Class: Fluent::StdinInput

Inherits:
Input
  • Object
show all
Defined in:
lib/fluent/plugin/in_stdin.rb

Instance Method Summary collapse

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/in_stdin.rb', line 26

def configure(conf)
  super

  @parser = Plugin.new_parser(@format)
  @parser.configure(conf)
end

#emit_event(msg) ⇒ Object 



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# File 'lib/fluent/plugin/in_stdin.rb', line 70

def emit_event(msg)
  @parser.parse(msg) { |time, record|
    unless time && record
      log.warn "pattern not match: #{msg.inspect}"
      return
    end

    router.emit(@tag, time, record)
  }
rescue => e
  log.error msg.dump, :error => e, :error_class => e.class
  log.error_backtrace
end

#run ⇒ Object 



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# File 'lib/fluent/plugin/in_stdin.rb', line 42

def run
  while true
    begin
      @buffer << $stdin.sysread(4000)
      pos = 0

      while i = @buffer.index(@delimiter, pos)
        msg = @buffer[pos...i]
        emit_event(msg)
        pos = i + @delimiter.length
      end
      @buffer.slice!(0, pos) if pos > 0
    rescue IOError, EOFError => e
      # ignore above exceptions because can't re-open stdin automatically
      break
    rescue => e
      log.error "unexpected error", :error=> e.to_s
      log.error_backtrace
      break
    end
  end
  if @stop_at_finished
    Fluent::Engine.flush!
    sleep 1 # avoid 'process died within 1 second. exit.' log
    Fluent::Engine.stop
  end
end

#shutdown ⇒ Object 



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# File 'lib/fluent/plugin/in_stdin.rb', line 38

def shutdown
  @thread.join
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/in_stdin.rb', line 33

def start
  @buffer = "".force_encoding('ASCII-8BIT')
  @thread = Thread.new(&method(:run))
end