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bark's Introduction

Synopsis Build Status

Defines an interface for loggers and stats reporters that can be passed to Uber Go libraries.
Provides implementations which wrap a common logging module, logrus, and a common stats reporting module go-statsd-client.
Clients may also choose to implement these interfaces themselves.

Key Interfaces

Logging

// Logger is an interface for loggers accepted by Uber's libraries.
type Logger interface {
	// Log at debug level
	Debug(args ...interface{})

	// Log at debug level with fmt.Printf-like formatting
	Debugf(format string, args ...interface{})

	// Log at info level
	Info(args ...interface{})

	// Log at info level with fmt.Printf-like formatting
	Infof(format string, args ...interface{})

	// Log at warning level
	Warn(args ...interface{})

	// Log at warning level with fmt.Printf-like formatting
	Warnf(format string, args ...interface{})

	// Log at error level
	Error(args ...interface{})

	// Log at error level with fmt.Printf-like formatting
	Errorf(format string, args ...interface{})

	// Log at fatal level, then terminate process (irrecoverable)
	Fatal(args ...interface{})

	// Log at fatal level with fmt.Printf-like formatting, then terminate process (irrecoverable)
	Fatalf(format string, args ...interface{})

	// Log at panic level, then panic (recoverable)
	Panic(args ...interface{})

	// Log at panic level with fmt.Printf-like formatting, then panic (recoverable)
	Panicf(format string, args ...interface{})

	// Return a logger with the specified key-value pair set, to be logged in a subsequent normal logging call
	WithField(key string, value interface{}) Logger

	// Return a logger with the specified key-value pairs set, to be  included in a subsequent normal logging call
	WithFields(keyValues LogFields) Logger

	// Return map fields associated with this logger, if any (i.e. if this logger was returned from WithField[s])
	// If no fields are set, returns nil
	Fields() Fields
}

Stats Reporting

// StatsReporter is an interface for statsd-like stats reporters accepted by Uber's libraries.
// Its methods take optional tag dictionaries which may be ignored by concrete implementations.
type StatsReporter interface {
	// Increment a statsd-like counter with optional tags
	IncCounter(name string, tags Tags, value int64)

	// Increment a statsd-like gauge ("set" of the value) with optional tags
	UpdateGauge(name string, tags Tags, value int64)

	// Record a statsd-like timer with optional tags
	RecordTimer(name string, tags Tags, d time.Duration)
}

Basic Usage

logger := logrus.New()
barkLogger := bark.NewLoggerFromLogrus(logger)
barkLogger.WithFields(bark.Fields{"someField":"someValue"}).Info("Message")

statsd, err := statsd.New("127.0.0.1:8125", "barktest")
if err != nil {
    logger.Fatal("Example code failed")
}

barkStatsReporter := bark.NewStatsReporterFromCactus(statsd)  
barkStatsReporter.IncCounter("foo", map[string]string{"tag":"val"}, 1)
 
ubermodule.New(ubermodule.Config{
    logger: barkLogger
    statsd: barkStatsReporter
})

Contributors

dh

License

bark is available under the MIT license. See the LICENSE file for more info.

bark's People

Contributors

abhinav avatar akshayjshah avatar bryndin avatar danielheller avatar jkanywhere avatar jwolski2 avatar

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bark's Issues

Getting some failures when running tests on master

uber@sylvannas ~/go/src/github.com/uber/bark [master]$ go test ./...
# github.com/uber/bark
./cactus_stats_reporter.go:44: s.delegate.TimingDuration undefined (type statsd.Statter has no field or method TimingDuration)
FAIL    github.com/uber/bark [build failed]
?       github.com/uber/bark/mocks      [no test files]

$ go version
go version go1.5 linux/amd64

Is this a known issue?

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