/* private constructor */
private TrackServer(int tcpPorts[], int udpPorts[], int commandPort) throws Throwable {
int listeners = 0;
// Start TCP listeners
if (!ListTools.isEmpty(tcpPorts)) {
for (int i = 0; i < tcpPorts.length; i++) {
int port = tcpPorts[i];
if (ServerSocketThread.isValidPort(port)) {
try {
this._startTCP(port);
listeners++;
} catch (java.net.BindException be) {
Print.logError("TCP: Error binding to port: %d", port);
}
} else {
throw new Exception("TCP: Invalid port number: " + port);
}
}
}
// Start UDP listeners
if (!ListTools.isEmpty(udpPorts)) {
for (int i = 0; i < udpPorts.length; i++) {
int port = udpPorts[i];
if (ServerSocketThread.isValidPort(port)) {
try {
ServerSocketThread sst = this._startUDP(port);
if (this.udpSocket == null) {
this.udpSocket = sst.getDatagramSocket();
}
listeners++;
} catch (java.net.BindException be) {
Print.logError("UDP: Error binding to port: %d", port);
}
} else {
throw new Exception("UDP: Invalid port number: " + port);
}
}
}
/* do we have any active listeners? */
if (listeners <= 0) {
Print.logWarn("No active device communication listeners!");
}
}
/* start UDP listener */
private ServerSocketThread _startUDP(int port) throws Throwable {
ServerSocketThread sst = null;
/* create server socket */
try {
sst = new ServerSocketThread(ServerSocketThread.createDatagramSocket(port));
} catch (Throwable t) { // trap any server exception
Print.logException("ServerSocket error", t);
throw t;
}
/* initialize */
sst.setTextPackets(Constants.ASCII_PACKETS);
sst.setBackspaceChar(null); // no backspaces allowed
sst.setLineTerminatorChar(Constants.ASCII_LINE_TERMINATOR);
sst.setIgnoreChar(Constants.ASCII_IGNORE_CHARS);
sst.setMaximumPacketLength(Constants.MAX_PACKET_LENGTH);
sst.setMinimumPacketLength(Constants.MIN_PACKET_LENGTH);
sst.setIdleTimeout(TrackServer.udpTimeout_idle);
sst.setPacketTimeout(TrackServer.udpTimeout_packet);
sst.setSessionTimeout(TrackServer.udpTimeout_session);
sst.setTerminateOnTimeout(Constants.TERMINATE_ON_TIMEOUT);
sst.setClientPacketHandlerClass(TrackClientPacketHandler.class);
/* start thread */
Print.logInfo(
"Starting UDP listener thread on port "
+ port
+ " [timeout="
+ sst.getSessionTimeout()
+ "ms] ...");
sst.start();
this.udpThread.add(sst);
return sst;
}
/* start TCP listener */
private void _startTCP(int port) throws Throwable {
ServerSocketThread sst = null;
/* create server socket */
try {
sst = new ServerSocketThread(port);
} catch (Throwable t) { // trap any server exception
Print.logException("ServerSocket error", t);
throw t;
}
/* initialize */
sst.setTextPackets(Constants.ASCII_PACKETS);
sst.setBackspaceChar(null); // no backspaces allowed
sst.setLineTerminatorChar(Constants.ASCII_LINE_TERMINATOR);
sst.setIgnoreChar(Constants.ASCII_IGNORE_CHARS);
sst.setMaximumPacketLength(Constants.MAX_PACKET_LENGTH);
sst.setMinimumPacketLength(Constants.MIN_PACKET_LENGTH);
sst.setIdleTimeout(TrackServer.tcpTimeout_idle); // time between packets
sst.setPacketTimeout(
TrackServer.tcpTimeout_packet); // time from start of packet to packet completion
sst.setSessionTimeout(TrackServer.tcpTimeout_session); // time for entire session
sst.setTerminateOnTimeout(Constants.TERMINATE_ON_TIMEOUT);
sst.setClientPacketHandlerClass(TrackClientPacketHandler.class);
sst.setLingerTimeoutSec(Constants.LINGER_ON_CLOSE_SEC);
/* start thread */
Print.logInfo(
"Starting TCP listener thread on port "
+ port
+ " [timeout="
+ sst.getSessionTimeout()
+ "ms] ...");
sst.start();
this.tcpThread.add(sst);
}