public boolean importUniAttr(String file) {
        try {
            FileReader read = new FileReader(file);
            BufferedReader br = new BufferedReader(read);
            String row;

            AGGraph graph = maker.createGraph(Constant.u_prefix);
            AGModel model = new AGModel(graph);

            try {
                while((row = br.readLine())!=null){
                    String[] infos = row.split(" ");
                    String code = infos[0].trim();
                    String name = infos[1].trim();

                    Resource attrRes = model.createResource(Constant.a_prefix + code);

                    attrRes.addProperty(UNI.name, name);
                }
            } finally {
                model.close();
                graph.close();
                br.close();
                read.close();
            }
        } catch (FileNotFoundException e) {
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        } catch (IOException e) {
            e.printStackTrace();  //To change body of catch statement use File | Settings | File Templates.
        }
        return true;  //To change body of implemented methods use File | Settings | File Templates.
    }