Module: CloudwatchQuery::TimeHelpers

Defined in:
lib/cloudwatch_query/time_helpers.rb

Constant Summary collapse

UNIT_MULTIPLIERS = 
{
  seconds: 1,
  second: 1,
  minutes: 60,
  minute: 60,
  hours: 3600,
  hour: 3600,
  days: 86400,
  day: 86400,
  weeks: 604800,
  week: 604800
}.freeze

Class Method Summary collapse

Class Method Details

.duration_in_seconds(amount, unit) ⇒ Object

Raises:



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# File 'lib/cloudwatch_query/time_helpers.rb', line 18

def self.duration_in_seconds(amount, unit)
  multiplier = UNIT_MULTIPLIERS[unit.to_sym]
  raise ConfigError, "Unknown time unit: #{unit}" unless multiplier

  amount * multiplier
end

.parse_relative_time(str) ⇒ Object 



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# File 'lib/cloudwatch_query/time_helpers.rb', line 38

def self.parse_relative_time(str)
  return nil unless str.is_a?(String)

  match = str.match(/^(\d+)(s|m|h|d|w)$/)
  return nil unless match

  amount = match[1].to_i
  unit = case match[2]
         when "s" then :seconds
         when "m" then :minutes
         when "h" then :hours
         when "d" then :days
         when "w" then :weeks
         end

  Time.now - duration_in_seconds(amount, unit)
end

.to_epoch(time) ⇒ Object 



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# File 'lib/cloudwatch_query/time_helpers.rb', line 25

def self.to_epoch(time)
  case time
  when Time, DateTime
    time.to_i
  when Integer
    time
  when String
    Time.parse(time).to_i
  else
    raise ConfigError, "Cannot convert #{time.class} to epoch time"
  end
end