Class: Embulk::Input::GoogleSpreadsheets::RecordTypecaster

Inherits:
Object
  • Object
show all
Defined in:
lib/embulk/input/google_spreadsheets/record_typecaster.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(task) ⇒ RecordTypecaster

Returns a new instance of RecordTypecaster.



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# File 'lib/embulk/input/google_spreadsheets/record_typecaster.rb', line 11

def initialize(task)
  @column_names = task['columns'].map{|c| c['name']}
  @column_details = configure_column_details(task)
end

Instance Attribute Details

#column_details ⇒ Object (readonly)

Returns the value of attribute column_details.



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# File 'lib/embulk/input/google_spreadsheets/record_typecaster.rb', line 9

def column_details
  @column_details
end

#column_names ⇒ Object (readonly)

Returns the value of attribute column_names.



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# File 'lib/embulk/input/google_spreadsheets/record_typecaster.rb', line 9

def column_names
  @column_names
end

Instance Method Details

#configure_column_details(task) ⇒ Object 



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# File 'lib/embulk/input/google_spreadsheets/record_typecaster.rb', line 16

def configure_column_details(task)
  _column_details = task['columns'].dup.each_with_index.inject({}) do |details, column_with_index|
    c, i = *column_with_index
    details.tap do |ds|
      ds[c['name']] = {}.tap do |d|
        d['index'] = i
        d['name'] = c['name']
        d['type'] = c['type'].to_sym
        d['format'] = c['format']
        d['timezone'] = c['timezone']
        d['typecast'] = TypecastFactory.create(c['typecast'], task)
      end
    end
  end

  logger.debug { "`embulk-input-google_spreadsheets`: configured column details '#{_column_details.to_json}'"}
  _column_details
end

#logger ⇒ Object 



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# File 'lib/embulk/input/google_spreadsheets/record_typecaster.rb', line 35

def logger
  GoogleSpreadsheets.logger
end

#transform_by_columns(record) ⇒ Object 



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# File 'lib/embulk/input/google_spreadsheets/record_typecaster.rb', line 39

def transform_by_columns(record)
  column_names.map do |n|
    d = column_details[n]
    typecast = d['typecast']
    value = record[d['index']]
    type = d['type']

    begin
      case type
      when :string
        typecast.as_string(value)
      when :long
        typecast.as_long(value)
      when :double
        typecast.as_double(value)
      when :boolean
        typecast.as_boolean(value)
      when :timestamp
        typecast.as_timestamp(value, d['format'], d['timezone'])
      when :json
        typecast.as_json(value)
      else
        raise ConfigError.new("`google_spreadsheets`: Unsupported type `#{type}`")
      end
    rescue => e
      # for adding column information
      raise TypecastError.new(e, ", column: #{n}, column_detail: #{d.to_json}")
    end
  end
end