mirror of
https://github.com/ceph/ceph-csi.git
synced 2024-11-30 18:20:19 +00:00
5af3fe5deb
this commits add the controller runtime and its dependency to the vendor. Signed-off-by: Madhu Rajanna <madhupr007@gmail.com>
138 lines
3.6 KiB
Go
138 lines
3.6 KiB
Go
/*
|
|
Copyright 2018 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 log
|
|
|
|
import (
|
|
"sync"
|
|
|
|
"github.com/go-logr/logr"
|
|
)
|
|
|
|
// loggerPromise knows how to populate a concrete logr.Logger
|
|
// with options, given an actual base logger later on down the line.
|
|
type loggerPromise struct {
|
|
logger *DelegatingLogger
|
|
childPromises []*loggerPromise
|
|
promisesLock sync.Mutex
|
|
|
|
name *string
|
|
tags []interface{}
|
|
}
|
|
|
|
// WithName provides a new Logger with the name appended
|
|
func (p *loggerPromise) WithName(l *DelegatingLogger, name string) *loggerPromise {
|
|
res := &loggerPromise{
|
|
logger: l,
|
|
name: &name,
|
|
promisesLock: sync.Mutex{},
|
|
}
|
|
|
|
p.promisesLock.Lock()
|
|
defer p.promisesLock.Unlock()
|
|
p.childPromises = append(p.childPromises, res)
|
|
return res
|
|
}
|
|
|
|
// WithValues provides a new Logger with the tags appended
|
|
func (p *loggerPromise) WithValues(l *DelegatingLogger, tags ...interface{}) *loggerPromise {
|
|
res := &loggerPromise{
|
|
logger: l,
|
|
tags: tags,
|
|
promisesLock: sync.Mutex{},
|
|
}
|
|
|
|
p.promisesLock.Lock()
|
|
defer p.promisesLock.Unlock()
|
|
p.childPromises = append(p.childPromises, res)
|
|
return res
|
|
}
|
|
|
|
// Fulfill instantiates the Logger with the provided logger
|
|
func (p *loggerPromise) Fulfill(parentLogger logr.Logger) {
|
|
var logger = parentLogger
|
|
if p.name != nil {
|
|
logger = logger.WithName(*p.name)
|
|
}
|
|
|
|
if p.tags != nil {
|
|
logger = logger.WithValues(p.tags...)
|
|
}
|
|
|
|
p.logger.Logger = logger
|
|
p.logger.promise = nil
|
|
|
|
for _, childPromise := range p.childPromises {
|
|
childPromise.Fulfill(logger)
|
|
}
|
|
}
|
|
|
|
// DelegatingLogger is a logr.Logger that delegates to another logr.Logger.
|
|
// If the underlying promise is not nil, it registers calls to sub-loggers with
|
|
// the logging factory to be populated later, and returns a new delegating
|
|
// logger. It expects to have *some* logr.Logger set at all times (generally
|
|
// a no-op logger before the promises are fulfilled).
|
|
type DelegatingLogger struct {
|
|
logr.Logger
|
|
promise *loggerPromise
|
|
}
|
|
|
|
// WithName provides a new Logger with the name appended
|
|
func (l *DelegatingLogger) WithName(name string) logr.Logger {
|
|
if l.promise == nil {
|
|
return l.Logger.WithName(name)
|
|
}
|
|
|
|
res := &DelegatingLogger{Logger: l.Logger}
|
|
promise := l.promise.WithName(res, name)
|
|
res.promise = promise
|
|
|
|
return res
|
|
}
|
|
|
|
// WithValues provides a new Logger with the tags appended
|
|
func (l *DelegatingLogger) WithValues(tags ...interface{}) logr.Logger {
|
|
if l.promise == nil {
|
|
return l.Logger.WithValues(tags...)
|
|
}
|
|
|
|
res := &DelegatingLogger{Logger: l.Logger}
|
|
promise := l.promise.WithValues(res, tags...)
|
|
res.promise = promise
|
|
|
|
return res
|
|
}
|
|
|
|
// Fulfill switches the logger over to use the actual logger
|
|
// provided, instead of the temporary initial one, if this method
|
|
// has not been previously called.
|
|
func (l *DelegatingLogger) Fulfill(actual logr.Logger) {
|
|
if l.promise != nil {
|
|
l.promise.Fulfill(actual)
|
|
}
|
|
}
|
|
|
|
// NewDelegatingLogger constructs a new DelegatingLogger which uses
|
|
// the given logger before it's promise is fulfilled.
|
|
func NewDelegatingLogger(initial logr.Logger) *DelegatingLogger {
|
|
l := &DelegatingLogger{
|
|
Logger: initial,
|
|
promise: &loggerPromise{promisesLock: sync.Mutex{}},
|
|
}
|
|
l.promise.logger = l
|
|
return l
|
|
}
|