module Hallmonitor::Monitored::ClassMethods

Public Instance Methods

count_for(method_sym, metric_name: nil, tags: {}) click to toggle source

Sets up a counter for a method by symbol. Method must have already been defined (ie. put this after the method definition) @param method_sym [Symbol] method name as a symbol @options [Hash] Optional settings:

metric_name: [String] Metric name to emit, defaults to
"#{underscore(name)}.#{method_sym}"
# File lib/hallmonitor/monitored.rb, line 32
def count_for(method_sym, metric_name: nil, tags: {})
  metric_name ||= "#{underscore(name)}.#{method_sym}"
  undecorated_method_sym = "#{method_sym}_without_hallmonitor_counter".to_sym
  decorated_method_sym = "#{method_sym}_with_hallmonitor_counter".to_sym
  send(:define_method, decorated_method_sym) do |*args|
    emit(metric_name, tags: tags)
    send(undecorated_method_sym, *args)
  end

  alias_method undecorated_method_sym, method_sym
  alias_method method_sym, decorated_method_sym
end
timer_for(method_sym, metric_name: nil, tags: {}) click to toggle source

Sets up a timer for a method by symbol. Method must have already been defined (ie. put this after the method definition) @param method_sym [Symbol] method name as a symbol @options [Hash] Optional settings:

metric_name: [String] Metric name to emit, defaults to
"#{underscore(name)}.#{method_sym}"
# File lib/hallmonitor/monitored.rb, line 12
def timer_for(method_sym, metric_name: nil, tags: {})
  metric_name ||= "#{underscore(name)}.#{method_sym}"
  undecorated_method_sym = "#{method_sym}_without_hallmonitor_timer".to_sym
  decorated_method_sym = "#{method_sym}_with_hallmonitor_timer".to_sym
  send(:define_method, decorated_method_sym) do |*args|
    watch(metric_name, tags: tags) do
      send(undecorated_method_sym, *args)
    end
  end

  alias_method undecorated_method_sym, method_sym
  alias_method method_sym, decorated_method_sym
end
underscore(value) click to toggle source

:reek: UtilityFunction

# File lib/hallmonitor/monitored.rb, line 46
def underscore(value)
  word = value.dup
  word.gsub!(/::/, '.')
  word.gsub!(/([A-Z]+)([A-Z][a-z])/, '\1_\2')
  word.gsub!(/([a-z\d])([A-Z])/, '\1_\2')
  word.tr!('-', ' ')
  word.downcase!
  word
end