D-Net

        this.selCriteria = selCriteria;

    }

        final Gson g = new Gson();

        return g.toJson(this);

    }

		Configuration c = new Configuration();

		for(String r : res){

			c.addCommunity(parseCommunity(r));

		}

			SAXReader reader = new SAXReader();

			Document doc = reader.read(new StringReader(r));

			Community c = new Community();

			c.setId(doc.valueOf("./@id"));

			List <Node> list = doc.selectNodes("//subject");

			final List<String> sbj = new ArrayList<>();

			for(Node n : list){

				sbj.add(n.getText());

			}

			if(sbj.size()>0)

				c.setSubjects(sbj);