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authorKjetil Ørbekk <kjetil.orbekk@gmail.com>2012-02-07 09:34:28 +0100
committerKjetil Ørbekk <kjetil.orbekk@gmail.com>2012-02-07 09:34:28 +0100
commit166b70fce6021e8f6cc9d8f0fa968c05a26aced2 (patch)
treecfda99142bf25b3f2367c4d9a2d2ef3156516740 /same/src/main/java
parentbd2a0390a6bd6c672bd1416d6894ac646128e9e2 (diff)
Add DiscoveryService.
Diffstat (limited to 'same/src/main/java')
-rw-r--r--same/src/main/java/com/orbekk/same/DiscoveryService.java44
1 files changed, 44 insertions, 0 deletions
diff --git a/same/src/main/java/com/orbekk/same/DiscoveryService.java b/same/src/main/java/com/orbekk/same/DiscoveryService.java
new file mode 100644
index 0000000..bc28a58
--- /dev/null
+++ b/same/src/main/java/com/orbekk/same/DiscoveryService.java
@@ -0,0 +1,44 @@
+package com.orbekk.same;
+
+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(int port, DiscoveryListener listener,
+ BroadcastListener broadcastListener) {
+ this.listener = listener;
+ this.broadcastListener = broadcastListener;
+ }
+
+ public void run() {
+ while (!Thread.interrupted()) {
+ DatagramPacket packet = broadcastListener.listen();
+ 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);
+ }
+ }
+ }
+
+ @Override public void interrupt() {
+ super.interrupt();
+ broadcastListener.interrupt();
+ }
+}