Class: Fluent::MatchCounter

Inherits:
Plugin::Filter
  • Object
show all
Defined in:
lib/fluent/plugin/match_counter.rb

Instance Method Summary collapse

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/match_counter.rb', line 31

def configure(conf)
  super
end

#filter(tag, time, record) ⇒ Object 



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# File 'lib/fluent/plugin/match_counter.rb', line 35

def filter(tag, time, record)
  out = []
  @match_counter.each do |mc|
    str = \
      begin
        ek = mc[:event_key].to_sym
        next unless ek.nil? || record.has_key?(ek)

        record[ek]
      rescue
        record.to_s
      end

    if !!((mc[:regexp] && Regexp.new(mc[:matcher]).match(str)) || \
      str.include?(mc[:matcher]))

      name = mc[:name].clone
      name.gsub!('${tag}', tag) if name.include?('${tag}')

      met = {
        name: name,
        value: 1
      }
      met[:type] = mc[:type] unless mc[:type].nil?
      met.merge!(mc[:fields]) unless mc[:fields].nil?

      out << met
    end
  end

  return nil if out.empty?
  out
end

#filter_stream(tag, es) ⇒ Object 



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# File 'lib/fluent/plugin/match_counter.rb', line 69

def filter_stream(tag, es)
  new_es = Fluent::MultiEventStream.new
  es.each do |time, record|
    begin
      new_es.add(time, filter(tag, time, record))
    rescue => e
      router.emit_error_event(tag, time, record, e)
    end
  end

  new_es
end