Module: CloudWatchLogger::Client::InstanceMethods

Included in:
AWS_SDK
Defined in:
lib/cloudwatchlogger/client.rb

Instance Method Summary collapse

Instance Method Details

#default_log_stream_name ⇒ Object 



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# File 'lib/cloudwatchlogger/client.rb', line 84

def default_log_stream_name
  @log_stream_name ||= "#{Socket.gethostname}-#{SecureRandom.uuid}"
end

#epoch_from(datetime) ⇒ Object 



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# File 'lib/cloudwatchlogger/client.rb', line 88

def epoch_from(datetime)
  (datetime.utc.to_f.round(3) * 1000).to_i
end

#formatter(format = nil) ⇒ Object 



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# File 'lib/cloudwatchlogger/client.rb', line 36

def formatter(format=nil)
  proc do |severity, datetime, progname, msg|
    processid = Process.pid
    if format == :json && msg.is_a?(Hash)
      message = MultiJson.dump(msg.merge(severity: severity,
                               datetime: datetime,
                               progname: progname,
                               pid: processid))
    else
      message = "#{datetime} "
      message << massage_message(msg, severity, processid)
    end

    {
      message:    message,
      epoch_time: epoch_from(datetime)
    }
  end
end

#masher(hash, prefix = nil) ⇒ Object 



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# File 'lib/cloudwatchlogger/client.rb', line 21

def masher(hash, prefix = nil)
  hash.map do |v|
    if v[1].is_a?(Hash)
      masher(v[1], masherize_key(prefix, v[0]))
    else
      "#{masherize_key(prefix, v[0])}=" << case v[1]
                                           when Symbol
                                             v[1].to_s
                                           else
                                             v[1].inspect
                                           end
    end
  end.join(', ')
end

#masherize_key(prefix, key) ⇒ Object 



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# File 'lib/cloudwatchlogger/client.rb', line 17

def masherize_key(prefix, key)
  [prefix, key.to_s].compact.join('.')
end

#massage_message(incoming_message, severity, processid) ⇒ Object 



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# File 'lib/cloudwatchlogger/client.rb', line 56

def massage_message(incoming_message, severity, processid)
  outgoing_message = ''

  outgoing_message << "pid=#{processid}, thread=#{Thread.current.object_id}, severity=#{severity}, "

  outgoing_message << case incoming_message
                      when Hash
                        masher(incoming_message)
                      when String
                        incoming_message
                      else
                        incoming_message.inspect
                      end
  outgoing_message
end

#setup_credentials(credentials) ⇒ Object 



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# File 'lib/cloudwatchlogger/client.rb', line 72

def setup_credentials(credentials)
  @credentials = credentials
end

#setup_log_group_name(name) ⇒ Object 



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# File 'lib/cloudwatchlogger/client.rb', line 76

def setup_log_group_name(name)
  @log_group_name = name
end

#setup_log_stream_name(name) ⇒ Object 



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# File 'lib/cloudwatchlogger/client.rb', line 80

def setup_log_stream_name(name)
  @log_stream_name = name || default_log_stream_name
end