Class: Lakes::Texas::WaterDataParser

Inherits:
Object
  • Object
show all
Includes:
Helper
Defined in:
lib/lakes/texas/water_data_parser.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Helper

#cleanup_data, #cleanup_raw_text, #convert_relative_href, #http_get, #process_data_table

Constructor Details

#initialize(text) ⇒ WaterDataParser

Returns a new instance of WaterDataParser.



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# File 'lib/lakes/texas/water_data_parser.rb', line 11

def initialize(text)
  @raw_text = text
  # File.write("test/data/water_data/Abilene.txt", @raw_text)
  # puts "WaterDataParser: raw_text: #{@raw_text}"
  parse
end

Instance Attribute Details

#conservation_pool_elevation_in_ft_msl ⇒ Object (readonly)

Returns the value of attribute conservation_pool_elevation_in_ft_msl.



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# File 'lib/lakes/texas/water_data_parser.rb', line 8

def conservation_pool_elevation_in_ft_msl
  @conservation_pool_elevation_in_ft_msl
end

#percentage_full ⇒ Object (readonly)

Returns the value of attribute percentage_full.



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# File 'lib/lakes/texas/water_data_parser.rb', line 9

def percentage_full
  @percentage_full
end

#raw_text ⇒ Object (readonly)

Returns the value of attribute raw_text.



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# File 'lib/lakes/texas/water_data_parser.rb', line 7

def raw_text
  @raw_text
end

Instance Method Details

#parse ⇒ Object 



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# File 'lib/lakes/texas/water_data_parser.rb', line 18

def parse
  html_doc = Nokogiri::HTML(@raw_text)
  cons_pool_elevation_header_element = html_doc.xpath('//td[contains(text(), "Conservation pool elevation")]').first
  cons_pool_elevation_root = cons_pool_elevation_header_element.try(:next_element)
  @conservation_pool_elevation_in_ft_msl = cleanup_raw_text(cons_pool_elevation_root.try(:text))
    .try(:match, /([0-9,\.]+)/)
    .try(:captures)
    .try(:first)
    .try(:gsub, ',', '')
    .try(:to_f)

  percentage_full_element = cleanup_raw_text(html_doc.css('div.page-title h2 small').try(:text))
  @percentage_full = percentage_full_element
    .try(:match, /^([0-9]+\.?[0-9]+)/)
    .try(:captures)
    .try(:first)
    .try(:to_f)
end