class Kisyo::Daily
Constants
- CACHE_SIZE
Attributes
cache[R]
location[R]
Public Class Methods
new(location)
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# File lib/kisyo/daily.rb, line 8 def initialize(location) @location = location @cache = Cache.new end
Public Instance Methods
at(date)
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# File lib/kisyo/daily.rb, line 13 def at(date) key = [date.year, date.month, date.day].join(',') if value = cache.get(key) return value end url = 'http://www.data.jma.go.jp/obd/stats/etrn/view/daily_s1.php?prec_no=%i&block_no=%i&year=%i&month=%i&day=01&view=p1' % [ location.prefecture_id, location.block_id, date.year, date.month ] content = open(url).read doc = Nokogiri::HTML(content) days = doc.css('div.a_print') raise WeatherInformationNotAvailable if days.size == 0 days.each do |el| tr = el.parent.parent values = tr.css('td').map(&:text) k = [date.year, date.month, values[0]].join(',') cache.set(k, Element::Day.new(*values[1 .. -1])) end cache.get(key) end