103 lines
3.1 KiB
Go
103 lines
3.1 KiB
Go
// +-------------------------------------------------------------------------
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// | Copyright (C) 2016 Yunify, Inc.
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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 work except in compliance with the License.
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// | You may obtain a copy of the License in the LICENSE file, or 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 logger provides support for logging to stdout and stderr.
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package logger
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import (
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"context"
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"fmt"
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"github.com/pengsrc/go-shared/log"
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)
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// Logger is the interface of SDK logger.
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type Logger interface {
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Debugf(ctx context.Context, format string, v ...interface{})
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Infof(ctx context.Context, format string, v ...interface{})
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Warnf(ctx context.Context, format string, v ...interface{})
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Errorf(ctx context.Context, format string, v ...interface{})
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Fatalf(ctx context.Context, format string, v ...interface{})
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Panicf(ctx context.Context, format string, v ...interface{})
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}
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// CheckLevel checks whether the log level is valid.
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func CheckLevel(level string) error {
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if _, err := log.ParseLevel(level); err != nil {
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return fmt.Errorf(`log level not valid: "%s"`, level)
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}
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return nil
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}
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// GetLevel get the log level string.
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func GetLevel() string {
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if l, ok := instance.(*log.Logger); ok {
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return l.GetLevel()
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}
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return "UNKNOWN"
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}
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// SetLevel sets the log level.
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// Valid levels are "debug", "info", "warn", "error", and "fatal".
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func SetLevel(level string) {
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if l, ok := instance.(*log.Logger); ok {
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err := l.SetLevel(level)
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if err != nil {
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Fatalf(nil, fmt.Sprintf(`log level not valid: "%s"`, level))
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}
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}
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}
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// SetLogger sets the a logger as SDK logger.
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func SetLogger(l Logger) {
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instance = l
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}
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// Debugf logs a message with severity DEBUG.
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func Debugf(ctx context.Context, format string, v ...interface{}) {
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instance.Debugf(ctx, format, v...)
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}
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// Infof logs a message with severity INFO.
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func Infof(ctx context.Context, format string, v ...interface{}) {
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instance.Infof(ctx, format, v...)
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}
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// Warnf logs a message with severity WARN.
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func Warnf(ctx context.Context, format string, v ...interface{}) {
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instance.Warnf(ctx, format, v...)
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}
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// Errorf logs a message with severity ERROR.
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func Errorf(ctx context.Context, format string, v ...interface{}) {
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instance.Errorf(ctx, format, v...)
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}
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// Fatalf logs a message with severity ERROR followed by a call to os.Exit().
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func Fatalf(ctx context.Context, format string, v ...interface{}) {
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instance.Fatalf(ctx, format, v...)
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}
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var instance Logger
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func init() {
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l, err := log.NewTerminalLogger(log.WarnLevel.String())
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if err != nil {
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panic(fmt.Sprintf("failed to initialize QingStor SDK logger: %v", err))
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}
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instance = l
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}
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