int
getFreeSocketPort() Return a free port number.
int port = 0;
try {
ServerSocket s = new ServerSocket(0);
port = s.getLocalPort();
s.close();
return port;
} catch (IOException e) {
return port;
String
getHostPort(Socket s) get Host Port
String h = s.getInetAddress().getHostAddress().toString();
int port = s.getPort();
return h + ":" + port;
int
getPort(ServerSocket server) get Port
int port = server.getLocalPort();
try {
server.close();
} catch (IOException e) {
e.printStackTrace();
return port;
ServerSocket
getRandomPortServerSocket() get Random Port Server Socket
for (int port = 900; port < Short.MAX_VALUE; port++) {
try {
return new ServerSocket(port);
} catch (IOException e) {
continue;
throw new IOException("No free port found.");
...
ServerSocket
getServerSocket(int i_Port) get Server Socket
ServerSocket v_Ret = null;
try {
v_Ret = new ServerSocket(i_Port);
} catch (Exception exce) {
v_Ret = null;
return v_Ret;
boolean
isValidSocket(String host, int port) is Valid Socket
try {
Socket s = new Socket(host, port);
boolean connected = s.isConnected();
try {
s.close();
} catch (Exception e) {
return connected;
...
void
releasePort(ServerSocket ss) release Port
if (ss == null)
return;
try {
ss.close();
} catch (IOException e) {
e.printStackTrace();
return;
...
void
removeSocket(String host, int port) remove Socket
try {
Socket socket = sockets.get(host + ":" + port);
if (socket != null) {
socket.close();
sockets.remove(host + ":" + port);
} catch (IOException e) {
e.printStackTrace();
...
void
waitForSocket(int port) wait For Socket
long notAfter = System.currentTimeMillis() + 5000;
for (; System.currentTimeMillis() < notAfter;) {
Socket sock = null;
try {
Thread.sleep(100);
sock = new Socket("127.0.0.1", port);
break;
} catch (Exception ex) {
...