public void save() {
try {
File file = getFile();
if (!file.exists()) // noinspection ResultOfMethodCallIgnored
file.createNewFile();
JsonObject rootObject = new JsonObject();
JsonArray players = new JsonArray();
for (Player player : playerDB.values()) players.add(player.toJson());
rootObject.add("players", players);
JsonArray groups = new JsonArray();
for (Group group : groupDB.values()) groups.add(group.toJson());
rootObject.add("groups", groups);
BufferedWriter bw = new BufferedWriter(new FileWriter(file));
bw.write(GSON.toJson(rootObject));
bw.close();
} catch (IOException e) {
e.printStackTrace();
}
}
