Java Utililty Methods HTTP Port Find

List of utility methods to do HTTP Port Find

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Description

The list of methods to do HTTP Port Find are organized into topic(s).

Method

booleanisLocalPortOccupied(int portNum)
is Local Port Occupied 
Socket s = new Socket();
try {
    s.connect(new InetSocketAddress(portNum));
    return s.isConnected();
} catch (Exception e) {
    return false;
} finally {
    try {
...
booleanisLocalPortUsed(int port)
Check if aport is being used in the local host 
boolean flag = true;
try {
    flag = isPortUsing("127.0.0.1", port);
} catch (Exception e) {
return flag;
booleanisLoclePortUsing(int port)
true:already in using false:not using 
boolean flag = true;
try {
    flag = isPortUsing("127.0.0.1", port);
} catch (Exception e) {
return flag;
booleanisMulticastSupported(NetworkInterface pNif)
Check whether the given interface supports multicast and is up 
return pNif != null && checkMethod(pNif, isUp) && checkMethod(pNif, supportsMulticast);
booleanisOpen(final int port)
Port is open. 
boolean open;
try {
    new Socket((String) null, port);
    open = true;
} catch (final IOException ex) {
    open = false;
return open;
...
booleanisPortActive(String host, int port)
is Port Active 
Socket s = null;
try {
    s = new Socket();
    s.setReuseAddress(true);
    SocketAddress sa = new InetSocketAddress(host, port);
    s.connect(sa, 3000);
    return true;
} catch (IOException e) {
...
booleanisPortAvailable(final int port)
Checks if the specified is available as listen port. 
try (ServerSocket tcp = new ServerSocket(port); DatagramSocket udp = new DatagramSocket(port)) {
    return tcp.isBound() && udp.isBound();
} catch (Exception e) { 
    return false;
booleanisPortAvailable(int p)
is Port Available 
try {
    ServerSocket test = new ServerSocket(p);
    test.close();
} catch (BindException e) {
    return false;
} catch (IOException e) {
    return false;
return true;
booleanisPortAvailable(int port)
Checks to see if a specific port is available. 
if ((port < MIN_PORT_NUMBER) || (port > MAX_PORT_NUMBER))
    return false;
ServerSocket ss = null;
DatagramSocket ds = null;
try {
    ss = new ServerSocket(port);
    ss.setReuseAddress(true);
    ds = new DatagramSocket(port);
...
booleanisPortAvailable(int port)
is Port Available 
try {
    Socket s = new Socket("127.0.0.1", port);
    s.close();
    return false;
} catch (Exception ex) {
    return true;