/
metrics.go
80 lines (69 loc) · 1.8 KB
/
metrics.go
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package model
import (
"fmt"
"github.com/openziti/fablab/kernel/lib/timeutil"
"strings"
"time"
)
type MetricSet map[string]interface{}
func (s MetricSet) AddGroupedMetric(group, name string, val interface{}) {
if group == "" || group == name {
s[name] = val
} else {
name = strings.TrimPrefix(name, group+".")
groupMapVal, found := s[group]
if !found {
groupMap := MetricSet{}
s[group] = groupMap
groupMap[name] = val
} else {
groupMap := groupMapVal.(MetricSet)
groupMap[name] = val
}
}
}
func (s MetricSet) VisitUngroupedMetrics(f func(name string, val interface{})) {
for k, v := range s {
if _, ok := v.(MetricSet); !ok {
f(k, v)
}
}
}
func (s MetricSet) VisitGroupedMetrics(f func(name string, group MetricSet)) {
for k, v := range s {
if groupSet, ok := v.(MetricSet); ok {
f(k, groupSet)
}
}
}
type MetricsEvent struct {
Timestamp time.Time
Metrics MetricSet
Tags map[string]string
}
type MetricsHandler interface {
AcceptHostMetrics(host *Host, event *MetricsEvent)
}
type DataMetricsWriter struct {
}
func (DataMetricsWriter) AcceptHostMetrics(host *Host, event *MetricsEvent) {
var metricsSlice []map[string]interface{}
val, found := host.Data["metrics"]
if found {
metricsSlice = val.([]map[string]interface{})
}
metricsMap := map[string]interface{}{}
metricsMap["timestamp_ms"] = fmt.Sprintf("%v", timeutil.TimeToMilliseconds(event.Timestamp))
for name, val := range event.Metrics {
metricsMap[name] = val
}
host.Data["metrics"] = append(metricsSlice, metricsMap)
}
type StdOutMetricsWriter struct {
}
func (StdOutMetricsWriter) AcceptHostMetrics(host *Host, event *MetricsEvent) {
fmt.Printf("metrics event - host %v at timestamp: %v\n", host.GetId(), event.Timestamp)
for k, v := range event.Metrics {
fmt.Printf("\t%v = %v\n", k, v)
}
}