Module: SharedCount::Cli

Defined in:
lib/shared_count/cli.rb,
lib/shared_count/cli/version.rb

Constant Summary collapse

JOIN_TIMEOUT =

seconds

5
SLEEP_TIME =

seconds

2.5
MAX_RETRIES = 
3
LINES_PER_ITERATION = 
1000
MAX_CONCURRENCY = 
50
VERSION = 
"0.0.2"

Class Method Summary collapse

Class Method Details

.run(lines) ⇒ Object 



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# File 'lib/shared_count/cli.rb', line 21

def run(lines)
  configure_shared_count_client

  iterations, mod =  lines.length.divmod(LINES_PER_ITERATION)
  iterations += 1 if mod > 0
  results = Queue.new

  iterations.times do |iteration|
    logger.error "Iteration ##{iteration + 1}"
    queue = Queue.new
    from = LINES_PER_ITERATION * iteration
    lines[from, LINES_PER_ITERATION].each { |url| queue.push(url) }
    thread_count = [MAX_CONCURRENCY, lines.length].min

    threads = (0...thread_count).map do |thread|
      Thread.new(thread) do |thread|
        error = 0

        url = begin
                queue.pop(true)
              rescue ThreadError; end

        while url do
          url.chomp!
          uri = URI(url)
          host = uri.host || url[/\Ahttps?:\/\/([^\/]+)/, 1]
          url = "#{uri.scheme}://#{host}"

          response = nil
          begin
            response = SharedCountApi::Client.new(url).response
          rescue SharedCountApi::Error
            logger.error "[Thread ##{thread}] - error while processing '#{url}'"
          rescue => err
            logger.error "[Thread ##{thread}] - error while processing '#{url}', retry: ##{error} - #{err.inspect}"
            error += 1
            sleep(SLEEP_TIME)
            if error <= MAX_RETRIES
              retry
            else
              queue.push(url)
              break
            end
          else
            error = 0
          end

          if response
            logger.debug "[Thread ##{thread}] - #{url}"

            facebook_metrics = response.delete("Facebook")
            facebook_metrics = {} unless facebook_metrics.is_a?(Hash)
            values = response.values.unshift(url)
            results.push(values.concat(facebook_metrics.values))
          else
            logger.warn "[Thread ##{thread}] - no response for '#{url}'"
          end

          url = begin
                  queue.pop(true)
                rescue ThreadError; end
        end
      end
    end

    threads.each do |thread|
      begin
        thread.join(JOIN_TIMEOUT)
      rescue => err
        logger.error "[Thread ##{thread}] - error while joining main thread: #{err.inspect}"
        logger.error "[Thread ##{thread}] - #{err.backtrace.join("\n")}"
      end
    end
  end


  CSV.generate do |csv|
    csv << %w(URL StumbleUpon Reddit Delicious GooglePlusOne Buzz Twitter Diggs Pinterest LinkedIn commentsbox_count click_count total_count comment_count like_count share_count)
    csv << []
    loop do
      begin
        arr = results.pop(true)
        csv << arr
      rescue ThreadError
        break
      end
    end
  end
end