Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package eu.asyncro.passmatters.network; import org.json.JSONObject; /** * Class responsible for manipulating with JSON strings. * @author Milan */ public class JsonAdapter { private static final String END = "\n"; private static final String CODE = "code"; private static final String MESSAGE = "message"; /** * Returns login token from received JSON string. * @param jsonString JSON with 'token' field * @return String token */ public static String getToken(String jsonString) { jsonString = jsonString.replace(END, ""); JSONObject object = new JSONObject(jsonString); if (object.getInt(CODE) == 1 && object.getString(MESSAGE).equals("Success")) { System.out.println(object.getString("token")); return object.getString("token"); } else return null; } /** * Creates JSON string with 'step' and 'token' fields. Used for TCP client * authentication. * @param token token for sending to the remote server * @return formatted JSON string */ public static String getAuthJsonString(String token) { JSONObject object = new JSONObject(); object.put("step", 1); object.put("token", token); return object.toString(); } }