Java tutorial
/* * 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, either version 3 of the License, or (at your option) any later * version. * * 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. * * You should have received a copy of the GNU General Public License along with * this program. If not, see <http://www.gnu.org/licenses/>. */ package com.l2jfree.gameserver.instancemanager.leaderboards; import java.io.BufferedReader; import java.io.File; import java.io.FileReader; import java.io.FileWriter; import java.io.IOException; import java.io.LineNumberReader; import java.util.Map; import java.util.concurrent.Future; import javolution.util.FastMap; import org.apache.commons.io.IOUtils; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import com.l2jfree.Config; import com.l2jfree.gameserver.Announcements; import com.l2jfree.gameserver.ThreadPoolManager; import com.l2jfree.gameserver.gameobjects.L2Player; import com.l2jfree.gameserver.model.world.L2World; import com.l2jfree.gameserver.network.SystemMessageId; import com.l2jfree.gameserver.network.packets.server.ItemList; import com.l2jfree.gameserver.network.packets.server.SystemMessage; import com.l2jfree.gameserver.util.Util; /** * * @author KID modded for the peace loving fisherman by evill33t */ public class FishermanManager { private static final Log _log = LogFactory.getLog(FishermanManager.class); public Map<Integer, FishRank> _ranks = new FastMap<Integer, FishRank>(); protected Future<?> _actionTask = null; protected int SAVETASK_DELAY = Config.FISHERMAN_INTERVAL; protected Long nextTimeUpdateReward = 0L; public static FishermanManager getInstance() { return SingletonHolder._instance; } public void onCatch(int owner, String name) { FishRank ar = null; if (_ranks.get(owner) == null) ar = new FishRank(); else ar = _ranks.get(owner); ar.cought(); ar.name = name; _ranks.put(owner, ar); } public void onEscape(int owner, String name) { FishRank ar = null; if (_ranks.get(owner) == null) ar = new FishRank(); else ar = _ranks.get(owner); ar.escaped(); ar.name = name; _ranks.put(owner, ar); } public void startSaveTask() { if (_actionTask == null) _actionTask = ThreadPoolManager.getInstance().scheduleGeneralAtFixedRate(new saveTask(), 1000, SAVETASK_DELAY * 60000); } public void stopSaveTask() { if (_actionTask != null) _actionTask.cancel(true); _actionTask = null; } public class saveTask implements Runnable { @Override public void run() { _log.info("FishManager: Autotask init."); formRank(); saveData(); nextTimeUpdateReward = System.currentTimeMillis() + SAVETASK_DELAY * 60000; } } public void startTask() { if (_actionTask == null) _actionTask = ThreadPoolManager.getInstance().scheduleGeneralAtFixedRate(new saveTask(), 1000, SAVETASK_DELAY * 60000); } public void formRank() { Map<Integer, Integer> scores = new FastMap<Integer, Integer>(); for (int obj : _ranks.keySet()) { FishRank ar = _ranks.get(obj); scores.put(obj, ar.cought - ar.escaped); } scores = Util.sortMap(scores, false); FishRank arTop = null; int idTop = 0; for (int id : scores.keySet()) { arTop = _ranks.get(id); idTop = id; break; } if (arTop == null) { Announcements.getInstance().announceToAll("Fisherman: No winners at this time!"); return; } L2Player winner = L2World.getInstance().findPlayer(idTop); Announcements.getInstance() .announceToAll("Attention Fishermans: " + arTop.name + " is the winner for this time with " + arTop.cought + "/" + arTop.escaped + ". Next calculation in " + Config.FISHERMAN_INTERVAL + " min(s)."); if (winner != null && Config.FISHERMAN_REWARD_ID > 0) { winner.getInventory().addItem("FishManager", Config.FISHERMAN_REWARD_ID, Config.FISHERMAN_REWARD_COUNT, winner, null); if (Config.FISHERMAN_REWARD_COUNT > 1) //You have earned $s1. winner.sendPacket(new SystemMessage(SystemMessageId.EARNED_S2_S1_S) .addItemName(Config.FISHERMAN_REWARD_ID).addNumber(Config.FISHERMAN_REWARD_COUNT)); else winner.sendPacket( new SystemMessage(SystemMessageId.EARNED_S1).addItemName(Config.FISHERMAN_REWARD_ID)); winner.sendPacket(new ItemList(winner, false)); } _ranks.clear(); } public String showHtm(int owner) { Map<Integer, Integer> scores = new FastMap<Integer, Integer>(); for (int obj : _ranks.keySet()) { FishRank ar = _ranks.get(obj); scores.put(obj, ar.cought - ar.escaped); } scores = Util.sortMap(scores, false); int counter = 0, max = 20; String pt = "<html><body><center>" + "<font color=\"cc00ad\">TOP " + max + " Fisherman</font><br>"; pt += "<table width=260 border=0 cellspacing=0 cellpadding=0 bgcolor=333333>"; pt += "<tr> <td align=center>No.