mirror of
https://github.com/letic/terraform-provider-google.git
synced 2024-09-07 01:26:43 +00:00
![Chris Hawk](/assets/img/avatar_default.png)
I'm working on Stackdriver monitoring in another branch, which required updating `google.golang.org/genproto`, which required updating `google.golang.org/grpc`, which required updating `github.com/golang/protobuf`, and so on. This PR updates all of the Google-provided deps to their latest versions. In addition, there is: - A change in config.go to reflect an updated type name - Five files changed by `make fmt` Tested with `make build`, `make test`, and `make testacc`.
198 lines
4.3 KiB
Go
198 lines
4.3 KiB
Go
// Copyright 2017, OpenCensus 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 tag
|
|
|
|
import (
|
|
"bytes"
|
|
"context"
|
|
"fmt"
|
|
"sort"
|
|
)
|
|
|
|
// Tag is a key value pair that can be propagated on wire.
|
|
type Tag struct {
|
|
Key Key
|
|
Value string
|
|
}
|
|
|
|
// Map is a map of tags. Use New to create a context containing
|
|
// a new Map.
|
|
type Map struct {
|
|
m map[Key]string
|
|
}
|
|
|
|
// Value returns the value for the key if a value for the key exists.
|
|
func (m *Map) Value(k Key) (string, bool) {
|
|
if m == nil {
|
|
return "", false
|
|
}
|
|
v, ok := m.m[k]
|
|
return v, ok
|
|
}
|
|
|
|
func (m *Map) String() string {
|
|
if m == nil {
|
|
return "nil"
|
|
}
|
|
keys := make([]Key, 0, len(m.m))
|
|
for k := range m.m {
|
|
keys = append(keys, k)
|
|
}
|
|
sort.Slice(keys, func(i, j int) bool { return keys[i].Name() < keys[j].Name() })
|
|
|
|
var buffer bytes.Buffer
|
|
buffer.WriteString("{ ")
|
|
for _, k := range keys {
|
|
buffer.WriteString(fmt.Sprintf("{%v %v}", k.name, m.m[k]))
|
|
}
|
|
buffer.WriteString(" }")
|
|
return buffer.String()
|
|
}
|
|
|
|
func (m *Map) insert(k Key, v string) {
|
|
if _, ok := m.m[k]; ok {
|
|
return
|
|
}
|
|
m.m[k] = v
|
|
}
|
|
|
|
func (m *Map) update(k Key, v string) {
|
|
if _, ok := m.m[k]; ok {
|
|
m.m[k] = v
|
|
}
|
|
}
|
|
|
|
func (m *Map) upsert(k Key, v string) {
|
|
m.m[k] = v
|
|
}
|
|
|
|
func (m *Map) delete(k Key) {
|
|
delete(m.m, k)
|
|
}
|
|
|
|
func newMap() *Map {
|
|
return &Map{m: make(map[Key]string)}
|
|
}
|
|
|
|
// Mutator modifies a tag map.
|
|
type Mutator interface {
|
|
Mutate(t *Map) (*Map, error)
|
|
}
|
|
|
|
// Insert returns a mutator that inserts a
|
|
// value associated with k. If k already exists in the tag map,
|
|
// mutator doesn't update the value.
|
|
func Insert(k Key, v string) Mutator {
|
|
return &mutator{
|
|
fn: func(m *Map) (*Map, error) {
|
|
if !checkValue(v) {
|
|
return nil, errInvalidValue
|
|
}
|
|
m.insert(k, v)
|
|
return m, nil
|
|
},
|
|
}
|
|
}
|
|
|
|
// Update returns a mutator that updates the
|
|
// value of the tag associated with k with v. If k doesn't
|
|
// exists in the tag map, the mutator doesn't insert the value.
|
|
func Update(k Key, v string) Mutator {
|
|
return &mutator{
|
|
fn: func(m *Map) (*Map, error) {
|
|
if !checkValue(v) {
|
|
return nil, errInvalidValue
|
|
}
|
|
m.update(k, v)
|
|
return m, nil
|
|
},
|
|
}
|
|
}
|
|
|
|
// Upsert returns a mutator that upserts the
|
|
// value of the tag associated with k with v. It inserts the
|
|
// value if k doesn't exist already. It mutates the value
|
|
// if k already exists.
|
|
func Upsert(k Key, v string) Mutator {
|
|
return &mutator{
|
|
fn: func(m *Map) (*Map, error) {
|
|
if !checkValue(v) {
|
|
return nil, errInvalidValue
|
|
}
|
|
m.upsert(k, v)
|
|
return m, nil
|
|
},
|
|
}
|
|
}
|
|
|
|
// Delete returns a mutator that deletes
|
|
// the value associated with k.
|
|
func Delete(k Key) Mutator {
|
|
return &mutator{
|
|
fn: func(m *Map) (*Map, error) {
|
|
m.delete(k)
|
|
return m, nil
|
|
},
|
|
}
|
|
}
|
|
|
|
// New returns a new context that contains a tag map
|
|
// originated from the incoming context and modified
|
|
// with the provided mutators.
|
|
func New(ctx context.Context, mutator ...Mutator) (context.Context, error) {
|
|
m := newMap()
|
|
orig := FromContext(ctx)
|
|
if orig != nil {
|
|
for k, v := range orig.m {
|
|
if !checkKeyName(k.Name()) {
|
|
return ctx, fmt.Errorf("key:%q: %v", k, errInvalidKeyName)
|
|
}
|
|
if !checkValue(v) {
|
|
return ctx, fmt.Errorf("key:%q value:%q: %v", k.Name(), v, errInvalidValue)
|
|
}
|
|
m.insert(k, v)
|
|
}
|
|
}
|
|
var err error
|
|
for _, mod := range mutator {
|
|
m, err = mod.Mutate(m)
|
|
if err != nil {
|
|
return ctx, err
|
|
}
|
|
}
|
|
return NewContext(ctx, m), nil
|
|
}
|
|
|
|
// Do is similar to pprof.Do: a convenience for installing the tags
|
|
// from the context as Go profiler labels. This allows you to
|
|
// correlated runtime profiling with stats.
|
|
//
|
|
// It converts the key/values from the given map to Go profiler labels
|
|
// and calls pprof.Do.
|
|
//
|
|
// Do is going to do nothing if your Go version is below 1.9.
|
|
func Do(ctx context.Context, f func(ctx context.Context)) {
|
|
do(ctx, f)
|
|
}
|
|
|
|
type mutator struct {
|
|
fn func(t *Map) (*Map, error)
|
|
}
|
|
|
|
func (m *mutator) Mutate(t *Map) (*Map, error) {
|
|
return m.fn(t)
|
|
}
|