Module: Atco

Defined in:
lib/atco.rb

Constant Summary collapse

VERSION = 
'0.0.1'
@@methods = 
{
  :bank_holiday => 'QH',
  :operator => 'QP',
  :additional_location_info => 'QB',
  :location => 'QL',
  :destination => 'QT',
  :intermediate => 'QI',
  :origin => 'QO',
  :journey_header => 'QS'
}

Class Method Summary collapse

Class Method Details

.parse(file) ⇒ Object 



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# File 'lib/atco.rb', line 25

def parse(file)
  @path = File.expand_path(file)
  data = File.readlines(@path)
  
  objects = []
  current_journey = nil
  current_location = nil
  locations = []
  journeys = {}
  header = nil
  
  data.each do |line|
    if line == data.first
      header = parse_header(line)
      next
    end
    @@methods.each do |method,identifier|
      object = self.send("parse_#{method}", line)
      if object[:record_identity] && object[:record_identity] == identifier
        current_journey = object if object[:record_identity] && object[:record_identity] == @@methods[:journey_header]
        if object[:record_identity] && ( object[:record_identity] == @@methods[:location] ||  object[:record_identity] == @@methods[:additional_location_info] )
          if object[:record_identity] == @@methods[:location]
            current_location = object 
          else
            locations << Location.new(current_location, object)
          end
        end

        if current_journey
          if journeys[current_journey[:unique_journey_identifier]]
            journeys[current_journey[:unique_journey_identifier]] << object
          else
            journeys[current_journey[:unique_journey_identifier]] = [object]
          end
        end
        objects << object
      end
    end
  end
  return {:header => header, :locations => locations, :journeys => journeys}
end

.parse_additional_location_info(string) ⇒ Object 



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# File 'lib/atco.rb', line 95

def parse_additional_location_info(string)
  {
    :record_identity => string[0,2],
    :transaction_type => string[2,1],
    :location => string[3,12].strip,
    :grid_reference_easting => parse_value(string[15,8]),
    :grid_reference_northing => parse_value(string[23,8])
  }
end

.parse_bank_holiday(string) ⇒ Object 



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# File 'lib/atco.rb', line 77

def parse_bank_holiday(string)
  {
    :record_identity => string[0,2],
    :transaction_type => string[2,1],
    :date_of_bank_holiday => string[3,8]
  }
end

.parse_destination(string) ⇒ Object 



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# File 'lib/atco.rb', line 115

def parse_destination(string)
  {
    :record_identity => string[0,2],
    :location => string[2,12],
    :published_arrival_time => string[14,4],
    :bay_number => parse_value(string[18,3]),
    :timing_point_indicator => string[21,2],
    :fare_stage_indicator => string[23,2]
  }
end

.parse_header(string) ⇒ Object 



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# File 'lib/atco.rb', line 67

def parse_header(string)
  {
    :file_type => string[0,8],
    :version => "#{string[8,2].to_i}.#{string[10,2].to_i}",
    :file_originator => string[12,32].strip!,
    :source_product => string[44,16].strip!,
    :production_datetime => string[60,14]
  } 
end

.parse_intermediate(string) ⇒ Object 



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# File 'lib/atco.rb', line 126

def parse_intermediate(string)
  {
    :record_identity => string[0,2],
    :location => string[2,12],
    :published_arrival_time => string[14,4],
    :published_departure_time => string[18,4],
    :activity_flag => string[22,1],
    :bay_number => parse_value(string[23,3]),
    :timing_point_indicator => string[26,2],
    :fare_stage_indicator => string[28,2]
  }
end

.parse_journey_header(string) ⇒ Object 



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# File 'lib/atco.rb', line 150

def parse_journey_header(string)
  {
    :record_identity => string[0,2],
    :transaction_type => string[2,1],
    :operator => string[3,4].strip,
    :unique_journey_identifier => string[7,6],
    :first_date_of_operation => parse_value(string[13,8]),
    :last_date_of_operation => parse_value(string[21,8]),
    :operates_on_mondays => string[29,1],
    :operates_on_tuesdays => string[30,1],
    :operates_on_wednesdays => string[31,1],
    :operates_on_thursdays => string[32,1],
    :operates_on_fridays => string[33,1],
    :operates_on_saturdays => string[34,1],
    :operates_on_sundays => string[35,1],
    :school_term_time => parse_value(string[36,1]),
    :bank_holidays => parse_value(string[37,1]),
    :route_number => parse_value(string[38,4]),
    :running_board => parse_value(string[42,6]),
    :vehicle_type => parse_value(string[48,8]),
    :registration_number => parse_value(string[56,8]),
    :route_direction => string[64,1]
  }
end

.parse_location(string) ⇒ Object 



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# File 'lib/atco.rb', line 105

def parse_location(string)
  {
    :record_identity => string[0,2],
    :transaction_type => string[2,1],
    :location => parse_value(string[3,12]),
    :full_location => parse_value(string[15,48]),
    :gazetteer_code => string[63,1]
  }
end

.parse_operator(string) ⇒ Object 



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# File 'lib/atco.rb', line 85

def parse_operator(string)
  {
    :record_identity => string[0,2],
    :transaction_type => string[2,1],
    :operator => parse_value(string[3,4]),
    :operator_short_form => parse_value(string[7,24]),
    :operator_legal_name => parse_value(string[31,48])
  }
end

.parse_origin(string) ⇒ Object 



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# File 'lib/atco.rb', line 139

def parse_origin(string)
  {
    :record_identity => string[0,2],
    :location => string[2,12],
    :published_departure_time => string[14,4],
    :bay_number => parse_value(string[18,3]),
    :timing_point_indicator => string[21,2],
    :fare_stage_indicator => string[23,2]
  }
end

.parse_value(value) ⇒ Object 



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# File 'lib/atco.rb', line 175

def parse_value(value)
  return value.strip if value
end