Class: JMACode::WaterLevelStation

Inherits:
Struct
  • Object
show all
Defined in:
lib/jma_code/water_level_station.rb

Constant Summary collapse

CSV_ROW_SEP = 
"\r\n"
HEADERS = 
%i(code name river_name)
NUM_HEADER_ROWS = 
3

Class Attribute Summary collapse

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Class Attribute Details

.data ⇒ Object

Returns the value of attribute data.



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# File 'lib/jma_code/water_level_station.rb', line 15

def data
  @data
end

Instance Attribute Details

#code ⇒ Object

Returns the value of attribute code

Returns:

  • (Object) —

    the current value of code



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# File 'lib/jma_code/water_level_station.rb', line 6

def code
  @code
end

#name ⇒ Object

Returns the value of attribute name

Returns:

  • (Object) —

    the current value of name



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# File 'lib/jma_code/water_level_station.rb', line 6

def name
  @name
end

#river_name ⇒ Object

Returns the value of attribute river_name

Returns:

  • (Object) —

    the current value of river_name



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# File 'lib/jma_code/water_level_station.rb', line 6

def river_name
  @river_name
end

Class Method Details

.get ⇒ Object 



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# File 'lib/jma_code/water_level_station.rb', line 37

def get
  @data ||= load
end

.load(**args) ⇒ Object 



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# File 'lib/jma_code/water_level_station.rb', line 25

def load(**args)
  load_csv(**args) do |csv|
    csv.drop(NUM_HEADER_ROWS).map do |row|
      new(
        code: row[:code], 
        name: row[:name], 
        river_name: row[:river_name],
      )
    end
  end
end

.load_csv(version: "20240418") ⇒ Object 



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# File 'lib/jma_code/water_level_station.rb', line 17

def load_csv(version: "20240418")
  path = File.join(File.dirname(__FILE__), "../../data/#{version}_WaterLevelStation.csv")
  File.open(path) do |f|
    csv = CSV.new(f, headers: HEADERS, row_sep: CSV_ROW_SEP)
    yield(csv)
  end
end

Instance Method Details

#river ⇒ Object 



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# File 'lib/jma_code/water_level_station.rb', line 46

def river
  @river ||= AreaRiver.get.find{|r| r.code == river_code}
end

#river_code ⇒ Object 



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# File 'lib/jma_code/water_level_station.rb', line 42

def river_code
  code[0..9]
end