Android Open Source - WiFiSharer Socket Server

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From Project

Back to project page WiFiSharer.

License

The source code is released under:

MIT License

Java Source Code

package com.example.wifisharer;
//from w w w .  j a v a 2 s .c om
import java.io.DataInputStream;
import java.io.DataOutput;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.net.InetAddress;
import java.net.NetworkInterface;
import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;
import java.nio.Buffer;
import java.util.Enumeration;

import android.content.Context;
import android.util.Log;

public class SocketServer {
  public Socket socket;
  DataInputStream dataInputStream;
  DataOutputStream dataOutputStream;
  Context con;
  public SocketServer(Context context)
  {
    socket=null;
    dataInputStream=null;
    dataOutputStream=null;
    con=context;
  }
  public String Listen() throws IOException
  {
    ServerSocket serverSocket = new ServerSocket(9999);
    Log.i("SERVER","Listening on "+getLocalIpAddress()+" 9999...");
    while(true)
    {
      try
      {
        socket = serverSocket.accept();
        //dataInputStream = new DataInputStream(socket.getInputStream());
        //dataOutputStream = new DataOutputStream(socket.getOutputStream());
        Log.i("SERVER","Address:"+socket.getInetAddress());
        //String filename = dataInputStream.readUTF();
        //dataOutputStream.writeUTF("Hello World");
        if(socket.isClosed())
          Log.i("SOCKET","Closed");
          else Log.i("SOCKET","Not closed");
        
        return "";
        
        //socket.getInetAddress()+" wants to share "+filename+" with you?
      }
      catch (IOException e)
      {
          // TODO Auto-generated catch block
        Log.i("SERVER","Encountered exception");
          e.printStackTrace();
      }
      finally
      {
        if(socket!=null||dataInputStream!=null|dataOutputStream!=null)
        try
        {
          if(socket!=null) socket.close();
          if(dataInputStream!=null) dataInputStream.close();
          if(dataOutputStream!=null) dataOutputStream.close();
        }
        catch (IOException e2) {
          // TODO: handle exception
          e2.printStackTrace();
          Log.i("SERVER","Encountered exception");
        }
      }
    }
  }
  public String getLocalIpAddress() {
      try {
          for (Enumeration<NetworkInterface> en = NetworkInterface.getNetworkInterfaces(); en.hasMoreElements();) {
              NetworkInterface intf = en.nextElement();
              for (Enumeration<InetAddress> enumIpAddr = intf.getInetAddresses(); enumIpAddr.hasMoreElements();) {
                  InetAddress inetAddress = enumIpAddr.nextElement();
                  if (!inetAddress.isLoopbackAddress()) {
                      return inetAddress.getHostAddress().toString();
                  }
              }
          }
      } catch (SocketException ex) {
          Log.e("SERVER", ex.toString());
      }
      return null;
  }
}

Java Source Code List

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