private void acceptConnection() throws IOException, BindException {
while (true) {
try {
Thread.sleep(500);
} catch (InterruptedException e) {
e.printStackTrace();
}
if (!connected) {
try {
serverSocket = new ServerSocket(ipParameters.getPort());
LOG.debug("Start Accept on port: " + ipParameters.getPort());
socket = serverSocket.accept();
LOG.info("Connected: " + socket.getInetAddress() + ":" + ipParameters.getPort());
if (getePoll() != null)
transport =
new EpollStreamTransport(
socket.getInputStream(), socket.getOutputStream(), getePoll());
else transport = new StreamTransport(socket.getInputStream(), socket.getOutputStream());
break;
} catch (Exception e) {
LOG.warn(
"Open connection failed on port "
+ ipParameters.getPort()
+ ", caused by "
+ e.getLocalizedMessage(),
e);
if (e instanceof SocketTimeoutException) {
continue;
} else if (e.getLocalizedMessage().contains("closed")) {
return;
} else if (e instanceof BindException) {
closeConnection();
throw (BindException) e;
}
}
}
}
conn = getMessageControl();
conn.setExceptionHandler(getExceptionHandler());
conn.DEBUG = true;
conn.start(transport, ipMessageParser, null, waitingRoomKeyFactory);
if (getePoll() == null) ((StreamTransport) transport).start("Modbus4J TcpMaster");
connected = true;
}
@Override
public void run() {
LOG.debug(" ListenerConnectionHandler::run() ");
if (ipParameters.isEncapsulated()) {
ipMessageParser = new EncapMessageParser(true);
waitingRoomKeyFactory = new EncapWaitingRoomKeyFactory();
} else {
ipMessageParser = new XaMessageParser(true);
waitingRoomKeyFactory = new XaWaitingRoomKeyFactory();
}
try {
acceptConnection();
} catch (IOException e) {
LOG.debug("Error in TCP Listener! - " + e.getLocalizedMessage(), e);
conn.close();
closeConnection();
getExceptionHandler().receivedException(new ModbusInitException(e));
}
}