SettingsFileHandler.java (1711B) download
1package nl.isygameclient.util;
2
3import com.google.gson.Gson;
4import com.google.gson.GsonBuilder;
5import nl.isygameclient.settings.Settings;
6
7import java.io.FileWriter;
8import java.io.IOException;
9import java.nio.file.Files;
10import java.nio.file.Paths;
11
12
13/**
14 * This Class is for accessing and manipulating settings files.
15 * This class handles the loading and saving of settings data.
16 * @author A F Koens
17 */
18public abstract class SettingsFileHandler {
19 public static final String SETTINGS_FILENAME = "settings.json";
20
21
22 /**
23 * Save a settings object to a json file.
24 * @param settings a Settings object.
25 * */
26 public static void save(Settings settings) {
27 try {
28 Gson gson = new GsonBuilder()
29 .setPrettyPrinting()
30 .create();
31
32 FileWriter writer = new FileWriter(SETTINGS_FILENAME);
33 writer.write(gson.toJson(settings));
34 writer.close();
35 } catch (IOException e) {
36 e.printStackTrace();
37 }
38 }
39
40 /**
41 * Read a json file and loads its values into a Settings object.
42 * @return a Settings object.
43 * */
44 public static Settings load() {
45 try {
46 Gson gson = new GsonBuilder()
47 .setPrettyPrinting()
48 .create();
49
50 String inFile = new String(Files.readAllBytes(Paths.get(SETTINGS_FILENAME)));
51 return gson.fromJson(inFile, Settings.class);
52 } catch (IOException e) {
53 System.err.println("Could Not Load Settings File, Using Defaults Instead");
54 var defaults = new Settings();
55 save(defaults);
56 return defaults;
57 }
58 }
59}
60