespace));
              }
          }
          return channel;
      }
docs: Builds a Channel.
  
  @return a Channel