if f.Logger != nil && err != context.Canceled {
		f.Logger(err)
	}
	w.WriteHeader(http.StatusBadGateway)
}

func (f *Forwarder) getURLFromRequest(req *http.Request) *url.URL {
	// If the Request was created by Go via a real HTTP request,  RequestURI will
	// contain the original query string. If the Request was created in code, RequestURI

     *
     * @param model The model to validate, must not be {@code null}.
     * @param request The model building request that holds further settings, must not be {@code null}.
     * @param problems The container used to collect problems that were encountered, must not be {@code null}.
     */
    default void validateFileModel(Model model, ModelBuildingRequest request, ModelProblemCollector problems) {
        // do nothing
    }

    /**

    }

    @Override public Response intercept(Chain chain) throws IOException {
      Request request = chain.request();
      if (request.url().host().equals(host)) {
        request = request.newBuilder()
            .header("Authorization", credentials)
            .build();
      }
      return chain.proceed(request);
    }
  }

  override fun createRequestBody(
    request: Request,
    contentLength: Long,
  ): Sink {
    return when {
      request.body?.isDuplex() == true -> throw ProtocolException(
        "Duplex connections are not supported for HTTP/1",
      )
      request.isChunked -> newChunkedSink() // Stream a request body of unknown length.
      contentLength != -1L -> newKnownLengthSink() // Stream a request body of a known length.

        ModelBuilderRequestBuilder(ModelBuilderRequest request) {
            this.session = request.getSession();
            this.requestType = request.getRequestType();
            this.locationTracking = request.isLocationTracking();
            this.recursive = request.isRecursive();
            this.source = request.getSource();
            this.profiles = request.getProfiles();

        String xml = new DefaultToolchainsXmlFactory().toXmlString(persistedToolchains.getDelegate());
        ToolchainsBuildingRequest request = new DefaultToolchainsBuildingRequest();
        request.setUserToolchainsSource(new StringSource(xml));

        ToolchainsBuildingResult result = toolchainBuilder.build(request);
        assertNotNull(result.getEffectiveToolchains());

	"testing"
)

// Tests object location.
func TestObjectLocation(t *testing.T) {
	testCases := []struct {
		request          *http.Request
		bucket, object   string
		domains          []string
		expectedLocation string
	}{
		// Server binding to localhost IP with https.
		{
			request: &http.Request{
				Host: "127.0.0.1:9000",
				Header: map[string][]string{
					"X-Forwarded-Scheme": {httpScheme},
				},
			},

// ResourcePolicyRule matches a resource request if and only if: (a)
// at least one member of verbs matches the request, (b) at least one
// member of apiGroups matches the request, (c) at least one member of
// resources matches the request, and (d) either (d1) the request does
// not specify a namespace (i.e., `Namespace==""`) and clusterScope is
// true or (d2) the request specifies a namespace and least one member

     *     chain.proceed(chain.request())
     * }
     * ```
     */
    inline operator fun invoke(crossinline block: (chain: Chain) -> Response): Interceptor = Interceptor { block(it) }
  }

  interface Chain {
    fun request(): Request

    @Throws(IOException::class)
    fun proceed(request: Request): Response

    /**

    public static String[] getParamValueArray(final HttpServletRequest request, final String param) {
        return simplifyArray(request.getParameterValues(param));
    }

    protected FacetInfo createFacetInfo(final HttpServletRequest request) {
        final String[] fields = getParamValueArray(request, "facet.field");
        final String[] queries = getParamValueArray(request, "facet.query");