Class: MINT::SequentialMapping

Inherits:
ComplementaryMapping show all
Defined in:
lib/MINT-core/mapping/sequential_mapping.rb

Instance Attribute Summary

Attributes inherited from Mapping

#state_callback

Instance Method Summary collapse

Methods inherited from ComplementaryMapping

#start

Methods inherited from Mapping

#actions, #actions_succeeded_callback, #activated_callback, #call_actions_succeeded_callbacks, #call_activated_callbacks, #id, #initialize, #mapping_name, #observations, #start, #startAction, #stop_observations

Constructor Details

This class inherits a constructor from MINT::Mapping

Instance Method Details

#cb_activate_action(element, in_state, result, id) ⇒ Object

function is called every time an observation has been fulfilled



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# File 'lib/MINT-core/mapping/sequential_mapping.rb', line 17

def cb_activate_action(element,in_state,result,id)
#      @state_callback.call(@mapping[:name], {:id => id, :state => in_state.to_s.to_sym}) if @state_callback
  @state_callback.call(@mapping[:name], {:id => id, :element => element, :result => result, :state => in_state.to_s.to_sym}) if @state_callback

  @observation_state[element] = in_state

  # ignore incoming updates of a previous observation that is still subscribed
  return if not observations[@active_observation].element.eql? element

  if in_state == :fail
        observations[@active_observation].stop # unsubscribe observation
         restart # restart mapping
         return
       end
  if in_state
    @observation_results.merge! result
    observations[@active_observation].stop # unsubscribe observation
    @active_observation += 1

    # check if already all other observations have been matched
    if observations.length <= @active_observation
      startAction(@observation_results).actions_succeeded_callback { |m,result|
                  state = :failed
                  state = :succeeded if result

                  @state_callback.call(@mapping[:name], {:id => @mapping[:id], :mapping_state => state}) if @state_callback

        # add callback for action if succeeded & implement parallel action execution
        m.restart

      }
    else # start next observation
      observations[@active_observation].start(@observation_results,self.method(:cb_activate_action))
    end
  end
end

#restart ⇒ Object 



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# File 'lib/MINT-core/mapping/sequential_mapping.rb', line 54

def restart
  @active_observation = 0
  super
  self
end

#start_observations ⇒ Object 



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# File 'lib/MINT-core/mapping/sequential_mapping.rb', line 6

def start_observations
  @active_observation = 0

  observations[@active_observation].start(@observation_results,self.method(:cb_activate_action)).is_subscribed_callback { |observation|
    @observation_state[observation.element] = false
    @state_callback.call(@mapping[:name], {:id => observation.id, :state => :activated}) if @state_callback
    call_activated_callbacks
  }
end