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logger.go
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logger.go
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package logger
import (
"io"
"os"
"sync"
"github.com/gopi-frame/contract/event"
"github.com/gopi-frame/contract/logger"
events "github.com/gopi-frame/logger/event"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
var _ logger.Logger = (*Logger)(nil)
// NewLogger new logger
func NewLogger(options ...Option) *Logger {
logger := new(Logger)
for _, option := range options {
option(logger)
}
return logger
}
// Logger logger
type Logger struct {
once sync.Once
driver *zap.Logger
dispatcher event.Dispatcher
formatter logger.Formatter
hooks []logger.Hook
outputs []io.Writer
zapOptions []zap.Option
}
func (l *Logger) lazyInit() {
l.once.Do(func() {
var encoder zapcore.Encoder
if l.formatter == nil {
encoder = zapcore.NewJSONEncoder(zapcore.EncoderConfig{
MessageKey: "message",
LevelKey: "level",
TimeKey: "timestamp",
NameKey: "name",
CallerKey: "function",
StacktraceKey: "stacktrace",
})
} else {
encoder = newEncoder(l.formatter)
}
var writer zapcore.WriteSyncer
if len(l.outputs) == 0 {
writer = zapcore.AddSync(os.Stdout)
} else {
writers := []zapcore.WriteSyncer{}
for _, output := range l.outputs {
writers = append(writers, zapcore.AddSync(output))
}
writer = zapcore.NewMultiWriteSyncer(writers...)
}
core := zapcore.NewCore(encoder, writer, zapcore.DebugLevel)
if len(l.hooks) > 0 {
for _, hook := range l.hooks {
core = zapcore.RegisterHooks(core, func(e zapcore.Entry) error {
if hook.Enable(e.Level.String()) {
return hook.Handle(&entry{Entry: e})
}
return nil
})
}
}
driver := zap.New(core, l.zapOptions...)
l.driver = driver
})
}
// Dispatcher set event dispatcher
func (l *Logger) Dispatcher(d event.Dispatcher) {
l.dispatcher = d
}
// Formatter set formatter
func (l *Logger) Formatter(formatter logger.Formatter) {
l.formatter = formatter
}
// Hooks set hook
func (l *Logger) Hooks(hooks ...logger.Hook) {
l.hooks = hooks
}
// Outputs set outputs
func (l *Logger) Outputs(outputs ...io.Writer) {
l.outputs = outputs
}
// Debug debug
func (l *Logger) Debug(message string, fields map[string]any) {
l.lazyInit()
values := []zap.Field{zap.Namespace("context")}
for key, value := range fields {
values = append(values, zap.Any(key, value))
}
l.driver.Debug(message, values...)
l.dispatchEvent(zap.DebugLevel.String(), message, fields)
}
// Info info
func (l *Logger) Info(message string, fields map[string]any) {
l.lazyInit()
values := []zap.Field{zap.Namespace("context")}
for key, value := range fields {
values = append(values, zap.Any(key, value))
}
l.driver.Info(message, values...)
l.dispatchEvent(zap.InfoLevel.String(), message, fields)
}
// Warn warn
func (l *Logger) Warn(message string, fields map[string]any) {
l.lazyInit()
values := []zap.Field{zap.Namespace("context")}
for key, value := range fields {
values = append(values, zap.Any(key, value))
}
l.driver.Warn(message, values...)
l.dispatchEvent(zap.WarnLevel.String(), message, fields)
}
// Error error
func (l *Logger) Error(message string, fields map[string]any) {
l.lazyInit()
values := []zap.Field{zap.Namespace("context")}
for key, value := range fields {
values = append(values, zap.Any(key, value))
}
l.driver.Error(message, values...)
l.dispatchEvent(zap.ErrorLevel.String(), message, fields)
}
// Fatal fatal
func (l *Logger) Fatal(message string, fields map[string]any) {
l.lazyInit()
values := []zap.Field{zap.Namespace("context")}
for key, value := range fields {
values = append(values, zap.Any(key, value))
}
l.driver.Fatal(message, values...)
l.dispatchEvent(zap.ErrorLevel.String(), message, fields)
}
// Panic panic
func (l *Logger) Panic(message string, fields map[string]any) {
l.lazyInit()
values := []zap.Field{zap.Namespace("context")}
for key, value := range fields {
values = append(values, zap.Any(key, value))
}
l.driver.Panic(message, values...)
l.dispatchEvent(zap.PanicLevel.String(), message, fields)
}
func (l *Logger) dispatchEvent(level string, message string, fields map[string]any) {
if l.dispatcher != nil {
l.dispatcher.Dispatch(events.NewMessageLogged(level, message, fields))
}
}