Method: Wakame::MasterManagers::ActionManager#run_action

Defined in:
lib/wakame/master_managers/action_manager.rb

#run_action(action) ⇒ Object

Raises:

  • (ArgumentError) 


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# File 'lib/wakame/master_managers/action_manager.rb', line 89

def run_action(action)
  raise ArgumentError unless action.is_a?(Action)
  job_context = @active_jobs[action.job_id]
  raise "The job session is killed.: job_id=#{action.job_id}" if job_context.nil?

  EM.next_tick {

    begin
      
      if job_context[:start_at].nil?
        job_context[:start_at] = Time.new
        ED.fire_event(Event::JobStart.new(action.job_id))
      end

      EM.defer proc {
        res = nil
        begin
          action.bind_thread(Thread.current)
          action.status = :running
          Wakame.log.debug("Start action : #{action.class.to_s} #{action.parent_action.nil? ? '' : ('sub-action of ' + action.parent_action.class.to_s)}")
          ED.fire_event(Event::ActionStart.new(action))
          begin
            action.run
            action.completion_status = :succeeded
            Wakame.log.debug("Complete action : #{action.class.to_s}")
            ED.fire_event(Event::ActionComplete.new(action))
          end
        rescue CancelBroadcast => e
          Wakame.log.info("Received cancel signal: #{e}")
          action.completion_status = :canceled
          begin
            action.on_canceled
          rescue => e
            Wakame.log.error(e)
          end
          ED.fire_event(Event::ActionFailed.new(action, e))
          res = e
        rescue => e
          Wakame.log.error("Failed action : #{action.class.to_s} due to #{e}")
          Wakame.log.error(e)
          action.completion_status = :failed
          begin
            action.on_failed
          rescue => e
            Wakame.log.error(e)
          end
          ED.fire_event(Event::ActionFailed.new(action, e))
          # Escalate the cancelation event to parents.
          unless action.parent_action.nil?
            action.parent_action.notify(e)
          end
          # Force to cancel the current job when the root action ignored the elevated exception.
          if action === job_context[:root_action]
            Wakame.log.warn("The escalated exception (#{e.class}) has reached to the root action (#{action.class}). Forcing to cancel the current job #{job_context[:job_id]}")
            cancel_action(job_context[:job_id]) #rescue Wakame.log.error($!)
          end
          res = e
        ensure
          action.status = :complete
          action.bind_thread(nil)
        end

        StatusDB.pass {
          process_job_complete(action, res)
        }
      }
    rescue => e
      Wakame.log.error(e)
    end
  }
end