Class: Traffic::Scraper

Inherits:
Object
  • Object
show all
Defined in:
lib/traffic-scraper.rb,
lib/traffic-scraper/version.rb

Constant Summary collapse

TRAFFIC_PAGE_URL = 
"http://cetsp1.cetsp.com.br/monitransmapa/agora/"
VERSION = 
"0.0.1"

Class Method Summary collapse

Class Method Details

.overall_traffic ⇒ Integer

Returns the amount of overall traffic we currently have

Returns:

  • (Integer) —

    the amount of traffic



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# File 'lib/traffic-scraper.rb', line 13

def overall_traffic
  page = Nokogiri::HTML(open(TRAFFIC_PAGE_URL))
  page.css("#lentidao b").inner_html.to_i
rescue
  raise CouldNotRetrievePageError
end

.zone_traffic ⇒ Hash

Returns the amount of overall traffic we currently have

Returns:

  • (Hash) —

    containing all the traffic information for all zones



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# File 'lib/traffic-scraper.rb', line 23

def zone_traffic
  page = Nokogiri::HTML(open(TRAFFIC_PAGE_URL))

  result_hash = {}

  { "Norte" => :north ,
    "Sul" => :south,
    "Leste" => :east,
    "Oeste" => :west,
    "Centro" => :downtown
  }.each do |zone, zone_translation|
    page.css("##{zone}Lentidao").inner_html =~ /^(\d+)\s*km$/

    result_hash[zone_translation] = $1.to_i
  end

  result_hash
rescue
  raise CouldNotRetrievePageError
end