Class: LittleMonster::Core::Job::Orchrestator

Inherits:
Object
  • Object
show all
Defined in:
lib/little_monster/core/job_orchrestator.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(job) ⇒ Orchrestator

Returns a new instance of Orchrestator.



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# File 'lib/little_monster/core/job_orchrestator.rb', line 6

def initialize(job)
  @job = job
  @logger = @job.logger
end

Instance Attribute Details

#job ⇒ Object (readonly)

Returns the value of attribute job.



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# File 'lib/little_monster/core/job_orchrestator.rb', line 4

def job
  @job
end

#logger ⇒ Object (readonly)

Returns the value of attribute logger.



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# File 'lib/little_monster/core/job_orchrestator.rb', line 3

def logger
  @logger
end

Instance Method Details

#abort_job(error) ⇒ Object

Methods that work both on tasks and callbacks



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# File 'lib/little_monster/core/job_orchrestator.rb', line 138

def abort_job(error)
  logger.debug 'notifiying abort...'

  if @job.callback_running?
    logger.info "[type:finish_callback] [status:error] data: #{@job.data.to_h[:outputs]}"
    @job.notify_callback :error, exception: error

    # if callback is not on_error, raise exception to run on_error
    if @job.current_action != :on_error
      # set status on pending because we are sending the job back to the queue
      @job.status = :pending
      raise CallbackFailedError, '[type:callback_fail_error]'
    end
  else
    @job.notify_task :error, exception: error
    logger.info "[type:finish_task] [status:error] data: #{@job.data.to_h[:outputs]}"
  end

  @job.status = :error
end

#build_task(task_symbol) ⇒ Object 



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# File 'lib/little_monster/core/job_orchrestator.rb', line 114

def build_task(task_symbol)
  task = @job.task_class_for(task_symbol).new(@job.data)
  task.send(:set_default_values,
            data: @job.data,
            job_id: @job.id,
            job_logger: logger,
            cancelled_callback: @job.method(:is_cancelled?),
            retries: @job.retries,
            max_retries: @job.max_retries,
            retry_callback: @job.method(:retry?))
  task
end

#cancel ⇒ Object 



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# File 'lib/little_monster/core/job_orchrestator.rb', line 127

def cancel
  logger.debug 'notifiying cancel...'

  @job.notify_task :cancelled
  logger.info "[type:finish_task] [status:cancelled] data: #{@job.data.to_h[:outputs]}"

  @job.status = :cancelled
end

#do_retry(error) ⇒ Object 



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# File 'lib/little_monster/core/job_orchrestator.rb', line 173

def do_retry(error)
  if @job.retry?
    logger.debug "Retry ##{@job.retries} of #{@job.max_retries}"

    @job.retries += 1

    logger.debug 'notifiying retry'
    if @job.callback_running?
      @job.notify_callback :pending, retries: @job.retries, exception: error
      logger.info '[type:callback_retry]'
    else
      @job.notify_task :pending, retries: @job.retries, exception: error
      logger.info '[type:task_retry]'
    end

    @job.status = :pending

    logger.info "[type:job_retry] data: #{@job.data.to_h[:outputs]}"
    raise JobRetryError, "doing retry #{@job.retries} of #{@job.max_retries}"
  else
    logger.debug 'job has reached max retries'

    if @job.callback_running?
      logger.info '[type:callback_max_retries]'
    else
      logger.info '[type:task_max_retries]'
    end

    logger.info "[type:job_max_retries] [retries:#{@job.max_retries}]"
    abort_job(error)
  end
end

#handle_error(error) ⇒ Object 



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# File 'lib/little_monster/core/job_orchrestator.rb', line 159

def handle_error(error)
  raise error if LittleMonster.env.development?
  logger.error "[type:error] [error_type:#{error.class}][message:#{error.message.dump}] \n #{error.backtrace.to_a.join("\n\t")}"

  @job.error = @job.serialize_error error

  if error.is_a?(FatalTaskError) || error.is_a?(NameError)
    logger.debug 'error is fatal, aborting run'
    return abort_job(error)
  end

  do_retry(error)
end

#run ⇒ Object 



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# File 'lib/little_monster/core/job_orchrestator.rb', line 11

def run
  # notifies status as running and then restores old_status if it is an ending status
  last_status = @job.status
  @job.status = :running
  @job.notify_status

  if Job::ENDED_STATUS.include? last_status
    @job.status = last_status
  else
    run_tasks

    logger.default_tags.delete(:current_task)
    # reset retries so retries don't mix between tasks and callbacks
    @job.retries = 0
  end

  run_callback
  logger.info "[type:job_finish] [status:#{@job.status}] data: #{@job.data.to_h[:outputs]}"
ensure
  options = {}
  options[:data] = @job.data if @job.ended_status?
  @job.notify_status options
end

#run_callback ⇒ Object 



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# File 'lib/little_monster/core/job_orchrestator.rb', line 84

def run_callback
  @job.current_action = @job.callback_to_run

  return if @job.current_action.nil?

  logger.default_tags[:callback] = @job.current_action
  @job.notify_callback :running

  logger.info "[type:start_callback] data: #{@job.data.to_h[:outputs]}"
  begin
    logger.default_tags[:type] = 'callback_log'
    @job.public_send(@job.current_action)
  ensure
    logger.default_tags.delete(:type)
  end
  logger.info "[type:finish_callback] [status:success] data: #{@job.data.to_h[:outputs]}"

  @job.notify_callback :success

  @job.current_action = nil
  @job.retries = 0
  logger.default_tags.delete(:callback)
rescue APIUnreachableError => e
  logger.error "[type:api_unreachable] [message:#{e.message.dump}]"
  raise e
rescue StandardError => e
  logger.debug "[type:standard_error] an error was catched with [message:#{e.message.dump}]"
  handle_error e
end

#run_tasks ⇒ Object 



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# File 'lib/little_monster/core/job_orchrestator.rb', line 35

def run_tasks
  @job.tasks_to_run.each do |task_name|
    @job.current_action = task_name
    @job.notify_task :running

    logger.default_tags[:current_task] = @job.current_action
    logger.info "[type:start_task] data: #{@job.data.to_h[:outputs]}"

    begin
      raise LittleMonster::CancelError if @job.is_cancelled?

      task = build_task(task_name)
      task.run

      # data is sent only on task success
      @job.notify_task :success, data: @job.data

      logger.info "[type:finish_task] [status:success] data: #{@job.data.to_h[:outputs]}"

      if @job.mock?
        @job.runned_tasks[task_name] = {}
        @job.runned_tasks[task_name][:instance] = task
        @job.runned_tasks[task_name][:data] = @job.data.to_h[:outputs].to_h.dup
      end
    rescue APIUnreachableError => e
      logger.error "[type:api_unreachable] [message:#{e.message.dump}]"
      raise e
    rescue CancelError => e
      logger.info '[type:cancel] job was cancelled'
      cancel
      return
    rescue StandardError => e
      logger.debug "[type:standard_error] an error was catched with [message:#{e.message.dump}]"
      begin
        task.error e unless e.is_a? NameError
      rescue StandardError => task_error
      ensure
        handle_error task_error || e
        return
      end
    end

    @job.retries = 0 # Hago esto para que despues de succesful un task resete retries
  end

  @job.current_action = nil
  @job.status = :success
end