64 lines
2.1 KiB
Go
64 lines
2.1 KiB
Go
|
// Copyright The OpenTelemetry 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 global // import "go.opentelemetry.io/otel/internal/global"
|
||
|
|
|
||
|
|
import (
|
||
|
|
"log"
|
||
|
|
"os"
|
||
|
|
"sync/atomic"
|
||
|
|
"unsafe"
|
||
|
|
|
||
|
|
"github.com/go-logr/logr"
|
||
|
|
"github.com/go-logr/stdr"
|
||
|
|
)
|
||
|
|
|
||
|
|
// globalLogger is the logging interface used within the otel api and sdk provide deatails of the internals.
|
||
|
|
//
|
||
|
|
// The default logger uses stdr which is backed by the standard `log.Logger`
|
||
|
|
// interface. This logger will only show messages at the Error Level.
|
||
|
|
var globalLogger unsafe.Pointer
|
||
|
|
|
||
|
|
func init() {
|
||
|
|
SetLogger(stdr.New(log.New(os.Stderr, "", log.LstdFlags|log.Lshortfile)))
|
||
|
|
}
|
||
|
|
|
||
|
|
// SetLogger overrides the globalLogger with l.
|
||
|
|
//
|
||
|
|
// To see Info messages use a logger with `l.V(1).Enabled() == true`
|
||
|
|
// To see Debug messages use a logger with `l.V(5).Enabled() == true`.
|
||
|
|
func SetLogger(l logr.Logger) {
|
||
|
|
atomic.StorePointer(&globalLogger, unsafe.Pointer(&l))
|
||
|
|
}
|
||
|
|
|
||
|
|
func getLogger() logr.Logger {
|
||
|
|
return *(*logr.Logger)(atomic.LoadPointer(&globalLogger))
|
||
|
|
}
|
||
|
|
|
||
|
|
// Info prints messages about the general state of the API or SDK.
|
||
|
|
// This should usually be less then 5 messages a minute.
|
||
|
|
func Info(msg string, keysAndValues ...interface{}) {
|
||
|
|
getLogger().V(1).Info(msg, keysAndValues...)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Error prints messages about exceptional states of the API or SDK.
|
||
|
|
func Error(err error, msg string, keysAndValues ...interface{}) {
|
||
|
|
getLogger().Error(err, msg, keysAndValues...)
|
||
|
|
}
|
||
|
|
|
||
|
|
// Debug prints messages about all internal changes in the API or SDK.
|
||
|
|
func Debug(msg string, keysAndValues ...interface{}) {
|
||
|
|
getLogger().V(5).Info(msg, keysAndValues...)
|
||
|
|
}
|