Method: OpenC3::DecomMicroservice#limits_change_callback

Defined in:
lib/openc3/microservices/decom_microservice.rb

#limits_change_callback(packet, item, old_limits_state, value, log_change) ⇒ Object

Called when an item in any packet changes limits states.

Parameters:

  • packet (Packet) —

    Packet which has had an item change limits state

  • item (PacketItem) —

    The item which has changed limits state

  • old_limits_state (Symbol) —

    The previous state of the item. See PacketItemLimits#state

  • value (Object) —

    The current value of the item

  • log_change (Boolean) —

    Whether to log this limits change event



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# File 'lib/openc3/microservices/decom_microservice.rb', line 119

def limits_change_callback(packet, item, old_limits_state, value, log_change)
  return if @cancel_thread
  packet_time = packet.packet_time
  if value
    message = "#{packet.target_name} #{packet.packet_name} #{item.name} = #{value} is #{item.limits.state}"
  else
    message = "#{packet.target_name} #{packet.packet_name} #{item.name} is disabled"
  end
  message << " (#{packet.packet_time.sys.formatted})" if packet_time

  time_nsec = packet_time ? packet_time.to_nsec_from_epoch : Time.now.to_nsec_from_epoch
  if log_change
    case item.limits.state
    when :BLUE, :GREEN, :GREEN_LOW, :GREEN_HIGH
      @logger.info message
    when :YELLOW, :YELLOW_LOW, :YELLOW_HIGH
      @logger.warn(message, type: Logger::NOTIFICATION)
    when :RED, :RED_LOW, :RED_HIGH
      @logger.error(message, type: Logger::ALERT)
    end
  end

  # The openc3_limits_events topic can be listened to for all limits events, it is a continuous stream
  event = { type: :LIMITS_CHANGE, target_name: packet.target_name, packet_name: packet.packet_name,
            item_name: item.name, old_limits_state: old_limits_state.to_s, new_limits_state: item.limits.state.to_s,
            time_nsec: time_nsec, message: message.to_s }
  LimitsEventTopic.write(event, scope: @scope)

  if item.limits.response
    begin
      item.limits.response.call(packet, item, old_limits_state)
    rescue Exception => e
      @error = e
      @logger.error "#{packet.target_name} #{packet.packet_name} #{item.name} Limits Response Exception!"
      @logger.error "Called with old_state = #{old_limits_state}, new_state = #{item.limits.state}"
      @logger.error e.formatted
    end
  end
end