mirror of
https://github.com/ceph/ceph-csi.git
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104 lines
3.1 KiB
Go
104 lines
3.1 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package resource
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import (
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"k8s.io/apimachinery/pkg/api/meta"
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"k8s.io/apimachinery/pkg/types"
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"k8s.io/client-go/discovery"
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"k8s.io/client-go/rest"
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"k8s.io/client-go/restmapper"
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)
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type RESTClientGetter interface {
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ToRESTConfig() (*rest.Config, error)
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ToDiscoveryClient() (discovery.CachedDiscoveryInterface, error)
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ToRESTMapper() (meta.RESTMapper, error)
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}
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type ClientConfigFunc func() (*rest.Config, error)
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type RESTMapperFunc func() (meta.RESTMapper, error)
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type CategoryExpanderFunc func() (restmapper.CategoryExpander, error)
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// RESTClient is a client helper for dealing with RESTful resources
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// in a generic way.
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type RESTClient interface {
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Get() *rest.Request
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Post() *rest.Request
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Patch(types.PatchType) *rest.Request
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Delete() *rest.Request
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Put() *rest.Request
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}
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// RequestTransform is a function that is given a chance to modify the outgoing request.
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type RequestTransform func(*rest.Request)
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// NewClientWithOptions wraps the provided RESTClient and invokes each transform on each
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// newly created request.
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func NewClientWithOptions(c RESTClient, transforms ...RequestTransform) RESTClient {
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if len(transforms) == 0 {
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return c
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}
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return &clientOptions{c: c, transforms: transforms}
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}
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type clientOptions struct {
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c RESTClient
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transforms []RequestTransform
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}
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func (c *clientOptions) modify(req *rest.Request) *rest.Request {
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for _, transform := range c.transforms {
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transform(req)
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}
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return req
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}
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func (c *clientOptions) Get() *rest.Request {
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return c.modify(c.c.Get())
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}
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func (c *clientOptions) Post() *rest.Request {
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return c.modify(c.c.Post())
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}
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func (c *clientOptions) Patch(t types.PatchType) *rest.Request {
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return c.modify(c.c.Patch(t))
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}
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func (c *clientOptions) Delete() *rest.Request {
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return c.modify(c.c.Delete())
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}
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func (c *clientOptions) Put() *rest.Request {
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return c.modify(c.c.Put())
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}
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// ContentValidator is an interface that knows how to validate an API object serialized to a byte array.
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type ContentValidator interface {
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ValidateBytes(data []byte) error
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}
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// Visitor lets clients walk a list of resources.
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type Visitor interface {
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Visit(VisitorFunc) error
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}
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// VisitorFunc implements the Visitor interface for a matching function.
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// If there was a problem walking a list of resources, the incoming error
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// will describe the problem and the function can decide how to handle that error.
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// A nil returned indicates to accept an error to continue loops even when errors happen.
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// This is useful for ignoring certain kinds of errors or aggregating errors in some way.
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type VisitorFunc func(*Info, error) error
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