private void setUp(){
		
		String schema = "";
		
		try {
			schema = readFile(schemaFilepath,Charset.defaultCharset());
		} catch (IOException e1) {
			// TODO Auto-generated catch block
			e1.printStackTrace();
		}
		
		// create a map of the schema
				
				ObjectMapper mapper = new ObjectMapper();
				try {
					schemaMap = mapper.readValue(schema, new TypeReference<HashMap<String,Object>>(){});
				} catch (Exception e1) {
					// TODO Auto-generated catch block
					e1.printStackTrace();
				} 
		
	}