Class: YahooContentAnalysis::Response

Inherits:
Object
  • Object
show all
Defined in:
lib/yahoo_content_analysis/response.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(response) ⇒ Response

Returns a new instance of Response.



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# File 'lib/yahoo_content_analysis/response.rb', line 8

def initialize(response)
  @raw  = response

  @language = nil
  @topics    = []
  @tags      = []
  @entities  = []
  @relations = []
  @locations = []

  parse(response) if response
end

Instance Attribute Details

#entities ⇒ Object

Returns the value of attribute entities.



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# File 'lib/yahoo_content_analysis/response.rb', line 6

def entities
  @entities
end

#language ⇒ Object

Returns the value of attribute language.



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# File 'lib/yahoo_content_analysis/response.rb', line 6

def language
  @language
end

#locations ⇒ Object

Returns the value of attribute locations.



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# File 'lib/yahoo_content_analysis/response.rb', line 6

def locations
  @locations
end

#raw ⇒ Object

Returns the value of attribute raw.



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# File 'lib/yahoo_content_analysis/response.rb', line 6

def raw
  @raw
end

#relations ⇒ Object

Returns the value of attribute relations.



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# File 'lib/yahoo_content_analysis/response.rb', line 6

def relations
  @relations
end

#tags ⇒ Object

Returns the value of attribute tags.



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# File 'lib/yahoo_content_analysis/response.rb', line 6

def tags
  @tags
end

#topics ⇒ Object

Returns the value of attribute topics.



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# File 'lib/yahoo_content_analysis/response.rb', line 6

def topics
  @topics
end

Instance Method Details

#extract_type(h) ⇒ Object 



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# File 'lib/yahoo_content_analysis/response.rb', line 74

def extract_type(h)
  # puts "extract_type: #{h.inspect}"
  return nil unless (h && h['type'])
  type = h['type'].is_a?(Array) ? h['type'].first : h['type']
  content = (type['content'] || '').split('/')
  content = (content[1] || content[0] || '').remove_formatting.titleize
  content.blank? ? nil : content
end

#get_language(lang) ⇒ Object 



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# File 'lib/yahoo_content_analysis/response.rb', line 68

def get_language(lang)
  return nil unless lang
  l = LanguageList::LanguageInfo.find(lang.split('-')[0].downcase)
  l.name
end

#humanize_topic(topic) ⇒ Object 



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# File 'lib/yahoo_content_analysis/response.rb', line 21

def humanize_topic(topic)
  (topic || '').titleize.remove_formatting
end

#parse(response = raw) ⇒ Object 



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# File 'lib/yahoo_content_analysis/response.rb', line 25

def parse(response=raw)
  return if (response.nil?)
  return if (!response.respond_to?(:body))
  return if (!response.body['query'] || !response.body['query']['results'])

  r = response.body['query']['results']
  @language = get_language(r['lang'])

  yahoo_categories = (r['yctCategories'] || {})['yctCategory'] || []
  yahoo_categories = [yahoo_categories] unless yahoo_categories.is_a?(Array)
  @topics = yahoo_categories.collect do |cat|
    {:name => humanize_topic(cat['content']), :score => cat['score'].to_f, :original=>cat['content']}
  end

  yahoo_entities = (r['entities'] || {})['entity'] || []
  yahoo_entities = [yahoo_entities] unless yahoo_entities.is_a?(Array)
  entities_hash = yahoo_entities.inject({}) do |hash, ent|
    # puts "entity: #{ent.inspect}"
    name = ent['text']['content']
    if hash.has_key?(name)
      existing = hash[name]
      existing[:score] = [existing[:score], ent['score'].to_f].max
    else
      type = extract_type(ent['types'])

      entity = {:name => ent['text']['content'], :score => ent['score'].to_f}
      entity[:type] = type if type
      entity[:wikipedia_url] = ent['wiki_url'] if ent['wiki_url']

      ## these aren't showing up in any results, so not worrying about them
      # if cat['related_entities'] && cat['related_entities']['wikipedia']
      # end

      hash[name] = entity
    end

    hash
  end

  @entities = entities_hash.values

end