Module: Logger::Metadata::Formatter

Defined in:
lib/logger/metadata/formatter.rb

Instance Method Summary collapse

Instance Method Details

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



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# File 'lib/logger/metadata/formatter.rb', line 6

def call(severity, timestamp, program_name, message)
  timestamp_string = '[' + timestamp.to_s + ']'
  formatted_message = "#{faint(timestamp_string)} #{message}#{faint(metadata_text)}"
  super(severity, timestamp, program_name, formatted_message)
end

#clear_metadata! ⇒ Object 



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# File 'lib/logger/metadata/formatter.rb', line 36

def clear_metadata!
  metadata_stack.clear
end

#current_metadata ⇒ Object 



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# File 'lib/logger/metadata/formatter.rb', line 17

def current_metadata
  metadata_stack.inject({}, &:merge)
end

#faint(string) ⇒ Object 



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# File 'lib/logger/metadata/formatter.rb', line 46

def faint(string)
  if string.empty?
    string
  else
    "\e[2m#{string}\e[0m"
  end
end

#metadata(attributes) ⇒ Object 



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# File 'lib/logger/metadata/formatter.rb', line 21

def metadata(attributes)
  push_metadata(attributes)
  yield self
ensure
  pop_metadata
end

#metadata_stack ⇒ Object 



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# File 'lib/logger/metadata/formatter.rb', line 12

def metadata_stack
  thread_key = @metadata_thread_key ||= "metadata_logging:#{object_id}".freeze
  Thread.current[thread_key] ||= []
end

#metadata_text ⇒ Object 



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# File 'lib/logger/metadata/formatter.rb', line 40

def metadata_text
  current_metadata.map do |(key, value)|
    " (#{key}=#{value})"
  end.join('')
end

#pop_metadata(size = 1) ⇒ Object 



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# File 'lib/logger/metadata/formatter.rb', line 32

def pop_metadata(size = 1)
  metadata_stack.pop size
end

#push_metadata(attributes) ⇒ Object 



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# File 'lib/logger/metadata/formatter.rb', line 28

def push_metadata(attributes)
  metadata_stack.push attributes
end