/
file_writer_builder.go
91 lines (79 loc) · 2.41 KB
/
file_writer_builder.go
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package elog
import (
"io"
"os"
"time"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"github.com/gotomicro/ego/core/econf"
"github.com/gotomicro/logrotate"
)
type rotateWriterBuilder struct{}
type rotateWriter struct {
zapcore.Core
io.Closer
}
var _ WriterBuilder = &rotateWriterBuilder{}
// config ...
type config struct {
MaxSize int // [fileWriter]日志输出文件最大长度,超过改值则截断,默认500M
MaxAge int // [fileWriter]日志存储最大时间,默认最大保存天数为7天
MaxBackup int // [fileWriter]日志存储最大数量,默认最大保存文件个数为10个
RotateInterval time.Duration // [fileWriter]日志轮转时间,默认0,不做时间轮转,影响性能
FlushBufferSize int // 缓冲大小,默认256 * 1024B
FlushBufferInterval time.Duration // 缓冲时间,默认5秒
}
func defaultRotateConfig() *config {
return &config{
MaxSize: 500, // 500M
MaxAge: 7, // 7 day
MaxBackup: 10, // 10 backup
RotateInterval: 0,
FlushBufferSize: 256 * 1024,
FlushBufferInterval: 5 * time.Second,
}
}
const (
writerRotateLogger = "file"
)
func (*rotateWriterBuilder) Scheme() string {
return writerRotateLogger
}
// Build constructs a zapcore.Core with stderr syncer
func (r *rotateWriterBuilder) Build(key string, commonConfig *Config) Writer {
c := defaultRotateConfig()
if err := econf.UnmarshalKey(key, &c); err != nil {
panic(err)
}
// NewRotateFileCore constructs a zapcore.Core with rotate file syncer
// Debug output to console and file by default
cf := noopCloseFunc
var ws = zapcore.AddSync(&logrotate.Logger{
Filename: commonConfig.Filename(),
MaxSize: c.MaxSize,
MaxAge: c.MaxAge,
MaxBackups: c.MaxBackup,
LocalTime: true,
Compress: false,
RotateInterval: c.RotateInterval,
})
if commonConfig.Debug {
ws = zap.CombineWriteSyncers(os.Stdout, ws)
}
if commonConfig.EnableAsync {
ws, cf = bufferWriteSyncer(ws, c.FlushBufferSize, c.FlushBufferInterval)
}
w := &rotateWriter{}
w.Closer = CloseFunc(cf)
w.Core = zapcore.NewCore(
func() zapcore.Encoder {
if commonConfig.Debug {
return zapcore.NewConsoleEncoder(*commonConfig.EncoderConfig())
}
return zapcore.NewJSONEncoder(*commonConfig.EncoderConfig())
}(),
ws,
commonConfig.AtomicLevel(),
)
return w
}