bootstrapping the Stanford NLP from JRuby

jruby_stanford_nlp.rb

require 'java'
include Java
require 'lib/stanford-parser/stanford-parser.jar'
include_class 'java.io.StringReader'
include_class 'edu.stanford.nlp.parser.lexparser.LexicalizedParser'
include_class 'edu.stanford.nlp.trees.PennTreebankLanguagePack'

module NLP
  PARSER = LexicalizedParser.new('lib/stanford-parser/englishPCFG.ser.gz')
  PTLP = PennTreebankLanguagePack.new

  def NLP.parse(sentence)
    toke = PTLP.getTokenizerFactory().getTokenizer(StringReader.new(sentence))
    wordlist = toke.tokenize()
    PARSER.parse(wordlist) ? PARSER.getBestParse() : nil
  end

end