Module: Nifty::Utils::UntilWithMaxAttempts

Defined in:
lib/nifty/utils/until_with_max_attempts.rb

Defined Under Namespace

Classes: MaxAttemptsReached

Class Method Summary collapse

Class Method Details

.until(condition, options = {}, &block) ⇒ Object

Like a usual while block but with a maximum attempt counter. Can be used like this

Attempts.until proc { job.completed? }, :attempts => 10, :gap => 5 do
  puts "Waiting for job to complete..."
end

The proc is the condition which will be evaluated, :attempts sets the maximum number of times it will wait before raising an exception and :gap is the length of time in seconds to wait between each check.



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# File 'lib/nifty/utils/until_with_max_attempts.rb', line 23

def self.until(condition, options = {}, &block)
  options[:attempts] ||= 10
  count = 0
  until condition.call

    if count == options[:attempts]
      raise MaxAttemptsReached, "Maximum attempts reached (#{options[:attempts]}) without success"
    end

    yield

    count += 1

    if options[:gap] && count < options[:attempts]
      sleep options[:gap]
    end

  end
end