trunk/java/com/l2jserver/gameserver/model/L2Request.java

@@ -0,0 +1,150 @@
+/*
+ * 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.model;
+
+import com.l2jserver.gameserver.ThreadPoolManager;
+import com.l2jserver.gameserver.model.actor.instance.L2PcInstance;
+import com.l2jserver.gameserver.network.SystemMessageId;
+import com.l2jserver.gameserver.network.clientpackets.L2GameClientPacket;
+import com.l2jserver.gameserver.network.serverpackets.SystemMessage;
+
+/**
+ * This class manages requests (transactions) between two L2PcInstance.
+ * @author kriau
+ */
+public class L2Request
+{
+	private static final int REQUEST_TIMEOUT = 15; // in secs
+	
+	protected L2PcInstance _player;
+	protected L2PcInstance _partner;
+	protected boolean _isRequestor;
+	protected boolean _isAnswerer;
+	protected L2GameClientPacket _requestPacket;
+	
+	public L2Request(L2PcInstance player)
+	{
+		_player = player;
+	}
+	
+	protected void clear()
+	{
+		_partner = null;
+		_requestPacket = null;
+		_isRequestor = false;
+		_isAnswerer = false;
+	}
+	
+	/**
+	 * Set the L2PcInstance member of a transaction (ex : FriendInvite, JoinAlly, JoinParty...).
+	 * @param partner
+	 */
+	private synchronized void setPartner(L2PcInstance partner)
+	{
+		_partner = partner;
+	}
+	
+	/**
+	 * @return the L2PcInstance member of a transaction (ex : FriendInvite, JoinAlly, JoinParty...).
+	 */
+	public L2PcInstance getPartner()
+	{
+		return _partner;
+	}
+	
+	/**
+	 * Set the packet incomed from requester.
+	 * @param packet
+	 */
+	private synchronized void setRequestPacket(L2GameClientPacket packet)
+	{
+		_requestPacket = packet;
+	}
+	
+	/**
+	 * Return the packet originally incomed from requester.
+	 * @return
+	 */
+	public L2GameClientPacket getRequestPacket()
+	{
+		return _requestPacket;
+	}
+	
+	/**
+	 * Checks if request can be made and in success case puts both PC on request state.
+	 * @param partner
+	 * @param packet
+	 * @return
+	 */
+	public synchronized boolean setRequest(L2PcInstance partner, L2GameClientPacket packet)
+	{
+		if (partner == null)
+		{
+			_player.sendPacket(SystemMessageId.YOU_HAVE_INVITED_THE_WRONG_TARGET);
+			return false;
+		}
+		if (partner.getRequest().isProcessingRequest())
+		{
+			SystemMessage sm = SystemMessage.getSystemMessage(SystemMessageId.C1_IS_ON_ANOTHER_TASK_PLEASE_TRY_AGAIN_LATER);
+			sm.addString(partner.getName());
+			_player.sendPacket(sm);
+			return false;
+		}
+		if (isProcessingRequest())
+		{
+			_player.sendPacket(SystemMessageId.WAITING_FOR_ANOTHER_REPLY);
+			return false;
+		}
+		
+		_partner = partner;
+		_requestPacket = packet;
+		setOnRequestTimer(true);
+		_partner.getRequest().setPartner(_player);
+		_partner.getRequest().setRequestPacket(packet);
+		_partner.getRequest().setOnRequestTimer(false);
+		return true;
+	}
+	
+	private void setOnRequestTimer(boolean isRequestor)
+	{
+		_isRequestor = isRequestor ? true : false;
+		_isAnswerer = isRequestor ? false : true;
+		ThreadPoolManager.getInstance().scheduleGeneral(() -> clear(), REQUEST_TIMEOUT * 1000);
+	}
+	
+	/**
+	 * Clears PC request state. Should be called after answer packet receive.
+	 */
+	public void onRequestResponse()
+	{
+		if (_partner != null)
+		{
+			_partner.getRequest().clear();
+		}
+		clear();
+	}
+	
+	/**
+	 * @return {@code true} if a transaction is in progress.
+	 */
+	public boolean isProcessingRequest()
+	{
+		return _partner != null;
+	}
+}