/
logger.go
205 lines (171 loc) · 5.65 KB
/
logger.go
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package MTGoLogger
import (
"context"
"io/ioutil"
"os"
"strings"
"github.com/pkg/errors"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"gopkg.in/natefinch/lumberjack.v2"
"gopkg.in/yaml.v2"
)
func NewLoggerWithoutConfigFile(lev string, outputPaths []string, appends []string) (*AssetLog, error) {
level, err := getLevel(lev)
if err != nil {
return nil, err
}
zapWriteSyncers := make([]zapcore.WriteSyncer, 0)
for _, fileName := range outputPaths {
zapWriteSyncers = append(zapWriteSyncers, getWriteSyncers(fileName))
}
core := zapcore.NewCore(zapcore.NewJSONEncoder(zap.NewProductionEncoderConfig()),
zap.CombineWriteSyncers(zapWriteSyncers...), level)
logger := zap.New(core)
sugarLogger := logger.Sugar()
lc := &LoggerConfig{
Level: lev,
OutputPaths: outputPaths,
Appends: appends,
}
al := &AssetLog{sugarLogger: sugarLogger, conf: lc}
return al, nil
}
func NewLoggerWithConfigFile(env string, loggerFilePath string) (*AssetLog, error) {
if env == "" {
return nil, errors.New("Env Not set")
}
if env != "prod" && env != "test" {
env = "dev"
}
loggerConfigs := new(LoggerConfigs)
yamlData, err := ioutil.ReadFile(loggerFilePath)
if err != nil {
return nil, err
}
err = yaml.Unmarshal(yamlData, loggerConfigs)
if err != nil {
return nil, err
}
conf := loggerConfigs.Configs[env]
if conf == nil {
return nil, errors.New("Error in logger config file")
}
level, err := getLevel(conf.Level)
if err != nil {
return nil, err
}
zapWriteSyncers := make([]zapcore.WriteSyncer, 0)
for _, fileName := range conf.OutputPaths {
zapWriteSyncers = append(zapWriteSyncers, getWriteSyncers(fileName))
}
core := zapcore.NewCore(zapcore.NewJSONEncoder(zap.NewProductionEncoderConfig()),
zap.CombineWriteSyncers(zapWriteSyncers...), level)
logger := zap.New(core)
sugarLogger := logger.Sugar()
return &AssetLog{sugarLogger: sugarLogger, conf: conf}, nil
}
func getWriteSyncers(fileName string) zapcore.WriteSyncer {
if strings.Compare(fileName, "stdout") == 0 {
return zapcore.AddSync(os.Stdout)
}
if strings.Compare(fileName, "stderr") == 0 {
return zapcore.AddSync(os.Stderr)
}
return zapcore.AddSync(&lumberjack.Logger{
Filename: fileName,
MaxSize: 50, // megabytes
MaxBackups: 1,
MaxAge: 1, // days
})
}
func getLevel(level string) (zapcore.Level, error) {
level = strings.ToUpper(level)
switch level {
case "DEBUG":
return zap.DebugLevel, nil
case "INFO":
return zap.InfoLevel, nil
case "WARN":
return zap.WarnLevel, nil
case "ERROR":
return zap.ErrorLevel, nil
case "FATAL":
return zap.FatalLevel, nil
default:
return zapcore.PanicLevel, errors.New("unsupported level")
}
}
func getAppendMapFromContext(ctx context.Context, appends []string) map[string]string {
if ctx == nil {
return nil
}
appendMap := make(map[string]string)
for _, append := range appends {
var finalVal string
ctxVal := ctx.Value(append)
if ctxVal == nil {
finalVal = ""
} else {
finalVal = ctxVal.(string)
}
appendMap[append] = finalVal
}
return appendMap
}
func getAppendedLogger(logger *zap.SugaredLogger, appendMap map[string]string) *zap.SugaredLogger {
for k, v := range appendMap {
logger = logger.With(k, v)
}
return logger
}
func (logger AssetLog) Debug(ctx context.Context, args ...interface{}) {
appendMap := getAppendMapFromContext(ctx, logger.conf.Appends)
appendedLogger := getAppendedLogger(logger.sugarLogger, appendMap)
appendedLogger.Debug(args...)
}
func (logger AssetLog) Debugf(ctx context.Context, format string, args ...interface{}) {
appendMap := getAppendMapFromContext(ctx, logger.conf.Appends)
appendedLogger := getAppendedLogger(logger.sugarLogger, appendMap)
appendedLogger.Debugf(format, args...)
}
func (logger AssetLog) Info(ctx context.Context, args ...interface{}) {
appendMap := getAppendMapFromContext(ctx, logger.conf.Appends)
appendedLogger := getAppendedLogger(logger.sugarLogger, appendMap)
appendedLogger.Info(args...)
}
func (logger AssetLog) Infof(ctx context.Context, format string, args ...interface{}) {
appendMap := getAppendMapFromContext(ctx, logger.conf.Appends)
appendedLogger := getAppendedLogger(logger.sugarLogger, appendMap)
appendedLogger.Infof(format, args...)
}
func (logger AssetLog) Fatal(ctx context.Context, args ...interface{}) {
appendMap := getAppendMapFromContext(ctx, logger.conf.Appends)
appendedLogger := getAppendedLogger(logger.sugarLogger, appendMap)
appendedLogger.Fatal(args...)
}
func (logger AssetLog) Fatalf(ctx context.Context, format string, args ...interface{}) {
appendMap := getAppendMapFromContext(ctx, logger.conf.Appends)
appendedLogger := getAppendedLogger(logger.sugarLogger, appendMap)
appendedLogger.Fatalf(format, args...)
}
func (logger AssetLog) Warn(ctx context.Context, args ...interface{}) {
appendMap := getAppendMapFromContext(ctx, logger.conf.Appends)
appendedLogger := getAppendedLogger(logger.sugarLogger, appendMap)
appendedLogger.Warn(args...)
}
func (logger AssetLog) Warningf(ctx context.Context, format string, args ...interface{}) {
appendMap := getAppendMapFromContext(ctx, logger.conf.Appends)
appendedLogger := getAppendedLogger(logger.sugarLogger, appendMap)
appendedLogger.Warnf(format, args...)
}
func (logger AssetLog) Error(ctx context.Context, args ...interface{}) {
appendMap := getAppendMapFromContext(ctx, logger.conf.Appends)
appendedLogger := getAppendedLogger(logger.sugarLogger, appendMap)
appendedLogger.Error(args...)
}
func (logger AssetLog) Errorf(ctx context.Context, format string, args ...interface{}) {
appendMap := getAppendMapFromContext(ctx, logger.conf.Appends)
appendedLogger := getAppendedLogger(logger.sugarLogger, appendMap)
appendedLogger.Errorf(format, args...)
}