StreamSource input = new StreamSource(new File("./filesCase/case"+this.id+".xml"));
            StreamSource xslCode = new StreamSource(new File("./filesCase/resultFromCase.xsl"));
            TransformerFactory tf = TransformerFactory.newInstance();
            Transformer trans;
            StringWriter sw = new StringWriter();
            try {
                trans = tf.newTransformer(xslCode);
                trans.transform(input, new StreamResult(sw));
            } catch (TransformerException ex) {
                Logger.getLogger(Case.class.getName()).log(Level.SEVERE, null, ex);
            }

            String result = sw.toString();
            return result;