</td> <td align=center>Name</td> <td align=center>Cought</td> <td align=center>Escaped</td> </tr>"; pt += "<tr> <td align=center> </td> <td align=center> </td> <td align=center></td> <td align=center></td> </tr>"; boolean inTop = false; for (int id : scores.keySet()) { if (counter < max) { FishRank ar = _ranks.get(id); pt += tx(counter, ar.name, ar.cought, ar.escaped, id == owner); if (id == owner) { inTop = true; } counter++; } else break; } if (!inTop) { FishRank arMe = _ranks.get(owner); if (arMe != null) { pt += "<tr> <td align=center>...</td> <td align=center>...</td> <td align=center>...</td> <td align=center>...</td> </tr>"; int placeMe = 0; for (int idMe : scores.keySet()) { placeMe++; if (idMe == owner) break; } pt += tx(placeMe, arMe.name, arMe.cought, arMe.escaped, true); } } pt += "</table>"; pt += "<br><br>"; if (Config.FISHERMAN_REWARD_ID > 0) { pt += "Next Reward Time in <font color=\"LEVEL\">" + calcMinTo() + " min(s)</font><br1>"; pt += "<font color=\"aadd77\">" + Config.FISHERMAN_REWARD_COUNT + " &#" + Config.FISHERMAN_REWARD_ID + ";</font>"; } pt += "</center></body></html>"; return pt; } private int calcMinTo() { return ((int) (nextTimeUpdateReward - System.currentTimeMillis())) / 60000; } private String tx(int counter, String name, int kills, int deaths, boolean mi) { String t = ""; t += " <tr>" + "<td align=center>" + (mi ? "<font color=\"LEVEL\">" : "") + (counter + 1) + ".</td>" + "<td align=center>" + name + "</td>" + "<td align=center>" + kills + "</td>" + "<td align=center>" + deaths + "" + (mi ? "</font>" : "") + " </td>" + "</tr>"; return t; } public void engineInit() { _ranks = new FastMap<Integer, FishRank>(); String line = null; LineNumberReader lnr = null; String lineId = ""; FishRank rank = null; File file = new File(Config.DATAPACK_ROOT, "data/fish.dat"); try { boolean created = file.createNewFile(); if (created) _log.info("FishManager: fish.dat was not existing and has been created."); } catch (IOException e) { e.printStackTrace(); } finally { try { lnr = new LineNumberReader(new BufferedReader(new FileReader(file))); while ((line = lnr.readLine()) != null) { if (line.trim().length() == 0 || line.startsWith("#")) continue; lineId = line; line = line.replaceAll(" ", ""); String t[] = line.split(":"); int owner = Integer.parseInt(t[0]); rank = new FishRank(); rank.cought = Integer.parseInt(t[1].split("-")[0]); rank.escaped = Integer.parseInt(t[1].split("-")[1]); rank.name = t[2]; _ranks.put(owner, rank); } } catch (Exception e) { _log.warn("FishManager.engineInit() >> last line parsed is \n[" + lineId + "]\n", e); } finally { IOUtils.closeQuietly(lnr); } startSaveTask(); _log.info("FishManager: Loaded " + _ranks.size() + " player(s)."); } } public void saveData() { String pattern = ""; for (Integer object : _ranks.keySet()) { FishRank ar = _ranks.get(object); pattern += object + " : " + ar.cought + "-" + ar.escaped + " : " + ar.name + "\n"; } File file = new File(Config.DATAPACK_ROOT, "data/fish.dat"); try { FileWriter fw = new FileWriter(file); fw.write("# ownerId : cought-escaped-name\n"); fw.write("# ===============================\n\n"); fw.write(pattern); fw.flush(); fw.close(); } catch (IOException e) { _log.warn("", e); } } public class FishRank { public int cought, escaped; public String name; public FishRank() { cought = 0; escaped = 0; } public void cought() { cought++; } public void escaped() { escaped++; } } @SuppressWarnings("synthetic-access") private static class SingletonHolder { protected static final FishermanManager _instance = new FishermanManager(); } }