Class: JsonTaggedLogger::Formatter

Inherits:
Object
  • Object
show all
Defined in:
lib/json_tagged_logger/formatter.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(pretty_print: false) ⇒ Formatter

Returns a new instance of Formatter.



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# File 'lib/json_tagged_logger/formatter.rb', line 8

def initialize(pretty_print: false)
  @pretty_print = pretty_print
end

Instance Attribute Details

#pretty_print ⇒ Object

Returns the value of attribute pretty_print.



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# File 'lib/json_tagged_logger/formatter.rb', line 6

def pretty_print
  @pretty_print
end

Instance Method Details

#call(severity, _time, _progname, message) ⇒ Object 



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# File 'lib/json_tagged_logger/formatter.rb', line 12

def call(severity, _time, _progname, message)
  log = {
    level: severity,
  }

  json_tags, text_tags = extract_tags

  json_tags.each { |t| log.merge!(t) }

  if text_tags.present?
    log[:tags] = text_tags.to_a
  end

  bare_message = message_without_tags(message)

  begin
    parsed_message = JSON.parse(bare_message)
  rescue JSON::ParserError
    parsed_message = bare_message
  ensure
    if parsed_message.is_a?(Hash)
      parsed_message.symbolize_keys!
      if log.has_key?(:tags) && parsed_message.has_key?(:tags)
        parsed_message[:tags] = parsed_message[:tags] + log[:tags]
      end

      log.merge!(parsed_message)
    else
      log.merge!(msg: parsed_message.to_s.strip)
    end
  end

  format_for_output(log)
end