Module: SemanticExtraction::Alchemy

Includes:
UtilityMethods
Defined in:
lib/semantic_extraction/extractors/alchemy.rb

Constant Summary collapse

STARTER = 
"http://access.alchemyapi.com/calls/"

Class Method Summary collapse

Methods included from UtilityMethods

included

Class Method Details

.extract_text(text) ⇒ Object 



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# File 'lib/semantic_extraction/extractors/alchemy.rb', line 45

def self.extract_text(text)
  prefix = is_url?(text) ? "url" : "html"
  endpoint = (prefix == "url" ? "URL" : "HTML") + "GetText"
  url = STARTER + prefix + "/" + endpoint
  raw = post(url, text, prefix)      
  output_text(raw)
end

.find_entities(text) ⇒ Object 



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# File 'lib/semantic_extraction/extractors/alchemy.rb', line 23

def self.find_entities(text)
  prefix = is_url?(text) ? "url" : "text"
  endpoint = (prefix == "url" ? "URL" : "Text") + "GetRankedNamedEntities"
  url = STARTER + prefix + "/" + endpoint
  raw = post(url, text, prefix)
  output_entities(raw)
end

.find_keywords(text) ⇒ Object 



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# File 'lib/semantic_extraction/extractors/alchemy.rb', line 6

def self.find_keywords(text)
  prefix = is_url?(text) ? "url" : "text"
  endpoint = (prefix == "url" ? "URL" : "Text") + "GetKeywords"
  url = STARTER + prefix + "/" + endpoint
  raw = post(url, text, prefix)
  output_keywords(raw)
end

.output_entities(raw) ⇒ Object 



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# File 'lib/semantic_extraction/extractors/alchemy.rb', line 31

def self.output_entities(raw)
  h = Nokogiri::XML(raw)
  entities = []
  (h/"entities entity").each do |p|
    hashie = Hash.from_xml(p.to_s)["entity"]
    typer = hashie.delete("type")
    if typer
      hashie["entity_type"] = typer
    end
    entities << OpenStruct.new(hashie)
  end
  return entities
end

.output_keywords(raw) ⇒ Object 



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# File 'lib/semantic_extraction/extractors/alchemy.rb', line 14

def self.output_keywords(raw)
  h = Nokogiri::XML(raw)
  keywords = []
  (h/"keywords keyword").each do |p|
    keywords << p.text
  end
  return keywords
end

.output_text(raw) ⇒ Object 



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# File 'lib/semantic_extraction/extractors/alchemy.rb', line 53

def self.output_text(raw)
  h = Nokogiri::XML(raw)
  return (h/"text").first.inner_html
end