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.pubsub.packet;
15
16import org.jivesoftware.smack.PacketCollector;
17import org.jivesoftware.smack.SmackConfiguration;
18import org.jivesoftware.smack.Connection;
19import org.jivesoftware.smack.XMPPException;
20import org.jivesoftware.smack.filter.PacketFilter;
21import org.jivesoftware.smack.filter.PacketIDFilter;
22import org.jivesoftware.smack.packet.Packet;
23
24/**
25 * Utility class for doing synchronous calls to the server.  Provides several
26 * methods for sending a packet to the server and waiting for the reply.
27 *
28 * @author Robin Collier
29 */
30final public class SyncPacketSend
31{
32	private SyncPacketSend()
33	{	}
34
35	static public Packet getReply(Connection connection, Packet packet, long timeout)
36		throws XMPPException
37	{
38        PacketFilter responseFilter = new PacketIDFilter(packet.getPacketID());
39        PacketCollector response = connection.createPacketCollector(responseFilter);
40
41        connection.sendPacket(packet);
42
43        // Wait up to a certain number of seconds for a reply.
44        Packet result = response.nextResult(timeout);
45
46        // Stop queuing results
47        response.cancel();
48
49        if (result == null) {
50            throw new XMPPException("No response from server.");
51        }
52        else if (result.getError() != null) {
53            throw new XMPPException(result.getError());
54        }
55        return result;
56	}
57
58	static public Packet getReply(Connection connection, Packet packet)
59		throws XMPPException
60	{
61		return getReply(connection, packet, SmackConfiguration.getPacketReplyTimeout());
62	}
63}
64