import com.sun.xml.internal.ws.api.pipe.TubelineAssembler; //导入依赖的package包/类
/**
 * Creates a new pipeline for the given port name.
 */
private Tube createPipeline(WSPortInfo portInfo, WSBinding binding) {
    //Check all required WSDL extensions are understood
    checkAllWSDLExtensionsUnderstood(portInfo, binding);
    SEIModel seiModel = null;
    Class sei = null;
    if (portInfo instanceof SEIPortInfo) {
            SEIPortInfo sp = (SEIPortInfo) portInfo;
        seiModel = sp.model;
        sei = sp.sei;
    }
    BindingID bindingId = portInfo.getBindingId();

    TubelineAssembler assembler = TubelineAssemblerFactory.create(
            Thread.currentThread().getContextClassLoader(), bindingId, owner.getContainer());
    if (assembler == null) {
        throw new WebServiceException("Unable to process bindingID=" + bindingId); // TODO: i18n
    }
    return assembler.createClient(
            new ClientTubeAssemblerContext(
                    portInfo.getEndpointAddress(),
                    portInfo.getPort(),
                    this, binding, owner.getContainer(), ((BindingImpl) binding).createCodec(), seiModel, sei));
}