| // Licensed to the Apache Software Foundation (ASF) under one or more |
| // contributor license agreements. See the NOTICE file distributed with |
| // this work for additional information regarding copyright ownership. |
| // The ASF licenses this file to You 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 applog contains utilities to work with logging. |
| package applog |
| |
| import ( |
| "fmt" |
| "io" |
| "strings" |
| |
| "github.com/apache/dubbo-kubernetes/pkg/bufman/pkg/zaputil" |
| "go.uber.org/zap" |
| "go.uber.org/zap/zapcore" |
| ) |
| |
| // Container is a container. |
| type Container interface { |
| Logger() *zap.Logger |
| } |
| |
| // NewContainer returns a new Container. |
| func NewContainer(logger *zap.Logger) Container { |
| return newContainer(logger) |
| } |
| |
| // NewLogger returns a new logger.Sugar(). |
| // |
| // The level can be [debug,info,warn,error]. The default is info. |
| // The format can be [text,color,json]. The default is color. |
| func NewLogger(writer io.Writer, levelString string, format string) (*zap.Logger, error) { |
| level, err := getZapLevel(levelString) |
| if err != nil { |
| return nil, err |
| } |
| encoder, err := getZapEncoder(format) |
| if err != nil { |
| return nil, err |
| } |
| return zaputil.NewLogger(writer, level, encoder), nil |
| } |
| |
| func getZapLevel(level string) (zapcore.Level, error) { |
| level = strings.TrimSpace(strings.ToLower(level)) |
| switch level { |
| case "debug": |
| return zapcore.DebugLevel, nil |
| case "info", "": |
| return zapcore.InfoLevel, nil |
| case "warn": |
| return zapcore.WarnLevel, nil |
| case "error": |
| return zapcore.ErrorLevel, nil |
| default: |
| return 0, fmt.Errorf("unknown log level [debug,info,warn,error]: %q", level) |
| } |
| } |
| |
| func getZapEncoder(format string) (zapcore.Encoder, error) { |
| format = strings.TrimSpace(strings.ToLower(format)) |
| switch format { |
| case "text": |
| return zaputil.NewTextEncoder(), nil |
| case "color", "": |
| return zaputil.NewColortextEncoder(), nil |
| case "json": |
| return zaputil.NewJSONEncoder(), nil |
| default: |
| return nil, fmt.Errorf("unknown log format [text,color,json]: %q", format) |
| } |
| } |