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Size: 1.1 KB
Versions: 10
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Contents
# encoding: UTF-8
require 'prometheus/client/metric'
module Prometheus
module Client
# A Gauge is a metric that exposes merely an instantaneous value or some
# snapshot thereof.
class Gauge < Metric
def type
:gauge
end
# Sets the value for the given label set
def set(value, labels: {})
unless value.is_a?(Numeric)
raise ArgumentError, 'value must be a number'
end
@store.set(labels: label_set_for(labels), val: value)
end
# Increments Gauge value by 1 or adds the given value to the Gauge.
# (The value can be negative, resulting in a decrease of the Gauge.)
def increment(by: 1, labels: {})
label_set = label_set_for(labels)
@store.increment(labels: label_set, by: by)
end
# Decrements Gauge value by 1 or subtracts the given value from the Gauge.
# (The value can be negative, resulting in a increase of the Gauge.)
def decrement(by: 1, labels: {})
label_set = label_set_for(labels)
@store.increment(labels: label_set, by: -by)
end
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems