1 /*
2  * Copyright (C) 2004-2008 Jive Software. All rights reserved.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  *     http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 
17 package org.jivesoftware.openfire;
18 
19 import org.xmpp.packet.Packet;
20 import org.jivesoftware.openfire.auth.UnauthorizedException;
21 
22 /**
23  * Delivers packets to locally connected streams. This is the opposite
24  * of the packet transporter.
25  *
26  * @author Iain Shigeoka
27  */
28 public interface PacketDeliverer {
29 
30     /**
31      * Delivers the given packet based on packet recipient and sender. The
32      * deliverer defers actual routing decisions to other classes.
33      * <h2>Warning</h2>
34      * Be careful to enforce concurrency DbC of concurrent by synchronizing
35      * any accesses to class resources.
36      *
37      * @param packet the packet to route
38      * @throws PacketException if the packet is null or the packet could not be routed.
39      * @throws UnauthorizedException if the user is not authorised
40      */
deliver( Packet packet )41     void deliver( Packet packet ) throws UnauthorizedException, PacketException;
42 }
43