Class: PhobosPrometheus::GaugesValidator

Inherits:
Object
  • Object
show all
Includes:
Logger
Defined in:
lib/phobos_prometheus/config_parser.rb

Overview

Validate gauges

Constant Summary collapse

GAUGE_LABEL_MISSING = 
'Missing required key :label for gauge'
GAUGE_INCREMENT_MISSING = 
'Missing required key :increment for gauge'
GAUGE_DECREMENT_MISSING = 
'Missing required key :decrement for gauge'
GAUGE_INVALID_KEY = 
'Invalid configuration option detected at gauge level, ignoring'
GAUGE_KEYS = 
[:label, :increment, :decrement].freeze

Instance Method Summary collapse

Methods included from Logger

#log_error, #log_info, #log_warn

Constructor Details

#initialize(gauges) ⇒ GaugesValidator

Returns a new instance of GaugesValidator.



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# File 'lib/phobos_prometheus/config_parser.rb', line 101

def initialize(gauges)
  @gauges = gauges
end

Instance Method Details

#validate ⇒ Object 



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# File 'lib/phobos_prometheus/config_parser.rb', line 105

def validate
  @gauges.map do |gauge|
    validate_gauge(gauge)
  end
end

#validate_gauge(gauge) ⇒ Object 



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# File 'lib/phobos_prometheus/config_parser.rb', line 111

def validate_gauge(gauge)
  Helper.assert_required_key(gauge, :label) || Helper.fail_config(GAUGE_LABEL_MISSING)
  Helper.assert_required_key(gauge, :increment) || Helper.fail_config(GAUGE_INCREMENT_MISSING)
  Helper.assert_required_key(gauge, :decrement) || Helper.fail_config(GAUGE_DECREMENT_MISSING)
  Helper.check_invalid_keys(GAUGE_KEYS, gauge) || \
    log_warn(GAUGE_INVALID_KEY)
end