mirror of
https://github.com/VictoriaMetrics/VictoriaMetrics.git
synced 2024-12-18 14:40:26 +01:00
81 lines
2.6 KiB
Go
81 lines
2.6 KiB
Go
// Copyright 2023 Google LLC
|
|
//
|
|
// 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 storage
|
|
|
|
import (
|
|
"google.golang.org/api/option"
|
|
"google.golang.org/api/option/internaloption"
|
|
)
|
|
|
|
// storageConfig contains the Storage client option configuration that can be
|
|
// set through storageClientOptions.
|
|
type storageConfig struct {
|
|
useJSONforReads bool
|
|
readAPIWasSet bool
|
|
}
|
|
|
|
// newStorageConfig generates a new storageConfig with all the given
|
|
// storageClientOptions applied.
|
|
func newStorageConfig(opts ...option.ClientOption) storageConfig {
|
|
var conf storageConfig
|
|
for _, opt := range opts {
|
|
if storageOpt, ok := opt.(storageClientOption); ok {
|
|
storageOpt.ApplyStorageOpt(&conf)
|
|
}
|
|
}
|
|
return conf
|
|
}
|
|
|
|
// A storageClientOption is an option for a Google Storage client.
|
|
type storageClientOption interface {
|
|
option.ClientOption
|
|
ApplyStorageOpt(*storageConfig)
|
|
}
|
|
|
|
// WithJSONReads is an option that may be passed to [NewClient].
|
|
// It sets the client to use the Cloud Storage JSON API for object
|
|
// reads. Currently, the default API used for reads is XML, but JSON will
|
|
// become the default in a future release.
|
|
//
|
|
// Setting this option is required to use the GenerationNotMatch condition. We
|
|
// also recommend using JSON reads to ensure consistency with other client
|
|
// operations (all of which use JSON by default).
|
|
//
|
|
// Note that when this option is set, reads will return a zero date for
|
|
// [ReaderObjectAttrs].LastModified and may return a different value for
|
|
// [ReaderObjectAttrs].CacheControl.
|
|
func WithJSONReads() option.ClientOption {
|
|
return &withReadAPI{useJSON: true}
|
|
}
|
|
|
|
// WithXMLReads is an option that may be passed to [NewClient].
|
|
// It sets the client to use the Cloud Storage XML API for object reads.
|
|
//
|
|
// This is the current default, but the default will switch to JSON in a future
|
|
// release.
|
|
func WithXMLReads() option.ClientOption {
|
|
return &withReadAPI{useJSON: false}
|
|
}
|
|
|
|
type withReadAPI struct {
|
|
internaloption.EmbeddableAdapter
|
|
useJSON bool
|
|
}
|
|
|
|
func (w *withReadAPI) ApplyStorageOpt(c *storageConfig) {
|
|
c.useJSONforReads = w.useJSON
|
|
c.readAPIWasSet = true
|
|
}
|