Websocket : Is it possible to know from the program what is the reason for onClose being called - websocket

Question

I have a Sample WebSocket Program whown below which works fine
When ever the user closes the browser or if there is any excetion Or any disconnect , the onClose Method is
being called
My question is that , Is it possible to know from the program what is the reason for onClose being called ??
Please share your views , Thanks for reading .
public class Html5Servlet extends WebSocketServlet {
private AtomicInteger index = new AtomicInteger();
private static final List<String> tickers = new ArrayList<String>();
static{
tickers.add("ajeesh");
tickers.add("peeyu");
tickers.add("kidillan");
tickers.add("entammo");
}
/**
*
*/
private static final long serialVersionUID = 1L;
public WebSocket doWebSocketConnect(HttpServletRequest req, String resp) {
//System.out.println("doWebSocketConnect");
return new StockTickerSocket();
}
protected String getMyJsonTicker() throws Exception{
return "";
}
public class StockTickerSocket implements WebSocket.OnTextMessage{
private Connection connection;
private Timer timer;
#Override
public void onClose(int arg0, String arg1) {
System.out.println("onClose called!"+arg0);
}
#Override
public void onOpen(Connection connection) {
//System.out.println("onOpen");
this.connection=connection;
this.timer=new Timer();
}
#Override
public void onMessage(String data) {
//System.out.println("onMessage");
if(data.indexOf("disconnect")>=0){
connection.close();
timer.cancel();
}else{
sendMessage();
}
}
public void disconnect() {
System.out.println("disconnect called");
}
public void onDisconnect()
{
System.out.println("onDisconnect called");
}
private void sendMessage() {
if(connection==null||!connection.isOpen()){
//System.out.println("Connection is closed!!");
return;
}
timer.schedule(new TimerTask() {
#Override
public void run() {
try{
//System.out.println("Running task");
connection.sendMessage(getMyJsonTicker());
}
catch (IOException e) {
e.printStackTrace();
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}, new Date(),5000);
}
}
}

Answer 1

The signature for onClose is the following ...
#Override
public void onClose(int closeCode, String closeReason) {
System.out.println("onClose called - statusCode = " + closeCode);
System.out.println(" reason = " + closeReason);
}
Where int closeCode is any of the registered Close Status Codes.
And String closeReason is an optional (per protocol spec) close reason message.