1 files changed, 43 insertions, 0 deletions
diff --git a/lib/feature.rb b/lib/feature.rb
new file mode 100644
index 0000000..c0729a7
--- /dev/null
+++ b/lib/feature.rb
@@ -0,0 +1,43 @@
+module OpenTox
+  class Feature
+    include OpenTox
+
+    def self.find(uri, subjectid=nil)
+      return nil unless uri   
+      feature = Feature.new uri
+      if (CONFIG[:yaml_hosts].include?(URI.parse(uri).host))
+        feature.add_metadata YAML.load(RestClientWrapper.get(uri,{:accept => "application/x-yaml", :subjectid => subjectid}))
+      else
+        feature.add_metadata  Parser::Owl::Dataset.new(uri).load_metadata
+      end
+      feature
+    end
+    
+    # provides domain (possible target values) of classification feature 
+    # @return [Array] list with possible target values
+    def domain
+      if metadata[OT.acceptValue]
+        raise "accept value found, remove hack and implement correctly"
+      else
+      if @uri=~/feature\/26221/ || @uri=~/feature\/221726/ 
+        return ["mutagen" , "nonmutagen"]
+      end
+        return [true, false]
+      end
+    end
+    
+    # provides feature type, possible types are "regression" or "classification"
+    # @return [String] feature type, unknown if OT.isA property is unknown/ not set
+    def feature_type
+      case metadata[OT.isA]
+      when /NominalFeature/
+        "classification"
+      when /NumericFeature/
+        "regression"
+      else
+        "unknown"
+      end
+    end    
+    
+  end
+end