forked from openshift/origin
/
metric.go
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/
metric.go
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// Copyright 2015 Google Inc. All Rights Reserved.
//
// 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.
package v2
import (
"time"
)
// Type of metric being exported.
type MetricType string
const (
// Instantaneous value. May increase or decrease.
MetricGauge MetricType = "gauge"
// A counter-like value that is only expected to increase.
MetricCumulative = "cumulative"
// Rate over a time period.
MetricDelta = "delta"
)
// An exported metric.
type Metric struct {
// The name of the metric.
Name string `json:"name"`
// Type of the metric.
Type MetricType `json:"type"`
// Metadata associated with this metric.
Labels map[string]string
// Value of the metric. Only one of these values will be
// available according to the output type of the metric.
// If no values are available, there are no data points.
IntPoints []IntPoint `json:"int_points,omitempty"`
FloatPoints []FloatPoint `json:"float_points,omitempty"`
}
// An integer metric data point.
type IntPoint struct {
// Time at which the metric was queried
Timestamp time.Time `json:"timestamp"`
// The value of the metric at this point.
Value int64 `json:"value"`
}
// A float metric data point.
type FloatPoint struct {
// Time at which the metric was queried
Timestamp time.Time `json:"timestamp"`
// The value of the metric at this point.
Value float64 `json:"value"`
}