micro-account/pkg/common/log/log.go

/*
 * 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 log

import (
	"fmt"
	"github.com/natefinch/lumberjack"

	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
)

var zapFakeLog *ZapLoggerFake

type DuInfo struct {
	Config *Config `yaml:"logger"`
}

type Config struct {
	LumberjackConfig *lumberjack.Logger `yaml:"lumberjack-config"`
	ZapConfig        *zap.Config        `yaml:"zap-config"`
	CallerSkip       int
}

type ZapLoggerFake struct {
	logger *zap.Logger
}

// InitLogger use for init logger by @conf
func InitLogger(conf *Config) {
	var (
		_      *zap.Logger
		config = &Config{}
	)
	if conf == nil || conf.ZapConfig == nil {
		zapLoggerEncoderConfig := zapcore.EncoderConfig{
			TimeKey:        "time",
			LevelKey:       "level",
			NameKey:        "logger",
			CallerKey:      "caller",
			MessageKey:     "message",
			StacktraceKey:  "stacktrace",
			EncodeLevel:    zapcore.CapitalColorLevelEncoder,
			EncodeTime:     zapcore.ISO8601TimeEncoder,
			EncodeDuration: zapcore.SecondsDurationEncoder,
			EncodeCaller:   zapcore.ShortCallerEncoder,
		}
		config.ZapConfig = &zap.Config{
			Level:            zap.NewAtomicLevelAt(zap.InfoLevel),
			Development:      false,
			Encoding:         "console",
			EncoderConfig:    zapLoggerEncoderConfig,
			OutputPaths:      []string{"stderr"},
			ErrorOutputPaths: []string{"stderr"},
		}
	} else {
		config.ZapConfig = conf.ZapConfig
	}

	if conf != nil {
		config.CallerSkip = conf.CallerSkip
	}

	if config.CallerSkip == 0 { //因为包装了两层，所以设置3次
		config.CallerSkip = 3
	}

	var zapLogger *zap.Logger
	if conf == nil || conf.LumberjackConfig == nil {
		zapLogger, _ = config.ZapConfig.Build(zap.AddCaller(), zap.AddCallerSkip(config.CallerSkip))
	} else {
		config.LumberjackConfig = conf.LumberjackConfig
		zapLogger = initZapLoggerWithSyncer(config)
	}

	zapFakeLog = &ZapLoggerFake{logger: zapLogger}

	return
}

func GetFakeLogger() *ZapLoggerFake {
	return zapFakeLog
}

func GetZapLog() *zap.Logger {
	return zapFakeLog.logger
}

// initZapLoggerWithSyncer init zap Logger with syncer
func initZapLoggerWithSyncer(conf *Config) *zap.Logger {

	var fields []zapcore.Field

	if len(conf.ZapConfig.InitialFields) > 0 {
		for key, value := range conf.ZapConfig.InitialFields {
			fields = append(fields, zap.Any(key, value))
		}
	}
	fmt.Println("配置lumber", conf.LumberjackConfig)

	core := zapcore.NewCore(
		conf.getEncoder(),
		conf.getLogWriter(),
		zap.NewAtomicLevelAt(conf.ZapConfig.Level.Level()),
	)
	if len(fields) >= 1 {
		core = core.With(fields)
	}

	return zap.New(core, zap.AddCaller(), zap.AddCallerSkip(conf.CallerSkip))
}

// getEncoder get encoder by config, zapcore support json and console encoder
func (c *Config) getEncoder() zapcore.Encoder {
	if c.ZapConfig.Encoding == "json" {
		return zapcore.NewJSONEncoder(c.ZapConfig.EncoderConfig)
	} else if c.ZapConfig.Encoding == "console" {
		return zapcore.NewConsoleEncoder(c.ZapConfig.EncoderConfig)
	}
	return nil
}

// getLogWriter get Lumberjack writer by LumberjackConfig
func (c *Config) getLogWriter() zapcore.WriteSyncer {
	return zapcore.AddSync(c.LumberjackConfig)
}