Class: Bipbip::Plugin::LogParser

Inherits:
Bipbip::Plugin show all
Defined in:
lib/bipbip/plugin/log_parser.rb

Instance Attribute Summary

Attributes inherited from Bipbip::Plugin

#config, #frequency, #metric_group, #name, #tags

Instance Method Summary collapse

Methods inherited from Bipbip::Plugin

factory, factory_from_plugin, #initialize, #metrics_names, #run, #source_identifier

Methods included from InterruptibleSleep

#interrupt_sleep, #interruptible_sleep

Constructor Details

This class inherits a constructor from Bipbip::Plugin

Instance Method Details

#metrics_schema ⇒ Object 



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# File 'lib/bipbip/plugin/log_parser.rb', line 5

def metrics_schema
  config['matchers'].map do |matcher|
    { name: matcher['name'], type: 'gauge', unit: 'Boolean' }
  end
end

#monitor ⇒ Object 



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# File 'lib/bipbip/plugin/log_parser.rb', line 11

def monitor
  begin
    io = IO.select([notifier.to_io], [], [], 0)
  rescue Errno::EBADF => e
    log(Logger::WARN, 'Selecting from inotify IO gives EBADF, resetting notifier')
    reset_notifier
  end

  unless io.nil?
    n = notifier
    begin
      n.process
    rescue NoMethodError => e
      # Ignore errors from closed notifier - see https://github.com/nex3/rb-inotify/issues/41
      raise e unless n.watchers.empty?
    end
  end

  lines = @lines.entries
  @lines.clear

  Hash[
    config['matchers'].map do |matcher|
      name = matcher['name']
      regexp = Regexp.new(matcher['regexp'])
      value = lines.count { |line| !line.match(regexp).nil? }
      [name, value]
    end
  ]
end