UndertowRequestUpgradeStrategy.java 文件源码

private ConfiguredServerEndpoint createConfiguredServerEndpoint(String selectedProtocol,
        List<Extension> selectedExtensions, Endpoint endpoint, HttpServletRequest servletRequest) {

    String path = servletRequest.getRequestURI();  // shouldn't matter
    ServerEndpointRegistration endpointRegistration = new ServerEndpointRegistration(path, endpoint);
    endpointRegistration.setSubprotocols(Arrays.asList(selectedProtocol));
    endpointRegistration.setExtensions(selectedExtensions);

    EncodingFactory encodingFactory = new EncodingFactory(
            Collections.<Class<?>, List<InstanceFactory<? extends Encoder>>>emptyMap(),
            Collections.<Class<?>, List<InstanceFactory<? extends Decoder>>>emptyMap(),
            Collections.<Class<?>, List<InstanceFactory<? extends Encoder>>>emptyMap(),
            Collections.<Class<?>, List<InstanceFactory<? extends Decoder>>>emptyMap());
    try {
        return (endpointConstructorWithEndpointFactory ?
                endpointConstructor.newInstance(endpointRegistration,
                        new EndpointInstanceFactory(endpoint), null, encodingFactory, null) :
                endpointConstructor.newInstance(endpointRegistration,
                        new EndpointInstanceFactory(endpoint), null, encodingFactory));
    }
    catch (Exception ex) {
        throw new HandshakeFailureException("Failed to instantiate ConfiguredServerEndpoint", ex);
    }
}