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80 lines
2.8 KiB
80 lines
2.8 KiB
// Copyright (c) 2016 Uber Technologies, Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in
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// all copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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// THE SOFTWARE.
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package zap
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import (
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"errors"
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"fmt"
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"sync"
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"go.uber.org/zap/zapcore"
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)
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var (
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errNoEncoderNameSpecified = errors.New("no encoder name specified")
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_encoderNameToConstructor = map[string]func(zapcore.EncoderConfig) (zapcore.Encoder, error){
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"console": func(encoderConfig zapcore.EncoderConfig) (zapcore.Encoder, error) {
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return zapcore.NewConsoleEncoder(encoderConfig), nil
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},
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"json": func(encoderConfig zapcore.EncoderConfig) (zapcore.Encoder, error) {
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return zapcore.NewJSONEncoder(encoderConfig), nil
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},
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}
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_encoderMutex sync.RWMutex
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)
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// RegisterEncoder registers an encoder constructor, which the Config struct
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// can then reference. By default, the "json" and "console" encoders are
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// registered.
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//
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// Attempting to register an encoder whose name is already taken returns an
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// error.
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func RegisterEncoder(name string, constructor func(zapcore.EncoderConfig) (zapcore.Encoder, error)) error {
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_encoderMutex.Lock()
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defer _encoderMutex.Unlock()
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if name == "" {
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return errNoEncoderNameSpecified
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}
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if _, ok := _encoderNameToConstructor[name]; ok {
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return fmt.Errorf("encoder already registered for name %q", name)
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}
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_encoderNameToConstructor[name] = constructor
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return nil
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}
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func newEncoder(name string, encoderConfig zapcore.EncoderConfig) (zapcore.Encoder, error) {
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if encoderConfig.TimeKey != "" && encoderConfig.EncodeTime == nil {
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return nil, fmt.Errorf("missing EncodeTime in EncoderConfig")
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}
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_encoderMutex.RLock()
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defer _encoderMutex.RUnlock()
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if name == "" {
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return nil, errNoEncoderNameSpecified
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}
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constructor, ok := _encoderNameToConstructor[name]
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if !ok {
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return nil, fmt.Errorf("no encoder registered for name %q", name)
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}
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return constructor(encoderConfig)
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}
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