trunk/java/com/l2jserver/gameserver/datatables/AnnouncementsTable.java

@@ -0,0 +1,174 @@
+/*
+ * Copyright (C) 2004-2014 L2J Server
+ * 
+ * This file is part of L2J Server.
+ * 
+ * L2J Server 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.
+ * 
+ * L2J Server 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.l2jserver.gameserver.datatables;
+
+import java.sql.Connection;
+import java.sql.ResultSet;
+import java.sql.Statement;
+import java.util.Collection;
+import java.util.Map;
+import java.util.concurrent.ConcurrentSkipListMap;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+import com.l2jserver.L2DatabaseFactory;
+import com.l2jserver.gameserver.model.actor.instance.L2PcInstance;
+import com.l2jserver.gameserver.model.announce.Announcement;
+import com.l2jserver.gameserver.model.announce.AnnouncementType;
+import com.l2jserver.gameserver.model.announce.AutoAnnouncement;
+import com.l2jserver.gameserver.model.announce.IAnnouncement;
+import com.l2jserver.gameserver.network.clientpackets.Say2;
+import com.l2jserver.gameserver.network.serverpackets.CreatureSay;
+
+/**
+ * @author UnAfraid
+ */
+public final class AnnouncementsTable
+{
+	private static Logger LOGGER = Logger.getLogger(AnnouncementsTable.class.getName());
+	
+	private final Map<Integer, IAnnouncement> _announcements = new ConcurrentSkipListMap<>();
+	
+	protected AnnouncementsTable()
+	{
+		load();
+	}
+	
+	/**
+	 * Loads all announcements from database.
+	 */
+	private void load()
+	{
+		_announcements.clear();
+		try (Connection con = L2DatabaseFactory.getInstance().getConnection();
+			Statement st = con.createStatement();
+			ResultSet rset = st.executeQuery("SELECT * FROM announcements"))
+		{
+			while (rset.next())
+			{
+				final AnnouncementType type = AnnouncementType.findById(rset.getInt("type"));
+				final Announcement announce;
+				switch (type)
+				{
+					case NORMAL:
+					case CRITICAL:
+					{
+						announce = new Announcement(rset);
+						break;
+					}
+					case AUTO_NORMAL:
+					case AUTO_CRITICAL:
+					{
+						announce = new AutoAnnouncement(rset);
+						break;
+					}
+					default:
+					{
+						continue;
+					}
+				}
+				_announcements.put(announce.getId(), announce);
+			}
+		}
+		catch (Exception e)
+		{
+			LOGGER.log(Level.WARNING, getClass().getSimpleName() + ": Failed loading announcements:", e);
+		}
+	}
+	
+	/**
+	 * Sending all announcements to the player
+	 * @param player
+	 */
+	public void showAnnouncements(L2PcInstance player)
+	{
+		sendAnnouncements(player, AnnouncementType.NORMAL);
+		sendAnnouncements(player, AnnouncementType.CRITICAL);
+		sendAnnouncements(player, AnnouncementType.EVENT);
+	}
+	
+	/**
+	 * Sends all announcements to the player by the specified type
+	 * @param player
+	 * @param type
+	 */
+	public void sendAnnouncements(L2PcInstance player, AnnouncementType type)
+	{
+		for (IAnnouncement announce : _announcements.values())
+		{
+			if (announce.isValid() && (announce.getType() == type))
+			{
+				player.sendPacket(new CreatureSay(0, Say2.ANNOUNCEMENT, player.getName(), announce.getContent()));
+			}
+		}
+	}
+	
+	/**
+	 * Adds announcement
+	 * @param announce
+	 */
+	public void addAnnouncement(IAnnouncement announce)
+	{
+		if (announce.storeMe())
+		{
+			_announcements.put(announce.getId(), announce);
+		}
+	}
+	
+	/**
+	 * Removes announcement by id
+	 * @param id
+	 * @return {@code true} if announcement exists and was deleted successfully, {@code false} otherwise.
+	 */
+	public boolean deleteAnnouncement(int id)
+	{
+		final IAnnouncement announce = _announcements.remove(id);
+		return (announce != null) && announce.deleteMe();
+	}
+	
+	/**
+	 * @param id
+	 * @return {@link IAnnouncement} by id
+	 */
+	public IAnnouncement getAnnounce(int id)
+	{
+		return _announcements.get(id);
+	}
+	
+	/**
+	 * @return {@link Collection} containing all announcements
+	 */
+	public Collection<IAnnouncement> getAllAnnouncements()
+	{
+		return _announcements.values();
+	}
+	
+	/**
+	 * @return Single instance of {@link AnnouncementsTable}
+	 */
+	public static AnnouncementsTable getInstance()
+	{
+		return SingletonHolder._instance;
+	}
+	
+	private static class SingletonHolder
+	{
+		protected static final AnnouncementsTable _instance = new AnnouncementsTable();
+	}
+}