initial attempts to switch to rdfxml

1 files changed, 36 insertions, 19 deletions

diff --git a/lib/owl.rb b/lib/owl.rb
index c505f5c..4f3a5da 100644
--- a/lib/owl.rb
+++ b/lib/owl.rb
@@ -1,4 +1,7 @@
 require 'open3'
+require 'rdf'
+require 'rdf/raptor'
+include RDF
 # RDF namespaces
 RDF = Redland::Namespace.new 'http://www.w3.org/1999/02/22-rdf-syntax-ns#'
 OWL = Redland::Namespace.new 'http://www.w3.org/2002/07/owl#'
@@ -193,8 +196,9 @@ module OpenTox
 
     private
     def initialize
+      @triples = []
       @model = Redland::Model.new Redland::MemoryStore.new 
-      @triples = ""
+      #@triples = ""
     end
 
     # build new owl object
@@ -261,8 +265,15 @@ module OpenTox
       #stdin, stdout, stderr = Open3.popen3('rapper -I test.org  -i ntriples -o rdfxml -')
       #stdin.puts @triples
       #stdout
-      File.open("/tmp/d","w+") {|f| f.puts @triples}
-      `rapper -i ntriples -o rdfxml /tmp/d`
+      #File.open("/tmp/d","w+") {|f| f.puts @triples}
+      #`rapper -i ntriples -o rdfxml /tmp/d`
+      #@triples
+      output = RDF::Writer.for(:rdfxml).buffer do |writer|
+        #@triples.each do |statement|
+          #writer << statement
+        #end
+      end
+      #output
     end
   
     # returns the first object for subject:root_node and property
@@ -343,10 +354,10 @@ module OpenTox
     # ot:Model,rdf:type,owl:Class 
     def set_type(ot_class, current_node=@root_node)
       #@triples += "#{ot_class.to_s} #{RDF_TYPE.to_s} #{current_node.to_s}"
-      @triples << "#{current_node} #{RDF_TYPE} #{node(ot_class).to_s}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
-      @triples << "#{node(ot_class).to_s} #{RDF_TYPE} #{OWL_TYPE_CLASS}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
-      #@model.add current_node, RDF_TYPE, node(ot_class)
-      #@model.add node(ot_class), RDF_TYPE, OWL_TYPE_CLASS
+      #@triples << "#{current_node} #{RDF_TYPE} #{node(ot_class).to_s}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
+      #@triples << "#{node(ot_class).to_s} #{RDF_TYPE} #{OWL_TYPE_CLASS}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
+      add current_node, RDF_TYPE, node(ot_class)
+      add node(ot_class), RDF_TYPE, OWL_TYPE_CLASS
     end
     
     # example-triples for setting description of a model:
@@ -355,10 +366,10 @@ module OpenTox
     def set_literal(literal_name, literal_value, literal_datatype, current_node=@root_node)
       #@triples += "#{current_node} #{node(literal_name)} #{Redland::Literal.create(literal_value, literal_datatype)}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
       #TODO: add datatype
-      @triples << "#{current_node} #{node(literal_name)} \"#{literal_value}\".\n".gsub(/\[/,'<').gsub(/\]/,'>')
-      @triples << "#{node(literal_name)} #{RDF_TYPE} #{OWL_TYPE_LITERAL}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
-      #@model.add current_node, node(literal_name), Redland::Literal.create(literal_value, literal_datatype)
-      #@model.add node(literal_name), RDF_TYPE, OWL_TYPE_LITERAL
+      #@triples << "#{current_node} #{node(literal_name)} \"#{literal_value}\".\n".gsub(/\[/,'<').gsub(/\]/,'>')
+      #@triples << "#{node(literal_name)} #{RDF_TYPE} #{OWL_TYPE_LITERAL}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
+      add current_node, node(literal_name), Redland::Literal.create(literal_value, literal_datatype)
+      add node(literal_name), RDF_TYPE, OWL_TYPE_LITERAL
     end
     
     # example-triples for setting algorithm property of a model:
@@ -368,14 +379,20 @@ module OpenTox
     # ot:Algorithm,rdf:type,owl:Class
     def set_object_property(property, object, object_class, current_node=@root_node)
       object_node = Redland::Resource.new(object)
-      @triples << "#{current_node} #{node(property)} #{object_node}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
-      @triples << "#{node(property)} #{RDF_TYPE} #{OWL_TYPE_OBJECT_PROPERTY}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
-      @triples << "#{object_node} #{RDF_TYPE} #{node(object_class)}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
-      @triples << "#{node(object_class)} #{RDF_TYPE} #{OWL_TYPE_CLASS}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
-      #@model.add current_node, node(property), object_node
-      #@model.add node(property), RDF_TYPE, OWL_TYPE_OBJECT_PROPERTY
-      #@model.add object_node, RDF_TYPE, node(object_class)
-      #@model.add node(object_class), RDF_TYPE, OWL_TYPE_CLASS
+      #@triples << "#{current_node} #{node(property)} #{object_node}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
+      #@triples << "#{node(property)} #{RDF_TYPE} #{OWL_TYPE_OBJECT_PROPERTY}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
+      #@triples << "#{object_node} #{RDF_TYPE} #{node(object_class)}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
+      #@triples << "#{node(object_class)} #{RDF_TYPE} #{OWL_TYPE_CLASS}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
+      add current_node, node(property), object_node
+      add node(property), RDF_TYPE, OWL_TYPE_OBJECT_PROPERTY
+      add object_node, RDF_TYPE, node(object_class)
+      add node(object_class), RDF_TYPE, OWL_TYPE_CLASS
+    end
+
+    def add(s,p,o)
+      #@triples << "#{s} #{p} #{o}.\n".gsub(/\[/,'<').gsub(/\]/,'>')
+      @triples << [s,p,o]
+      #@model.add s,p,o
     end
 
     # this is (a recursiv method) to set nested-data via hashes (not only simple properties)