Module: Chakin::Downloader

Included in:
Vectors
Defined in:
lib/chakin-rb/chakin.rb

Instance Method Summary collapse

Instance Method Details

#download(number: nil, name: '', save_dir: './') ⇒ Object

Download pre-trained word vector



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# File 'lib/chakin-rb/chakin.rb', line 16

def download(number: nil, name: '', save_dir: './')
  df = load_datasets

  row = if !number.nil?
          df.row[number]
        elsif name
          df.df.where(df['Name'].eq(name))
        end

  url = row['URL']
  raise 'The word vector you specified was not found. Please specify correct name.' if url.nil?

  progressbar = ProgressBar.create
  file_name = url.split('/')[-1]

  File.mkdir(save_dir) unless File.exist?(save_dir)

  save_path = File.join(save_dir, file_name)

  f = File.open(save_path, 'wb')
  begin
    my_uri = URI.parse(url)

    Net::HTTP.start(my_uri.host) do |http|
      http.request_get(my_uri.path) do |resp|
        total_size = resp.content_length
        progressbar.total = total_size

        resp.read_body do |segment|
          progressbar.progress += segment.size
          f.write(segment)
        end
      end
    end
  ensure
    f.close
  end

  save_path
end

#load_datasets(path = File.join(__dir__, 'datasets.csv')) ⇒ Object 



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# File 'lib/chakin-rb/chakin.rb', line 10

def load_datasets(path = File.join(__dir__, 'datasets.csv'))
  Daru::DataFrame.from_csv(path)
end

#search(lang = '') ⇒ Object 



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# File 'lib/chakin-rb/chakin.rb', line 57

def search(lang = '')
  df = load_datasets
  if lang == ''
    puts df.inspect
  else
    rows = df.where(df['Language'].eq(lang))
    puts rows['Name', 'Dimension', 'Corpus', 'VocabularySize', 'Method', 'Language', 'Author'].inspect
  end
end