hostage/src/de/tudarmstadt/informatik/hostage/sync/wifi_direct/WiFiP2pServerTask.java

package de.tudarmstadt.informatik.hostage.sync.wifi_direct;

import android.util.Log;

import java.io.IOException;
import java.io.InputStream;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.OutputStream;
import java.net.ServerSocket;
import java.net.Socket;

/**
 * Created by Julien on 07.01.2015.
 */
public class WiFiP2pServerTask extends BackgroundTask {

    private ServerSocket serverSocket;

    @Override
    public void interrupt(boolean b){
        super.interrupt(b);
        if (b && this.serverSocket != null) {
            try {
                this.serverSocket.close();
            } catch (IOException e) {
                Log.e("WiFiP2pServerTask", e.getMessage());
            }
        }
    }

    public WiFiP2pServerTask(BackgroundTaskCompletionListener l){
        super(l);
    }

    @Override
    public boolean performInBackground(){
        while (!this.isInterrupted()){
            try {
                this.serverSocket = new ServerSocket(8988);
                Log.d("WiFiP2pServerTask", "Server: Socket opened");
                Socket client = this.serverSocket.accept();
                Log.d("WiFiP2pServerTask", "Server: connection done");

                this.handleConnection(client, this.serverSocket);

                client.close();
                serverSocket.close();

                return true;
            } catch (ClassNotFoundException e){
                e.printStackTrace();
                Log.e("WiFiP2pServerTask", e.getMessage());
                return false;
            } catch (IOException  e) {
                e.printStackTrace();
                Log.e("WiFiP2pServerTask", e.getMessage());
                return false;
            }
        }
        return true;
    }



    private void handleConnection(Socket client, ServerSocket server) throws IOException, ClassNotFoundException {
        OutputStream os = client.getOutputStream();
        ObjectOutputStream oos = new ObjectOutputStream(os);
        oos.flush();

        InputStream is = client.getInputStream();
        ObjectInputStream ois = new ObjectInputStream(is);


        Object obj = ois.readObject();

        while (obj != null && obj instanceof WiFiP2pSerializableObject) {
            WiFiP2pSerializableObject receivedObj = (  WiFiP2pSerializableObject) obj;
            obj = null;
            WiFiP2pSerializableObject toSend = this.handleReceivedObject(receivedObj);
            if (toSend != null) {
                oos.writeObject(toSend);
                oos.flush();
                oos.reset();
            }
            try {
                obj = ois.readObject();
            }catch (IOException e){
                // IF NULL WAS TRANSMITTED
                obj = null;
            }
        }

        oos.close();
        os.close();
        ois.close();
        is.close();
    }

    public WiFiP2pSerializableObject handleReceivedObject(WiFiP2pSerializableObject receivedObj){

        return null;
    }
}