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streamer.go 2.31 KB
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/*
Copyright 2014 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 rest
import (
"io"
"net/http"
"net/url"
"strings"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/runtime/schema"
"k8s.io/apiserver/pkg/registry/rest"
)
// LocationStreamer is a resource that streams the contents of a particular
// location URL
type LocationStreamer struct {
Location *url.URL
Transport http.RoundTripper
ContentType string
Flush bool
ResponseChecker HttpResponseChecker
}
// a LocationStreamer must implement a rest.ResourceStreamer
var _ rest.ResourceStreamer = &LocationStreamer{}
func (obj *LocationStreamer) GetObjectKind() schema.ObjectKind {
return schema.EmptyObjectKind
}
func (obj *LocationStreamer) DeepCopyObject() runtime.Object {
panic("rest.LocationStreamer does not implement DeepCopyObject")
}
// InputStream returns a stream with the contents of the URL location. If no location is provided,
// a null stream is returned.
func (s *LocationStreamer) InputStream(apiVersion, acceptHeader string) (stream io.ReadCloser, flush bool, contentType string, err error) {
if s.Location == nil {
// If no location was provided, return a null stream
return nil, false, "", nil
}
transport := s.Transport
if transport == nil {
transport = http.DefaultTransport
}
client := &http.Client{Transport: transport}
resp, err := client.Get(s.Location.String())
if err != nil {
return nil, false, "", err
}
if s.ResponseChecker != nil {
if err = s.ResponseChecker.Check(resp); err != nil {
return nil, false, "", err
}
}
contentType = s.ContentType
if len(contentType) == 0 {
contentType = resp.Header.Get("Content-Type")
if len(contentType) > 0 {
contentType = strings.TrimSpace(strings.SplitN(contentType, ";", 2)[0])
}
}
flush = s.Flush
stream = resp.Body
return
}
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1
https://gitee.com/meoom/kubernetes.git
git@gitee.com:meoom/kubernetes.git
meoom
kubernetes
kubernetes
v1.10.5-beta.0

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