class PumaCloudwatch::Metrics::Looper

Public Class Methods

new(options) click to toggle source
# File lib/puma_cloudwatch/metrics/looper.rb, line 7
def initialize(options)
  @options = options
  @control_url = options[:control_url]
  @control_auth_token = options[:control_auth_token]
  @frequency = Integer(ENV['PUMA_CLOUDWATCH_FREQUENCY'] || 60)
  @enabled = ENV['PUMA_CLOUDWATCH_ENABLED'] || false
end
run(options) click to toggle source
# File lib/puma_cloudwatch/metrics/looper.rb, line 3
def self.run(options)
  new(options).run
end

Public Instance Methods

message() click to toggle source
# File lib/puma_cloudwatch/metrics/looper.rb, line 23
def message
  message = "puma-cloudwatch plugin: Will send data every #{@frequency} seconds."
  unless @enabled
    to_enable = "To enable set the environment variable PUMA_CLOUDWATCH_ENABLED=1"
    message = "Disabled: #{message}\n#{to_enable}"
  end
  message
end
run() click to toggle source
# File lib/puma_cloudwatch/metrics/looper.rb, line 15
def run
  raise StandardError, "Puma control app is not activated" if @control_url == nil
  puts(message) unless ENV['PUMA_CLOUDWATCH_MUTE_START_MESSAGE']
  Thread.new do
    perform
  end
end

Private Instance Methods

enabled?() click to toggle source
# File lib/puma_cloudwatch/metrics/looper.rb, line 46
def enabled?
  !!@enabled
end
perform() click to toggle source
# File lib/puma_cloudwatch/metrics/looper.rb, line 33
def perform
  loop do
    begin
      stats = Fetcher.new(@options).call
      results = Parser.new(stats).call
      Sender.new(results).call unless results.empty?
      sleep @frequency
    rescue Exception => e
      puts "Error reached top of looper: #{e.message} (#{e.class})"
    end
  end
end