blob: a1147cc149c31938ca2238ed69a307ea63864a45 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
|
package com.orbekk.same.discovery;
import java.net.DatagramPacket;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import com.orbekk.net.BroadcastListener;
public class DiscoveryService extends Thread {
private Logger logger = LoggerFactory.getLogger(getClass());
BroadcastListener broadcastListener;
DiscoveryListener listener;
public DiscoveryService(DiscoveryListener listener,
BroadcastListener broadcastListener) {
this.listener = listener;
this.broadcastListener = broadcastListener;
}
@Override
public void run() {
logger.info("DiscoveryService starting.");
while (!Thread.interrupted()) {
DatagramPacket packet = broadcastListener.listen();
if (packet == null) {
// An error or interrupt occurred.
continue;
}
String content = new String(packet.getData(), 0, packet.getLength());
String[] words = content.split(" ");
if (!content.startsWith("Discover") || words.length < 2) {
logger.warn("Invalid discovery message: {}", content);
continue;
}
String url = words[1];
logger.info("Received discovery from {}", url);
if (listener != null) {
listener.discover(url);
}
}
logger.info("DiscoveryService stopped.");
}
@Override public void interrupt() {
logger.info("Interrupt()");
super.interrupt();
broadcastListener.interrupt();
}
}
|