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restclient.go 3.78 KB
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Mike Danese 提交于 2015-02-21 10:54 . add PATCH to apiserver
/*
Copyright 2014 Google Inc. All rights reserved.
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 client
import (
"net/url"
"strings"
"time"
"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
)
// RESTClient imposes common Kubernetes API conventions on a set of resource paths.
// The baseURL is expected to point to an HTTP or HTTPS path that is the parent
// of one or more resources. The server should return a decodable API resource
// object, or an api.Status object which contains information about the reason for
// any failure.
//
// Most consumers should use client.New() to get a Kubernetes API client.
type RESTClient struct {
baseURL *url.URL
// A string identifying the version of the API this client is expected to use.
apiVersion string
// LegacyBehavior controls if URLs should encode the namespace as a query param,
// and if resource case is preserved for supporting older API conventions of
// Kubernetes. Newer clients should leave this false.
LegacyBehavior bool
// Codec is the encoding and decoding scheme that applies to a particular set of
// REST resources.
Codec runtime.Codec
// Set specific behavior of the client. If not set http.DefaultClient will be
// used.
Client HTTPClient
Timeout time.Duration
}
// NewRESTClient creates a new RESTClient. This client performs generic REST functions
// such as Get, Put, Post, and Delete on specified paths. Codec controls encoding and
// decoding of responses from the server. If this client should use the older, legacy
// API conventions from Kubernetes API v1beta1 and v1beta2, set legacyBehavior true.
func NewRESTClient(baseURL *url.URL, apiVersion string, c runtime.Codec, legacyBehavior bool) *RESTClient {
base := *baseURL
if !strings.HasSuffix(base.Path, "/") {
base.Path += "/"
}
base.RawQuery = ""
base.Fragment = ""
return &RESTClient{
baseURL: &base,
apiVersion: apiVersion,
Codec: c,
LegacyBehavior: legacyBehavior,
}
}
// Verb begins a request with a verb (GET, POST, PUT, DELETE).
//
// Example usage of RESTClient's request building interface:
// c := NewRESTClient(url, codec)
// resp, err := c.Verb("GET").
// Path("pods").
// SelectorParam("labels", "area=staging").
// Timeout(10*time.Second).
// Do()
// if err != nil { ... }
// list, ok := resp.(*api.PodList)
//
func (c *RESTClient) Verb(verb string) *Request {
// TODO: uncomment when Go 1.2 support is dropped
//var timeout time.Duration = 0
// if c.Client != nil {
// timeout = c.Client.Timeout
// }
return NewRequest(c.Client, verb, c.baseURL, c.Codec, c.LegacyBehavior, c.LegacyBehavior).Timeout(c.Timeout)
}
// Post begins a POST request. Short for c.Verb("POST").
func (c *RESTClient) Post() *Request {
return c.Verb("POST")
}
// Put begins a PUT request. Short for c.Verb("PUT").
func (c *RESTClient) Put() *Request {
return c.Verb("PUT")
}
// Patch begins a PATCH request. Short for c.Verb("Patch").
func (c *RESTClient) Patch() *Request {
return c.Verb("PATCH")
}
// Get begins a GET request. Short for c.Verb("GET").
func (c *RESTClient) Get() *Request {
return c.Verb("GET")
}
// Delete begins a DELETE request. Short for c.Verb("DELETE").
func (c *RESTClient) Delete() *Request {
return c.Verb("DELETE")
}
// APIVersion returns the APIVersion this RESTClient is expected to use.
func (c *RESTClient) APIVersion() string {
return c.apiVersion
}
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