Class: AwsWhitepaperDownloader::Crawler

Inherits:
Object
  • Object
show all
Defined in:
lib/aws_whitepaper_downloader/crawler.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Crawler

Returns a new instance of Crawler.



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# File 'lib/aws_whitepaper_downloader/crawler.rb', line 7

def initialize
end

Instance Method Details

#run ⇒ Object 



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# File 'lib/aws_whitepaper_downloader/crawler.rb', line 10

def run
  count = 0
  start = nil
  output = {}
  flag = 0
  current_hash = nil
  pdfs = nil
  title = nil
  doc = Nokogiri::HTML( open("https://aws.amazon.com/whitepapers/"))
  doc.css(".content > .title-wrapper, .content > .row-builder").each do |div|

    # div == title-wrapper
    if div['class'].match("title-wrapper")
      title = parse_title( div )
      output[title] ||= {}
      current_hash = output[title]
    end

    # div == row-builder
    next unless current_hash
    next unless div['class'].match("row-builder")
    # nested
    if div.css('h3').size > 0
      current_hash['type'] = 'nested'
      sub_divs = div.css(
        ".wrapper > .columns > .parsys > .columnbuilder,
        .wrapper > .columns > .parsys > .title-wrapper"
      )
      sub_divs.each do |sub_div|
        if subtitle = parse_subtitle( sub_div )
          current_hash[subtitle] ||= {}
          pdfs = current_hash[subtitle]
        end
        pdfs = parse_pdfs(sub_div, pdfs)
      end
    # normal
    else
      current_hash['type'] = 'normal'
      pdfs = output[title]
      pdfs = parse_pdfs(div, pdfs)
    end

  end
  return output
end