logger

Documentation

Index

• Constants
• func ColoredHashedNameEncoder(s string, enc zapcore.PrimitiveArrayEncoder)
• func ColoredLevelEncoder(level zapcore.Level, enc zapcore.PrimitiveArrayEncoder)
• func ColoredNameEncoder(s string, enc zapcore.PrimitiveArrayEncoder)
• func UTCTimeEncoder(t time.Time, enc zapcore.PrimitiveArrayEncoder)
• type ChannelConfig
• type Config
  • func (cfg *Config) BuildLogger() (*zap.Logger, error)
  • func (cfg *Config) InitDefault()
• type FileLoggerConfig
  • func (fl *FileLoggerConfig) InitDefaults() *FileLoggerConfig
• type Logger
• type Mode
• type StdLogAdapter
  • func NewStdAdapter(log Logger) *StdLogAdapter
  • func (s *StdLogAdapter) Write(p []byte) (n int, err error)
• type WithLogger
• type ZapAdapter
  • func NewZapAdapter(zapLogger *zap.Logger) *ZapAdapter
  • func (log *ZapAdapter) Debug(msg string, keyvals ...interface{})
  • func (log *ZapAdapter) Error(msg string, keyvals ...interface{})
  • func (log *ZapAdapter) Info(msg string, keyvals ...interface{})
  • func (log *ZapAdapter) Warn(msg string, keyvals ...interface{})
  • func (log *ZapAdapter) With(keyvals ...interface{}) Logger
• type ZapLogger
  • func (z *ZapLogger) Available()
  • func (z *ZapLogger) Init(cfg config.Configurer) error
  • func (z *ZapLogger) Name() string
  • func (z *ZapLogger) NamedLogger(name string) (Logger, error)
  • func (z *ZapLogger) Provides() []interface{}
  • func (z *ZapLogger) ServiceLogger(n endure.Named) (Logger, error)

Constants

const PluginName = "logs"

PluginName declares plugin name.

Functions

func ColoredHashedNameEncoder

func ColoredHashedNameEncoder(s string, enc zapcore.PrimitiveArrayEncoder)

ColoredHashedNameEncoder colorizes service names and assigns different colors to different names.

func ColoredLevelEncoder

func ColoredLevelEncoder(level zapcore.Level, enc zapcore.PrimitiveArrayEncoder)

ColoredLevelEncoder colorizes log levels.

func ColoredNameEncoder

func ColoredNameEncoder(s string, enc zapcore.PrimitiveArrayEncoder)

ColoredNameEncoder colorizes service names.

func UTCTimeEncoder

func UTCTimeEncoder(t time.Time, enc zapcore.PrimitiveArrayEncoder)

UTCTimeEncoder encodes time into short UTC specific timestamp.

Types

type ChannelConfig

type ChannelConfig struct {
	// Dedicated channels per logger. By default logger allocated via named logger.
	Channels map[string]Config `mapstructure:"channels"`
}

ChannelConfig configures loggers per channel.

type Config

type Config struct {
	// Mode configures logger based on some default template (development, production, off).
	Mode Mode `mapstructure:"mode"`

	// Level is the minimum enabled logging level. Note that this is a dynamic
	// level, so calling ChannelConfig.Level.SetLevel will atomically change the log
	// level of all loggers descended from this config.
	Level string `mapstructure:"level"`

	// Logger line ending. Default: "\n" for the all modes except production
	LineEnding string `mapstructure:"line_ending"`

	// Encoding sets the logger's encoding. InitDefault values are "json" and
	// "console", as well as any third-party encodings registered via
	// RegisterEncoder.
	Encoding string `mapstructure:"encoding"`

	// Output is a list of URLs or file paths to write logging output to.
	// See Open for details.
	Output []string `mapstructure:"output"`

	// ErrorOutput is a list of URLs to write internal logger errors to.
	// The default is standard error.
	//
	// Note that this setting only affects internal errors; for sample code that
	// sends error-level logs to a different location from info- and debug-level
	// logs, see the package-level AdvancedConfiguration example.
	ErrorOutput []string `mapstructure:"errorOutput"`

	// File logger options
	FileLogger *FileLoggerConfig `mapstructure:"file_logger_options"`
}

func (*Config) BuildLogger

func (cfg *Config) BuildLogger() (*zap.Logger, error)

