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metrics.go
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/
metrics.go
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// Package metrics provides both a means of generating metrics and the ability
// to send metric data to a graphite endpoint.
// The usage of this package without providing a graphite_addr when calling
// NewBucket results in NOP metric objects. No data will be collected.
package metrics
import (
"io"
gometrics "github.com/coreos/etcd/third_party/github.com/rcrowley/go-metrics"
)
type Timer gometrics.Timer
type Gauge gometrics.Gauge
type Bucket interface {
// If a timer exists in this Bucket, return it. Otherwise, create
// a new timer with the given name and store it in this Bucket.
// The returned object will fulfull the Timer interface.
Timer(name string) Timer
// This acts similarly to Timer, but with objects that fufill the
// Gauge interface.
Gauge(name string) Gauge
// Write the current state of all Metrics in a human-readable format
// to the provide io.Writer.
Dump(io.Writer)
// Instruct the Bucket to periodically push all metric data to the
// provided graphite endpoint.
Publish(string) error
}
// Create a new Bucket object that periodically
func NewBucket(name string) Bucket {
if name == "" {
return nilBucket{}
}
return newStandardBucket(name)
}