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Diffstat (limited to '')
-rw-r--r-- | dependencies/pkg/mod/go.uber.org/zap@v1.23.0/zapcore/console_encoder.go | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/dependencies/pkg/mod/go.uber.org/zap@v1.23.0/zapcore/console_encoder.go b/dependencies/pkg/mod/go.uber.org/zap@v1.23.0/zapcore/console_encoder.go new file mode 100644 index 0000000..1aa5dc3 --- /dev/null +++ b/dependencies/pkg/mod/go.uber.org/zap@v1.23.0/zapcore/console_encoder.go @@ -0,0 +1,157 @@ +// Copyright (c) 2016 Uber Technologies, Inc. +// +// Permission is hereby granted, free of charge, to any person obtaining a copy +// of this software and associated documentation files (the "Software"), to deal +// in the Software without restriction, including without limitation the rights +// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell +// copies of the Software, and to permit persons to whom the Software is +// furnished to do so, subject to the following conditions: +// +// The above copyright notice and this permission notice shall be included in +// all copies or substantial portions of the Software. +// +// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR +// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, +// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE +// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER +// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, +// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN +// THE SOFTWARE. + +package zapcore + +import ( + "fmt" + "sync" + + "go.uber.org/zap/buffer" + "go.uber.org/zap/internal/bufferpool" +) + +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) +} + +type consoleEncoder struct { + *jsonEncoder +} + +// NewConsoleEncoder creates an encoder whose output is designed for human - +// rather than machine - consumption. It serializes the core log entry data +// (message, level, timestamp, etc.) in a plain-text format and leaves the +// structured context as JSON. +// +// Note that although the console encoder doesn't use the keys specified in the +// encoder configuration, it will omit any element whose key is set to the empty +// string. +func NewConsoleEncoder(cfg EncoderConfig) Encoder { + if cfg.ConsoleSeparator == "" { + // Use a default delimiter of '\t' for backwards compatibility + cfg.ConsoleSeparator = "\t" + } + return consoleEncoder{newJSONEncoder(cfg, true)} +} + +func (c consoleEncoder) Clone() Encoder { + return consoleEncoder{c.jsonEncoder.Clone().(*jsonEncoder)} +} + +func (c consoleEncoder) EncodeEntry(ent Entry, fields []Field) (*buffer.Buffer, error) { + line := bufferpool.Get() + + // We don't want the entry's metadata to be quoted and escaped (if it's + // encoded as strings), which means that we can't use the JSON encoder. The + // simplest option is to use the memory encoder and fmt.Fprint. + // + // If this ever becomes a performance bottleneck, we can implement + // ArrayEncoder for our plain-text format. + arr := getSliceEncoder() + if c.TimeKey != "" && c.EncodeTime != nil { + c.EncodeTime(ent.Time, arr) + } + if c.LevelKey != "" && c.EncodeLevel != nil { + c.EncodeLevel(ent.Level, arr) + } + if ent.LoggerName != "" && c.NameKey != "" { + nameEncoder := c.EncodeName + + if nameEncoder == nil { + // Fall back to FullNameEncoder for backward compatibility. + nameEncoder = FullNameEncoder + } + + nameEncoder(ent.LoggerName, arr) + } + if ent.Caller.Defined { + if c.CallerKey != "" && c.EncodeCaller != nil { + c.EncodeCaller(ent.Caller, arr) + } + if c.FunctionKey != "" { + arr.AppendString(ent.Caller.Function) + } + } + for i := range arr.elems { + if i > 0 { + line.AppendString(c.ConsoleSeparator) + } + fmt.Fprint(line, arr.elems[i]) + } + putSliceEncoder(arr) + + // Add the message itself. + if c.MessageKey != "" { + c.addSeparatorIfNecessary(line) + line.AppendString(ent.Message) + } + + // Add any structured context. + c.writeContext(line, fields) + + // If there's no stacktrace key, honor that; this allows users to force + // single-line output. + if ent.Stack != "" && c.StacktraceKey != "" { + line.AppendByte('\n') + line.AppendString(ent.Stack) + } + + line.AppendString(c.LineEnding) + return line, nil +} + +func (c consoleEncoder) writeContext(line *buffer.Buffer, extra []Field) { + context := c.jsonEncoder.Clone().(*jsonEncoder) + defer func() { + // putJSONEncoder assumes the buffer is still used, but we write out the buffer so + // we can free it. + context.buf.Free() + putJSONEncoder(context) + }() + + addFields(context, extra) + context.closeOpenNamespaces() + if context.buf.Len() == 0 { + return + } + + c.addSeparatorIfNecessary(line) + line.AppendByte('{') + line.Write(context.buf.Bytes()) + line.AppendByte('}') +} + +func (c consoleEncoder) addSeparatorIfNecessary(line *buffer.Buffer) { + if line.Len() > 0 { + line.AppendString(c.ConsoleSeparator) + } +} |