Class: Fluent::CatSweepInput

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

Defined Under Namespace

Classes: FormatError, OneLineMaxBytesOverError

Instance Method Summary collapse

Instance Method Details

#configure(conf) ⇒ Object 



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

def configure(conf)
  super

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

  if @processing_file_suffix.empty?
    raise Fluent::ConfigError, "in_cat_sweep: `processing_file_suffix` must has some letters."
  end

  if @error_file_suffix.empty?
    raise Fluent::ConfigError, "in_cat_sweep: `error_file_suffix` must has some letters."
  end

  if @line_terminated_by.empty?
    raise Fluent::ConfigError, "in_cat_sweep: `line_terminated_by` must has some letters."
  end

  if !remove_file?
    first_filename = Dir.glob(@file_path_with_glob).first
    dirname = first_filename ? move_dirname(first_filename) : @move_to
    if Dir.exist?(dirname)
      if !File.writable?(dirname)
        raise Fluent::ConfigError, "in_cat_sweep: `move_to` directory (#{dirname}) must be writable."
      end
    else
      begin
        FileUtils.mkdir_p(dirname)
      rescue => e
        raise Fluent::ConfigError, "in_cat_sweep: `move_to` directory (#{dirname}) must be writable."
      end
    end
  end

  @read_bytes_once = 262144 # 256 KB

end

#run_periodic ⇒ Object 



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# File 'lib/fluent/plugin/in_cat_sweep.rb', line 83

def run_periodic
  while @processing
    sleep @run_interval

    Dir.glob(@file_path_with_glob).map do |filename|
      next unless will_process?(filename)

      processing_filename = get_processing_filename(filename)
      begin
        lock_with_renaming(filename, processing_filename) do
          process(filename, processing_filename)
          after_processing(processing_filename)
        end
      rescue => e
        log.error "in_cat_sweep: processing: #{processing_filename}", :error => e, :error_class => e.class
        log.error_backtrace
        safe_fail(e, processing_filename)
      end
    end
  end
end

#shutdown ⇒ Object 



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# File 'lib/fluent/plugin/in_cat_sweep.rb', line 78

def shutdown
  @processing = false
  @thread.join
end

#start ⇒ Object 



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# File 'lib/fluent/plugin/in_cat_sweep.rb', line 73

def start
  @processing = true
  @thread = Thread.new(&method(:run_periodic))
end