This is a Go parser for the statsd wire protocol.
Unlike most other implementations it does not perform aggregation or send the values to a metrics store, it just parses values and does a small amount of normalization. If you need aggregation or storage a github search for "statsd" will list many alternatives.
Install with go get:
go get github.com/paulhammond/statsp
StatsP will parse a slice of bytes and return a slice of Metric values:
b := []byte("gorets:1|c")
metrics, err := statsp.Parse(b)
fmt.Println(metrics[0].Name) // "gorets"
fmt.Println(metrics[0].Value) // 1.0
fmt.Println(metrics[0].Type) // statsp.Counter
The most common usage is to read StatsD data directly from the network; a basic server implementation is provided that sends received metrics on a channel.
c := make(chan statsp.Packet)
go statsp.Listen("127.0.0.1:8125", c)
for {
packet := <-c
// do something with the metric here
}
Even though StatsP doesn't perform aggregation, the Gauge type allows for both
relative and absolute values, so needs some processing. statsd.Cleaner
provides an implementation of this:
cleaner := statsp.NewCleaner()
b := []byte("foo:1|g\nfoo:+1|g\nfoo:-1|g\nfoo:-1|g\n")
metrics, err := statsp.Parse(b)
for _, metric := range(metrics) {
cleaned := cleaner.Clean(metric)
fmt.Println(metric.value, cleaned.value)
}
// Output:
// 1.0 1.0
// 1.0 2.0
// -1.0 1.0
// -1.0 0.0
An example of using both is provided in statsp-example
Copyright (c) 2013 Paul Hammond. gocollectd is available under the MIT license, see LICENSE.txt for details