Dependencies for the affinity router and the
affinity routing daemon.
Change-Id: Icda72c3594ef7f8f0bc0c33dc03087a4c25529ca
diff --git a/vendor/k8s.io/client-go/discovery/round_tripper.go b/vendor/k8s.io/client-go/discovery/round_tripper.go
new file mode 100644
index 0000000..4e2bc24
--- /dev/null
+++ b/vendor/k8s.io/client-go/discovery/round_tripper.go
@@ -0,0 +1,62 @@
+/*
+Copyright 2017 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+ http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package discovery
+
+import (
+ "net/http"
+ "path/filepath"
+
+ "github.com/gregjones/httpcache"
+ "github.com/gregjones/httpcache/diskcache"
+ "github.com/peterbourgon/diskv"
+ "k8s.io/klog"
+)
+
+type cacheRoundTripper struct {
+ rt *httpcache.Transport
+}
+
+// newCacheRoundTripper creates a roundtripper that reads the ETag on
+// response headers and send the If-None-Match header on subsequent
+// corresponding requests.
+func newCacheRoundTripper(cacheDir string, rt http.RoundTripper) http.RoundTripper {
+ d := diskv.New(diskv.Options{
+ BasePath: cacheDir,
+ TempDir: filepath.Join(cacheDir, ".diskv-temp"),
+ })
+ t := httpcache.NewTransport(diskcache.NewWithDiskv(d))
+ t.Transport = rt
+
+ return &cacheRoundTripper{rt: t}
+}
+
+func (rt *cacheRoundTripper) RoundTrip(req *http.Request) (*http.Response, error) {
+ return rt.rt.RoundTrip(req)
+}
+
+func (rt *cacheRoundTripper) CancelRequest(req *http.Request) {
+ type canceler interface {
+ CancelRequest(*http.Request)
+ }
+ if cr, ok := rt.rt.Transport.(canceler); ok {
+ cr.CancelRequest(req)
+ } else {
+ klog.Errorf("CancelRequest not implemented by %T", rt.rt.Transport)
+ }
+}
+
+func (rt *cacheRoundTripper) WrappedRoundTripper() http.RoundTripper { return rt.rt.Transport }