import com.sun.xml.internal.ws.handler.HandlerTube; //导入依赖的package包/类
/**
 * Creates a {@link Tube} that invokes protocol and logical handlers.
 */
public Tube createHandlerTube(Tube next) {
    HandlerTube cousinHandlerTube = null;
    //XML/HTTP Binding can have only LogicalHandlerPipe
    if (binding instanceof SOAPBinding) {
        //Add MessageHandlerTube
        HandlerTube messageHandlerTube = new ClientMessageHandlerTube(seiModel, binding, wsdlModel, next);
        next = cousinHandlerTube = messageHandlerTube;

        //Add SOAPHandlerTuber
        HandlerTube soapHandlerTube = new ClientSOAPHandlerTube(binding, next, cousinHandlerTube);
        next = cousinHandlerTube = soapHandlerTube;
    }
    return new ClientLogicalHandlerTube(binding, seiModel, next, cousinHandlerTube);
}