package com.grt192.networking;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.util.Vector;
import javax.microedition.io.Connector;
import javax.microedition.io.StreamConnection;
import com.sun.squawk.io.BufferedReader;
import javax.microedition.io.ServerSocketConnection;
public class GRTSingleClientServer extends Thread implements GRTSocket {
public static final int POLL_TIME = 50;
private ServerSocketConnection server;
private StreamConnection client;
private BufferedReader in;
private OutputStreamWriter out;
private boolean connected;
private Vector serverSocketListeners;
private String lastData;
private boolean running;
public GRTSingleClientServer(int port) {
try {
server = (ServerSocketConnection) Connector.open("socket://:"
+ port);
} catch (IOException e) {
e.printStackTrace();
server = null;
}
connected = false;
serverSocketListeners = new Vector();
running = false;
}
public void run() {
running = true;
while (running) {
poll();
}
}
public synchronized void sendData(String data) {
if (connected) {
try {
out.write(data+"\n");
} catch (IOException e) {
e.printStackTrace();
}
}
}
public void connect() {
try {
client = server.acceptAndOpen();
in = new BufferedReader(new InputStreamReader(client
.openInputStream()));
out = new OutputStreamWriter(client.openOutputStream());
connected = true;
notifyConnected();
} catch (IOException e) {
e.printStackTrace();
}
}
protected void poll() {
if (!connected) {
connect();
}
try {
String latest = in.readLine();
if (latest != null && !latest.equals("")){
lastData = latest;
notifyListeners();
}
} catch (Exception e) {
e.printStackTrace();
disconnect();
}
}
private void notifyListeners() {
for (int i = 0; i < serverSocketListeners.size(); i++) {
((SocketListener) serverSocketListeners.elementAt(i))
.dataRecieved(new SocketEvent(this, SocketEvent.ON_DATA,
lastData));
}
}
private void notifyConnected() {
for (int i = 0; i < serverSocketListeners.size(); i++) {
((SocketListener) serverSocketListeners.elementAt(i))
.dataRecieved(new SocketEvent(this, SocketEvent.ON_CONNECT,
null));
}
}
private void notifyDisconnected() {
for (int i = 0; i < serverSocketListeners.size(); i++) {
((SocketListener) serverSocketListeners.elementAt(i))
.dataRecieved(new SocketEvent(this, SocketEvent.ON_DISCONNECT,
null));
}
}
public boolean isConnected() {
return connected;
}
public String getLastData() {
return lastData;
}
public boolean isRunning() {
return running;
}
public void stop() {
disconnect();
this.running = false;
}
public void disconnect() {
if (connected) {
try {
connected = false;
in.close();
out.close();
client.close();
notifyDisconnected();
} catch (IOException e) {
e.printStackTrace();
}
}
}
public void addSocketListener(SocketListener s) {
serverSocketListeners.addElement(s);
}
public void removeSocketListener(SocketListener s) {
serverSocketListeners.removeElement(s);
}
}