1/**
2 * All rights reserved. Licensed under the Apache License, Version 2.0 (the "License");
3 * you may not use this file except in compliance with the License.
4 * You may obtain a copy of the License at
5 *
6 *     http://www.apache.org/licenses/LICENSE-2.0
7 *
8 * Unless required by applicable law or agreed to in writing, software
9 * distributed under the License is distributed on an "AS IS" BASIS,
10 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
11 * See the License for the specific language governing permissions and
12 * limitations under the License.
13 */
14package org.jivesoftware.smackx.bytestreams.ibb;
15
16import org.jivesoftware.smack.PacketListener;
17import org.jivesoftware.smack.filter.AndFilter;
18import org.jivesoftware.smack.filter.IQTypeFilter;
19import org.jivesoftware.smack.filter.PacketFilter;
20import org.jivesoftware.smack.filter.PacketTypeFilter;
21import org.jivesoftware.smack.packet.IQ;
22import org.jivesoftware.smack.packet.Packet;
23import org.jivesoftware.smackx.bytestreams.ibb.packet.Close;
24
25/**
26 * CloseListener handles all In-Band Bytestream close requests.
27 * <p>
28 * If a close request is received it looks if a stored In-Band Bytestream
29 * session exists and closes it. If no session with the given session ID exists
30 * an &lt;item-not-found/&gt; error is returned to the sender.
31 *
32 * @author Henning Staib
33 */
34class CloseListener implements PacketListener {
35
36    /* manager containing the listeners and the XMPP connection */
37    private final InBandBytestreamManager manager;
38
39    /* packet filter for all In-Band Bytestream close requests */
40    private final PacketFilter closeFilter = new AndFilter(new PacketTypeFilter(
41                    Close.class), new IQTypeFilter(IQ.Type.SET));
42
43    /**
44     * Constructor.
45     *
46     * @param manager the In-Band Bytestream manager
47     */
48    protected CloseListener(InBandBytestreamManager manager) {
49        this.manager = manager;
50    }
51
52    public void processPacket(Packet packet) {
53        Close closeRequest = (Close) packet;
54        InBandBytestreamSession ibbSession = this.manager.getSessions().get(
55                        closeRequest.getSessionID());
56        if (ibbSession == null) {
57            this.manager.replyItemNotFoundPacket(closeRequest);
58        }
59        else {
60            ibbSession.closeByPeer(closeRequest);
61            this.manager.getSessions().remove(closeRequest.getSessionID());
62        }
63
64    }
65
66    /**
67     * Returns the packet filter for In-Band Bytestream close requests.
68     *
69     * @return the packet filter for In-Band Bytestream close requests
70     */
71    protected PacketFilter getFilter() {
72        return this.closeFilter;
73    }
74
75}
76