Method: Task#execute

Defined in:
lib/yodel/task_queue/task.rb

#execute ⇒ Object 



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# File 'lib/yodel/task_queue/task.rb', line 23

def execute
  # TODO: plugins need a way of inserting themselves in to this switch
  case self.type
  when 'deliver_email'
    email = site.emails.find(params['_id'])
    email.perform_delivery(params)
  when 'call_api'
    api_call = site.api_calls.find(params['_id'])
    api_call.perform_call(params)
  when 'perform_destroy_stale_carts'
    Cart.perform_destroy_stale_carts(site)
  end
  
  # if the task repeats, place it on the queue again by reseting the
  # due time and removing the locked time making it available again
  if repeat_in?
    self.due = Time.at(Time.now.utc.to_i + repeat_in)
    self.locked = nil
    self.save
  else
    self.destroy
  end
  
rescue
  # increase the attempt count after any exceptions. after N attempts
  # the task is halted and assumed to have failed. manual intervention
  # is required to start it again. delay its execution on the queue for
  # a certain amount of time to potentially allow resource issues to
  # "fix themselves" (such as loss of network).
  self.attempts += 1
  
  if self.attempts < MAX_TASK_ATTEMPTS
    self.due = Time.at(Time.now.utc.to_i + FAILED_TASK_DELAY)
    self.locked = nil
  end
  
  self.stack_trace = "Error: #{$!}\n#{$@.join("\n")}"
  self.save
end