diff options
Diffstat (limited to 'same-android/src')
3 files changed, 156 insertions, 0 deletions
diff --git a/same-android/src/main/java/com/orbekk/Broadcast.java b/same-android/src/main/java/com/orbekk/Broadcast.java new file mode 100644 index 0000000..84b2d6e --- /dev/null +++ b/same-android/src/main/java/com/orbekk/Broadcast.java @@ -0,0 +1,56 @@ +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 diff --git a/same-android/src/main/java/com/orbekk/HelloAndroidActivity.java b/same-android/src/main/java/com/orbekk/HelloAndroidActivity.java new file mode 100644 index 0000000..4160bf4 --- /dev/null +++ b/same-android/src/main/java/com/orbekk/HelloAndroidActivity.java @@ -0,0 +1,49 @@ +package com.orbekk; + +import com.orbekk.net.Broadcaster; + +import android.app.Activity; +import android.os.Bundle; +import android.util.Log; + +public class HelloAndroidActivity extends Activity { + + private static String TAG = "master"; + private PingServer pingServer; + + /** + * Called when the activity is first created. + * @param savedInstanceState If the activity is being re-initialized after + * previously being shut down then this Bundle contains the data it most + * recently supplied in onSaveInstanceState(Bundle). <b>Note: Otherwise it is null.</b> + */ + @Override + public void onCreate(Bundle savedInstanceState) { + super.onCreate(savedInstanceState); + + System.setProperty("java.net.preferIPv4Stack", "true"); + System.setProperty("java.net.preferIPv6Addresses", "false"); + + Log.i(TAG, "onCreate"); + setContentView(R.layout.main); + + pingServer = PingServer.createPingServer(10080); + try { + pingServer.start(); + } catch (Exception e) { + throw new RuntimeException(e.getMessage()); + } + +// Broadcast broadcast = new Broadcast(this); +// broadcast.sendBroadcast("Broadcast test".getBytes(), 10010); + Broadcaster broadcaster = new Broadcaster(); + Log.i(TAG, "Broadcast success: " + broadcaster.sendBroadcast(10010, "Broadcast test from Android".getBytes())); + } + + @Override + protected void onDestroy() { + pingServer.stop(); + super.onDestroy(); + } +} + diff --git a/same-android/src/main/java/com/orbekk/PingServer.java b/same-android/src/main/java/com/orbekk/PingServer.java new file mode 100644 index 0000000..5df2346 --- /dev/null +++ b/same-android/src/main/java/com/orbekk/PingServer.java @@ -0,0 +1,51 @@ +package com.orbekk; + +import org.eclipse.jetty.server.Server; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import com.googlecode.jsonrpc4j.JsonRpcServer; +import com.orbekk.rpc.PingService; +import com.orbekk.rpc.PingServiceImpl; +import com.orbekk.rpc.RpcHandler; + +public class PingServer { + private Server server; + private Logger logger = LoggerFactory.getLogger(getClass()); + + public PingServer(Server server) { + this.server = server; + } + + public static PingServer createPingServer(int port) { + PingService service = new PingServiceImpl(); + JsonRpcServer jsonServer = new JsonRpcServer(service, PingService.class); + + Server server = new Server(port); + RpcHandler rpcHandler = new RpcHandler(jsonServer); + server.setHandler(rpcHandler); + + return new PingServer(server); + } + + public void start() throws Exception { + logger.info("Starting server."); + server.start(); + } + + public void join() { + try { + server.join(); + } catch (InterruptedException e) { + logger.info("Received InterruptException while waiting for server.", e.fillInStackTrace()); + } + } + + public void stop() { + try { + server.stop(); + } catch (Exception e) { + logger.warn("Exception when stopping server.", e.fillInStackTrace()); + } + } +} |