shoptable.java

网络游戏天堂1的java源代码。。。。。

/*
 * 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 2, 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 *
 * http://www.gnu.org/copyleft/gpl.html
 */
package l1j.server.server.datatables;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.logging.Level;
import java.util.logging.Logger;

import l1j.server.L1DatabaseFactory;
import l1j.server.server.model.L1PcInventory;
import l1j.server.server.model.Instance.L1ItemInstance;
import l1j.server.server.model.shop.L1AssessedItem;
import l1j.server.server.model.shop.L1Shop;
import l1j.server.server.templates.L1ShopItem;
import l1j.server.server.utils.SQLUtil;

public class ShopTable {

	private static final long serialVersionUID = 1L;

	private static l1j.eric.EricLogger _log =  l1j.eric.EricLogger.getLogger2(ShopTable.class.getName());

	private static ShopTable _instance;

	private final Map<Integer, L1Shop> _allShops = new HashMap<Integer, L1Shop>();
	//新所有物品販賣 by eric1300460
	private final Map<Integer, Integer> _allItemSells = new HashMap<Integer, Integer>();
	//~新所有物品販賣 by eric1300460
	public static ShopTable getInstance() {
		if (_instance == null) {
			_instance = new ShopTable();
		}
		return _instance;
	}

	private ShopTable() {
		loadShops();
	}

	private ArrayList<Integer> enumNpcIds() {
		ArrayList<Integer> ids = new ArrayList<Integer>();

		Connection con = null;
		PreparedStatement pstm = null;
		ResultSet rs = null;
		try {
			con = L1DatabaseFactory.getInstance().getConnection();
			pstm = con.prepareStatement("SELECT DISTINCT npc_id FROM shop");
			rs = pstm.executeQuery();
			while (rs.next()) {
				ids.add(rs.getInt("npc_id"));
			}
		} catch (SQLException e) {
			_log.log(Level.SEVERE, e.getLocalizedMessage(), e);
		} finally {
			SQLUtil.close(rs, pstm, con);
		}
		return ids;
	}

	private L1Shop loadShop(int npcId, ResultSet rs) throws SQLException {
		List<L1ShopItem> sellingList = new ArrayList<L1ShopItem>();
		List<L1ShopItem> purchasingList = new ArrayList<L1ShopItem>();
		while (rs.next()) {
			int itemId = rs.getInt("item_id");
			int sellingPrice = rs.getInt("selling_price");
			int purchasingPrice = rs.getInt("purchasing_price");
			int packCount = rs.getInt("pack_count");
			packCount = packCount == 0 ? 1 : packCount;
			//新所有物品販賣 by eric1300460
			switch(npcId){
			case 70068:case 70020:
			case 70024:case 70032:
			case 80075:
				continue;
			default:
				break;
			}
				
			if(0 <= sellingPrice){
				if(_allItemSells.get(itemId)==null){
					_allItemSells.put(itemId, sellingPrice/2);
				}else if(_allItemSells.get(itemId)<sellingPrice/2){
					_allItemSells.put(itemId, sellingPrice/2);
				}
			}else{  //-1
				if(0 <= purchasingPrice){
					if(_allItemSells.get(itemId)==null){
						_allItemSells.put(itemId, purchasingPrice);
					}else if(_allItemSells.get(itemId)<purchasingPrice){
						_allItemSells.put(itemId, purchasingPrice);
					}
				}
			}
			//~新所有物品販賣 by eric1300460
			if (0 <= sellingPrice) {
				L1ShopItem item = new L1ShopItem(itemId, sellingPrice,
						packCount);
				sellingList.add(item);
			}
			if (0 <= purchasingPrice) {
				L1ShopItem item = new L1ShopItem(itemId, purchasingPrice,
						packCount);
				purchasingList.add(item);
			}
		}
		return new L1Shop(npcId, sellingList, purchasingList);
	}

	private void loadShops() {
		Connection con = null;
		PreparedStatement pstm = null;
		ResultSet rs = null;
		try {
			con = L1DatabaseFactory.getInstance().getConnection();
			pstm = con
					.prepareStatement("SELECT * FROM shop WHERE npc_id=? ORDER BY order_id");
			for (int npcId : enumNpcIds()) {
				pstm.setInt(1, npcId);
				rs = pstm.executeQuery();
				L1Shop shop = loadShop(npcId, rs);
				_allShops.put(npcId, shop);
				rs.close();
			}
		} catch (SQLException e) {
			_log.log(Level.SEVERE, e.getLocalizedMessage(), e);
		} finally {
			SQLUtil.close(rs, pstm, con);
		}
	}
	//新所有物品販賣 by eric1300460
	public int getItemPrice(int id){
		if(_allItemSells.get(id)==null){
			return 0;
		}else{
			return _allItemSells.get(id);
		}
	}
	//~新所有物品販賣 by eric1300460
	public L1Shop get(int npcId) {
		return _allShops.get(npcId);
	}
}