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authorKjetil Ørbekk <kjetil.orbekk@gmail.com>2012-01-26 15:57:57 +0100
committerKjetil Ørbekk <kjetil.orbekk@gmail.com>2012-01-26 15:57:57 +0100
commitc2c1e4c5aad74a7fbca5c281f9d8ea2d0ba99ad3 (patch)
tree03fe8c0a8e3eb1d9d0bac8b3545f08d0d916d8f7 /same-android/src/main/java/com/orbekk/Broadcast.java
parent55beb6df753604996ae61f8a099db40f0906804e (diff)
Add Discovery service.
DiscoveryService listens to UDP broadcasts.
Diffstat (limited to 'same-android/src/main/java/com/orbekk/Broadcast.java')
-rw-r--r--same-android/src/main/java/com/orbekk/Broadcast.java56
1 files changed, 0 insertions, 56 deletions
diff --git a/same-android/src/main/java/com/orbekk/Broadcast.java b/same-android/src/main/java/com/orbekk/Broadcast.java
deleted file mode 100644
index 84b2d6e..0000000
--- a/same-android/src/main/java/com/orbekk/Broadcast.java
+++ /dev/null
@@ -1,56 +0,0 @@
-package com.orbekk;
-
-import java.io.IOException;
-import java.net.DatagramPacket;
-import java.net.DatagramSocket;
-import java.net.InetAddress;
-import java.net.SocketException;
-import java.net.UnknownHostException;
-
-import org.slf4j.Logger;
-import org.slf4j.LoggerFactory;
-
-import android.content.Context;
-import android.net.DhcpInfo;
-import android.net.wifi.WifiManager;
-
-public class Broadcast {
- private Context context;
- private Logger logger = LoggerFactory.getLogger(getClass());
-
- public Broadcast(Context context) {
- this.context = context;
- }
-
- public InetAddress getBroadcastAddress() {
- WifiManager wifi = (WifiManager)context.getSystemService(Context.WIFI_SERVICE);
- DhcpInfo dhcp = wifi.getDhcpInfo();
-
- int broadcast = (dhcp.ipAddress & dhcp.netmask) | ~dhcp.netmask;
- byte[] quads = new byte[4];
- for (int k = 0; k < 4; k++)
- quads[k] = (byte) ((broadcast >> k * 8) & 0xFF);
- try {
- return InetAddress.getByAddress(quads);
- } catch (UnknownHostException e) {
- logger.warn("Failed to find broadcast address.");
- return null;
- }
- }
-
- public boolean sendBroadcast(byte[] data, int port) {
- try {
- DatagramSocket socket = new DatagramSocket(port);
- socket.setBroadcast(true);
- DatagramPacket packet = new DatagramPacket(data, data.length, getBroadcastAddress(), port);
- socket.send(packet);
- return true;
- } catch (SocketException e) {
- logger.warn("Failed to send broadcast.", e.fillInStackTrace());
- return false;
- } catch (IOException e) {
- logger.warn("Error when sending broadcast.", e.fillInStackTrace());
- return false;
- }
- }
-} \ No newline at end of file