Class: Arrow::TableLoader

Inherits:
Object
  • Object
show all
Defined in:
lib/arrow/table-loader.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(path, options = {}) ⇒ TableLoader

Returns a new instance of TableLoader.



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# File 'lib/arrow/table-loader.rb', line 26

def initialize(path, options={})
  @path = path
  @options = options
end

Class Method Details

.load(path, options = {}) ⇒ Object 



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# File 'lib/arrow/table-loader.rb', line 21

def load(path, options={})
  new(path, options).load
end

Instance Method Details

#load ⇒ Object 



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# File 'lib/arrow/table-loader.rb', line 31

def load
  path = @path
  path = path.to_path if path.respond_to?(:to_path)
  format = @options[:format] || guess_format(path) || :arrow

  custom_load_method = "load_as_#{format}"
  unless respond_to?(custom_load_method, true)
    available_formats = []
    (methods(true) | private_methods(true)).each do |name|
      match_data = /\Aload_as_/.match(name.to_s)
      if match_data
        available_formats << match_data.post_match
      end
    end
    message = "Arrow::Table load format must be one of ["
    message << available_formats.join(", ")
    message << "]: #{format.inspect}"
    raise ArgumentError, message
  end
  __send__(custom_load_method, path)
end