Class: Rage::JSONFormatter

Inherits:
Object
  • Object
show all
Defined in:
lib/rage/logger/json_formatter.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ JSONFormatter

Returns a new instance of JSONFormatter.



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# File 'lib/rage/logger/json_formatter.rb', line 2

def initialize
  @pid = Process.pid.to_s
  Iodine.on_state(:on_start) do
    @pid = Process.pid.to_s
  end
end

Instance Method Details

#call(severity, timestamp, _, message) ⇒ Object 



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# File 'lib/rage/logger/json_formatter.rb', line 9

def call(severity, timestamp, _, message)
  logger = Thread.current[:rage_logger] || { tags: [], context: {} }
  tags, context = logger[:tags], logger[:context]

  if !context.empty?
    context_msg = ""
    context.each { |k, v| context_msg << "\"#{k}\":#{v.to_json}," }
  end

  if (final = logger[:final])
    params, env = final[:params], final[:env]
    if params && params[:controller]
      return "{\"tags\":[\"#{tags[0]}\"],\"timestamp\":\"#{timestamp}\",\"pid\":\"#{@pid}\",\"level\":\"info\",\"method\":\"#{env["REQUEST_METHOD"]}\",\"path\":\"#{env["PATH_INFO"]}\",\"controller\":\"#{Rage::Router::Util.path_to_name(params[:controller])}\",\"action\":\"#{params[:action]}\",#{context_msg}\"status\":#{final[:response][0]},\"duration\":#{final[:duration]}}\n"
    else
      # no controller/action keys are written if there are no params
      return "{\"tags\":[\"#{tags[0]}\"],\"timestamp\":\"#{timestamp}\",\"pid\":\"#{@pid}\",\"level\":\"info\",\"method\":\"#{env["REQUEST_METHOD"]}\",\"path\":\"#{env["PATH_INFO"]}\",#{context_msg}\"status\":#{final[:response][0]},\"duration\":#{final[:duration]}}\n"
    end
  end

  if tags.length == 1
    tags_msg = "{\"tags\":[\"#{tags[0]}\"],\"timestamp\":\"#{timestamp}\",\"pid\":\"#{@pid}\",\"level\":\"#{severity}\""
  elsif tags.length == 2
    tags_msg = "{\"tags\":[\"#{tags[0]}\",\"#{tags[1]}\"],\"timestamp\":\"#{timestamp}\",\"pid\":\"#{@pid}\",\"level\":\"#{severity}\""
  elsif tags.length == 0
    tags_msg = "{\"timestamp\":\"#{timestamp}\",\"pid\":\"#{@pid}\",\"level\":\"#{severity}\""
  else
    tags_msg = "{\"tags\":[\"#{tags[0]}\",\"#{tags[1]}\""
    i = 2
    while i < tags.length
      tags_msg << ",\"#{tags[i]}\""
      i += 1
    end
    tags_msg << "],\"timestamp\":\"#{timestamp}\",\"pid\":\"#{@pid}\",\"level\":\"#{severity}\""
  end

  "#{tags_msg},#{context_msg}\"message\":\"#{message}\"}\n"
end