diff options
author | Kjetil Ørbekk <kjetil.orbekk@gmail.com> | 2012-02-13 18:05:13 +0100 |
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committer | Kjetil Ørbekk <kjetil.orbekk@gmail.com> | 2012-02-13 18:05:13 +0100 |
commit | 947390013409e297cab8ec991212473ae4b76802 (patch) | |
tree | 9cd271a33efd3a2b05154010711bdcd67bdd5e0a /same-android/src/main/java/com/orbekk/discovery | |
parent | 585f0a27869c230917c220962e0faf954a283e81 (diff) |
Android Broadcaster implements BroadcastInterface.
Diffstat (limited to 'same-android/src/main/java/com/orbekk/discovery')
-rw-r--r-- | same-android/src/main/java/com/orbekk/discovery/Broadcaster.java | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/same-android/src/main/java/com/orbekk/discovery/Broadcaster.java b/same-android/src/main/java/com/orbekk/discovery/Broadcaster.java deleted file mode 100644 index 6744651..0000000 --- a/same-android/src/main/java/com/orbekk/discovery/Broadcaster.java +++ /dev/null @@ -1,94 +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 Broadcaster { - private Context context; - private Logger logger = LoggerFactory.getLogger(getClass()); - private DatagramSocket socket = null; - - public Broadcaster(Context context) { - this.context = context; - } - - public InetAddress fromInt(int ip) { - byte[] quads = new byte[4]; - for (int k = 0; k < 4; k++) - quads[k] = (byte) ((ip >> k * 8) & 0xFF); - try { - return InetAddress.getByAddress(quads); - } catch (UnknownHostException e) { - logger.warn("Failed to find broadcast address."); - return null; - } - } - - public DhcpInfo getDhcpInfo() { - WifiManager wifi = - (WifiManager)context.getSystemService(Context.WIFI_SERVICE); - return wifi.getDhcpInfo(); - } - - public synchronized InetAddress getWlanAddress() { - return fromInt(getDhcpInfo().ipAddress); - } - - public synchronized InetAddress getBroadcastAddress() { - DhcpInfo dhcp = getDhcpInfo(); - int broadcast = (dhcp.ipAddress & dhcp.netmask) | ~dhcp.netmask; - return fromInt(broadcast); - } - - public synchronized boolean sendUdpData(byte[] data, InetAddress ip, int port) { - try { - socket = new DatagramSocket(0); - socket.setBroadcast(true); - DatagramPacket packet = new DatagramPacket(data, data.length, ip, 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(); - } - } -}
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