BuildLogger converts config into Zap configuration.

func (*Config) InitDefault

func (cfg *Config) InitDefault()

InitDefault Initialize default logger

type FileLoggerConfig

type FileLoggerConfig struct {
	// Filename is the file to write logs to.  Backup log files will be retained
	// in the same directory.  It uses <processname>-lumberjack.log in
	// os.TempDir() if empty.
	LogOutput string `mapstructure:"log_output"`

	// MaxSize is the maximum size in megabytes of the log file before it gets
	// rotated. It defaults to 100 megabytes.
	MaxSize int `mapstructure:"max_size"`

	// MaxAge is the maximum number of days to retain old log files based on the
	// timestamp encoded in their filename.  Note that a day is defined as 24
	// hours and may not exactly correspond to calendar days due to daylight
	// savings, leap seconds, etc. The default is not to remove old log files
	// based on age.
	MaxAge int `mapstructure:"max_age"`

	// MaxBackups is the maximum number of old log files to retain.  The default
	// is to retain all old log files (though MaxAge may still cause them to get
	// deleted.)
	MaxBackups int `mapstructure:"max_backups"`

	// Compress determines if the rotated log files should be compressed
	// using gzip. The default is not to perform compression.
	Compress bool `mapstructure:"compress"`
}

FileLoggerConfig structure represents configuration for the file logger

func (*FileLoggerConfig) InitDefaults

func (fl *FileLoggerConfig) InitDefaults() *FileLoggerConfig

type Logger

type Logger interface {
	Debug(msg string, keyvals ...interface{})
	Info(msg string, keyvals ...interface{})
	Warn(msg string, keyvals ...interface{})
	Error(msg string, keyvals ...interface{})
}

Logger is an general RR log interface

type Mode

type Mode string

Mode represents available logger modes

type StdLogAdapter

type StdLogAdapter struct {
	// contains filtered or unexported fields
}

StdLogAdapter can be passed to the http.Server or any place which required standard logger to redirect output to the logger plugin

func NewStdAdapter

func NewStdAdapter(log Logger) *StdLogAdapter

NewStdAdapter constructs StdLogAdapter

func (*StdLogAdapter) Write

func (s *StdLogAdapter) Write(p []byte) (n int, err error)

Write io.Writer interface implementation

type WithLogger

type WithLogger interface {
	With(keyvals ...interface{}) Logger
}

WithLogger creates a child logger and adds structured context to it

type ZapAdapter

type ZapAdapter struct {
	// contains filtered or unexported fields
}

func NewZapAdapter

func NewZapAdapter(zapLogger *zap.Logger) *ZapAdapter

NewZapAdapter ... which uses general log interface

func (*ZapAdapter) Debug

func (log *ZapAdapter) Debug(msg string, keyvals ...interface{})

func (*ZapAdapter) Error

func (log *ZapAdapter) Error(msg string, keyvals ...interface{})

func (*ZapAdapter) Info

func (log *ZapAdapter) Info(msg string, keyvals ...interface{})

func (*ZapAdapter) Warn

func (log *ZapAdapter) Warn(msg string, keyvals ...interface{})

func (*ZapAdapter) With

func (log *ZapAdapter) With(keyvals ...interface{}) Logger

type ZapLogger

type ZapLogger struct {
	// contains filtered or unexported fields
}

ZapLogger manages zap logger.

func (*ZapLogger) Available

func (z *ZapLogger) Available()

Available interface implementation

func (*ZapLogger) Init

func (z *ZapLogger) Init(cfg config.Configurer) error

Init logger service.

func (*ZapLogger) Name

func (z *ZapLogger) Name() string

Name returns user-friendly plugin name

func (*ZapLogger) NamedLogger

func (z *ZapLogger) NamedLogger(name string) (Logger, error)

NamedLogger returns logger dedicated to the specific channel. Similar to Named() but also reads the core params.

func (*ZapLogger) Provides

func (z *ZapLogger) Provides() []interface{}

Provides declares factory methods.

func (*ZapLogger) ServiceLogger

func (z *ZapLogger) ServiceLogger(n endure.Named) (Logger, error)

ServiceLogger returns logger dedicated to the specific channel. Similar to Named() but also reads the core params.