Module: PhobosPrometheus::Collector::Helper

Included in:
Counter, Histogram
Defined in:
lib/phobos_prometheus/collector/helper.rb

Overview

Shared code between collectors. Using module to avoid introducing inheritance

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#registry ⇒ Object (readonly)

Returns the value of attribute registry.



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# File 'lib/phobos_prometheus/collector/helper.rb', line 8

def registry
  @registry
end

Instance Method Details

#safely_update_metrics(event) ⇒ Object

rubocop:disable Lint/RescueWithoutErrorClass



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# File 'lib/phobos_prometheus/collector/helper.rb', line 26

def safely_update_metrics(event)
  event_label = EVENT_LABEL_BUILDER.call(event)
  update_metrics(event_label, event)
rescue => error
  ErrorLogger.new(error, event, @instrumentation).log
end

#setup_collector_module(instrumentation:) ⇒ Object 



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# File 'lib/phobos_prometheus/collector/helper.rb', line 10

def setup_collector_module(instrumentation:)
  @instrumentation = instrumentation
  @registry = Prometheus::Client.registry
  @metrics_prefix = PhobosPrometheus.config.metrics_prefix || 'phobos_client'

  init_metrics(instrumentation.sub('.', '_'))
  subscribe_metrics
end

#subscribe_metrics ⇒ Object 



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# File 'lib/phobos_prometheus/collector/helper.rb', line 19

def subscribe_metrics
  Phobos::Instrumentation.subscribe(@instrumentation) do |event|
    safely_update_metrics(event)
  end
end