# File languages-statistics.rb, line 115
        def execute()
                @status = 0
                time_started = Time.now.utc
                date_time_format = DateTimeFormat.new()
                logger = Logger.new([$stderr, File.new('log.txt', 'w')])
                logger.log('現在の統計ページをもとにリソースファイルのlanguage要素を出力')
                logger.log('開始しました。 ' + date_time_format.format(time_started) )
                config = Config.new()
                current_page_file_name = 'current-page.txt'
                resource = Resource.new(logger)
                bot = WikiBot.new(config)
                begin
                        bot.login
                rescue MediaWikiApiError => error
                        logger.log(error.to_s)
                        @status = 1
                        return
                end
                current_revision_text = bot.current_revision_text(config.target_statistics_page)
                bot.logout
                output_file_name = 'resource-languages.xml'
                logger.log('出力ファイル: ' + output_file_name )
                output = File.new(output_file_name, 'w')
#               output = $stdout
                WikiTable.new(current_revision_text, resource, logger).rows.each do |row|
                        output.puts('<language><code>' + row.code + '</code>' +
                                        '<description>' + row.description + '</description>' +
                                        '<articleOfWiki>' + row.article_of_wiki + '</articleOfWiki>' +
                                        '<englishDescription>' + row.english_description + '</englishDescription>' +
                                        '<score>' + row.score + '</score></language>')
                        output.flush
                end
                output.close
                process_launcher = ProcessLauncher.new
                if (config.text_viewer != nil) then
                        process_launcher.launch(config.text_viewer, output_file_name, 'テキストビューワの起動に失敗しました: ')
                end
                time_ended = Time.now.utc
                logger.log('終了しました。 ' + date_time_format.format(time_ended))
                logger.log('要した時間: ' + (time_ended - time_started).to_s + ' 秒')
        end