91 lines
2.4 KiB
Java
91 lines
2.4 KiB
Java
/*
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* ProtocolLib - Bukkit server library that allows access to the Minecraft protocol.
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* Copyright (C) 2012 Kristian S. Stangeland
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
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* without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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* See the GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with this program;
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* if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
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* 02111-1307 USA
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*/
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package com.comphenix.protocol.events;
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import com.comphenix.protocol.PacketType.Sender;
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/**
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* Used to set a packet filter.
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*
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* @author Kristian
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*/
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public enum ConnectionSide {
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/**
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* Listen for server side packets that will invoke onPacketSending().
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*/
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SERVER_SIDE,
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/**
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* Listen for client side packets that will invoke onPacketReceiving().
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*/
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CLIENT_SIDE,
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/**
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* Listen for both client and server side packets.
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*/
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BOTH;
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public boolean isForClient() {
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return this == CLIENT_SIDE || this == BOTH;
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}
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public boolean isForServer() {
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return this == SERVER_SIDE || this == BOTH;
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}
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/**
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* Retrieve the sender of this connection side.
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* <p>
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* This is NULL for {@link #BOTH}.
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* @return The sender.
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*/
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public Sender getSender() {
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if (this == SERVER_SIDE)
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return Sender.SERVER;
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else if (this == CLIENT_SIDE)
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return Sender.CLIENT;
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return null;
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}
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/**
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* If both connection sides are present, return {@link #BOTH} - otherwise, return the one valud connection side.
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* <p>
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* NULL is not a valid connection side.
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* @param a - the first connection side.
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* @param b - the second connection side.
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* @return BOTH or the one valid side, or NULL.
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*/
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public static ConnectionSide add(ConnectionSide a, ConnectionSide b) {
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if (a == null)
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return b;
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if (b == null)
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return a;
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// Now merge them together
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boolean client = a.isForClient() || b.isForClient();
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boolean server = a.isForServer() || b.isForServer();
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if (client && server)
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return BOTH;
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else if (client)
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return CLIENT_SIDE;
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else
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return SERVER_SIDE;
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}
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}
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