/
koinos_encoder.go
209 lines (175 loc) · 6.19 KB
/
koinos_encoder.go
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package log
import (
"fmt"
"sync"
"time"
"go.uber.org/zap/buffer"
"go.uber.org/zap/zapcore"
)
var (
_pool = buffer.NewPool()
// GetPool retrieves a buffer from the pool, creating one if necessary.
GetPool = _pool.Get
)
// ----------------------------------------------------------------------------
// sliceArrayEncoder clone
// ----------------------------------------------------------------------------
// sliceArrayEncoder is an ArrayEncoder backed by a simple []interface{}. Like
// the MapObjectEncoder, it's not designed for production use.
type sliceArrayEncoder struct {
elems []interface{}
}
func (s *sliceArrayEncoder) AppendArray(v zapcore.ArrayMarshaler) error {
enc := &sliceArrayEncoder{}
err := v.MarshalLogArray(enc)
s.elems = append(s.elems, enc.elems)
return err
}
func (s *sliceArrayEncoder) AppendObject(v zapcore.ObjectMarshaler) error {
m := zapcore.NewMapObjectEncoder()
err := v.MarshalLogObject(m)
s.elems = append(s.elems, m.Fields)
return err
}
func (s *sliceArrayEncoder) AppendReflected(v interface{}) error {
s.elems = append(s.elems, v)
return nil
}
func (s *sliceArrayEncoder) AppendBool(v bool) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendByteString(v []byte) { s.elems = append(s.elems, string(v)) }
func (s *sliceArrayEncoder) AppendComplex128(v complex128) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendComplex64(v complex64) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendDuration(v time.Duration) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendFloat64(v float64) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendFloat32(v float32) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendInt(v int) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendInt64(v int64) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendInt32(v int32) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendInt16(v int16) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendInt8(v int8) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendString(v string) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendTime(v time.Time) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendUint(v uint) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendUint64(v uint64) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendUint32(v uint32) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendUint16(v uint16) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendUint8(v uint8) { s.elems = append(s.elems, v) }
func (s *sliceArrayEncoder) AppendUintptr(v uintptr) { s.elems = append(s.elems, v) }
var _sliceEncoderPool = sync.Pool{
New: func() interface{} {
return &sliceArrayEncoder{elems: make([]interface{}, 0, 2)}
},
}
func getSliceEncoder() *sliceArrayEncoder {
return _sliceEncoderPool.Get().(*sliceArrayEncoder)
}
func putSliceEncoder(e *sliceArrayEncoder) {
e.elems = e.elems[:0]
_sliceEncoderPool.Put(e)
}
// KoinosEncoder implements custon koinos log formatting
type KoinosEncoder struct {
*zapcore.MapObjectEncoder
*zapcore.EncoderConfig
ConsoleSeparator string
AppID string
}
// NewKoinosEncoder creates and returns a new instance of KoinosEncoder
func NewKoinosEncoder(cfg zapcore.EncoderConfig, appID string) zapcore.Encoder {
return &KoinosEncoder{EncoderConfig: &cfg, ConsoleSeparator: "", AppID: appID}
}
// Clone clones KoinosEncoder
func (ke *KoinosEncoder) Clone() zapcore.Encoder {
return &KoinosEncoder{}
}
// EncodeEntry encodes the given entry data
func (ke *KoinosEncoder) EncodeEntry(ent zapcore.Entry, fields []zapcore.Field) (*buffer.Buffer, error) {
line := GetPool()
arr := getSliceEncoder()
if ke.TimeKey != "" && ke.EncodeTime != nil {
ke.EncodeTime(ent.Time, arr)
arr.AppendString(" ")
}
arr.AppendString("(")
arr.AppendString(ke.AppID)
arr.AppendString(")")
arr.AppendString(" [")
if ent.Caller.Defined {
if ke.CallerKey != "" && ke.EncodeCaller != nil {
ke.EncodeCaller(ent.Caller, arr)
}
}
arr.AppendString("] <")
if ke.LevelKey != "" && ke.EncodeLevel != nil {
ke.EncodeLevel(ent.Level, arr)
}
arr.AppendString(">: ")
for i := range arr.elems {
if i > 0 {
line.AppendString(ke.ConsoleSeparator)
}
fmt.Fprint(line, arr.elems[i])
}
putSliceEncoder(arr)
if ke.MessageKey != "" {
line.AppendString(ent.Message)
}
if ke.LineEnding != "" {
line.AppendString(ke.LineEnding)
} else {
line.AppendString("\n")
}
return line, nil
}
const (
red color = iota + 31
green
yellow
blue
)
type color uint8
var (
_levelToColor = map[zapcore.Level]color{
zapcore.DebugLevel: blue,
zapcore.InfoLevel: green,
zapcore.WarnLevel: yellow,
zapcore.ErrorLevel: red,
zapcore.DPanicLevel: red,
zapcore.PanicLevel: red,
zapcore.FatalLevel: red,
}
_unknownLevelColor = red
_koinosColorString = make(map[zapcore.Level]string, len(_levelToColor))
)
func (c color) AddColor(s string) string {
return fmt.Sprintf("\x1b[%dm%s\x1b[0m", uint8(c), s)
}
func init() {
for level, color := range _levelToColor {
if level == zapcore.WarnLevel {
_koinosColorString[level] = color.AddColor("warning")
} else {
_koinosColorString[level] = color.AddColor(level.String())
}
}
}
// KoinosLevelEncoder implements the Koinos log level encoding standard
func KoinosLevelEncoder(l zapcore.Level, enc zapcore.PrimitiveArrayEncoder) {
if l == zapcore.WarnLevel {
enc.AppendString("warning")
} else {
enc.AppendString(l.String())
}
}
// KoinosColorLevelEncoder implements the Koinos log level color encoding standard
func KoinosColorLevelEncoder(l zapcore.Level, enc zapcore.PrimitiveArrayEncoder) {
s, ok := _koinosColorString[l]
if !ok {
s = _unknownLevelColor.AddColor(l.String())
}
enc.AppendString(s)
}
// KoinosTimeEncoder encodes timestamps in the Koinos human-readable log standard
func KoinosTimeEncoder(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
enc.AppendString(t.Format("2006-01-02 15:04:05.000000"))
}