initial check-in -- still added specs to test

config/yahoo_service_config.yml

@@ -0,0 +1,2 @@
+:hostname: http://search.yahooapis.com
+:endpoint: ContentAnalysisService/V1/termExtraction

lib/yahoo-term-extractor.rb

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+
+
+require 'rubygems'
+
+require 'yaml'
+require 'net/http'
+
+gem 'json'
+require 'json'
+
+require 'yahoo/config'
+require 'yahoo/term_extractor'

lib/yahoo/config.rb

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+
+module Yahoo
+  module Config
+    def app_id()
+      config[:app_id]
+    end
+
+    def output_format()
+      config[:output_format] || :json
+    end
+
+    def endpoint_uri()
+      if @endpoint_uri.nil?
+        raise "Configuration Error - missing hostname" if config[:hostname].nil?
+        raise "Configuration Error - missing endpoint" if config[:endpoint].nil?
+        @endpoint_uri = URI.parse("#{config[:hostname]}/#{config[:endpoint]}".gsub(/^\:\/\//, '/'))
+      end
+      @endpoint_uri
+    end
+
+    private
+    def config()
+      @default_config ||= YAML.load_file(File.join(File.dirname(__FILE__), '..', '..', 'config', 'yahoo_service_config.yml'))            
+      # try to load from RAILS_ROOT
+      if @config.nil?
+        config = YAML.load_file(File.join(RAILS_ROOT, 'config', 'yahoo_service_config.yml'))
+        @config = @default_config.merge(config)
+      end
+      @config        
+    end
+
+  end
+end

lib/yahoo/term_extractor.rb

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+require 'logger'
+
+module Yahoo
+  class RemoteServerError < RuntimeError; end
+  class ConfigurationError < RuntimeError; end
+
+  class TermExtractor
+    extend Yahoo::Config
+
+    # Extracts terms from content provided. Provide an optional query to provide context for your terms.
+    def self.find_terms(content, query = nil)
+      debug { "post_form(#{endpoint_uri()}, #{query_hash(content, query).inspect})" }
+      response = Net::HTTP.post_form(endpoint_uri(), query_hash(content, query))
+      raise Yahoo::RemoteServerError unless response.code == "200"
+      results = JSON.parse(response.body)['ResultSet']['Result'] rescue []
+    end
+
+    private
+
+    def self.query_hash(content, query)
+      raise Yahoo::ConfigurationError if app_id().nil?
+      { 'appid' => app_id(),
+        'output' => output_format().to_s,
+        'context' => content,
+        'query' => query }
+    end
+
+    def self.debug()
+      Logger.new(STDOUT).debug(yield) if ENV['DEBUG']
+    end
+  end
+end

test/live_test.rb

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+$:.push File.join(File.dirname(__FILE__), '..', 'lib')
+
+require 'rubygems'
+require 'test/unit'
+require 'yahoo-term-extractor'
+
+
+RAILS_ROOT = File.dirname(__FILE__) unless defined?(RAILS_ROOT)
+
+class LiveTest < Test::Unit::TestCase
+  def test_get_terms
+#    results = Yahoo::TermExtractor.get_terms(
+text = 'Diabetes treatment plans consist of a healthy diet, exercise, medications and sleep'
+#text = "i testd this morning  and it was positive but than it disappeared in 20 mins. Is it still positive? and than i testd again later this mornin and it waas very very faint and it wasnt pink it was ghost like but it appeared before the 5 mins. Am i pregnant?"
+    results = Yahoo::TermExtractor.find_terms(text)
+    require 'pp'
+    pp results
+    assert_not_nil results
+  end
+end