public void load() throws IOException {
File file = getFile();
if (file.exists()) {
JsonObject rootObject = JSON_PARSER.parse(new FileReader(file)).getAsJsonObject();
for (JsonElement element : rootObject.getAsJsonArray("players")) {
Player player = new Player(element.getAsJsonObject());
playerDB.put(player.getName(), player);
}
for (JsonElement element : rootObject.getAsJsonArray("groups")) {
Group group = new Group(element.getAsJsonObject());
groupDB.put(group.getName(), group);
}
} else {
//noinspection ResultOfMethodCallIgnored
file.createNewFile();
JsonObject rootObject = new JsonObject();
rootObject.add("players", new JsonArray());
rootObject.add("groups", new JsonArray());
BufferedWriter bw = new BufferedWriter(new FileWriter(file));
bw.write(GSON.toJson(rootObject));
bw.close();
}
}