Class: Serialbench::Serializers::Html::NokogiriSerializer

Inherits:
BaseHtmlSerializer show all
Defined in:
lib/serialbench/serializers/html/nokogiri_serializer.rb

Instance Method Summary collapse

Methods inherited from BaseHtmlSerializer

#features, format, #from_hash, #generate

Methods inherited from BaseSerializer

#generate, #get_version, #initialize, #require_library, #stream_parse, #supports?

Constructor Details

This class inherits a constructor from Serialbench::Serializers::BaseSerializer

Instance Method Details

#available? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/serialbench/serializers/html/nokogiri_serializer.rb', line 30

def available?
  return @available if defined?(@available)

  @available = begin
    require 'nokogiri'
    Nokogiri::HTML5('<p>probe</p>')
    true
  rescue StandardError, LoadError => e
    warn "#{name} unavailable: #{e.class}: #{e.message}"
    false
  end
end

#capabilities ⇒ Object 



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# File 'lib/serialbench/serializers/html/nokogiri_serializer.rb', line 13

def capabilities
  super | Set.new(i[xpath html5])
end

#library_require_name ⇒ Object 



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# File 'lib/serialbench/serializers/html/nokogiri_serializer.rb', line 50

def library_require_name
  'nokogiri'
end

#name ⇒ Object 



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# File 'lib/serialbench/serializers/html/nokogiri_serializer.rb', line 9

def name
  'nokogiri'
end

#parse(html_string) ⇒ Object 



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# File 'lib/serialbench/serializers/html/nokogiri_serializer.rb', line 17

def parse(html_string)
  require 'nokogiri'
  Nokogiri::HTML5(html_string)
end

#serialize_document(document) ⇒ Object 



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# File 'lib/serialbench/serializers/html/nokogiri_serializer.rb', line 26

def serialize_document(document)
  document.to_html
end

#version ⇒ Object 



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# File 'lib/serialbench/serializers/html/nokogiri_serializer.rb', line 43

def version
  return 'unknown' unless available?

  require 'nokogiri'
  Nokogiri::VERSION
end

#xpath_query(document, expression) ⇒ Object 



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# File 'lib/serialbench/serializers/html/nokogiri_serializer.rb', line 22

def xpath_query(document, expression)
  document.xpath(expression).size
end