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encoding.go
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encoding.go
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// Licensed to Elasticsearch B.V. under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. Elasticsearch B.V. licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
package logp
import (
"go.uber.org/zap/zapcore"
"go.elastic.co/ecszap"
)
var baseEncodingConfig = zapcore.EncoderConfig{
TimeKey: "timestamp",
LevelKey: "level",
NameKey: "logger",
CallerKey: "caller",
MessageKey: "message",
StacktraceKey: "stacktrace",
LineEnding: zapcore.DefaultLineEnding,
EncodeLevel: zapcore.LowercaseLevelEncoder,
EncodeTime: zapcore.ISO8601TimeEncoder,
EncodeDuration: zapcore.NanosDurationEncoder,
EncodeCaller: zapcore.ShortCallerEncoder,
EncodeName: zapcore.FullNameEncoder,
}
type encoderCreator func(cfg zapcore.EncoderConfig) zapcore.Encoder
func buildEncoder(cfg Config) zapcore.Encoder {
var encCfg zapcore.EncoderConfig
var encCreator encoderCreator
if cfg.ToSyslog {
encCfg = SyslogEncoderConfig()
encCreator = zapcore.NewConsoleEncoder
} else {
encCfg = JSONEncoderConfig()
encCreator = zapcore.NewJSONEncoder
}
encCfg = ecszap.ECSCompatibleEncoderConfig(encCfg)
return encCreator(encCfg)
}
func JSONEncoderConfig() zapcore.EncoderConfig {
return baseEncodingConfig
}
func ConsoleEncoderConfig() zapcore.EncoderConfig {
c := baseEncodingConfig
c.EncodeLevel = zapcore.CapitalLevelEncoder
c.EncodeName = bracketedNameEncoder
return c
}
func SyslogEncoderConfig() zapcore.EncoderConfig {
c := ConsoleEncoderConfig()
// Time is generally added by syslog.
// But when logging with ECS the empty TimeKey will be
// ignored and @timestamp is still added to log line
c.TimeKey = ""
return c
}
func bracketedNameEncoder(loggerName string, enc zapcore.PrimitiveArrayEncoder) {
enc.AppendString("[" + loggerName + "]")
}