UUIDApi - Mineskin

UUIDApi.java

import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.UUID;

import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;

public class UUIDApi {
	private static final String API_LINK_PLAYER = "http://mineskin.ca/name/?uuid=";
	private static final String API_LINK_UUID = "http://mineskin.ca/uuid/?player=";
	private static final JSONParser jsonParser = new JSONParser();

	public static UUID getUUID(String player) {
		String strUUID = getUUIDToString(player);
		return strUUID == null ? null : UUID.fromString(strUUID);
	}

	public static String getUUIDToString(String player) {
		try {
			URL url = new URL(API_LINK_PLAYER + player);
			HttpURLConnection connection = (HttpURLConnection) url.openConnection();
			JSONObject object = (JSONObject) jsonParser.parse(new InputStreamReader(connection.getInputStream()));
			if (object.containsKey("uuid")) {
				String uuid = (String) object.get("uuid");

				if (uuid.length() != 32) {
					return null;
				}

				return uuid.substring(0, 8) + "-" + uuid.substring(8, 12) + "-" + uuid.substring(12, 16) + "-" + uuid.substring(16, 20) + "-" + uuid.substring(20, 32);
			}
		} catch (Exception ex) {
			ex.printStackTrace();
		}
		return null;
	}

	public static String getName(String uuid) {
		try {
			URL url = new URL(API_LINK_UUID + uuid.replaceAll("-", ""));
			HttpURLConnection connection = (HttpURLConnection) url.openConnection();
			JSONObject object = (JSONObject) jsonParser.parse(new InputStreamReader(connection.getInputStream()));
			if (object.containsKey("name")) {
				String player = (String) object.get("name");
				if (!player.isEmpty()) return player;
			}
		} catch (Exception ex) {
			ex.printStackTrace();
		}
		return null;
	}

	public static String getName(UUID uuid) {
		return getName(uuid.toString());
	}
}