Class: Fluent::TextParser::JSONishParser

Inherits:
JSONParser
  • Object
show all
Defined in:
lib/fluent/plugin/parser_jsonish.rb

Direct Known Subclasses

NginxJSONishParser, NodejsBunyanParser

Instance Method Summary collapse

Constructor Details

#initialize ⇒ JSONishParser

Returns a new instance of JSONishParser.



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# File 'lib/fluent/plugin/parser_jsonish.rb', line 50

def initialize
  super
end

Instance Method Details

#configure(conf) ⇒ Object 



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# File 'lib/fluent/plugin/parser_jsonish.rb', line 54

def configure(conf)

  if conf['time_format']
    # Remove the time_format key before the super call
    # so the it does as little as possible as possible
    # (ie. less that we'll have to override).
    tmp_time_format = conf['time_format']
    conf.delete('time_format')
  end

  super(conf)

  @time_parser = StdFormatTimeParser.new(tmp_time_format)
  @mutex = Mutex.new

  # This may look stupid (it actually is really stupid),
  # but this *must* be set back to a non-null string
  # prior to the return, since the superclass parser
  # method checks for this and them implements its
  # own ad hoc parser, in-line.  This is a necessary
  # kludge to bypass a more egregious kludge.
  @time_format = 'ignore_me'

  @transforms = []

  @maps.each do |elem|
    if elem.is_a?(Array)
      @transforms << [ Regexp.new(elem[0]), elem[1] ]
    elsif elem.is_a?(String)
      if elem == 'slashes'
        @transforms << [ Regexp.new("\\\\"), "\\\\\\" ]
      elsif elem == 'nulls'
        @null_maps.each do |e|
          @transforms << [ Regexp.new(sprintf(e[0],@null_pattern)), e[1] ]
        end
      else
        raise ConfigError, "Unknown transform #{elem}."
      end
    else
      raise ConfigError, "Unknown transform data type."
    end
  end

  @message_key = conf['message_key']
  @add_full_message = conf['add_full_message']

end

#parse(text) ⇒ Object 



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# File 'lib/fluent/plugin/parser_jsonish.rb', line 102

def parse(text)

  full_message = @add_full_message ? text : nil

  @transforms.each do |args|
    text.gsub!(*args)
  end

  super(text) do |time,record|
    if @message_key
      record['message'] = record[@message_key]
    end

    if full_message
      record['full_message'] = full_message
    end

    yield time, record
  end

end