Class: ShellElf::Runner

Inherits:
Object
  • Object
show all
Defined in:
lib/shell_elf/runner.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(options) ⇒ Runner

Returns a new instance of Runner.



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# File 'lib/shell_elf/runner.rb', line 18

def initialize(options)
  @options = options
end

Class Method Details

.run(options) ⇒ Object 



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# File 'lib/shell_elf/runner.rb', line 6

def run(options)
  runner = new(options)
  signal_handler = proc do
    ShellElf.logger.info("Received signal - gracefully exiting...")
    exit if runner.interrupted!
  end
  trap('INT', &signal_handler)
  trap('TERM', &signal_handler)
  runner.run
end

Instance Method Details

#interrupted! ⇒ Object 



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# File 'lib/shell_elf/runner.rb', line 33

def interrupted!
  # return true unless @current
  if @current && @current[:options] && @current[:options][:on_interrupt] == :requeue
    starling.set(@options[:queue], @current)
    true
  else
    @interrupted = true
    false
  end
end

#run ⇒ Object 



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# File 'lib/shell_elf/runner.rb', line 22

def run
  until @interrupted
    if starling && @current = starling.fetch(@options[:queue])
      ShellElf.logger.debug("RUNNER: #{@current.inspect}")
      ShellElf::Batch.execute(@current)
    else
      sleep Starling::WAIT_TIME
    end
  end
end