diff options
author | Kjetil Ørbekk <kjetil.orbekk@gmail.com> | 2012-01-27 14:13:30 +0100 |
---|---|---|
committer | Kjetil Ørbekk <kjetil.orbekk@gmail.com> | 2012-01-27 14:13:30 +0100 |
commit | 2570d2c6f0be6bb16630b5685063501dd931b4d2 (patch) | |
tree | 84fb900523b076c2e1205236ef712327e53c7df9 /same-android/src/main/java/com/orbekk/discovery/Broadcast.java | |
parent | da760fca66619e67d5a63e02768282fd6068d1f0 (diff) |
Refactor Android Broadcaster class.
– Add functionality to find current wi-fi IP.
– Clean up resulting code.
Diffstat (limited to 'same-android/src/main/java/com/orbekk/discovery/Broadcast.java')
-rw-r--r-- | same-android/src/main/java/com/orbekk/discovery/Broadcast.java | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/same-android/src/main/java/com/orbekk/discovery/Broadcast.java b/same-android/src/main/java/com/orbekk/discovery/Broadcast.java deleted file mode 100644 index c674f65..0000000 --- a/same-android/src/main/java/com/orbekk/discovery/Broadcast.java +++ /dev/null @@ -1,82 +0,0 @@ -package com.orbekk.discovery; - -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()); - private DatagramSocket socket = null; - - public Broadcast(Context context) { - this.context = context; - } - - public synchronized 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 synchronized boolean sendBroadcast(byte[] data, int port) { - try { - socket = new DatagramSocket(0); - 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; - } finally { - socket.close(); - socket = null; - } - } - - public synchronized DatagramPacket receiveBroadcast(int port) { - try { - socket = new DatagramSocket(port); - byte[] data = new byte[1024]; - DatagramPacket packet = new DatagramPacket(data, data.length); - socket.receive(packet); - return packet; - } catch (IOException e) { - logger.warn("Failed to receive broadcast.", e); - return null; - } finally { - socket.close(); - socket = null; - } - } - - public void interrupt() { - if (socket != null) { - socket.close(); - } - } -}
\ No newline at end of file |