110 lines
3.0 KiB
Go
110 lines
3.0 KiB
Go
// Copyright © 2021 The virtual-kubelet authors
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//
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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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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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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 slog implements a virtual-kubelet/log.Logger using slog as a backend
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// You can use this by creating a slog logger and calling `FromSlog(logger)`
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// If you want this to be the default logger for virtual-kubelet, set `log.L` to the value returned by `FromSlog(logger)`
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package slog
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import (
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"context"
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"fmt"
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"log/slog"
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"github.com/virtual-kubelet/virtual-kubelet/log"
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)
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// Ensure log.Logger is fully implemented during compile time.
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var _ log.Logger = (*adapter)(nil)
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// Create a custom logging level for the Fatal level as slog does not
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// have this level by default
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const LevelFatal = slog.Level(12)
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// adapter implements the `log.Logger` interface for slog
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type adapter struct {
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inner *slog.Logger
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}
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// FromSlog creates a new `log.Logger` from a slog logger
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func FromSlog(logger *slog.Logger) log.Logger {
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return &adapter{inner: logger}
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}
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func (l *adapter) Debug(args ...interface{}) {
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msg := args[0].(string)
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l.inner.Debug(msg)
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}
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func (l *adapter) Debugf(format string, args ...interface{}) {
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formattedArgs := fmt.Sprintf(format, args...)
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l.inner.Debug(formattedArgs)
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}
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func (l *adapter) Info(args ...interface{}) {
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msg := args[0].(string)
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l.inner.Info(msg)
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}
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func (l *adapter) Infof(format string, args ...interface{}) {
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formattedArgs := fmt.Sprintf(format, args...)
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l.inner.Info(formattedArgs)
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}
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func (l *adapter) Warn(args ...interface{}) {
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msg := args[0].(string)
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l.inner.Warn(msg)
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}
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func (l *adapter) Warnf(format string, args ...interface{}) {
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formattedArgs := fmt.Sprintf(format, args...)
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l.inner.Warn(formattedArgs)
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}
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func (l *adapter) Error(args ...interface{}) {
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msg := args[0].(string)
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l.inner.Error(msg)
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}
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func (l *adapter) Errorf(format string, args ...interface{}) {
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formattedArgs := fmt.Sprintf(format, args...)
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l.inner.Error(formattedArgs)
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}
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func (l *adapter) Fatal(args ...interface{}) {
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msg := args[0].(string)
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l.inner.Log(context.Background(), LevelFatal, msg)
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}
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func (l *adapter) Fatalf(format string, args ...interface{}) {
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formattedArgs := fmt.Sprintf(format, args...)
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l.inner.Log(context.Background(), LevelFatal, formattedArgs)
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}
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func (l *adapter) WithField(key string, val interface{}) log.Logger {
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return &adapter{inner: l.inner.With(key, val)}
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}
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func (l *adapter) WithFields(f log.Fields) log.Logger {
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logger := l.inner
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for k, v := range f {
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logger = logger.With(k, v)
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}
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return &adapter{inner: logger}
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}
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func (l *adapter) WithError(err error) log.Logger {
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return &adapter{inner: l.inner.With("error", err)}
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}
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