diff options
Diffstat (limited to 'lib/parser.rb')
| -rw-r--r-- | lib/parser.rb | 33 |
1 files changed, 32 insertions, 1 deletions
diff --git a/lib/parser.rb b/lib/parser.rb index a913cf2..e055eec 100644 --- a/lib/parser.rb +++ b/lib/parser.rb @@ -30,7 +30,6 @@ module OpenTox # Read metadata from opentox service # @return [Hash] Object metadata def load_metadata(subjectid=nil) - if @dataset uri = File.join(@uri,"metadata") else @@ -55,6 +54,38 @@ module OpenTox end @metadata end + + # loads metadata from rdf-data + # @param [String] rdf + # @param [String] type of the info (e.g. OT.Task, OT.ErrorReport) needed to get the subject-uri + # @return [Hash] metadata + def self.metadata_from_rdf( rdf, type ) + # write to file and read convert with rapper into tripples + file = Tempfile.new("ot-rdfxml") + file.puts rdf + file.close + file = "file://"+file.path + #puts "cmd: rapper -i rdfxml -o ntriples #{file} 2>/dev/null" + triples = `rapper -i rdfxml -o ntriples #{file} 2>/dev/null` + + # load uri via type + uri = nil + triples.each_line do |line| + triple = line.to_triple + if triple[1] == RDF['type'] and triple[2]==type + raise "uri already set, two uris found with type: "+type.to_s if uri + uri = triple[0] + end + end + + # load metadata + metadata = {} + triples.each_line do |line| + triple = line.to_triple + metadata[triple[1]] = triple[2].split('^^').first if triple[0] == uri and triple[1] != RDF['type'] + end + metadata + end # Generic parser for all OpenTox classes class Generic |