Java tutorial
package me.heyimblake.HiveMCRank.Utils; import org.bukkit.Bukkit; import org.json.JSONObject; import org.json.JSONTokener; import java.net.URL; import java.net.URLConnection; import java.util.UUID; import java.util.logging.Level; /** * @author heyimblake * <p> * This file is part of HiveMCRank. * Copyright (C) 2015 heyimblake * <p> * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation. * <p> * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * <p> * You should have received a copy of the GNU General Public License along * with this program; if not, see http://www.gnu.org/licenses/. */ public class WebConnector { private static WebConnector ourInstance = new WebConnector(); private WebConnector() { } public static WebConnector getInstance() { return ourInstance; } /** * Returns the Hive Name of the rank of a supplied UUID. Regular Member is returned if null. * * @param uuid the UUID of the player * @return Hive Name of the rank of the UUID * @throws Exception thrown if the UUID has never been on TheHive or TheHive's API is not available. Default Rank is returned. */ public String getHiveRank(final UUID uuid) throws Exception { String rankfromapi; final String uuidNoDash = uuid.toString().replace("-", ""); try { final String API_URL = "http://api.hivemc.com/v1/player/"; final URLConnection connection = new URL(API_URL + uuidNoDash).openConnection(); Bukkit.getServer().getLogger().log(Level.INFO, "Connection opened to " + API_URL + uuidNoDash); connection.addRequestProperty("User-Agent", "Mozilla/5.0"); final JSONTokener tokener = new JSONTokener(connection.getInputStream()); final JSONObject root = new JSONObject(tokener); if (root.getString("rankName") == null) { rankfromapi = "Regular Member"; } else { rankfromapi = root.getString("rankName"); } } catch (Exception e) { Bukkit.getServer().getLogger().log(Level.SEVERE, "Exception occurred while trying to get the HiveMC rank of " + uuid); Bukkit.getServer().getLogger().log(Level.SEVERE, "Chances are that the user has never logged onto TheHive before. Their rank has been set to regular for now."); rankfromapi = "Regular Member"; } return rankfromapi; } }