private Configuration() {
		paths = new HashMap<String, String>();
		
		Yaml c = new Yaml();
		
		try {
			conf = c.loadAs(new FileReader("main_conf.yaml"), 
													ConfigurationBean.class);
		} catch (FileNotFoundException e) {
			//Logger.e("Impossible de charger la configuration principale" 
			//												+ e.getMessage());
		}
		
		
		try {
			Document directory = new SAXBuilder().build(conf.
														getDirectoryFilePath());
			for(Element e : directory.getRootElement().getChildren()) {
				System.out.println();
				paths.put(e.getAttributeValue("id"), e.getChildText("path"));
			}
			
		} catch (JDOMException e) {
			e.printStackTrace();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}