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// Copyright 2015 The Prometheus Authors
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// +build !notime
package collector
import (
"time"
"github.com/prometheus/client_golang/prometheus"
"github.com/prometheus/common/log"
)
type timeCollector struct {
metric prometheus.Counter
}
func init() {
Factories["time"] = NewTimeCollector
}
// Takes a prometheus registry and returns a new Collector exposing
// the current system time in seconds since epoch.
func NewTimeCollector() (Collector, error) {
return &timeCollector{
metric: prometheus.NewCounter(prometheus.CounterOpts{
Namespace: Namespace,
Name: "time",
Help: "System time in seconds since epoch (1970).",
}),
}, nil
}
func (c *timeCollector) Update(ch chan<- prometheus.Metric) (err error) {
now := float64(time.Now().Unix())
log.Debugf("Set time: %f", now)
c.metric.Set(now)
c.metric.Collect(ch)
return err
}
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