Class: AWS::Flow::DecisionHelper Private

Inherits:
Object
  • Object
show all
Defined in:
lib/aws/decider/async_decider.rb

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

A decision helper for a workflow.

Class Attribute Summary collapse

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ DecisionHelper

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Creates a new, empty AWS::Flow::DecisionHelper instance.



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# File 'lib/aws/decider/async_decider.rb', line 113

def initialize
  @decision_map = {}
  @id = Hash.new {|hash, key| hash[key] = 0 }
  @scheduled_signals = {}
  @activity_scheduling_event_id_to_activity_id = {}
  @scheduled_activities = {}
  @scheduled_external_workflows = {}
  @scheduled_timers = {}
  @activity_options = {}
  @signal_initiated_event_to_signal_id = {}
  @child_initiated_event_id_to_workflow_id = {}
end

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(method_name, *args) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 170

def method_missing(method_name, *args)
  if [:[]=, :[]].include? method_name
    @decision_map.send(method_name, *args)
  end
end

Class Attribute Details

.completion_events ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 106

def completion_events
  @completion_events
end

.force_immediate_decision_timer ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 106

def force_immediate_decision_timer
  @force_immediate_decision_timer
end

.maximum_decisions_per_completion ⇒ Object (readonly)

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 106

def maximum_decisions_per_completion
  @maximum_decisions_per_completion
end

Instance Attribute Details

#activity_options ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 104

def activity_options
  @activity_options
end

#activity_scheduling_event_id_to_activity_id ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 104

def activity_scheduling_event_id_to_activity_id
  @activity_scheduling_event_id_to_activity_id
end

#child_initiated_event_id_to_workflow_id ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 104

def child_initiated_event_id_to_workflow_id
  @child_initiated_event_id_to_workflow_id
end

#decision_map ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 104

def decision_map
  @decision_map
end

#scheduled_activities ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 104

def scheduled_activities
  @scheduled_activities
end

#scheduled_external_workflows ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 104

def scheduled_external_workflows
  @scheduled_external_workflows
end

#scheduled_signals ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 104

def scheduled_signals
  @scheduled_signals
end

#scheduled_timers ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 104

def scheduled_timers
  @scheduled_timers
end

#signal_initiated_event_to_signal_id ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 104

def signal_initiated_event_to_signal_id
  @signal_initiated_event_to_signal_id
end

#workflow_context_data ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 104

def workflow_context_data
  @workflow_context_data
end

Instance Method Details

#get_activity_id(scheduled_id) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Returns the activity ID for a scheduled activity.

Parameters:

  • scheduled_id (String) —

    The scheduled activity ID.



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# File 'lib/aws/decider/async_decider.rb', line 182

def get_activity_id(scheduled_id)
  activity_scheduling_event_id_to_activity_id[scheduled_id]
end

#get_next_id(decision_target) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 127

def get_next_id(decision_target)
  id = (@id[decision_target] += 1)
  "#{decision_target}#{id}"
end

#get_next_state_machine_which_will_schedule(list) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 133

def get_next_state_machine_which_will_schedule(list)
  return if list.empty?
  ele = list.shift
  ele = list.shift until (list.empty? || ele.get_decision != nil)
  ele
end

#handle_decision_task_started_event ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 145

def handle_decision_task_started_event
  # In order to ensure that the events we have already scheduled do not
  # make a decision, we will process only maximum_decisions_per_completion
  # here.
  count = 0
  decision_list = @decision_map.values
  decision_state_machine = get_next_state_machine_which_will_schedule(decision_list)
  until decision_state_machine.nil?
    next_decision_state_machine = get_next_state_machine_which_will_schedule(decision_list)
    count += 1
    if (count == DecisionHelper.maximum_decisions_per_completion &&
        next_decision_state_machine != nil &&
        ! is_completion_event(next_decision_state_machine))
      break
    end
    decision_state_machine.consume(:handle_decision_task_started_event)
    decision_state_machine = next_decision_state_machine
  end
  if (next_decision_state_machine != nil &&
      count < DecisionHelper.maximum_decisions_per_completion)
    next_decision_state_machine.consume(:handle_decision_task_started_event)
  end
end

#is_completion_event(decision) ⇒ Object

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future. 



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# File 'lib/aws/decider/async_decider.rb', line 140

def is_completion_event(decision)
  DecisionHelper.completion_events.include? decision.get_decision[:decision_type].to_sym
end